Dec 15 04:20:28.845 INFO testing mp3-metadata-0.3.0 against master#bd47d6825bf4090517549d33cfef10d3300b4a75 for pr-56550
Dec 15 04:20:28.845 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56550/worker-4/master#bd47d6825bf4090517549d33cfef10d3300b4a75:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-4/pr-56550/master#bd47d6825bf4090517549d33cfef10d3300b4a75:/source:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/source" "-e" "USER_ID=1000" "-e" "CMD=cargo +bd47d6825bf4090517549d33cfef10d3300b4a75-alt build --frozen" "-e" "CARGO_TARGET_DIR=/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/cargo-home" "-e" "RUSTUP_HOME=/rustup-home" "-m" "1536M" "--network" "none" "crater"`
Dec 15 04:20:29.034 INFO [stdout] 136d2107eb237b6b6f96e04dc6cabf0821ed5a3ec863017c9953ce991d3f42ee
Dec 15 04:20:29.040 INFO running `"docker" "start" "-a" "136d2107eb237b6b6f96e04dc6cabf0821ed5a3ec863017c9953ce991d3f42ee"`
Dec 15 04:20:29.694 INFO [stderr] usermod: no changes
Dec 15 04:20:29.819 INFO [stderr]    Compiling mp3-metadata v0.3.0 (/source)
Dec 15 04:20:31.670 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.96s
Dec 15 04:20:31.687 INFO [stderr] su: No module specific data is present
Dec 15 04:20:32.628 INFO running `"docker" "inspect" "136d2107eb237b6b6f96e04dc6cabf0821ed5a3ec863017c9953ce991d3f42ee"`
Dec 15 04:20:32.955 INFO running `"docker" "rm" "-f" "136d2107eb237b6b6f96e04dc6cabf0821ed5a3ec863017c9953ce991d3f42ee"`
Dec 15 04:20:33.239 INFO [stdout] 136d2107eb237b6b6f96e04dc6cabf0821ed5a3ec863017c9953ce991d3f42ee
Dec 15 04:20:33.245 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56550/worker-4/master#bd47d6825bf4090517549d33cfef10d3300b4a75:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-4/pr-56550/master#bd47d6825bf4090517549d33cfef10d3300b4a75:/source:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/source" "-e" "USER_ID=1000" "-e" "CMD=cargo +bd47d6825bf4090517549d33cfef10d3300b4a75-alt test --frozen --no-run" "-e" "CARGO_TARGET_DIR=/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/cargo-home" "-e" "RUSTUP_HOME=/rustup-home" "-m" "1536M" "--network" "none" "crater"`
Dec 15 04:20:33.624 INFO [stdout] 6b6837c09922007b3f83336ae479a538892e19b3da1ab30dd6d4f50b42c876e3
Dec 15 04:20:33.626 INFO running `"docker" "start" "-a" "6b6837c09922007b3f83336ae479a538892e19b3da1ab30dd6d4f50b42c876e3"`
Dec 15 04:20:36.114 INFO [stderr] usermod: no changes
Dec 15 04:20:36.606 INFO [stderr]    Compiling simplemad_sys v0.5.0
Dec 15 04:20:40.154 INFO [stderr]    Compiling simplemad v0.8.1
Dec 15 04:20:41.183 INFO [stderr]    Compiling mp3-metadata v0.3.0 (/source)
Dec 15 04:20:54.963 INFO [stderr] warning: unused variable: `meta`
Dec 15 04:20:54.963 INFO [stderr]  --> tests/error_check.rs:8:9
Dec 15 04:20:54.963 INFO [stderr]   |
Dec 15 04:20:54.963 INFO [stderr] 8 |     let meta = mp3_metadata::read_from_file("assets/error.mp3");//.expect("File error");
Dec 15 04:20:54.963 INFO [stderr]   |         ^^^^ help: consider using `_meta` instead
Dec 15 04:20:54.963 INFO [stderr]   |
Dec 15 04:20:54.963 INFO [stderr]   = note: #[warn(unused_variables)] on by default
Dec 15 04:20:54.963 INFO [stderr] 
Dec 15 04:20:59.735 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 23.58s
Dec 15 04:20:59.747 INFO [stderr] su: No module specific data is present
Dec 15 04:21:00.148 INFO running `"docker" "inspect" "6b6837c09922007b3f83336ae479a538892e19b3da1ab30dd6d4f50b42c876e3"`
Dec 15 04:21:00.248 INFO running `"docker" "rm" "-f" "6b6837c09922007b3f83336ae479a538892e19b3da1ab30dd6d4f50b42c876e3"`
Dec 15 04:21:00.398 INFO [stdout] 6b6837c09922007b3f83336ae479a538892e19b3da1ab30dd6d4f50b42c876e3