[INFO] cloning repository https://github.com/jacksonloper/rockplayer
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/jacksonloper/rockplayer" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjacksonloper%2Frockplayer", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjacksonloper%2Frockplayer'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 923eb9b300eac4fb44d210bdcc1f340404d2c232
[INFO] testing jacksonloper/rockplayer against try#0abe69e6c16114311cc2700e972492e64d69c28f for pr-154065
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjacksonloper%2Frockplayer" "/workspace/builds/worker-2-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/jacksonloper/rockplayer
[INFO] finished tweaking git repo https://github.com/jacksonloper/rockplayer
[INFO] tweaked toml for git repo https://github.com/jacksonloper/rockplayer written to /workspace/builds/worker-2-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/jacksonloper/rockplayer on toolchain 0abe69e6c16114311cc2700e972492e64d69c28f
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+0abe69e6c16114311cc2700e972492e64d69c28f" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/jacksonloper/rockplayer already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+0abe69e6c16114311cc2700e972492e64d69c28f" "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-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+0abe69e6c16114311cc2700e972492e64d69c28f" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] dee90c53d550cd6eff8e0a9342579159507c2a93341a4d6490086a1721c45dbf
[INFO] running `Command { std: "docker" "start" "-a" "dee90c53d550cd6eff8e0a9342579159507c2a93341a4d6490086a1721c45dbf", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "dee90c53d550cd6eff8e0a9342579159507c2a93341a4d6490086a1721c45dbf", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "dee90c53d550cd6eff8e0a9342579159507c2a93341a4d6490086a1721c45dbf", kill_on_drop: false }`
[INFO] [stdout] dee90c53d550cd6eff8e0a9342579159507c2a93341a4d6490086a1721c45dbf
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/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" "RUSTDOCFLAGS=--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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+0abe69e6c16114311cc2700e972492e64d69c28f" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] a2be70dff2dfcfa59d59638c0fb58494517c96a7771508d84e69b43055ac3dd5
[INFO] running `Command { std: "docker" "start" "-a" "a2be70dff2dfcfa59d59638c0fb58494517c96a7771508d84e69b43055ac3dd5", kill_on_drop: false }`
[INFO] [stderr]    Compiling find-msvc-tools v0.1.8
[INFO] [stderr]    Compiling version-compare v0.1.1
[INFO] [stderr]    Compiling libc v0.2.180
[INFO] [stderr]    Compiling sdl2 v0.36.0
[INFO] [stderr]    Compiling cc v1.2.53
[INFO] [stderr]    Compiling cmake v0.1.57
[INFO] [stderr]    Compiling sdl2-sys v0.36.0
[INFO] [stderr]    Compiling rockplayer v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/main.rs:451:9
[INFO] [stdout]     |
[INFO] [stdout] 451 |     let mut test_output_device: Option<AudioDevice<SinWaveCallback>> = None;
[INFO] [stdout]     |         ----^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |         |
[INFO] [stdout]     |         help: remove this `mut`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_mut)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/main.rs:453:9
[INFO] [stdout]     |
[INFO] [stdout] 453 |     let mut test_input_device: Option<AudioDevice<AmplitudeCallback>> = None;
[INFO] [stdout]     |         ----^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |         |
[INFO] [stdout]     |         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `test_amplitude`
[INFO] [stdout]    --> src/main.rs:449:9
[INFO] [stdout]     |
[INFO] [stdout] 449 |     let test_amplitude = Arc::new(Mutex::new(0.0f32));
[INFO] [stdout]     |         ^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_test_amplitude`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `spec_device` is assigned to, but never used
[INFO] [stdout]    --> src/main.rs:459:9
[INFO] [stdout]     |
[INFO] [stdout] 459 |     let mut spec_device: Option<AudioDevice<SpectrogramCallback>> = None;
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: consider using `_spec_device` instead
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `spec_device` is never read
[INFO] [stdout]    --> src/main.rs:497:33
[INFO] [stdout]     |
[INFO] [stdout] 497 | ...                   spec_device = None;
[INFO] [stdout]     |                       ^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: maybe it is overwritten before being read?
