diff --git a/shim/.buckconfig b/shim/.buckconfig
index 971b77525c8..de18401ccbb 100644
--- a/shim/.buckconfig
+++ b/shim/.buckconfig
@@ -1,3 +1,10 @@
+# Copyright (c) Meta Platforms, Inc. and affiliates.
+#
+# This source code is licensed under both the MIT license found in the
+# LICENSE-MIT file in the root directory of this source tree and the Apache
+# License, Version 2.0 found in the LICENSE-APACHE file in the root directory
+# of this source tree.
+
 [cells]
 shim = .
 prelude = prelude
diff --git a/shim/.buckroot b/shim/.buckroot
index e69de29bb2d..a869e838b4c 100644
--- a/shim/.buckroot
+++ b/shim/.buckroot
@@ -0,0 +1,6 @@
+# Copyright (c) Meta Platforms, Inc. and affiliates.
+#
+# This source code is licensed under both the MIT license found in the
+# LICENSE-MIT file in the root directory of this source tree and the Apache
+# License, Version 2.0 found in the LICENSE-APACHE file in the root directory
+# of this source tree.
diff --git a/shim/.gitignore b/shim/.gitignore
index a1412f7fa8e..ca95b0e4631 100644
--- a/shim/.gitignore
+++ b/shim/.gitignore
@@ -1,3 +1,10 @@
+# Copyright (c) Meta Platforms, Inc. and affiliates.
+#
+# This source code is licensed under both the MIT license found in the
+# LICENSE-MIT file in the root directory of this source tree and the Apache
+# License, Version 2.0 found in the LICENSE-APACHE file in the root directory
+# of this source tree.
+
 # We currently expect end users to run reindeer vendor themselves
 # so mark these things as to ignore
 /third-party/rust/.cargo/
diff --git a/shim/BUCK b/shim/BUCK
index e25618a0730..30019fa0007 100644
--- a/shim/BUCK
+++ b/shim/BUCK
@@ -1,3 +1,10 @@
+# Copyright (c) Meta Platforms, Inc. and affiliates.
+#
+# This source code is licensed under both the MIT license found in the
+# LICENSE-MIT file in the root directory of this source tree and the Apache
+# License, Version 2.0 found in the LICENSE-APACHE file in the root directory
+# of this source tree.
+
 load("@prelude//toolchains:cxx.bzl", "system_cxx_toolchain")
 load("@prelude//toolchains:genrule.bzl", "system_genrule_toolchain")
 load("@prelude//toolchains:go.bzl", "system_go_toolchain")
diff --git a/shim/README.md b/shim/README.md
index 564697b4d67..72345d6ba05 100644
--- a/shim/README.md
+++ b/shim/README.md
@@ -9,3 +9,10 @@ should be nearly identical to the internal buck2 experience.
 
 Prefer to use [rules from the buck2 prelude](https://buck2.build/docs/prelude/globals/)
 and the [buck2 build apis](https://buck2.build/docs/api/build/globals/)
+
+## License
+
+This source code is licensed under both the MIT license found in the
+LICENSE-MIT file in the root directory of this source tree and the Apache
+License, Version 2.0 found in the LICENSE-APACHE file in the root directory
+of this source tree.
diff --git a/shim/third-party/macros/rust_third_party.bzl b/shim/third-party/macros/rust_third_party.bzl
index f6a0bd3d227..d00ddce8227 100644
--- a/shim/third-party/macros/rust_third_party.bzl
+++ b/shim/third-party/macros/rust_third_party.bzl
@@ -1,3 +1,10 @@
+# Copyright (c) Meta Platforms, Inc. and affiliates.
+#
+# This source code is licensed under both the MIT license found in the
+# LICENSE-MIT file in the root directory of this source tree and the Apache
+# License, Version 2.0 found in the LICENSE-APACHE file in the root directory
+# of this source tree.
+
 # @nolint
 
 def third_party_rust_prebuilt_cxx_library(name, **kwargs):
diff --git a/shim/third-party/ocaml/BUCK b/shim/third-party/ocaml/BUCK
index 2343d7b5ee9..1b62b09b577 100644
--- a/shim/third-party/ocaml/BUCK
+++ b/shim/third-party/ocaml/BUCK
@@ -1,3 +1,10 @@
+# Copyright (c) Meta Platforms, Inc. and affiliates.
+#
+# This source code is licensed under both the MIT license found in the
+# LICENSE-MIT file in the root directory of this source tree and the Apache
+# License, Version 2.0 found in the LICENSE-APACHE file in the root directory
+# of this source tree.
+
 # @lint-ignore BUCKLINT: avoid "Direct usage of native rules is not allowed."
 prebuilt_cxx_library(
     name = "ocaml-dev",
diff --git a/shim/third-party/ocaml/opam/lib/ocaml b/shim/third-party/ocaml/opam/lib/ocaml
index 8bd17a7ca81..971daaba53a 100644
--- a/shim/third-party/ocaml/opam/lib/ocaml
+++ b/shim/third-party/ocaml/opam/lib/ocaml
@@ -1 +1,8 @@
+# Copyright (c) Meta Platforms, Inc. and affiliates.
+#
+# This source code is licensed under both the MIT license found in the
+# LICENSE-MIT file in the root directory of this source tree and the Apache
+# License, Version 2.0 found in the LICENSE-APACHE file in the root directory
+# of this source tree.
+
 # Fake file so that buck2 can run in non-ocamlrep repos
diff --git a/shim/third-party/proto/BUCK b/shim/third-party/proto/BUCK
index d8381b74dc0..aefe5570a8e 100644
--- a/shim/third-party/proto/BUCK
+++ b/shim/third-party/proto/BUCK
@@ -1,3 +1,10 @@
+# Copyright (c) Meta Platforms, Inc. and affiliates.
+#
+# This source code is licensed under both the MIT license found in the
+# LICENSE-MIT file in the root directory of this source tree and the Apache
+# License, Version 2.0 found in the LICENSE-APACHE file in the root directory
+# of this source tree.
+
 # @lint-ignore BUCKLINT: avoid "Direct usage of native rules is not allowed."
 load(":defs.bzl", "protoc_distribution")
 
diff --git a/shim/third-party/proto/defs.bzl b/shim/third-party/proto/defs.bzl
index 18938c5a7fd..9f8d50608b8 100644
--- a/shim/third-party/proto/defs.bzl
+++ b/shim/third-party/proto/defs.bzl
@@ -1,3 +1,10 @@
+# Copyright (c) Meta Platforms, Inc. and affiliates.
+#
+# This source code is licensed under both the MIT license found in the
+# LICENSE-MIT file in the root directory of this source tree and the Apache
+# License, Version 2.0 found in the LICENSE-APACHE file in the root directory
+# of this source tree.
+
 load("@prelude//http_archive/exec_deps.bzl", "HttpArchiveExecDeps")
 load(":releases.bzl", "releases")
 
diff --git a/shim/third-party/proto/releases.bzl b/shim/third-party/proto/releases.bzl
index 153ca496e4c..2feb48e70e6 100644
--- a/shim/third-party/proto/releases.bzl
+++ b/shim/third-party/proto/releases.bzl
@@ -1,3 +1,10 @@
+# Copyright (c) Meta Platforms, Inc. and affiliates.
+#
+# This source code is licensed under both the MIT license found in the
+# LICENSE-MIT file in the root directory of this source tree and the Apache
+# License, Version 2.0 found in the LICENSE-APACHE file in the root directory
+# of this source tree.
+
 # @generated
 # Update with ./update.py > releases.bzl
 releases = {
diff --git a/shim/third-party/proto/update.py b/shim/third-party/proto/update.py
index cfee489f671..c3ac3a631a1 100755
--- a/shim/third-party/proto/update.py
+++ b/shim/third-party/proto/update.py
@@ -1,4 +1,11 @@
 #!/usr/bin/env python3
+# Copyright (c) Meta Platforms, Inc. and affiliates.
+#
+# This source code is licensed under both the MIT license found in the
+# LICENSE-MIT file in the root directory of this source tree and the Apache
+# License, Version 2.0 found in the LICENSE-APACHE file in the root directory
+# of this source tree.
+
 """Query recent Github release artifacts for protobuf.
 
 Use this script to update the releases.bzl file that contains metadata about
@@ -36,6 +43,14 @@
   }
 }
 """
+COPYRIGHT_HEADER = """\
+# Copyright (c) Meta Platforms, Inc. and affiliates.
+#
+# This source code is licensed under both the MIT license found in the
+# LICENSE-MIT file in the root directory of this source tree and the Apache
+# License, Version 2.0 found in the LICENSE-APACHE file in the root directory
+# of this source tree.
+"""
 
