Dec 17 19:31:51.086 INFO checking mkilgore/rshell against try#0b8c5828f68d7b2840b81fa51239346dc97fef5a for pr-54252
Dec 17 19:31:51.086 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-54252/worker-4/try#0b8c5828f68d7b2840b81fa51239346dc97fef5a:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-54252/sources/try#0b8c5828f68d7b2840b81fa51239346dc97fef5a/gh/mkilgore/rshell:/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 17 19:31:51.398 INFO [stdout] d1d3d0fea6bfed9e8340c3630b3bf8d39801ead9f0531c2de07ea85e2e263dd5
Dec 17 19:31:51.400 INFO running `"docker" "start" "-a" "d1d3d0fea6bfed9e8340c3630b3bf8d39801ead9f0531c2de07ea85e2e263dd5"`
Dec 17 19:31:52.092 INFO [stderr]     Checking rshell v0.1.0 (/opt/crater/workdir)
Dec 17 19:31:52.252 INFO [stderr] warning: unnecessary parentheses around function argument
Dec 17 19:31:52.252 INFO [stderr]   --> src/job_list.rs:38:44
Dec 17 19:31:52.252 INFO [stderr]    |
Dec 17 19:31:52.252 INFO [stderr] 38 |         self.list.push(Arc::new(Mutex::new((job))));
Dec 17 19:31:52.252 INFO [stderr]    |                                            ^^^^^ help: remove these parentheses
Dec 17 19:31:52.252 INFO [stderr]    |
Dec 17 19:31:52.252 INFO [stderr]    = note: #[warn(unused_parens)] on by default
Dec 17 19:31:52.252 INFO [stderr] 
Dec 17 19:31:52.272 INFO [stderr] warning: unnecessary parentheses around function argument
Dec 17 19:31:52.272 INFO [stderr]   --> src/job_list.rs:38:44
Dec 17 19:31:52.272 INFO [stderr]    |
Dec 17 19:31:52.272 INFO [stderr] 38 |         self.list.push(Arc::new(Mutex::new((job))));
Dec 17 19:31:52.272 INFO [stderr]    |                                            ^^^^^ help: remove these parentheses
Dec 17 19:31:52.272 INFO [stderr]    |
Dec 17 19:31:52.272 INFO [stderr]    = note: #[warn(unused_parens)] on by default
Dec 17 19:31:52.272 INFO [stderr] 
Dec 17 19:31:52.452 INFO [stderr] warning: variable does not need to be mutable
Dec 17 19:31:52.452 INFO [stderr]   --> src/job.rs:80:22
Dec 17 19:31:52.452 INFO [stderr]    |
Dec 17 19:31:52.452 INFO [stderr] 80 |     pub fn parse_job(mut lex: &mut InputLexer) -> Option<Job> {
Dec 17 19:31:52.452 INFO [stderr]    |                      ----^^^
Dec 17 19:31:52.452 INFO [stderr]    |                      |
Dec 17 19:31:52.452 INFO [stderr]    |                      help: remove this `mut`
Dec 17 19:31:52.452 INFO [stderr]    |
Dec 17 19:31:52.452 INFO [stderr]    = note: #[warn(unused_mut)] on by default
Dec 17 19:31:52.452 INFO [stderr] 
Dec 17 19:31:52.476 INFO [stderr] warning: variable does not need to be mutable
Dec 17 19:31:52.476 INFO [stderr]   --> src/job.rs:80:22
Dec 17 19:31:52.476 INFO [stderr]    |
Dec 17 19:31:52.476 INFO [stderr] 80 |     pub fn parse_job(mut lex: &mut InputLexer) -> Option<Job> {
Dec 17 19:31:52.476 INFO [stderr]    |                      ----^^^
Dec 17 19:31:52.476 INFO [stderr]    |                      |
Dec 17 19:31:52.476 INFO [stderr]    |                      help: remove this `mut`
Dec 17 19:31:52.476 INFO [stderr]    |
Dec 17 19:31:52.476 INFO [stderr]    = note: #[warn(unused_mut)] on by default
Dec 17 19:31:52.476 INFO [stderr] 
Dec 17 19:31:52.592 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.52s
Dec 17 19:31:52.910 INFO running `"docker" "inspect" "d1d3d0fea6bfed9e8340c3630b3bf8d39801ead9f0531c2de07ea85e2e263dd5"`
Dec 17 19:31:52.999 INFO running `"docker" "rm" "-f" "d1d3d0fea6bfed9e8340c3630b3bf8d39801ead9f0531c2de07ea85e2e263dd5"`
Dec 17 19:31:53.134 INFO [stdout] d1d3d0fea6bfed9e8340c3630b3bf8d39801ead9f0531c2de07ea85e2e263dd5