[INFO] cloning repository https://github.com/oiPiSe/music_app
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/oiPiSe/music_app" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FoiPiSe%2Fmusic_app", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FoiPiSe%2Fmusic_app'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] cdb530cf8bb4413dc02b7a1f305319236eb90548
[INFO] testing oiPiSe/music_app against master#a77da2d454e6caa227a85b16410b95f93495e7e0 for pr-91031
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FoiPiSe%2Fmusic_app" "/workspace/builds/worker-7/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-7/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/oiPiSe/music_app on toolchain a77da2d454e6caa227a85b16410b95f93495e7e0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/oiPiSe/music_app
[INFO] finished tweaking git repo https://github.com/oiPiSe/music_app
[INFO] tweaked toml for git repo https://github.com/oiPiSe/music_app written to /workspace/builds/worker-7/source/Cargo.toml
[INFO] crate git repo https://github.com/oiPiSe/music_app already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "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] e9bd21d5ba0923720d806b057219ff39a75227342359c389d77683c25cacf82b
[INFO] running `Command { std: "docker" "start" "-a" "e9bd21d5ba0923720d806b057219ff39a75227342359c389d77683c25cacf82b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "e9bd21d5ba0923720d806b057219ff39a75227342359c389d77683c25cacf82b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e9bd21d5ba0923720d806b057219ff39a75227342359c389d77683c25cacf82b", kill_on_drop: false }`
[INFO] [stdout] e9bd21d5ba0923720d806b057219ff39a75227342359c389d77683c25cacf82b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 3475687c7a6d95d9340ab119a6eeac60cdb35c493d991f02102e34687aaf7f41
[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" "3475687c7a6d95d9340ab119a6eeac60cdb35c493d991f02102e34687aaf7f41", kill_on_drop: false }`
[INFO] [stderr]    Compiling hound v3.4.0
[INFO] [stderr]    Compiling music_app v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `A4`
[INFO] [stdout]  --> src/main.rs:6:6
[INFO] [stdout]   |
[INFO] [stdout] 6 | let (A4 , As4 , B4 , C5 ,Cs5 , D5 , Ds5, E5 ,F5 , Fs5 , G5 , Gs5 ,A5)
[INFO] [stdout]   |      ^^ help: if this is intentional, prefix it with an underscore: `_A4`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `As4`
[INFO] [stdout]  --> src/main.rs:6:11
[INFO] [stdout]   |
[INFO] [stdout] 6 | let (A4 , As4 , B4 , C5 ,Cs5 , D5 , Ds5, E5 ,F5 , Fs5 , G5 , Gs5 ,A5)
[INFO] [stdout]   |           ^^^ help: if this is intentional, prefix it with an underscore: `_As4`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `B4`
[INFO] [stdout]  --> src/main.rs:6:17
[INFO] [stdout]   |
[INFO] [stdout] 6 | let (A4 , As4 , B4 , C5 ,Cs5 , D5 , Ds5, E5 ,F5 , Fs5 , G5 , Gs5 ,A5)
[INFO] [stdout]   |                 ^^ help: if this is intentional, prefix it with an underscore: `_B4`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `Cs5`
[INFO] [stdout]  --> src/main.rs:6:26
[INFO] [stdout]   |
[INFO] [stdout] 6 | let (A4 , As4 , B4 , C5 ,Cs5 , D5 , Ds5, E5 ,F5 , Fs5 , G5 , Gs5 ,A5)
[INFO] [stdout]   |                          ^^^ help: if this is intentional, prefix it with an underscore: `_Cs5`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `D5`
[INFO] [stdout]  --> src/main.rs:6:32
[INFO] [stdout]   |
[INFO] [stdout] 6 | let (A4 , As4 , B4 , C5 ,Cs5 , D5 , Ds5, E5 ,F5 , Fs5 , G5 , Gs5 ,A5)
