[INFO] cloning repository Arcterus/game-of-life
[INFO] running `"git" "clone" "--bare" "git://github.com/Arcterus/game-of-life.git" "work/cache/sources/gh/Arcterus/game-of-life"`
[INFO] [stderr] Cloning into bare repository 'work/cache/sources/gh/Arcterus/game-of-life'...
[INFO] running `"git" "clone" "work/cache/sources/gh/Arcterus/game-of-life" "work/ex/pr-62008/sources/master#848e0a23f34aaab3e4a974b031c86ef2a4e4fcc1/gh/Arcterus/game-of-life"`
[INFO] [stderr] Cloning into 'work/ex/pr-62008/sources/master#848e0a23f34aaab3e4a974b031c86ef2a4e4fcc1/gh/Arcterus/game-of-life'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/Arcterus/game-of-life" "work/ex/pr-62008/sources/try#8f81d0bf6baf07b92f1246696722485c4ca0b049/gh/Arcterus/game-of-life"`
[INFO] [stderr] Cloning into 'work/ex/pr-62008/sources/try#8f81d0bf6baf07b92f1246696722485c4ca0b049/gh/Arcterus/game-of-life'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] cf117d6701b64118bdf038b66cfe55ecd68f5db2
[INFO] sha for GitHub repo Arcterus/game-of-life: cf117d6701b64118bdf038b66cfe55ecd68f5db2
[INFO] validating manifest of Arcterus/game-of-life on toolchain master#848e0a23f34aaab3e4a974b031c86ef2a4e4fcc1
[INFO] running `"/mnt/big/ec2-user/crater/work/local/cargo-home/bin/cargo" "+848e0a23f34aaab3e4a974b031c86ef2a4e4fcc1-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of Arcterus/game-of-life on toolchain try#8f81d0bf6baf07b92f1246696722485c4ca0b049
[INFO] running `"/mnt/big/ec2-user/crater/work/local/cargo-home/bin/cargo" "+8f81d0bf6baf07b92f1246696722485c4ca0b049-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing Arcterus/game-of-life
[INFO] finished frobbing Arcterus/game-of-life
[INFO] frobbed toml for Arcterus/game-of-life written to work/ex/pr-62008/sources/master#848e0a23f34aaab3e4a974b031c86ef2a4e4fcc1/gh/Arcterus/game-of-life/Cargo.toml
[INFO] started frobbing Arcterus/game-of-life
[INFO] finished frobbing Arcterus/game-of-life
[INFO] frobbed toml for Arcterus/game-of-life written to work/ex/pr-62008/sources/try#8f81d0bf6baf07b92f1246696722485c4ca0b049/gh/Arcterus/game-of-life/Cargo.toml
[INFO] crate Arcterus/game-of-life already has a lockfile, it will not be regenerated
[INFO] running `"/mnt/big/ec2-user/crater/work/local/cargo-home/bin/cargo" "+848e0a23f34aaab3e4a974b031c86ef2a4e4fcc1-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/ec2-user/crater/work/local/cargo-home/bin/cargo" "+8f81d0bf6baf07b92f1246696722485c4ca0b049-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] checking Arcterus/game-of-life against try#8f81d0bf6baf07b92f1246696722485c4ca0b049 for pr-62008
[INFO] running `"docker" "create" "-v" "/mnt/big/ec2-user/crater/work/local/target-dirs/pr-62008/worker-1/try#8f81d0bf6baf07b92f1246696722485c4ca0b049:/opt/crater/target:rw,Z" "-v" "/mnt/big/ec2-user/crater/work/ex/pr-62008/sources/try#8f81d0bf6baf07b92f1246696722485c4ca0b049/gh/Arcterus/game-of-life:/opt/crater/workdir:ro,Z" "-v" "/mnt/big/ec2-user/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/big/ec2-user/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" "+8f81d0bf6baf07b92f1246696722485c4ca0b049-alt" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] fa35c8b8cbb37a3a995ef4a1bcd0c27b6130284c95ad8bafc727907d4d6408a0
[INFO] running `"docker" "start" "-a" "fa35c8b8cbb37a3a995ef4a1bcd0c27b6130284c95ad8bafc727907d4d6408a0"`
[INFO] [stderr]     Checking image v0.18.0
[INFO] [stderr]     Checking wayland-protocols v0.9.10
[INFO] [stderr]     Checking wayland-kbd v0.9.1
[INFO] [stderr]     Checking wayland-window v0.8.0
[INFO] [stderr]     Checking winit v0.8.3
[INFO] [stderr]     Checking piston2d-opengl_graphics v0.50.0
[INFO] [stderr]     Checking glutin v0.10.1
[INFO] [stderr]     Checking pistoncore-glutin_window v0.43.0
[INFO] [stderr]     Checking game-of-life v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: the item `Line` is imported redundantly
[INFO] [stderr]    --> src/life.rs:161:11
[INFO] [stderr]     |
[INFO] [stderr] 14  | use graphics::*;
[INFO] [stderr]     |     ----------- the item `Line` is already imported here
[INFO] [stderr] ...
[INFO] [stderr] 161 |       use graphics::line::Line;
[INFO] [stderr]     |           ^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(unused_imports)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: the item `Line` is imported redundantly
[INFO] [stderr]    --> src/life.rs:161:11
[INFO] [stderr]     |
[INFO] [stderr] 14  | use graphics::*;
[INFO] [stderr]     |     ----------- the item `Line` is already imported here
[INFO] [stderr] ...
[INFO] [stderr] 161 |       use graphics::line::Line;
[INFO] [stderr]     |           ^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(unused_imports)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: the feature `conservative_impl_trait` has been stable since 1.26.0 and no longer requires an attribute to enable
[INFO] [stderr]  --> src/life.rs:1:12
[INFO] [stderr]   |
[INFO] [stderr] 1 | #![feature(conservative_impl_trait)]
[INFO] [stderr]   |            ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(stable_features)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: the feature `conservative_impl_trait` has been stable since 1.26.0 and no longer requires an attribute to enable
[INFO] [stderr]  --> src/life.rs:1:12
[INFO] [stderr]   |
[INFO] [stderr] 1 | #![feature(conservative_impl_trait)]
[INFO] [stderr]   |            ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(stable_features)] on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 17.55s
[INFO] running `"docker" "inspect" "fa35c8b8cbb37a3a995ef4a1bcd0c27b6130284c95ad8bafc727907d4d6408a0"`
[INFO] running `"docker" "rm" "-f" "fa35c8b8cbb37a3a995ef4a1bcd0c27b6130284c95ad8bafc727907d4d6408a0"`
[INFO] [stdout] fa35c8b8cbb37a3a995ef4a1bcd0c27b6130284c95ad8bafc727907d4d6408a0