Nov 01 08:28:00.768 INFO checking aschampion/test_image_jpeg against master#05812fa8c588473f03e3fa7cf59cd84f4f37c715 for pr-55538
Nov 01 08:28:00.768 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-55538/worker-6/master#05812fa8c588473f03e3fa7cf59cd84f4f37c715:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-6/pr-55538/master#05812fa8c588473f03e3fa7cf59cd84f4f37c715:/source:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/source" "-e" "USER_ID=1000" "-e" "CMD=cargo +05812fa8c588473f03e3fa7cf59cd84f4f37c715-alt check --frozen --all --all-targets" "-e" "CARGO_TARGET_DIR=/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/cargo-home" "-e" "RUSTUP_HOME=/rustup-home" "-m" "1536M" "--network" "none" "crater"`
Nov 01 08:28:01.055 INFO blam! 555dcf4953cd8af20858f5be8094f38c0429c05dffb5a50e5f7155e2bca5284e
Nov 01 08:28:01.057 INFO running `"docker" "start" "-a" "555dcf4953cd8af20858f5be8094f38c0429c05dffb5a50e5f7155e2bca5284e"`
Nov 01 08:28:01.543 INFO kablam! usermod: no changes
Nov 01 08:28:01.643 INFO kablam!     Checking rayon v1.0.0
Nov 01 08:28:06.130 INFO kablam!     Checking jpeg-decoder v0.1.14
Nov 01 08:28:07.998 INFO kablam!     Checking image v0.18.0
Nov 01 08:28:14.252 INFO kablam!     Checking test_image_jpeg v0.1.0 (/source)
Nov 01 08:28:16.868 INFO kablam! warning: variable does not need to be mutable
Nov 01 08:28:16.868 INFO kablam!   --> src/main.rs:24:13
Nov 01 08:28:16.868 INFO kablam!    |
Nov 01 08:28:16.868 INFO kablam! 24 |         let mut encoder = image::png::PNGEncoder::new(&mut writer);
Nov 01 08:28:16.868 INFO kablam!    |             ----^^^^^^^
Nov 01 08:28:16.868 INFO kablam!    |             |
Nov 01 08:28:16.868 INFO kablam!    |             help: remove this `mut`
Nov 01 08:28:16.868 INFO kablam!    |
Nov 01 08:28:16.868 INFO kablam!    = note: #[warn(unused_mut)] on by default
Nov 01 08:28:16.868 INFO kablam! 
Nov 01 08:28:17.244 INFO kablam! warning: variable does not need to be mutable
Nov 01 08:28:17.245 INFO kablam!   --> src/main.rs:24:13
Nov 01 08:28:17.245 INFO kablam!    |
Nov 01 08:28:17.245 INFO kablam! 24 |         let mut encoder = image::png::PNGEncoder::new(&mut writer);
Nov 01 08:28:17.245 INFO kablam!    |             ----^^^^^^^
Nov 01 08:28:17.246 INFO kablam!    |             |
Nov 01 08:28:17.246 INFO kablam!    |             help: remove this `mut`
Nov 01 08:28:17.246 INFO kablam!    |
Nov 01 08:28:17.247 INFO kablam!    = note: #[warn(unused_mut)] on by default
Nov 01 08:28:17.247 INFO kablam! 
Nov 01 08:28:17.281 INFO kablam!     Finished dev [unoptimized + debuginfo] target(s) in 15.71s
Nov 01 08:28:17.289 INFO kablam! su: No module specific data is present
Nov 01 08:28:18.735 INFO running `"docker" "rm" "-f" "555dcf4953cd8af20858f5be8094f38c0429c05dffb5a50e5f7155e2bca5284e"`
Nov 01 08:28:19.044 INFO blam! 555dcf4953cd8af20858f5be8094f38c0429c05dffb5a50e5f7155e2bca5284e