Sep 01 07:55:53.071 INFO checking rustils-0.1.0 against try#aa245a5862056b681d2ccdb178f58891108cd3a6 for pr-53831
Sep 01 07:55:53.071 INFO running: cargo +aa245a5862056b681d2ccdb178f58891108cd3a6-alt check --frozen --all --all-targets
Sep 01 07:55:53.071 INFO running `"docker" "create" "-v" "/home/ec2-user/crater/./work/local/test-source/worker-2/pr-53831/try#aa245a5862056b681d2ccdb178f58891108cd3a6:/source:ro,Z" "-v" "/home/ec2-user/crater/./work/local/target-dirs/pr-53831/worker-2/try#aa245a5862056b681d2ccdb178f58891108cd3a6:/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=500" "-e" "CMD=cargo +aa245a5862056b681d2ccdb178f58891108cd3a6-alt check --frozen --all --all-targets" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-m" "2G" "crater"`
Sep 01 07:55:53.249 INFO blam! 263a57128761dedc16c146766260d32d36f8a0a720767e9324899ee7f755512b
Sep 01 07:55:53.249 INFO running `"docker" "start" "-a" "263a57128761dedc16c146766260d32d36f8a0a720767e9324899ee7f755512b"`
Sep 01 07:55:54.063 INFO kablam!     Checking rustils v0.1.0 (file:///source)
Sep 01 07:55:56.483 INFO kablam! warning: unused return value of `std::iter::Iterator::collect` which must be used
Sep 01 07:55:56.483 INFO kablam!    --> src/string.rs:350:9
Sep 01 07:55:56.483 INFO kablam!     |
Sep 01 07:55:56.483 INFO kablam! 350 |         temp.drain(len-search.len()..len).collect::<String>();
Sep 01 07:55:56.483 INFO kablam!     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Sep 01 07:55:56.483 INFO kablam!     |
Sep 01 07:55:56.483 INFO kablam!     = note: #[warn(unused_must_use)] on by default
Sep 01 07:55:56.483 INFO kablam!     = note: if you really need to exhaust the iterator, consider `.for_each(drop)` instead
Sep 01 07:55:56.483 INFO kablam! 
Sep 01 07:55:56.483 INFO kablam! warning: unused return value of `std::iter::Iterator::collect` which must be used
Sep 01 07:55:56.483 INFO kablam!    --> src/string.rs:363:9
Sep 01 07:55:56.483 INFO kablam!     |
Sep 01 07:55:56.483 INFO kablam! 363 |         temp.drain(..search.len()).collect::<String>();
Sep 01 07:55:56.483 INFO kablam!     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Sep 01 07:55:56.483 INFO kablam!     |
Sep 01 07:55:56.483 INFO kablam!     = note: if you really need to exhaust the iterator, consider `.for_each(drop)` instead
Sep 01 07:55:56.483 INFO kablam! 
Sep 01 07:55:56.522 INFO kablam! warning: unused return value of `std::iter::Iterator::collect` which must be used
Sep 01 07:55:56.522 INFO kablam!    --> src/string.rs:350:9
Sep 01 07:55:56.522 INFO kablam!     |
Sep 01 07:55:56.522 INFO kablam! 350 |         temp.drain(len-search.len()..len).collect::<String>();
Sep 01 07:55:56.522 INFO kablam!     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Sep 01 07:55:56.522 INFO kablam!     |
Sep 01 07:55:56.522 INFO kablam!     = note: #[warn(unused_must_use)] on by default
Sep 01 07:55:56.522 INFO kablam!     = note: if you really need to exhaust the iterator, consider `.for_each(drop)` instead
Sep 01 07:55:56.522 INFO kablam! 
Sep 01 07:55:56.522 INFO kablam! warning: unused return value of `std::iter::Iterator::collect` which must be used
Sep 01 07:55:56.522 INFO kablam!    --> src/string.rs:363:9
Sep 01 07:55:56.522 INFO kablam!     |
Sep 01 07:55:56.522 INFO kablam! 363 |         temp.drain(..search.len()).collect::<String>();
Sep 01 07:55:56.522 INFO kablam!     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Sep 01 07:55:56.522 INFO kablam!     |
Sep 01 07:55:56.522 INFO kablam!     = note: if you really need to exhaust the iterator, consider `.for_each(drop)` instead
Sep 01 07:55:56.522 INFO kablam! 
Sep 01 07:56:03.011 INFO kablam!     Finished dev [unoptimized + debuginfo] target(s) in 9.01s
Sep 01 07:56:03.020 INFO kablam! su: No module specific data is present
Sep 01 07:56:03.534 INFO running `"docker" "rm" "-f" "263a57128761dedc16c146766260d32d36f8a0a720767e9324899ee7f755512b"`
Sep 01 07:56:03.634 INFO blam! 263a57128761dedc16c146766260d32d36f8a0a720767e9324899ee7f755512b