[INFO] [stdout]   |                                ^^ help: if this is intentional, prefix it with an underscore: `_D5`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `Ds5`
[INFO] [stdout]  --> src/main.rs:6:37
[INFO] [stdout]   |
[INFO] [stdout] 6 | let (A4 , As4 , B4 , C5 ,Cs5 , D5 , Ds5, E5 ,F5 , Fs5 , G5 , Gs5 ,A5)
[INFO] [stdout]   |                                     ^^^ help: if this is intentional, prefix it with an underscore: `_Ds5`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `E5`
[INFO] [stdout]  --> src/main.rs:6:42
[INFO] [stdout]   |
[INFO] [stdout] 6 | let (A4 , As4 , B4 , C5 ,Cs5 , D5 , Ds5, E5 ,F5 , Fs5 , G5 , Gs5 ,A5)
[INFO] [stdout]   |                                          ^^ help: if this is intentional, prefix it with an underscore: `_E5`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `F5`
[INFO] [stdout]  --> src/main.rs:6:46
[INFO] [stdout]   |
[INFO] [stdout] 6 | let (A4 , As4 , B4 , C5 ,Cs5 , D5 , Ds5, E5 ,F5 , Fs5 , G5 , Gs5 ,A5)
[INFO] [stdout]   |                                              ^^ help: if this is intentional, prefix it with an underscore: `_F5`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `Fs5`
[INFO] [stdout]  --> src/main.rs:6:51
[INFO] [stdout]   |
[INFO] [stdout] 6 | let (A4 , As4 , B4 , C5 ,Cs5 , D5 , Ds5, E5 ,F5 , Fs5 , G5 , Gs5 ,A5)
[INFO] [stdout]   |                                                   ^^^ help: if this is intentional, prefix it with an underscore: `_Fs5`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `Gs5`
[INFO] [stdout]  --> src/main.rs:6:62
[INFO] [stdout]   |
[INFO] [stdout] 6 | let (A4 , As4 , B4 , C5 ,Cs5 , D5 , Ds5, E5 ,F5 , Fs5 , G5 , Gs5 ,A5)
[INFO] [stdout]   |                                                              ^^^ help: if this is intentional, prefix it with an underscore: `_Gs5`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `t`
[INFO] [stdout]   --> src/main.rs:28:10
[INFO] [stdout]    |
[INFO] [stdout] 28 |      for t in (0 .. 100).map(|x| x as f32 / 44100.0) {
[INFO] [stdout]    |          ^ help: if this is intentional, prefix it with an underscore: `_t`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `A4` should have a snake case name
[INFO] [stdout]  --> src/main.rs:6:6
[INFO] [stdout]   |
[INFO] [stdout] 6 | let (A4 , As4 , B4 , C5 ,Cs5 , D5 , Ds5, E5 ,F5 , Fs5 , G5 , Gs5 ,A5)
[INFO] [stdout]   |      ^^ help: convert the identifier to snake case: `a4`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(non_snake_case)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `As4` should have a snake case name
[INFO] [stdout]  --> src/main.rs:6:11
[INFO] [stdout]   |
[INFO] [stdout] 6 | let (A4 , As4 , B4 , C5 ,Cs5 , D5 , Ds5, E5 ,F5 , Fs5 , G5 , Gs5 ,A5)
[INFO] [stdout]   |           ^^^ help: convert the identifier to snake case: `as4`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `B4` should have a snake case name
[INFO] [stdout]  --> src/main.rs:6:17
[INFO] [stdout]   |
[INFO] [stdout] 6 | let (A4 , As4 , B4 , C5 ,Cs5 , D5 , Ds5, E5 ,F5 , Fs5 , G5 , Gs5 ,A5)
[INFO] [stdout]   |                 ^^ help: convert the identifier to snake case: `b4`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `C5` should have a snake case name
[INFO] [stdout]  --> src/main.rs:6:22
[INFO] [stdout]   |
[INFO] [stdout] 6 | let (A4 , As4 , B4 , C5 ,Cs5 , D5 , Ds5, E5 ,F5 , Fs5 , G5 , Gs5 ,A5)
[INFO] [stdout]   |                      ^^ help: convert the identifier to snake case (notice the capitalization): `c5`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `Cs5` should have a snake case name
[INFO] [stdout]  --> src/main.rs:6:26
[INFO] [stdout]   |
