[INFO] crate argon2rs 0.2.5 is already in cache
[INFO] extracting crate argon2rs 0.2.5 into work/ex/pr-57321/sources/master#c0bbc3927e28c22edefe6a1353b5ecc95ea9a104/reg/argon2rs/0.2.5
[INFO] extracting crate argon2rs 0.2.5 into work/ex/pr-57321/sources/try#b9139d2caca1db46014a9c302d5c47cfae0d8ae0/reg/argon2rs/0.2.5
[INFO] validating manifest of argon2rs-0.2.5 on toolchain master#c0bbc3927e28c22edefe6a1353b5ecc95ea9a104
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+c0bbc3927e28c22edefe6a1353b5ecc95ea9a104-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of argon2rs-0.2.5 on toolchain try#b9139d2caca1db46014a9c302d5c47cfae0d8ae0
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+b9139d2caca1db46014a9c302d5c47cfae0d8ae0-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing argon2rs-0.2.5
[INFO] removed path dependency cargon from argon2rs-0.2.5
[INFO] finished frobbing argon2rs-0.2.5
[INFO] frobbed toml for argon2rs-0.2.5 written to work/ex/pr-57321/sources/master#c0bbc3927e28c22edefe6a1353b5ecc95ea9a104/reg/argon2rs/0.2.5/Cargo.toml
[INFO] started frobbing argon2rs-0.2.5
[INFO] removed path dependency cargon from argon2rs-0.2.5
[INFO] finished frobbing argon2rs-0.2.5
[INFO] frobbed toml for argon2rs-0.2.5 written to work/ex/pr-57321/sources/try#b9139d2caca1db46014a9c302d5c47cfae0d8ae0/reg/argon2rs/0.2.5/Cargo.toml
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+c0bbc3927e28c22edefe6a1353b5ecc95ea9a104-alt" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+b9139d2caca1db46014a9c302d5c47cfae0d8ae0-alt" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+c0bbc3927e28c22edefe6a1353b5ecc95ea9a104-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+b9139d2caca1db46014a9c302d5c47cfae0d8ae0-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] checking argon2rs-0.2.5 against try#b9139d2caca1db46014a9c302d5c47cfae0d8ae0 for pr-57321
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-57321/worker-5/try#b9139d2caca1db46014a9c302d5c47cfae0d8ae0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-57321/sources/try#b9139d2caca1db46014a9c302d5c47cfae0d8ae0/reg/argon2rs/0.2.5:/opt/crater/workdir:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/opt/crater/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/opt/crater/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/crater/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/crater/cargo-home" "-e" "RUSTUP_HOME=/opt/crater/rustup-home" "-w" "/opt/crater/workdir" "-m" "1536M" "--network" "none" "rustops/crates-build-env" "/opt/crater/cargo-home/bin/cargo" "+b9139d2caca1db46014a9c302d5c47cfae0d8ae0-alt" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] 04058e84c2ab265a397d1e335ca6fa10ddc60d52232269aaea8f6338e0904bc2
[INFO] running `"docker" "start" "-a" "04058e84c2ab265a397d1e335ca6fa10ddc60d52232269aaea8f6338e0904bc2"`
[INFO] [stderr]     Checking argon2rs v0.2.5 (/opt/crater/workdir)
[INFO] [stderr] warning: method is never used: `iter`
[INFO] [stderr]    --> src/block.rs:118:5
[INFO] [stderr]     |
[INFO] [stderr] 118 |     pub fn iter(&self) -> Iter<Vec<Block>> { self.0.iter() }
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(dead_code)] on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2.11s
[INFO] running `"docker" "inspect" "04058e84c2ab265a397d1e335ca6fa10ddc60d52232269aaea8f6338e0904bc2"`
[INFO] running `"docker" "rm" "-f" "04058e84c2ab265a397d1e335ca6fa10ddc60d52232269aaea8f6338e0904bc2"`
[INFO] [stdout] 04058e84c2ab265a397d1e335ca6fa10ddc60d52232269aaea8f6338e0904bc2