[INFO] cloning repository https://github.com/tronje/dir-prompt-helper
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/tronje/dir-prompt-helper" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftronje%2Fdir-prompt-helper", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftronje%2Fdir-prompt-helper'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] b8f1c993f12b74e7a4f3982053eaa295afe24f66
[INFO] documenting tronje/dir-prompt-helper 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%2Ftronje%2Fdir-prompt-helper" "/workspace/builds/worker-6/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-6/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/tronje/dir-prompt-helper 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/tronje/dir-prompt-helper
[INFO] finished tweaking git repo https://github.com/tronje/dir-prompt-helper
[INFO] tweaked toml for git repo https://github.com/tronje/dir-prompt-helper written to /workspace/builds/worker-6/source/Cargo.toml
[INFO] crate git repo https://github.com/tronje/dir-prompt-helper 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]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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] [stdout] a4bad47c4e68131c28b51f41dcc2102b9f8c6ca5886758a76b5687fcc7ded038
[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" "a4bad47c4e68131c28b51f41dcc2102b9f8c6ca5886758a76b5687fcc7ded038", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "a4bad47c4e68131c28b51f41dcc2102b9f8c6ca5886758a76b5687fcc7ded038", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a4bad47c4e68131c28b51f41dcc2102b9f8c6ca5886758a76b5687fcc7ded038", kill_on_drop: false }`
[INFO] [stdout] a4bad47c4e68131c28b51f41dcc2102b9f8c6ca5886758a76b5687fcc7ded038
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 93e94191adfe8c0c1a7e7eecaa673c83f4189e7b8226a19c233b14d099105a70
[INFO] running `Command { std: "docker" "start" "-a" "93e94191adfe8c0c1a7e7eecaa673c83f4189e7b8226a19c233b14d099105a70", kill_on_drop: false }`
[INFO] [stderr]  Documenting dir-prompt-helper v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.44s
[INFO] running `Command { std: "docker" "inspect" "93e94191adfe8c0c1a7e7eecaa673c83f4189e7b8226a19c233b14d099105a70", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "93e94191adfe8c0c1a7e7eecaa673c83f4189e7b8226a19c233b14d099105a70", kill_on_drop: false }`
[INFO] [stdout] 93e94191adfe8c0c1a7e7eecaa673c83f4189e7b8226a19c233b14d099105a70