 async def query_releases():
     async with aiohttp.ClientSession(raise_for_status=True) as session:
@@ -91,6 +106,7 @@ async def main():
     releases = await query_releases()
     formatted = format_releases(releases)
     with_sha256 = await hash_releases(formatted)
+    print(COPYRIGHT_HEADER)
     print("# @" + "generated")
     print("# Update with ./update.py > releases.bzl")
     print("releases = ", json.dumps(with_sha256, indent=4))
diff --git a/shim/third-party/rust/.gitignore b/shim/third-party/rust/.gitignore
index c18f3dc437a..95e346d623f 100644
--- a/shim/third-party/rust/.gitignore
+++ b/shim/third-party/rust/.gitignore
@@ -1,3 +1,10 @@
+# Copyright (c) Meta Platforms, Inc. and affiliates.
+#
+# This source code is licensed under both the MIT license found in the
+# LICENSE-MIT file in the root directory of this source tree and the Apache
+# License, Version 2.0 found in the LICENSE-APACHE file in the root directory
+# of this source tree.
+
 # Ignore Cargo-related stuff
 .cargo/registry
 .cargo/git
diff --git a/shim/third-party/rust/Cargo.toml b/shim/third-party/rust/Cargo.toml
index 903e5fcb1c3..84ec27d4c2b 100644
--- a/shim/third-party/rust/Cargo.toml
+++ b/shim/third-party/rust/Cargo.toml
@@ -1,3 +1,10 @@
+# Copyright (c) Meta Platforms, Inc. and affiliates.
+#
+# This source code is licensed under both the MIT license found in the
+# LICENSE-MIT file in the root directory of this source tree and the Apache
+# License, Version 2.0 found in the LICENSE-APACHE file in the root directory
+# of this source tree.
+
 # Definitions of third-party libraries used for buck2 build of buck2.
 # This file is **not** used by cargo build of buck2.
 # See the <project_root>/docs/bootstrapping.md for more details.
diff --git a/shim/third-party/rust/defs.bzl b/shim/third-party/rust/defs.bzl
index 6d295fdd565..ae25b318287 100644
--- a/shim/third-party/rust/defs.bzl
+++ b/shim/third-party/rust/defs.bzl
@@ -1,3 +1,10 @@
+# Copyright (c) Meta Platforms, Inc. and affiliates.
+#
+# This source code is licensed under both the MIT license found in the
+# LICENSE-MIT file in the root directory of this source tree and the Apache
+# License, Version 2.0 found in the LICENSE-APACHE file in the root directory
+# of this source tree.
+
 def rust_library_from_crates(name):
     # @lint-ignore BUCKLINT: avoid "Direct usage of native rules is not allowed."
     native.export_file(name = name, src = "BUCK", visibility = ["PUBLIC"])
diff --git a/shim/third-party/rust/fixups/ahash/fixups.toml b/shim/third-party/rust/fixups/ahash/fixups.toml
index db40d72cb2e..554cc0dae2b 100644
--- a/shim/third-party/rust/fixups/ahash/fixups.toml
+++ b/shim/third-party/rust/fixups/ahash/fixups.toml
@@ -1 +1,8 @@
+# Copyright (c) Meta Platforms, Inc. and affiliates.
+#
+# This source code is licensed under both the MIT license found in the
+# LICENSE-MIT file in the root directory of this source tree and the Apache
+# License, Version 2.0 found in the LICENSE-APACHE file in the root directory
+# of this source tree.
+
 buildscript = []
diff --git a/shim/third-party/rust/fixups/anyhow/fixups.toml b/shim/third-party/rust/fixups/anyhow/fixups.toml
index db40d72cb2e..554cc0dae2b 100644
--- a/shim/third-party/rust/fixups/anyhow/fixups.toml
+++ b/shim/third-party/rust/fixups/anyhow/fixups.toml
@@ -1 +1,8 @@
+# Copyright (c) Meta Platforms, Inc. and affiliates.
+#
+# This source code is licensed under both the MIT license found in the
+# LICENSE-MIT file in the root directory of this source tree and the Apache
+# License, Version 2.0 found in the LICENSE-APACHE file in the root directory
+# of this source tree.
+
 buildscript = []
diff --git a/shim/third-party/rust/fixups/async-trait/fixups.toml b/shim/third-party/rust/fixups/async-trait/fixups.toml
index db40d72cb2e..554cc0dae2b 100644
--- a/shim/third-party/rust/fixups/async-trait/fixups.toml
+++ b/shim/third-party/rust/fixups/async-trait/fixups.toml
@@ -1 +1,8 @@
+# Copyright (c) Meta Platforms, Inc. and affiliates.
+#
+# This source code is licensed under both the MIT license found in the
+# LICENSE-MIT file in the root directory of this source tree and the Apache
+# License, Version 2.0 found in the LICENSE-APACHE file in the root directory
+# of this source tree.
+
 buildscript = []
diff --git a/shim/third-party/rust/fixups/atomic/fixups.toml b/shim/third-party/rust/fixups/atomic/fixups.toml
index 5e026f75e0d..d514599437f 100644
--- a/shim/third-party/rust/fixups/atomic/fixups.toml
+++ b/shim/third-party/rust/fixups/atomic/fixups.toml
@@ -1,2 +1,9 @@
+# Copyright (c) Meta Platforms, Inc. and affiliates.
+#
+# This source code is licensed under both the MIT license found in the
+# LICENSE-MIT file in the root directory of this source tree and the Apache
+# License, Version 2.0 found in the LICENSE-APACHE file in the root directory
+# of this source tree.
+
 [[buildscript]]
 [buildscript.rustc_flags]
diff --git a/shim/third-party/rust/fixups/axum-core/fixups.toml b/shim/third-party/rust/fixups/axum-core/fixups.toml
index db40d72cb2e..554cc0dae2b 100644
--- a/shim/third-party/rust/fixups/axum-core/fixups.toml
+++ b/shim/third-party/rust/fixups/axum-core/fixups.toml
@@ -1 +1,8 @@
+# Copyright (c) Meta Platforms, Inc. and affiliates.
+#
+# This source code is licensed under both the MIT license found in the
+# LICENSE-MIT file in the root directory of this source tree and the Apache
+# License, Version 2.0 found in the LICENSE-APACHE file in the root directory
+# of this source tree.
+
 buildscript = []
diff --git a/shim/third-party/rust/fixups/axum/fixups.toml b/shim/third-party/rust/fixups/axum/fixups.toml
index db40d72cb2e..554cc0dae2b 100644
--- a/shim/third-party/rust/fixups/axum/fixups.toml
+++ b/shim/third-party/rust/fixups/axum/fixups.toml
@@ -1 +1,8 @@
+# Copyright (c) Meta Platforms, Inc. and affiliates.
+#
+# This source code is licensed under both the MIT license found in the
+# LICENSE-MIT file in the root directory of this source tree and the Apache
+# License, Version 2.0 found in the LICENSE-APACHE file in the root directory
+# of this source tree.
+
 buildscript = []
diff --git a/shim/third-party/rust/fixups/backtrace/fixups.toml b/shim/third-party/rust/fixups/backtrace/fixups.toml
index db40d72cb2e..554cc0dae2b 100644
--- a/shim/third-party/rust/fixups/backtrace/fixups.toml
+++ b/shim/third-party/rust/fixups/backtrace/fixups.toml
@@ -1 +1,8 @@
+# Copyright (c) Meta Platforms, Inc. and affiliates.
+#
+# This source code is licensed under both the MIT license found in the
+# LICENSE-MIT file in the root directory of this source tree and the Apache
+# License, Version 2.0 found in the LICENSE-APACHE file in the root directory
+# of this source tree.
+
 buildscript = []
diff --git a/shim/third-party/rust/fixups/blake3/fixups.toml b/shim/third-party/rust/fixups/blake3/fixups.toml
index 389fd57acfc..19d0d8adf83 100644
--- a/shim/third-party/rust/fixups/blake3/fixups.toml
+++ b/shim/third-party/rust/fixups/blake3/fixups.toml
@@ -1,3 +1,10 @@
+# Copyright (c) Meta Platforms, Inc. and affiliates.
+#
+# This source code is licensed under both the MIT license found in the
+# LICENSE-MIT file in the root directory of this source tree and the Apache
+# License, Version 2.0 found in the LICENSE-APACHE file in the root directory
+# of this source tree.
+
 buildscript = []
 
