[INFO] cloning repository https://github.com/simonschmoll/rustling-solution
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/simonschmoll/rustling-solution" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsimonschmoll%2Frustling-solution", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsimonschmoll%2Frustling-solution'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 5876783fe023a8cd8d9167550f7773de4f47346e
[INFO] checking simonschmoll/rustling-solution against beta for pr-78714
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsimonschmoll%2Frustling-solution" "/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/simonschmoll/rustling-solution 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/simonschmoll/rustling-solution
[INFO] finished tweaking git repo https://github.com/simonschmoll/rustling-solution
[INFO] tweaked toml for git repo https://github.com/simonschmoll/rustling-solution written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] crate git repo https://github.com/simonschmoll/rustling-solution 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] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 243d04628e39bbb5670674fdfb265f72a283e2f733e93b20f638f3b763d7781e
[INFO] running `Command { std: "docker" "start" "-a" "243d04628e39bbb5670674fdfb265f72a283e2f733e93b20f638f3b763d7781e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "243d04628e39bbb5670674fdfb265f72a283e2f733e93b20f638f3b763d7781e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "243d04628e39bbb5670674fdfb265f72a283e2f733e93b20f638f3b763d7781e", kill_on_drop: false }`
[INFO] [stdout] 243d04628e39bbb5670674fdfb265f72a283e2f733e93b20f638f3b763d7781e
[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] [stdout] bfb113c48d01cc712356300979f0401db7f635368f7b076534f043fbdf0ebc30
[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" "bfb113c48d01cc712356300979f0401db7f635368f7b076534f043fbdf0ebc30", kill_on_drop: false }`
[INFO] [stderr]     Checking normalize-line-endings v0.2.2
[INFO] [stderr]     Checking float-cmp v0.4.0
[INFO] [stderr]     Checking rustlings v2.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Checking predicates v1.0.1
[INFO] [stderr]     Checking assert_cmd v0.11.1
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 3.54s
[INFO] running `Command { std: "docker" "inspect" "bfb113c48d01cc712356300979f0401db7f635368f7b076534f043fbdf0ebc30", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "bfb113c48d01cc712356300979f0401db7f635368f7b076534f043fbdf0ebc30", kill_on_drop: false }`
[INFO] [stdout] bfb113c48d01cc712356300979f0401db7f635368f7b076534f043fbdf0ebc30