Nov 30 06:46:28.509 INFO checking aschampion/test_image_jpeg against try#32252761328f59ccfadb1bafb8148c685bc830b3 for pr-56323
Nov 30 06:46:28.510 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56323/worker-2/try#32252761328f59ccfadb1bafb8148c685bc830b3:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-2/pr-56323/try#32252761328f59ccfadb1bafb8148c685bc830b3:/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 +32252761328f59ccfadb1bafb8148c685bc830b3-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 30 06:46:28.700 INFO [stdout] 12bcabbf868eea053be818d3fa4fc0a9caa331c0300f58ebc1fc82c1d70669fe
Nov 30 06:46:28.706 INFO running `"docker" "start" "-a" "12bcabbf868eea053be818d3fa4fc0a9caa331c0300f58ebc1fc82c1d70669fe"`
Nov 30 06:46:29.815 INFO [stderr] usermod: no changes
Nov 30 06:46:29.976 INFO [stderr]     Checking num-rational v0.1.42
Nov 30 06:46:29.976 INFO [stderr]     Checking rayon v1.0.0
Nov 30 06:46:34.581 INFO [stderr]     Checking jpeg-decoder v0.1.14
Nov 30 06:46:36.470 INFO [stderr]     Checking image v0.18.0
Nov 30 06:46:41.637 INFO [stderr]     Checking test_image_jpeg v0.1.0 (/source)
Nov 30 06:46:44.475 INFO [stderr] warning: variable does not need to be mutable
Nov 30 06:46:44.476 INFO [stderr]   --> src/main.rs:24:13
Nov 30 06:46:44.476 INFO [stderr]    |
Nov 30 06:46:44.476 INFO [stderr] 24 |         let mut encoder = image::png::PNGEncoder::new(&mut writer);
Nov 30 06:46:44.476 INFO [stderr]    |             ----^^^^^^^
Nov 30 06:46:44.476 INFO [stderr]    |             |
Nov 30 06:46:44.476 INFO [stderr]    |             help: remove this `mut`
Nov 30 06:46:44.476 INFO [stderr]    |
Nov 30 06:46:44.476 INFO [stderr]    = note: #[warn(unused_mut)] on by default
Nov 30 06:46:44.476 INFO [stderr] 
Nov 30 06:46:44.733 INFO [stderr] warning: variable does not need to be mutable
Nov 30 06:46:44.734 INFO [stderr]   --> src/main.rs:24:13
Nov 30 06:46:44.734 INFO [stderr]    |
Nov 30 06:46:44.734 INFO [stderr] 24 |         let mut encoder = image::png::PNGEncoder::new(&mut writer);
Nov 30 06:46:44.735 INFO [stderr]    |             ----^^^^^^^
Nov 30 06:46:44.735 INFO [stderr]    |             |
Nov 30 06:46:44.740 INFO [stderr]    |             help: remove this `mut`
Nov 30 06:46:44.740 INFO [stderr]    |
Nov 30 06:46:44.740 INFO [stderr]    = note: #[warn(unused_mut)] on by default
Nov 30 06:46:44.740 INFO [stderr] 
Nov 30 06:46:44.765 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 14.92s
Nov 30 06:46:44.784 INFO [stderr] su: No module specific data is present
Nov 30 06:46:45.718 INFO running `"docker" "inspect" "12bcabbf868eea053be818d3fa4fc0a9caa331c0300f58ebc1fc82c1d70669fe"`
Nov 30 06:46:45.938 INFO running `"docker" "rm" "-f" "12bcabbf868eea053be818d3fa4fc0a9caa331c0300f58ebc1fc82c1d70669fe"`
Nov 30 06:46:46.234 INFO [stdout] 12bcabbf868eea053be818d3fa4fc0a9caa331c0300f58ebc1fc82c1d70669fe