Nov 28 04:03:04.891 INFO checking ilikeavocadoes/form_reader against try#db42d4dad33013eba11ef37342ad9f614e5652b8 for pr-56074
Nov 28 04:03:04.891 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56074/worker-3/try#db42d4dad33013eba11ef37342ad9f614e5652b8:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-3/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 04:03:05.318 INFO [stdout] 23cb45e819973616126e567f8dc672990a0d0536569e553cd3feffaa8c868fc8
Nov 28 04:03:05.320 INFO running `"docker" "start" "-a" "23cb45e819973616126e567f8dc672990a0d0536569e553cd3feffaa8c868fc8"`
Nov 28 04:03:07.388 INFO [stderr] usermod: no changes
Nov 28 04:03:07.677 INFO [stderr]    Compiling syn v0.14.0
Nov 28 04:03:07.678 INFO [stderr]     Checking rayon-core v1.4.0
Nov 28 04:03:07.678 INFO [stderr]     Checking num-bigint v0.1.44
Nov 28 04:03:07.678 INFO [stderr]     Checking ordered-float v0.5.0
Nov 28 04:03:07.678 INFO [stderr]     Checking alga v0.5.4
Nov 28 04:03:07.678 INFO [stderr]     Checking env_logger v0.5.10
Nov 28 04:03:07.678 INFO [stderr]     Checking png v0.12.0
Nov 28 04:03:10.183 INFO [stderr]     Checking rusttype v0.5.2
Nov 28 04:03:11.260 INFO [stderr]     Checking quickcheck v0.6.2
Nov 28 04:03:12.668 INFO [stderr]     Checking rayon v1.0.1
Nov 28 04:03:17.610 INFO [stderr]     Checking num-rational v0.1.42
Nov 28 04:03:21.278 INFO [stderr]     Checking num v0.1.42
Nov 28 04:03:25.104 INFO [stderr]     Checking nalgebra v0.13.1
Nov 28 04:03:25.829 INFO [stderr]     Checking jpeg-decoder v0.1.14
Nov 28 04:03:32.782 INFO [stderr]    Compiling num-derive v0.2.2
Nov 28 04:03:38.598 INFO [stderr]     Checking image v0.19.0
Nov 28 04:04:10.176 INFO [stderr]     Checking imageproc v0.15.0
Nov 28 04:04:15.093 INFO [stderr]     Checking form_reader v0.1.0 (/source)
Nov 28 04:04:19.336 INFO [stderr] warning: unused variable: `x_out`
Nov 28 04:04:19.337 INFO [stderr]   --> src/main.rs:86:10
Nov 28 04:04:19.337 INFO [stderr]    |
Nov 28 04:04:19.337 INFO [stderr] 86 |     let (x_out, y_out) = (x - 1, y);
Nov 28 04:04:19.337 INFO [stderr]    |          ^^^^^ help: consider using `_x_out` instead
Nov 28 04:04:19.337 INFO [stderr]    |
Nov 28 04:04:19.337 INFO [stderr]    = note: #[warn(unused_variables)] on by default
Nov 28 04:04:19.337 INFO [stderr] 
Nov 28 04:04:19.337 INFO [stderr] warning: unused variable: `y_out`
Nov 28 04:04:19.337 INFO [stderr]   --> src/main.rs:86:17
Nov 28 04:04:19.337 INFO [stderr]    |
Nov 28 04:04:19.337 INFO [stderr] 86 |     let (x_out, y_out) = (x - 1, y);
Nov 28 04:04:19.337 INFO [stderr]    |                 ^^^^^ help: consider using `_y_out` instead
Nov 28 04:04:19.337 INFO [stderr] 
Nov 28 04:04:19.337 INFO [stderr] warning: unused variable: `x_first`
Nov 28 04:04:19.337 INFO [stderr]    --> src/main.rs:100:9
Nov 28 04:04:19.337 INFO [stderr]     |
Nov 28 04:04:19.337 INFO [stderr] 100 |     let x_first = x;
Nov 28 04:04:19.337 INFO [stderr]     |         ^^^^^^^ help: consider using `_x_first` instead
Nov 28 04:04:19.337 INFO [stderr] 
Nov 28 04:04:19.337 INFO [stderr] warning: unused variable: `y_first`
Nov 28 04:04:19.337 INFO [stderr]    --> src/main.rs:101:9
Nov 28 04:04:19.337 INFO [stderr]     |
Nov 28 04:04:19.338 INFO [stderr] 101 |     let y_first = y;
Nov 28 04:04:19.338 INFO [stderr]     |         ^^^^^^^ help: consider using `_y_first` instead
Nov 28 04:04:19.338 INFO [stderr] 
Nov 28 04:04:19.420 INFO [stderr] warning: variable does not need to be mutable
Nov 28 04:04:19.420 INFO [stderr]   --> src/main.rs:98:81
Nov 28 04:04:19.420 INFO [stderr]    |
