[INFO] cloning repository jD91mZM2/crappy-chess-minimax
[INFO] running `"git" "clone" "--bare" "git://github.com/jD91mZM2/crappy-chess-minimax.git" "work/cache/sources/gh/jD91mZM2/crappy-chess-minimax"`
[INFO] [stderr] Cloning into bare repository 'work/cache/sources/gh/jD91mZM2/crappy-chess-minimax'...
[INFO] running `"git" "clone" "work/cache/sources/gh/jD91mZM2/crappy-chess-minimax" "work/ex/pr-62008/sources/master#848e0a23f34aaab3e4a974b031c86ef2a4e4fcc1/gh/jD91mZM2/crappy-chess-minimax"`
[INFO] [stderr] Cloning into 'work/ex/pr-62008/sources/master#848e0a23f34aaab3e4a974b031c86ef2a4e4fcc1/gh/jD91mZM2/crappy-chess-minimax'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/jD91mZM2/crappy-chess-minimax" "work/ex/pr-62008/sources/try#8f81d0bf6baf07b92f1246696722485c4ca0b049/gh/jD91mZM2/crappy-chess-minimax"`
[INFO] [stderr] Cloning into 'work/ex/pr-62008/sources/try#8f81d0bf6baf07b92f1246696722485c4ca0b049/gh/jD91mZM2/crappy-chess-minimax'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] a12b29eaf0f0d40ef01c3e985f5610911b4ae0d4
[INFO] sha for GitHub repo jD91mZM2/crappy-chess-minimax: a12b29eaf0f0d40ef01c3e985f5610911b4ae0d4
[INFO] validating manifest of jD91mZM2/crappy-chess-minimax 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 jD91mZM2/crappy-chess-minimax 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 jD91mZM2/crappy-chess-minimax
[INFO] finished frobbing jD91mZM2/crappy-chess-minimax
[INFO] frobbed toml for jD91mZM2/crappy-chess-minimax written to work/ex/pr-62008/sources/master#848e0a23f34aaab3e4a974b031c86ef2a4e4fcc1/gh/jD91mZM2/crappy-chess-minimax/Cargo.toml
[INFO] started frobbing jD91mZM2/crappy-chess-minimax
[INFO] finished frobbing jD91mZM2/crappy-chess-minimax
[INFO] frobbed toml for jD91mZM2/crappy-chess-minimax written to work/ex/pr-62008/sources/try#8f81d0bf6baf07b92f1246696722485c4ca0b049/gh/jD91mZM2/crappy-chess-minimax/Cargo.toml
[INFO] running `"/mnt/big/ec2-user/crater/work/local/cargo-home/bin/cargo" "+848e0a23f34aaab3e4a974b031c86ef2a4e4fcc1-alt" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/ec2-user/crater/work/local/cargo-home/bin/cargo" "+8f81d0bf6baf07b92f1246696722485c4ca0b049-alt" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `"/mnt/big/ec2-user/crater/work/local/cargo-home/bin/cargo" "+848e0a23f34aaab3e4a974b031c86ef2a4e4fcc1-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `"/mnt/big/ec2-user/crater/work/local/cargo-home/bin/cargo" "+8f81d0bf6baf07b92f1246696722485c4ca0b049-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] checking jD91mZM2/crappy-chess-minimax against try#8f81d0bf6baf07b92f1246696722485c4ca0b049 for pr-62008
[INFO] running `"docker" "create" "-v" "/mnt/big/ec2-user/crater/work/local/target-dirs/pr-62008/worker-3/try#8f81d0bf6baf07b92f1246696722485c4ca0b049:/opt/crater/target:rw,Z" "-v" "/mnt/big/ec2-user/crater/work/ex/pr-62008/sources/try#8f81d0bf6baf07b92f1246696722485c4ca0b049/gh/jD91mZM2/crappy-chess-minimax:/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] 928016b6cc134212ebb5a88d449262bab481d22821e60267ec6746d0c0a1aa18
[INFO] running `"docker" "start" "-a" "928016b6cc134212ebb5a88d449262bab481d22821e60267ec6746d0c0a1aa18"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Checking chess-minimax v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: the item `PieceKind` is imported redundantly
[INFO] [stderr]   --> src/board.rs:61:39
[INFO] [stderr]    |
[INFO] [stderr] 3  |     piece::{Piece, PieceKind},
[INFO] [stderr]    |                    --------- the item `PieceKind` is already imported here
[INFO] [stderr] ...
[INFO] [stderr] 61 |         use crate::piece::PieceKind::{self, *};
[INFO] [stderr]    |                                       ^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_imports)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: the item `PieceKind` is imported redundantly
[INFO] [stderr]   --> src/board.rs:61:39
[INFO] [stderr]    |
[INFO] [stderr] 3  |     piece::{Piece, PieceKind},
[INFO] [stderr]    |                    --------- the item `PieceKind` is already imported here
[INFO] [stderr] ...
[INFO] [stderr] 61 |         use crate::piece::PieceKind::{self, *};
[INFO] [stderr]    |                                       ^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_imports)] on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.27s
[INFO] running `"docker" "inspect" "928016b6cc134212ebb5a88d449262bab481d22821e60267ec6746d0c0a1aa18"`
[INFO] running `"docker" "rm" "-f" "928016b6cc134212ebb5a88d449262bab481d22821e60267ec6746d0c0a1aa18"`
[INFO] [stdout] 928016b6cc134212ebb5a88d449262bab481d22821e60267ec6746d0c0a1aa18