fixing cargo publish

crates/peer_binary_protocol/Cargo.toml

@@ -8,6 +8,14 @@ documentation = "https://docs.rs/librqbit-peer-protocol"
 repository = "https://github.com/ikatson/rqbit"
 readme = "README.md"
 
+[features]
+default = ["sha1-crypto-hash"]
+sha1-crypto-hash = [
+    "bencode/sha1-crypto-hash",
+    "librqbit-core/sha1-crypto-hash",
+]
+sha1-ring = ["bencode/sha1-ring", "librqbit-core/sha1-ring"]
+
 # See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html
 [dependencies]
 serde = { version = "1", features = ["derive"] }