[INFO] updating cached repository JosefKuchar/neural-snake
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/JosefKuchar/neural-snake
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/JosefKuchar/neural-snake" "work/ex/beta-1.38-1/sources/1.37.0/gh/JosefKuchar/neural-snake"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/1.37.0/gh/JosefKuchar/neural-snake'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/JosefKuchar/neural-snake" "work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/JosefKuchar/neural-snake"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/JosefKuchar/neural-snake'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 68d465b2e0ab25f6448ca195fdabebf7a721793b
[INFO] sha for GitHub repo JosefKuchar/neural-snake: 68d465b2e0ab25f6448ca195fdabebf7a721793b
[INFO] validating manifest of JosefKuchar/neural-snake on toolchain 1.37.0
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.37.0" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of JosefKuchar/neural-snake on toolchain beta-2019-08-13
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-08-13" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing JosefKuchar/neural-snake
[INFO] finished frobbing JosefKuchar/neural-snake
[INFO] frobbed toml for JosefKuchar/neural-snake written to work/ex/beta-1.38-1/sources/1.37.0/gh/JosefKuchar/neural-snake/Cargo.toml
[INFO] started frobbing JosefKuchar/neural-snake
[INFO] finished frobbing JosefKuchar/neural-snake
[INFO] frobbed toml for JosefKuchar/neural-snake written to work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/JosefKuchar/neural-snake/Cargo.toml
[INFO] crate JosefKuchar/neural-snake already has a lockfile, it will not be regenerated
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.37.0" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-08-13" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] testing JosefKuchar/neural-snake against beta-2019-08-13 for beta-1.38-1
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-7/beta-2019-08-13:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/JosefKuchar/neural-snake:/opt/crater/workdir:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/opt/crater/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/opt/crater/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/crater/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/crater/cargo-home" "-e" "RUSTUP_HOME=/opt/crater/rustup-home" "-w" "/opt/crater/workdir" "-m" "1536M" "--network" "none" "rustops/crates-build-env" "/opt/crater/cargo-home/bin/cargo" "+beta-2019-08-13" "build" "--frozen"`
[INFO] [stdout] 98c8ead2c8c60a8601472f8dfe7f1988ffb18c925e378ba0d244398fa3cf6859
[INFO] running `"docker" "start" "-a" "98c8ead2c8c60a8601472f8dfe7f1988ffb18c925e378ba0d244398fa3cf6859"`
[INFO] [stderr]    Compiling num-integer v0.1.36
[INFO] [stderr]    Compiling rusttype v0.2.3
[INFO] [stderr]    Compiling gl_generator v0.6.1
[INFO] [stderr]    Compiling gl v0.7.0
[INFO] [stderr]    Compiling gfx_gl v0.4.0
[INFO] [stderr]    Compiling wayland-window v0.8.0
[INFO] [stderr]    Compiling num-iter v0.1.35
[INFO] [stderr]    Compiling num-rational v0.1.42
[INFO] [stderr]    Compiling winit v0.8.3
[INFO] [stderr]    Compiling png v0.11.0
[INFO] [stderr] warning[E0311]: the parameter type `K` may not live long enough
[INFO] [stderr]   --> /opt/crater/cargo-home/registry/src/github.com-1ecc6299db9ec823/rusttype-0.2.3/src/support/bst/map.rs:81:19
[INFO] [stderr]    |
[INFO] [stderr] 81 |             match node.force() {
[INFO] [stderr]    |                   ^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = help: consider adding an explicit lifetime bound for `K`
[INFO] [stderr] note: the parameter type `K` must be valid for the anonymous lifetime #1 defined on the function body at 77:9...
[INFO] [stderr]   --> /opt/crater/cargo-home/registry/src/github.com-1ecc6299db9ec823/rusttype-0.2.3/src/support/bst/map.rs:77:9
[INFO] [stderr]    |
[INFO] [stderr] 77 | /         fn clone_subtree<K: Clone, V: Clone>(
[INFO] [stderr] 78 | |                 node: node::NodeRef<marker::Immut, K, V, marker::LeafOrInternal>)
[INFO] [stderr] 79 | |                 -> BTreeMap<K, V> {
[INFO] [stderr] 80 | |
[INFO] [stderr] ...  |
[INFO] [stderr] 136| |             }
[INFO] [stderr] 137| |         }
[INFO] [stderr]    | |_________^
[INFO] [stderr]    = warning: this error has been downgraded to a warning for backwards compatibility with previous releases
[INFO] [stderr]    = warning: this represents potential undefined behavior in your code and this warning will become a hard error in the future
[INFO] [stderr]    = note: for more information, try `rustc --explain E0729`
[INFO] [stderr] 
[INFO] [stderr] warning[E0311]: the parameter type `V` may not live long enough
[INFO] [stderr]   --> /opt/crater/cargo-home/registry/src/github.com-1ecc6299db9ec823/rusttype-0.2.3/src/support/bst/map.rs:81:19
[INFO] [stderr]    |
[INFO] [stderr] 81 |             match node.force() {
[INFO] [stderr]    |                   ^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = help: consider adding an explicit lifetime bound for `V`
[INFO] [stderr] note: the parameter type `V` must be valid for the anonymous lifetime #1 defined on the function body at 77:9...
