Dec 18 16:13:35.716 INFO checking genio-0.1.0 against try#0b8c5828f68d7b2840b81fa51239346dc97fef5a for pr-54252
Dec 18 16:13:35.717 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-54252/worker-7/try#0b8c5828f68d7b2840b81fa51239346dc97fef5a:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-54252/sources/try#0b8c5828f68d7b2840b81fa51239346dc97fef5a/reg/genio/0.1.0:/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" "+0b8c5828f68d7b2840b81fa51239346dc97fef5a-alt" "check" "--frozen" "--all" "--all-targets"`
Dec 18 16:13:35.985 INFO [stdout] 172c4bcbf25294650c459083d21634c036a46999d522d8fb6fe09339133dc1ea
Dec 18 16:13:35.987 INFO running `"docker" "start" "-a" "172c4bcbf25294650c459083d21634c036a46999d522d8fb6fe09339133dc1ea"`
Dec 18 16:13:36.737 INFO [stderr]     Checking genio v0.1.0 (/opt/crater/workdir)
Dec 18 16:13:37.372 INFO [stderr] warning: variable does not need to be mutable
Dec 18 16:13:37.372 INFO [stderr]   --> src/util/repeat_bytes.rs:13:24
Dec 18 16:13:37.372 INFO [stderr]    |
Dec 18 16:13:37.372 INFO [stderr] 13 |     fn read(&mut self, mut buf: &mut [u8]) -> Result<usize, Self::ReadError> {
Dec 18 16:13:37.372 INFO [stderr]    |                        ----^^^
Dec 18 16:13:37.372 INFO [stderr]    |                        |
Dec 18 16:13:37.372 INFO [stderr]    |                        help: remove this `mut`
Dec 18 16:13:37.372 INFO [stderr]    |
Dec 18 16:13:37.372 INFO [stderr]    = note: #[warn(unused_mut)] on by default
Dec 18 16:13:37.372 INFO [stderr] 
Dec 18 16:13:37.481 INFO [stderr] warning: variable does not need to be mutable
Dec 18 16:13:37.481 INFO [stderr]   --> src/util/repeat_bytes.rs:13:24
Dec 18 16:13:37.481 INFO [stderr]    |
Dec 18 16:13:37.481 INFO [stderr] 13 |     fn read(&mut self, mut buf: &mut [u8]) -> Result<usize, Self::ReadError> {
Dec 18 16:13:37.481 INFO [stderr]    |                        ----^^^
Dec 18 16:13:37.481 INFO [stderr]    |                        |
Dec 18 16:13:37.481 INFO [stderr]    |                        help: remove this `mut`
Dec 18 16:13:37.481 INFO [stderr]    |
Dec 18 16:13:37.481 INFO [stderr]    = note: #[warn(unused_mut)] on by default
Dec 18 16:13:37.481 INFO [stderr] 
Dec 18 16:13:37.525 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.81s
Dec 18 16:13:37.879 INFO running `"docker" "inspect" "172c4bcbf25294650c459083d21634c036a46999d522d8fb6fe09339133dc1ea"`
Dec 18 16:13:38.062 INFO running `"docker" "rm" "-f" "172c4bcbf25294650c459083d21634c036a46999d522d8fb6fe09339133dc1ea"`
Dec 18 16:13:38.217 INFO [stdout] 172c4bcbf25294650c459083d21634c036a46999d522d8fb6fe09339133dc1ea