 ## The various X86 platform fixups
diff --git a/shim/third-party/rust/fixups/bumpalo/fixups.toml b/shim/third-party/rust/fixups/bumpalo/fixups.toml
index edd9a2079bd..928a0682c46 100644
--- a/shim/third-party/rust/fixups/bumpalo/fixups.toml
+++ b/shim/third-party/rust/fixups/bumpalo/fixups.toml
@@ -1 +1,8 @@
+# Copyright (c) Meta Platforms, Inc. and affiliates.
+#
+# This source code is licensed under both the MIT license found in the
+# LICENSE-MIT file in the root directory of this source tree and the Apache
+# License, Version 2.0 found in the LICENSE-APACHE file in the root directory
+# of this source tree.
+
 extra_srcs = ["README.md"]
diff --git a/shim/third-party/rust/fixups/bzip2-sys/fixups.toml b/shim/third-party/rust/fixups/bzip2-sys/fixups.toml
index db40d72cb2e..554cc0dae2b 100644
--- a/shim/third-party/rust/fixups/bzip2-sys/fixups.toml
+++ b/shim/third-party/rust/fixups/bzip2-sys/fixups.toml
@@ -1 +1,8 @@
+# Copyright (c) Meta Platforms, Inc. and affiliates.
+#
+# This source code is licensed under both the MIT license found in the
+# LICENSE-MIT file in the root directory of this source tree and the Apache
+# License, Version 2.0 found in the LICENSE-APACHE file in the root directory
+# of this source tree.
+
 buildscript = []
diff --git a/shim/third-party/rust/fixups/clap/fixups.toml b/shim/third-party/rust/fixups/clap/fixups.toml
index ee94fdc2f29..41256d384f5 100644
--- a/shim/third-party/rust/fixups/clap/fixups.toml
+++ b/shim/third-party/rust/fixups/clap/fixups.toml
@@ -1 +1,8 @@
+# Copyright (c) Meta Platforms, Inc. and affiliates.
+#
+# This source code is licensed under both the MIT license found in the
+# LICENSE-MIT file in the root directory of this source tree and the Apache
+# License, Version 2.0 found in the LICENSE-APACHE file in the root directory
+# of this source tree.
+
 omit_features = ["deprecated"]
diff --git a/shim/third-party/rust/fixups/clap_builder/fixups.toml b/shim/third-party/rust/fixups/clap_builder/fixups.toml
index edd9a2079bd..928a0682c46 100644
--- a/shim/third-party/rust/fixups/clap_builder/fixups.toml
+++ b/shim/third-party/rust/fixups/clap_builder/fixups.toml
@@ -1 +1,8 @@
+# Copyright (c) Meta Platforms, Inc. and affiliates.
+#
+# This source code is licensed under both the MIT license found in the
+# LICENSE-MIT file in the root directory of this source tree and the Apache
+# License, Version 2.0 found in the LICENSE-APACHE file in the root directory
+# of this source tree.
+
 extra_srcs = ["README.md"]
diff --git a/shim/third-party/rust/fixups/clap_derive/fixups.toml b/shim/third-party/rust/fixups/clap_derive/fixups.toml
index ee94fdc2f29..41256d384f5 100644
--- a/shim/third-party/rust/fixups/clap_derive/fixups.toml
+++ b/shim/third-party/rust/fixups/clap_derive/fixups.toml
@@ -1 +1,8 @@
+# Copyright (c) Meta Platforms, Inc. and affiliates.
+#
+# This source code is licensed under both the MIT license found in the
+# LICENSE-MIT file in the root directory of this source tree and the Apache
+# License, Version 2.0 found in the LICENSE-APACHE file in the root directory
+# of this source tree.
+
 omit_features = ["deprecated"]
diff --git a/shim/third-party/rust/fixups/core-foundation-sys/fixups.toml b/shim/third-party/rust/fixups/core-foundation-sys/fixups.toml
index db40d72cb2e..554cc0dae2b 100644
--- a/shim/third-party/rust/fixups/core-foundation-sys/fixups.toml
+++ b/shim/third-party/rust/fixups/core-foundation-sys/fixups.toml
@@ -1 +1,8 @@
+# Copyright (c) Meta Platforms, Inc. and affiliates.
+#
+# This source code is licensed under both the MIT license found in the
+# LICENSE-MIT file in the root directory of this source tree and the Apache
+# License, Version 2.0 found in the LICENSE-APACHE file in the root directory
+# of this source tree.
+
 buildscript = []
diff --git a/shim/third-party/rust/fixups/crc32fast/fixups.toml b/shim/third-party/rust/fixups/crc32fast/fixups.toml
index db40d72cb2e..554cc0dae2b 100644
--- a/shim/third-party/rust/fixups/crc32fast/fixups.toml
+++ b/shim/third-party/rust/fixups/crc32fast/fixups.toml
@@ -1 +1,8 @@
+# Copyright (c) Meta Platforms, Inc. and affiliates.
+#
+# This source code is licensed under both the MIT license found in the
+# LICENSE-MIT file in the root directory of this source tree and the Apache
+# License, Version 2.0 found in the LICENSE-APACHE file in the root directory
+# of this source tree.
+
 buildscript = []
diff --git a/shim/third-party/rust/fixups/criterion/fixups.toml b/shim/third-party/rust/fixups/criterion/fixups.toml
index 41439d3356a..1da45ba2314 100644
--- a/shim/third-party/rust/fixups/criterion/fixups.toml
+++ b/shim/third-party/rust/fixups/criterion/fixups.toml
@@ -1 +1,8 @@
+# Copyright (c) Meta Platforms, Inc. and affiliates.
+#
+# This source code is licensed under both the MIT license found in the
+# LICENSE-MIT file in the root directory of this source tree and the Apache
+# License, Version 2.0 found in the LICENSE-APACHE file in the root directory
+# of this source tree.
+
 cargo_env = true
diff --git a/shim/third-party/rust/fixups/crossbeam-epoch/fixups.toml b/shim/third-party/rust/fixups/crossbeam-epoch/fixups.toml
index 3510928422a..118f2693283 100644
--- a/shim/third-party/rust/fixups/crossbeam-epoch/fixups.toml
+++ b/shim/third-party/rust/fixups/crossbeam-epoch/fixups.toml
@@ -1,2 +1,9 @@
+# Copyright (c) Meta Platforms, Inc. and affiliates.
+#
+# This source code is licensed under both the MIT license found in the
+# LICENSE-MIT file in the root directory of this source tree and the Apache
+# License, Version 2.0 found in the LICENSE-APACHE file in the root directory
+# of this source tree.
+
 buildscript = []
 cargo_env = true
diff --git a/shim/third-party/rust/fixups/crossbeam-queue/fixups.toml b/shim/third-party/rust/fixups/crossbeam-queue/fixups.toml
index 3510928422a..118f2693283 100644
--- a/shim/third-party/rust/fixups/crossbeam-queue/fixups.toml
+++ b/shim/third-party/rust/fixups/crossbeam-queue/fixups.toml
@@ -1,2 +1,9 @@
+# Copyright (c) Meta Platforms, Inc. and affiliates.
+#
+# This source code is licensed under both the MIT license found in the
+# LICENSE-MIT file in the root directory of this source tree and the Apache
+# License, Version 2.0 found in the LICENSE-APACHE file in the root directory
+# of this source tree.
+
 buildscript = []
 cargo_env = true
diff --git a/shim/third-party/rust/fixups/crossbeam-utils/fixups.toml b/shim/third-party/rust/fixups/crossbeam-utils/fixups.toml
index 3510928422a..118f2693283 100644
--- a/shim/third-party/rust/fixups/crossbeam-utils/fixups.toml
+++ b/shim/third-party/rust/fixups/crossbeam-utils/fixups.toml
@@ -1,2 +1,9 @@
+# Copyright (c) Meta Platforms, Inc. and affiliates.
+#
+# This source code is licensed under both the MIT license found in the
+# LICENSE-MIT file in the root directory of this source tree and the Apache
+# License, Version 2.0 found in the LICENSE-APACHE file in the root directory
+# of this source tree.
+
 buildscript = []
 cargo_env = true
diff --git a/shim/third-party/rust/fixups/crunchy/fixups.toml b/shim/third-party/rust/fixups/crunchy/fixups.toml
index ac9ebfb4af7..309316ac454 100644
--- a/shim/third-party/rust/fixups/crunchy/fixups.toml
+++ b/shim/third-party/rust/fixups/crunchy/fixups.toml
@@ -1,2 +1,9 @@
+# Copyright (c) Meta Platforms, Inc. and affiliates.
+#
+# This source code is licensed under both the MIT license found in the
+# LICENSE-MIT file in the root directory of this source tree and the Apache
+# License, Version 2.0 found in the LICENSE-APACHE file in the root directory
+# of this source tree.
+
 [[buildscript]]
 [buildscript.gen_srcs]
diff --git a/shim/third-party/rust/fixups/darwin-libproc-sys/fixups.toml b/shim/third-party/rust/fixups/darwin-libproc-sys/fixups.toml
index db40d72cb2e..554cc0dae2b 100644
--- a/shim/third-party/rust/fixups/darwin-libproc-sys/fixups.toml
+++ b/shim/third-party/rust/fixups/darwin-libproc-sys/fixups.toml
@@ -1 +1,8 @@
+# Copyright (c) Meta Platforms, Inc. and affiliates.
+#
+# This source code is licensed under both the MIT license found in the
+# LICENSE-MIT file in the root directory of this source tree and the Apache
+# License, Version 2.0 found in the LICENSE-APACHE file in the root directory
+# of this source tree.
+
 buildscript = []
diff --git a/shim/third-party/rust/fixups/debugserver-types/fixups.toml b/shim/third-party/rust/fixups/debugserver-types/fixups.toml
index 50645274fe7..c740f1218e2 100644
--- a/shim/third-party/rust/fixups/debugserver-types/fixups.toml
+++ b/shim/third-party/rust/fixups/debugserver-types/fixups.toml
@@ -1,2 +1,9 @@
+# Copyright (c) Meta Platforms, Inc. and affiliates.
+#
+# This source code is licensed under both the MIT license found in the
+# LICENSE-MIT file in the root directory of this source tree and the Apache
+# License, Version 2.0 found in the LICENSE-APACHE file in the root directory
+# of this source tree.
+
 extra_srcs = ["src/schema.json"]
 cargo_env = true
diff --git a/shim/third-party/rust/fixups/derive_more-impl/fixups.toml b/shim/third-party/rust/fixups/derive_more-impl/fixups.toml
index 2b26bb6745c..190a6c25c44 100644
--- a/shim/third-party/rust/fixups/derive_more-impl/fixups.toml
+++ b/shim/third-party/rust/fixups/derive_more-impl/fixups.toml
@@ -1 +1,8 @@
+# Copyright (c) Meta Platforms, Inc. and affiliates.
+#
+# This source code is licensed under both the MIT license found in the
+# LICENSE-MIT file in the root directory of this source tree and the Apache
+# License, Version 2.0 found in the LICENSE-APACHE file in the root directory
+# of this source tree.
+
 extra_srcs = ["README.md", "doc/*.md"]
diff --git a/shim/third-party/rust/fixups/derive_more/fixups.toml b/shim/third-party/rust/fixups/derive_more/fixups.toml
index edd9a2079bd..928a0682c46 100644
--- a/shim/third-party/rust/fixups/derive_more/fixups.toml
+++ b/shim/third-party/rust/fixups/derive_more/fixups.toml
@@ -1 +1,8 @@
+# Copyright (c) Meta Platforms, Inc. and affiliates.
+#
+# This source code is licensed under both the MIT license found in the
+# LICENSE-MIT file in the root directory of this source tree and the Apache
+# License, Version 2.0 found in the LICENSE-APACHE file in the root directory
+# of this source tree.
+
 extra_srcs = ["README.md"]
diff --git a/shim/third-party/rust/fixups/erased-serde/fixups.toml b/shim/third-party/rust/fixups/erased-serde/fixups.toml
index db40d72cb2e..554cc0dae2b 100644
--- a/shim/third-party/rust/fixups/erased-serde/fixups.toml
+++ b/shim/third-party/rust/fixups/erased-serde/fixups.toml
@@ -1 +1,8 @@
+# Copyright (c) Meta Platforms, Inc. and affiliates.
+#
+# This source code is licensed under both the MIT license found in the
+# LICENSE-MIT file in the root directory of this source tree and the Apache
+# License, Version 2.0 found in the LICENSE-APACHE file in the root directory
+# of this source tree.
+
 buildscript = []
diff --git a/shim/third-party/rust/fixups/fs-err/fixups.toml b/shim/third-party/rust/fixups/fs-err/fixups.toml
index 5e026f75e0d..d514599437f 100644
--- a/shim/third-party/rust/fixups/fs-err/fixups.toml
+++ b/shim/third-party/rust/fixups/fs-err/fixups.toml
@@ -1,2 +1,9 @@
+# Copyright (c) Meta Platforms, Inc. and affiliates.
+#
+# This source code is licensed under both the MIT license found in the
+# LICENSE-MIT file in the root directory of this source tree and the Apache
+# License, Version 2.0 found in the LICENSE-APACHE file in the root directory
+# of this source tree.
+
 [[buildscript]]
 [buildscript.rustc_flags]
diff --git a/shim/third-party/rust/fixups/fs4/fixups.toml b/shim/third-party/rust/fixups/fs4/fixups.toml
index af7edb27e3b..9b40a18f4ca 100644
--- a/shim/third-party/rust/fixups/fs4/fixups.toml
+++ b/shim/third-party/rust/fixups/fs4/fixups.toml
@@ -1 +1,8 @@
+# Copyright (c) Meta Platforms, Inc. and affiliates.
+#
+# This source code is licensed under both the MIT license found in the
+# LICENSE-MIT file in the root directory of this source tree and the Apache
+# License, Version 2.0 found in the LICENSE-APACHE file in the root directory
+# of this source tree.
+
 extra_srcs = ["src/**/*.rs"]
diff --git a/shim/third-party/rust/fixups/futures-channel/fixups.toml b/shim/third-party/rust/fixups/futures-channel/fixups.toml
index 3510928422a..118f2693283 100644
--- a/shim/third-party/rust/fixups/futures-channel/fixups.toml
+++ b/shim/third-party/rust/fixups/futures-channel/fixups.toml
@@ -1,2 +1,9 @@
+# Copyright (c) Meta Platforms, Inc. and affiliates.
+#
+# This source code is licensed under both the MIT license found in the
+# LICENSE-MIT file in the root directory of this source tree and the Apache
+# License, Version 2.0 found in the LICENSE-APACHE file in the root directory
+# of this source tree.
+
 buildscript = []
 cargo_env = true
diff --git a/shim/third-party/rust/fixups/futures-core/fixups.toml b/shim/third-party/rust/fixups/futures-core/fixups.toml
index 3510928422a..118f2693283 100644
--- a/shim/third-party/rust/fixups/futures-core/fixups.toml
+++ b/shim/third-party/rust/fixups/futures-core/fixups.toml
@@ -1,2 +1,9 @@
+# Copyright (c) Meta Platforms, Inc. and affiliates.
+#
+# This source code is licensed under both the MIT license found in the
+# LICENSE-MIT file in the root directory of this source tree and the Apache
+# License, Version 2.0 found in the LICENSE-APACHE file in the root directory
+# of this source tree.
+
 buildscript = []
 cargo_env = true
diff --git a/shim/third-party/rust/fixups/futures-task/fixups.toml b/shim/third-party/rust/fixups/futures-task/fixups.toml
index 3510928422a..118f2693283 100644
--- a/shim/third-party/rust/fixups/futures-task/fixups.toml
+++ b/shim/third-party/rust/fixups/futures-task/fixups.toml
@@ -1,2 +1,9 @@
+# Copyright (c) Meta Platforms, Inc. and affiliates.
+#
+# This source code is licensed under both the MIT license found in the
+# LICENSE-MIT file in the root directory of this source tree and the Apache
+# License, Version 2.0 found in the LICENSE-APACHE file in the root directory
+# of this source tree.
+
 buildscript = []
 cargo_env = true
diff --git a/shim/third-party/rust/fixups/futures-util/fixups.toml b/shim/third-party/rust/fixups/futures-util/fixups.toml
index 3510928422a..118f2693283 100644
--- a/shim/third-party/rust/fixups/futures-util/fixups.toml
+++ b/shim/third-party/rust/fixups/futures-util/fixups.toml
@@ -1,2 +1,9 @@
+# Copyright (c) Meta Platforms, Inc. and affiliates.
+#
+# This source code is licensed under both the MIT license found in the
+# LICENSE-MIT file in the root directory of this source tree and the Apache
+# License, Version 2.0 found in the LICENSE-APACHE file in the root directory
+# of this source tree.
+
 buildscript = []
 cargo_env = true
diff --git a/shim/third-party/rust/fixups/generic-array/fixups.toml b/shim/third-party/rust/fixups/generic-array/fixups.toml
index db40d72cb2e..554cc0dae2b 100644
--- a/shim/third-party/rust/fixups/generic-array/fixups.toml
+++ b/shim/third-party/rust/fixups/generic-array/fixups.toml
@@ -1 +1,8 @@
+# Copyright (c) Meta Platforms, Inc. and affiliates.
+#
+# This source code is licensed under both the MIT license found in the
+# LICENSE-MIT file in the root directory of this source tree and the Apache
+# License, Version 2.0 found in the LICENSE-APACHE file in the root directory
+# of this source tree.
+
 buildscript = []
diff --git a/shim/third-party/rust/fixups/getrandom/fixups.toml b/shim/third-party/rust/fixups/getrandom/fixups.toml
index db40d72cb2e..554cc0dae2b 100644
--- a/shim/third-party/rust/fixups/getrandom/fixups.toml
+++ b/shim/third-party/rust/fixups/getrandom/fixups.toml
@@ -1 +1,8 @@
+# Copyright (c) Meta Platforms, Inc. and affiliates.
+#
+# This source code is licensed under both the MIT license found in the
+# LICENSE-MIT file in the root directory of this source tree and the Apache
+# License, Version 2.0 found in the LICENSE-APACHE file in the root directory
+# of this source tree.
+
 buildscript = []
diff --git a/shim/third-party/rust/fixups/httparse/fixups.toml b/shim/third-party/rust/fixups/httparse/fixups.toml
index db40d72cb2e..554cc0dae2b 100644
--- a/shim/third-party/rust/fixups/httparse/fixups.toml
+++ b/shim/third-party/rust/fixups/httparse/fixups.toml
@@ -1 +1,8 @@
+# Copyright (c) Meta Platforms, Inc. and affiliates.
+#
+# This source code is licensed under both the MIT license found in the
+# LICENSE-MIT file in the root directory of this source tree and the Apache
+# License, Version 2.0 found in the LICENSE-APACHE file in the root directory
+# of this source tree.
+
 buildscript = []
diff --git a/shim/third-party/rust/fixups/hyper/fixups.toml b/shim/third-party/rust/fixups/hyper/fixups.toml
index 9118e9de767..4dc9cd11669 100644
--- a/shim/third-party/rust/fixups/hyper/fixups.toml
+++ b/shim/third-party/rust/fixups/hyper/fixups.toml
@@ -1,3 +1,10 @@
+# Copyright (c) Meta Platforms, Inc. and affiliates.
+#
+# This source code is licensed under both the MIT license found in the
+# LICENSE-MIT file in the root directory of this source tree and the Apache
+# License, Version 2.0 found in the LICENSE-APACHE file in the root directory
+# of this source tree.
+
 # reindeer cannot see through `cfg_proto!` macros and the like
 extra_srcs = ["src/**/*.rs"]
 