[INFO] [stdout] 6 | let (A4 , As4 , B4 , C5 ,Cs5 , D5 , Ds5, E5 ,F5 , Fs5 , G5 , Gs5 ,A5)
[INFO] [stdout]   |                          ^^^ help: convert the identifier to snake case (notice the capitalization): `cs5`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `D5` should have a snake case name
[INFO] [stdout]  --> src/main.rs:6:32
[INFO] [stdout]   |
[INFO] [stdout] 6 | let (A4 , As4 , B4 , C5 ,Cs5 , D5 , Ds5, E5 ,F5 , Fs5 , G5 , Gs5 ,A5)
[INFO] [stdout]   |                                ^^ help: convert the identifier to snake case: `d5`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `Ds5` should have a snake case name
[INFO] [stdout]  --> src/main.rs:6:37
[INFO] [stdout]   |
[INFO] [stdout] 6 | let (A4 , As4 , B4 , C5 ,Cs5 , D5 , Ds5, E5 ,F5 , Fs5 , G5 , Gs5 ,A5)
[INFO] [stdout]   |                                     ^^^ help: convert the identifier to snake case: `ds5`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `E5` should have a snake case name
[INFO] [stdout]  --> src/main.rs:6:42
[INFO] [stdout]   |
[INFO] [stdout] 6 | let (A4 , As4 , B4 , C5 ,Cs5 , D5 , Ds5, E5 ,F5 , Fs5 , G5 , Gs5 ,A5)
[INFO] [stdout]   |                                          ^^ help: convert the identifier to snake case: `e5`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `F5` should have a snake case name
[INFO] [stdout]  --> src/main.rs:6:46
[INFO] [stdout]   |
[INFO] [stdout] 6 | let (A4 , As4 , B4 , C5 ,Cs5 , D5 , Ds5, E5 ,F5 , Fs5 , G5 , Gs5 ,A5)
[INFO] [stdout]   |                                              ^^ help: convert the identifier to snake case (notice the capitalization): `f5`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `Fs5` should have a snake case name
[INFO] [stdout]  --> src/main.rs:6:51
[INFO] [stdout]   |
[INFO] [stdout] 6 | let (A4 , As4 , B4 , C5 ,Cs5 , D5 , Ds5, E5 ,F5 , Fs5 , G5 , Gs5 ,A5)
[INFO] [stdout]   |                                                   ^^^ help: convert the identifier to snake case (notice the capitalization): `fs5`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `G5` should have a snake case name
[INFO] [stdout]  --> src/main.rs:6:57
[INFO] [stdout]   |
[INFO] [stdout] 6 | let (A4 , As4 , B4 , C5 ,Cs5 , D5 , Ds5, E5 ,F5 , Fs5 , G5 , Gs5 ,A5)
[INFO] [stdout]   |                                                         ^^ help: convert the identifier to snake case: `g5`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `Gs5` should have a snake case name
[INFO] [stdout]  --> src/main.rs:6:62
[INFO] [stdout]   |
[INFO] [stdout] 6 | let (A4 , As4 , B4 , C5 ,Cs5 , D5 , Ds5, E5 ,F5 , Fs5 , G5 , Gs5 ,A5)
[INFO] [stdout]   |                                                              ^^^ help: convert the identifier to snake case: `gs5`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `A5` should have a snake case name
[INFO] [stdout]  --> src/main.rs:6:67
[INFO] [stdout]   |
[INFO] [stdout] 6 | let (A4 , As4 , B4 , C5 ,Cs5 , D5 , Ds5, E5 ,F5 , Fs5 , G5 , Gs5 ,A5)
[INFO] [stdout]   |                                                                   ^^ help: convert the identifier to snake case: `a5`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 24 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2.03s
[INFO] running `Command { std: "docker" "inspect" "3475687c7a6d95d9340ab119a6eeac60cdb35c493d991f02102e34687aaf7f41", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3475687c7a6d95d9340ab119a6eeac60cdb35c493d991f02102e34687aaf7f41", kill_on_drop: false }`
[INFO] [stdout] 3475687c7a6d95d9340ab119a6eeac60cdb35c493d991f02102e34687aaf7f41
