Dec 19 12:34:29.139 INFO checking miyamofigo/lzw against master#d99a320cba42f661aebfa1293b7b2ec3603dda75 for pr-56955
Dec 19 12:34:29.139 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56955/worker-2/master#d99a320cba42f661aebfa1293b7b2ec3603dda75:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-56955/sources/master#d99a320cba42f661aebfa1293b7b2ec3603dda75/gh/miyamofigo/lzw:/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 12:34:29.355 INFO [stdout] d38bb97622629d0625044366556d718ee20b671143a06ac89f34ce7858b5a6ab
Dec 19 12:34:29.360 INFO running `"docker" "start" "-a" "d38bb97622629d0625044366556d718ee20b671143a06ac89f34ce7858b5a6ab"`
Dec 19 12:34:30.276 INFO [stderr]     Checking lzw v0.1.0 (/opt/crater/workdir)
Dec 19 12:34:30.518 INFO [stderr] warning: variable does not need to be mutable
Dec 19 12:34:30.518 INFO [stderr]    --> src/main.rs:115:9
Dec 19 12:34:30.518 INFO [stderr]     |
Dec 19 12:34:30.518 INFO [stderr] 115 |     let mut comp = compress("hello world");
Dec 19 12:34:30.518 INFO [stderr]     |         ----^^^^
Dec 19 12:34:30.518 INFO [stderr]     |         |
Dec 19 12:34:30.518 INFO [stderr]     |         help: remove this `mut`
Dec 19 12:34:30.518 INFO [stderr]     |
Dec 19 12:34:30.518 INFO [stderr]     = note: #[warn(unused_mut)] on by default
Dec 19 12:34:30.518 INFO [stderr] 
Dec 19 12:34:30.518 INFO [stderr] warning: variable does not need to be mutable
Dec 19 12:34:30.518 INFO [stderr]    --> src/main.rs:119:9
Dec 19 12:34:30.518 INFO [stderr]     |
Dec 19 12:34:30.518 INFO [stderr] 119 |     let mut comp2 = compress("hello worldhello world");
Dec 19 12:34:30.518 INFO [stderr]     |         ----^^^^^
Dec 19 12:34:30.518 INFO [stderr]     |         |
Dec 19 12:34:30.519 INFO [stderr]     |         help: remove this `mut`
Dec 19 12:34:30.519 INFO [stderr] 
Dec 19 12:34:30.545 INFO [stderr] warning: variable does not need to be mutable
Dec 19 12:34:30.545 INFO [stderr]    --> src/main.rs:115:9
Dec 19 12:34:30.545 INFO [stderr]     |
Dec 19 12:34:30.545 INFO [stderr] 115 |     let mut comp = compress("hello world");
Dec 19 12:34:30.545 INFO [stderr]     |         ----^^^^
Dec 19 12:34:30.545 INFO [stderr]     |         |
Dec 19 12:34:30.545 INFO [stderr]     |         help: remove this `mut`
Dec 19 12:34:30.545 INFO [stderr]     |
Dec 19 12:34:30.545 INFO [stderr]     = note: #[warn(unused_mut)] on by default
Dec 19 12:34:30.545 INFO [stderr] 
Dec 19 12:34:30.545 INFO [stderr] warning: variable does not need to be mutable
Dec 19 12:34:30.545 INFO [stderr]    --> src/main.rs:119:9
Dec 19 12:34:30.545 INFO [stderr]     |
Dec 19 12:34:30.545 INFO [stderr] 119 |     let mut comp2 = compress("hello worldhello world");
Dec 19 12:34:30.545 INFO [stderr]     |         ----^^^^^
Dec 19 12:34:30.545 INFO [stderr]     |         |
Dec 19 12:34:30.545 INFO [stderr]     |         help: remove this `mut`
Dec 19 12:34:30.545 INFO [stderr] 
Dec 19 12:34:30.584 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.32s
Dec 19 12:34:31.368 INFO running `"docker" "inspect" "d38bb97622629d0625044366556d718ee20b671143a06ac89f34ce7858b5a6ab"`
Dec 19 12:34:31.639 INFO running `"docker" "rm" "-f" "d38bb97622629d0625044366556d718ee20b671143a06ac89f34ce7858b5a6ab"`
Dec 19 12:34:31.936 INFO [stdout] d38bb97622629d0625044366556d718ee20b671143a06ac89f34ce7858b5a6ab