[INFO] updating cached repository https://github.com/JosefKuchar/neural-snake
[INFO] running `"git" "-c" "credential.helper=" "-c" "credential.helper=/mnt/big/crater/work/cargo-home/bin/git-credential-null" "-c" "remote.origin.fetch=refs/heads/*:refs/heads/*" "fetch" "origin" "--force" "--prune"`
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 68d465b2e0ab25f6448ca195fdabebf7a721793b
[INFO] checking JosefKuchar/neural-snake against master#9b9d2aff8de4d499b4ba7ca406e000f8d3754ea7 for pr-64564
[INFO] running `"git" "clone" "work/cache/git-repos/https%3A%2F%2Fgithub.com%2FJosefKuchar%2Fneural-snake" "work/builds/worker-1/source"`
[INFO] [stderr] Cloning into 'work/builds/worker-1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/JosefKuchar/neural-snake on toolchain 9b9d2aff8de4d499b4ba7ca406e000f8d3754ea7-alt
[INFO] running `"/mnt/big/crater/work/cargo-home/bin/cargo" "+9b9d2aff8de4d499b4ba7ca406e000f8d3754ea7-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking git repo https://github.com/JosefKuchar/neural-snake
[INFO] finished tweaking git repo https://github.com/JosefKuchar/neural-snake
[INFO] tweaked toml for git repo https://github.com/JosefKuchar/neural-snake written to work/builds/worker-1/source/Cargo.toml
[INFO] crate git repo https://github.com/JosefKuchar/neural-snake already has a lockfile, it will not be regenerated
[INFO] running `"/mnt/big/crater/work/cargo-home/bin/cargo" "+9b9d2aff8de4d499b4ba7ca406e000f8d3754ea7-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/mnt/big/crater/work/builds/worker-1/source:/opt/rustwide/workdir:ro,Z" "-v" "/mnt/big/crater/work/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+9b9d2aff8de4d499b4ba7ca406e000f8d3754ea7-alt" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] 9941c728de436b79c5399e1a502489ef5c04a532121e6696b193ecd53c90d6bc
[INFO] running `"docker" "start" "-a" "9941c728de436b79c5399e1a502489ef5c04a532121e6696b193ecd53c90d6bc"`
[INFO] [stderr]     Checking gfx_core v0.8.2
[INFO] [stderr]     Checking piston2d-graphics v0.24.0
[INFO] [stderr]    Compiling gl v0.7.0
[INFO] [stderr]     Checking pistoncore-glutin_window v0.43.0
[INFO] [stderr]     Checking piston2d-opengl_graphics v0.50.0
[INFO] [stderr]     Checking gfx v0.17.1
[INFO] [stderr]     Checking gfx_device_gl v0.15.0
[INFO] [stderr]     Checking piston-gfx_texture v0.31.0
[INFO] [stderr]     Checking piston2d-gfx_graphics v0.48.0
[INFO] [stderr]     Checking piston_window v0.75.0
[INFO] [stderr]     Checking neural_snake v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] warning: unused variable: `left`
[INFO] [stderr]    --> src/main.rs:219:13
[INFO] [stderr]     |
[INFO] [stderr] 219 |         let left = self.peek_at((self.direction + 3) % 4);
[INFO] [stderr]     |             ^^^^ help: consider prefixing with an underscore: `_left`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `right`
[INFO] [stderr]    --> src/main.rs:220:13
[INFO] [stderr]     |
[INFO] [stderr] 220 |         let right = self.peek_at((self.direction + 1) % 4);
[INFO] [stderr]     |             ^^^^^ help: consider prefixing with an underscore: `_right`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `sum`
[INFO] [stderr]    --> src/main.rs:372:27
[INFO] [stderr]     |
[INFO] [stderr] 372 |     fn pick_random(&self, sum: f32, rnd: f32) -> &Dna {
[INFO] [stderr]     |                           ^^^ help: consider prefixing with an underscore: `_sum`
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `normalize_weights`
[INFO] [stderr]    --> src/main.rs:383:5
[INFO] [stderr]     |
[INFO] [stderr] 383 |     fn normalize_weights(&mut self) {
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `sigmoid`
[INFO] [stderr]    --> src/main.rs:555:1
[INFO] [stderr]     |
[INFO] [stderr] 555 | fn sigmoid(y: f32) -> f32 {
[INFO] [stderr]     | ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variable `rangeX` should have a snake case name
[INFO] [stderr]    --> src/main.rs:110:13
[INFO] [stderr]     |
[INFO] [stderr] 110 |         let rangeX = Range::new(0, max_x);
[INFO] [stderr]     |             ^^^^^^ help: convert the identifier to snake case: `range_x`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(non_snake_case)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variable `rangeY` should have a snake case name
[INFO] [stderr]    --> src/main.rs:111:13
[INFO] [stderr]     |
[INFO] [stderr] 111 |         let rangeY = Range::new(0, max_y);
[INFO] [stderr]     |             ^^^^^^ help: convert the identifier to snake case: `range_y`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `left`
[INFO] [stderr]    --> src/main.rs:219:13
[INFO] [stderr]     |
[INFO] [stderr] 219 |         let left = self.peek_at((self.direction + 3) % 4);
[INFO] [stderr]     |             ^^^^ help: consider prefixing with an underscore: `_left`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `right`
[INFO] [stderr]    --> src/main.rs:220:13
[INFO] [stderr]     |
[INFO] [stderr] 220 |         let right = self.peek_at((self.direction + 1) % 4);
[INFO] [stderr]     |             ^^^^^ help: consider prefixing with an underscore: `_right`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `sum`
[INFO] [stderr]    --> src/main.rs:372:27
[INFO] [stderr]     |
[INFO] [stderr] 372 |     fn pick_random(&self, sum: f32, rnd: f32) -> &Dna {
[INFO] [stderr]     |                           ^^^ help: consider prefixing with an underscore: `_sum`
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `normalize_weights`
[INFO] [stderr]    --> src/main.rs:383:5
[INFO] [stderr]     |
[INFO] [stderr] 383 |     fn normalize_weights(&mut self) {
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `sigmoid`
[INFO] [stderr]    --> src/main.rs:555:1
[INFO] [stderr]     |
[INFO] [stderr] 555 | fn sigmoid(y: f32) -> f32 {
[INFO] [stderr]     | ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variable `rangeX` should have a snake case name
[INFO] [stderr]    --> src/main.rs:110:13
[INFO] [stderr]     |
[INFO] [stderr] 110 |         let rangeX = Range::new(0, max_x);
[INFO] [stderr]     |             ^^^^^^ help: convert the identifier to snake case: `range_x`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(non_snake_case)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variable `rangeY` should have a snake case name
[INFO] [stderr]    --> src/main.rs:111:13
[INFO] [stderr]     |
[INFO] [stderr] 111 |         let rangeY = Range::new(0, max_y);
[INFO] [stderr]     |             ^^^^^^ help: convert the identifier to snake case: `range_y`
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1m 09s
[INFO] running `"docker" "inspect" "9941c728de436b79c5399e1a502489ef5c04a532121e6696b193ecd53c90d6bc"`
[INFO] running `"docker" "rm" "-f" "9941c728de436b79c5399e1a502489ef5c04a532121e6696b193ecd53c90d6bc"`
[INFO] [stdout] 9941c728de436b79c5399e1a502489ef5c04a532121e6696b193ecd53c90d6bc