diff --git a/shim/third-party/rust/fixups/indexmap/fixups.toml b/shim/third-party/rust/fixups/indexmap/fixups.toml
index 4aa45eda12c..40887268818 100644
--- a/shim/third-party/rust/fixups/indexmap/fixups.toml
+++ b/shim/third-party/rust/fixups/indexmap/fixups.toml
@@ -1,2 +1,9 @@
+# Copyright (c) Meta Platforms, Inc. and affiliates.
+#
+# This source code is licensed under both the MIT license found in the
+# LICENSE-MIT file in the root directory of this source tree and the Apache
+# License, Version 2.0 found in the LICENSE-APACHE file in the root directory
+# of this source tree.
+
 buildscript = []
 cfgs = ["has_std"]
diff --git a/shim/third-party/rust/fixups/io-lifetimes/fixups.toml b/shim/third-party/rust/fixups/io-lifetimes/fixups.toml
index db40d72cb2e..554cc0dae2b 100644
--- a/shim/third-party/rust/fixups/io-lifetimes/fixups.toml
+++ b/shim/third-party/rust/fixups/io-lifetimes/fixups.toml
@@ -1 +1,8 @@
+# Copyright (c) Meta Platforms, Inc. and affiliates.
+#
+# This source code is licensed under both the MIT license found in the
+# LICENSE-MIT file in the root directory of this source tree and the Apache
+# License, Version 2.0 found in the LICENSE-APACHE file in the root directory
+# of this source tree.
+
 buildscript = []
diff --git a/shim/third-party/rust/fixups/jemalloc-sys/fixups.toml b/shim/third-party/rust/fixups/jemalloc-sys/fixups.toml
index db40d72cb2e..554cc0dae2b 100644
--- a/shim/third-party/rust/fixups/jemalloc-sys/fixups.toml
+++ b/shim/third-party/rust/fixups/jemalloc-sys/fixups.toml
@@ -1 +1,8 @@
+# Copyright (c) Meta Platforms, Inc. and affiliates.
+#
+# This source code is licensed under both the MIT license found in the
+# LICENSE-MIT file in the root directory of this source tree and the Apache
+# License, Version 2.0 found in the LICENSE-APACHE file in the root directory
+# of this source tree.
+
 buildscript = []
diff --git a/shim/third-party/rust/fixups/lalrpop/fixups.toml b/shim/third-party/rust/fixups/lalrpop/fixups.toml
index 41439d3356a..1da45ba2314 100644
--- a/shim/third-party/rust/fixups/lalrpop/fixups.toml
+++ b/shim/third-party/rust/fixups/lalrpop/fixups.toml
@@ -1 +1,8 @@
+# Copyright (c) Meta Platforms, Inc. and affiliates.
+#
+# This source code is licensed under both the MIT license found in the
+# LICENSE-MIT file in the root directory of this source tree and the Apache
+# License, Version 2.0 found in the LICENSE-APACHE file in the root directory
+# of this source tree.
+
 cargo_env = true
diff --git a/shim/third-party/rust/fixups/lexical-core/fixups.toml b/shim/third-party/rust/fixups/lexical-core/fixups.toml
index 5e026f75e0d..d514599437f 100644
--- a/shim/third-party/rust/fixups/lexical-core/fixups.toml
+++ b/shim/third-party/rust/fixups/lexical-core/fixups.toml
@@ -1,2 +1,9 @@
+# Copyright (c) Meta Platforms, Inc. and affiliates.
+#
+# This source code is licensed under both the MIT license found in the
+# LICENSE-MIT file in the root directory of this source tree and the Apache
+# License, Version 2.0 found in the LICENSE-APACHE file in the root directory
+# of this source tree.
+
 [[buildscript]]
 [buildscript.rustc_flags]
diff --git a/shim/third-party/rust/fixups/libc/fixups.toml b/shim/third-party/rust/fixups/libc/fixups.toml
index 5e026f75e0d..d514599437f 100644
--- a/shim/third-party/rust/fixups/libc/fixups.toml
+++ b/shim/third-party/rust/fixups/libc/fixups.toml
@@ -1,2 +1,9 @@
+# Copyright (c) Meta Platforms, Inc. and affiliates.
+#
+# This source code is licensed under both the MIT license found in the
+# LICENSE-MIT file in the root directory of this source tree and the Apache
+# License, Version 2.0 found in the LICENSE-APACHE file in the root directory
+# of this source tree.
+
 [[buildscript]]
 [buildscript.rustc_flags]
diff --git a/shim/third-party/rust/fixups/libm/fixups.toml b/shim/third-party/rust/fixups/libm/fixups.toml
index db40d72cb2e..554cc0dae2b 100644
--- a/shim/third-party/rust/fixups/libm/fixups.toml
+++ b/shim/third-party/rust/fixups/libm/fixups.toml
@@ -1 +1,8 @@
+# Copyright (c) Meta Platforms, Inc. and affiliates.
+#
+# This source code is licensed under both the MIT license found in the
+# LICENSE-MIT file in the root directory of this source tree and the Apache
+# License, Version 2.0 found in the LICENSE-APACHE file in the root directory
+# of this source tree.
+
 buildscript = []
diff --git a/shim/third-party/rust/fixups/libsqlite3-sys/BUCK b/shim/third-party/rust/fixups/libsqlite3-sys/BUCK
index de78a99d5a5..938b0a56d09 100644
--- a/shim/third-party/rust/fixups/libsqlite3-sys/BUCK
+++ b/shim/third-party/rust/fixups/libsqlite3-sys/BUCK
@@ -1,3 +1,10 @@
+# Copyright (c) Meta Platforms, Inc. and affiliates.
+#
+# This source code is licensed under both the MIT license found in the
+# LICENSE-MIT file in the root directory of this source tree and the Apache
+# License, Version 2.0 found in the LICENSE-APACHE file in the root directory
+# of this source tree.
+
 filegroup(
     name = "out_dir",
     srcs = ["bindgen.rs"],
diff --git a/shim/third-party/rust/fixups/libsqlite3-sys/fixups.toml b/shim/third-party/rust/fixups/libsqlite3-sys/fixups.toml
index 240a5c89c3f..139464b1cab 100644
--- a/shim/third-party/rust/fixups/libsqlite3-sys/fixups.toml
+++ b/shim/third-party/rust/fixups/libsqlite3-sys/fixups.toml
@@ -1,3 +1,10 @@
+# Copyright (c) Meta Platforms, Inc. and affiliates.
+#
+# This source code is licensed under both the MIT license found in the
+# LICENSE-MIT file in the root directory of this source tree and the Apache
+# License, Version 2.0 found in the LICENSE-APACHE file in the root directory
+# of this source tree.
+
 # libsqlite3-sys uses a bindgen binding to libsqlite.
 # We can't easily import bindgen because of its libclang dependency,
 # so in the meantime we need to use pre-generated bindgen files.
diff --git a/shim/third-party/rust/fixups/lock_api/fixups.toml b/shim/third-party/rust/fixups/lock_api/fixups.toml
index 6c1a3d45a5a..4d082640b58 100644
--- a/shim/third-party/rust/fixups/lock_api/fixups.toml
+++ b/shim/third-party/rust/fixups/lock_api/fixups.toml
@@ -1,3 +1,10 @@
+# Copyright (c) Meta Platforms, Inc. and affiliates.
+#
+# This source code is licensed under both the MIT license found in the
+# LICENSE-MIT file in the root directory of this source tree and the Apache
+# License, Version 2.0 found in the LICENSE-APACHE file in the root directory
+# of this source tree.
+
 # the build script for lock_api is a version check for rust 1.61.
 [[buildscript]]
 [buildscript.rustc_flags]
diff --git a/shim/third-party/rust/fixups/log/fixups.toml b/shim/third-party/rust/fixups/log/fixups.toml
index 5e026f75e0d..d514599437f 100644
--- a/shim/third-party/rust/fixups/log/fixups.toml
+++ b/shim/third-party/rust/fixups/log/fixups.toml
@@ -1,2 +1,9 @@
+# Copyright (c) Meta Platforms, Inc. and affiliates.
+#
+# This source code is licensed under both the MIT license found in the
+# LICENSE-MIT file in the root directory of this source tree and the Apache
+# License, Version 2.0 found in the LICENSE-APACHE file in the root directory
+# of this source tree.
+
 [[buildscript]]
 [buildscript.rustc_flags]
diff --git a/shim/third-party/rust/fixups/memchr/fixups.toml b/shim/third-party/rust/fixups/memchr/fixups.toml
index db40d72cb2e..554cc0dae2b 100644
--- a/shim/third-party/rust/fixups/memchr/fixups.toml
+++ b/shim/third-party/rust/fixups/memchr/fixups.toml
@@ -1 +1,8 @@
+# Copyright (c) Meta Platforms, Inc. and affiliates.
+#
+# This source code is licensed under both the MIT license found in the
+# LICENSE-MIT file in the root directory of this source tree and the Apache
+# License, Version 2.0 found in the LICENSE-APACHE file in the root directory
+# of this source tree.
+
 buildscript = []
diff --git a/shim/third-party/rust/fixups/memoffset/fixups.toml b/shim/third-party/rust/fixups/memoffset/fixups.toml
index db40d72cb2e..554cc0dae2b 100644
--- a/shim/third-party/rust/fixups/memoffset/fixups.toml
+++ b/shim/third-party/rust/fixups/memoffset/fixups.toml
@@ -1 +1,8 @@
+# Copyright (c) Meta Platforms, Inc. and affiliates.
+#
+# This source code is licensed under both the MIT license found in the
+# LICENSE-MIT file in the root directory of this source tree and the Apache
+# License, Version 2.0 found in the LICENSE-APACHE file in the root directory
+# of this source tree.
+
 buildscript = []
diff --git a/shim/third-party/rust/fixups/mio/fixups.toml b/shim/third-party/rust/fixups/mio/fixups.toml
index af7edb27e3b..9b40a18f4ca 100644
--- a/shim/third-party/rust/fixups/mio/fixups.toml
+++ b/shim/third-party/rust/fixups/mio/fixups.toml
@@ -1 +1,8 @@
+# Copyright (c) Meta Platforms, Inc. and affiliates.
+#
+# This source code is licensed under both the MIT license found in the
+# LICENSE-MIT file in the root directory of this source tree and the Apache
+# License, Version 2.0 found in the LICENSE-APACHE file in the root directory
+# of this source tree.
+
 extra_srcs = ["src/**/*.rs"]
diff --git a/shim/third-party/rust/fixups/native-tls/fixups.toml b/shim/third-party/rust/fixups/native-tls/fixups.toml
index db40d72cb2e..554cc0dae2b 100644
--- a/shim/third-party/rust/fixups/native-tls/fixups.toml
+++ b/shim/third-party/rust/fixups/native-tls/fixups.toml
@@ -1 +1,8 @@
+# Copyright (c) Meta Platforms, Inc. and affiliates.
+#
+# This source code is licensed under both the MIT license found in the
+# LICENSE-MIT file in the root directory of this source tree and the Apache
+# License, Version 2.0 found in the LICENSE-APACHE file in the root directory
+# of this source tree.
+
 buildscript = []
diff --git a/shim/third-party/rust/fixups/nix/fixups.toml b/shim/third-party/rust/fixups/nix/fixups.toml
index 1849ea069d2..c269a19b413 100644
--- a/shim/third-party/rust/fixups/nix/fixups.toml
+++ b/shim/third-party/rust/fixups/nix/fixups.toml
@@ -1,2 +1,9 @@
+# Copyright (c) Meta Platforms, Inc. and affiliates.
+#
+# This source code is licensed under both the MIT license found in the
+# LICENSE-MIT file in the root directory of this source tree and the Apache
+# License, Version 2.0 found in the LICENSE-APACHE file in the root directory
+# of this source tree.
+
 buildscript = []
 extra_srcs = ["src/**/*.rs"]
diff --git a/shim/third-party/rust/fixups/nom/fixups.toml b/shim/third-party/rust/fixups/nom/fixups.toml
index db40d72cb2e..554cc0dae2b 100644
--- a/shim/third-party/rust/fixups/nom/fixups.toml
+++ b/shim/third-party/rust/fixups/nom/fixups.toml
@@ -1 +1,8 @@
+# Copyright (c) Meta Platforms, Inc. and affiliates.
+#
+# This source code is licensed under both the MIT license found in the
+# LICENSE-MIT file in the root directory of this source tree and the Apache
+# License, Version 2.0 found in the LICENSE-APACHE file in the root directory
+# of this source tree.
+
 buildscript = []
diff --git a/shim/third-party/rust/fixups/ntapi/fixups.toml b/shim/third-party/rust/fixups/ntapi/fixups.toml
index db40d72cb2e..554cc0dae2b 100644
--- a/shim/third-party/rust/fixups/ntapi/fixups.toml
+++ b/shim/third-party/rust/fixups/ntapi/fixups.toml
@@ -1 +1,8 @@
+# Copyright (c) Meta Platforms, Inc. and affiliates.
+#
+# This source code is licensed under both the MIT license found in the
+# LICENSE-MIT file in the root directory of this source tree and the Apache
+# License, Version 2.0 found in the LICENSE-APACHE file in the root directory
+# of this source tree.
+
 buildscript = []
diff --git a/shim/third-party/rust/fixups/num-bigint/fixups.toml b/shim/third-party/rust/fixups/num-bigint/fixups.toml
index df0b424f497..55e01177fd8 100644
--- a/shim/third-party/rust/fixups/num-bigint/fixups.toml
+++ b/shim/third-party/rust/fixups/num-bigint/fixups.toml
@@ -1,3 +1,10 @@
+# Copyright (c) Meta Platforms, Inc. and affiliates.
+#
+# This source code is licensed under both the MIT license found in the
+# LICENSE-MIT file in the root directory of this source tree and the Apache
+# License, Version 2.0 found in the LICENSE-APACHE file in the root directory
+# of this source tree.
+
 [[buildscript]]
 [buildscript.rustc_flags]
 
