[INFO] cloning repository https://github.com/rmccommon/rust_checkers
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/rmccommon/rust_checkers" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Frmccommon%2Frust_checkers", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Frmccommon%2Frust_checkers'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 999d3442be1b983f9b59e5307d74c1aa0fa7e36f
[INFO] checking rmccommon/rust_checkers against master#39b841dfe36f90a7cd111e7f0c55f32594f6e578 for pr-77035
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Frmccommon%2Frust_checkers" "/workspace/builds/worker-7/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-7/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/rmccommon/rust_checkers on toolchain 39b841dfe36f90a7cd111e7f0c55f32594f6e578
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+39b841dfe36f90a7cd111e7f0c55f32594f6e578" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/rmccommon/rust_checkers
[INFO] finished tweaking git repo https://github.com/rmccommon/rust_checkers
[INFO] tweaked toml for git repo https://github.com/rmccommon/rust_checkers written to /workspace/builds/worker-7/source/Cargo.toml
[INFO] crate git repo https://github.com/rmccommon/rust_checkers already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+39b841dfe36f90a7cd111e7f0c55f32594f6e578" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded interpolation v0.2.0
[INFO] [stderr]   Downloaded pistoncore-event_loop v0.42.0
[INFO] [stderr]   Downloaded either v1.5.1
[INFO] [stderr]   Downloaded pistoncore-glutin_window v0.54.0
[INFO] [stderr]   Downloaded pistoncore-window v0.37.0
[INFO] [stderr]   Downloaded cc v1.0.31
[INFO] [stderr]   Downloaded smithay-client-toolkit v0.4.5
[INFO] [stderr]   Downloaded gl v0.11.0
[INFO] [stderr]   Downloaded piston v0.42.0
[INFO] [stderr]   Downloaded nix v0.13.0
[INFO] [stderr]   Downloaded gleam v0.6.14
[INFO] [stderr]   Downloaded piston2d-graphics v0.30.0
[INFO] [stderr]   Downloaded andrew v0.2.0
[INFO] [stderr]   Downloaded piston2d-opengl_graphics v0.59.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "rustops/crates-build-env@sha256:c8ac004eab7d63a0ad09a2dde3d3353ba464f767bee4de425dc8f74c46a1905e" "/opt/rustwide/cargo-home/bin/cargo" "+39b841dfe36f90a7cd111e7f0c55f32594f6e578" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] f8fc6fb0f32748488014c57ade37fe5218290422993757d00d8b36dac30ea37b
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "f8fc6fb0f32748488014c57ade37fe5218290422993757d00d8b36dac30ea37b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "f8fc6fb0f32748488014c57ade37fe5218290422993757d00d8b36dac30ea37b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f8fc6fb0f32748488014c57ade37fe5218290422993757d00d8b36dac30ea37b", kill_on_drop: false }`
[INFO] [stdout] f8fc6fb0f32748488014c57ade37fe5218290422993757d00d8b36dac30ea37b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "rustops/crates-build-env@sha256:c8ac004eab7d63a0ad09a2dde3d3353ba464f767bee4de425dc8f74c46a1905e" "/opt/rustwide/cargo-home/bin/cargo" "+39b841dfe36f90a7cd111e7f0c55f32594f6e578" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 9f5417b3103831ef9a6ac45093fd11bae3c65a233c1fa362accde5dada3d2d33
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "9f5417b3103831ef9a6ac45093fd11bae3c65a233c1fa362accde5dada3d2d33", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.50