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 7ce19461b99c5b19c43f21fa3258f890f339ff668c3851083c2e9fa92156710b
[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" "7ce19461b99c5b19c43f21fa3258f890f339ff668c3851083c2e9fa92156710b", kill_on_drop: false }`
[INFO] [stderr]    Compiling music_app v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `A4`
[INFO] [stdout]  --> src/main.rs:6:6
[INFO] [stdout]   |
[INFO] [stdout] 6 | let (A4 , As4 , B4 , C5 ,Cs5 , D5 , Ds5, E5 ,F5 , Fs5 , G5 , Gs5 ,A5)
[INFO] [stdout]   |      ^^ help: if this is intentional, prefix it with an underscore: `_A4`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `As4`
[INFO] [stdout]  --> src/main.rs:6:11
[INFO] [stdout]   |
[INFO] [stdout] 6 | let (A4 , As4 , B4 , C5 ,Cs5 , D5 , Ds5, E5 ,F5 , Fs5 , G5 , Gs5 ,A5)
[INFO] [stdout]   |           ^^^ help: if this is intentional, prefix it with an underscore: `_As4`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `B4`
[INFO] [stdout]  --> src/main.rs:6:17
[INFO] [stdout]   |
[INFO] [stdout] 6 | let (A4 , As4 , B4 , C5 ,Cs5 , D5 , Ds5, E5 ,F5 , Fs5 , G5 , Gs5 ,A5)
[INFO] [stdout]   |                 ^^ help: if this is intentional, prefix it with an underscore: `_B4`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `Cs5`
[INFO] [stdout]  --> src/main.rs:6:26
[INFO] [stdout]   |
[INFO] [stdout] 6 | let (A4 , As4 , B4 , C5 ,Cs5 , D5 , Ds5, E5 ,F5 , Fs5 , G5 , Gs5 ,A5)
[INFO] [stdout]   |                          ^^^ help: if this is intentional, prefix it with an underscore: `_Cs5`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `D5`
[INFO] [stdout]  --> src/main.rs:6:32
[INFO] [stdout]   |
[INFO] [stdout] 6 | let (A4 , As4 , B4 , C5 ,Cs5 , D5 , Ds5, E5 ,F5 , Fs5 , G5 , Gs5 ,A5)
[INFO] [stdout]   |                                ^^ help: if this is intentional, prefix it with an underscore: `_D5`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `Ds5`
[INFO] [stdout]  --> src/main.rs:6:37
[INFO] [stdout]   |
[INFO] [stdout] 6 | let (A4 , As4 , B4 , C5 ,Cs5 , D5 , Ds5, E5 ,F5 , Fs5 , G5 , Gs5 ,A5)
[INFO] [stdout]   |                                     ^^^ help: if this is intentional, prefix it with an underscore: `_Ds5`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `E5`
[INFO] [stdout]  --> src/main.rs:6:42
[INFO] [stdout]   |
[INFO] [stdout] 6 | let (A4 , As4 , B4 , C5 ,Cs5 , D5 , Ds5, E5 ,F5 , Fs5 , G5 , Gs5 ,A5)
[INFO] [stdout]   |                                          ^^ help: if this is intentional, prefix it with an underscore: `_E5`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `F5`
[INFO] [stdout]  --> src/main.rs:6:46
[INFO] [stdout]   |
[INFO] [stdout] 6 | let (A4 , As4 , B4 , C5 ,Cs5 , D5 , Ds5, E5 ,F5 , Fs5 , G5 , Gs5 ,A5)
[INFO] [stdout]   |                                              ^^ help: if this is intentional, prefix it with an underscore: `_F5`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `Fs5`
[INFO] [stdout]  --> src/main.rs:6:51
[INFO] [stdout]   |
[INFO] [stdout] 6 | let (A4 , As4 , B4 , C5 ,Cs5 , D5 , Ds5, E5 ,F5 , Fs5 , G5 , Gs5 ,A5)
[INFO] [stdout]   |                                                   ^^^ help: if this is intentional, prefix it with an underscore: `_Fs5`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `Gs5`
[INFO] [stdout]  --> src/main.rs:6:62
[INFO] [stdout]   |
[INFO] [stdout] 6 | let (A4 , As4 , B4 , C5 ,Cs5 , D5 , Ds5, E5 ,F5 , Fs5 , G5 , Gs5 ,A5)
[INFO] [stdout]   |                                                              ^^^ help: if this is intentional, prefix it with an underscore: `_Gs5`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `t`
