[INFO] cloning repository https://github.com/LImoritakeU/rust_playgroud
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/LImoritakeU/rust_playgroud" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FLImoritakeU%2Frust_playgroud", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FLImoritakeU%2Frust_playgroud'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 28adbc8277ad94b65997893f8a4d6a0a72a0edf1
[INFO] documenting LImoritakeU/rust_playgroud against beta-2020-08-29 for beta-1.47-rustdoc-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FLImoritakeU%2Frust_playgroud" "/workspace/builds/worker-5/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-5/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/LImoritakeU/rust_playgroud on toolchain beta-2020-08-29
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2020-08-29" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/LImoritakeU/rust_playgroud
[INFO] finished tweaking git repo https://github.com/LImoritakeU/rust_playgroud
[INFO] tweaked toml for git repo https://github.com/LImoritakeU/rust_playgroud written to /workspace/builds/worker-5/source/Cargo.toml
[INFO] crate git repo https://github.com/LImoritakeU/rust_playgroud already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2020-08-29" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded regex v1.1.5
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2020-08-29" "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] 5e8ef4d88a35748739b7c4f8cf38a217bbc670a689276a6ff401c7fc6690dc1d
[INFO] running `Command { std: "docker" "start" "-a" "5e8ef4d88a35748739b7c4f8cf38a217bbc670a689276a6ff401c7fc6690dc1d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "5e8ef4d88a35748739b7c4f8cf38a217bbc670a689276a6ff401c7fc6690dc1d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5e8ef4d88a35748739b7c4f8cf38a217bbc670a689276a6ff401c7fc6690dc1d", kill_on_drop: false }`
[INFO] [stdout] 5e8ef4d88a35748739b7c4f8cf38a217bbc670a689276a6ff401c7fc6690dc1d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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" "RUSTDOCFLAGS=--cap-lints=warn" "-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:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2020-08-29" "doc" "--frozen" "--no-deps" "--document-private-items" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] c8ea577e680e676693ab3c951f5c2fd58f67f1e74f37521377557666aeb99dc3
[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" "c8ea577e680e676693ab3c951f5c2fd58f67f1e74f37521377557666aeb99dc3", kill_on_drop: false }`
[INFO] [stderr]  Documenting playground v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2.73s
[INFO] running `Command { std: "docker" "inspect" "c8ea577e680e676693ab3c951f5c2fd58f67f1e74f37521377557666aeb99dc3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c8ea577e680e676693ab3c951f5c2fd58f67f1e74f37521377557666aeb99dc3", kill_on_drop: false }`
[INFO] [stdout] c8ea577e680e676693ab3c951f5c2fd58f67f1e74f37521377557666aeb99dc3