[INFO] cloning repository https://github.com/ther0n/music_sync
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/ther0n/music_sync" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fther0n%2Fmusic_sync", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fther0n%2Fmusic_sync'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 51ca6d6b42aa6a4f2a025afde7d24adebcdda1a4
[INFO] testing ther0n/music_sync against beta-2022-04-10 for beta-1.61-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fther0n%2Fmusic_sync" "/workspace/builds/worker-15/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-15/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/ther0n/music_sync on toolchain beta-2022-04-10
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-04-10" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[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 /workspace/builds/worker-15/source/Cargo.toml
[INFO] crate git repo https://github.com/ther0n/music_sync already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-04-10" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-15/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-15/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-04-10" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 7cbbab1b4d551de0507f6ecd3edfe8cb1914cebdfe34c59cea5c23b2dc440390
[INFO] running `Command { std: "docker" "start" "-a" "7cbbab1b4d551de0507f6ecd3edfe8cb1914cebdfe34c59cea5c23b2dc440390", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "7cbbab1b4d551de0507f6ecd3edfe8cb1914cebdfe34c59cea5c23b2dc440390", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7cbbab1b4d551de0507f6ecd3edfe8cb1914cebdfe34c59cea5c23b2dc440390", kill_on_drop: false }`
[INFO] [stdout] 7cbbab1b4d551de0507f6ecd3edfe8cb1914cebdfe34c59cea5c23b2dc440390
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-15/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-15/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-04-10" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 016c698cdb59021b7b680031b7614bf496e3dc2ef1b296fe965fc3123c3e2501
[INFO] running `Command { std: "docker" "start" "-a" "016c698cdb59021b7b680031b7614bf496e3dc2ef1b296fe965fc3123c3e2501", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling linked-hash-map v0.5.1
[INFO] [stderr]    Compiling glob v0.2.11
[INFO] [stderr]    Compiling yaml-rust v0.4.0
[INFO] [stderr]    Compiling music_sync v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/main.rs:72:13
[INFO] [stdout]    |
[INFO] [stdout] 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 wi...
[INFO] [stdout]    |           ----^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |           |
[INFO] [stdout]    |           help: remove this `mut`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1m 41s
[INFO] running `Command { std: "docker" "inspect" "016c698cdb59021b7b680031b7614bf496e3dc2ef1b296fe965fc3123c3e2501", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "016c698cdb59021b7b680031b7614bf496e3dc2ef1b296fe965fc3123c3e2501", kill_on_drop: false }`
[INFO] [stdout] 016c698cdb59021b7b680031b7614bf496e3dc2ef1b296fe965fc3123c3e2501
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-15/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-15/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-04-10" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 9eddcaa4aab50d61d71892861f450d5627e3fbc5fd473bca02297c96a7ab8a22
[INFO] running `Command { std: "docker" "start" "-a" "9eddcaa4aab50d61d71892861f450d5627e3fbc5fd473bca02297c96a7ab8a22", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling music_sync v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/main.rs:72:13
[INFO] [stdout]    |
[INFO] [stdout] 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 wi...
[INFO] [stdout]    |           ----^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |           |
[INFO] [stdout]    |           help: remove this `mut`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 7.52s
[INFO] [stderr]   Executable unittests src/main.rs (/opt/rustwide/target/debug/deps/music_sync-4e0674c9d712f319)
[INFO] running `Command { std: "docker" "inspect" "9eddcaa4aab50d61d71892861f450d5627e3fbc5fd473bca02297c96a7ab8a22", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9eddcaa4aab50d61d71892861f450d5627e3fbc5fd473bca02297c96a7ab8a22", kill_on_drop: false }`
[INFO] [stdout] 9eddcaa4aab50d61d71892861f450d5627e3fbc5fd473bca02297c96a7ab8a22
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-15/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-15/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-04-10" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 7774ef90fdf562b4ef4d361c9184dbdec65b23dd6bdac7431ec53e0a72afea57
[INFO] running `Command { std: "docker" "start" "-a" "7774ef90fdf562b4ef4d361c9184dbdec65b23dd6bdac7431ec53e0a72afea57", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[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 wi...
[INFO] [stdout] 
[INFO] [stderr]    |           ----^^^^^^^^^^^^^^^^^^
[INFO] [stdout] running 0 tests
[INFO] [stderr]    |           |
[INFO] [stdout] 
[INFO] [stderr]    |           help: remove this `mut`
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stderr]    |
[INFO] [stdout] 
[INFO] [stderr]    = note: `#[warn(unused_mut)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: `music_sync` (bin "music_sync" test) generated 1 warning
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 13.66s
[INFO] [stderr]      Running unittests src/main.rs (/opt/rustwide/target/debug/deps/music_sync-4e0674c9d712f319)
[INFO] running `Command { std: "docker" "inspect" "7774ef90fdf562b4ef4d361c9184dbdec65b23dd6bdac7431ec53e0a72afea57", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7774ef90fdf562b4ef4d361c9184dbdec65b23dd6bdac7431ec53e0a72afea57", kill_on_drop: false }`
[INFO] [stdout] 7774ef90fdf562b4ef4d361c9184dbdec65b23dd6bdac7431ec53e0a72afea57