Dec 18 04:34:03.425 INFO checking adolfosilva/vcrust against master#96d1334e567237b1507cd277938e7ae2de75ff51 for pr-54252
Dec 18 04:34:03.425 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-54252/worker-4/master#96d1334e567237b1507cd277938e7ae2de75ff51:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-54252/sources/master#96d1334e567237b1507cd277938e7ae2de75ff51/gh/adolfosilva/vcrust:/opt/crater/workdir:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/opt/crater/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/opt/crater/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/crater/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/crater/cargo-home" "-e" "RUSTUP_HOME=/opt/crater/rustup-home" "-w" "/opt/crater/workdir" "-m" "1536M" "--network" "none" "rustops/crates-build-env" "/opt/crater/cargo-home/bin/cargo" "+96d1334e567237b1507cd277938e7ae2de75ff51-alt" "check" "--frozen" "--all" "--all-targets"`
Dec 18 04:34:03.978 INFO [stdout] 27bad17757cf0a20e85f26804398a4d4aa70630fc155ab0d383d58c2875737b7
Dec 18 04:34:03.980 INFO running `"docker" "start" "-a" "27bad17757cf0a20e85f26804398a4d4aa70630fc155ab0d383d58c2875737b7"`
Dec 18 04:34:05.806 INFO [stderr]    Compiling vcrust v0.1.0 (/opt/crater/workdir)
Dec 18 04:34:07.220 INFO [stderr] warning: unused import: `std::iter::repeat`
Dec 18 04:34:07.220 INFO [stderr]  --> src/ops.rs:1:5
Dec 18 04:34:07.220 INFO [stderr]   |
Dec 18 04:34:07.220 INFO [stderr] 1 | use std::iter::repeat;
Dec 18 04:34:07.220 INFO [stderr]   |     ^^^^^^^^^^^^^^^^^
Dec 18 04:34:07.220 INFO [stderr]   |
Dec 18 04:34:07.220 INFO [stderr]   = note: #[warn(unused_imports)] on by default
Dec 18 04:34:07.220 INFO [stderr] 
Dec 18 04:34:07.220 INFO [stderr] warning: unused import: `ImageType`
Dec 18 04:34:07.220 INFO [stderr]  --> src/ops.rs:2:20
Dec 18 04:34:07.220 INFO [stderr]   |
Dec 18 04:34:07.220 INFO [stderr] 2 | use image::{Image, ImageType, Channel};
Dec 18 04:34:07.220 INFO [stderr]   |                    ^^^^^^^^^
Dec 18 04:34:07.220 INFO [stderr] 
Dec 18 04:34:07.384 INFO [stderr] warning: variable does not need to be mutable
Dec 18 04:34:07.384 INFO [stderr]    --> src/image.rs:263:13
Dec 18 04:34:07.384 INFO [stderr]     |
Dec 18 04:34:07.384 INFO [stderr] 263 |         let mut bits = bytes.map(|b| b.unwrap()).collect::<Vec<u8>>();
Dec 18 04:34:07.384 INFO [stderr]     |             ----^^^^
Dec 18 04:34:07.384 INFO [stderr]     |             |
Dec 18 04:34:07.384 INFO [stderr]     |             help: remove this `mut`
Dec 18 04:34:07.384 INFO [stderr]     |
Dec 18 04:34:07.384 INFO [stderr]     = note: #[warn(unused_mut)] on by default
Dec 18 04:34:07.384 INFO [stderr] 
Dec 18 04:34:07.408 INFO [stderr] warning: unused return value of `std::iter::Iterator::collect` that must be used
Dec 18 04:34:07.408 INFO [stderr]    --> src/image.rs:295:9
Dec 18 04:34:07.408 INFO [stderr]     |
Dec 18 04:34:07.408 INFO [stderr] 295 |         bytes.map(|b| b.unwrap()).take_while(|b| *b != b'\n').collect::<Vec<u8>>();
Dec 18 04:34:07.408 INFO [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 18 04:34:07.408 INFO [stderr]     |
Dec 18 04:34:07.408 INFO [stderr]     = note: #[warn(unused_must_use)] on by default
Dec 18 04:34:07.408 INFO [stderr]     = note: if you really need to exhaust the iterator, consider `.for_each(drop)` instead
Dec 18 04:34:07.408 INFO [stderr] 
Dec 18 04:34:07.540 INFO [stderr] warning: variable does not need to be mutable
Dec 18 04:34:07.540 INFO [stderr]    --> src/image.rs:263:13
Dec 18 04:34:07.540 INFO [stderr]     |
Dec 18 04:34:07.540 INFO [stderr] 263 |         let mut bits = bytes.map(|b| b.unwrap()).collect::<Vec<u8>>();
Dec 18 04:34:07.540 INFO [stderr]     |             ----^^^^
Dec 18 04:34:07.540 INFO [stderr]     |             |
Dec 18 04:34:07.540 INFO [stderr]     |             help: remove this `mut`
Dec 18 04:34:07.540 INFO [stderr]     |
Dec 18 04:34:07.540 INFO [stderr]     = note: #[warn(unused_mut)] on by default
Dec 18 04:34:07.540 INFO [stderr] 
Dec 18 04:34:07.572 INFO [stderr] warning: unused return value of `std::iter::Iterator::collect` that must be used
Dec 18 04:34:07.572 INFO [stderr]    --> src/image.rs:295:9
Dec 18 04:34:07.572 INFO [stderr]     |
Dec 18 04:34:07.572 INFO [stderr] 295 |         bytes.map(|b| b.unwrap()).take_while(|b| *b != b'\n').collect::<Vec<u8>>();
Dec 18 04:34:07.572 INFO [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 18 04:34:07.572 INFO [stderr]     |
Dec 18 04:34:07.572 INFO [stderr]     = note: #[warn(unused_must_use)] on by default
Dec 18 04:34:07.572 INFO [stderr]     = note: if you really need to exhaust the iterator, consider `.for_each(drop)` instead
Dec 18 04:34:07.572 INFO [stderr] 
Dec 18 04:34:07.572 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 18 04:34:07.572 INFO [stderr]    --> src/image.rs:429:5
Dec 18 04:34:07.572 INFO [stderr]     |
Dec 18 04:34:07.572 INFO [stderr] 429 |     img.write("image/barbara2.pgm");
Dec 18 04:34:07.572 INFO [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 18 04:34:07.572 INFO [stderr]     |
Dec 18 04:34:07.572 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Dec 18 04:34:07.572 INFO [stderr] 
Dec 18 04:34:07.596 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.81s
Dec 18 04:34:08.372 INFO running `"docker" "inspect" "27bad17757cf0a20e85f26804398a4d4aa70630fc155ab0d383d58c2875737b7"`
Dec 18 04:34:08.642 INFO running `"docker" "rm" "-f" "27bad17757cf0a20e85f26804398a4d4aa70630fc155ab0d383d58c2875737b7"`
Dec 18 04:34:08.885 INFO [stdout] 27bad17757cf0a20e85f26804398a4d4aa70630fc155ab0d383d58c2875737b7