Dec 18 11:42:45.768 INFO checking rustils-0.1.0 against try#0b8c5828f68d7b2840b81fa51239346dc97fef5a for pr-54252
Dec 18 11:42:45.769 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-54252/worker-1/try#0b8c5828f68d7b2840b81fa51239346dc97fef5a:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-54252/sources/try#0b8c5828f68d7b2840b81fa51239346dc97fef5a/reg/rustils/0.1.0:/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 18 11:42:46.052 INFO [stdout] 4e14ff7aca0d59ed33da920d5ea4ac4989ac6530fe60bdc141fa9ea0390d1ebb
Dec 18 11:42:46.054 INFO running `"docker" "start" "-a" "4e14ff7aca0d59ed33da920d5ea4ac4989ac6530fe60bdc141fa9ea0390d1ebb"`
Dec 18 11:42:47.296 INFO [stderr]     Checking rustils v0.1.0 (/opt/crater/workdir)
Dec 18 11:42:48.376 INFO [stderr] warning: unused return value of `std::iter::Iterator::collect` that must be used
Dec 18 11:42:48.376 INFO [stderr]    --> src/string.rs:350:9
Dec 18 11:42:48.376 INFO [stderr]     |
Dec 18 11:42:48.376 INFO [stderr] 350 |         temp.drain(len-search.len()..len).collect::<String>();
Dec 18 11:42:48.376 INFO [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 18 11:42:48.376 INFO [stderr]     |
Dec 18 11:42:48.376 INFO [stderr]     = note: #[warn(unused_must_use)] on by default
Dec 18 11:42:48.376 INFO [stderr]     = note: if you really need to exhaust the iterator, consider `.for_each(drop)` instead
Dec 18 11:42:48.376 INFO [stderr] 
Dec 18 11:42:48.376 INFO [stderr] warning: unused return value of `std::iter::Iterator::collect` that must be used
Dec 18 11:42:48.376 INFO [stderr]    --> src/string.rs:363:9
Dec 18 11:42:48.376 INFO [stderr]     |
Dec 18 11:42:48.376 INFO [stderr] 363 |         temp.drain(..search.len()).collect::<String>();
Dec 18 11:42:48.376 INFO [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 18 11:42:48.376 INFO [stderr]     |
Dec 18 11:42:48.376 INFO [stderr]     = note: if you really need to exhaust the iterator, consider `.for_each(drop)` instead
Dec 18 11:42:48.376 INFO [stderr] 
Dec 18 11:42:48.496 INFO [stderr] warning: unused return value of `std::iter::Iterator::collect` that must be used
Dec 18 11:42:48.496 INFO [stderr]    --> src/string.rs:350:9
Dec 18 11:42:48.496 INFO [stderr]     |
Dec 18 11:42:48.496 INFO [stderr] 350 |         temp.drain(len-search.len()..len).collect::<String>();
Dec 18 11:42:48.496 INFO [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 18 11:42:48.496 INFO [stderr]     |
Dec 18 11:42:48.496 INFO [stderr]     = note: #[warn(unused_must_use)] on by default
Dec 18 11:42:48.496 INFO [stderr]     = note: if you really need to exhaust the iterator, consider `.for_each(drop)` instead
Dec 18 11:42:48.496 INFO [stderr] 
Dec 18 11:42:48.496 INFO [stderr] warning: unused return value of `std::iter::Iterator::collect` that must be used
Dec 18 11:42:48.496 INFO [stderr]    --> src/string.rs:363:9
Dec 18 11:42:48.496 INFO [stderr]     |
Dec 18 11:42:48.496 INFO [stderr] 363 |         temp.drain(..search.len()).collect::<String>();
Dec 18 11:42:48.496 INFO [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 18 11:42:48.496 INFO [stderr]     |
Dec 18 11:42:48.496 INFO [stderr]     = note: if you really need to exhaust the iterator, consider `.for_each(drop)` instead
Dec 18 11:42:48.496 INFO [stderr] 
Dec 18 11:42:53.441 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 6.18s
Dec 18 11:42:54.341 INFO running `"docker" "inspect" "4e14ff7aca0d59ed33da920d5ea4ac4989ac6530fe60bdc141fa9ea0390d1ebb"`
Dec 18 11:42:54.550 INFO running `"docker" "rm" "-f" "4e14ff7aca0d59ed33da920d5ea4ac4989ac6530fe60bdc141fa9ea0390d1ebb"`
Dec 18 11:42:54.721 INFO [stdout] 4e14ff7aca0d59ed33da920d5ea4ac4989ac6530fe60bdc141fa9ea0390d1ebb