[INFO] crate melody 0.2.2 is already in cache
[INFO] extracting crate melody 0.2.2 into work/ex/pr-60039-1/sources/master#e305df1846a6d985315917ae0c81b74af8b4e641/reg/melody/0.2.2
[INFO] extracting crate melody 0.2.2 into work/ex/pr-60039-1/sources/try#99a7498759a22b5684caf798a98b7e90ad9d2443/reg/melody/0.2.2
[INFO] validating manifest of melody-0.2.2 on toolchain master#e305df1846a6d985315917ae0c81b74af8b4e641
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+e305df1846a6d985315917ae0c81b74af8b4e641-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of melody-0.2.2 on toolchain try#99a7498759a22b5684caf798a98b7e90ad9d2443
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+99a7498759a22b5684caf798a98b7e90ad9d2443-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing melody-0.2.2
[INFO] finished frobbing melody-0.2.2
[INFO] frobbed toml for melody-0.2.2 written to work/ex/pr-60039-1/sources/master#e305df1846a6d985315917ae0c81b74af8b4e641/reg/melody/0.2.2/Cargo.toml
[INFO] started frobbing melody-0.2.2
[INFO] finished frobbing melody-0.2.2
[INFO] frobbed toml for melody-0.2.2 written to work/ex/pr-60039-1/sources/try#99a7498759a22b5684caf798a98b7e90ad9d2443/reg/melody/0.2.2/Cargo.toml
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+e305df1846a6d985315917ae0c81b74af8b4e641-alt" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+99a7498759a22b5684caf798a98b7e90ad9d2443-alt" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+e305df1846a6d985315917ae0c81b74af8b4e641-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+99a7498759a22b5684caf798a98b7e90ad9d2443-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] checking melody-0.2.2 against try#99a7498759a22b5684caf798a98b7e90ad9d2443 for pr-60039-1
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-60039-1/worker-0/try#99a7498759a22b5684caf798a98b7e90ad9d2443:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-60039-1/sources/try#99a7498759a22b5684caf798a98b7e90ad9d2443/reg/melody/0.2.2:/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" "+99a7498759a22b5684caf798a98b7e90ad9d2443-alt" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] 1a5820aa598ade8e051690533049cbf092ca2cba1512ea33b0a963d6cccf62ff
[INFO] running `"docker" "start" "-a" "1a5820aa598ade8e051690533049cbf092ca2cba1512ea33b0a963d6cccf62ff"`
[INFO] [stderr]     Checking rodio v0.8.1
[INFO] [stderr]     Checking melody v0.2.2 (/opt/crater/workdir)
[INFO] [stderr] warning: the item `mp3_metadata` is imported redundantly
[INFO] [stderr]   --> src/song.rs:98:13
[INFO] [stderr]    |
[INFO] [stderr] 98 |         use mp3_metadata;
[INFO] [stderr]    |             ^^^^^^^^^^^^
[INFO] [stderr]    | 
[INFO] [stderr]   ::: src/lib.rs:28:1
[INFO] [stderr]    |
[INFO] [stderr] 28 | extern crate mp3_metadata;
[INFO] [stderr]    | -------------------------- the item `mp3_metadata` is already imported here
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_imports)] on by default
[INFO] [stderr] 
[INFO] [stderr] error: variable does not need to be mutable
[INFO] [stderr]    --> src/utils.rs:200:13
[INFO] [stderr]     |
[INFO] [stderr] 200 |         let mut tracks = pl.tracks;
[INFO] [stderr]     |             ----^^^^^^
[INFO] [stderr]     |             |
[INFO] [stderr]     |             help: remove this `mut`
[INFO] [stderr]     |
[INFO] [stderr] note: lint level defined here
[INFO] [stderr]    --> src/lib.rs:17:5
[INFO] [stderr]     |
[INFO] [stderr] 17  |     unused_mut,
[INFO] [stderr]     |     ^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to previous error
[INFO] [stderr] 
[INFO] [stderr] error: Could not compile `melody`.
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] warning: the item `mp3_metadata` is imported redundantly
[INFO] [stderr]   --> src/song.rs:98:13
[INFO] [stderr]    |
[INFO] [stderr] 98 |         use mp3_metadata;
[INFO] [stderr]    |             ^^^^^^^^^^^^
[INFO] [stderr]    | 
[INFO] [stderr]   ::: src/lib.rs:28:1
[INFO] [stderr]    |
[INFO] [stderr] 28 | extern crate mp3_metadata;
[INFO] [stderr]    | -------------------------- the item `mp3_metadata` is already imported here
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_imports)] on by default
[INFO] [stderr] 
[INFO] [stderr] error: variable does not need to be mutable
[INFO] [stderr]    --> src/utils.rs:200:13
[INFO] [stderr]     |
[INFO] [stderr] 200 |         let mut tracks = pl.tracks;
[INFO] [stderr]     |             ----^^^^^^
[INFO] [stderr]     |             |
[INFO] [stderr]     |             help: remove this `mut`
[INFO] [stderr]     |
[INFO] [stderr] note: lint level defined here
[INFO] [stderr]    --> src/lib.rs:17:5
[INFO] [stderr]     |
[INFO] [stderr] 17  |     unused_mut,
[INFO] [stderr]     |     ^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to previous error
[INFO] [stderr] 
[INFO] [stderr] error: Could not compile `melody`.
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `"docker" "inspect" "1a5820aa598ade8e051690533049cbf092ca2cba1512ea33b0a963d6cccf62ff"`
[INFO] running `"docker" "rm" "-f" "1a5820aa598ade8e051690533049cbf092ca2cba1512ea33b0a963d6cccf62ff"`
[INFO] [stdout] 1a5820aa598ade8e051690533049cbf092ca2cba1512ea33b0a963d6cccf62ff