Dec 04 13:30:16.850 INFO checking nabeelomer/ImageBuilder against master#c8ae2de8363be088604ffa2ccba84ff7ad7250bc for pr-56481
Dec 04 13:30:16.850 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56481/worker-7/master#c8ae2de8363be088604ffa2ccba84ff7ad7250bc:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-7/pr-56481/master#c8ae2de8363be088604ffa2ccba84ff7ad7250bc:/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 +c8ae2de8363be088604ffa2ccba84ff7ad7250bc-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"`
Dec 04 13:30:17.348 INFO [stdout] 7e4b2b911051b85bbdfef81b99a0bfc02e6c3c113477bb4b059230c6d8e5a2a2
Dec 04 13:30:17.351 INFO running `"docker" "start" "-a" "7e4b2b911051b85bbdfef81b99a0bfc02e6c3c113477bb4b059230c6d8e5a2a2"`
Dec 04 13:30:18.263 INFO [stderr] usermod: no changes
Dec 04 13:30:18.371 INFO [stderr]     Checking enum_primitive v0.1.1
Dec 04 13:30:18.371 INFO [stderr]     Checking arrayvec v0.4.6
Dec 04 13:30:18.371 INFO [stderr]     Checking rayon-core v1.3.0
Dec 04 13:30:18.387 INFO [stderr]     Checking num-rational v0.1.40
Dec 04 13:30:18.403 INFO [stderr]     Checking ordered-float v0.5.0
Dec 04 13:30:20.119 INFO [stderr]     Checking rayon v0.8.2
Dec 04 13:30:20.715 INFO [stderr]     Checking rusttype v0.3.0
Dec 04 13:30:22.911 INFO [stderr]     Checking jpeg-decoder v0.1.13
Dec 04 13:30:24.103 INFO [stderr]     Checking image v0.18.0
Dec 04 13:30:28.044 INFO [stderr]     Checking ImageBuilder v0.1.0 (/source)
Dec 04 13:30:29.163 INFO [stderr] warning: variable does not need to be mutable
Dec 04 13:30:29.163 INFO [stderr]   --> src/main.rs:11:9
Dec 04 13:30:29.163 INFO [stderr]    |
Dec 04 13:30:29.163 INFO [stderr] 11 |     let mut image = DynamicImage::new_rgba8(1920, 1080).to_rgba();
Dec 04 13:30:29.163 INFO [stderr]    |         ----^^^^^
Dec 04 13:30:29.163 INFO [stderr]    |         |
Dec 04 13:30:29.163 INFO [stderr]    |         help: remove this `mut`
Dec 04 13:30:29.163 INFO [stderr]    |
Dec 04 13:30:29.163 INFO [stderr]    = note: #[warn(unused_mut)] on by default
Dec 04 13:30:29.163 INFO [stderr] 
Dec 04 13:30:29.167 INFO [stderr] warning: crate `ImageBuilder` should have a snake case name such as `image_builder`
Dec 04 13:30:29.167 INFO [stderr]   |
Dec 04 13:30:29.167 INFO [stderr]   = note: #[warn(non_snake_case)] on by default
Dec 04 13:30:29.167 INFO [stderr] 
Dec 04 13:30:29.263 INFO [stderr] warning: variable does not need to be mutable
Dec 04 13:30:29.263 INFO [stderr]   --> src/main.rs:11:9
Dec 04 13:30:29.263 INFO [stderr]    |
Dec 04 13:30:29.263 INFO [stderr] 11 |     let mut image = DynamicImage::new_rgba8(1920, 1080).to_rgba();
Dec 04 13:30:29.263 INFO [stderr]    |         ----^^^^^
Dec 04 13:30:29.263 INFO [stderr]    |         |
Dec 04 13:30:29.263 INFO [stderr]    |         help: remove this `mut`
Dec 04 13:30:29.263 INFO [stderr]    |
Dec 04 13:30:29.263 INFO [stderr]    = note: #[warn(unused_mut)] on by default
Dec 04 13:30:29.263 INFO [stderr] 
Dec 04 13:30:29.275 INFO [stderr] warning: crate `ImageBuilder` should have a snake case name such as `image_builder`
Dec 04 13:30:29.275 INFO [stderr]   |
Dec 04 13:30:29.275 INFO [stderr]   = note: #[warn(non_snake_case)] on by default
Dec 04 13:30:29.275 INFO [stderr] 
Dec 04 13:30:29.284 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 11.00s
Dec 04 13:30:29.296 INFO [stderr] su: No module specific data is present
Dec 04 13:30:29.829 INFO running `"docker" "inspect" "7e4b2b911051b85bbdfef81b99a0bfc02e6c3c113477bb4b059230c6d8e5a2a2"`
Dec 04 13:30:30.121 INFO running `"docker" "rm" "-f" "7e4b2b911051b85bbdfef81b99a0bfc02e6c3c113477bb4b059230c6d8e5a2a2"`
Dec 04 13:30:30.479 INFO [stdout] 7e4b2b911051b85bbdfef81b99a0bfc02e6c3c113477bb4b059230c6d8e5a2a2