Nov 28 18:44:00.743 INFO checking rustils-0.1.0 against master#0b9f19dff1347e29bf4362ab5a8fab84b43023b5 for pr-56074
Nov 28 18:44:00.743 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56074/worker-2/master#0b9f19dff1347e29bf4362ab5a8fab84b43023b5:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-2/pr-56074/master#0b9f19dff1347e29bf4362ab5a8fab84b43023b5:/source:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/source" "-e" "USER_ID=1000" "-e" "CMD=cargo +0b9f19dff1347e29bf4362ab5a8fab84b43023b5-alt check --frozen --all --all-targets" "-e" "CARGO_TARGET_DIR=/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/cargo-home" "-e" "RUSTUP_HOME=/rustup-home" "-m" "1536M" "--network" "none" "crater"`
Nov 28 18:44:01.198 INFO [stdout] a8999d5ea551367ba753023ab67c9eb43145778eb916f7e12d68c475f7446e47
Nov 28 18:44:01.200 INFO running `"docker" "start" "-a" "a8999d5ea551367ba753023ab67c9eb43145778eb916f7e12d68c475f7446e47"`
Nov 28 18:44:03.051 INFO [stderr] usermod: no changes
Nov 28 18:44:03.188 INFO [stderr]     Checking rustils v0.1.0 (/source)
Nov 28 18:44:05.711 INFO [stderr] warning: unused return value of `std::iter::Iterator::collect` that must be used
Nov 28 18:44:05.711 INFO [stderr]    --> src/string.rs:350:9
Nov 28 18:44:05.711 INFO [stderr]     |
Nov 28 18:44:05.711 INFO [stderr] 350 |         temp.drain(len-search.len()..len).collect::<String>();
Nov 28 18:44:05.711 INFO [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 28 18:44:05.711 INFO [stderr]     |
Nov 28 18:44:05.711 INFO [stderr]     = note: #[warn(unused_must_use)] on by default
Nov 28 18:44:05.711 INFO [stderr]     = note: if you really need to exhaust the iterator, consider `.for_each(drop)` instead
Nov 28 18:44:05.711 INFO [stderr] 
Nov 28 18:44:05.711 INFO [stderr] warning: unused return value of `std::iter::Iterator::collect` that must be used
Nov 28 18:44:05.711 INFO [stderr]    --> src/string.rs:363:9
Nov 28 18:44:05.711 INFO [stderr]     |
Nov 28 18:44:05.711 INFO [stderr] 363 |         temp.drain(..search.len()).collect::<String>();
Nov 28 18:44:05.712 INFO [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 28 18:44:05.712 INFO [stderr]     |
Nov 28 18:44:05.712 INFO [stderr]     = note: if you really need to exhaust the iterator, consider `.for_each(drop)` instead
Nov 28 18:44:05.712 INFO [stderr] 
Nov 28 18:44:05.968 INFO [stderr] warning: unused return value of `std::iter::Iterator::collect` that must be used
Nov 28 18:44:05.968 INFO [stderr]    --> src/string.rs:350:9
Nov 28 18:44:05.968 INFO [stderr]     |
Nov 28 18:44:05.968 INFO [stderr] 350 |         temp.drain(len-search.len()..len).collect::<String>();
Nov 28 18:44:05.968 INFO [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 28 18:44:05.968 INFO [stderr]     |
Nov 28 18:44:05.968 INFO [stderr]     = note: #[warn(unused_must_use)] on by default
Nov 28 18:44:05.968 INFO [stderr]     = note: if you really need to exhaust the iterator, consider `.for_each(drop)` instead
Nov 28 18:44:05.968 INFO [stderr] 
Nov 28 18:44:05.968 INFO [stderr] warning: unused return value of `std::iter::Iterator::collect` that must be used
Nov 28 18:44:05.968 INFO [stderr]    --> src/string.rs:363:9
Nov 28 18:44:05.968 INFO [stderr]     |
Nov 28 18:44:05.968 INFO [stderr] 363 |         temp.drain(..search.len()).collect::<String>();
Nov 28 18:44:05.968 INFO [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 28 18:44:05.968 INFO [stderr]     |
Nov 28 18:44:05.968 INFO [stderr]     = note: if you really need to exhaust the iterator, consider `.for_each(drop)` instead
Nov 28 18:44:05.968 INFO [stderr] 
Nov 28 18:44:12.372 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 9.27s
Nov 28 18:44:12.384 INFO [stderr] su: No module specific data is present
Nov 28 18:44:12.984 INFO running `"docker" "inspect" "a8999d5ea551367ba753023ab67c9eb43145778eb916f7e12d68c475f7446e47"`
Nov 28 18:44:13.359 INFO running `"docker" "rm" "-f" "a8999d5ea551367ba753023ab67c9eb43145778eb916f7e12d68c475f7446e47"`
Nov 28 18:44:13.700 INFO [stdout] a8999d5ea551367ba753023ab67c9eb43145778eb916f7e12d68c475f7446e47