[INFO] crate mp3-metadata 0.3.0 is already in cache
[INFO] extracting crate mp3-metadata 0.3.0 into work/ex/pr-57617/sources/master#e2f221c75932de7a29845c8d6f1f73536ad00c41/reg/mp3-metadata/0.3.0
[INFO] extracting crate mp3-metadata 0.3.0 into work/ex/pr-57617/sources/try#0bfb90d213a93e466b33d078a5b535a2a6f9c5ff/reg/mp3-metadata/0.3.0
[INFO] validating manifest of mp3-metadata-0.3.0 on toolchain master#e2f221c75932de7a29845c8d6f1f73536ad00c41
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+e2f221c75932de7a29845c8d6f1f73536ad00c41-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of mp3-metadata-0.3.0 on toolchain try#0bfb90d213a93e466b33d078a5b535a2a6f9c5ff
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+0bfb90d213a93e466b33d078a5b535a2a6f9c5ff-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing mp3-metadata-0.3.0
[INFO] finished frobbing mp3-metadata-0.3.0
[INFO] frobbed toml for mp3-metadata-0.3.0 written to work/ex/pr-57617/sources/master#e2f221c75932de7a29845c8d6f1f73536ad00c41/reg/mp3-metadata/0.3.0/Cargo.toml
[INFO] started frobbing mp3-metadata-0.3.0
[INFO] finished frobbing mp3-metadata-0.3.0
[INFO] frobbed toml for mp3-metadata-0.3.0 written to work/ex/pr-57617/sources/try#0bfb90d213a93e466b33d078a5b535a2a6f9c5ff/reg/mp3-metadata/0.3.0/Cargo.toml
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+e2f221c75932de7a29845c8d6f1f73536ad00c41-alt" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+0bfb90d213a93e466b33d078a5b535a2a6f9c5ff-alt" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+e2f221c75932de7a29845c8d6f1f73536ad00c41-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+0bfb90d213a93e466b33d078a5b535a2a6f9c5ff-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] checking mp3-metadata-0.3.0 against try#0bfb90d213a93e466b33d078a5b535a2a6f9c5ff for pr-57617
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-57617/worker-6/try#0bfb90d213a93e466b33d078a5b535a2a6f9c5ff:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-57617/sources/try#0bfb90d213a93e466b33d078a5b535a2a6f9c5ff/reg/mp3-metadata/0.3.0:/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" "+0bfb90d213a93e466b33d078a5b535a2a6f9c5ff-alt" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] 86acdc2ca9e10626ebaa907072ecac76b2c31a8f75c587f04ab99329bd6282d0
[INFO] running `"docker" "start" "-a" "86acdc2ca9e10626ebaa907072ecac76b2c31a8f75c587f04ab99329bd6282d0"`
[INFO] [stderr]     Checking mp3-metadata v0.3.0 (/opt/crater/workdir)
[INFO] [stderr]    Compiling simplemad_sys v0.5.0
[INFO] [stderr]     Checking simplemad v0.8.1
[INFO] [stderr] warning: unused variable: `meta`
[INFO] [stderr]  --> tests/error_check.rs:8:9
[INFO] [stderr]   |
[INFO] [stderr] 8 |     let meta = mp3_metadata::read_from_file("assets/error.mp3");//.expect("File error");
[INFO] [stderr]   |         ^^^^ help: consider using `_meta` instead
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(unused_variables)] on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 5.82s
[INFO] running `"docker" "inspect" "86acdc2ca9e10626ebaa907072ecac76b2c31a8f75c587f04ab99329bd6282d0"`
[INFO] running `"docker" "rm" "-f" "86acdc2ca9e10626ebaa907072ecac76b2c31a8f75c587f04ab99329bd6282d0"`
[INFO] [stdout] 86acdc2ca9e10626ebaa907072ecac76b2c31a8f75c587f04ab99329bd6282d0