[INFO] [stdout]   --> src/main.rs:28:10
[INFO] [stdout]    |
[INFO] [stdout] 28 |      for t in (0 .. 100).map(|x| x as f32 / 44100.0) {
[INFO] [stdout]    |          ^ help: if this is intentional, prefix it with an underscore: `_t`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `A4` should have a snake case name
[INFO] [stdout]  --> src/main.rs:6:6
[INFO] [stdout]   |
[INFO] [stdout] 6 | let (A4 , As4 , B4 , C5 ,Cs5 , D5 , Ds5, E5 ,F5 , Fs5 , G5 , Gs5 ,A5)
[INFO] [stdout]   |      ^^ help: convert the identifier to snake case: `a4`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(non_snake_case)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `As4` should have a snake case name
[INFO] [stdout]  --> src/main.rs:6:11
[INFO] [stdout]   |
[INFO] [stdout] 6 | let (A4 , As4 , B4 , C5 ,Cs5 , D5 , Ds5, E5 ,F5 , Fs5 , G5 , Gs5 ,A5)
[INFO] [stdout]   |           ^^^ help: convert the identifier to snake case: `as4`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `B4` should have a snake case name
[INFO] [stdout]  --> src/main.rs:6:17
[INFO] [stdout]   |
[INFO] [stdout] 6 | let (A4 , As4 , B4 , C5 ,Cs5 , D5 , Ds5, E5 ,F5 , Fs5 , G5 , Gs5 ,A5)
[INFO] [stdout]   |                 ^^ help: convert the identifier to snake case: `b4`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `C5` should have a snake case name
[INFO] [stdout]  --> src/main.rs:6:22
[INFO] [stdout]   |
[INFO] [stdout] 6 | let (A4 , As4 , B4 , C5 ,Cs5 , D5 , Ds5, E5 ,F5 , Fs5 , G5 , Gs5 ,A5)
[INFO] [stdout]   |                      ^^ help: convert the identifier to snake case (notice the capitalization): `c5`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `Cs5` should have a snake case name
[INFO] [stdout]  --> src/main.rs:6:26
[INFO] [stdout]   |
[INFO] [stdout] 6 | let (A4 , As4 , B4 , C5 ,Cs5 , D5 , Ds5, E5 ,F5 , Fs5 , G5 , Gs5 ,A5)
[INFO] [stdout]   |                          ^^^ help: convert the identifier to snake case (notice the capitalization): `cs5`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `D5` should have a snake case name
[INFO] [stdout]  --> src/main.rs:6:32
[INFO] [stdout]   |
[INFO] [stdout] 6 | let (A4 , As4 , B4 , C5 ,Cs5 , D5 , Ds5, E5 ,F5 , Fs5 , G5 , Gs5 ,A5)
[INFO] [stdout]   |                                ^^ help: convert the identifier to snake case: `d5`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `Ds5` should have a snake case name
[INFO] [stdout]  --> src/main.rs:6:37
[INFO] [stdout]   |
[INFO] [stdout] 6 | let (A4 , As4 , B4 , C5 ,Cs5 , D5 , Ds5, E5 ,F5 , Fs5 , G5 , Gs5 ,A5)
[INFO] [stdout]   |                                     ^^^ help: convert the identifier to snake case: `ds5`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `E5` should have a snake case name
[INFO] [stdout]  --> src/main.rs:6:42
[INFO] [stdout]   |
[INFO] [stdout] 6 | let (A4 , As4 , B4 , C5 ,Cs5 , D5 , Ds5, E5 ,F5 , Fs5 , G5 , Gs5 ,A5)
[INFO] [stdout]   |                                          ^^ help: convert the identifier to snake case: `e5`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `F5` should have a snake case name
[INFO] [stdout]  --> src/main.rs:6:46
[INFO] [stdout]   |
[INFO] [stdout] 6 | let (A4 , As4 , B4 , C5 ,Cs5 , D5 , Ds5, E5 ,F5 , Fs5 , G5 , Gs5 ,A5)
[INFO] [stdout]   |                                              ^^ help: convert the identifier to snake case (notice the capitalization): `f5`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `Fs5` should have a snake case name
[INFO] [stdout]  --> src/main.rs:6:51
[INFO] [stdout]   |
[INFO] [stdout] 6 | let (A4 , As4 , B4 , C5 ,Cs5 , D5 , Ds5, E5 ,F5 , Fs5 , G5 , Gs5 ,A5)
