Dec 18 16:21:58.630 INFO checking frust-0.0.7 against master#96d1334e567237b1507cd277938e7ae2de75ff51 for pr-54252
Dec 18 16:21:58.630 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-54252/worker-4/master#96d1334e567237b1507cd277938e7ae2de75ff51:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-54252/sources/master#96d1334e567237b1507cd277938e7ae2de75ff51/reg/frust/0.0.7:/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" "+96d1334e567237b1507cd277938e7ae2de75ff51-alt" "check" "--frozen" "--all" "--all-targets"`
Dec 18 16:21:58.878 INFO [stdout] ab2e74b162e719204ff3c53efd6a8bbedb7905e372ebe55d7adfa3938160be0b
Dec 18 16:21:58.882 INFO running `"docker" "start" "-a" "ab2e74b162e719204ff3c53efd6a8bbedb7905e372ebe55d7adfa3938160be0b"`
Dec 18 16:21:59.564 INFO [stderr]     Checking frust v0.0.7 (/opt/crater/workdir)
Dec 18 16:22:00.006 INFO [stderr] warning: unused import: `std::collections::*`
Dec 18 16:22:00.006 INFO [stderr]    --> src/semigroup.rs:313:9
Dec 18 16:22:00.006 INFO [stderr]     |
Dec 18 16:22:00.006 INFO [stderr] 313 |     use std::collections::*;
Dec 18 16:22:00.006 INFO [stderr]     |         ^^^^^^^^^^^^^^^^^^^
Dec 18 16:22:00.006 INFO [stderr]     |
Dec 18 16:22:00.007 INFO [stderr]     = note: #[warn(unused_imports)] on by default
Dec 18 16:22:00.007 INFO [stderr] 
Dec 18 16:22:00.007 INFO [stderr] warning: unused import: `std::cell::*`
Dec 18 16:22:00.007 INFO [stderr]    --> src/semigroup.rs:314:9
Dec 18 16:22:00.007 INFO [stderr]     |
Dec 18 16:22:00.007 INFO [stderr] 314 |     use std::cell::*;
Dec 18 16:22:00.007 INFO [stderr]     |         ^^^^^^^^^^^^
Dec 18 16:22:00.007 INFO [stderr] 
Dec 18 16:22:00.008 INFO [stderr] warning: unused import: `std::collections::*`
Dec 18 16:22:00.008 INFO [stderr]    --> src/monoid.rs:226:9
Dec 18 16:22:00.008 INFO [stderr]     |
Dec 18 16:22:00.008 INFO [stderr] 226 |     use std::collections::*;
Dec 18 16:22:00.008 INFO [stderr]     |         ^^^^^^^^^^^^^^^^^^^
Dec 18 16:22:00.008 INFO [stderr] 
Dec 18 16:22:01.274 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.72s
Dec 18 16:22:02.202 INFO running `"docker" "inspect" "ab2e74b162e719204ff3c53efd6a8bbedb7905e372ebe55d7adfa3938160be0b"`
Dec 18 16:22:02.450 INFO running `"docker" "rm" "-f" "ab2e74b162e719204ff3c53efd6a8bbedb7905e372ebe55d7adfa3938160be0b"`
Dec 18 16:22:02.684 INFO [stdout] ab2e74b162e719204ff3c53efd6a8bbedb7905e372ebe55d7adfa3938160be0b