[INFO] cloning repository https://github.com/adoroburrito/music-theory-helper
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/adoroburrito/music-theory-helper" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fadoroburrito%2Fmusic-theory-helper", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fadoroburrito%2Fmusic-theory-helper'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 5319703a3ac73f8a4890d442f8a6fe5490c88d8c
[INFO] checking adoroburrito/music-theory-helper against master#18bd2dd5cda08b09ace6e37c1a0312e9b2bb4beb for pr-96970
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fadoroburrito%2Fmusic-theory-helper" "/workspace/builds/worker-2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/adoroburrito/music-theory-helper on toolchain 18bd2dd5cda08b09ace6e37c1a0312e9b2bb4beb
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+18bd2dd5cda08b09ace6e37c1a0312e9b2bb4beb" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/adoroburrito/music-theory-helper
[INFO] finished tweaking git repo https://github.com/adoroburrito/music-theory-helper
[INFO] tweaked toml for git repo https://github.com/adoroburrito/music-theory-helper written to /workspace/builds/worker-2/source/Cargo.toml
[INFO] crate git repo https://github.com/adoroburrito/music-theory-helper already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+18bd2dd5cda08b09ace6e37c1a0312e9b2bb4beb" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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:d190cb871061d98bc6d0581d85cb2ecb09a0f8a142ba5463de30be9999fc3251" "/opt/rustwide/cargo-home/bin/cargo" "+18bd2dd5cda08b09ace6e37c1a0312e9b2bb4beb" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 469eab30b967f2f3c9533e161b014b5b565296df2cce3e347b0f7fcb00f0a3c9
[INFO] running `Command { std: "docker" "start" "-a" "469eab30b967f2f3c9533e161b014b5b565296df2cce3e347b0f7fcb00f0a3c9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "469eab30b967f2f3c9533e161b014b5b565296df2cce3e347b0f7fcb00f0a3c9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "469eab30b967f2f3c9533e161b014b5b565296df2cce3e347b0f7fcb00f0a3c9", kill_on_drop: false }`
[INFO] [stdout] 469eab30b967f2f3c9533e161b014b5b565296df2cce3e347b0f7fcb00f0a3c9
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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=forbid" "-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:d190cb871061d98bc6d0581d85cb2ecb09a0f8a142ba5463de30be9999fc3251" "/opt/rustwide/cargo-home/bin/cargo" "+18bd2dd5cda08b09ace6e37c1a0312e9b2bb4beb" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 33a7dd59667470c54c9a6f1d974c9e485fe84555a2479705e7df4d76033bf2af
[INFO] running `Command { std: "docker" "start" "-a" "33a7dd59667470c54c9a6f1d974c9e485fe84555a2479705e7df4d76033bf2af", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Checking music-theory-helper v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: associated function is never used: `add_tone`
[INFO] [stdout]   --> src/main.rs:55:8
[INFO] [stdout]    |
[INFO] [stdout] 55 |     fn add_tone(&mut self) -> &SingleNote {
[INFO] [stdout]    |        ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `add_semitone`
[INFO] [stdout]   --> src/main.rs:73:8
[INFO] [stdout]    |
[INFO] [stdout] 73 |     fn add_semitone(&mut self) -> &SingleNote {
[INFO] [stdout]    |        ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `add_tone`
[INFO] [stdout]   --> src/main.rs:55:8
[INFO] [stdout]    |
[INFO] [stdout] 55 |     fn add_tone(&mut self) -> &SingleNote {
[INFO] [stdout]    |        ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `add_semitone`
[INFO] [stdout]   --> src/main.rs:73:8
[INFO] [stdout]    |
[INFO] [stdout] 73 |     fn add_semitone(&mut self) -> &SingleNote {
[INFO] [stdout]    |        ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 3.29s
[INFO] running `Command { std: "docker" "inspect" "33a7dd59667470c54c9a6f1d974c9e485fe84555a2479705e7df4d76033bf2af", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "33a7dd59667470c54c9a6f1d974c9e485fe84555a2479705e7df4d76033bf2af", kill_on_drop: false }`
[INFO] [stdout] 33a7dd59667470c54c9a6f1d974c9e485fe84555a2479705e7df4d76033bf2af