Sep 10 14:59:03.339 INFO checking luther-0.1.0 against master#f50b7758f4dc85dc1c5e38258adaa94213ac6ed1 for pr-54090
Sep 10 14:59:03.339 INFO running: cargo +f50b7758f4dc85dc1c5e38258adaa94213ac6ed1-alt check --frozen --all --all-targets
Sep 10 14:59:03.339 INFO running `"docker" "create" "-v" "/home/ec2-user/crater/./work/local/test-source/worker-2/pr-54090/master#f50b7758f4dc85dc1c5e38258adaa94213ac6ed1:/source:ro,Z" "-v" "/home/ec2-user/crater/./work/local/target-dirs/pr-54090/worker-2/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 14:59:03.570 INFO blam! b0545f6c7b54360a5a4cfb622b057750b660d239476c21383ae5988c66b05f25
Sep 10 14:59:03.573 INFO running `"docker" "start" "-a" "b0545f6c7b54360a5a4cfb622b057750b660d239476c21383ae5988c66b05f25"`
Sep 10 14:59:05.701 INFO kablam! usermod: no changes
Sep 10 14:59:05.898 INFO kablam!     Checking luther v0.1.0 (file:///source)
Sep 10 14:59:08.234 INFO kablam! warning: unused arithmetic operation which must be used
Sep 10 14:59:08.234 INFO kablam!    --> src/span.rs:132:9
Sep 10 14:59:08.234 INFO kablam!     |
Sep 10 14:59:08.234 INFO kablam! 132 |         Location::new(usize::max_value()) + 3;
Sep 10 14:59:08.234 INFO kablam!     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Sep 10 14:59:08.234 INFO kablam!     |
Sep 10 14:59:08.234 INFO kablam!     = note: #[warn(unused_must_use)] on by default
Sep 10 14:59:08.234 INFO kablam! 
Sep 10 14:59:08.293 INFO kablam!     Finished dev [unoptimized + debuginfo] target(s) in 2.56s
Sep 10 14:59:08.311 INFO kablam! su: No module specific data is present
Sep 10 14:59:09.005 INFO running `"docker" "rm" "-f" "b0545f6c7b54360a5a4cfb622b057750b660d239476c21383ae5988c66b05f25"`
Sep 10 14:59:09.138 INFO blam! b0545f6c7b54360a5a4cfb622b057750b660d239476c21383ae5988c66b05f25