diff --git a/shim/third-party/rust/fixups/num-integer/fixups.toml b/shim/third-party/rust/fixups/num-integer/fixups.toml
index 5e026f75e0d..d514599437f 100644
--- a/shim/third-party/rust/fixups/num-integer/fixups.toml
+++ b/shim/third-party/rust/fixups/num-integer/fixups.toml
@@ -1,2 +1,9 @@
+# Copyright (c) Meta Platforms, Inc. and affiliates.
+#
+# This source code is licensed under both the MIT license found in the
+# LICENSE-MIT file in the root directory of this source tree and the Apache
+# License, Version 2.0 found in the LICENSE-APACHE file in the root directory
+# of this source tree.
+
 [[buildscript]]
 [buildscript.rustc_flags]
diff --git a/shim/third-party/rust/fixups/num-traits/fixups.toml b/shim/third-party/rust/fixups/num-traits/fixups.toml
index 5e026f75e0d..d514599437f 100644
--- a/shim/third-party/rust/fixups/num-traits/fixups.toml
+++ b/shim/third-party/rust/fixups/num-traits/fixups.toml
@@ -1,2 +1,9 @@
+# Copyright (c) Meta Platforms, Inc. and affiliates.
+#
+# This source code is licensed under both the MIT license found in the
+# LICENSE-MIT file in the root directory of this source tree and the Apache
+# License, Version 2.0 found in the LICENSE-APACHE file in the root directory
+# of this source tree.
+
 [[buildscript]]
 [buildscript.rustc_flags]
diff --git a/shim/third-party/rust/fixups/oid-registry/fixups.toml b/shim/third-party/rust/fixups/oid-registry/fixups.toml
index 79d5cb979d1..45a72665bb1 100644
--- a/shim/third-party/rust/fixups/oid-registry/fixups.toml
+++ b/shim/third-party/rust/fixups/oid-registry/fixups.toml
@@ -1,3 +1,10 @@
+# Copyright (c) Meta Platforms, Inc. and affiliates.
+#
+# This source code is licensed under both the MIT license found in the
+# LICENSE-MIT file in the root directory of this source tree and the Apache
+# License, Version 2.0 found in the LICENSE-APACHE file in the root directory
+# of this source tree.
+
 cargo_env = [
     "CARGO_PKG_NAME", # Needed by _buck1_handle_manifest_dir
     "CARGO_MANIFEST_DIR",
diff --git a/shim/third-party/rust/fixups/parking_lot/fixups.toml b/shim/third-party/rust/fixups/parking_lot/fixups.toml
index 5e026f75e0d..d514599437f 100644
--- a/shim/third-party/rust/fixups/parking_lot/fixups.toml
+++ b/shim/third-party/rust/fixups/parking_lot/fixups.toml
@@ -1,2 +1,9 @@
+# Copyright (c) Meta Platforms, Inc. and affiliates.
+#
+# This source code is licensed under both the MIT license found in the
+# LICENSE-MIT file in the root directory of this source tree and the Apache
+# License, Version 2.0 found in the LICENSE-APACHE file in the root directory
+# of this source tree.
+
 [[buildscript]]
 [buildscript.rustc_flags]
diff --git a/shim/third-party/rust/fixups/parking_lot_core/fixups.toml b/shim/third-party/rust/fixups/parking_lot_core/fixups.toml
index 5e026f75e0d..d514599437f 100644
--- a/shim/third-party/rust/fixups/parking_lot_core/fixups.toml
+++ b/shim/third-party/rust/fixups/parking_lot_core/fixups.toml
@@ -1,2 +1,9 @@
+# Copyright (c) Meta Platforms, Inc. and affiliates.
+#
+# This source code is licensed under both the MIT license found in the
+# LICENSE-MIT file in the root directory of this source tree and the Apache
+# License, Version 2.0 found in the LICENSE-APACHE file in the root directory
+# of this source tree.
+
 [[buildscript]]
 [buildscript.rustc_flags]
diff --git a/shim/third-party/rust/fixups/paste/fixups.toml b/shim/third-party/rust/fixups/paste/fixups.toml
index db40d72cb2e..554cc0dae2b 100644
--- a/shim/third-party/rust/fixups/paste/fixups.toml
+++ b/shim/third-party/rust/fixups/paste/fixups.toml
@@ -1 +1,8 @@
+# Copyright (c) Meta Platforms, Inc. and affiliates.
+#
+# This source code is licensed under both the MIT license found in the
+# LICENSE-MIT file in the root directory of this source tree and the Apache
+# License, Version 2.0 found in the LICENSE-APACHE file in the root directory
+# of this source tree.
+
 buildscript = []
diff --git a/shim/third-party/rust/fixups/pest/fixups.toml b/shim/third-party/rust/fixups/pest/fixups.toml
index af7edb27e3b..9b40a18f4ca 100644
--- a/shim/third-party/rust/fixups/pest/fixups.toml
+++ b/shim/third-party/rust/fixups/pest/fixups.toml
@@ -1 +1,8 @@
+# Copyright (c) Meta Platforms, Inc. and affiliates.
+#
+# This source code is licensed under both the MIT license found in the
+# LICENSE-MIT file in the root directory of this source tree and the Apache
+# License, Version 2.0 found in the LICENSE-APACHE file in the root directory
+# of this source tree.
+
 extra_srcs = ["src/**/*.rs"]
diff --git a/shim/third-party/rust/fixups/pin-project-internal/fixups.toml b/shim/third-party/rust/fixups/pin-project-internal/fixups.toml
index db40d72cb2e..554cc0dae2b 100644
--- a/shim/third-party/rust/fixups/pin-project-internal/fixups.toml
+++ b/shim/third-party/rust/fixups/pin-project-internal/fixups.toml
@@ -1 +1,8 @@
+# Copyright (c) Meta Platforms, Inc. and affiliates.
+#
+# This source code is licensed under both the MIT license found in the
+# LICENSE-MIT file in the root directory of this source tree and the Apache
+# License, Version 2.0 found in the LICENSE-APACHE file in the root directory
+# of this source tree.
+
 buildscript = []
diff --git a/shim/third-party/rust/fixups/platforms/fixups.toml b/shim/third-party/rust/fixups/platforms/fixups.toml
index e086791cd2f..beb28c09906 100644
--- a/shim/third-party/rust/fixups/platforms/fixups.toml
+++ b/shim/third-party/rust/fixups/platforms/fixups.toml
@@ -1,3 +1,10 @@
+# Copyright (c) Meta Platforms, Inc. and affiliates.
+#
+# This source code is licensed under both the MIT license found in the
+# LICENSE-MIT file in the root directory of this source tree and the Apache
+# License, Version 2.0 found in the LICENSE-APACHE file in the root directory
+# of this source tree.
+
 # Buildscript sets TARGET in environment
 buildscript = []
 
diff --git a/shim/third-party/rust/fixups/prettyplease/fixups.toml b/shim/third-party/rust/fixups/prettyplease/fixups.toml
index 3510928422a..118f2693283 100644
--- a/shim/third-party/rust/fixups/prettyplease/fixups.toml
+++ b/shim/third-party/rust/fixups/prettyplease/fixups.toml
@@ -1,2 +1,9 @@
+# Copyright (c) Meta Platforms, Inc. and affiliates.
+#
+# This source code is licensed under both the MIT license found in the
+# LICENSE-MIT file in the root directory of this source tree and the Apache
+# License, Version 2.0 found in the LICENSE-APACHE file in the root directory
+# of this source tree.
+
 buildscript = []
 cargo_env = true
diff --git a/shim/third-party/rust/fixups/proc-macro-error-attr/fixups.toml b/shim/third-party/rust/fixups/proc-macro-error-attr/fixups.toml
index db40d72cb2e..554cc0dae2b 100644
--- a/shim/third-party/rust/fixups/proc-macro-error-attr/fixups.toml
+++ b/shim/third-party/rust/fixups/proc-macro-error-attr/fixups.toml
@@ -1 +1,8 @@
+# Copyright (c) Meta Platforms, Inc. and affiliates.
+#
+# This source code is licensed under both the MIT license found in the
+# LICENSE-MIT file in the root directory of this source tree and the Apache
+# License, Version 2.0 found in the LICENSE-APACHE file in the root directory
+# of this source tree.
+
 buildscript = []
diff --git a/shim/third-party/rust/fixups/proc-macro-error/fixups.toml b/shim/third-party/rust/fixups/proc-macro-error/fixups.toml
index db40d72cb2e..554cc0dae2b 100644
--- a/shim/third-party/rust/fixups/proc-macro-error/fixups.toml
+++ b/shim/third-party/rust/fixups/proc-macro-error/fixups.toml
@@ -1 +1,8 @@
+# Copyright (c) Meta Platforms, Inc. and affiliates.
+#
+# This source code is licensed under both the MIT license found in the
+# LICENSE-MIT file in the root directory of this source tree and the Apache
+# License, Version 2.0 found in the LICENSE-APACHE file in the root directory
+# of this source tree.
+
 buildscript = []
diff --git a/shim/third-party/rust/fixups/proc-macro-hack/fixups.toml b/shim/third-party/rust/fixups/proc-macro-hack/fixups.toml
index db40d72cb2e..554cc0dae2b 100644
--- a/shim/third-party/rust/fixups/proc-macro-hack/fixups.toml
+++ b/shim/third-party/rust/fixups/proc-macro-hack/fixups.toml
@@ -1 +1,8 @@
+# Copyright (c) Meta Platforms, Inc. and affiliates.
+#
+# This source code is licensed under both the MIT license found in the
+# LICENSE-MIT file in the root directory of this source tree and the Apache
+# License, Version 2.0 found in the LICENSE-APACHE file in the root directory
+# of this source tree.
+
 buildscript = []
diff --git a/shim/third-party/rust/fixups/proc-macro2/fixups.toml b/shim/third-party/rust/fixups/proc-macro2/fixups.toml
index 5e026f75e0d..d514599437f 100644
--- a/shim/third-party/rust/fixups/proc-macro2/fixups.toml
+++ b/shim/third-party/rust/fixups/proc-macro2/fixups.toml
@@ -1,2 +1,9 @@
+# Copyright (c) Meta Platforms, Inc. and affiliates.
+#
+# This source code is licensed under both the MIT license found in the
+# LICENSE-MIT file in the root directory of this source tree and the Apache
+# License, Version 2.0 found in the LICENSE-APACHE file in the root directory
+# of this source tree.
+
 [[buildscript]]
 [buildscript.rustc_flags]
diff --git a/shim/third-party/rust/fixups/prost-build/fixups.toml b/shim/third-party/rust/fixups/prost-build/fixups.toml
index 5865e690484..61a5cb67428 100644
--- a/shim/third-party/rust/fixups/prost-build/fixups.toml
+++ b/shim/third-party/rust/fixups/prost-build/fixups.toml
@@ -1,3 +1,10 @@
+# Copyright (c) Meta Platforms, Inc. and affiliates.
+#
+# This source code is licensed under both the MIT license found in the
+# LICENSE-MIT file in the root directory of this source tree and the Apache
+# License, Version 2.0 found in the LICENSE-APACHE file in the root directory
+# of this source tree.
+
 buildscript = []
 
