[INFO] updating cached repository joar/rust-game-of-life
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/joar/rust-game-of-life
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/joar/rust-game-of-life" "work/ex/pr-58948/sources/master#0f88167f89fffe321590c5148f21b7d51d44388d/gh/joar/rust-game-of-life"`
[INFO] [stderr] Cloning into 'work/ex/pr-58948/sources/master#0f88167f89fffe321590c5148f21b7d51d44388d/gh/joar/rust-game-of-life'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/joar/rust-game-of-life" "work/ex/pr-58948/sources/try#a829e31f924ec11e400e8d0c2fd2c4bb8937ae6b/gh/joar/rust-game-of-life"`
[INFO] [stderr] Cloning into 'work/ex/pr-58948/sources/try#a829e31f924ec11e400e8d0c2fd2c4bb8937ae6b/gh/joar/rust-game-of-life'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] d56ad8337345dce19979ac2b318db461a5c509c5
[INFO] sha for GitHub repo joar/rust-game-of-life: d56ad8337345dce19979ac2b318db461a5c509c5
[INFO] validating manifest of joar/rust-game-of-life 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 joar/rust-game-of-life 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 joar/rust-game-of-life
[INFO] finished frobbing joar/rust-game-of-life
[INFO] frobbed toml for joar/rust-game-of-life written to work/ex/pr-58948/sources/master#0f88167f89fffe321590c5148f21b7d51d44388d/gh/joar/rust-game-of-life/Cargo.toml
[INFO] started frobbing joar/rust-game-of-life
[INFO] finished frobbing joar/rust-game-of-life
[INFO] frobbed toml for joar/rust-game-of-life written to work/ex/pr-58948/sources/try#a829e31f924ec11e400e8d0c2fd2c4bb8937ae6b/gh/joar/rust-game-of-life/Cargo.toml
[INFO] crate joar/rust-game-of-life 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 joar/rust-game-of-life against try#a829e31f924ec11e400e8d0c2fd2c4bb8937ae6b for pr-58948
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-58948/worker-5/try#a829e31f924ec11e400e8d0c2fd2c4bb8937ae6b:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-58948/sources/try#a829e31f924ec11e400e8d0c2fd2c4bb8937ae6b/gh/joar/rust-game-of-life:/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] 4400aaa71f514e58a3bfd74a3256fe5e4fbe164818ced0637285ab6c4d69a85a
[INFO] running `"docker" "start" "-a" "4400aaa71f514e58a3bfd74a3256fe5e4fbe164818ced0637285ab6c4d69a85a"`
[INFO] [stderr]     Checking num_cpus v1.2.1
[INFO] [stderr]     Checking memchr v0.1.11
[INFO] [stderr]     Checking term_size v0.2.1
[INFO] [stderr]     Checking deflate v0.7.2
[INFO] [stderr]     Checking deque v0.3.1
[INFO] [stderr]     Checking num-bigint v0.1.35
[INFO] [stderr]     Checking gfx_core v0.5.1
[INFO] [stderr]     Checking pistoncore-input v0.15.0
[INFO] [stderr]     Checking piston2d-graphics v0.19.0
[INFO] [stderr]    Compiling gfx_gl v0.3.1
[INFO] [stderr]     Checking clap v2.19.3
[INFO] [stderr]     Checking rayon v0.6.0
[INFO] [stderr]     Checking time v0.1.35
[INFO] [stderr]     Checking thread-id v2.0.0
[INFO] [stderr]     Checking aho-corasick v0.5.3
[INFO] [stderr]     Checking num-rational v0.1.35
[INFO] [stderr]     Checking pistoncore-window v0.24.0
[INFO] [stderr]     Checking png v0.6.2
[INFO] [stderr]     Checking thread_local v0.2.7
[INFO] [stderr]     Checking jpeg-decoder v0.1.11
[INFO] [stderr]     Checking pistoncore-event_loop v0.27.0
[INFO] [stderr]     Checking pistoncore-glutin_window v0.33.0
[INFO] [stderr]     Checking regex v0.1.80
[INFO] [stderr]     Checking piston v0.27.0
[INFO] [stderr]     Checking image v0.12.1
[INFO] [stderr]     Checking env_logger v0.3.5
[INFO] [stderr]     Checking piston2d-opengl_graphics v0.37.0
[INFO] [stderr]     Checking gfx v0.13.0
[INFO] [stderr]     Checking gfx_device_gl v0.12.0
[INFO] [stderr]     Checking piston-gfx_texture v0.20.0
[INFO] [stderr]     Checking piston2d-gfx_graphics v0.35.0
[INFO] [stderr]     Checking piston_window v0.61.0
[INFO] [stderr]     Checking game-of-life v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: unused imports: `Button`, `RenderArgs`, `UpdateArgs`
[INFO] [stderr]   --> src/life.rs:23:5