[INFO] [stderr]    Compiling arrayvec v0.4.10
[INFO] [stderr]     Checking scopeguard v0.3.3
[INFO] [stderr]    Compiling cc v1.0.31
[INFO] [stderr]    Compiling syn v0.15.29
[INFO] [stderr]    Compiling serde v1.0.89
[INFO] [stderr]    Compiling nix v0.13.0
[INFO] [stderr]     Checking shader_version v0.3.0
[INFO] [stderr]     Checking smallvec v0.6.9
[INFO] [stderr]     Checking either v1.5.1
[INFO] [stderr]     Checking piston-texture v0.6.0
[INFO] [stderr]     Checking safe-transmute v0.10.1
[INFO] [stderr]     Checking interpolation v0.2.0
[INFO] [stderr]     Checking read_color v1.0.0
[INFO] [stderr]     Checking piston-shaders_graphics2d v0.3.1
[INFO] [stderr]     Checking log v0.4.6
[INFO] [stderr]     Checking vecmath v0.3.1
[INFO] [stderr]     Checking lock_api v0.1.5
[INFO] [stderr]    Compiling quote v0.6.11
[INFO] [stderr]     Checking approx v0.3.2
[INFO] [stderr]     Checking ordered-float v1.0.2
[INFO] [stderr]     Checking num-integer v0.1.39
[INFO] [stderr]     Checking line_drawing v0.7.0
[INFO] [stderr]     Checking rand_pcg v0.1.2
[INFO] [stderr]    Compiling gl_generator v0.10.0
[INFO] [stderr]    Compiling wayland-scanner v0.21.11
[INFO] [stderr]     Checking num-iter v0.1.37
[INFO] [stderr]     Checking num-rational v0.2.1
[INFO] [stderr]     Checking png v0.14.0
[INFO] [stderr]     Checking rusttype v0.7.5
[INFO] [stderr]     Checking crossbeam-epoch v0.3.1
[INFO] [stderr]     Checking nix v0.12.0
[INFO] [stderr]     Checking rand_os v0.1.3
[INFO] [stderr]     Checking num_cpus v1.10.0
[INFO] [stderr]     Checking memmap v0.7.0
[INFO] [stderr]     Checking shared_library v0.1.9
[INFO] [stderr]     Checking x11-dl v2.18.3
[INFO] [stderr]    Compiling libloading v0.5.0
[INFO] [stderr]     Checking osmesa-sys v0.1.2
[INFO] [stderr]     Checking crossbeam-deque v0.2.0
[INFO] [stderr]     Checking rand v0.6.5
[INFO] [stderr]     Checking rayon-core v1.4.1
[INFO] [stderr]     Checking andrew v0.2.0
[INFO] [stderr]     Checking piston2d-graphics v0.30.0
[INFO] [stderr]    Compiling gl v0.11.0
[INFO] [stderr]    Compiling glutin v0.19.0
[INFO] [stderr]     Checking dlib v0.4.1
[INFO] [stderr]     Checking wayland-sys v0.21.11
[INFO] [stderr]     Checking rayon v1.0.3
[INFO] [stderr]     Checking parking_lot_core v0.4.0
[INFO] [stderr]    Compiling wayland-client v0.21.11
[INFO] [stderr]    Compiling wayland-protocols v0.21.11
[INFO] [stderr]     Checking parking_lot v0.7.1
[INFO] [stderr]     Checking jpeg-decoder v0.1.15
[INFO] [stderr]    Compiling serde_derive v1.0.89
[INFO] [stderr]    Compiling num-derive v0.2.4
[INFO] [stderr]     Checking wayland-commons v0.21.11
[INFO] [stderr]     Checking tiff v0.2.2
[INFO] [stderr]     Checking image v0.21.0
[INFO] [stderr]     Checking piston2d-opengl_graphics v0.59.0
[INFO] [stderr]     Checking smithay-client-toolkit v0.4.5
[INFO] [stderr]     Checking pistoncore-input v0.24.0
[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 pistoncore-glutin_window v0.54.0
[INFO] [stderr]     Checking rust_chess v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1m 27s
[INFO] running `Command { std: "docker" "inspect" "9f5417b3103831ef9a6ac45093fd11bae3c65a233c1fa362accde5dada3d2d33", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9f5417b3103831ef9a6ac45093fd11bae3c65a233c1fa362accde5dada3d2d33", kill_on_drop: false }`
[INFO] [stdout] 9f5417b3103831ef9a6ac45093fd11bae3c65a233c1fa362accde5dada3d2d33