 # These are here because the crate uses the env! macro
diff --git a/shim/third-party/rust/fixups/pulldown-cmark/fixups.toml b/shim/third-party/rust/fixups/pulldown-cmark/fixups.toml
index db40d72cb2e..554cc0dae2b 100644
--- a/shim/third-party/rust/fixups/pulldown-cmark/fixups.toml
+++ b/shim/third-party/rust/fixups/pulldown-cmark/fixups.toml
@@ -1 +1,8 @@
+# Copyright (c) Meta Platforms, Inc. and affiliates.
+#
+# This source code is licensed under both the MIT license found in the
+# LICENSE-MIT file in the root directory of this source tree and the Apache
+# License, Version 2.0 found in the LICENSE-APACHE file in the root directory
+# of this source tree.
+
 buildscript = []
diff --git a/shim/third-party/rust/fixups/quote/fixups.toml b/shim/third-party/rust/fixups/quote/fixups.toml
index db40d72cb2e..554cc0dae2b 100644
--- a/shim/third-party/rust/fixups/quote/fixups.toml
+++ b/shim/third-party/rust/fixups/quote/fixups.toml
@@ -1 +1,8 @@
+# Copyright (c) Meta Platforms, Inc. and affiliates.
+#
+# This source code is licensed under both the MIT license found in the
+# LICENSE-MIT file in the root directory of this source tree and the Apache
+# License, Version 2.0 found in the LICENSE-APACHE file in the root directory
+# of this source tree.
+
 buildscript = []
diff --git a/shim/third-party/rust/fixups/radium/fixups.toml b/shim/third-party/rust/fixups/radium/fixups.toml
index db40d72cb2e..554cc0dae2b 100644
--- a/shim/third-party/rust/fixups/radium/fixups.toml
+++ b/shim/third-party/rust/fixups/radium/fixups.toml
@@ -1 +1,8 @@
+# Copyright (c) Meta Platforms, Inc. and affiliates.
+#
+# This source code is licensed under both the MIT license found in the
+# LICENSE-MIT file in the root directory of this source tree and the Apache
+# License, Version 2.0 found in the LICENSE-APACHE file in the root directory
+# of this source tree.
+
 buildscript = []
diff --git a/shim/third-party/rust/fixups/rayon-core/fixups.toml b/shim/third-party/rust/fixups/rayon-core/fixups.toml
index db40d72cb2e..554cc0dae2b 100644
--- a/shim/third-party/rust/fixups/rayon-core/fixups.toml
+++ b/shim/third-party/rust/fixups/rayon-core/fixups.toml
@@ -1 +1,8 @@
+# Copyright (c) Meta Platforms, Inc. and affiliates.
+#
+# This source code is licensed under both the MIT license found in the
+# LICENSE-MIT file in the root directory of this source tree and the Apache
+# License, Version 2.0 found in the LICENSE-APACHE file in the root directory
+# of this source tree.
+
 buildscript = []
diff --git a/shim/third-party/rust/fixups/ref-cast/fixups.toml b/shim/third-party/rust/fixups/ref-cast/fixups.toml
index db40d72cb2e..554cc0dae2b 100644
--- a/shim/third-party/rust/fixups/ref-cast/fixups.toml
+++ b/shim/third-party/rust/fixups/ref-cast/fixups.toml
@@ -1 +1,8 @@
+# Copyright (c) Meta Platforms, Inc. and affiliates.
+#
+# This source code is licensed under both the MIT license found in the
+# LICENSE-MIT file in the root directory of this source tree and the Apache
+# License, Version 2.0 found in the LICENSE-APACHE file in the root directory
+# of this source tree.
+
 buildscript = []
diff --git a/shim/third-party/rust/fixups/reqwest/fixups.toml b/shim/third-party/rust/fixups/reqwest/fixups.toml
index af7edb27e3b..9b40a18f4ca 100644
--- a/shim/third-party/rust/fixups/reqwest/fixups.toml
+++ b/shim/third-party/rust/fixups/reqwest/fixups.toml
@@ -1 +1,8 @@
+# Copyright (c) Meta Platforms, Inc. and affiliates.
+#
+# This source code is licensed under both the MIT license found in the
+# LICENSE-MIT file in the root directory of this source tree and the Apache
+# License, Version 2.0 found in the LICENSE-APACHE file in the root directory
+# of this source tree.
+
 extra_srcs = ["src/**/*.rs"]
diff --git a/shim/third-party/rust/fixups/ring/fixups.toml b/shim/third-party/rust/fixups/ring/fixups.toml
index d2c83589cf4..8e7020eb716 100644
--- a/shim/third-party/rust/fixups/ring/fixups.toml
+++ b/shim/third-party/rust/fixups/ring/fixups.toml
@@ -1,3 +1,10 @@
+# Copyright (c) Meta Platforms, Inc. and affiliates.
+#
+# This source code is licensed under both the MIT license found in the
+# LICENSE-MIT file in the root directory of this source tree and the Apache
+# License, Version 2.0 found in the LICENSE-APACHE file in the root directory
+# of this source tree.
+
 # Copied from fbsource fixup.
 
 buildscript = []
diff --git a/shim/third-party/rust/fixups/rustix/fixups.toml b/shim/third-party/rust/fixups/rustix/fixups.toml
index 5e026f75e0d..d514599437f 100644
--- a/shim/third-party/rust/fixups/rustix/fixups.toml
+++ b/shim/third-party/rust/fixups/rustix/fixups.toml
@@ -1,2 +1,9 @@
+# Copyright (c) Meta Platforms, Inc. and affiliates.
+#
+# This source code is licensed under both the MIT license found in the
+# LICENSE-MIT file in the root directory of this source tree and the Apache
+# License, Version 2.0 found in the LICENSE-APACHE file in the root directory
+# of this source tree.
+
 [[buildscript]]
 [buildscript.rustc_flags]
diff --git a/shim/third-party/rust/fixups/rustls/fixups.toml b/shim/third-party/rust/fixups/rustls/fixups.toml
index db40d72cb2e..554cc0dae2b 100644
--- a/shim/third-party/rust/fixups/rustls/fixups.toml
+++ b/shim/third-party/rust/fixups/rustls/fixups.toml
@@ -1 +1,8 @@
+# Copyright (c) Meta Platforms, Inc. and affiliates.
+#
+# This source code is licensed under both the MIT license found in the
+# LICENSE-MIT file in the root directory of this source tree and the Apache
+# License, Version 2.0 found in the LICENSE-APACHE file in the root directory
+# of this source tree.
+
 buildscript = []
diff --git a/shim/third-party/rust/fixups/rustversion/fixups.toml b/shim/third-party/rust/fixups/rustversion/fixups.toml
index ac9ebfb4af7..309316ac454 100644
--- a/shim/third-party/rust/fixups/rustversion/fixups.toml
+++ b/shim/third-party/rust/fixups/rustversion/fixups.toml
@@ -1,2 +1,9 @@
+# Copyright (c) Meta Platforms, Inc. and affiliates.
+#
+# This source code is licensed under both the MIT license found in the
+# LICENSE-MIT file in the root directory of this source tree and the Apache
+# License, Version 2.0 found in the LICENSE-APACHE file in the root directory
+# of this source tree.
+
 [[buildscript]]
 [buildscript.gen_srcs]
diff --git a/shim/third-party/rust/fixups/serde/fixups.toml b/shim/third-party/rust/fixups/serde/fixups.toml
index db40d72cb2e..554cc0dae2b 100644
--- a/shim/third-party/rust/fixups/serde/fixups.toml
+++ b/shim/third-party/rust/fixups/serde/fixups.toml
@@ -1 +1,8 @@
+# Copyright (c) Meta Platforms, Inc. and affiliates.
+#
+# This source code is licensed under both the MIT license found in the
+# LICENSE-MIT file in the root directory of this source tree and the Apache
+# License, Version 2.0 found in the LICENSE-APACHE file in the root directory
+# of this source tree.
+
 buildscript = []
diff --git a/shim/third-party/rust/fixups/serde_derive/fixups.toml b/shim/third-party/rust/fixups/serde_derive/fixups.toml
index 7de4ebb3e19..015a575a2f7 100644
--- a/shim/third-party/rust/fixups/serde_derive/fixups.toml
+++ b/shim/third-party/rust/fixups/serde_derive/fixups.toml
@@ -1,3 +1,10 @@
+# Copyright (c) Meta Platforms, Inc. and affiliates.
+#
+# This source code is licensed under both the MIT license found in the
+# LICENSE-MIT file in the root directory of this source tree and the Apache
+# License, Version 2.0 found in the LICENSE-APACHE file in the root directory
+# of this source tree.
+
 # To set `CARGO_MANIFEST_DIR`
 cargo_env = true
 buildscript = []
diff --git a/shim/third-party/rust/fixups/serde_json/fixups.toml b/shim/third-party/rust/fixups/serde_json/fixups.toml
index 5e026f75e0d..d514599437f 100644
--- a/shim/third-party/rust/fixups/serde_json/fixups.toml
+++ b/shim/third-party/rust/fixups/serde_json/fixups.toml
@@ -1,2 +1,9 @@
+# Copyright (c) Meta Platforms, Inc. and affiliates.
+#
+# This source code is licensed under both the MIT license found in the
+# LICENSE-MIT file in the root directory of this source tree and the Apache
+# License, Version 2.0 found in the LICENSE-APACHE file in the root directory
+# of this source tree.
+
 [[buildscript]]
 [buildscript.rustc_flags]
diff --git a/shim/third-party/rust/fixups/signal-hook/fixups.toml b/shim/third-party/rust/fixups/signal-hook/fixups.toml
index db40d72cb2e..554cc0dae2b 100644
--- a/shim/third-party/rust/fixups/signal-hook/fixups.toml
+++ b/shim/third-party/rust/fixups/signal-hook/fixups.toml
@@ -1 +1,8 @@
+# Copyright (c) Meta Platforms, Inc. and affiliates.
+#
+# This source code is licensed under both the MIT license found in the
+# LICENSE-MIT file in the root directory of this source tree and the Apache
+# License, Version 2.0 found in the LICENSE-APACHE file in the root directory
+# of this source tree.
+
 buildscript = []
diff --git a/shim/third-party/rust/fixups/slab/fixups.toml b/shim/third-party/rust/fixups/slab/fixups.toml
index db40d72cb2e..554cc0dae2b 100644
--- a/shim/third-party/rust/fixups/slab/fixups.toml
+++ b/shim/third-party/rust/fixups/slab/fixups.toml
@@ -1 +1,8 @@
+# Copyright (c) Meta Platforms, Inc. and affiliates.
+#
+# This source code is licensed under both the MIT license found in the
+# LICENSE-MIT file in the root directory of this source tree and the Apache
+# License, Version 2.0 found in the LICENSE-APACHE file in the root directory
+# of this source tree.
+
 buildscript = []
diff --git a/shim/third-party/rust/fixups/slog/fixups.toml b/shim/third-party/rust/fixups/slog/fixups.toml
index db40d72cb2e..554cc0dae2b 100644
--- a/shim/third-party/rust/fixups/slog/fixups.toml
+++ b/shim/third-party/rust/fixups/slog/fixups.toml
@@ -1 +1,8 @@
+# Copyright (c) Meta Platforms, Inc. and affiliates.
+#
+# This source code is licensed under both the MIT license found in the
+# LICENSE-MIT file in the root directory of this source tree and the Apache
+# License, Version 2.0 found in the LICENSE-APACHE file in the root directory
+# of this source tree.
+
 buildscript = []
diff --git a/shim/third-party/rust/fixups/syn/fixups.toml b/shim/third-party/rust/fixups/syn/fixups.toml
index db40d72cb2e..554cc0dae2b 100644
--- a/shim/third-party/rust/fixups/syn/fixups.toml
+++ b/shim/third-party/rust/fixups/syn/fixups.toml
@@ -1 +1,8 @@
+# Copyright (c) Meta Platforms, Inc. and affiliates.
+#
+# This source code is licensed under both the MIT license found in the
+# LICENSE-MIT file in the root directory of this source tree and the Apache
+# License, Version 2.0 found in the LICENSE-APACHE file in the root directory
+# of this source tree.
+
 buildscript = []
diff --git a/shim/third-party/rust/fixups/sys-info/fixups.toml b/shim/third-party/rust/fixups/sys-info/fixups.toml
index 5d124b3ad7a..39a5fdc3727 100644
--- a/shim/third-party/rust/fixups/sys-info/fixups.toml
+++ b/shim/third-party/rust/fixups/sys-info/fixups.toml
@@ -1,3 +1,10 @@
+# Copyright (c) Meta Platforms, Inc. and affiliates.
+#
+# This source code is licensed under both the MIT license found in the
+# LICENSE-MIT file in the root directory of this source tree and the Apache
+# License, Version 2.0 found in the LICENSE-APACHE file in the root directory
+# of this source tree.
+
 buildscript = []
 
