[INFO] cloning repository https://github.com/bencecile/SoundGenerator
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/bencecile/SoundGenerator" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fbencecile%2FSoundGenerator", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fbencecile%2FSoundGenerator'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 3abd4777568ad9ca8caf4954427678a2d35afa38
[INFO] checking bencecile/SoundGenerator against beta for pr-78714
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fbencecile%2FSoundGenerator" "/workspace/builds/worker-4/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/bencecile/SoundGenerator on toolchain beta
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/bencecile/SoundGenerator
[INFO] finished tweaking git repo https://github.com/bencecile/SoundGenerator
[INFO] tweaked toml for git repo https://github.com/bencecile/SoundGenerator written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] crate git repo https://github.com/bencecile/SoundGenerator already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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@sha256:6eabd152ff4036248d66efda456a36cb33d24b7291b33f25f75140726c88da35" "/opt/rustwide/cargo-home/bin/cargo" "+beta" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 1cb8e162f60b87f2cab56e5f2ba36cb993c2a9f6c87950bb2a7c06970dec9550
[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" "1cb8e162f60b87f2cab56e5f2ba36cb993c2a9f6c87950bb2a7c06970dec9550", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "1cb8e162f60b87f2cab56e5f2ba36cb993c2a9f6c87950bb2a7c06970dec9550", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1cb8e162f60b87f2cab56e5f2ba36cb993c2a9f6c87950bb2a7c06970dec9550", kill_on_drop: false }`
[INFO] [stdout] 1cb8e162f60b87f2cab56e5f2ba36cb993c2a9f6c87950bb2a7c06970dec9550
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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@sha256:6eabd152ff4036248d66efda456a36cb33d24b7291b33f25f75140726c88da35" "/opt/rustwide/cargo-home/bin/cargo" "+beta" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 343be3c952892e3ebdcc83058c5d919c4697e2cac9b547875fd43cb46f6717a0
[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" "343be3c952892e3ebdcc83058c5d919c4697e2cac9b547875fd43cb46f6717a0", kill_on_drop: false }`
[INFO] [stderr]    Compiling num-traits v0.2.12
[INFO] [stderr]    Compiling num-integer v0.1.43
[INFO] [stderr]    Compiling num-bigint v0.3.0
[INFO] [stderr]    Compiling num-rational v0.3.0
[INFO] [stderr]     Checking sound_generator v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `Sample`
[INFO] [stdout]  --> src/instruments.rs:5:30
[INFO] [stdout]   |
[INFO] [stdout] 5 |     sampling::{MixerSamples, Sample},
[INFO] [stdout]   |                              ^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `Sample`
[INFO] [stdout]  --> src/instruments.rs:5:30
[INFO] [stdout]   |
[INFO] [stdout] 5 |     sampling::{MixerSamples, Sample},
[INFO] [stdout]   |                              ^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `new`
[INFO] [stdout]   --> src/instruments/basic_waves.rs:34:12
[INFO] [stdout]    |
[INFO] [stdout] 34 |     pub fn new() -> SquareWave {
[INFO] [stdout]    |            ^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Chord2`
[INFO] [stdout]    --> src/song.rs:259:5
[INFO] [stdout]     |
[INFO] [stdout] 259 |     Chord2(NoteName, NoteName),
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Chord4`
[INFO] [stdout]    --> src/song.rs:261:5
[INFO] [stdout]     |
[INFO] [stdout] 261 |     Chord4(NoteName, NoteName, NoteName, NoteName),
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Chord5`
[INFO] [stdout]    --> src/song.rs:262:5
[INFO] [stdout]     |
[INFO] [stdout] 262 |     Chord5(NoteName, NoteName, NoteName, NoteName, NoteName),
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Percussion`
[INFO] [stdout]    --> src/song.rs:263:5
[INFO] [stdout]     |
[INFO] [stdout] 263 |     Percussion,
[INFO] [stdout]     |     ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Rest`
[INFO] [stdout]    --> src/song.rs:264:5
[INFO] [stdout]     |
[INFO] [stdout] 264 |     Rest,
[INFO] [stdout]     |     ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `DFlat`
