Dec 19 12:17:07.022 INFO checking msehnout/redesigned-chainsaw against try#e70472fc501b855c9080f3772432c10fe20b8866 for pr-56955
Dec 19 12:17:07.022 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56955/worker-5/try#e70472fc501b855c9080f3772432c10fe20b8866:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-56955/sources/try#e70472fc501b855c9080f3772432c10fe20b8866/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" "+e70472fc501b855c9080f3772432c10fe20b8866-alt" "check" "--frozen" "--all" "--all-targets"`
Dec 19 12:17:07.484 INFO [stdout] 5a2d2173751ef3ed8981413c597f96418820596f16b53dc65c15e5997e8d8574
Dec 19 12:17:07.487 INFO running `"docker" "start" "-a" "5a2d2173751ef3ed8981413c597f96418820596f16b53dc65c15e5997e8d8574"`
Dec 19 12:17:09.044 INFO [stderr]     Checking redesigned-chainsaw v0.1.0 (/opt/crater/workdir)
Dec 19 12:17:09.300 INFO [stderr] warning: variable does not need to be mutable
Dec 19 12:17:09.300 INFO [stderr]    --> src/main.rs:108:9
Dec 19 12:17:09.300 INFO [stderr]     |
Dec 19 12:17:09.300 INFO [stderr] 108 |     let mut file_name;
Dec 19 12:17:09.300 INFO [stderr]     |         ----^^^^^^^^^
Dec 19 12:17:09.300 INFO [stderr]     |         |
Dec 19 12:17:09.300 INFO [stderr]     |         help: remove this `mut`
Dec 19 12:17:09.300 INFO [stderr]     |
Dec 19 12:17:09.300 INFO [stderr]     = note: #[warn(unused_mut)] on by default
Dec 19 12:17:09.300 INFO [stderr] 
Dec 19 12:17:09.300 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 19 12:17:09.300 INFO [stderr]    --> src/main.rs:120:5
Dec 19 12:17:09.300 INFO [stderr]     |
Dec 19 12:17:09.300 INFO [stderr] 120 |     file.read_to_string(&mut tape);
Dec 19 12:17:09.300 INFO [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 19 12:17:09.300 INFO [stderr]     |
Dec 19 12:17:09.304 INFO [stderr]     = note: #[warn(unused_must_use)] on by default
Dec 19 12:17:09.304 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Dec 19 12:17:09.304 INFO [stderr] 
Dec 19 12:17:09.400 INFO [stderr] warning: variable does not need to be mutable
Dec 19 12:17:09.400 INFO [stderr]    --> src/main.rs:108:9
Dec 19 12:17:09.400 INFO [stderr]     |
Dec 19 12:17:09.400 INFO [stderr] 108 |     let mut file_name;
Dec 19 12:17:09.400 INFO [stderr]     |         ----^^^^^^^^^
Dec 19 12:17:09.400 INFO [stderr]     |         |
Dec 19 12:17:09.400 INFO [stderr]     |         help: remove this `mut`
Dec 19 12:17:09.400 INFO [stderr]     |
Dec 19 12:17:09.400 INFO [stderr]     = note: #[warn(unused_mut)] on by default
Dec 19 12:17:09.400 INFO [stderr] 
Dec 19 12:17:09.400 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 19 12:17:09.400 INFO [stderr]    --> src/main.rs:120:5
Dec 19 12:17:09.400 INFO [stderr]     |
Dec 19 12:17:09.400 INFO [stderr] 120 |     file.read_to_string(&mut tape);
Dec 19 12:17:09.400 INFO [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 19 12:17:09.400 INFO [stderr]     |
Dec 19 12:17:09.400 INFO [stderr]     = note: #[warn(unused_must_use)] on by default
Dec 19 12:17:09.400 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Dec 19 12:17:09.400 INFO [stderr] 
Dec 19 12:17:09.440 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.41s
Dec 19 12:17:10.265 INFO running `"docker" "inspect" "5a2d2173751ef3ed8981413c597f96418820596f16b53dc65c15e5997e8d8574"`
Dec 19 12:17:10.498 INFO running `"docker" "rm" "-f" "5a2d2173751ef3ed8981413c597f96418820596f16b53dc65c15e5997e8d8574"`
Dec 19 12:17:10.856 INFO [stdout] 5a2d2173751ef3ed8981413c597f96418820596f16b53dc65c15e5997e8d8574