Dec 19 12:33:23.049 INFO checking mkilgore/rshell against try#e70472fc501b855c9080f3772432c10fe20b8866 for pr-56955
Dec 19 12:33:23.049 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56955/worker-4/try#e70472fc501b855c9080f3772432c10fe20b8866:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-56955/sources/try#e70472fc501b855c9080f3772432c10fe20b8866/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" "+e70472fc501b855c9080f3772432c10fe20b8866-alt" "check" "--frozen" "--all" "--all-targets"`
Dec 19 12:33:23.243 INFO [stdout] 4771df1cf7cef19038a0e4becb738dab50a6b438d2d3c7f77a5c7064bcae219e
Dec 19 12:33:23.246 INFO running `"docker" "start" "-a" "4771df1cf7cef19038a0e4becb738dab50a6b438d2d3c7f77a5c7064bcae219e"`
Dec 19 12:33:23.810 INFO [stderr]     Checking rshell v0.1.0 (/opt/crater/workdir)
Dec 19 12:33:23.984 INFO [stderr] warning: unnecessary parentheses around function argument
Dec 19 12:33:23.984 INFO [stderr]   --> src/job_list.rs:38:44
Dec 19 12:33:23.984 INFO [stderr]    |
Dec 19 12:33:23.984 INFO [stderr] 38 |         self.list.push(Arc::new(Mutex::new((job))));
Dec 19 12:33:23.984 INFO [stderr]    |                                            ^^^^^ help: remove these parentheses
Dec 19 12:33:23.984 INFO [stderr]    |
Dec 19 12:33:23.984 INFO [stderr]    = note: #[warn(unused_parens)] on by default
Dec 19 12:33:23.984 INFO [stderr] 
Dec 19 12:33:23.988 INFO [stderr] warning: unnecessary parentheses around function argument
Dec 19 12:33:23.988 INFO [stderr]   --> src/job_list.rs:38:44
Dec 19 12:33:23.988 INFO [stderr]    |
Dec 19 12:33:23.988 INFO [stderr] 38 |         self.list.push(Arc::new(Mutex::new((job))));
Dec 19 12:33:23.988 INFO [stderr]    |                                            ^^^^^ help: remove these parentheses
Dec 19 12:33:23.988 INFO [stderr]    |
Dec 19 12:33:23.988 INFO [stderr]    = note: #[warn(unused_parens)] on by default
Dec 19 12:33:23.988 INFO [stderr] 
Dec 19 12:33:24.176 INFO [stderr] warning: variable does not need to be mutable
Dec 19 12:33:24.176 INFO [stderr]   --> src/job.rs:80:22
Dec 19 12:33:24.176 INFO [stderr]    |
Dec 19 12:33:24.176 INFO [stderr] 80 |     pub fn parse_job(mut lex: &mut InputLexer) -> Option<Job> {
Dec 19 12:33:24.176 INFO [stderr]    |                      ----^^^
Dec 19 12:33:24.176 INFO [stderr]    |                      |
Dec 19 12:33:24.176 INFO [stderr]    |                      help: remove this `mut`
Dec 19 12:33:24.176 INFO [stderr]    |
Dec 19 12:33:24.176 INFO [stderr]    = note: #[warn(unused_mut)] on by default
Dec 19 12:33:24.176 INFO [stderr] 
Dec 19 12:33:24.240 INFO [stderr] warning: variable does not need to be mutable
Dec 19 12:33:24.240 INFO [stderr]   --> src/job.rs:80:22
Dec 19 12:33:24.240 INFO [stderr]    |
Dec 19 12:33:24.240 INFO [stderr] 80 |     pub fn parse_job(mut lex: &mut InputLexer) -> Option<Job> {
Dec 19 12:33:24.240 INFO [stderr]    |                      ----^^^
Dec 19 12:33:24.240 INFO [stderr]    |                      |
Dec 19 12:33:24.240 INFO [stderr]    |                      help: remove this `mut`
Dec 19 12:33:24.240 INFO [stderr]    |
Dec 19 12:33:24.240 INFO [stderr]    = note: #[warn(unused_mut)] on by default
Dec 19 12:33:24.240 INFO [stderr] 
Dec 19 12:33:24.290 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.50s
Dec 19 12:33:24.539 INFO running `"docker" "inspect" "4771df1cf7cef19038a0e4becb738dab50a6b438d2d3c7f77a5c7064bcae219e"`
Dec 19 12:33:24.702 INFO running `"docker" "rm" "-f" "4771df1cf7cef19038a0e4becb738dab50a6b438d2d3c7f77a5c7064bcae219e"`
Dec 19 12:33:24.868 INFO [stdout] 4771df1cf7cef19038a0e4becb738dab50a6b438d2d3c7f77a5c7064bcae219e