[INFO] cloning repository https://github.com/JoshOrndorff/rustdoc-playground
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/JoshOrndorff/rustdoc-playground" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FJoshOrndorff%2Frustdoc-playground", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FJoshOrndorff%2Frustdoc-playground'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] f518b5729631df427b52267e783f3b77bc3a6815
[INFO] checking JoshOrndorff/rustdoc-playground against master#339e19697a39a78f4d669c217b7d21109215de41 for pr-81213
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FJoshOrndorff%2Frustdoc-playground" "/workspace/builds/worker-13/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-13/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/JoshOrndorff/rustdoc-playground on toolchain 339e19697a39a78f4d669c217b7d21109215de41
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+339e19697a39a78f4d669c217b7d21109215de41" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/JoshOrndorff/rustdoc-playground
[INFO] finished tweaking git repo https://github.com/JoshOrndorff/rustdoc-playground
[INFO] tweaked toml for git repo https://github.com/JoshOrndorff/rustdoc-playground written to /workspace/builds/worker-13/source/Cargo.toml
[INFO] crate git repo https://github.com/JoshOrndorff/rustdoc-playground already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+339e19697a39a78f4d669c217b7d21109215de41" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/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@sha256:21f1ed92105a0ef9b0d27ad8bdeb7f36f9f01ac17fffe3a3f3dc5241fc25d8f4" "/opt/rustwide/cargo-home/bin/cargo" "+339e19697a39a78f4d669c217b7d21109215de41" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 0f32cb216b1c4f5c28f4d6f05c15f071dca9be0f1ac024e3605fe229f86747ef
[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" "0f32cb216b1c4f5c28f4d6f05c15f071dca9be0f1ac024e3605fe229f86747ef", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "0f32cb216b1c4f5c28f4d6f05c15f071dca9be0f1ac024e3605fe229f86747ef", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0f32cb216b1c4f5c28f4d6f05c15f071dca9be0f1ac024e3605fe229f86747ef", kill_on_drop: false }`
[INFO] [stdout] 0f32cb216b1c4f5c28f4d6f05c15f071dca9be0f1ac024e3605fe229f86747ef
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/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@sha256:21f1ed92105a0ef9b0d27ad8bdeb7f36f9f01ac17fffe3a3f3dc5241fc25d8f4" "/opt/rustwide/cargo-home/bin/cargo" "+339e19697a39a78f4d669c217b7d21109215de41" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] b811bc074e501a89a88d6fbd2f8b10416cce01d8e54c176287f1da0de8bf5563
[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" "b811bc074e501a89a88d6fbd2f8b10416cce01d8e54c176287f1da0de8bf5563", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Checking sample-rust-doc v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.65s
[INFO] running `Command { std: "docker" "inspect" "b811bc074e501a89a88d6fbd2f8b10416cce01d8e54c176287f1da0de8bf5563", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b811bc074e501a89a88d6fbd2f8b10416cce01d8e54c176287f1da0de8bf5563", kill_on_drop: false }`
[INFO] [stdout] b811bc074e501a89a88d6fbd2f8b10416cce01d8e54c176287f1da0de8bf5563