[INFO] [stdout]     = note: `#[warn(unused_assignments)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `spec_device` is never read
[INFO] [stdout]    --> src/main.rs:550:33
[INFO] [stdout]     |
[INFO] [stdout] 550 | ...                   spec_device = None;
[INFO] [stdout]     |                       ^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `spec_device` is never read
[INFO] [stdout]    --> src/main.rs:607:33
[INFO] [stdout]     |
[INFO] [stdout] 607 | ...                   spec_device = None;
[INFO] [stdout]     |                       ^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `spec_device` is never read
[INFO] [stdout]    --> src/main.rs:638:41
[INFO] [stdout]     |
[INFO] [stdout] 638 | ...                   spec_device = Some(device);
[INFO] [stdout]     |                       ^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `spec_device` is never read
[INFO] [stdout]    --> src/main.rs:616:33
[INFO] [stdout]     |
[INFO] [stdout] 616 | ...                   spec_device = None;
[INFO] [stdout]     |                       ^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `spec_device` is never read
[INFO] [stdout]    --> src/main.rs:652:33
[INFO] [stdout]     |
[INFO] [stdout] 652 | ...                   spec_device = None;
[INFO] [stdout]     |                       ^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `spec_device` is never read
[INFO] [stdout]    --> src/main.rs:663:33
[INFO] [stdout]     |
[INFO] [stdout] 663 | ...                   spec_device = None;
[INFO] [stdout]     |                       ^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `spec_device` is never read
[INFO] [stdout]    --> src/main.rs:676:33
[INFO] [stdout]     |
[INFO] [stdout] 676 | ...                   spec_device = None;
[INFO] [stdout]     |                       ^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `spec_device` is never read
[INFO] [stdout]    --> src/main.rs:687:33
[INFO] [stdout]     |
[INFO] [stdout] 687 | ...                   spec_device = None;
[INFO] [stdout]     |                       ^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `spec_device` is never read
[INFO] [stdout]    --> src/main.rs:774:33
[INFO] [stdout]     |
[INFO] [stdout] 774 | ...                   spec_device = None;
[INFO] [stdout]     |                       ^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `spec_device` is never read
[INFO] [stdout]    --> src/main.rs:826:33
[INFO] [stdout]     |
[INFO] [stdout] 826 | ...                   spec_device = None;
[INFO] [stdout]     |                       ^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `spec_device` is never read
[INFO] [stdout]    --> src/main.rs:882:33
[INFO] [stdout]     |
[INFO] [stdout] 882 | ...                   spec_device = None;
[INFO] [stdout]     |                       ^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `spec_device` is never read
[INFO] [stdout]    --> src/main.rs:928:41
[INFO] [stdout]     |
[INFO] [stdout] 928 | ...                   spec_device = Some(device);
[INFO] [stdout]     |                       ^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `spec_device` is never read
[INFO] [stdout]    --> src/main.rs:906:33
[INFO] [stdout]     |
[INFO] [stdout] 906 | ...                   spec_device = None;
[INFO] [stdout]     |                       ^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `spec_device` is never read
[INFO] [stdout]    --> src/main.rs:941:33
[INFO] [stdout]     |
[INFO] [stdout] 941 | ...                   spec_device = None;
[INFO] [stdout]     |                       ^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `spec_device` is never read
[INFO] [stdout]    --> src/main.rs:953:33
[INFO] [stdout]     |
[INFO] [stdout] 953 | ...                   spec_device = None;
[INFO] [stdout]     |                       ^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `spec_device` is never read
[INFO] [stdout]    --> src/main.rs:965:33
[INFO] [stdout]     |
[INFO] [stdout] 965 | ...                   spec_device = None;
[INFO] [stdout]     |                       ^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `spec_device` is never read
[INFO] [stdout]    --> src/main.rs:977:33
[INFO] [stdout]     |
[INFO] [stdout] 977 | ...                   spec_device = None;
[INFO] [stdout]     |                       ^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `MAX_RECORDINGS` is never used
[INFO] [stdout]   --> src/main.rs:16:7
[INFO] [stdout]    |
[INFO] [stdout] 16 | const MAX_RECORDINGS: usize = 10;
[INFO] [stdout]    |       ^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `BTN_L2` is never used
[INFO] [stdout]   --> src/main.rs:36:7
[INFO] [stdout]    |
[INFO] [stdout] 36 | const BTN_L2: u8 = 6;
[INFO] [stdout]    |       ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `BTN_R2` is never used
[INFO] [stdout]   --> src/main.rs:37:7
[INFO] [stdout]    |
[INFO] [stdout] 37 | const BTN_R2: u8 = 7;
[INFO] [stdout]    |       ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `recording_exists` is never used
[INFO] [stdout]    --> src/main.rs:307:4
[INFO] [stdout]     |
[INFO] [stdout] 307 | fn recording_exists(slot: usize) -> bool {
[INFO] [stdout]     |    ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 1m 40s