[INFO] [stderr]   --> /opt/crater/cargo-home/registry/src/github.com-1ecc6299db9ec823/rusttype-0.2.3/src/support/bst/map.rs:77:9
[INFO] [stderr]    |
[INFO] [stderr] 77 | /         fn clone_subtree<K: Clone, V: Clone>(
[INFO] [stderr] 78 | |                 node: node::NodeRef<marker::Immut, K, V, marker::LeafOrInternal>)
[INFO] [stderr] 79 | |                 -> BTreeMap<K, V> {
[INFO] [stderr] 80 | |
[INFO] [stderr] ...  |
[INFO] [stderr] 136| |             }
[INFO] [stderr] 137| |         }
[INFO] [stderr]    | |_________^
[INFO] [stderr]    = warning: this error has been downgraded to a warning for backwards compatibility with previous releases
[INFO] [stderr]    = warning: this represents potential undefined behavior in your code and this warning will become a hard error in the future
[INFO] [stderr]    = note: for more information, try `rustc --explain E0729`
[INFO] [stderr] 
[INFO] [stderr]    Compiling gfx_device_gl v0.15.0
[INFO] [stderr]    Compiling piston2d-graphics v0.24.0
[INFO] [stderr]    Compiling glutin v0.10.1
[INFO] [stderr]    Compiling image v0.18.0
[INFO] [stderr]    Compiling piston-gfx_texture v0.31.0
[INFO] [stderr]    Compiling piston2d-opengl_graphics v0.50.0
[INFO] [stderr]    Compiling piston2d-gfx_graphics v0.48.0
[INFO] [stderr]    Compiling pistoncore-glutin_window v0.43.0
[INFO] [stderr]    Compiling piston_window v0.75.0
[INFO] [stderr]    Compiling neural_snake v0.1.0 (/opt/crater/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]     Finished dev [unoptimized + debuginfo] target(s) in 45.06s
[INFO] running `"docker" "inspect" "98c8ead2c8c60a8601472f8dfe7f1988ffb18c925e378ba0d244398fa3cf6859"`
[INFO] running `"docker" "rm" "-f" "98c8ead2c8c60a8601472f8dfe7f1988ffb18c925e378ba0d244398fa3cf6859"`
[INFO] [stdout] 98c8ead2c8c60a8601472f8dfe7f1988ffb18c925e378ba0d244398fa3cf6859
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-7/beta-2019-08-13:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/JosefKuchar/neural-snake:/opt/crater/workdir:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/opt/crater/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/opt/crater/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/crater/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/crater/cargo-home" "-e" "RUSTUP_HOME=/opt/crater/rustup-home" "-w" "/opt/crater/workdir" "-m" "1536M" "--network" "none" "rustops/crates-build-env" "/opt/crater/cargo-home/bin/cargo" "+beta-2019-08-13" "test" "--frozen" "--no-run"`
[INFO] [stdout] d531a12650c2b0c30c60ae1db5f5d755b23fe6177afa457c006e2a359ebf9c00
[INFO] running `"docker" "start" "-a" "d531a12650c2b0c30c60ae1db5f5d755b23fe6177afa457c006e2a359ebf9c00"`
[INFO] [stderr]    Compiling neural_snake v0.1.0 (/opt/crater/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]     Finished dev [unoptimized + debuginfo] target(s) in 2.28s
[INFO] running `"docker" "inspect" "d531a12650c2b0c30c60ae1db5f5d755b23fe6177afa457c006e2a359ebf9c00"`
[INFO] running `"docker" "rm" "-f" "d531a12650c2b0c30c60ae1db5f5d755b23fe6177afa457c006e2a359ebf9c00"`
[INFO] [stdout] d531a12650c2b0c30c60ae1db5f5d755b23fe6177afa457c006e2a359ebf9c00
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-7/beta-2019-08-13:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/JosefKuchar/neural-snake:/opt/crater/workdir:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/opt/crater/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/opt/crater/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/crater/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/crater/cargo-home" "-e" "RUSTUP_HOME=/opt/crater/rustup-home" "-w" "/opt/crater/workdir" "-m" "1536M" "--network" "none" "rustops/crates-build-env" "/opt/crater/cargo-home/bin/cargo" "+beta-2019-08-13" "test" "--frozen"`
[INFO] [stdout] 215a7b25c2676e8448bb5115306e7651c7bf2fdd7ea23fe2840bd12f0f8378ad
[INFO] running `"docker" "start" "-a" "215a7b25c2676e8448bb5115306e7651c7bf2fdd7ea23fe2840bd12f0f8378ad"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.26s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/neural_snake-95d8124856cb0e6d
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] running `"docker" "inspect" "215a7b25c2676e8448bb5115306e7651c7bf2fdd7ea23fe2840bd12f0f8378ad"`
[INFO] running `"docker" "rm" "-f" "215a7b25c2676e8448bb5115306e7651c7bf2fdd7ea23fe2840bd12f0f8378ad"`
[INFO] [stdout] 215a7b25c2676e8448bb5115306e7651c7bf2fdd7ea23fe2840bd12f0f8378ad