Dec 05 07:19:32.927 INFO checking rustils-0.1.0 against master#c8ae2de8363be088604ffa2ccba84ff7ad7250bc for pr-56481
Dec 05 07:19:32.927 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56481/worker-0/master#c8ae2de8363be088604ffa2ccba84ff7ad7250bc:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-0/pr-56481/master#c8ae2de8363be088604ffa2ccba84ff7ad7250bc:/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 +c8ae2de8363be088604ffa2ccba84ff7ad7250bc-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"`
Dec 05 07:19:33.217 INFO [stdout] 23e32d7b7467472a03aee8d857a88af9fdedb868d9c30f4b411dbec0d34aec51
Dec 05 07:19:33.220 INFO running `"docker" "start" "-a" "23e32d7b7467472a03aee8d857a88af9fdedb868d9c30f4b411dbec0d34aec51"`
Dec 05 07:19:34.309 INFO [stderr] usermod: no changes
Dec 05 07:19:34.420 INFO [stderr]     Checking rustils v0.1.0 (/source)
Dec 05 07:19:36.871 INFO [stderr] warning: unused return value of `std::iter::Iterator::collect` that must be used
Dec 05 07:19:36.871 INFO [stderr]    --> src/string.rs:350:9
Dec 05 07:19:36.871 INFO [stderr]     |
Dec 05 07:19:36.871 INFO [stderr] 350 |         temp.drain(len-search.len()..len).collect::<String>();
Dec 05 07:19:36.871 INFO [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 05 07:19:36.871 INFO [stderr]     |
Dec 05 07:19:36.871 INFO [stderr]     = note: #[warn(unused_must_use)] on by default
Dec 05 07:19:36.871 INFO [stderr]     = note: if you really need to exhaust the iterator, consider `.for_each(drop)` instead
Dec 05 07:19:36.871 INFO [stderr] 
Dec 05 07:19:36.871 INFO [stderr] warning: unused return value of `std::iter::Iterator::collect` that must be used
Dec 05 07:19:36.871 INFO [stderr]    --> src/string.rs:363:9
Dec 05 07:19:36.871 INFO [stderr]     |
Dec 05 07:19:36.871 INFO [stderr] 363 |         temp.drain(..search.len()).collect::<String>();
Dec 05 07:19:36.871 INFO [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 05 07:19:36.871 INFO [stderr]     |
Dec 05 07:19:36.871 INFO [stderr]     = note: if you really need to exhaust the iterator, consider `.for_each(drop)` instead
Dec 05 07:19:36.871 INFO [stderr] 
Dec 05 07:19:37.699 INFO [stderr] warning: unused return value of `std::iter::Iterator::collect` that must be used
Dec 05 07:19:37.699 INFO [stderr]    --> src/string.rs:350:9
Dec 05 07:19:37.699 INFO [stderr]     |
Dec 05 07:19:37.699 INFO [stderr] 350 |         temp.drain(len-search.len()..len).collect::<String>();
Dec 05 07:19:37.699 INFO [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 05 07:19:37.699 INFO [stderr]     |
Dec 05 07:19:37.699 INFO [stderr]     = note: #[warn(unused_must_use)] on by default
Dec 05 07:19:37.699 INFO [stderr]     = note: if you really need to exhaust the iterator, consider `.for_each(drop)` instead
Dec 05 07:19:37.699 INFO [stderr] 
Dec 05 07:19:37.699 INFO [stderr] warning: unused return value of `std::iter::Iterator::collect` that must be used
Dec 05 07:19:37.699 INFO [stderr]    --> src/string.rs:363:9
Dec 05 07:19:37.699 INFO [stderr]     |
Dec 05 07:19:37.699 INFO [stderr] 363 |         temp.drain(..search.len()).collect::<String>();
Dec 05 07:19:37.699 INFO [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 05 07:19:37.699 INFO [stderr]     |
Dec 05 07:19:37.699 INFO [stderr]     = note: if you really need to exhaust the iterator, consider `.for_each(drop)` instead
Dec 05 07:19:37.699 INFO [stderr] 
Dec 05 07:19:45.198 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 10.84s
Dec 05 07:19:45.203 INFO [stderr] su: No module specific data is present
Dec 05 07:19:46.077 INFO running `"docker" "inspect" "23e32d7b7467472a03aee8d857a88af9fdedb868d9c30f4b411dbec0d34aec51"`
Dec 05 07:19:46.377 INFO running `"docker" "rm" "-f" "23e32d7b7467472a03aee8d857a88af9fdedb868d9c30f4b411dbec0d34aec51"`
Dec 05 07:19:46.655 INFO [stdout] 23e32d7b7467472a03aee8d857a88af9fdedb868d9c30f4b411dbec0d34aec51