[INFO] [stdout]   |                                                   ^^^ help: convert the identifier to snake case (notice the capitalization): `fs5`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `G5` should have a snake case name
[INFO] [stdout]  --> src/main.rs:6:57
[INFO] [stdout]   |
[INFO] [stdout] 6 | let (A4 , As4 , B4 , C5 ,Cs5 , D5 , Ds5, E5 ,F5 , Fs5 , G5 , Gs5 ,A5)
[INFO] [stdout]   |                                                         ^^ help: convert the identifier to snake case: `g5`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `Gs5` should have a snake case name
[INFO] [stdout]  --> src/main.rs:6:62
[INFO] [stdout]   |
[INFO] [stdout] 6 | let (A4 , As4 , B4 , C5 ,Cs5 , D5 , Ds5, E5 ,F5 , Fs5 , G5 , Gs5 ,A5)
[INFO] [stdout]   |                                                              ^^^ help: convert the identifier to snake case: `gs5`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `A5` should have a snake case name
[INFO] [stdout]  --> src/main.rs:6:67
[INFO] [stdout]   |
[INFO] [stdout] 6 | let (A4 , As4 , B4 , C5 ,Cs5 , D5 , Ds5, E5 ,F5 , Fs5 , G5 , Gs5 ,A5)
[INFO] [stdout]   |                                                                   ^^ help: convert the identifier to snake case: `a5`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 24 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.90s
[INFO] running `Command { std: "docker" "inspect" "7ce19461b99c5b19c43f21fa3258f890f339ff668c3851083c2e9fa92156710b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7ce19461b99c5b19c43f21fa3258f890f339ff668c3851083c2e9fa92156710b", kill_on_drop: false }`
[INFO] [stdout] 7ce19461b99c5b19c43f21fa3258f890f339ff668c3851083c2e9fa92156710b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 6be185521eb68028088a9b97ecf193106fbdc8688f2ce33a769de44444e6799e
[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" "6be185521eb68028088a9b97ecf193106fbdc8688f2ce33a769de44444e6799e", kill_on_drop: false }`
[INFO] [stderr] warning: unused variable: `A4`
[INFO] [stderr]  --> src/main.rs:6:6
[INFO] [stderr]   |
[INFO] [stderr] 6 | let (A4 , As4 , B4 , C5 ,Cs5 , D5 , Ds5, E5 ,F5 , Fs5 , G5 , Gs5 ,A5)
[INFO] [stderr]   |      ^^ help: if this is intentional, prefix it with an underscore: `_A4`
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `As4`
[INFO] [stderr]  --> src/main.rs:6:11
[INFO] [stderr]   |
[INFO] [stderr] 6 | let (A4 , As4 , B4 , C5 ,Cs5 , D5 , Ds5, E5 ,F5 , Fs5 , G5 , Gs5 ,A5)
[INFO] [stderr]   |           ^^^ help: if this is intentional, prefix it with an underscore: `_As4`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `B4`
[INFO] [stderr]  --> src/main.rs:6:17
[INFO] [stderr]   |
[INFO] [stderr] 6 | let (A4 , As4 , B4 , C5 ,Cs5 , D5 , Ds5, E5 ,F5 , Fs5 , G5 , Gs5 ,A5)
[INFO] [stderr]   |                 ^^ help: if this is intentional, prefix it with an underscore: `_B4`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `Cs5`
[INFO] [stderr]  --> src/main.rs:6:26
[INFO] [stderr]   |
[INFO] [stderr] 6 | let (A4 , As4 , B4 , C5 ,Cs5 , D5 , Ds5, E5 ,F5 , Fs5 , G5 , Gs5 ,A5)
[INFO] [stderr]   |                          ^^^ help: if this is intentional, prefix it with an underscore: `_Cs5`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `D5`
[INFO] [stderr]  --> src/main.rs:6:32
[INFO] [stderr]   |
[INFO] [stderr] 6 | let (A4 , As4 , B4 , C5 ,Cs5 , D5 , Ds5, E5 ,F5 , Fs5 , G5 , Gs5 ,A5)
[INFO] [stderr]   |                                ^^ help: if this is intentional, prefix it with an underscore: `_D5`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `Ds5`
