[INFO] cloning repository https://github.com/llamicron/rusty_guessing
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/llamicron/rusty_guessing" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fllamicron%2Frusty_guessing", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fllamicron%2Frusty_guessing'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 6d274e619e1713b381a1c1362c57349b597abab5
[INFO] checking llamicron/rusty_guessing against beta for pr-78714
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fllamicron%2Frusty_guessing" "/workspace/builds/worker-4/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/llamicron/rusty_guessing 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/llamicron/rusty_guessing
[INFO] finished tweaking git repo https://github.com/llamicron/rusty_guessing
[INFO] tweaked toml for git repo https://github.com/llamicron/rusty_guessing written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] crate git repo https://github.com/llamicron/rusty_guessing 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-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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] 21e99a392c70380c1bffd62cac08e7cceb15349dd2499cb333b5dc1ed31f39b8
[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" "21e99a392c70380c1bffd62cac08e7cceb15349dd2499cb333b5dc1ed31f39b8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "21e99a392c70380c1bffd62cac08e7cceb15349dd2499cb333b5dc1ed31f39b8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "21e99a392c70380c1bffd62cac08e7cceb15349dd2499cb333b5dc1ed31f39b8", kill_on_drop: false }`
[INFO] [stdout] 21e99a392c70380c1bffd62cac08e7cceb15349dd2499cb333b5dc1ed31f39b8
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] a26a06db46aa3f98d0c42fbf48c9d11a867d609bb93b5c07f98e1b55ea708146
[INFO] running `Command { std: "docker" "start" "-a" "a26a06db46aa3f98d0c42fbf48c9d11a867d609bb93b5c07f98e1b55ea708146", kill_on_drop: false }`
[INFO] [stderr]     Checking rand v0.3.15
[INFO] [stderr]     Checking guess v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.58s
[INFO] running `Command { std: "docker" "inspect" "a26a06db46aa3f98d0c42fbf48c9d11a867d609bb93b5c07f98e1b55ea708146", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a26a06db46aa3f98d0c42fbf48c9d11a867d609bb93b5c07f98e1b55ea708146", kill_on_drop: false }`
[INFO] [stdout] a26a06db46aa3f98d0c42fbf48c9d11a867d609bb93b5c07f98e1b55ea708146