Dec 17 19:13:51.348 INFO checking msehnout/redesigned-chainsaw against try#0b8c5828f68d7b2840b81fa51239346dc97fef5a for pr-54252
Dec 17 19:13:51.349 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-54252/worker-3/try#0b8c5828f68d7b2840b81fa51239346dc97fef5a:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-54252/sources/try#0b8c5828f68d7b2840b81fa51239346dc97fef5a/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" "+0b8c5828f68d7b2840b81fa51239346dc97fef5a-alt" "check" "--frozen" "--all" "--all-targets"`
Dec 17 19:13:51.764 INFO [stdout] f903f0eb49811bf24586fcccedb1900014f31714f4eeda9229ed90662287c0f6
Dec 17 19:13:51.772 INFO running `"docker" "start" "-a" "f903f0eb49811bf24586fcccedb1900014f31714f4eeda9229ed90662287c0f6"`
Dec 17 19:13:53.411 INFO [stderr]     Checking redesigned-chainsaw v0.1.0 (/opt/crater/workdir)
Dec 17 19:13:53.729 INFO [stderr] warning: variable does not need to be mutable
Dec 17 19:13:53.729 INFO [stderr]    --> src/main.rs:108:9
Dec 17 19:13:53.729 INFO [stderr]     |
Dec 17 19:13:53.729 INFO [stderr] 108 |     let mut file_name;
Dec 17 19:13:53.729 INFO [stderr]     |         ----^^^^^^^^^
Dec 17 19:13:53.729 INFO [stderr]     |         |
Dec 17 19:13:53.729 INFO [stderr]     |         help: remove this `mut`
Dec 17 19:13:53.729 INFO [stderr]     |
Dec 17 19:13:53.729 INFO [stderr]     = note: #[warn(unused_mut)] on by default
Dec 17 19:13:53.729 INFO [stderr] 
Dec 17 19:13:53.735 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 17 19:13:53.735 INFO [stderr]    --> src/main.rs:120:5
Dec 17 19:13:53.735 INFO [stderr]     |
Dec 17 19:13:53.735 INFO [stderr] 120 |     file.read_to_string(&mut tape);
Dec 17 19:13:53.735 INFO [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 17 19:13:53.735 INFO [stderr]     |
Dec 17 19:13:53.735 INFO [stderr]     = note: #[warn(unused_must_use)] on by default
Dec 17 19:13:53.735 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Dec 17 19:13:53.735 INFO [stderr] 
Dec 17 19:13:53.769 INFO [stderr] warning: variable does not need to be mutable
Dec 17 19:13:53.769 INFO [stderr]    --> src/main.rs:108:9
Dec 17 19:13:53.769 INFO [stderr]     |
Dec 17 19:13:53.769 INFO [stderr] 108 |     let mut file_name;
Dec 17 19:13:53.769 INFO [stderr]     |         ----^^^^^^^^^
Dec 17 19:13:53.769 INFO [stderr]     |         |
Dec 17 19:13:53.769 INFO [stderr]     |         help: remove this `mut`
Dec 17 19:13:53.769 INFO [stderr]     |
Dec 17 19:13:53.769 INFO [stderr]     = note: #[warn(unused_mut)] on by default
Dec 17 19:13:53.769 INFO [stderr] 
Dec 17 19:13:53.769 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 17 19:13:53.769 INFO [stderr]    --> src/main.rs:120:5
Dec 17 19:13:53.769 INFO [stderr]     |
Dec 17 19:13:53.769 INFO [stderr] 120 |     file.read_to_string(&mut tape);
Dec 17 19:13:53.769 INFO [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 17 19:13:53.769 INFO [stderr]     |
Dec 17 19:13:53.769 INFO [stderr]     = note: #[warn(unused_must_use)] on by default
Dec 17 19:13:53.769 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Dec 17 19:13:53.769 INFO [stderr] 
Dec 17 19:13:53.808 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.42s
Dec 17 19:13:54.663 INFO running `"docker" "inspect" "f903f0eb49811bf24586fcccedb1900014f31714f4eeda9229ed90662287c0f6"`
Dec 17 19:13:54.943 INFO running `"docker" "rm" "-f" "f903f0eb49811bf24586fcccedb1900014f31714f4eeda9229ed90662287c0f6"`
Dec 17 19:13:55.232 INFO [stdout] f903f0eb49811bf24586fcccedb1900014f31714f4eeda9229ed90662287c0f6