Sep 14 13:29:59.854 INFO checking luther-0.1.0 against master#90d36fb5905bbe5004f5b465ea14b53d10dae260 for pr-53578-1
Sep 14 13:29:59.854 INFO running: cargo +90d36fb5905bbe5004f5b465ea14b53d10dae260-alt check --frozen --all --all-targets
Sep 14 13:29:59.854 INFO running `"docker" "create" "-v" "/home/ec2-user/crater/./work/local/test-source/worker-4/pr-53578-1/master#90d36fb5905bbe5004f5b465ea14b53d10dae260:/source:ro,Z" "-v" "/home/ec2-user/crater/./work/local/target-dirs/pr-53578-1/worker-4/master#90d36fb5905bbe5004f5b465ea14b53d10dae260:/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 +90d36fb5905bbe5004f5b465ea14b53d10dae260-alt check --frozen --all --all-targets" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-m" "2G" "crater"`
Sep 14 13:30:00.288 INFO blam! 14ed119e297e8e94902ac03be06c371d1a1c9fbcd34d197f0335e43395077b8e
Sep 14 13:30:00.290 INFO running `"docker" "start" "-a" "14ed119e297e8e94902ac03be06c371d1a1c9fbcd34d197f0335e43395077b8e"`
Sep 14 13:30:02.663 INFO kablam! usermod: no changes
Sep 14 13:30:02.865 INFO kablam!     Checking luther v0.1.0 (file:///source)
Sep 14 13:30:05.268 INFO kablam! warning: unused arithmetic operation which must be used
Sep 14 13:30:05.268 INFO kablam!    --> src/span.rs:132:9
Sep 14 13:30:05.268 INFO kablam!     |
Sep 14 13:30:05.268 INFO kablam! 132 |         Location::new(usize::max_value()) + 3;
Sep 14 13:30:05.268 INFO kablam!     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Sep 14 13:30:05.268 INFO kablam!     |
Sep 14 13:30:05.268 INFO kablam!     = note: #[warn(unused_must_use)] on by default
Sep 14 13:30:05.268 INFO kablam! 
Sep 14 13:30:05.367 INFO kablam!     Finished dev [unoptimized + debuginfo] target(s) in 2.66s
Sep 14 13:30:05.379 INFO kablam! su: No module specific data is present
Sep 14 13:30:07.315 INFO running `"docker" "rm" "-f" "14ed119e297e8e94902ac03be06c371d1a1c9fbcd34d197f0335e43395077b8e"`
Sep 14 13:30:07.587 INFO blam! 14ed119e297e8e94902ac03be06c371d1a1c9fbcd34d197f0335e43395077b8e