Nov 28 10:04:09.902 INFO checking adolfosilva/vcrust against try#db42d4dad33013eba11ef37342ad9f614e5652b8 for pr-56074
Nov 28 10:04:09.902 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56074/worker-6/try#db42d4dad33013eba11ef37342ad9f614e5652b8:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-6/pr-56074/try#db42d4dad33013eba11ef37342ad9f614e5652b8:/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 +db42d4dad33013eba11ef37342ad9f614e5652b8-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"`
Nov 28 10:04:10.476 INFO [stdout] d1ab12aa909dbba9b91f5168c7cda2ae24078ef082040a3ea7b7bc628d0d1acc
Nov 28 10:04:10.478 INFO running `"docker" "start" "-a" "d1ab12aa909dbba9b91f5168c7cda2ae24078ef082040a3ea7b7bc628d0d1acc"`
Nov 28 10:04:12.630 INFO [stderr] usermod: no changes
Nov 28 10:04:12.739 INFO [stderr]    Compiling gcc v0.3.44
Nov 28 10:04:15.549 INFO [stderr]    Compiling vcrust v0.1.0 (/source)
Nov 28 10:04:17.010 INFO [stderr] warning: unused import: `std::iter::repeat`
Nov 28 10:04:17.010 INFO [stderr]  --> src/ops.rs:1:5
Nov 28 10:04:17.011 INFO [stderr]   |
Nov 28 10:04:17.011 INFO [stderr] 1 | use std::iter::repeat;
Nov 28 10:04:17.011 INFO [stderr]   |     ^^^^^^^^^^^^^^^^^
Nov 28 10:04:17.012 INFO [stderr]   |
Nov 28 10:04:17.012 INFO [stderr]   = note: #[warn(unused_imports)] on by default
Nov 28 10:04:17.012 INFO [stderr] 
Nov 28 10:04:17.012 INFO [stderr] warning: unused import: `ImageType`
Nov 28 10:04:17.013 INFO [stderr]  --> src/ops.rs:2:20
Nov 28 10:04:17.013 INFO [stderr]   |
Nov 28 10:04:17.013 INFO [stderr] 2 | use image::{Image, ImageType, Channel};
Nov 28 10:04:17.014 INFO [stderr]   |                    ^^^^^^^^^
Nov 28 10:04:17.014 INFO [stderr] 
Nov 28 10:04:17.193 INFO [stderr] warning: variable does not need to be mutable
Nov 28 10:04:17.193 INFO [stderr]    --> src/image.rs:263:13
Nov 28 10:04:17.193 INFO [stderr]     |
Nov 28 10:04:17.194 INFO [stderr] 263 |         let mut bits = bytes.map(|b| b.unwrap()).collect::<Vec<u8>>();
Nov 28 10:04:17.194 INFO [stderr]     |             ----^^^^
Nov 28 10:04:17.194 INFO [stderr]     |             |
Nov 28 10:04:17.194 INFO [stderr]     |             help: remove this `mut`
Nov 28 10:04:17.195 INFO [stderr]     |
Nov 28 10:04:17.195 INFO [stderr]     = note: #[warn(unused_mut)] on by default
Nov 28 10:04:17.195 INFO [stderr] 
Nov 28 10:04:17.216 INFO [stderr] warning: unused return value of `std::iter::Iterator::collect` that must be used
Nov 28 10:04:17.217 INFO [stderr]    --> src/image.rs:295:9
Nov 28 10:04:17.217 INFO [stderr]     |
Nov 28 10:04:17.217 INFO [stderr] 295 |         bytes.map(|b| b.unwrap()).take_while(|b| *b != b'\n').collect::<Vec<u8>>();
Nov 28 10:04:17.218 INFO [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 28 10:04:17.218 INFO [stderr]     |
Nov 28 10:04:17.218 INFO [stderr]     = note: #[warn(unused_must_use)] on by default
Nov 28 10:04:17.218 INFO [stderr]     = note: if you really need to exhaust the iterator, consider `.for_each(drop)` instead
Nov 28 10:04:17.219 INFO [stderr] 
Nov 28 10:04:17.338 INFO [stderr] warning: variable does not need to be mutable
Nov 28 10:04:17.338 INFO [stderr]    --> src/image.rs:263:13
Nov 28 10:04:17.339 INFO [stderr]     |
Nov 28 10:04:17.339 INFO [stderr] 263 |         let mut bits = bytes.map(|b| b.unwrap()).collect::<Vec<u8>>();
Nov 28 10:04:17.339 INFO [stderr]     |             ----^^^^
Nov 28 10:04:17.340 INFO [stderr]     |             |
Nov 28 10:04:17.340 INFO [stderr]     |             help: remove this `mut`
Nov 28 10:04:17.340 INFO [stderr]     |
Nov 28 10:04:17.340 INFO [stderr]     = note: #[warn(unused_mut)] on by default
Nov 28 10:04:17.341 INFO [stderr] 
Nov 28 10:04:17.388 INFO [stderr] warning: unused return value of `std::iter::Iterator::collect` that must be used
Nov 28 10:04:17.388 INFO [stderr]    --> src/image.rs:295:9
Nov 28 10:04:17.388 INFO [stderr]     |
Nov 28 10:04:17.388 INFO [stderr] 295 |         bytes.map(|b| b.unwrap()).take_while(|b| *b != b'\n').collect::<Vec<u8>>();
Nov 28 10:04:17.388 INFO [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 28 10:04:17.388 INFO [stderr]     |
Nov 28 10:04:17.388 INFO [stderr]     = note: #[warn(unused_must_use)] on by default
Nov 28 10:04:17.388 INFO [stderr]     = note: if you really need to exhaust the iterator, consider `.for_each(drop)` instead
Nov 28 10:04:17.388 INFO [stderr] 
Nov 28 10:04:17.388 INFO [stderr] warning: unused `std::result::Result` that must be used
Nov 28 10:04:17.388 INFO [stderr]    --> src/image.rs:429:5
Nov 28 10:04:17.388 INFO [stderr]     |
Nov 28 10:04:17.388 INFO [stderr] 429 |     img.write("image/barbara2.pgm");
Nov 28 10:04:17.388 INFO [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 28 10:04:17.388 INFO [stderr]     |
Nov 28 10:04:17.388 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Nov 28 10:04:17.388 INFO [stderr] 
Nov 28 10:04:17.401 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 4.74s
Nov 28 10:04:17.416 INFO [stderr] su: No module specific data is present
Nov 28 10:04:17.864 INFO running `"docker" "inspect" "d1ab12aa909dbba9b91f5168c7cda2ae24078ef082040a3ea7b7bc628d0d1acc"`
Nov 28 10:04:18.054 INFO running `"docker" "rm" "-f" "d1ab12aa909dbba9b91f5168c7cda2ae24078ef082040a3ea7b7bc628d0d1acc"`
Nov 28 10:04:18.223 INFO [stdout] d1ab12aa909dbba9b91f5168c7cda2ae24078ef082040a3ea7b7bc628d0d1acc