Nov 02 17:59:13.289 INFO checking aschampion/test_image_jpeg against master#f6e9a6e41cd9b1fb687e296b5a6d4c6ad399f862 for pr-55517
Nov 02 17:59:13.290 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-55517/worker-1/master#f6e9a6e41cd9b1fb687e296b5a6d4c6ad399f862:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-1/pr-55517/master#f6e9a6e41cd9b1fb687e296b5a6d4c6ad399f862:/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 +f6e9a6e41cd9b1fb687e296b5a6d4c6ad399f862-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 02 17:59:13.557 INFO blam! a485cef5879374fd8971bfd95be4902e1b95a4abf8edc82cc4927da3eb82008b
Nov 02 17:59:13.565 INFO running `"docker" "start" "-a" "a485cef5879374fd8971bfd95be4902e1b95a4abf8edc82cc4927da3eb82008b"`
Nov 02 17:59:14.313 INFO kablam! usermod: no changes
Nov 02 17:59:14.472 INFO kablam!     Checking test_image_jpeg v0.1.0 (/source)
Nov 02 17:59:16.786 INFO kablam! warning: variable does not need to be mutable
Nov 02 17:59:16.786 INFO kablam!   --> src/main.rs:24:13
Nov 02 17:59:16.786 INFO kablam!    |
Nov 02 17:59:16.786 INFO kablam! 24 |         let mut encoder = image::png::PNGEncoder::new(&mut writer);
Nov 02 17:59:16.786 INFO kablam!    |             ----^^^^^^^
Nov 02 17:59:16.786 INFO kablam!    |             |
Nov 02 17:59:16.786 INFO kablam!    |             help: remove this `mut`
Nov 02 17:59:16.789 INFO kablam!    |
Nov 02 17:59:16.789 INFO kablam!    = note: #[warn(unused_mut)] on by default
Nov 02 17:59:16.789 INFO kablam! 
Nov 02 17:59:16.914 INFO kablam! warning: variable does not need to be mutable
Nov 02 17:59:16.914 INFO kablam!   --> src/main.rs:24:13
Nov 02 17:59:16.914 INFO kablam!    |
Nov 02 17:59:16.914 INFO kablam! 24 |         let mut encoder = image::png::PNGEncoder::new(&mut writer);
Nov 02 17:59:16.914 INFO kablam!    |             ----^^^^^^^
Nov 02 17:59:16.914 INFO kablam!    |             |
Nov 02 17:59:16.914 INFO kablam!    |             help: remove this `mut`
Nov 02 17:59:16.914 INFO kablam!    |
Nov 02 17:59:16.914 INFO kablam!    = note: #[warn(unused_mut)] on by default
Nov 02 17:59:16.914 INFO kablam! 
Nov 02 17:59:16.952 INFO kablam!     Finished dev [unoptimized + debuginfo] target(s) in 2.61s
Nov 02 17:59:16.954 INFO kablam! su: No module specific data is present
Nov 02 17:59:17.817 INFO running `"docker" "rm" "-f" "a485cef5879374fd8971bfd95be4902e1b95a4abf8edc82cc4927da3eb82008b"`
Nov 02 17:59:18.104 INFO blam! a485cef5879374fd8971bfd95be4902e1b95a4abf8edc82cc4927da3eb82008b