Dec 11 23:14:09.837 INFO checking adolfosilva/vcrust against master#3a75e80557a103497cffbcab395a2f37061a77ea for pr-56677
Dec 11 23:14:09.838 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56677/worker-6/master#3a75e80557a103497cffbcab395a2f37061a77ea:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-6/pr-56677/master#3a75e80557a103497cffbcab395a2f37061a77ea:/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 +3a75e80557a103497cffbcab395a2f37061a77ea-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 11 23:14:10.116 INFO [stdout] 4d06ff22b2238d652449d9e59b2ac18cd1375e57024aa2abf0d9ea5ed0c13b23
Dec 11 23:14:10.118 INFO running `"docker" "start" "-a" "4d06ff22b2238d652449d9e59b2ac18cd1375e57024aa2abf0d9ea5ed0c13b23"`
Dec 11 23:14:10.869 INFO [stderr] usermod: no changes
Dec 11 23:14:10.915 INFO [stderr]    Compiling gcc v0.3.44
Dec 11 23:14:13.012 INFO [stderr]    Compiling vcrust v0.1.0 (/source)
Dec 11 23:14:14.596 INFO [stderr] warning: unused import: `std::iter::repeat`
Dec 11 23:14:14.596 INFO [stderr]  --> src/ops.rs:1:5
Dec 11 23:14:14.596 INFO [stderr]   |
Dec 11 23:14:14.596 INFO [stderr] 1 | use std::iter::repeat;
Dec 11 23:14:14.596 INFO [stderr]   |     ^^^^^^^^^^^^^^^^^
Dec 11 23:14:14.596 INFO [stderr]   |
Dec 11 23:14:14.596 INFO [stderr]   = note: #[warn(unused_imports)] on by default
Dec 11 23:14:14.596 INFO [stderr] 
Dec 11 23:14:14.596 INFO [stderr] warning: unused import: `ImageType`
Dec 11 23:14:14.596 INFO [stderr]  --> src/ops.rs:2:20
Dec 11 23:14:14.596 INFO [stderr]   |
Dec 11 23:14:14.596 INFO [stderr] 2 | use image::{Image, ImageType, Channel};
Dec 11 23:14:14.596 INFO [stderr]   |                    ^^^^^^^^^
Dec 11 23:14:14.596 INFO [stderr] 
Dec 11 23:14:14.896 INFO [stderr] warning: variable does not need to be mutable
Dec 11 23:14:14.896 INFO [stderr]    --> src/image.rs:263:13
Dec 11 23:14:14.896 INFO [stderr]     |
Dec 11 23:14:14.896 INFO [stderr] 263 |         let mut bits = bytes.map(|b| b.unwrap()).collect::<Vec<u8>>();
Dec 11 23:14:14.896 INFO [stderr]     |             ----^^^^
Dec 11 23:14:14.896 INFO [stderr]     |             |
Dec 11 23:14:14.896 INFO [stderr]     |             help: remove this `mut`
Dec 11 23:14:14.896 INFO [stderr]     |
Dec 11 23:14:14.896 INFO [stderr]     = note: #[warn(unused_mut)] on by default
Dec 11 23:14:14.896 INFO [stderr] 
Dec 11 23:14:14.928 INFO [stderr] warning: variable does not need to be mutable
Dec 11 23:14:14.929 INFO [stderr]    --> src/image.rs:263:13
Dec 11 23:14:14.929 INFO [stderr]     |
Dec 11 23:14:14.929 INFO [stderr] 263 |         let mut bits = bytes.map(|b| b.unwrap()).collect::<Vec<u8>>();
Dec 11 23:14:14.929 INFO [stderr]     |             ----^^^^
Dec 11 23:14:14.929 INFO [stderr]     |             |
Dec 11 23:14:14.929 INFO [stderr]     |             help: remove this `mut`
Dec 11 23:14:14.929 INFO [stderr]     |
Dec 11 23:14:14.929 INFO [stderr]     = note: #[warn(unused_mut)] on by default
Dec 11 23:14:14.929 INFO [stderr] 
Dec 11 23:14:14.944 INFO [stderr] warning: unused return value of `std::iter::Iterator::collect` that must be used
Dec 11 23:14:14.944 INFO [stderr]    --> src/image.rs:295:9
Dec 11 23:14:14.944 INFO [stderr]     |
Dec 11 23:14:14.944 INFO [stderr] 295 |         bytes.map(|b| b.unwrap()).take_while(|b| *b != b'\n').collect::<Vec<u8>>();
Dec 11 23:14:14.944 INFO [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 11 23:14:14.944 INFO [stderr]     |
Dec 11 23:14:14.944 INFO [stderr]     = note: #[warn(unused_must_use)] on by default
Dec 11 23:14:14.944 INFO [stderr]     = note: if you really need to exhaust the iterator, consider `.for_each(drop)` instead
Dec 11 23:14:14.945 INFO [stderr] 
Dec 11 23:14:14.972 INFO [stderr] warning: unused return value of `std::iter::Iterator::collect` that must be used
Dec 11 23:14:14.972 INFO [stderr]    --> src/image.rs:295:9
Dec 11 23:14:14.972 INFO [stderr]     |
Dec 11 23:14:14.972 INFO [stderr] 295 |         bytes.map(|b| b.unwrap()).take_while(|b| *b != b'\n').collect::<Vec<u8>>();
Dec 11 23:14:14.972 INFO [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 11 23:14:14.972 INFO [stderr]     |
Dec 11 23:14:14.972 INFO [stderr]     = note: #[warn(unused_must_use)] on by default
Dec 11 23:14:14.972 INFO [stderr]     = note: if you really need to exhaust the iterator, consider `.for_each(drop)` instead
Dec 11 23:14:14.972 INFO [stderr] 
Dec 11 23:14:14.972 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 11 23:14:14.972 INFO [stderr]    --> src/image.rs:429:5
Dec 11 23:14:14.972 INFO [stderr]     |
Dec 11 23:14:14.972 INFO [stderr] 429 |     img.write("image/barbara2.pgm");
Dec 11 23:14:14.972 INFO [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 11 23:14:14.972 INFO [stderr]     |
Dec 11 23:14:14.972 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Dec 11 23:14:14.972 INFO [stderr] 
Dec 11 23:14:15.024 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 4.13s
Dec 11 23:14:15.024 INFO [stderr] su: No module specific data is present
Dec 11 23:14:16.026 INFO running `"docker" "inspect" "4d06ff22b2238d652449d9e59b2ac18cd1375e57024aa2abf0d9ea5ed0c13b23"`
Dec 11 23:14:16.310 INFO running `"docker" "rm" "-f" "4d06ff22b2238d652449d9e59b2ac18cd1375e57024aa2abf0d9ea5ed0c13b23"`
Dec 11 23:14:16.660 INFO [stdout] 4d06ff22b2238d652449d9e59b2ac18cd1375e57024aa2abf0d9ea5ed0c13b23