 [[platform_fixup.'cfg(target_os = "linux")'.buildscript]]
diff --git a/shim/third-party/rust/fixups/sysinfo/fixups.toml b/shim/third-party/rust/fixups/sysinfo/fixups.toml
index 8518b189700..bcf5ac49248 100644
--- a/shim/third-party/rust/fixups/sysinfo/fixups.toml
+++ b/shim/third-party/rust/fixups/sysinfo/fixups.toml
@@ -1,3 +1,10 @@
+# Copyright (c) Meta Platforms, Inc. and affiliates.
+#
+# This source code is licensed under both the MIT license found in the
+# LICENSE-MIT file in the root directory of this source tree and the Apache
+# License, Version 2.0 found in the LICENSE-APACHE file in the root directory
+# of this source tree.
+
 extra_srcs = ["README.md", "md_doc/**/*.md"]
 buildscript = []
 
diff --git a/shim/third-party/rust/fixups/tempfile/fixups.toml b/shim/third-party/rust/fixups/tempfile/fixups.toml
index 5e026f75e0d..d514599437f 100644
--- a/shim/third-party/rust/fixups/tempfile/fixups.toml
+++ b/shim/third-party/rust/fixups/tempfile/fixups.toml
@@ -1,2 +1,9 @@
+# Copyright (c) Meta Platforms, Inc. and affiliates.
+#
+# This source code is licensed under both the MIT license found in the
+# LICENSE-MIT file in the root directory of this source tree and the Apache
+# License, Version 2.0 found in the LICENSE-APACHE file in the root directory
+# of this source tree.
+
 [[buildscript]]
 [buildscript.rustc_flags]
diff --git a/shim/third-party/rust/fixups/terminfo/fixups.toml b/shim/third-party/rust/fixups/terminfo/fixups.toml
index ac9ebfb4af7..309316ac454 100644
--- a/shim/third-party/rust/fixups/terminfo/fixups.toml
+++ b/shim/third-party/rust/fixups/terminfo/fixups.toml
@@ -1,2 +1,9 @@
+# Copyright (c) Meta Platforms, Inc. and affiliates.
+#
+# This source code is licensed under both the MIT license found in the
+# LICENSE-MIT file in the root directory of this source tree and the Apache
+# License, Version 2.0 found in the LICENSE-APACHE file in the root directory
+# of this source tree.
+
 [[buildscript]]
 [buildscript.gen_srcs]
diff --git a/shim/third-party/rust/fixups/termwiz/fixups.toml b/shim/third-party/rust/fixups/termwiz/fixups.toml
index fdba1eb21b8..478b0154e80 100644
--- a/shim/third-party/rust/fixups/termwiz/fixups.toml
+++ b/shim/third-party/rust/fixups/termwiz/fixups.toml
@@ -1,2 +1,9 @@
+# Copyright (c) Meta Platforms, Inc. and affiliates.
+#
+# This source code is licensed under both the MIT license found in the
+# LICENSE-MIT file in the root directory of this source tree and the Apache
+# License, Version 2.0 found in the LICENSE-APACHE file in the root directory
+# of this source tree.
+
 cargo_env = true
 extra_srcs = ["src/**/*.pest"]
diff --git a/shim/third-party/rust/fixups/test-case/fixups.toml b/shim/third-party/rust/fixups/test-case/fixups.toml
index db40d72cb2e..554cc0dae2b 100644
--- a/shim/third-party/rust/fixups/test-case/fixups.toml
+++ b/shim/third-party/rust/fixups/test-case/fixups.toml
@@ -1 +1,8 @@
+# Copyright (c) Meta Platforms, Inc. and affiliates.
+#
+# This source code is licensed under both the MIT license found in the
+# LICENSE-MIT file in the root directory of this source tree and the Apache
+# License, Version 2.0 found in the LICENSE-APACHE file in the root directory
+# of this source tree.
+
 buildscript = []
diff --git a/shim/third-party/rust/fixups/thiserror/fixups.toml b/shim/third-party/rust/fixups/thiserror/fixups.toml
index db40d72cb2e..554cc0dae2b 100644
--- a/shim/third-party/rust/fixups/thiserror/fixups.toml
+++ b/shim/third-party/rust/fixups/thiserror/fixups.toml
@@ -1 +1,8 @@
+# Copyright (c) Meta Platforms, Inc. and affiliates.
+#
+# This source code is licensed under both the MIT license found in the
+# LICENSE-MIT file in the root directory of this source tree and the Apache
+# License, Version 2.0 found in the LICENSE-APACHE file in the root directory
+# of this source tree.
+
 buildscript = []
diff --git a/shim/third-party/rust/fixups/tiny-keccak/fixups.toml b/shim/third-party/rust/fixups/tiny-keccak/fixups.toml
index db40d72cb2e..554cc0dae2b 100644
--- a/shim/third-party/rust/fixups/tiny-keccak/fixups.toml
+++ b/shim/third-party/rust/fixups/tiny-keccak/fixups.toml
@@ -1 +1,8 @@
+# Copyright (c) Meta Platforms, Inc. and affiliates.
+#
+# This source code is licensed under both the MIT license found in the
+# LICENSE-MIT file in the root directory of this source tree and the Apache
+# License, Version 2.0 found in the LICENSE-APACHE file in the root directory
+# of this source tree.
+
 buildscript = []
diff --git a/shim/third-party/rust/fixups/tokio-stream/fixups.toml b/shim/third-party/rust/fixups/tokio-stream/fixups.toml
index a1f4f0e7091..3c20ec4086b 100644
--- a/shim/third-party/rust/fixups/tokio-stream/fixups.toml
+++ b/shim/third-party/rust/fixups/tokio-stream/fixups.toml
@@ -1,2 +1,9 @@
+# Copyright (c) Meta Platforms, Inc. and affiliates.
+#
+# This source code is licensed under both the MIT license found in the
+# LICENSE-MIT file in the root directory of this source tree and the Apache
+# License, Version 2.0 found in the LICENSE-APACHE file in the root directory
+# of this source tree.
+
 # reindeer cannot see through `cfg_sync!` macros and the like
 extra_srcs = ["src/**/*.rs"]
diff --git a/shim/third-party/rust/fixups/tokio-util/fixups.toml b/shim/third-party/rust/fixups/tokio-util/fixups.toml
index af7edb27e3b..9b40a18f4ca 100644
--- a/shim/third-party/rust/fixups/tokio-util/fixups.toml
+++ b/shim/third-party/rust/fixups/tokio-util/fixups.toml
@@ -1 +1,8 @@
+# Copyright (c) Meta Platforms, Inc. and affiliates.
+#
+# This source code is licensed under both the MIT license found in the
+# LICENSE-MIT file in the root directory of this source tree and the Apache
+# License, Version 2.0 found in the LICENSE-APACHE file in the root directory
+# of this source tree.
+
 extra_srcs = ["src/**/*.rs"]
diff --git a/shim/third-party/rust/fixups/tokio/fixups.toml b/shim/third-party/rust/fixups/tokio/fixups.toml
index d69dcefddb3..1446deebebd 100644
--- a/shim/third-party/rust/fixups/tokio/fixups.toml
+++ b/shim/third-party/rust/fixups/tokio/fixups.toml
@@ -1,3 +1,10 @@
+# Copyright (c) Meta Platforms, Inc. and affiliates.
+#
+# This source code is licensed under both the MIT license found in the
+# LICENSE-MIT file in the root directory of this source tree and the Apache
+# License, Version 2.0 found in the LICENSE-APACHE file in the root directory
+# of this source tree.
+
 cfgs = ["tokio_unstable", "tokio_track_caller"]
 
 extra_srcs = ["src/**/*.rs"]
diff --git a/shim/third-party/rust/fixups/tonic/fixups.toml b/shim/third-party/rust/fixups/tonic/fixups.toml
index 41439d3356a..1da45ba2314 100644
--- a/shim/third-party/rust/fixups/tonic/fixups.toml
+++ b/shim/third-party/rust/fixups/tonic/fixups.toml
@@ -1 +1,8 @@
+# Copyright (c) Meta Platforms, Inc. and affiliates.
+#
+# This source code is licensed under both the MIT license found in the
+# LICENSE-MIT file in the root directory of this source tree and the Apache
+# License, Version 2.0 found in the LICENSE-APACHE file in the root directory
+# of this source tree.
+
 cargo_env = true
diff --git a/shim/third-party/rust/fixups/tracing-subscriber/fixups.toml b/shim/third-party/rust/fixups/tracing-subscriber/fixups.toml
index 28683dbe3cb..bb8e8892b73 100644
--- a/shim/third-party/rust/fixups/tracing-subscriber/fixups.toml
+++ b/shim/third-party/rust/fixups/tracing-subscriber/fixups.toml
@@ -1,2 +1,9 @@
+# Copyright (c) Meta Platforms, Inc. and affiliates.
+#
+# This source code is licensed under both the MIT license found in the
+# LICENSE-MIT file in the root directory of this source tree and the Apache
+# License, Version 2.0 found in the LICENSE-APACHE file in the root directory
+# of this source tree.
+
 # Reindeer can't find the dependencies due to being confused by the feature! macro.
 extra_srcs = ["src/**/*.rs"]
diff --git a/shim/third-party/rust/fixups/trybuild/fixups.toml b/shim/third-party/rust/fixups/trybuild/fixups.toml
index ac9ebfb4af7..309316ac454 100644
--- a/shim/third-party/rust/fixups/trybuild/fixups.toml
+++ b/shim/third-party/rust/fixups/trybuild/fixups.toml
@@ -1,2 +1,9 @@
+# Copyright (c) Meta Platforms, Inc. and affiliates.
+#
+# This source code is licensed under both the MIT license found in the
+# LICENSE-MIT file in the root directory of this source tree and the Apache
+# License, Version 2.0 found in the LICENSE-APACHE file in the root directory
+# of this source tree.
+
 [[buildscript]]
 [buildscript.gen_srcs]
diff --git a/shim/third-party/rust/fixups/typenum/fixups.toml b/shim/third-party/rust/fixups/typenum/fixups.toml
index 7ab02e4fd17..6f947d94b63 100644
--- a/shim/third-party/rust/fixups/typenum/fixups.toml
+++ b/shim/third-party/rust/fixups/typenum/fixups.toml
@@ -1,3 +1,10 @@
+# Copyright (c) Meta Platforms, Inc. and affiliates.
+#
+# This source code is licensed under both the MIT license found in the
+# LICENSE-MIT file in the root directory of this source tree and the Apache
+# License, Version 2.0 found in the LICENSE-APACHE file in the root directory
+# of this source tree.
+
 features = ["force_unix_path_separator"]
 
