Dec 04 23:08:17.543 INFO checking adolfosilva/vcrust against try#1df97983eb2057dc6a8f7eb364e263b51ae23230 for pr-56481
Dec 04 23:08:17.544 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56481/worker-7/try#1df97983eb2057dc6a8f7eb364e263b51ae23230:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-7/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 04 23:08:18.103 INFO [stdout] f00add34f0e41c45fa19c4a684995406890d67835c5762ee12fe56805830e25f
Dec 04 23:08:18.111 INFO running `"docker" "start" "-a" "f00add34f0e41c45fa19c4a684995406890d67835c5762ee12fe56805830e25f"`
Dec 04 23:08:19.517 INFO [stderr] usermod: no changes
Dec 04 23:08:19.591 INFO [stderr]    Compiling vcrust v0.1.0 (/source)
Dec 04 23:08:21.461 INFO [stderr] warning: unused import: `std::iter::repeat`
Dec 04 23:08:21.461 INFO [stderr]  --> src/ops.rs:1:5
Dec 04 23:08:21.461 INFO [stderr]   |
Dec 04 23:08:21.462 INFO [stderr] 1 | use std::iter::repeat;
Dec 04 23:08:21.462 INFO [stderr]   |     ^^^^^^^^^^^^^^^^^
Dec 04 23:08:21.462 INFO [stderr]   |
Dec 04 23:08:21.463 INFO [stderr]   = note: #[warn(unused_imports)] on by default
Dec 04 23:08:21.463 INFO [stderr] 
Dec 04 23:08:21.463 INFO [stderr] warning: unused import: `ImageType`
Dec 04 23:08:21.464 INFO [stderr]  --> src/ops.rs:2:20
Dec 04 23:08:21.464 INFO [stderr]   |
Dec 04 23:08:21.464 INFO [stderr] 2 | use image::{Image, ImageType, Channel};
Dec 04 23:08:21.464 INFO [stderr]   |                    ^^^^^^^^^
Dec 04 23:08:21.465 INFO [stderr] 
Dec 04 23:08:21.720 INFO [stderr] warning: variable does not need to be mutable
Dec 04 23:08:21.720 INFO [stderr]    --> src/image.rs:263:13
Dec 04 23:08:21.720 INFO [stderr]     |
Dec 04 23:08:21.720 INFO [stderr] 263 |         let mut bits = bytes.map(|b| b.unwrap()).collect::<Vec<u8>>();
Dec 04 23:08:21.720 INFO [stderr]     |             ----^^^^
Dec 04 23:08:21.720 INFO [stderr]     |             |
Dec 04 23:08:21.720 INFO [stderr]     |             help: remove this `mut`
Dec 04 23:08:21.720 INFO [stderr]     |
Dec 04 23:08:21.720 INFO [stderr]     = note: #[warn(unused_mut)] on by default
Dec 04 23:08:21.720 INFO [stderr] 
Dec 04 23:08:21.763 INFO [stderr] warning: unused return value of `std::iter::Iterator::collect` that must be used
Dec 04 23:08:21.763 INFO [stderr]    --> src/image.rs:295:9
Dec 04 23:08:21.763 INFO [stderr]     |
Dec 04 23:08:21.763 INFO [stderr] 295 |         bytes.map(|b| b.unwrap()).take_while(|b| *b != b'\n').collect::<Vec<u8>>();
Dec 04 23:08:21.763 INFO [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 04 23:08:21.763 INFO [stderr]     |
Dec 04 23:08:21.763 INFO [stderr]     = note: #[warn(unused_must_use)] on by default
Dec 04 23:08:21.764 INFO [stderr]     = note: if you really need to exhaust the iterator, consider `.for_each(drop)` instead
Dec 04 23:08:21.764 INFO [stderr] 
Dec 04 23:08:21.893 INFO [stderr] warning: variable does not need to be mutable
Dec 04 23:08:21.893 INFO [stderr]    --> src/image.rs:263:13
Dec 04 23:08:21.893 INFO [stderr]     |
Dec 04 23:08:21.893 INFO [stderr] 263 |         let mut bits = bytes.map(|b| b.unwrap()).collect::<Vec<u8>>();
Dec 04 23:08:21.893 INFO [stderr]     |             ----^^^^
Dec 04 23:08:21.893 INFO [stderr]     |             |
Dec 04 23:08:21.893 INFO [stderr]     |             help: remove this `mut`
Dec 04 23:08:21.893 INFO [stderr]     |
Dec 04 23:08:21.893 INFO [stderr]     = note: #[warn(unused_mut)] on by default
Dec 04 23:08:21.893 INFO [stderr] 
Dec 04 23:08:21.926 INFO [stderr] warning: unused return value of `std::iter::Iterator::collect` that must be used
Dec 04 23:08:21.926 INFO [stderr]    --> src/image.rs:295:9
Dec 04 23:08:21.927 INFO [stderr]     |
Dec 04 23:08:21.927 INFO [stderr] 295 |         bytes.map(|b| b.unwrap()).take_while(|b| *b != b'\n').collect::<Vec<u8>>();
Dec 04 23:08:21.927 INFO [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 04 23:08:21.927 INFO [stderr]     |
Dec 04 23:08:21.927 INFO [stderr]     = note: #[warn(unused_must_use)] on by default
Dec 04 23:08:21.927 INFO [stderr]     = note: if you really need to exhaust the iterator, consider `.for_each(drop)` instead
Dec 04 23:08:21.927 INFO [stderr] 
Dec 04 23:08:21.927 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 04 23:08:21.928 INFO [stderr]    --> src/image.rs:429:5
Dec 04 23:08:21.928 INFO [stderr]     |
Dec 04 23:08:21.928 INFO [stderr] 429 |     img.write("image/barbara2.pgm");
Dec 04 23:08:21.928 INFO [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 04 23:08:21.928 INFO [stderr]     |
Dec 04 23:08:21.928 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Dec 04 23:08:21.928 INFO [stderr] 
Dec 04 23:08:21.960 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2.41s
Dec 04 23:08:21.963 INFO [stderr] su: No module specific data is present
Dec 04 23:08:23.307 INFO running `"docker" "inspect" "f00add34f0e41c45fa19c4a684995406890d67835c5762ee12fe56805830e25f"`
Dec 04 23:08:23.691 INFO running `"docker" "rm" "-f" "f00add34f0e41c45fa19c4a684995406890d67835c5762ee12fe56805830e25f"`
Dec 04 23:08:23.950 INFO [stdout] f00add34f0e41c45fa19c4a684995406890d67835c5762ee12fe56805830e25f