[INFO] cloning repository https://github.com/ryan28561/rust-music
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/ryan28561/rust-music" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fryan28561%2Frust-music", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fryan28561%2Frust-music'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 409bb28a409433534c054a085f9255422d1eb8bb
[INFO] checking ryan28561/rust-music against master#4d0dd02ee07bddad9136f95c9f7846ebf3eb3fc5 for pr-81174
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fryan28561%2Frust-music" "/workspace/builds/worker-12/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-12/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/ryan28561/rust-music on toolchain 4d0dd02ee07bddad9136f95c9f7846ebf3eb3fc5
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+4d0dd02ee07bddad9136f95c9f7846ebf3eb3fc5" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/ryan28561/rust-music
[INFO] finished tweaking git repo https://github.com/ryan28561/rust-music
[INFO] tweaked toml for git repo https://github.com/ryan28561/rust-music written to /workspace/builds/worker-12/source/Cargo.toml
[INFO] crate git repo https://github.com/ryan28561/rust-music already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+4d0dd02ee07bddad9136f95c9f7846ebf3eb3fc5" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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" "rustops/crates-build-env@sha256:21f1ed92105a0ef9b0d27ad8bdeb7f36f9f01ac17fffe3a3f3dc5241fc25d8f4" "/opt/rustwide/cargo-home/bin/cargo" "+4d0dd02ee07bddad9136f95c9f7846ebf3eb3fc5" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] fff114a0c4d3f33f470c65da79904dda1b0bcc7822385b359753fcb5d146a3d4
[INFO] running `Command { std: "docker" "start" "-a" "fff114a0c4d3f33f470c65da79904dda1b0bcc7822385b359753fcb5d146a3d4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "fff114a0c4d3f33f470c65da79904dda1b0bcc7822385b359753fcb5d146a3d4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "fff114a0c4d3f33f470c65da79904dda1b0bcc7822385b359753fcb5d146a3d4", kill_on_drop: false }`
[INFO] [stdout] fff114a0c4d3f33f470c65da79904dda1b0bcc7822385b359753fcb5d146a3d4
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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" "rustops/crates-build-env@sha256:21f1ed92105a0ef9b0d27ad8bdeb7f36f9f01ac17fffe3a3f3dc5241fc25d8f4" "/opt/rustwide/cargo-home/bin/cargo" "+4d0dd02ee07bddad9136f95c9f7846ebf3eb3fc5" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 112d9412f4db7d98a7e363c028b29f7b7e7f63616903d088f68f02950f6eb600
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "112d9412f4db7d98a7e363c028b29f7b7e7f63616903d088f68f02950f6eb600", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.18
[INFO] [stderr]    Compiling syn v1.0.31
[INFO] [stderr]     Checking getrandom v0.1.14
[INFO] [stderr]     Checking fluidsynth v0.0.1 (https://github.com/scholtzan/rust-fluidsynth#5a34029c)
[INFO] [stderr]     Checking rand_core v0.5.1
[INFO] [stderr]     Checking rand_chacha v0.2.2
[INFO] [stderr]     Checking rand v0.7.3
[INFO] [stderr]    Compiling quote v1.0.7
[INFO] [stderr]    Compiling random-number-macro-impl v0.1.0
[INFO] [stderr]     Checking random-number v0.1.1
[INFO] [stderr]     Checking random-pick v1.2.9
[INFO] [stderr]     Checking rustmusic v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: constant is never used: `MINOR`
[INFO] [stdout]  --> src/scale.rs:8:1
[INFO] [stdout]   |
[INFO] [stdout] 8 | pub const MINOR: [i32; 7] = [0, 2, 3, 5, 7, 8, 10];
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant is never used: `HARMONIC_MINOR`
[INFO] [stdout]  --> src/scale.rs:9:1
[INFO] [stdout]   |
[INFO] [stdout] 9 | pub const HARMONIC_MINOR: [i32; 7] = [2, 3, 5, 7, 8, 11, 12];
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant is never used: `NINE`
[INFO] [stdout]  --> src/chord.rs:8:1
[INFO] [stdout]   |
[INFO] [stdout] 8 | pub const NINE: [i32; 4] = [2, 4, 6, 8];
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant is never used: `ELEVEN`
[INFO] [stdout]  --> src/chord.rs:9:1
[INFO] [stdout]   |
[INFO] [stdout] 9 | pub const ELEVEN: [i32; 5] = [2, 4, 6, 8, 10];
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant is never used: `THIRTEEN`
[INFO] [stdout]   --> src/chord.rs:10:1
[INFO] [stdout]    |
[INFO] [stdout] 10 | pub const THIRTEEN: [i32; 6] = [2, 4, 6, 8, 10, 12];
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 5 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant is never used: `MINOR`
[INFO] [stdout]  --> src/scale.rs:8:1
[INFO] [stdout]   |
[INFO] [stdout] 8 | pub const MINOR: [i32; 7] = [0, 2, 3, 5, 7, 8, 10];
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant is never used: `HARMONIC_MINOR`
[INFO] [stdout]  --> src/scale.rs:9:1
[INFO] [stdout]   |
[INFO] [stdout] 9 | pub const HARMONIC_MINOR: [i32; 7] = [2, 3, 5, 7, 8, 11, 12];
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant is never used: `NINE`
[INFO] [stdout]  --> src/chord.rs:8:1
[INFO] [stdout]   |
[INFO] [stdout] 8 | pub const NINE: [i32; 4] = [2, 4, 6, 8];
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant is never used: `ELEVEN`
[INFO] [stdout]  --> src/chord.rs:9:1
[INFO] [stdout]   |
[INFO] [stdout] 9 | pub const ELEVEN: [i32; 5] = [2, 4, 6, 8, 10];
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant is never used: `THIRTEEN`
[INFO] [stdout]   --> src/chord.rs:10:1
[INFO] [stdout]    |
[INFO] [stdout] 10 | pub const THIRTEEN: [i32; 6] = [2, 4, 6, 8, 10, 12];
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 5 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 21.94s
[INFO] running `Command { std: "docker" "inspect" "112d9412f4db7d98a7e363c028b29f7b7e7f63616903d088f68f02950f6eb600", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "112d9412f4db7d98a7e363c028b29f7b7e7f63616903d088f68f02950f6eb600", kill_on_drop: false }`
[INFO] [stdout] 112d9412f4db7d98a7e363c028b29f7b7e7f63616903d088f68f02950f6eb600