[INFO] cloning repository https://github.com/Auxnon/audio-test
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/Auxnon/audio-test" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FAuxnon%2Faudio-test", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FAuxnon%2Faudio-test'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 95f616243496a386f973b54457c86bfd4565e014
[INFO] checking Auxnon/audio-test against try#77ee4623672f6bca3e33ba60b6479de48d44b1f9 for pr-99217
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FAuxnon%2Faudio-test" "/workspace/builds/worker-6/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-6/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/Auxnon/audio-test on toolchain 77ee4623672f6bca3e33ba60b6479de48d44b1f9
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+77ee4623672f6bca3e33ba60b6479de48d44b1f9" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/Auxnon/audio-test
[INFO] finished tweaking git repo https://github.com/Auxnon/audio-test
[INFO] tweaked toml for git repo https://github.com/Auxnon/audio-test written to /workspace/builds/worker-6/source/Cargo.toml
[INFO] crate git repo https://github.com/Auxnon/audio-test already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+77ee4623672f6bca3e33ba60b6479de48d44b1f9" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
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[INFO] [stdout] dc3b481bd8e779bc0615950f6cb2731d587e21e7ebc6b787aa2bc1fad4e5fc63
[INFO] running `Command { std: "docker" "start" "-a" "dc3b481bd8e779bc0615950f6cb2731d587e21e7ebc6b787aa2bc1fad4e5fc63", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "dc3b481bd8e779bc0615950f6cb2731d587e21e7ebc6b787aa2bc1fad4e5fc63", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "dc3b481bd8e779bc0615950f6cb2731d587e21e7ebc6b787aa2bc1fad4e5fc63", kill_on_drop: false }`
[INFO] [stdout] dc3b481bd8e779bc0615950f6cb2731d587e21e7ebc6b787aa2bc1fad4e5fc63
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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:ecb52c4cf6672b83cc996368a05b4a059042425f2b6ba9cd23a06cdead5d8d70" "/opt/rustwide/cargo-home/bin/cargo" "+77ee4623672f6bca3e33ba60b6479de48d44b1f9" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
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[INFO] [stdout] warning: unused imports: `Arc`, `Mutex`
[INFO] [stdout]  --> src/main.rs:1:17
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::sync::{Arc, Mutex};
[INFO] [stdout]   |                 ^^^  ^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `Arc`, `Mutex`
[INFO] [stdout]  --> src/main.rs:1:17
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::sync::{Arc, Mutex};
[INFO] [stdout]   |                 ^^^  ^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `byte_slice_cast::AsByteSlice`
[INFO] [stdout]  --> src/main.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | use byte_slice_cast::AsByteSlice;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `byte_slice_cast::AsByteSlice`
[INFO] [stdout]  --> src/main.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | use byte_slice_cast::AsByteSlice;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `Sample`
[INFO] [stdout]  --> src/main.rs:6:5
[INFO] [stdout]   |
[INFO] [stdout] 6 |     Sample,
[INFO] [stdout]   |     ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `Sample`
[INFO] [stdout]  --> src/main.rs:6:5
[INFO] [stdout]   |
[INFO] [stdout] 6 |     Sample,
[INFO] [stdout]   |     ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `a`
[INFO] [stdout]    --> src/main.rs:134:13
[INFO] [stdout]     |
[INFO] [stdout] 134 |         let a = 2.;
[INFO] [stdout]     |             ^ help: if this is intentional, prefix it with an underscore: `_a`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `a`
[INFO] [stdout]    --> src/main.rs:134:13
[INFO] [stdout]     |
[INFO] [stdout] 134 |         let a = 2.;
[INFO] [stdout]     |             ^ help: if this is intentional, prefix it with an underscore: `_a`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `p`
[INFO] [stdout]    --> src/main.rs:135:13
[INFO] [stdout]     |
[INFO] [stdout] 135 |         let p = 4.;
[INFO] [stdout]     |             ^ help: if this is intentional, prefix it with an underscore: `_p`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `p`
[INFO] [stdout]    --> src/main.rs:135:13
[INFO] [stdout]     |
[INFO] [stdout] 135 |         let p = 4.;
[INFO] [stdout]     |             ^ help: if this is intentional, prefix it with an underscore: `_p`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: static variable `buffer` should have an upper case name
[INFO] [stdout]   --> src/main.rs:23:16
[INFO] [stdout]    |
[INFO] [stdout] 23 |     static ref buffer: [i16; 44100 * 2] = [0i16; 44100 * 2];
[INFO] [stdout]    |                ^^^^^^ help: convert the identifier to upper case: `BUFFER`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(non_upper_case_globals)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: static variable `buffer` should have an upper case name
[INFO] [stdout]   --> src/main.rs:23:16
[INFO] [stdout]    |
[INFO] [stdout] 23 |     static ref buffer: [i16; 44100 * 2] = [0i16; 44100 * 2];
[INFO] [stdout]    |                ^^^^^^ help: convert the identifier to upper case: `BUFFER`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(non_upper_case_globals)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 6 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 6 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 44.59s
[INFO] [stderr] warning: the following packages contain code that will be rejected by a future version of Rust: al-sys v0.6.1, rental v0.5.6
[INFO] [stderr] note: to see what the problems were, use the option `--future-incompat-report`, or run `cargo report future-incompatibilities --id 1`
[INFO] running `Command { std: "docker" "inspect" "442f5d01efcf2a957a4cc4feb3df1748e564c33b5599741d9decd85e67bc8c59", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "442f5d01efcf2a957a4cc4feb3df1748e564c33b5599741d9decd85e67bc8c59", kill_on_drop: false }`
[INFO] [stdout] 442f5d01efcf2a957a4cc4feb3df1748e564c33b5599741d9decd85e67bc8c59