[INFO] cloning repository https://github.com/itytophile/maze_generator_Rust
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/itytophile/maze_generator_Rust" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fitytophile%2Fmaze_generator_Rust", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fitytophile%2Fmaze_generator_Rust'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] a7bf0c77556b5b2f8b8161dfc73d81064d81ac60
[INFO] checking itytophile/maze_generator_Rust against master#4fa76a4a7742bb9c1febe33019f5a9e7e4839a65 for pr-83744
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fitytophile%2Fmaze_generator_Rust" "/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/itytophile/maze_generator_Rust on toolchain 4fa76a4a7742bb9c1febe33019f5a9e7e4839a65
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+4fa76a4a7742bb9c1febe33019f5a9e7e4839a65" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/itytophile/maze_generator_Rust
[INFO] finished tweaking git repo https://github.com/itytophile/maze_generator_Rust
[INFO] tweaked toml for git repo https://github.com/itytophile/maze_generator_Rust written to /workspace/builds/worker-7/source/Cargo.toml
[INFO] crate git repo https://github.com/itytophile/maze_generator_Rust already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+4fa76a4a7742bb9c1febe33019f5a9e7e4839a65" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+4fa76a4a7742bb9c1febe33019f5a9e7e4839a65" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 85f50dc7465c1f73890fe0f955a00d4186a2529d32902019d2d104ab99d8bd4c
[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" "85f50dc7465c1f73890fe0f955a00d4186a2529d32902019d2d104ab99d8bd4c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "85f50dc7465c1f73890fe0f955a00d4186a2529d32902019d2d104ab99d8bd4c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "85f50dc7465c1f73890fe0f955a00d4186a2529d32902019d2d104ab99d8bd4c", kill_on_drop: false }`
[INFO] [stdout] 85f50dc7465c1f73890fe0f955a00d4186a2529d32902019d2d104ab99d8bd4c
[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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+4fa76a4a7742bb9c1febe33019f5a9e7e4839a65" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] f5a2244b1e3dff43d20487b8e79fb28c69bcce16eb7273b7e2d05438fcb9c27b
[INFO] running `Command { std: "docker" "start" "-a" "f5a2244b1e3dff43d20487b8e79fb28c69bcce16eb7273b7e2d05438fcb9c27b", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.74
[INFO] [stderr]    Compiling cfg-if v0.1.10
[INFO] [stderr]    Compiling version-compare v0.0.10
[INFO] [stderr]    Compiling sdl2 v0.34.2
[INFO] [stderr]    Compiling sdl2-sys v0.34.2
[INFO] [stderr]     Checking getrandom v0.1.14
[INFO] [stderr]     Checking rand_core v0.5.1
[INFO] [stderr]     Checking rand_chacha v0.2.2
[INFO] [stderr]     Checking rand v0.7.3
[INFO] [stderr]     Checking laby v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 8.15s
[INFO] running `Command { std: "docker" "inspect" "f5a2244b1e3dff43d20487b8e79fb28c69bcce16eb7273b7e2d05438fcb9c27b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f5a2244b1e3dff43d20487b8e79fb28c69bcce16eb7273b7e2d05438fcb9c27b", kill_on_drop: false }`
[INFO] [stdout] f5a2244b1e3dff43d20487b8e79fb28c69bcce16eb7273b7e2d05438fcb9c27b