Dec 19 10:06:43.993 INFO checking rmirabelli/lexer against master#d99a320cba42f661aebfa1293b7b2ec3603dda75 for pr-56955
Dec 19 10:06:43.993 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56955/worker-6/master#d99a320cba42f661aebfa1293b7b2ec3603dda75:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-56955/sources/master#d99a320cba42f661aebfa1293b7b2ec3603dda75/gh/rmirabelli/lexer:/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 10:06:44.488 INFO [stdout] c30854ff71b9afebbad44e63c18bc05fa4936db69e9381c68c07809d12160c61
Dec 19 10:06:44.508 INFO running `"docker" "start" "-a" "c30854ff71b9afebbad44e63c18bc05fa4936db69e9381c68c07809d12160c61"`
Dec 19 10:06:46.300 INFO [stderr]     Checking lexer v0.1.0 (/opt/crater/workdir)
Dec 19 10:06:46.628 INFO [stderr] warning: variable does not need to be mutable
Dec 19 10:06:46.628 INFO [stderr]   --> src/lib.rs:82:13
Dec 19 10:06:46.628 INFO [stderr]    |
Dec 19 10:06:46.628 INFO [stderr] 82 |         let mut x = tokenize("(+ 33(+ 4 5))");
Dec 19 10:06:46.628 INFO [stderr]    |             ----^
Dec 19 10:06:46.628 INFO [stderr]    |             |
Dec 19 10:06:46.628 INFO [stderr]    |             help: remove this `mut`
Dec 19 10:06:46.628 INFO [stderr]    |
Dec 19 10:06:46.628 INFO [stderr]    = note: #[warn(unused_mut)] on by default
Dec 19 10:06:46.628 INFO [stderr] 
Dec 19 10:06:47.011 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.74s
Dec 19 10:06:48.178 INFO running `"docker" "inspect" "c30854ff71b9afebbad44e63c18bc05fa4936db69e9381c68c07809d12160c61"`
Dec 19 10:06:48.558 INFO running `"docker" "rm" "-f" "c30854ff71b9afebbad44e63c18bc05fa4936db69e9381c68c07809d12160c61"`
Dec 19 10:06:48.916 INFO [stdout] c30854ff71b9afebbad44e63c18bc05fa4936db69e9381c68c07809d12160c61