Dec 19 05:21:25.944 INFO checking xTibor/triduty-wave against master#d99a320cba42f661aebfa1293b7b2ec3603dda75 for pr-56955
Dec 19 05:21:25.944 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56955/worker-4/master#d99a320cba42f661aebfa1293b7b2ec3603dda75:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-56955/sources/master#d99a320cba42f661aebfa1293b7b2ec3603dda75/gh/xTibor/triduty-wave:/opt/crater/workdir:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/opt/crater/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/opt/crater/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/crater/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/crater/cargo-home" "-e" "RUSTUP_HOME=/opt/crater/rustup-home" "-w" "/opt/crater/workdir" "-m" "1536M" "--network" "none" "rustops/crates-build-env" "/opt/crater/cargo-home/bin/cargo" "+d99a320cba42f661aebfa1293b7b2ec3603dda75-alt" "check" "--frozen" "--all" "--all-targets"`
Dec 19 05:21:26.454 INFO [stdout] 503e322415613a571a5c5bf10de87ecd9943c2f3bace240a825211bfaffb86fe
Dec 19 05:21:26.456 INFO running `"docker" "start" "-a" "503e322415613a571a5c5bf10de87ecd9943c2f3bace240a825211bfaffb86fe"`
Dec 19 05:21:28.056 INFO [stderr]    Compiling x11-dl v2.14.0
Dec 19 05:21:28.056 INFO [stderr]    Compiling alsa-sys v0.1.2
Dec 19 05:21:28.056 INFO [stderr]    Compiling minifb v0.11.1
Dec 19 05:21:30.213 INFO [stderr]     Checking cpal v0.8.2
Dec 19 05:21:34.160 INFO [stderr]     Checking triduty-wave v0.1.0 (/opt/crater/workdir)
Dec 19 05:21:34.388 INFO [stderr] warning: variable does not need to be mutable
Dec 19 05:21:34.388 INFO [stderr]   --> src/main.rs:27:9
Dec 19 05:21:34.388 INFO [stderr]    |
Dec 19 05:21:34.388 INFO [stderr] 27 |     let mut tri = Arc::new(Mutex::new(0.5));
Dec 19 05:21:34.388 INFO [stderr]    |         ----^^^
Dec 19 05:21:34.388 INFO [stderr]    |         |
Dec 19 05:21:34.388 INFO [stderr]    |         help: remove this `mut`
Dec 19 05:21:34.388 INFO [stderr]    |
Dec 19 05:21:34.388 INFO [stderr]    = note: #[warn(unused_mut)] on by default
Dec 19 05:21:34.388 INFO [stderr] 
Dec 19 05:21:34.388 INFO [stderr] warning: variable does not need to be mutable
Dec 19 05:21:34.388 INFO [stderr]   --> src/main.rs:28:9
Dec 19 05:21:34.388 INFO [stderr]    |
Dec 19 05:21:34.388 INFO [stderr] 28 |     let mut duty = Arc::new(Mutex::new(0.5));
Dec 19 05:21:34.388 INFO [stderr]    |         ----^^^^
Dec 19 05:21:34.388 INFO [stderr]    |         |
Dec 19 05:21:34.388 INFO [stderr]    |         help: remove this `mut`
Dec 19 05:21:34.388 INFO [stderr] 
Dec 19 05:21:34.388 INFO [stderr] warning: variable does not need to be mutable
Dec 19 05:21:34.388 INFO [stderr]   --> src/main.rs:30:9
Dec 19 05:21:34.388 INFO [stderr]    |
Dec 19 05:21:34.388 INFO [stderr] 30 |     let mut pitch = Arc::new(Mutex::new(440.0));
Dec 19 05:21:34.389 INFO [stderr]    |         ----^^^^^
Dec 19 05:21:34.389 INFO [stderr]    |         |
Dec 19 05:21:34.389 INFO [stderr]    |         help: remove this `mut`
Dec 19 05:21:34.389 INFO [stderr] 
Dec 19 05:21:34.612 INFO [stderr] warning: variable does not need to be mutable
Dec 19 05:21:34.612 INFO [stderr]   --> src/main.rs:27:9
Dec 19 05:21:34.612 INFO [stderr]    |
Dec 19 05:21:34.612 INFO [stderr] 27 |     let mut tri = Arc::new(Mutex::new(0.5));
Dec 19 05:21:34.612 INFO [stderr]    |         ----^^^
Dec 19 05:21:34.612 INFO [stderr]    |         |
Dec 19 05:21:34.612 INFO [stderr]    |         help: remove this `mut`
Dec 19 05:21:34.612 INFO [stderr]    |
Dec 19 05:21:34.612 INFO [stderr]    = note: #[warn(unused_mut)] on by default
Dec 19 05:21:34.612 INFO [stderr] 
Dec 19 05:21:34.612 INFO [stderr] warning: variable does not need to be mutable
Dec 19 05:21:34.612 INFO [stderr]   --> src/main.rs:28:9
Dec 19 05:21:34.612 INFO [stderr]    |
Dec 19 05:21:34.612 INFO [stderr] 28 |     let mut duty = Arc::new(Mutex::new(0.5));
Dec 19 05:21:34.612 INFO [stderr]    |         ----^^^^
Dec 19 05:21:34.612 INFO [stderr]    |         |
Dec 19 05:21:34.612 INFO [stderr]    |         help: remove this `mut`
Dec 19 05:21:34.612 INFO [stderr] 
Dec 19 05:21:34.612 INFO [stderr] warning: variable does not need to be mutable
Dec 19 05:21:34.612 INFO [stderr]   --> src/main.rs:30:9
Dec 19 05:21:34.612 INFO [stderr]    |
Dec 19 05:21:34.612 INFO [stderr] 30 |     let mut pitch = Arc::new(Mutex::new(440.0));
Dec 19 05:21:34.612 INFO [stderr]    |         ----^^^^^
Dec 19 05:21:34.612 INFO [stderr]    |         |
Dec 19 05:21:34.613 INFO [stderr]    |         help: remove this `mut`
Dec 19 05:21:34.613 INFO [stderr] 
Dec 19 05:21:34.636 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 6.74s
Dec 19 05:21:35.684 INFO running `"docker" "inspect" "503e322415613a571a5c5bf10de87ecd9943c2f3bace240a825211bfaffb86fe"`
Dec 19 05:21:35.996 INFO running `"docker" "rm" "-f" "503e322415613a571a5c5bf10de87ecd9943c2f3bace240a825211bfaffb86fe"`
Dec 19 05:21:36.328 INFO [stdout] 503e322415613a571a5c5bf10de87ecd9943c2f3bace240a825211bfaffb86fe