[INFO] [stderr]    |
[INFO] [stderr] 23 |     RenderArgs,
[INFO] [stderr]    |     ^^^^^^^^^^
[INFO] [stderr] 24 |     UpdateArgs,
[INFO] [stderr]    |     ^^^^^^^^^^
[INFO] [stderr] 25 |     Button,
[INFO] [stderr]    |     ^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_imports)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around assigned value
[INFO] [stderr]    --> src/world.rs:138:21
[INFO] [stderr]     |
[INFO] [stderr] 138 |     let num_cells = (size_x * size_y);
[INFO] [stderr]     |                     ^^^^^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(unused_parens)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::default::Default`
[INFO] [stderr]  --> src/game.rs:1:5
[INFO] [stderr]   |
[INFO] [stderr] 1 | use std::default::Default;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `PressEvent`
[INFO] [stderr]  --> src/game.rs:8:5
[INFO] [stderr]   |
[INFO] [stderr] 8 |     PressEvent,
[INFO] [stderr]   |     ^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `piston::window::Size`
[INFO] [stderr]   --> src/game.rs:13:5
[INFO] [stderr]    |
[INFO] [stderr] 13 | use piston::window::Size;
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused imports: `Button`, `RenderArgs`, `UpdateArgs`
[INFO] [stderr]   --> src/life.rs:23:5
[INFO] [stderr]    |
[INFO] [stderr] 23 |     RenderArgs,
[INFO] [stderr]    |     ^^^^^^^^^^
[INFO] [stderr] 24 |     UpdateArgs,
[INFO] [stderr]    |     ^^^^^^^^^^
[INFO] [stderr] 25 |     Button,
[INFO] [stderr]    |     ^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_imports)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around assigned value
[INFO] [stderr]    --> src/world.rs:138:21
[INFO] [stderr]     |
[INFO] [stderr] 138 |     let num_cells = (size_x * size_y);
[INFO] [stderr]     |                     ^^^^^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(unused_parens)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::default::Default`
[INFO] [stderr]  --> src/game.rs:1:5
[INFO] [stderr]   |
[INFO] [stderr] 1 | use std::default::Default;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `PressEvent`
[INFO] [stderr]  --> src/game.rs:8:5
[INFO] [stderr]   |
[INFO] [stderr] 8 |     PressEvent,
[INFO] [stderr]   |     ^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `piston::window::Size`
[INFO] [stderr]   --> src/game.rs:13:5
[INFO] [stderr]    |
[INFO] [stderr] 13 | use piston::window::Size;
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `AdvancedWindow`
[INFO] [stderr]   --> src/life.rs:14:23
[INFO] [stderr]    |
[INFO] [stderr] 14 | use piston::window::{ AdvancedWindow, WindowSettings };
[INFO] [stderr]    |                       ^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `args`
[INFO] [stderr]   --> src/game.rs:88:28
[INFO] [stderr]    |
[INFO] [stderr] 88 |     pub fn tick(&mut self, args: &UpdateArgs) {
[INFO] [stderr]    |                            ^^^^ help: consider prefixing with an underscore: `_args`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_variables)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `AdvancedWindow`
[INFO] [stderr]   --> src/life.rs:14:23
[INFO] [stderr]    |
[INFO] [stderr] 14 | use piston::window::{ AdvancedWindow, WindowSettings };
[INFO] [stderr]    |                       ^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `args`
[INFO] [stderr]   --> src/game.rs:88:28
[INFO] [stderr]    |
[INFO] [stderr] 88 |     pub fn tick(&mut self, args: &UpdateArgs) {
[INFO] [stderr]    |                            ^^^^ help: consider prefixing with an underscore: `_args`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_variables)] on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 44.98s
[INFO] running `"docker" "inspect" "4400aaa71f514e58a3bfd74a3256fe5e4fbe164818ced0637285ab6c4d69a85a"`
[INFO] running `"docker" "rm" "-f" "4400aaa71f514e58a3bfd74a3256fe5e4fbe164818ced0637285ab6c4d69a85a"`
[INFO] [stdout] 4400aaa71f514e58a3bfd74a3256fe5e4fbe164818ced0637285ab6c4d69a85a