[INFO] [stderr]  --> src/main.rs:6:37
[INFO] [stderr]   |
[INFO] [stderr] 6 | let (A4 , As4 , B4 , C5 ,Cs5 , D5 , Ds5, E5 ,F5 , Fs5 , G5 , Gs5 ,A5)
[INFO] [stderr]   |                                     ^^^ help: if this is intentional, prefix it with an underscore: `_Ds5`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `E5`
[INFO] [stderr]  --> src/main.rs:6:42
[INFO] [stderr]   |
[INFO] [stderr] 6 | let (A4 , As4 , B4 , C5 ,Cs5 , D5 , Ds5, E5 ,F5 , Fs5 , G5 , Gs5 ,A5)
[INFO] [stderr]   |                                          ^^ help: if this is intentional, prefix it with an underscore: `_E5`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `F5`
[INFO] [stderr]  --> src/main.rs:6:46
[INFO] [stderr]   |
[INFO] [stderr] 6 | let (A4 , As4 , B4 , C5 ,Cs5 , D5 , Ds5, E5 ,F5 , Fs5 , G5 , Gs5 ,A5)
[INFO] [stderr]   |                                              ^^ help: if this is intentional, prefix it with an underscore: `_F5`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `Fs5`
[INFO] [stderr]  --> src/main.rs:6:51
[INFO] [stderr]   |
[INFO] [stderr] 6 | let (A4 , As4 , B4 , C5 ,Cs5 , D5 , Ds5, E5 ,F5 , Fs5 , G5 , Gs5 ,A5)
[INFO] [stderr]   |                                                   ^^^ help: if this is intentional, prefix it with an underscore: `_Fs5`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `Gs5`
[INFO] [stderr]  --> src/main.rs:6:62
[INFO] [stderr]   |
[INFO] [stderr] 6 | let (A4 , As4 , B4 , C5 ,Cs5 , D5 , Ds5, E5 ,F5 , Fs5 , G5 , Gs5 ,A5)
[INFO] [stderr]   |                                                              ^^^ help: if this is intentional, prefix it with an underscore: `_Gs5`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `t`
[INFO] [stderr]   --> src/main.rs:28:10
[INFO] [stdout] 
[INFO] [stderr]    |
[INFO] [stdout] running 0 tests
[INFO] [stderr] 28 |      for t in (0 .. 100).map(|x| x as f32 / 44100.0) {
[INFO] [stdout] 
[INFO] [stderr]    |          ^ help: if this is intentional, prefix it with an underscore: `_t`
[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] warning: variable `A4` should have a snake case name
[INFO] [stderr]  --> src/main.rs:6:6
[INFO] [stderr]   |
[INFO] [stderr] 6 | let (A4 , As4 , B4 , C5 ,Cs5 , D5 , Ds5, E5 ,F5 , Fs5 , G5 , Gs5 ,A5)
[INFO] [stderr]   |      ^^ help: convert the identifier to snake case: `a4`
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(non_snake_case)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variable `As4` should have a snake case name
[INFO] [stderr]  --> src/main.rs:6:11
[INFO] [stderr]   |
[INFO] [stderr] 6 | let (A4 , As4 , B4 , C5 ,Cs5 , D5 , Ds5, E5 ,F5 , Fs5 , G5 , Gs5 ,A5)
[INFO] [stderr]   |           ^^^ help: convert the identifier to snake case: `as4`
[INFO] [stderr] 
[INFO] [stderr] warning: variable `B4` should have a snake case name
[INFO] [stderr]  --> src/main.rs:6:17
[INFO] [stderr]   |
[INFO] [stderr] 6 | let (A4 , As4 , B4 , C5 ,Cs5 , D5 , Ds5, E5 ,F5 , Fs5 , G5 , Gs5 ,A5)
[INFO] [stderr]   |                 ^^ help: convert the identifier to snake case: `b4`
[INFO] [stderr] 
[INFO] [stderr] warning: variable `C5` should have a snake case name
[INFO] [stderr]  --> src/main.rs:6:22
[INFO] [stderr]   |
[INFO] [stderr] 6 | let (A4 , As4 , B4 , C5 ,Cs5 , D5 , Ds5, E5 ,F5 , Fs5 , G5 , Gs5 ,A5)
[INFO] [stderr]   |                      ^^ help: convert the identifier to snake case (notice the capitalization): `c5`
[INFO] [stderr] 
[INFO] [stderr] warning: variable `Cs5` should have a snake case name
[INFO] [stderr]  --> src/main.rs:6:26
[INFO] [stderr]   |
