[INFO] cloning repository https://github.com/nelsonatgithub/fctrl2
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/nelsonatgithub/fctrl2" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fnelsonatgithub%2Ffctrl2", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fnelsonatgithub%2Ffctrl2'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 9261d1344576d33a692da4c0c2b382607b71214e
[INFO] documenting nelsonatgithub/fctrl2 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%2Fnelsonatgithub%2Ffctrl2" "/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/nelsonatgithub/fctrl2 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/nelsonatgithub/fctrl2
[INFO] finished tweaking git repo https://github.com/nelsonatgithub/fctrl2
[INFO] tweaked toml for git repo https://github.com/nelsonatgithub/fctrl2 written to /workspace/builds/worker-2/source/Cargo.toml
[INFO] crate git repo https://github.com/nelsonatgithub/fctrl2 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] 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" "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] a012469915fe5fc960ec364556404cdaf7fd7966ce4e294e3be2d6712a9d09c9
[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" "a012469915fe5fc960ec364556404cdaf7fd7966ce4e294e3be2d6712a9d09c9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "a012469915fe5fc960ec364556404cdaf7fd7966ce4e294e3be2d6712a9d09c9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a012469915fe5fc960ec364556404cdaf7fd7966ce4e294e3be2d6712a9d09c9", kill_on_drop: false }`
[INFO] [stdout] a012469915fe5fc960ec364556404cdaf7fd7966ce4e294e3be2d6712a9d09c9
[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" "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] 8adbbb9d87b8d9e4a91fe881e9a0920873082cc7ed8821e718746ca97b7feca2
[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" "8adbbb9d87b8d9e4a91fe881e9a0920873082cc7ed8821e718746ca97b7feca2", kill_on_drop: false }`
[INFO] [stderr]  Documenting FCTRL2 v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.43s
[INFO] running `Command { std: "docker" "inspect" "8adbbb9d87b8d9e4a91fe881e9a0920873082cc7ed8821e718746ca97b7feca2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8adbbb9d87b8d9e4a91fe881e9a0920873082cc7ed8821e718746ca97b7feca2", kill_on_drop: false }`
[INFO] [stdout] 8adbbb9d87b8d9e4a91fe881e9a0920873082cc7ed8821e718746ca97b7feca2