[INFO] cloning repository https://github.com/AllenShi/rust_playground
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/AllenShi/rust_playground" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FAllenShi%2Frust_playground", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FAllenShi%2Frust_playground'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 24a8f729bf3ff9f478679b27f53960d09d4df205
[INFO] documenting AllenShi/rust_playground against beta-2021-08-01 for beta-1.55-rustdoc-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FAllenShi%2Frust_playground" "/workspace/builds/worker-2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/AllenShi/rust_playground on toolchain beta-2021-08-01
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-08-01" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/AllenShi/rust_playground
[INFO] finished tweaking git repo https://github.com/AllenShi/rust_playground
[INFO] tweaked toml for git repo https://github.com/AllenShi/rust_playground written to /workspace/builds/worker-2/source/Cargo.toml
[INFO] crate git repo https://github.com/AllenShi/rust_playground already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-08-01" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-08-01" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] f8569d59e414d832e3e6b1dc319082289529ef72082687808ba0e7bb9d1650a2
[INFO] running `Command { std: "docker" "start" "-a" "f8569d59e414d832e3e6b1dc319082289529ef72082687808ba0e7bb9d1650a2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "f8569d59e414d832e3e6b1dc319082289529ef72082687808ba0e7bb9d1650a2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f8569d59e414d832e3e6b1dc319082289529ef72082687808ba0e7bb9d1650a2", kill_on_drop: false }`
[INFO] [stdout] f8569d59e414d832e3e6b1dc319082289529ef72082687808ba0e7bb9d1650a2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-08-01" "doc" "--frozen" "--no-deps" "--document-private-items" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 0d2be59efc9acb668e7a3efdd0a0c0ad6ad4bbbaf9f6f96cca485f490eef26b0
[INFO] running `Command { std: "docker" "start" "-a" "0d2be59efc9acb668e7a3efdd0a0c0ad6ad4bbbaf9f6f96cca485f490eef26b0", kill_on_drop: false }`
[INFO] [stderr]  Documenting rust_playground v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.48s
[INFO] running `Command { std: "docker" "inspect" "0d2be59efc9acb668e7a3efdd0a0c0ad6ad4bbbaf9f6f96cca485f490eef26b0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0d2be59efc9acb668e7a3efdd0a0c0ad6ad4bbbaf9f6f96cca485f490eef26b0", kill_on_drop: false }`
[INFO] [stdout] 0d2be59efc9acb668e7a3efdd0a0c0ad6ad4bbbaf9f6f96cca485f490eef26b0