Sep 10 10:34:39.265 INFO checking rustils-0.1.0 against master#f50b7758f4dc85dc1c5e38258adaa94213ac6ed1 for pr-54090
Sep 10 10:34:39.265 INFO running: cargo +f50b7758f4dc85dc1c5e38258adaa94213ac6ed1-alt check --frozen --all --all-targets
Sep 10 10:34:39.265 INFO running `"docker" "create" "-v" "/home/ec2-user/crater/./work/local/test-source/worker-0/pr-54090/master#f50b7758f4dc85dc1c5e38258adaa94213ac6ed1:/source:ro,Z" "-v" "/home/ec2-user/crater/./work/local/target-dirs/pr-54090/worker-0/master#f50b7758f4dc85dc1c5e38258adaa94213ac6ed1:/target:rw,Z" "-v" "/home/ec2-user/crater/./work/local/cargo-home:/cargo-home:ro,Z" "-v" "/home/ec2-user/crater/./work/local/rustup-home:/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "CMD=cargo +f50b7758f4dc85dc1c5e38258adaa94213ac6ed1-alt check --frozen --all --all-targets" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-m" "2G" "crater"`
Sep 10 10:34:39.459 INFO blam! bf665175decc75af779096e5f49d24d4f8a6f6a5956becaf0e9b433b0855ecb4
Sep 10 10:34:39.461 INFO running `"docker" "start" "-a" "bf665175decc75af779096e5f49d24d4f8a6f6a5956becaf0e9b433b0855ecb4"`
Sep 10 10:34:40.502 INFO kablam! usermod: no changes
Sep 10 10:34:40.568 INFO kablam!     Checking rustils v0.1.0 (file:///source)
Sep 10 10:34:42.264 INFO kablam! warning: unused return value of `std::iter::Iterator::collect` which must be used
Sep 10 10:34:42.264 INFO kablam!    --> src/string.rs:350:9
Sep 10 10:34:42.264 INFO kablam!     |
Sep 10 10:34:42.264 INFO kablam! 350 |         temp.drain(len-search.len()..len).collect::<String>();
Sep 10 10:34:42.264 INFO kablam!     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Sep 10 10:34:42.274 INFO kablam!     |
Sep 10 10:34:42.274 INFO kablam!     = note: #[warn(unused_must_use)] on by default
Sep 10 10:34:42.274 INFO kablam!     = note: if you really need to exhaust the iterator, consider `.for_each(drop)` instead
Sep 10 10:34:42.274 INFO kablam! 
Sep 10 10:34:42.274 INFO kablam! warning: unused return value of `std::iter::Iterator::collect` which must be used
Sep 10 10:34:42.274 INFO kablam!    --> src/string.rs:363:9
Sep 10 10:34:42.274 INFO kablam!     |
Sep 10 10:34:42.274 INFO kablam! 363 |         temp.drain(..search.len()).collect::<String>();
Sep 10 10:34:42.274 INFO kablam!     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Sep 10 10:34:42.274 INFO kablam!     |
Sep 10 10:34:42.274 INFO kablam!     = note: if you really need to exhaust the iterator, consider `.for_each(drop)` instead
Sep 10 10:34:42.275 INFO kablam! 
Sep 10 10:34:43.798 INFO kablam! warning: unused return value of `std::iter::Iterator::collect` which must be used
Sep 10 10:34:43.798 INFO kablam!    --> src/string.rs:350:9
Sep 10 10:34:43.798 INFO kablam!     |
Sep 10 10:34:43.798 INFO kablam! 350 |         temp.drain(len-search.len()..len).collect::<String>();
Sep 10 10:34:43.798 INFO kablam!     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Sep 10 10:34:43.798 INFO kablam!     |
Sep 10 10:34:43.798 INFO kablam!     = note: #[warn(unused_must_use)] on by default
Sep 10 10:34:43.798 INFO kablam!     = note: if you really need to exhaust the iterator, consider `.for_each(drop)` instead
Sep 10 10:34:43.798 INFO kablam! 
Sep 10 10:34:43.798 INFO kablam! warning: unused return value of `std::iter::Iterator::collect` which must be used
Sep 10 10:34:43.798 INFO kablam!    --> src/string.rs:363:9
Sep 10 10:34:43.798 INFO kablam!     |
Sep 10 10:34:43.798 INFO kablam! 363 |         temp.drain(..search.len()).collect::<String>();
Sep 10 10:34:43.798 INFO kablam!     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Sep 10 10:34:43.798 INFO kablam!     |
Sep 10 10:34:43.798 INFO kablam!     = note: if you really need to exhaust the iterator, consider `.for_each(drop)` instead
Sep 10 10:34:43.798 INFO kablam! 
Sep 10 10:34:49.386 INFO kablam!     Finished dev [unoptimized + debuginfo] target(s) in 8.86s
Sep 10 10:34:49.392 INFO kablam! su: No module specific data is present
Sep 10 10:34:50.837 INFO running `"docker" "rm" "-f" "bf665175decc75af779096e5f49d24d4f8a6f6a5956becaf0e9b433b0855ecb4"`
Sep 10 10:34:50.949 INFO blam! bf665175decc75af779096e5f49d24d4f8a6f6a5956becaf0e9b433b0855ecb4