Nov 28 04:04:19.420 INFO [stderr] 98 | fn follow_contour(img: &image::GrayImage, x: i64, y: i64, direction: Direction, mut contour: Vec<(i64, i64)>) -> Vec<(i64, i64)> {
Nov 28 04:04:19.420 INFO [stderr]    |                                                                                 ----^^^^^^^
Nov 28 04:04:19.420 INFO [stderr]    |                                                                                 |
Nov 28 04:04:19.420 INFO [stderr]    |                                                                                 help: remove this `mut`
Nov 28 04:04:19.420 INFO [stderr]    |
Nov 28 04:04:19.420 INFO [stderr]    = note: #[warn(unused_mut)] on by default
Nov 28 04:04:19.420 INFO [stderr] 
Nov 28 04:04:19.684 INFO [stderr] warning: unused variable: `x_out`
Nov 28 04:04:19.684 INFO [stderr]   --> src/main.rs:86:10
Nov 28 04:04:19.684 INFO [stderr]    |
Nov 28 04:04:19.684 INFO [stderr] 86 |     let (x_out, y_out) = (x - 1, y);
Nov 28 04:04:19.684 INFO [stderr]    |          ^^^^^ help: consider using `_x_out` instead
Nov 28 04:04:19.684 INFO [stderr]    |
Nov 28 04:04:19.684 INFO [stderr]    = note: #[warn(unused_variables)] on by default
Nov 28 04:04:19.684 INFO [stderr] 
Nov 28 04:04:19.684 INFO [stderr] warning: unused variable: `y_out`
Nov 28 04:04:19.684 INFO [stderr]   --> src/main.rs:86:17
Nov 28 04:04:19.684 INFO [stderr]    |
Nov 28 04:04:19.684 INFO [stderr] 86 |     let (x_out, y_out) = (x - 1, y);
Nov 28 04:04:19.684 INFO [stderr]    |                 ^^^^^ help: consider using `_y_out` instead
Nov 28 04:04:19.684 INFO [stderr] 
Nov 28 04:04:19.684 INFO [stderr] warning: unused variable: `x_first`
Nov 28 04:04:19.684 INFO [stderr]    --> src/main.rs:100:9
Nov 28 04:04:19.684 INFO [stderr]     |
Nov 28 04:04:19.684 INFO [stderr] 100 |     let x_first = x;
Nov 28 04:04:19.684 INFO [stderr]     |         ^^^^^^^ help: consider using `_x_first` instead
Nov 28 04:04:19.684 INFO [stderr] 
Nov 28 04:04:19.684 INFO [stderr] warning: unused variable: `y_first`
Nov 28 04:04:19.684 INFO [stderr]    --> src/main.rs:101:9
Nov 28 04:04:19.685 INFO [stderr]     |
Nov 28 04:04:19.685 INFO [stderr] 101 |     let y_first = y;
Nov 28 04:04:19.685 INFO [stderr]     |         ^^^^^^^ help: consider using `_y_first` instead
Nov 28 04:04:19.685 INFO [stderr] 
Nov 28 04:04:19.724 INFO [stderr] warning: variable does not need to be mutable
Nov 28 04:04:19.724 INFO [stderr]   --> src/main.rs:98:81
Nov 28 04:04:19.724 INFO [stderr]    |
Nov 28 04:04:19.724 INFO [stderr] 98 | fn follow_contour(img: &image::GrayImage, x: i64, y: i64, direction: Direction, mut contour: Vec<(i64, i64)>) -> Vec<(i64, i64)> {
Nov 28 04:04:19.724 INFO [stderr]    |                                                                                 ----^^^^^^^
Nov 28 04:04:19.724 INFO [stderr]    |                                                                                 |
Nov 28 04:04:19.724 INFO [stderr]    |                                                                                 help: remove this `mut`
Nov 28 04:04:19.724 INFO [stderr]    |
Nov 28 04:04:19.724 INFO [stderr]    = note: #[warn(unused_mut)] on by default
Nov 28 04:04:19.724 INFO [stderr] 
Nov 28 04:04:19.793 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1m 12s
Nov 28 04:04:19.809 INFO [stderr] su: No module specific data is present
Nov 28 04:04:20.844 INFO running `"docker" "inspect" "23cb45e819973616126e567f8dc672990a0d0536569e553cd3feffaa8c868fc8"`
Nov 28 04:04:21.188 INFO running `"docker" "rm" "-f" "23cb45e819973616126e567f8dc672990a0d0536569e553cd3feffaa8c868fc8"`
Nov 28 04:04:21.632 INFO [stdout] 23cb45e819973616126e567f8dc672990a0d0536569e553cd3feffaa8c868fc8