[INFO] updating cached repository DomParfitt/copperhead
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/DomParfitt/copperhead
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/DomParfitt/copperhead" "work/ex/pr-58948/sources/master#0f88167f89fffe321590c5148f21b7d51d44388d/gh/DomParfitt/copperhead"`
[INFO] [stderr] Cloning into 'work/ex/pr-58948/sources/master#0f88167f89fffe321590c5148f21b7d51d44388d/gh/DomParfitt/copperhead'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/DomParfitt/copperhead" "work/ex/pr-58948/sources/try#a829e31f924ec11e400e8d0c2fd2c4bb8937ae6b/gh/DomParfitt/copperhead"`
[INFO] [stderr] Cloning into 'work/ex/pr-58948/sources/try#a829e31f924ec11e400e8d0c2fd2c4bb8937ae6b/gh/DomParfitt/copperhead'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 3f04d3fe1bc5f1dac1b22b8834e61b60c174572f
[INFO] sha for GitHub repo DomParfitt/copperhead: 3f04d3fe1bc5f1dac1b22b8834e61b60c174572f
[INFO] validating manifest of DomParfitt/copperhead on toolchain master#0f88167f89fffe321590c5148f21b7d51d44388d
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+0f88167f89fffe321590c5148f21b7d51d44388d-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of DomParfitt/copperhead on toolchain try#a829e31f924ec11e400e8d0c2fd2c4bb8937ae6b
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+a829e31f924ec11e400e8d0c2fd2c4bb8937ae6b-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing DomParfitt/copperhead
[INFO] finished frobbing DomParfitt/copperhead
[INFO] frobbed toml for DomParfitt/copperhead written to work/ex/pr-58948/sources/master#0f88167f89fffe321590c5148f21b7d51d44388d/gh/DomParfitt/copperhead/Cargo.toml
[INFO] started frobbing DomParfitt/copperhead
[INFO] finished frobbing DomParfitt/copperhead
[INFO] frobbed toml for DomParfitt/copperhead written to work/ex/pr-58948/sources/try#a829e31f924ec11e400e8d0c2fd2c4bb8937ae6b/gh/DomParfitt/copperhead/Cargo.toml
[INFO] crate DomParfitt/copperhead already has a lockfile, it will not be regenerated
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+0f88167f89fffe321590c5148f21b7d51d44388d-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+a829e31f924ec11e400e8d0c2fd2c4bb8937ae6b-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] checking DomParfitt/copperhead against try#a829e31f924ec11e400e8d0c2fd2c4bb8937ae6b for pr-58948
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-58948/worker-7/try#a829e31f924ec11e400e8d0c2fd2c4bb8937ae6b:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-58948/sources/try#a829e31f924ec11e400e8d0c2fd2c4bb8937ae6b/gh/DomParfitt/copperhead:/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=forbid" "-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" "+a829e31f924ec11e400e8d0c2fd2c4bb8937ae6b-alt" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] 241c9acea95641c458285d6caf72d1fb3f7753c17f1fad2e9c2fd4d7b8badd6b
[INFO] running `"docker" "start" "-a" "241c9acea95641c458285d6caf72d1fb3f7753c17f1fad2e9c2fd4d7b8badd6b"`
[INFO] [stderr]    Compiling log v0.4.2
[INFO] [stderr]    Compiling phf v0.7.22
[INFO] [stderr]    Compiling num-traits v0.1.43
[INFO] [stderr]     Checking rusttype v0.2.3
[INFO] [stderr]     Checking piston2d-graphics v0.21.1
[INFO] [stderr]     Checking gfx_core v0.7.2
[INFO] [stderr]    Compiling target_build_utils v0.3.1
[INFO] [stderr]     Checking fs2 v0.2.5
[INFO] [stderr]    Compiling serde_json v0.9.10
[INFO] [stderr]     Checking png v0.9.0
[INFO] [stderr]     Checking pistoncore-input v0.19.0
[INFO] [stderr]     Checking memmap v0.4.0
[INFO] [stderr]     Checking jpeg-decoder v0.1.15
[INFO] [stderr]    Compiling log v0.3.9
[INFO] [stderr]    Compiling gl_generator v0.7.0
[INFO] [stderr]    Compiling gl_generator v0.5.5
[INFO] [stderr]    Compiling gl_generator v0.6.1
[INFO] [stderr]     Checking image v0.15.0
[INFO] [stderr]     Checking pistoncore-window v0.28.0
[INFO] [stderr]    Compiling gfx_gl v0.4.0
[INFO] [stderr]    Compiling gl v0.6.5
[INFO] [stderr]    Compiling glutin v0.9.2
[INFO] [stderr]     Checking pistoncore-event_loop v0.33.0
[INFO] [stderr]     Checking piston v0.33.0
[INFO] [stderr]    Compiling libloading v0.3.4
[INFO] [stderr]     Checking dlib v0.3.1
[INFO] [stderr]     Checking wayland-sys v0.9.10
[INFO] [stderr]     Checking wayland-client v0.9.10
[INFO] [stderr]     Checking wayland-protocols v0.9.10
