CI: armv7-unknown-linux-musleabihf cross test fails with Rust 1.84.0

[tatsuya6502]

The Linux cross-compiling test for the armv7-unknown-linux-musleabihf target has been failing since the release of Rust 1.84.0. It consistently fails on a specific test: future::base_cache::tests::test_per_entry_expiration. The same test for the sync cache succeeds.

https://github.com/moka-rs/moka/actions/runs/12717383830/job/35456822039

$ cross test --release -F future \
    --target armv7-unknown-linux-musleabihf

...

failures:

---- future::base_cache::tests::test_per_entry_expiration stdout ----
thread 'future::base_cache::tests::test_per_entry_expiration' panicked at src/future/base_cache.rs:3031:25:
assertion `left == right` failed: Mismatched `last_modified_at`s. line: 3176
  left: Instant { tv_sec: 248, tv_nsec: 1673538076 }
 right: Instant { tv_sec: 247, tv_nsec: 388570781 }
note: run with `RUST_BACKTRACE=1` environment variable to display a backtrace


failures:
    future::base_cache::tests::test_per_entry_expiration

test result: FAILED. 91 passed; 1 failed; 1 ignored; 0 measured; 0 filtered out; finished in 24.87s

[tatsuya6502]

I can reproduce the failure on my Mac with cross.

• It fails when it is cross-compiled by rustc 1.84.0 (9fc6b4312 2025-01-07).
• It passes when it is cross-compiled by rustc 1.83.0 (90b35a623 2024-11-26).

Environment:

• rustc host: x86_64-unknown-linux-gnu
• rustc target: armv7-unknown-linux-musleabihf
• macOS Sequoia 15.2 (arm64)
  • Docker: OrbStack 1.9.2 (18814)
• cross 0.2.5 (4090bec 2024-10-15)

[tatsuya6502]

This seems to be an incorrect compilation by Rust 1.84.0 for the armv7-unknown-linux-musleabihf target.

• If I remove the --release option, the test passes.
• If I add a dbg! print at the following location, the test passes even if the --release option is specified.

diff --git a/src/common/time/clock.rs b/src/common/time/clock.rs
index 2032f91..c63a3eb 100644
--- a/src/common/time/clock.rs
+++ b/src/common/time/clock.rs
@@ -126,7 +126,7 @@ impl Clock {
             #[cfg(test)]
             ClockType::Mocked { mock } => {
                 let duration = Duration::from_nanos(instant.as_nanos());
-                mock.origin + duration
+                dbg!(mock.origin + duration)
             }
         }
     }

[tatsuya6502]

Dependency versions: Cargo.lock.gz