[INFO] updating cached repository https://github.com/dakitten2358/rust_sudoku
[INFO] running `"git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "-c" "remote.origin.fetch=refs/heads/*:refs/heads/*" "fetch" "origin" "--force" "--prune"`
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] a099d400896428bcc995a0f85ef1b77e3d32f4e4
[INFO] checking dakitten2358/rust_sudoku against beta-2019-10-27 for pr-65897
[INFO] running `"git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdakitten2358%2Frust_sudoku" "/workspace/builds/worker-6/source"`
[INFO] [stderr] Cloning into '/workspace/builds/worker-6/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/dakitten2358/rust_sudoku on toolchain beta-2019-10-27
[INFO] running `"/workspace/cargo-home/bin/cargo" "+beta-2019-10-27" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking git repo https://github.com/dakitten2358/rust_sudoku
[INFO] finished tweaking git repo https://github.com/dakitten2358/rust_sudoku
[INFO] tweaked toml for git repo https://github.com/dakitten2358/rust_sudoku written to /workspace/builds/worker-6/source/Cargo.toml
[INFO] crate git repo https://github.com/dakitten2358/rust_sudoku already has a lockfile, it will not be regenerated
[INFO] running `"/workspace/cargo-home/bin/cargo" "+beta-2019-10-27" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "MAP_USER_ID=0" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=allow" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2019-10-27" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] a6542f388ecf397da1cc301b5a5105bc0d81980d59436d1e02bf99742779657b
[INFO] running `"docker" "start" "-a" "a6542f388ecf397da1cc301b5a5105bc0d81980d59436d1e02bf99742779657b"`
[INFO] [stderr]     Checking num_cpus v1.6.2
[INFO] [stderr]     Checking num-integer v0.1.34
[INFO] [stderr]     Checking enum_primitive v0.1.1
[INFO] [stderr]     Checking deflate v0.7.13
[INFO] [stderr]     Checking pistoncore-input v0.18.0
[INFO] [stderr]     Checking arrayvec v0.3.23
[INFO] [stderr]    Compiling gl v0.6.3
[INFO] [stderr]     Checking tempfile v2.1.5
[INFO] [stderr]     Checking rayon-core v1.2.1
[INFO] [stderr]    Compiling target_build_utils v0.3.1
[INFO] [stderr]     Checking num-iter v0.1.33
[INFO] [stderr]     Checking num-rational v0.1.38
[INFO] [stderr]     Checking rusttype v0.2.1
[INFO] [stderr]     Checking png v0.8.0
[INFO] [stderr]     Checking rayon v0.8.2
[INFO] [stderr]    Compiling libloading v0.3.4
[INFO] [stderr]     Checking pistoncore-window v0.27.0
[INFO] [stderr]     Checking pistoncore-event_loop v0.32.0
[INFO] [stderr]     Checking piston v0.32.0
[INFO] [stderr]     Checking dlib v0.3.1
[INFO] [stderr]     Checking jpeg-decoder v0.1.13
[INFO] [stderr]     Checking wayland-sys v0.8.7
[INFO] [stderr]     Checking wayland-client v0.8.7
[INFO] [stderr]     Checking image v0.14.0
[INFO] [stderr]     Checking wayland-kbd v0.8.0
[INFO] [stderr]     Checking wayland-window v0.5.0
[INFO] [stderr]     Checking winit v0.6.4
[INFO] [stderr]     Checking piston2d-opengl_graphics v0.45.0
[INFO] [stderr]     Checking glutin v0.8.1
[INFO] [stderr]     Checking pistoncore-glutin_window v0.37.0
[INFO] [stderr]     Checking sudoku v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 35.38s
[INFO] running `"docker" "inspect" "a6542f388ecf397da1cc301b5a5105bc0d81980d59436d1e02bf99742779657b"`
[INFO] running `"docker" "rm" "-f" "a6542f388ecf397da1cc301b5a5105bc0d81980d59436d1e02bf99742779657b"`
[INFO] [stdout] a6542f388ecf397da1cc301b5a5105bc0d81980d59436d1e02bf99742779657b