Sep 02 08:12:46.059 INFO checking luther-0.1.0 against master#1114ab684fbad001c4e580326d8eb4d8c4e917d3 for pr-53851
Sep 02 08:12:46.059 INFO running: cargo +1114ab684fbad001c4e580326d8eb4d8c4e917d3-alt check --frozen --all --all-targets
Sep 02 08:12:46.059 INFO running `"docker" "create" "-v" "/home/ec2-user/crater/./work/local/test-source/worker-0/pr-53851/master#1114ab684fbad001c4e580326d8eb4d8c4e917d3:/source:ro,Z" "-v" "/home/ec2-user/crater/./work/local/target-dirs/pr-53851/worker-0/master#1114ab684fbad001c4e580326d8eb4d8c4e917d3:/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 +1114ab684fbad001c4e580326d8eb4d8c4e917d3-alt check --frozen --all --all-targets" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-m" "2G" "crater"`
Sep 02 08:12:46.306 INFO blam! 0135f6e54adb76da1eaf823e5dafc3c15e107784f08347e598ce683a285f81a4
Sep 02 08:12:46.308 INFO running `"docker" "start" "-a" "0135f6e54adb76da1eaf823e5dafc3c15e107784f08347e598ce683a285f81a4"`
Sep 02 08:12:47.309 INFO kablam!     Checking luther v0.1.0 (file:///source)
Sep 02 08:12:51.026 INFO kablam! warning: unused arithmetic operation which must be used
Sep 02 08:12:51.026 INFO kablam!    --> src/span.rs:132:9
Sep 02 08:12:51.026 INFO kablam!     |
Sep 02 08:12:51.026 INFO kablam! 132 |         Location::new(usize::max_value()) + 3;
Sep 02 08:12:51.026 INFO kablam!     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Sep 02 08:12:51.026 INFO kablam!     |
Sep 02 08:12:51.026 INFO kablam!     = note: #[warn(unused_must_use)] on by default
Sep 02 08:12:51.026 INFO kablam! 
Sep 02 08:12:51.104 INFO kablam!     Finished dev [unoptimized + debuginfo] target(s) in 3.93s
Sep 02 08:12:51.113 INFO kablam! su: No module specific data is present
Sep 02 08:12:51.677 INFO running `"docker" "rm" "-f" "0135f6e54adb76da1eaf823e5dafc3c15e107784f08347e598ce683a285f81a4"`
Sep 02 08:12:51.849 INFO blam! 0135f6e54adb76da1eaf823e5dafc3c15e107784f08347e598ce683a285f81a4