 [[buildscript]]
diff --git a/shim/third-party/rust/fixups/unicase/fixups.toml b/shim/third-party/rust/fixups/unicase/fixups.toml
index db40d72cb2e..554cc0dae2b 100644
--- a/shim/third-party/rust/fixups/unicase/fixups.toml
+++ b/shim/third-party/rust/fixups/unicase/fixups.toml
@@ -1 +1,8 @@
+# Copyright (c) Meta Platforms, Inc. and affiliates.
+#
+# This source code is licensed under both the MIT license found in the
+# LICENSE-MIT file in the root directory of this source tree and the Apache
+# License, Version 2.0 found in the LICENSE-APACHE file in the root directory
+# of this source tree.
+
 buildscript = []
diff --git a/shim/third-party/rust/fixups/winapi-x86_64-pc-windows-gnu/fixups.toml b/shim/third-party/rust/fixups/winapi-x86_64-pc-windows-gnu/fixups.toml
index 07c79834d92..a5a969de56a 100644
--- a/shim/third-party/rust/fixups/winapi-x86_64-pc-windows-gnu/fixups.toml
+++ b/shim/third-party/rust/fixups/winapi-x86_64-pc-windows-gnu/fixups.toml
@@ -1,3 +1,10 @@
+# Copyright (c) Meta Platforms, Inc. and affiliates.
+#
+# This source code is licensed under both the MIT license found in the
+# LICENSE-MIT file in the root directory of this source tree and the Apache
+# License, Version 2.0 found in the LICENSE-APACHE file in the root directory
+# of this source tree.
+
 buildscript = []
 
 [[platform_fixup.'cfg(target_os = "windows")'.buildscript]]
diff --git a/shim/third-party/rust/fixups/winapi/fixups.toml b/shim/third-party/rust/fixups/winapi/fixups.toml
index ec4f86e500d..295d056aba7 100644
--- a/shim/third-party/rust/fixups/winapi/fixups.toml
+++ b/shim/third-party/rust/fixups/winapi/fixups.toml
@@ -1,3 +1,10 @@
+# Copyright (c) Meta Platforms, Inc. and affiliates.
+#
+# This source code is licensed under both the MIT license found in the
+# LICENSE-MIT file in the root directory of this source tree and the Apache
+# License, Version 2.0 found in the LICENSE-APACHE file in the root directory
+# of this source tree.
+
 buildscript = []
 
 [[platform_fixup.'cfg(target_os = "windows")'.buildscript]]
diff --git a/shim/third-party/rust/fixups/windows-targets/fixups.toml b/shim/third-party/rust/fixups/windows-targets/fixups.toml
index b3555c7795e..9268eebf6b8 100644
--- a/shim/third-party/rust/fixups/windows-targets/fixups.toml
+++ b/shim/third-party/rust/fixups/windows-targets/fixups.toml
@@ -1,3 +1,10 @@
+# Copyright (c) Meta Platforms, Inc. and affiliates.
+#
+# This source code is licensed under both the MIT license found in the
+# LICENSE-MIT file in the root directory of this source tree and the Apache
+# License, Version 2.0 found in the LICENSE-APACHE file in the root directory
+# of this source tree.
+
 [platform_fixup.'cfg(any(target_os = "windows", target_os = "linux"))']
 version = ">=0.48.0"
 cfgs = ["windows_raw_dylib"]
diff --git a/shim/third-party/rust/fixups/windows_aarch64_gnullvm/fixups.toml b/shim/third-party/rust/fixups/windows_aarch64_gnullvm/fixups.toml
index f40e9f9cbe6..c924883f5b0 100644
--- a/shim/third-party/rust/fixups/windows_aarch64_gnullvm/fixups.toml
+++ b/shim/third-party/rust/fixups/windows_aarch64_gnullvm/fixups.toml
@@ -1,3 +1,10 @@
+# Copyright (c) Meta Platforms, Inc. and affiliates.
+#
+# This source code is licensed under both the MIT license found in the
+# LICENSE-MIT file in the root directory of this source tree and the Apache
+# License, Version 2.0 found in the LICENSE-APACHE file in the root directory
+# of this source tree.
+
 buildscript = []
 
 [platform_fixup.'cfg(all(target_os = "linux", target_arch = "aarch64"))']
diff --git a/shim/third-party/rust/fixups/windows_x86_64_gnu/fixups.toml b/shim/third-party/rust/fixups/windows_x86_64_gnu/fixups.toml
index b25e7f05fa5..aa5cd0bf4e7 100644
--- a/shim/third-party/rust/fixups/windows_x86_64_gnu/fixups.toml
+++ b/shim/third-party/rust/fixups/windows_x86_64_gnu/fixups.toml
@@ -1,3 +1,10 @@
+# Copyright (c) Meta Platforms, Inc. and affiliates.
+#
+# This source code is licensed under both the MIT license found in the
+# LICENSE-MIT file in the root directory of this source tree and the Apache
+# License, Version 2.0 found in the LICENSE-APACHE file in the root directory
+# of this source tree.
+
 buildscript = []
 
 [platform_fixup.'cfg(all(target_os = "windows", target_env = "gnu"))']
diff --git a/shim/third-party/rust/fixups/windows_x86_64_gnullvm/fixups.toml b/shim/third-party/rust/fixups/windows_x86_64_gnullvm/fixups.toml
index a5579b6930e..568edc03a17 100644
--- a/shim/third-party/rust/fixups/windows_x86_64_gnullvm/fixups.toml
+++ b/shim/third-party/rust/fixups/windows_x86_64_gnullvm/fixups.toml
@@ -1,3 +1,10 @@
+# Copyright (c) Meta Platforms, Inc. and affiliates.
+#
+# This source code is licensed under both the MIT license found in the
+# LICENSE-MIT file in the root directory of this source tree and the Apache
+# License, Version 2.0 found in the LICENSE-APACHE file in the root directory
+# of this source tree.
+
 buildscript = []
 
 [platform_fixup.'cfg(all(target_os = "linux", target_arch = "x86_64"))']
diff --git a/shim/third-party/rust/fixups/windows_x86_64_msvc/fixups.toml b/shim/third-party/rust/fixups/windows_x86_64_msvc/fixups.toml
index 8e8dea35165..541a4b122eb 100644
--- a/shim/third-party/rust/fixups/windows_x86_64_msvc/fixups.toml
+++ b/shim/third-party/rust/fixups/windows_x86_64_msvc/fixups.toml
@@ -1,3 +1,10 @@
+# Copyright (c) Meta Platforms, Inc. and affiliates.
+#
+# This source code is licensed under both the MIT license found in the
+# LICENSE-MIT file in the root directory of this source tree and the Apache
+# License, Version 2.0 found in the LICENSE-APACHE file in the root directory
+# of this source tree.
+
 buildscript = []
 
 [platform_fixup.'cfg(all(target_os = "windows", target_env = "msvc"))']
diff --git a/shim/third-party/rust/fixups/winreg/fixups.toml b/shim/third-party/rust/fixups/winreg/fixups.toml
index db40d72cb2e..554cc0dae2b 100644
--- a/shim/third-party/rust/fixups/winreg/fixups.toml
+++ b/shim/third-party/rust/fixups/winreg/fixups.toml
@@ -1 +1,8 @@
+# Copyright (c) Meta Platforms, Inc. and affiliates.
+#
+# This source code is licensed under both the MIT license found in the
+# LICENSE-MIT file in the root directory of this source tree and the Apache
+# License, Version 2.0 found in the LICENSE-APACHE file in the root directory
+# of this source tree.
+
 buildscript = []
diff --git a/shim/third-party/rust/fixups/zerocopy/fixups.toml b/shim/third-party/rust/fixups/zerocopy/fixups.toml
index 41439d3356a..1da45ba2314 100644
--- a/shim/third-party/rust/fixups/zerocopy/fixups.toml
+++ b/shim/third-party/rust/fixups/zerocopy/fixups.toml
@@ -1 +1,8 @@
+# Copyright (c) Meta Platforms, Inc. and affiliates.
+#
+# This source code is licensed under both the MIT license found in the
+# LICENSE-MIT file in the root directory of this source tree and the Apache
+# License, Version 2.0 found in the LICENSE-APACHE file in the root directory
+# of this source tree.
+
 cargo_env = true
diff --git a/shim/third-party/rust/fixups/zstd-safe/fixups.toml b/shim/third-party/rust/fixups/zstd-safe/fixups.toml
index db40d72cb2e..554cc0dae2b 100644
--- a/shim/third-party/rust/fixups/zstd-safe/fixups.toml
+++ b/shim/third-party/rust/fixups/zstd-safe/fixups.toml
@@ -1 +1,8 @@
+# Copyright (c) Meta Platforms, Inc. and affiliates.
+#
+# This source code is licensed under both the MIT license found in the
+# LICENSE-MIT file in the root directory of this source tree and the Apache
+# License, Version 2.0 found in the LICENSE-APACHE file in the root directory
+# of this source tree.
+
 buildscript = []
diff --git a/shim/third-party/rust/fixups/zstd-sys/fixups.toml b/shim/third-party/rust/fixups/zstd-sys/fixups.toml
index 2e2d704263a..c627d9be88b 100644
--- a/shim/third-party/rust/fixups/zstd-sys/fixups.toml
+++ b/shim/third-party/rust/fixups/zstd-sys/fixups.toml
@@ -1,3 +1,10 @@
+# Copyright (c) Meta Platforms, Inc. and affiliates.
+#
+# This source code is licensed under both the MIT license found in the
+# LICENSE-MIT file in the root directory of this source tree and the Apache
+# License, Version 2.0 found in the LICENSE-APACHE file in the root directory
+# of this source tree.
+
 buildscript = []
 
 [[platform_fixup.'cfg(not(all(target_os = "windows", target_env = "msvc")))'.buildscript]]
diff --git a/shim/third-party/rust/reindeer.toml b/shim/third-party/rust/reindeer.toml
index ab3d1f8d4db..13d929bbbe9 100644
--- a/shim/third-party/rust/reindeer.toml
+++ b/shim/third-party/rust/reindeer.toml
@@ -1,3 +1,10 @@
+# Copyright (c) Meta Platforms, Inc. and affiliates.
+#
+# This source code is licensed under both the MIT license found in the
+# LICENSE-MIT file in the root directory of this source tree and the Apache
+# License, Version 2.0 found in the LICENSE-APACHE file in the root directory
+# of this source tree.
+
 # Configuration for Reindeer to generate Buck targets from Cargo.toml
 #
 # Overview of available options: