Sep 10 14:59:02.721 INFO checking luther-0.1.0 against try#3a2610c2a16575649896925631bf8cec4f4b1961 for pr-54090
Sep 10 14:59:02.721 INFO running: cargo +3a2610c2a16575649896925631bf8cec4f4b1961-alt check --frozen --all --all-targets
Sep 10 14:59:02.722 INFO running `"docker" "create" "-v" "/home/ec2-user/crater/./work/local/test-source/worker-7/pr-54090/try#3a2610c2a16575649896925631bf8cec4f4b1961:/source:ro,Z" "-v" "/home/ec2-user/crater/./work/local/target-dirs/pr-54090/worker-7/try#3a2610c2a16575649896925631bf8cec4f4b1961:/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 +3a2610c2a16575649896925631bf8cec4f4b1961-alt check --frozen --all --all-targets" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-m" "2G" "crater"`
Sep 10 14:59:02.958 INFO blam! 3b343416c6c50717951cd46c5e594bb399e6654ae9f3e1aea4ebae8185a59225
Sep 10 14:59:02.962 INFO running `"docker" "start" "-a" "3b343416c6c50717951cd46c5e594bb399e6654ae9f3e1aea4ebae8185a59225"`
Sep 10 14:59:04.286 INFO kablam! usermod: no changes
Sep 10 14:59:04.494 INFO kablam!     Checking luther v0.1.0 (file:///source)
Sep 10 14:59:07.614 INFO kablam! warning: unused arithmetic operation which must be used
Sep 10 14:59:07.614 INFO kablam!    --> src/span.rs:132:9
Sep 10 14:59:07.614 INFO kablam!     |
Sep 10 14:59:07.614 INFO kablam! 132 |         Location::new(usize::max_value()) + 3;
Sep 10 14:59:07.614 INFO kablam!     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Sep 10 14:59:07.614 INFO kablam!     |
Sep 10 14:59:07.614 INFO kablam!     = note: #[warn(unused_must_use)] on by default
Sep 10 14:59:07.614 INFO kablam! 
Sep 10 14:59:07.690 INFO kablam!     Finished dev [unoptimized + debuginfo] target(s) in 3.37s
Sep 10 14:59:07.698 INFO kablam! su: No module specific data is present
Sep 10 14:59:08.597 INFO running `"docker" "rm" "-f" "3b343416c6c50717951cd46c5e594bb399e6654ae9f3e1aea4ebae8185a59225"`
Sep 10 14:59:08.700 INFO blam! 3b343416c6c50717951cd46c5e594bb399e6654ae9f3e1aea4ebae8185a59225