[INFO] updating cached repository https://github.com/ther0n/music_sync
[INFO] running `"git" "-c" "credential.helper=" "-c" "credential.helper=/mnt/big/crater/work/cargo-home/bin/git-credential-null" "-c" "remote.origin.fetch=refs/heads/*:refs/heads/*" "fetch" "origin" "--force" "--prune"`
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 51ca6d6b42aa6a4f2a025afde7d24adebcdda1a4
[INFO] checking ther0n/music_sync against master#c9edc02e8320a9e5799d185910ece7d491f524e6 for pr-64398
[INFO] running `"git" "clone" "work/cache/git-repos/https%3A%2F%2Fgithub.com%2Fther0n%2Fmusic_sync" "work/builds/worker-2/source"`
[INFO] [stderr] Cloning into 'work/builds/worker-2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/ther0n/music_sync on toolchain c9edc02e8320a9e5799d185910ece7d491f524e6-alt
[INFO] running `"/mnt/big/crater/work/cargo-home/bin/cargo" "+c9edc02e8320a9e5799d185910ece7d491f524e6-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking git repo https://github.com/ther0n/music_sync
[INFO] finished tweaking git repo https://github.com/ther0n/music_sync
[INFO] tweaked toml for git repo https://github.com/ther0n/music_sync written to work/builds/worker-2/source/Cargo.toml
[INFO] crate git repo https://github.com/ther0n/music_sync already has a lockfile, it will not be regenerated
[INFO] running `"/mnt/big/crater/work/cargo-home/bin/cargo" "+c9edc02e8320a9e5799d185910ece7d491f524e6-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/mnt/big/crater/work/builds/worker-2/source:/opt/rustwide/workdir:ro,Z" "-v" "/mnt/big/crater/work/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+c9edc02e8320a9e5799d185910ece7d491f524e6-alt" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] b1ac06fc4b235cf4b7228dc5f48e83e51e0c11729aa28f28f02cc871c76764e9
[INFO] running `"docker" "start" "-a" "b1ac06fc4b235cf4b7228dc5f48e83e51e0c11729aa28f28f02cc871c76764e9"`
[INFO] [stderr]     Checking music_sync v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/main.rs:72:13
[INFO] [stderr]    |
[INFO] [stderr] 72 |         let mut num_files_pre_scan = num_files_found; // Save the number of files before scan to later display number of new files found with pattern
[INFO] [stderr]    |             ----^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |             |
[INFO] [stderr]    |             help: remove this `mut`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_mut)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/main.rs:72:13
[INFO] [stderr]    |
[INFO] [stderr] 72 |         let mut num_files_pre_scan = num_files_found; // Save the number of files before scan to later display number of new files found with pattern
[INFO] [stderr]    |             ----^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |             |
[INFO] [stderr]    |             help: remove this `mut`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_mut)]` on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.15s
[INFO] running `"docker" "inspect" "b1ac06fc4b235cf4b7228dc5f48e83e51e0c11729aa28f28f02cc871c76764e9"`
[INFO] running `"docker" "rm" "-f" "b1ac06fc4b235cf4b7228dc5f48e83e51e0c11729aa28f28f02cc871c76764e9"`
[INFO] [stdout] b1ac06fc4b235cf4b7228dc5f48e83e51e0c11729aa28f28f02cc871c76764e9