Sep 04 07:18:09.806 INFO checking scarlet-0.2.2 against master#2687112ea6a8701cbf36e6dd4d77d64694cf93d8 for pr-53913
Sep 04 07:18:09.806 INFO running: cargo +2687112ea6a8701cbf36e6dd4d77d64694cf93d8-alt check --frozen --all --all-targets
Sep 04 07:18:09.806 INFO running `"docker" "create" "-v" "/home/ec2-user/crater/./work/local/test-source/worker-1/pr-53913/master#2687112ea6a8701cbf36e6dd4d77d64694cf93d8:/source:ro,Z" "-v" "/home/ec2-user/crater/./work/local/target-dirs/pr-53913/worker-1/master#2687112ea6a8701cbf36e6dd4d77d64694cf93d8:/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 +2687112ea6a8701cbf36e6dd4d77d64694cf93d8-alt check --frozen --all --all-targets" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-m" "2G" "crater"`
Sep 04 07:18:10.068 INFO blam! 23120c771c4d21872aa92fb2a1bc8a693eca122da466b109a8a71f519b7d27dc
Sep 04 07:18:10.068 INFO running `"docker" "start" "-a" "23120c771c4d21872aa92fb2a1bc8a693eca122da466b109a8a71f519b7d27dc"`
Sep 04 07:18:11.144 INFO kablam!     Checking nalgebra v0.14.4
Sep 04 07:18:53.763 INFO kablam!     Checking scarlet v0.2.2 (file:///source)
Sep 04 07:18:59.044 INFO kablam! warning: unused variable: `color3`
Sep 04 07:18:59.045 INFO kablam!    --> src/colors/cielabcolor.rs:185:13
Sep 04 07:18:59.045 INFO kablam!     |
Sep 04 07:18:59.045 INFO kablam! 185 |         let color3: CIELABColor = color2.convert();
Sep 04 07:18:59.045 INFO kablam!     |             ^^^^^^ help: consider using `_color3` instead
Sep 04 07:18:59.045 INFO kablam!     |
Sep 04 07:18:59.045 INFO kablam!     = note: #[warn(unused_variables)] on by default
Sep 04 07:18:59.045 INFO kablam! 
Sep 04 07:18:59.705 INFO kablam!     Finished dev [unoptimized + debuginfo] target(s) in 48.77s
Sep 04 07:18:59.715 INFO kablam! su: No module specific data is present
Sep 04 07:19:00.134 INFO running `"docker" "rm" "-f" "23120c771c4d21872aa92fb2a1bc8a693eca122da466b109a8a71f519b7d27dc"`
Sep 04 07:19:00.233 INFO blam! 23120c771c4d21872aa92fb2a1bc8a693eca122da466b109a8a71f519b7d27dc