Dec 19 20:14:56.685 INFO checking athaeryn/impsort against try#e70472fc501b855c9080f3772432c10fe20b8866 for pr-56955
Dec 19 20:14:56.685 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56955/worker-0/try#e70472fc501b855c9080f3772432c10fe20b8866:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-56955/sources/try#e70472fc501b855c9080f3772432c10fe20b8866/gh/athaeryn/impsort:/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 20:14:56.863 INFO [stdout] f9f9ddc49ffd0c6204795d2670a64a558f3e335ba626a68a84ff2e160b702f0d
Dec 19 20:14:56.865 INFO running `"docker" "start" "-a" "f9f9ddc49ffd0c6204795d2670a64a558f3e335ba626a68a84ff2e160b702f0d"`
Dec 19 20:14:57.424 INFO [stderr]     Checking impsort v0.1.0 (/opt/crater/workdir)
Dec 19 20:14:57.630 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 19 20:14:57.630 INFO [stderr]  --> src/main.rs:6:5
Dec 19 20:14:57.630 INFO [stderr]   |
Dec 19 20:14:57.630 INFO [stderr] 6 |     io::stdin().read_to_string(&mut buffer);
Dec 19 20:14:57.630 INFO [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 19 20:14:57.630 INFO [stderr]   |
Dec 19 20:14:57.630 INFO [stderr]   = note: #[warn(unused_must_use)] on by default
Dec 19 20:14:57.630 INFO [stderr]   = note: this `Result` may be an `Err` variant, which should be handled
Dec 19 20:14:57.630 INFO [stderr] 
Dec 19 20:14:57.658 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 19 20:14:57.658 INFO [stderr]  --> src/main.rs:6:5
Dec 19 20:14:57.658 INFO [stderr]   |
Dec 19 20:14:57.658 INFO [stderr] 6 |     io::stdin().read_to_string(&mut buffer);
Dec 19 20:14:57.658 INFO [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 19 20:14:57.658 INFO [stderr]   |
Dec 19 20:14:57.658 INFO [stderr]   = note: #[warn(unused_must_use)] on by default
Dec 19 20:14:57.658 INFO [stderr]   = note: this `Result` may be an `Err` variant, which should be handled
Dec 19 20:14:57.658 INFO [stderr] 
Dec 19 20:14:57.671 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.26s
Dec 19 20:14:57.880 INFO running `"docker" "inspect" "f9f9ddc49ffd0c6204795d2670a64a558f3e335ba626a68a84ff2e160b702f0d"`
Dec 19 20:14:57.990 INFO running `"docker" "rm" "-f" "f9f9ddc49ffd0c6204795d2670a64a558f3e335ba626a68a84ff2e160b702f0d"`
Dec 19 20:14:58.075 INFO [stdout] f9f9ddc49ffd0c6204795d2670a64a558f3e335ba626a68a84ff2e160b702f0d