[INFO] running `Command { std: "docker" "inspect" "a2be70dff2dfcfa59d59638c0fb58494517c96a7771508d84e69b43055ac3dd5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a2be70dff2dfcfa59d59638c0fb58494517c96a7771508d84e69b43055ac3dd5", kill_on_drop: false }`
[INFO] [stdout] a2be70dff2dfcfa59d59638c0fb58494517c96a7771508d84e69b43055ac3dd5
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/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" "RUSTDOCFLAGS=--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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+0abe69e6c16114311cc2700e972492e64d69c28f" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 4de6460fa19850e9f09c34c069591825873afbd59b8ef815ae58003c8130d0c4
[INFO] running `Command { std: "docker" "start" "-a" "4de6460fa19850e9f09c34c069591825873afbd59b8ef815ae58003c8130d0c4", kill_on_drop: false }`
[INFO] [stderr]    Compiling rockplayer v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/main.rs:451:9
[INFO] [stdout]     |
[INFO] [stdout] 451 |     let mut test_output_device: Option<AudioDevice<SinWaveCallback>> = None;
[INFO] [stdout]     |         ----^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |         |
[INFO] [stdout]     |         help: remove this `mut`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_mut)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/main.rs:453:9
[INFO] [stdout]     |
[INFO] [stdout] 453 |     let mut test_input_device: Option<AudioDevice<AmplitudeCallback>> = None;
[INFO] [stdout]     |         ----^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |         |
[INFO] [stdout]     |         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `test_amplitude`
[INFO] [stdout]    --> src/main.rs:449:9
[INFO] [stdout]     |
[INFO] [stdout] 449 |     let test_amplitude = Arc::new(Mutex::new(0.0f32));
[INFO] [stdout]     |         ^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_test_amplitude`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `spec_device` is assigned to, but never used
[INFO] [stdout]    --> src/main.rs:459:9
[INFO] [stdout]     |
[INFO] [stdout] 459 |     let mut spec_device: Option<AudioDevice<SpectrogramCallback>> = None;
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: consider using `_spec_device` instead
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `spec_device` is never read
[INFO] [stdout]    --> src/main.rs:497:33
[INFO] [stdout]     |
[INFO] [stdout] 497 | ...                   spec_device = None;
[INFO] [stdout]     |                       ^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: maybe it is overwritten before being read?
[INFO] [stdout]     = note: `#[warn(unused_assignments)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `spec_device` is never read
[INFO] [stdout]    --> src/main.rs:550:33
[INFO] [stdout]     |
[INFO] [stdout] 550 | ...                   spec_device = None;
[INFO] [stdout]     |                       ^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `spec_device` is never read
[INFO] [stdout]    --> src/main.rs:607:33
[INFO] [stdout]     |
[INFO] [stdout] 607 | ...                   spec_device = None;
[INFO] [stdout]     |                       ^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `spec_device` is never read
[INFO] [stdout]    --> src/main.rs:638:41
[INFO] [stdout]     |
[INFO] [stdout] 638 | ...                   spec_device = Some(device);
[INFO] [stdout]     |                       ^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `spec_device` is never read
[INFO] [stdout]    --> src/main.rs:616:33
[INFO] [stdout]     |
[INFO] [stdout] 616 | ...                   spec_device = None;
[INFO] [stdout]     |                       ^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `spec_device` is never read
[INFO] [stdout]    --> src/main.rs:652:33
[INFO] [stdout]     |
[INFO] [stdout] 652 | ...                   spec_device = None;
[INFO] [stdout]     |                       ^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `spec_device` is never read
[INFO] [stdout]    --> src/main.rs:663:33
[INFO] [stdout]     |
[INFO] [stdout] 663 | ...                   spec_device = None;
[INFO] [stdout]     |                       ^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `spec_device` is never read
[INFO] [stdout]    --> src/main.rs:676:33
[INFO] [stdout]     |
[INFO] [stdout] 676 | ...                   spec_device = None;
[INFO] [stdout]     |                       ^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `spec_device` is never read
[INFO] [stdout]    --> src/main.rs:687:33
[INFO] [stdout]     |
[INFO] [stdout] 687 | ...                   spec_device = None;
[INFO] [stdout]     |                       ^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `spec_device` is never read
[INFO] [stdout]    --> src/main.rs:774:33
[INFO] [stdout]     |
[INFO] [stdout] 774 | ...                   spec_device = None;
[INFO] [stdout]     |                       ^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `spec_device` is never read
[INFO] [stdout]    --> src/main.rs:826:33
[INFO] [stdout]     |
[INFO] [stdout] 826 | ...                   spec_device = None;
[INFO] [stdout]     |                       ^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `spec_device` is never read
