Dec 18 17:43:45.993 INFO checking cbuf-0.1.1 against try#0b8c5828f68d7b2840b81fa51239346dc97fef5a for pr-54252
Dec 18 17:43:45.993 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-54252/worker-3/try#0b8c5828f68d7b2840b81fa51239346dc97fef5a:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-54252/sources/try#0b8c5828f68d7b2840b81fa51239346dc97fef5a/reg/cbuf/0.1.1:/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 17:43:46.156 INFO [stdout] dec20b96bcaee590d85476adff81b5264655f0dc6637cb3e401f1db9c5096b34
Dec 18 17:43:46.158 INFO running `"docker" "start" "-a" "dec20b96bcaee590d85476adff81b5264655f0dc6637cb3e401f1db9c5096b34"`
Dec 18 17:43:46.880 INFO [stderr]     Checking cbuf v0.1.1 (/opt/crater/workdir)
Dec 18 17:43:47.413 INFO [stderr] warning: variable does not need to be mutable
Dec 18 17:43:47.413 INFO [stderr]    --> src/lib.rs:235:13
Dec 18 17:43:47.413 INFO [stderr]     |
Dec 18 17:43:47.413 INFO [stderr] 235 |         let mut buf = &mut [0u8, 2];
Dec 18 17:43:47.413 INFO [stderr]     |             ----^^^
Dec 18 17:43:47.414 INFO [stderr]     |             |
Dec 18 17:43:47.414 INFO [stderr]     |             help: remove this `mut`
Dec 18 17:43:47.414 INFO [stderr]     |
Dec 18 17:43:47.414 INFO [stderr]     = note: #[warn(unused_mut)] on by default
Dec 18 17:43:47.414 INFO [stderr] 
Dec 18 17:43:47.420 INFO [stderr] warning: variable does not need to be mutable
Dec 18 17:43:47.420 INFO [stderr]    --> src/lib.rs:266:13
Dec 18 17:43:47.420 INFO [stderr]     |
Dec 18 17:43:47.420 INFO [stderr] 266 |         let mut buf = &mut [0u8, 0u8];
Dec 18 17:43:47.420 INFO [stderr]     |             ----^^^
Dec 18 17:43:47.420 INFO [stderr]     |             |
Dec 18 17:43:47.420 INFO [stderr]     |             help: remove this `mut`
Dec 18 17:43:47.424 INFO [stderr] 
Dec 18 17:43:47.425 INFO [stderr] warning: variable does not need to be mutable
Dec 18 17:43:47.425 INFO [stderr]    --> src/lib.rs:298:13
Dec 18 17:43:47.425 INFO [stderr]     |
Dec 18 17:43:47.425 INFO [stderr] 298 |         let mut buf = &mut [0u8, 0u8];
Dec 18 17:43:47.425 INFO [stderr]     |             ----^^^
Dec 18 17:43:47.425 INFO [stderr]     |             |
Dec 18 17:43:47.425 INFO [stderr]     |             help: remove this `mut`
Dec 18 17:43:47.426 INFO [stderr] 
Dec 18 17:43:47.524 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.64s
Dec 18 17:43:47.954 INFO running `"docker" "inspect" "dec20b96bcaee590d85476adff81b5264655f0dc6637cb3e401f1db9c5096b34"`
Dec 18 17:43:48.036 INFO running `"docker" "rm" "-f" "dec20b96bcaee590d85476adff81b5264655f0dc6637cb3e401f1db9c5096b34"`
Dec 18 17:43:48.138 INFO [stdout] dec20b96bcaee590d85476adff81b5264655f0dc6637cb3e401f1db9c5096b34