Dec 19 12:17:08.522 INFO checking msehnout/redesigned-chainsaw against master#d99a320cba42f661aebfa1293b7b2ec3603dda75 for pr-56955
Dec 19 12:17:08.522 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56955/worker-0/master#d99a320cba42f661aebfa1293b7b2ec3603dda75:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-56955/sources/master#d99a320cba42f661aebfa1293b7b2ec3603dda75/gh/msehnout/redesigned-chainsaw:/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 12:17:08.914 INFO [stdout] 3d47e06f257c8f5b101501c3693fb306a85815850add9496c136a010ec441948
Dec 19 12:17:08.916 INFO running `"docker" "start" "-a" "3d47e06f257c8f5b101501c3693fb306a85815850add9496c136a010ec441948"`
Dec 19 12:17:10.556 INFO [stderr]     Checking redesigned-chainsaw v0.1.0 (/opt/crater/workdir)
Dec 19 12:17:10.880 INFO [stderr] warning: variable does not need to be mutable
Dec 19 12:17:10.880 INFO [stderr]    --> src/main.rs:108:9
Dec 19 12:17:10.880 INFO [stderr]     |
Dec 19 12:17:10.880 INFO [stderr] 108 |     let mut file_name;
Dec 19 12:17:10.880 INFO [stderr]     |         ----^^^^^^^^^
Dec 19 12:17:10.880 INFO [stderr]     |         |
Dec 19 12:17:10.880 INFO [stderr]     |         help: remove this `mut`
Dec 19 12:17:10.880 INFO [stderr]     |
Dec 19 12:17:10.884 INFO [stderr]     = note: #[warn(unused_mut)] on by default
Dec 19 12:17:10.884 INFO [stderr] 
Dec 19 12:17:10.904 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 19 12:17:10.904 INFO [stderr]    --> src/main.rs:120:5
Dec 19 12:17:10.904 INFO [stderr]     |
Dec 19 12:17:10.904 INFO [stderr] 120 |     file.read_to_string(&mut tape);
Dec 19 12:17:10.904 INFO [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 19 12:17:10.904 INFO [stderr]     |
Dec 19 12:17:10.905 INFO [stderr]     = note: #[warn(unused_must_use)] on by default
Dec 19 12:17:10.905 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Dec 19 12:17:10.905 INFO [stderr] 
Dec 19 12:17:11.018 INFO [stderr] warning: variable does not need to be mutable
Dec 19 12:17:11.018 INFO [stderr]    --> src/main.rs:108:9
Dec 19 12:17:11.020 INFO [stderr]     |
Dec 19 12:17:11.020 INFO [stderr] 108 |     let mut file_name;
Dec 19 12:17:11.020 INFO [stderr]     |         ----^^^^^^^^^
Dec 19 12:17:11.020 INFO [stderr]     |         |
Dec 19 12:17:11.020 INFO [stderr]     |         help: remove this `mut`
Dec 19 12:17:11.020 INFO [stderr]     |
Dec 19 12:17:11.020 INFO [stderr]     = note: #[warn(unused_mut)] on by default
Dec 19 12:17:11.020 INFO [stderr] 
Dec 19 12:17:11.035 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 19 12:17:11.035 INFO [stderr]    --> src/main.rs:120:5
Dec 19 12:17:11.035 INFO [stderr]     |
Dec 19 12:17:11.062 INFO [stderr] 120 |     file.read_to_string(&mut tape);
Dec 19 12:17:11.062 INFO [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 19 12:17:11.062 INFO [stderr]     |
Dec 19 12:17:11.062 INFO [stderr]     = note: #[warn(unused_must_use)] on by default
Dec 19 12:17:11.062 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Dec 19 12:17:11.062 INFO [stderr] 
Dec 19 12:17:11.079 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.58s
Dec 19 12:17:11.718 INFO running `"docker" "inspect" "3d47e06f257c8f5b101501c3693fb306a85815850add9496c136a010ec441948"`
Dec 19 12:17:11.999 INFO running `"docker" "rm" "-f" "3d47e06f257c8f5b101501c3693fb306a85815850add9496c136a010ec441948"`
Dec 19 12:17:12.345 INFO [stdout] 3d47e06f257c8f5b101501c3693fb306a85815850add9496c136a010ec441948