[INFO] crate argon2rs 0.2.5 is already in cache
[INFO] extracting crate argon2rs 0.2.5 into work/ex/pr-57609/sources/master#03acbd71c977cd63ce5f39ba9b6fe9ffd578785a/reg/argon2rs/0.2.5
[INFO] extracting crate argon2rs 0.2.5 into work/ex/pr-57609/sources/try#26f8d250bb3c8a85e812cf663c730ef9e0df9315/reg/argon2rs/0.2.5
[INFO] validating manifest of argon2rs-0.2.5 on toolchain master#03acbd71c977cd63ce5f39ba9b6fe9ffd578785a
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+03acbd71c977cd63ce5f39ba9b6fe9ffd578785a-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of argon2rs-0.2.5 on toolchain try#26f8d250bb3c8a85e812cf663c730ef9e0df9315
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+26f8d250bb3c8a85e812cf663c730ef9e0df9315-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-57609/sources/master#03acbd71c977cd63ce5f39ba9b6fe9ffd578785a/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-57609/sources/try#26f8d250bb3c8a85e812cf663c730ef9e0df9315/reg/argon2rs/0.2.5/Cargo.toml
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+03acbd71c977cd63ce5f39ba9b6fe9ffd578785a-alt" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+26f8d250bb3c8a85e812cf663c730ef9e0df9315-alt" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+03acbd71c977cd63ce5f39ba9b6fe9ffd578785a-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+26f8d250bb3c8a85e812cf663c730ef9e0df9315-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] checking argon2rs-0.2.5 against master#03acbd71c977cd63ce5f39ba9b6fe9ffd578785a for pr-57609
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-57609/worker-2/master#03acbd71c977cd63ce5f39ba9b6fe9ffd578785a:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-57609/sources/master#03acbd71c977cd63ce5f39ba9b6fe9ffd578785a/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" "+03acbd71c977cd63ce5f39ba9b6fe9ffd578785a-alt" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] 06c8f699e3009df5c807f75ef4df490b1ba901026c7ed57a44c090fe191a4ecf
[INFO] running `"docker" "start" "-a" "06c8f699e3009df5c807f75ef4df490b1ba901026c7ed57a44c090fe191a4ecf"`
[INFO] [stderr]    Compiling cargon v0.0.1
[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 3.03s
[INFO] running `"docker" "inspect" "06c8f699e3009df5c807f75ef4df490b1ba901026c7ed57a44c090fe191a4ecf"`
[INFO] running `"docker" "rm" "-f" "06c8f699e3009df5c807f75ef4df490b1ba901026c7ed57a44c090fe191a4ecf"`
[INFO] [stdout] 06c8f699e3009df5c807f75ef4df490b1ba901026c7ed57a44c090fe191a4ecf