[INFO] [stdout]    --> src/main.rs:882:33
[INFO] [stdout]     |
[INFO] [stdout] 882 | ...                   spec_device = None;
[INFO] [stdout]     |                       ^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `spec_device` is never read
[INFO] [stdout]    --> src/main.rs:928:41
[INFO] [stdout]     |
[INFO] [stdout] 928 | ...                   spec_device = Some(device);
[INFO] [stdout]     |                       ^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `spec_device` is never read
[INFO] [stdout]    --> src/main.rs:906:33
[INFO] [stdout]     |
[INFO] [stdout] 906 | ...                   spec_device = None;
[INFO] [stdout]     |                       ^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `spec_device` is never read
[INFO] [stdout]    --> src/main.rs:941:33
[INFO] [stdout]     |
[INFO] [stdout] 941 | ...                   spec_device = None;
[INFO] [stdout]     |                       ^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `spec_device` is never read
[INFO] [stdout]    --> src/main.rs:953:33
[INFO] [stdout]     |
[INFO] [stdout] 953 | ...                   spec_device = None;
[INFO] [stdout]     |                       ^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `spec_device` is never read
[INFO] [stdout]    --> src/main.rs:965:33
[INFO] [stdout]     |
[INFO] [stdout] 965 | ...                   spec_device = None;
[INFO] [stdout]     |                       ^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `spec_device` is never read
[INFO] [stdout]    --> src/main.rs:977:33
[INFO] [stdout]     |
[INFO] [stdout] 977 | ...                   spec_device = None;
[INFO] [stdout]     |                       ^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `MAX_RECORDINGS` is never used
[INFO] [stdout]   --> src/main.rs:16:7
[INFO] [stdout]    |
[INFO] [stdout] 16 | const MAX_RECORDINGS: usize = 10;
[INFO] [stdout]    |       ^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `BTN_L2` is never used
[INFO] [stdout]   --> src/main.rs:36:7
[INFO] [stdout]    |
[INFO] [stdout] 36 | const BTN_L2: u8 = 6;
[INFO] [stdout]    |       ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `BTN_R2` is never used
[INFO] [stdout]   --> src/main.rs:37:7
[INFO] [stdout]    |
[INFO] [stdout] 37 | const BTN_R2: u8 = 7;
[INFO] [stdout]    |       ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `recording_exists` is never used
[INFO] [stdout]    --> src/main.rs:307:4
[INFO] [stdout]     |
[INFO] [stdout] 307 | fn recording_exists(slot: usize) -> bool {
[INFO] [stdout]     |    ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.53s
[INFO] running `Command { std: "docker" "inspect" "4de6460fa19850e9f09c34c069591825873afbd59b8ef815ae58003c8130d0c4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4de6460fa19850e9f09c34c069591825873afbd59b8ef815ae58003c8130d0c4", kill_on_drop: false }`
[INFO] [stdout] 4de6460fa19850e9f09c34c069591825873afbd59b8ef815ae58003c8130d0c4
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/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" "RUSTDOCFLAGS=--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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+0abe69e6c16114311cc2700e972492e64d69c28f" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] b484328392100a41342682fdbc49973a1fcdf76332a98f386c62831aa3b3217e
[INFO] running `Command { std: "docker" "start" "-a" "b484328392100a41342682fdbc49973a1fcdf76332a98f386c62831aa3b3217e", kill_on_drop: false }`
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/main.rs:451:9
[INFO] [stderr]     |
[INFO] [stderr] 451 |     let mut test_output_device: Option<AudioDevice<SinWaveCallback>> = None;
[INFO] [stderr]     |         ----^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |         |
[INFO] [stderr]     |         help: remove this `mut`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_mut)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/main.rs:453:9
[INFO] [stderr]     |
[INFO] [stderr] 453 |     let mut test_input_device: Option<AudioDevice<AmplitudeCallback>> = None;
[INFO] [stderr]     |         ----^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |         |
[INFO] [stderr]     |         help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `test_amplitude`
[INFO] [stderr]    --> src/main.rs:449:9
[INFO] [stderr]     |
[INFO] [stderr] 449 |     let test_amplitude = Arc::new(Mutex::new(0.0f32));
[INFO] [stderr]     |         ^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_test_amplitude`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variable `spec_device` is assigned to, but never used
[INFO] [stderr]    --> src/main.rs:459:9
[INFO] [stderr]     |
[INFO] [stderr] 459 |     let mut spec_device: Option<AudioDevice<SpectrogramCallback>> = None;
[INFO] [stderr]     |         ^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: consider using `_spec_device` instead
[INFO] [stderr] 
[INFO] [stderr] warning: value assigned to `spec_device` is never read
[INFO] [stderr]    --> src/main.rs:497:33
[INFO] [stderr]     |
[INFO] [stderr] 497 | ...                   spec_device = None;
[INFO] [stderr]     |                       ^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = help: maybe it is overwritten before being read?
