[INFO] cloning repository https://github.com/nt202/snake_in_rust
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/nt202/snake_in_rust" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fnt202%2Fsnake_in_rust", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fnt202%2Fsnake_in_rust'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] fad407786517df800bd900cb1ebf519ff1bf7441
[INFO] checking nt202/snake_in_rust against beta for pr-78714
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fnt202%2Fsnake_in_rust" "/workspace/builds/worker-12/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-12/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/nt202/snake_in_rust on toolchain beta
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/nt202/snake_in_rust
[INFO] finished tweaking git repo https://github.com/nt202/snake_in_rust
[INFO] tweaked toml for git repo https://github.com/nt202/snake_in_rust written to /workspace/builds/worker-12/source/Cargo.toml
[INFO] crate git repo https://github.com/nt202/snake_in_rust already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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@sha256:6eabd152ff4036248d66efda456a36cb33d24b7291b33f25f75140726c88da35" "/opt/rustwide/cargo-home/bin/cargo" "+beta" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 81adb5f723818c18e11ca173bac298c945448e5053cd75ecdc614525ef398c48
[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" "81adb5f723818c18e11ca173bac298c945448e5053cd75ecdc614525ef398c48", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "81adb5f723818c18e11ca173bac298c945448e5053cd75ecdc614525ef398c48", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "81adb5f723818c18e11ca173bac298c945448e5053cd75ecdc614525ef398c48", kill_on_drop: false }`
[INFO] [stdout] 81adb5f723818c18e11ca173bac298c945448e5053cd75ecdc614525ef398c48
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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@sha256:6eabd152ff4036248d66efda456a36cb33d24b7291b33f25f75140726c88da35" "/opt/rustwide/cargo-home/bin/cargo" "+beta" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 4c5e59d100f393ed47a33dafb6b4b93a50ea6adedcab04fb05b7036524eb17b1
[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" "4c5e59d100f393ed47a33dafb6b4b93a50ea6adedcab04fb05b7036524eb17b1", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v1.0.33
[INFO] [stderr]    Compiling libloading v0.5.2
[INFO] [stderr]     Checking nix v0.14.1
[INFO] [stderr]     Checking gfx_core v0.9.2
[INFO] [stderr]     Checking png v0.16.6
[INFO] [stderr]     Checking rayon-core v1.7.1
[INFO] [stderr]     Checking andrew v0.2.1
[INFO] [stderr]     Checking rayon v1.3.1
[INFO] [stderr]     Checking gfx v0.18.2
[INFO] [stderr]     Checking gfx_device_gl v0.16.2
[INFO] [stderr]     Checking jpeg-decoder v0.1.19
[INFO] [stderr]     Checking image v0.23.6
[INFO] [stderr]     Checking wayland-commons v0.21.13
[INFO] [stderr]    Compiling serde_derive v1.0.114
[INFO] [stderr]     Checking wayland-client v0.21.13
[INFO] [stderr]     Checking wayland-protocols v0.21.13
[INFO] [stderr]     Checking piston-gfx_texture v0.41.0
[INFO] [stderr]     Checking piston2d-gfx_graphics v0.68.0
[INFO] [stderr]     Checking smithay-client-toolkit v0.4.6
[INFO] [stderr]     Checking pistoncore-input v0.28.1
[INFO] [stderr]     Checking winit v0.19.5
[INFO] [stderr]     Checking pistoncore-window v0.45.0
[INFO] [stderr]     Checking pistoncore-event_loop v0.50.0
[INFO] [stderr]     Checking glutin v0.21.2
[INFO] [stderr]     Checking piston v0.50.0
[INFO] [stderr]     Checking pistoncore-glutin_window v0.64.0
[INFO] [stderr]     Checking piston_window v0.109.0
[INFO] [stderr]     Checking snake_in_rust v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 50.43s
[INFO] running `Command { std: "docker" "inspect" "4c5e59d100f393ed47a33dafb6b4b93a50ea6adedcab04fb05b7036524eb17b1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4c5e59d100f393ed47a33dafb6b4b93a50ea6adedcab04fb05b7036524eb17b1", kill_on_drop: false }`
[INFO] [stdout] 4c5e59d100f393ed47a33dafb6b4b93a50ea6adedcab04fb05b7036524eb17b1