Dec 19 19:06:25.373 INFO checking cheshyre/project-euler against master#d99a320cba42f661aebfa1293b7b2ec3603dda75 for pr-56955
Dec 19 19:06:25.373 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56955/worker-5/master#d99a320cba42f661aebfa1293b7b2ec3603dda75:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-56955/sources/master#d99a320cba42f661aebfa1293b7b2ec3603dda75/gh/cheshyre/project-euler:/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 19:06:25.822 INFO [stdout] 19dec6853b3f7a153762aec55b8c51e15efa5b248cca5d9281e1c09d0681e7e3
Dec 19 19:06:25.828 INFO running `"docker" "start" "-a" "19dec6853b3f7a153762aec55b8c51e15efa5b248cca5d9281e1c09d0681e7e3"`
Dec 19 19:06:27.120 INFO [stderr]     Checking project_euler v0.1.0 (/opt/crater/workdir)
Dec 19 19:06:27.564 INFO [stderr] warning: unused variable: `break_again`
Dec 19 19:06:27.564 INFO [stderr]  --> src/bin/p00004.rs:9:13
Dec 19 19:06:27.564 INFO [stderr]   |
Dec 19 19:06:27.564 INFO [stderr] 9 |     let mut break_again = false;
Dec 19 19:06:27.564 INFO [stderr]   |             ^^^^^^^^^^^ help: consider using `_break_again` instead
Dec 19 19:06:27.564 INFO [stderr]   |
Dec 19 19:06:27.564 INFO [stderr]   = note: #[warn(unused_variables)] on by default
Dec 19 19:06:27.564 INFO [stderr] 
Dec 19 19:06:27.580 INFO [stderr] warning: variable does not need to be mutable
Dec 19 19:06:27.580 INFO [stderr]  --> src/bin/p00004.rs:9:9
Dec 19 19:06:27.580 INFO [stderr]   |
Dec 19 19:06:27.580 INFO [stderr] 9 |     let mut break_again = false;
Dec 19 19:06:27.580 INFO [stderr]   |         ----^^^^^^^^^^^
Dec 19 19:06:27.580 INFO [stderr]   |         |
Dec 19 19:06:27.580 INFO [stderr]   |         help: remove this `mut`
Dec 19 19:06:27.580 INFO [stderr]   |
Dec 19 19:06:27.580 INFO [stderr]   = note: #[warn(unused_mut)] on by default
Dec 19 19:06:27.580 INFO [stderr] 
Dec 19 19:06:28.052 INFO [stderr] warning: unused variable: `break_again`
Dec 19 19:06:28.052 INFO [stderr]  --> src/bin/p00004.rs:9:13
Dec 19 19:06:28.052 INFO [stderr]   |
Dec 19 19:06:28.052 INFO [stderr] 9 |     let mut break_again = false;
Dec 19 19:06:28.052 INFO [stderr]   |             ^^^^^^^^^^^ help: consider using `_break_again` instead
Dec 19 19:06:28.068 INFO [stderr]   |
Dec 19 19:06:28.068 INFO [stderr]   = note: #[warn(unused_variables)] on by default
Dec 19 19:06:28.068 INFO [stderr] 
Dec 19 19:06:28.072 INFO [stderr] warning: variable does not need to be mutable
Dec 19 19:06:28.072 INFO [stderr]  --> src/bin/p00004.rs:9:9
Dec 19 19:06:28.072 INFO [stderr]   |
Dec 19 19:06:28.072 INFO [stderr] 9 |     let mut break_again = false;
Dec 19 19:06:28.072 INFO [stderr]   |         ----^^^^^^^^^^^
Dec 19 19:06:28.072 INFO [stderr]   |         |
Dec 19 19:06:28.072 INFO [stderr]   |         help: remove this `mut`
Dec 19 19:06:28.072 INFO [stderr]   |
Dec 19 19:06:28.072 INFO [stderr]   = note: #[warn(unused_mut)] on by default
Dec 19 19:06:28.072 INFO [stderr] 
Dec 19 19:06:28.244 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.18s
Dec 19 19:06:28.594 INFO running `"docker" "inspect" "19dec6853b3f7a153762aec55b8c51e15efa5b248cca5d9281e1c09d0681e7e3"`
Dec 19 19:06:28.683 INFO running `"docker" "rm" "-f" "19dec6853b3f7a153762aec55b8c51e15efa5b248cca5d9281e1c09d0681e7e3"`
Dec 19 19:06:28.804 INFO [stdout] 19dec6853b3f7a153762aec55b8c51e15efa5b248cca5d9281e1c09d0681e7e3