[INFO] [stderr]     = note: `#[warn(unused_assignments)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: value assigned to `spec_device` is never read
[INFO] [stderr]    --> src/main.rs:550:33
[INFO] [stderr]     |
[INFO] [stderr] 550 | ...                   spec_device = None;
[INFO] [stderr]     |                       ^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = help: maybe it is overwritten before being read?
[INFO] [stderr] 
[INFO] [stderr] warning: value assigned to `spec_device` is never read
[INFO] [stderr]    --> src/main.rs:607:33
[INFO] [stderr]     |
[INFO] [stderr] 607 | ...                   spec_device = None;
[INFO] [stderr]     |                       ^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = help: maybe it is overwritten before being read?
[INFO] [stderr] 
[INFO] [stderr] warning: value assigned to `spec_device` is never read
[INFO] [stderr]    --> src/main.rs:638:41
[INFO] [stderr]     |
[INFO] [stderr] 638 | ...                   spec_device = Some(device);
[INFO] [stderr]     |                       ^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = help: maybe it is overwritten before being read?
[INFO] [stderr] 
[INFO] [stderr] warning: value assigned to `spec_device` is never read
[INFO] [stderr]    --> src/main.rs:616:33
[INFO] [stderr]     |
[INFO] [stderr] 616 | ...                   spec_device = None;
[INFO] [stderr]     |                       ^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = help: maybe it is overwritten before being read?
[INFO] [stderr] 
[INFO] [stderr] warning: value assigned to `spec_device` is never read
[INFO] [stderr]    --> src/main.rs:652:33
[INFO] [stderr]     |
[INFO] [stderr] 652 | ...                   spec_device = None;
[INFO] [stderr]     |                       ^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = help: maybe it is overwritten before being read?
[INFO] [stderr] 
[INFO] [stderr] warning: value assigned to `spec_device` is never read
[INFO] [stderr]    --> src/main.rs:663:33
[INFO] [stderr]     |
[INFO] [stderr] 663 | ...                   spec_device = None;
[INFO] [stderr]     |                       ^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = help: maybe it is overwritten before being read?
[INFO] [stderr] 
[INFO] [stderr] warning: value assigned to `spec_device` is never read
[INFO] [stderr]    --> src/main.rs:676:33
[INFO] [stderr]     |
[INFO] [stderr] 676 | ...                   spec_device = None;
[INFO] [stderr]     |                       ^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = help: maybe it is overwritten before being read?
[INFO] [stderr] 
[INFO] [stderr] warning: value assigned to `spec_device` is never read
[INFO] [stderr]    --> src/main.rs:687:33
[INFO] [stderr]     |
[INFO] [stderr] 687 | ...                   spec_device = None;
[INFO] [stderr]     |                       ^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = help: maybe it is overwritten before being read?
[INFO] [stderr] 
[INFO] [stderr] warning: value assigned to `spec_device` is never read
[INFO] [stderr]    --> src/main.rs:774:33
[INFO] [stderr]     |
[INFO] [stderr] 774 | ...                   spec_device = None;
[INFO] [stderr]     |                       ^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = help: maybe it is overwritten before being read?
[INFO] [stderr] 
[INFO] [stderr] warning: value assigned to `spec_device` is never read
[INFO] [stderr]    --> src/main.rs:826:33
[INFO] [stderr]     |
[INFO] [stderr] 826 | ...                   spec_device = None;
[INFO] [stderr]     |                       ^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = help: maybe it is overwritten before being read?
