Nov 30 16:12:07.716 INFO checking rustils-0.1.0 against try#32252761328f59ccfadb1bafb8148c685bc830b3 for pr-56323
Nov 30 16:12:07.716 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56323/worker-6/try#32252761328f59ccfadb1bafb8148c685bc830b3:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-6/pr-56323/try#32252761328f59ccfadb1bafb8148c685bc830b3:/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 +32252761328f59ccfadb1bafb8148c685bc830b3-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 30 16:12:08.324 INFO [stdout] 8a35a90285a0144d4601dcd5d265c7800d879101dffe3b5b8985f0c67dc50ad4
Nov 30 16:12:08.330 INFO running `"docker" "start" "-a" "8a35a90285a0144d4601dcd5d265c7800d879101dffe3b5b8985f0c67dc50ad4"`
Nov 30 16:12:09.449 INFO [stderr] usermod: no changes
Nov 30 16:12:09.508 INFO [stderr]     Checking rustils v0.1.0 (/source)
Nov 30 16:12:11.256 INFO [stderr] warning: unused return value of `std::iter::Iterator::collect` that must be used
Nov 30 16:12:11.256 INFO [stderr]    --> src/string.rs:350:9
Nov 30 16:12:11.256 INFO [stderr]     |
Nov 30 16:12:11.256 INFO [stderr] 350 |         temp.drain(len-search.len()..len).collect::<String>();
Nov 30 16:12:11.256 INFO [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 30 16:12:11.256 INFO [stderr]     |
Nov 30 16:12:11.256 INFO [stderr]     = note: #[warn(unused_must_use)] on by default
Nov 30 16:12:11.256 INFO [stderr]     = note: if you really need to exhaust the iterator, consider `.for_each(drop)` instead
Nov 30 16:12:11.256 INFO [stderr] 
Nov 30 16:12:11.256 INFO [stderr] warning: unused return value of `std::iter::Iterator::collect` that must be used
Nov 30 16:12:11.256 INFO [stderr]    --> src/string.rs:363:9
Nov 30 16:12:11.256 INFO [stderr]     |
Nov 30 16:12:11.256 INFO [stderr] 363 |         temp.drain(..search.len()).collect::<String>();
Nov 30 16:12:11.256 INFO [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 30 16:12:11.256 INFO [stderr]     |
Nov 30 16:12:11.256 INFO [stderr]     = note: if you really need to exhaust the iterator, consider `.for_each(drop)` instead
Nov 30 16:12:11.257 INFO [stderr] 
Nov 30 16:12:11.980 INFO [stderr] warning: unused return value of `std::iter::Iterator::collect` that must be used
Nov 30 16:12:11.980 INFO [stderr]    --> src/string.rs:350:9
Nov 30 16:12:11.980 INFO [stderr]     |
Nov 30 16:12:11.980 INFO [stderr] 350 |         temp.drain(len-search.len()..len).collect::<String>();
Nov 30 16:12:11.980 INFO [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 30 16:12:11.981 INFO [stderr]     |
Nov 30 16:12:11.981 INFO [stderr]     = note: #[warn(unused_must_use)] on by default
Nov 30 16:12:11.981 INFO [stderr]     = note: if you really need to exhaust the iterator, consider `.for_each(drop)` instead
Nov 30 16:12:11.981 INFO [stderr] 
Nov 30 16:12:11.983 INFO [stderr] warning: unused return value of `std::iter::Iterator::collect` that must be used
Nov 30 16:12:11.985 INFO [stderr]    --> src/string.rs:363:9
Nov 30 16:12:11.985 INFO [stderr]     |
Nov 30 16:12:11.985 INFO [stderr] 363 |         temp.drain(..search.len()).collect::<String>();
Nov 30 16:12:11.985 INFO [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 30 16:12:11.985 INFO [stderr]     |
Nov 30 16:12:11.985 INFO [stderr]     = note: if you really need to exhaust the iterator, consider `.for_each(drop)` instead
Nov 30 16:12:11.985 INFO [stderr] 
Nov 30 16:12:19.580 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 10.08s
Nov 30 16:12:19.580 INFO [stderr] su: No module specific data is present
Nov 30 16:12:20.116 INFO running `"docker" "inspect" "8a35a90285a0144d4601dcd5d265c7800d879101dffe3b5b8985f0c67dc50ad4"`
Nov 30 16:12:20.424 INFO running `"docker" "rm" "-f" "8a35a90285a0144d4601dcd5d265c7800d879101dffe3b5b8985f0c67dc50ad4"`
Nov 30 16:12:20.864 INFO [stdout] 8a35a90285a0144d4601dcd5d265c7800d879101dffe3b5b8985f0c67dc50ad4