[INFO] [stdout]    --> src/song.rs:271:5
[INFO] [stdout]     |
[INFO] [stdout] 271 |     DFlat(i8),
[INFO] [stdout]     |     ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `D`
[INFO] [stdout]    --> src/song.rs:272:5
[INFO] [stdout]     |
[INFO] [stdout] 272 |     D(i8),
[INFO] [stdout]     |     ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `EFlat`
[INFO] [stdout]    --> src/song.rs:273:5
[INFO] [stdout]     |
[INFO] [stdout] 273 |     EFlat(i8),
[INFO] [stdout]     |     ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `GFlat`
[INFO] [stdout]    --> src/song.rs:276:5
[INFO] [stdout]     |
[INFO] [stdout] 276 |     GFlat(i8),
[INFO] [stdout]     |     ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `AFlat`
[INFO] [stdout]    --> src/song.rs:278:5
[INFO] [stdout]     |
[INFO] [stdout] 278 |     AFlat(i8),
[INFO] [stdout]     |     ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `BFlat`
[INFO] [stdout]    --> src/song.rs:280:5
[INFO] [stdout]     |
[INFO] [stdout] 280 |     BFlat(i8),
[INFO] [stdout]     |     ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `B`
[INFO] [stdout]    --> src/song.rs:281:5
[INFO] [stdout]     |
[INFO] [stdout] 281 |     B(i8),
[INFO] [stdout]     |     ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 14 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `new`
[INFO] [stdout]   --> src/instruments/basic_waves.rs:34:12
[INFO] [stdout]    |
[INFO] [stdout] 34 |     pub fn new() -> SquareWave {
[INFO] [stdout]    |            ^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Chord2`
[INFO] [stdout]    --> src/song.rs:259:5
[INFO] [stdout]     |
[INFO] [stdout] 259 |     Chord2(NoteName, NoteName),
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Chord4`
[INFO] [stdout]    --> src/song.rs:261:5
[INFO] [stdout]     |
[INFO] [stdout] 261 |     Chord4(NoteName, NoteName, NoteName, NoteName),
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Chord5`
[INFO] [stdout]    --> src/song.rs:262:5
[INFO] [stdout]     |
[INFO] [stdout] 262 |     Chord5(NoteName, NoteName, NoteName, NoteName, NoteName),
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Percussion`
[INFO] [stdout]    --> src/song.rs:263:5
[INFO] [stdout]     |
[INFO] [stdout] 263 |     Percussion,
[INFO] [stdout]     |     ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Rest`
[INFO] [stdout]    --> src/song.rs:264:5
[INFO] [stdout]     |
[INFO] [stdout] 264 |     Rest,
[INFO] [stdout]     |     ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `DFlat`
[INFO] [stdout]    --> src/song.rs:271:5
[INFO] [stdout]     |
[INFO] [stdout] 271 |     DFlat(i8),
[INFO] [stdout]     |     ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `D`
[INFO] [stdout]    --> src/song.rs:272:5
[INFO] [stdout]     |
[INFO] [stdout] 272 |     D(i8),
[INFO] [stdout]     |     ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `EFlat`
[INFO] [stdout]    --> src/song.rs:273:5
[INFO] [stdout]     |
[INFO] [stdout] 273 |     EFlat(i8),
[INFO] [stdout]     |     ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `GFlat`
[INFO] [stdout]    --> src/song.rs:276:5
[INFO] [stdout]     |
[INFO] [stdout] 276 |     GFlat(i8),
[INFO] [stdout]     |     ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `AFlat`
[INFO] [stdout]    --> src/song.rs:278:5
[INFO] [stdout]     |
[INFO] [stdout] 278 |     AFlat(i8),
[INFO] [stdout]     |     ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `BFlat`
[INFO] [stdout]    --> src/song.rs:280:5
[INFO] [stdout]     |
[INFO] [stdout] 280 |     BFlat(i8),
[INFO] [stdout]     |     ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `B`
[INFO] [stdout]    --> src/song.rs:281:5
[INFO] [stdout]     |
[INFO] [stdout] 281 |     B(i8),
[INFO] [stdout]     |     ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 14 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 8.27s
[INFO] running `Command { std: "docker" "inspect" "343be3c952892e3ebdcc83058c5d919c4697e2cac9b547875fd43cb46f6717a0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "343be3c952892e3ebdcc83058c5d919c4697e2cac9b547875fd43cb46f6717a0", kill_on_drop: false }`
[INFO] [stdout] 343be3c952892e3ebdcc83058c5d919c4697e2cac9b547875fd43cb46f6717a0