[INFO] [stderr] 
[INFO] [stderr] warning: value assigned to `spec_device` is never read
[INFO] [stderr]    --> src/main.rs:882:33
[INFO] [stderr]     |
[INFO] [stderr] 882 | ...                   spec_device = None;
[INFO] [stderr]     |                       ^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = help: maybe it is overwritten before being read?
[INFO] [stderr] 
[INFO] [stderr] warning: value assigned to `spec_device` is never read
[INFO] [stderr]    --> src/main.rs:928:41
[INFO] [stderr]     |
[INFO] [stderr] 928 | ...                   spec_device = Some(device);
[INFO] [stderr]     |                       ^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = help: maybe it is overwritten before being read?
[INFO] [stderr] 
[INFO] [stderr] warning: value assigned to `spec_device` is never read
[INFO] [stderr]    --> src/main.rs:906:33
[INFO] [stderr]     |
[INFO] [stderr] 906 | ...                   spec_device = None;
[INFO] [stderr]     |                       ^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = help: maybe it is overwritten before being read?
[INFO] [stderr] 
[INFO] [stderr] warning: value assigned to `spec_device` is never read
[INFO] [stderr]    --> src/main.rs:941:33
[INFO] [stderr]     |
[INFO] [stderr] 941 | ...                   spec_device = None;
[INFO] [stderr]     |                       ^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = help: maybe it is overwritten before being read?
[INFO] [stderr] 
[INFO] [stderr] warning: value assigned to `spec_device` is never read
[INFO] [stderr]    --> src/main.rs:953:33
[INFO] [stderr]     |
[INFO] [stderr] 953 | ...                   spec_device = None;
[INFO] [stderr]     |                       ^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = help: maybe it is overwritten before being read?
[INFO] [stderr] 
[INFO] [stderr] warning: value assigned to `spec_device` is never read
[INFO] [stderr]    --> src/main.rs:965:33
[INFO] [stderr]     |
[INFO] [stderr] 965 | ...                   spec_device = None;
[INFO] [stderr]     |                       ^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = help: maybe it is overwritten before being read?
[INFO] [stderr] 
[INFO] [stderr] warning: value assigned to `spec_device` is never read
[INFO] [stderr]    --> src/main.rs:977:33
[INFO] [stderr]     |
[INFO] [stderr] 977 | ...                   spec_device = None;
[INFO] [stderr]     |                       ^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = help: maybe it is overwritten before being read?
[INFO] [stderr] 
[INFO] [stderr] warning: constant `MAX_RECORDINGS` is never used
[INFO] [stderr]   --> src/main.rs:16:7
[INFO] [stderr]    |
[INFO] [stderr] 16 | const MAX_RECORDINGS: usize = 10;
[INFO] [stderr]    |       ^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: constant `BTN_L2` is never used
[INFO] [stderr]   --> src/main.rs:36:7
[INFO] [stderr]    |
[INFO] [stderr] 36 | const BTN_L2: u8 = 6;
[INFO] [stderr]    |       ^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: constant `BTN_R2` is never used
[INFO] [stderr]   --> src/main.rs:37:7
[INFO] [stderr]    |
[INFO] [stderr] 37 | const BTN_R2: u8 = 7;
[INFO] [stderr]    |       ^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function `recording_exists` is never used
[INFO] [stderr]    --> src/main.rs:307:4
[INFO] [stderr]     |
[INFO] [stderr] 307 | fn recording_exists(slot: usize) -> bool {
[INFO] [stderr]     |    ^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: `rockplayer` (bin "rockplayer" test) generated 26 warnings (run `cargo fix --bin "rockplayer" -p rockplayer --tests` to apply 3 suggestions)
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.06s
[INFO] [stdout] running 0 tests
[INFO] [stderr]      Running unittests src/main.rs (/opt/rustwide/target/debug/deps/rockplayer-aaca320af886b1bf)
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "b484328392100a41342682fdbc49973a1fcdf76332a98f386c62831aa3b3217e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b484328392100a41342682fdbc49973a1fcdf76332a98f386c62831aa3b3217e", kill_on_drop: false }`
[INFO] [stdout] b484328392100a41342682fdbc49973a1fcdf76332a98f386c62831aa3b3217e