[INFO] cloning repository https://github.com/jay6987/sync-pipe
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/jay6987/sync-pipe" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjay6987%2Fsync-pipe", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjay6987%2Fsync-pipe'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 187133ba1aeed468b4692e15f05e9c4ea48a4e44
[INFO] documenting jay6987/sync-pipe against try#a394c9cd9ec93787f09a7ac445b14cc674a94549 for pr-151918
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjay6987%2Fsync-pipe" "/workspace/builds/worker-6-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-6-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/jay6987/sync-pipe
[INFO] finished tweaking git repo https://github.com/jay6987/sync-pipe
[INFO] tweaked toml for git repo https://github.com/jay6987/sync-pipe written to /workspace/builds/worker-6-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/jay6987/sync-pipe on toolchain a394c9cd9ec93787f09a7ac445b14cc674a94549
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+a394c9cd9ec93787f09a7ac445b14cc674a94549" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/jay6987/sync-pipe already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+a394c9cd9ec93787f09a7ac445b14cc674a94549" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/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@sha256:61361fe0aef631f17e9d025a70c5a647956f8c671dd02950a60ad3f5cc5526d7" "/opt/rustwide/cargo-home/bin/cargo" "+a394c9cd9ec93787f09a7ac445b14cc674a94549" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 61d85e6860e8a9e8cd0248f645d6a51e3ef43622967db1b1067e381beeb6eba9
[INFO] running `Command { std: "docker" "start" "-a" "61d85e6860e8a9e8cd0248f645d6a51e3ef43622967db1b1067e381beeb6eba9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "61d85e6860e8a9e8cd0248f645d6a51e3ef43622967db1b1067e381beeb6eba9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "61d85e6860e8a9e8cd0248f645d6a51e3ef43622967db1b1067e381beeb6eba9", kill_on_drop: false }`
[INFO] [stdout] 61d85e6860e8a9e8cd0248f645d6a51e3ef43622967db1b1067e381beeb6eba9
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/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" "RUSTDOCFLAGS=--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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:61361fe0aef631f17e9d025a70c5a647956f8c671dd02950a60ad3f5cc5526d7" "/opt/rustwide/cargo-home/bin/cargo" "+a394c9cd9ec93787f09a7ac445b14cc674a94549" "doc" "--frozen" "--no-deps" "--document-private-items" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 8f397f1c9f1bb74fe95185cc62e2e8110b1e2099f11256aba6c58bb1832e775c
[INFO] running `Command { std: "docker" "start" "-a" "8f397f1c9f1bb74fe95185cc62e2e8110b1e2099f11256aba6c58bb1832e775c", kill_on_drop: false }`
[INFO] [stderr] Error response from daemon: failed to create task for container: failed to create shim task: OCI runtime create failed: runc create failed: unable to start container process: unable to apply cgroup configuration: unable to start unit "docker-8f397f1c9f1bb74fe95185cc62e2e8110b1e2099f11256aba6c58bb1832e775c.scope" (properties [{Name:Description Value:"libcontainer container 8f397f1c9f1bb74fe95185cc62e2e8110b1e2099f11256aba6c58bb1832e775c"} {Name:Slice Value:"system.slice"} {Name:Delegate Value:true} {Name:PIDs Value:@au [2733106]} {Name:MemoryAccounting Value:true} {Name:CPUAccounting Value:true} {Name:IOAccounting Value:true} {Name:TasksAccounting Value:true} {Name:DefaultDependencies Value:false}]): Message recipient disconnected from message bus without replying: unknown
[INFO] running `Command { std: "docker" "inspect" "8f397f1c9f1bb74fe95185cc62e2e8110b1e2099f11256aba6c58bb1832e775c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8f397f1c9f1bb74fe95185cc62e2e8110b1e2099f11256aba6c58bb1832e775c", kill_on_drop: false }`
[INFO] [stdout] 8f397f1c9f1bb74fe95185cc62e2e8110b1e2099f11256aba6c58bb1832e775c