[INFO] [stderr] 6 | let (A4 , As4 , B4 , C5 ,Cs5 , D5 , Ds5, E5 ,F5 , Fs5 , G5 , Gs5 ,A5)
[INFO] [stderr]   |                          ^^^ help: convert the identifier to snake case (notice the capitalization): `cs5`
[INFO] [stderr] 
[INFO] [stderr] warning: variable `D5` should have a snake case name
[INFO] [stderr]  --> src/main.rs:6:32
[INFO] [stderr]   |
[INFO] [stderr] 6 | let (A4 , As4 , B4 , C5 ,Cs5 , D5 , Ds5, E5 ,F5 , Fs5 , G5 , Gs5 ,A5)
[INFO] [stderr]   |                                ^^ help: convert the identifier to snake case: `d5`
[INFO] [stderr] 
[INFO] [stderr] warning: variable `Ds5` should have a snake case name
[INFO] [stderr]  --> src/main.rs:6:37
[INFO] [stderr]   |
[INFO] [stderr] 6 | let (A4 , As4 , B4 , C5 ,Cs5 , D5 , Ds5, E5 ,F5 , Fs5 , G5 , Gs5 ,A5)
[INFO] [stderr]   |                                     ^^^ help: convert the identifier to snake case: `ds5`
[INFO] [stderr] 
[INFO] [stderr] warning: variable `E5` should have a snake case name
[INFO] [stderr]  --> src/main.rs:6:42
[INFO] [stderr]   |
[INFO] [stderr] 6 | let (A4 , As4 , B4 , C5 ,Cs5 , D5 , Ds5, E5 ,F5 , Fs5 , G5 , Gs5 ,A5)
[INFO] [stderr]   |                                          ^^ help: convert the identifier to snake case: `e5`
[INFO] [stderr] 
[INFO] [stderr] warning: variable `F5` should have a snake case name
[INFO] [stderr]  --> src/main.rs:6:46
[INFO] [stderr]   |
[INFO] [stderr] 6 | let (A4 , As4 , B4 , C5 ,Cs5 , D5 , Ds5, E5 ,F5 , Fs5 , G5 , Gs5 ,A5)
[INFO] [stderr]   |                                              ^^ help: convert the identifier to snake case (notice the capitalization): `f5`
[INFO] [stderr] 
[INFO] [stderr] warning: variable `Fs5` should have a snake case name
[INFO] [stderr]  --> src/main.rs:6:51
[INFO] [stderr]   |
[INFO] [stderr] 6 | let (A4 , As4 , B4 , C5 ,Cs5 , D5 , Ds5, E5 ,F5 , Fs5 , G5 , Gs5 ,A5)
[INFO] [stderr]   |                                                   ^^^ help: convert the identifier to snake case (notice the capitalization): `fs5`
[INFO] [stderr] 
[INFO] [stderr] warning: variable `G5` should have a snake case name
[INFO] [stderr]  --> src/main.rs:6:57
[INFO] [stderr]   |
[INFO] [stderr] 6 | let (A4 , As4 , B4 , C5 ,Cs5 , D5 , Ds5, E5 ,F5 , Fs5 , G5 , Gs5 ,A5)
[INFO] [stderr]   |                                                         ^^ help: convert the identifier to snake case: `g5`
[INFO] [stderr] 
[INFO] [stderr] warning: variable `Gs5` should have a snake case name
[INFO] [stderr]  --> src/main.rs:6:62
[INFO] [stderr]   |
[INFO] [stderr] 6 | let (A4 , As4 , B4 , C5 ,Cs5 , D5 , Ds5, E5 ,F5 , Fs5 , G5 , Gs5 ,A5)
[INFO] [stderr]   |                                                              ^^^ help: convert the identifier to snake case: `gs5`
[INFO] [stderr] 
[INFO] [stderr] warning: variable `A5` should have a snake case name
[INFO] [stderr]  --> src/main.rs:6:67
[INFO] [stderr]   |
[INFO] [stderr] 6 | let (A4 , As4 , B4 , C5 ,Cs5 , D5 , Ds5, E5 ,F5 , Fs5 , G5 , Gs5 ,A5)
[INFO] [stderr]   |                                                                   ^^ help: convert the identifier to snake case: `a5`
[INFO] [stderr] 
[INFO] [stderr] warning: `music_app` (bin "music_app" test) generated 24 warnings
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/music_app-744a304bff91895e)
[INFO] running `Command { std: "docker" "inspect" "6be185521eb68028088a9b97ecf193106fbdc8688f2ce33a769de44444e6799e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6be185521eb68028088a9b97ecf193106fbdc8688f2ce33a769de44444e6799e", kill_on_drop: false }`
[INFO] [stdout] 6be185521eb68028088a9b97ecf193106fbdc8688f2ce33a769de44444e6799e