[INFO] [stderr]     Checking wayland-kbd v0.9.1
[INFO] [stderr]     Checking wayland-window v0.7.0
[INFO] [stderr]     Checking winit v0.7.6
[INFO] [stderr]     Checking pistoncore-glutin_window v0.39.1
[INFO] [stderr]     Checking gfx v0.16.3
[INFO] [stderr]     Checking gfx_device_gl v0.14.6
[INFO] [stderr]     Checking piston-gfx_texture v0.26.0
[INFO] [stderr]     Checking piston2d-gfx_graphics v0.43.0
[INFO] [stderr]     Checking piston_window v0.70.0
[INFO] [stderr]     Checking snake v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: constant item is never used: `BLUE`
[INFO] [stderr]  --> src/color/mod.rs:3:1
[INFO] [stderr]   |
[INFO] [stderr] 3 | pub const BLUE:   [f32; 4] = [0.0, 0.0, 1.0, 1.0];
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(dead_code)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: constant item is never used: `YELLOW`
[INFO] [stderr]  --> src/color/mod.rs:4:1
[INFO] [stderr]   |
[INFO] [stderr] 4 | pub const YELLOW: [f32; 4] = [1.0, 1.0, 0.0, 1.0];
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: constant item is never used: `PURPLE`
[INFO] [stderr]  --> src/color/mod.rs:5:1
[INFO] [stderr]   |
[INFO] [stderr] 5 | pub const PURPLE: [f32; 4] = [1.0, 0.0, 1.0, 1.0];
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: constant item is never used: `CYAN`
[INFO] [stderr]  --> src/color/mod.rs:6:1
[INFO] [stderr]   |
[INFO] [stderr] 6 | pub const CYAN:   [f32; 4] = [0.0, 1.0, 1.0, 1.0];
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: struct is never constructed: `Controller`
[INFO] [stderr]  --> src/controller/mod.rs:5:1
[INFO] [stderr]   |
[INFO] [stderr] 5 | pub struct Controller<'a> {
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `new`
[INFO] [stderr]   --> src/controller/mod.rs:10:5
[INFO] [stderr]    |
[INFO] [stderr] 10 |     pub fn new(snake: &'a mut Snake) -> Self {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `process`
[INFO] [stderr]   --> src/controller/mod.rs:16:5
[INFO] [stderr]    |
[INFO] [stderr] 16 |     pub fn process(&mut self, key: Key) {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `key_binding`
[INFO] [stderr]   --> src/controller/mod.rs:23:5
[INFO] [stderr]    |
[INFO] [stderr] 23 |     fn key_binding(key: Key) -> Direction {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: constant item is never used: `BLUE`
[INFO] [stderr]  --> src/color/mod.rs:3:1
[INFO] [stderr]   |
[INFO] [stderr] 3 | pub const BLUE:   [f32; 4] = [0.0, 0.0, 1.0, 1.0];
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(dead_code)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: constant item is never used: `YELLOW`
[INFO] [stderr]  --> src/color/mod.rs:4:1
[INFO] [stderr]   |
[INFO] [stderr] 4 | pub const YELLOW: [f32; 4] = [1.0, 1.0, 0.0, 1.0];
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: constant item is never used: `PURPLE`
[INFO] [stderr]  --> src/color/mod.rs:5:1
[INFO] [stderr]   |
[INFO] [stderr] 5 | pub const PURPLE: [f32; 4] = [1.0, 0.0, 1.0, 1.0];
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: constant item is never used: `CYAN`
[INFO] [stderr]  --> src/color/mod.rs:6:1
[INFO] [stderr]   |
[INFO] [stderr] 6 | pub const CYAN:   [f32; 4] = [0.0, 1.0, 1.0, 1.0];
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: struct is never constructed: `Controller`
[INFO] [stderr]  --> src/controller/mod.rs:5:1
[INFO] [stderr]   |
[INFO] [stderr] 5 | pub struct Controller<'a> {
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `new`
[INFO] [stderr]   --> src/controller/mod.rs:10:5
[INFO] [stderr]    |
[INFO] [stderr] 10 |     pub fn new(snake: &'a mut Snake) -> Self {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `process`
[INFO] [stderr]   --> src/controller/mod.rs:16:5
[INFO] [stderr]    |
[INFO] [stderr] 16 |     pub fn process(&mut self, key: Key) {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `key_binding`
[INFO] [stderr]   --> src/controller/mod.rs:23:5
[INFO] [stderr]    |
[INFO] [stderr] 23 |     fn key_binding(key: Key) -> Direction {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1m 23s
[INFO] running `"docker" "inspect" "241c9acea95641c458285d6caf72d1fb3f7753c17f1fad2e9c2fd4d7b8badd6b"`
[INFO] running `"docker" "rm" "-f" "241c9acea95641c458285d6caf72d1fb3f7753c17f1fad2e9c2fd4d7b8badd6b"`
[INFO] [stdout] 241c9acea95641c458285d6caf72d1fb3f7753c17f1fad2e9c2fd4d7b8badd6b