[INFO] updating cached repository rmccommon/rust_checkers
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/rmccommon/rust_checkers
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/rmccommon/rust_checkers" "work/ex/pr-60261/sources/master#1891bfa80364eead426517c68de6947b7692e2de/gh/rmccommon/rust_checkers"`
[INFO] [stderr] Cloning into 'work/ex/pr-60261/sources/master#1891bfa80364eead426517c68de6947b7692e2de/gh/rmccommon/rust_checkers'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/rmccommon/rust_checkers" "work/ex/pr-60261/sources/try#bfdcf6db3afcce5fe4013023cfa8ba359c5d527a/gh/rmccommon/rust_checkers"`
[INFO] [stderr] Cloning into 'work/ex/pr-60261/sources/try#bfdcf6db3afcce5fe4013023cfa8ba359c5d527a/gh/rmccommon/rust_checkers'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 45f07fa271e29f7c6facc697ef010a49200f98e5
[INFO] sha for GitHub repo rmccommon/rust_checkers: 45f07fa271e29f7c6facc697ef010a49200f98e5
[INFO] validating manifest of rmccommon/rust_checkers on toolchain master#1891bfa80364eead426517c68de6947b7692e2de
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1891bfa80364eead426517c68de6947b7692e2de-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of rmccommon/rust_checkers on toolchain try#bfdcf6db3afcce5fe4013023cfa8ba359c5d527a
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+bfdcf6db3afcce5fe4013023cfa8ba359c5d527a-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing rmccommon/rust_checkers
[INFO] finished frobbing rmccommon/rust_checkers
[INFO] frobbed toml for rmccommon/rust_checkers written to work/ex/pr-60261/sources/master#1891bfa80364eead426517c68de6947b7692e2de/gh/rmccommon/rust_checkers/Cargo.toml
[INFO] started frobbing rmccommon/rust_checkers
[INFO] finished frobbing rmccommon/rust_checkers
[INFO] frobbed toml for rmccommon/rust_checkers written to work/ex/pr-60261/sources/try#bfdcf6db3afcce5fe4013023cfa8ba359c5d527a/gh/rmccommon/rust_checkers/Cargo.toml
[INFO] crate rmccommon/rust_checkers already has a lockfile, it will not be regenerated
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1891bfa80364eead426517c68de6947b7692e2de-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+bfdcf6db3afcce5fe4013023cfa8ba359c5d527a-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] checking rmccommon/rust_checkers against try#bfdcf6db3afcce5fe4013023cfa8ba359c5d527a for pr-60261
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-60261/worker-4/try#bfdcf6db3afcce5fe4013023cfa8ba359c5d527a:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-60261/sources/try#bfdcf6db3afcce5fe4013023cfa8ba359c5d527a/gh/rmccommon/rust_checkers:/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" "+bfdcf6db3afcce5fe4013023cfa8ba359c5d527a-alt" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] 2fce8ccf4f59df40ab98d465862d793616db29dd443eb75aa7625709ba5f10b3
[INFO] running `"docker" "start" "-a" "2fce8ccf4f59df40ab98d465862d793616db29dd443eb75aa7625709ba5f10b3"`
[INFO] [stderr]    Compiling gl_generator v0.10.0
[INFO] [stderr]     Checking andrew v0.2.0
[INFO] [stderr]     Checking piston2d-graphics v0.30.0
[INFO] [stderr]     Checking pistoncore-input v0.24.0
[INFO] [stderr]     Checking image v0.21.0
[INFO] [stderr]     Checking smithay-client-toolkit v0.4.5
[INFO] [stderr]    Compiling glutin v0.19.0
[INFO] [stderr]    Compiling gl v0.11.0
[INFO] [stderr]     Checking winit v0.18.1
[INFO] [stderr]     Checking pistoncore-window v0.37.0
[INFO] [stderr]     Checking pistoncore-event_loop v0.42.0
[INFO] [stderr]     Checking piston v0.42.0
[INFO] [stderr]     Checking piston2d-opengl_graphics v0.59.0
[INFO] [stderr]     Checking pistoncore-glutin_window v0.54.0
[INFO] [stderr]     Checking rust_chess v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: unused import: `std::error::Error`
[INFO] [stderr]  --> src/game_board.rs:9:5
[INFO] [stderr]   |
[INFO] [stderr] 9 | use std::error::Error;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(unused_imports)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `Board`
[INFO] [stderr]   --> src/game.rs:10:25
[INFO] [stderr]    |
[INFO] [stderr] 10 | use crate::game_board::{Board, Space};
[INFO] [stderr]    |                         ^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `Attack`
[INFO] [stderr]   --> src/game.rs:11:29
[INFO] [stderr]    |
[INFO] [stderr] 11 | use crate::player::{Player, Attack};
[INFO] [stderr]    |                             ^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `crate::piece::Piece`
[INFO] [stderr]   --> src/game.rs:12:5
[INFO] [stderr]    |
[INFO] [stderr] 12 | use crate::piece::Piece;
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::error::Error`
[INFO] [stderr]  --> src/game_board.rs:9:5
[INFO] [stderr]   |
[INFO] [stderr] 9 | use std::error::Error;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(unused_imports)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `Board`
[INFO] [stderr]   --> src/game.rs:10:25
[INFO] [stderr]    |
[INFO] [stderr] 10 | use crate::game_board::{Board, Space};
[INFO] [stderr]    |                         ^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `Attack`
[INFO] [stderr]   --> src/game.rs:11:29
[INFO] [stderr]    |
[INFO] [stderr] 11 | use crate::player::{Player, Attack};
[INFO] [stderr]    |                             ^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `crate::piece::Piece`
[INFO] [stderr]   --> src/game.rs:12:5
[INFO] [stderr]    |
[INFO] [stderr] 12 | use crate::piece::Piece;
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 35.18s
[INFO] running `"docker" "inspect" "2fce8ccf4f59df40ab98d465862d793616db29dd443eb75aa7625709ba5f10b3"`
[INFO] running `"docker" "rm" "-f" "2fce8ccf4f59df40ab98d465862d793616db29dd443eb75aa7625709ba5f10b3"`
[INFO] [stdout] 2fce8ccf4f59df40ab98d465862d793616db29dd443eb75aa7625709ba5f10b3