Dec 05 11:30:32.156 INFO checking jpng-0.1.0 against try#1df97983eb2057dc6a8f7eb364e263b51ae23230 for pr-56481
Dec 05 11:30:32.156 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56481/worker-4/try#1df97983eb2057dc6a8f7eb364e263b51ae23230:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-4/pr-56481/try#1df97983eb2057dc6a8f7eb364e263b51ae23230:/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 +1df97983eb2057dc6a8f7eb364e263b51ae23230-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 05 11:30:32.563 INFO [stdout] a00bd1b5068b053cd25b3b77c96640e58c6bd6acd86e0ea43a63175af2ea2235
Dec 05 11:30:32.567 INFO running `"docker" "start" "-a" "a00bd1b5068b053cd25b3b77c96640e58c6bd6acd86e0ea43a63175af2ea2235"`
Dec 05 11:30:33.851 INFO [stderr] usermod: no changes
Dec 05 11:30:34.115 INFO [stderr]    Compiling num-derive v0.2.3
Dec 05 11:30:39.264 INFO [stderr]     Checking image v0.19.0
Dec 05 11:30:45.343 INFO [stderr]     Checking jpng v0.1.0 (/source)
Dec 05 11:30:49.197 INFO [stderr] warning: unused return value of `std::iter::Iterator::collect` that must be used
Dec 05 11:30:49.197 INFO [stderr]   --> src/lib.rs:68:9
Dec 05 11:30:49.197 INFO [stderr]    |
Dec 05 11:30:49.197 INFO [stderr] 68 | /         self.image
Dec 05 11:30:49.197 INFO [stderr] 69 | |             .to_rgba()
Dec 05 11:30:49.197 INFO [stderr] 70 | |             .enumerate_pixels()
Dec 05 11:30:49.198 INFO [stderr] 71 | |             .zip(luma.pixels())
Dec 05 11:30:49.198 INFO [stderr] ...  |
Dec 05 11:30:49.198 INFO [stderr] 76 | |                     });
Dec 05 11:30:49.198 INFO [stderr] 77 | |             }).collect::<()>();
Dec 05 11:30:49.198 INFO [stderr]    | |_______________________________^
Dec 05 11:30:49.198 INFO [stderr]    |
Dec 05 11:30:49.198 INFO [stderr]    = note: #[warn(unused_must_use)] on by default
Dec 05 11:30:49.198 INFO [stderr]    = note: if you really need to exhaust the iterator, consider `.for_each(drop)` instead
Dec 05 11:30:49.198 INFO [stderr] 
Dec 05 11:30:49.495 INFO [stderr] warning: unused return value of `std::iter::Iterator::collect` that must be used
Dec 05 11:30:49.495 INFO [stderr]   --> src/lib.rs:68:9
Dec 05 11:30:49.495 INFO [stderr]    |
Dec 05 11:30:49.495 INFO [stderr] 68 | /         self.image
Dec 05 11:30:49.495 INFO [stderr] 69 | |             .to_rgba()
Dec 05 11:30:49.495 INFO [stderr] 70 | |             .enumerate_pixels()
Dec 05 11:30:49.495 INFO [stderr] 71 | |             .zip(luma.pixels())
Dec 05 11:30:49.495 INFO [stderr] ...  |
Dec 05 11:30:49.495 INFO [stderr] 76 | |                     });
Dec 05 11:30:49.495 INFO [stderr] 77 | |             }).collect::<()>();
Dec 05 11:30:49.495 INFO [stderr]    | |_______________________________^
Dec 05 11:30:49.495 INFO [stderr]    |
Dec 05 11:30:49.495 INFO [stderr]    = note: #[warn(unused_must_use)] on by default
Dec 05 11:30:49.495 INFO [stderr]    = note: if you really need to exhaust the iterator, consider `.for_each(drop)` instead
Dec 05 11:30:49.495 INFO [stderr] 
Dec 05 11:30:49.542 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 15.66s
Dec 05 11:30:49.542 INFO [stderr] su: No module specific data is present
Dec 05 11:30:50.475 INFO running `"docker" "inspect" "a00bd1b5068b053cd25b3b77c96640e58c6bd6acd86e0ea43a63175af2ea2235"`
Dec 05 11:30:50.739 INFO running `"docker" "rm" "-f" "a00bd1b5068b053cd25b3b77c96640e58c6bd6acd86e0ea43a63175af2ea2235"`
Dec 05 11:30:51.039 INFO [stdout] a00bd1b5068b053cd25b3b77c96640e58c6bd6acd86e0ea43a63175af2ea2235