[INFO] cloning repository https://github.com/miromotl/iron-gcd
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/miromotl/iron-gcd" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmiromotl%2Firon-gcd", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmiromotl%2Firon-gcd'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 4f4fe8ec635fd41376e77ebf98ec4817847e980a
[INFO] documenting miromotl/iron-gcd against 1.46.0 for beta-1.47-rustdoc-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmiromotl%2Firon-gcd" "/workspace/builds/worker-9/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-9/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/miromotl/iron-gcd on toolchain 1.46.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.46.0" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/miromotl/iron-gcd
[INFO] finished tweaking git repo https://github.com/miromotl/iron-gcd
[INFO] tweaked toml for git repo https://github.com/miromotl/iron-gcd written to /workspace/builds/worker-9/source/Cargo.toml
[INFO] crate git repo https://github.com/miromotl/iron-gcd already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.46.0" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr] error: the lock file /workspace/builds/worker-9/source/Cargo.lock needs to be updated but --locked was passed to prevent this
[INFO] [stderr] If you want to try to generate the lock file without accessing the network, use the --offline flag.
[INFO] the lockfile is outdated, regenerating it
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.46.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.46.0" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/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" "+1.46.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] f613296f9d70d26eb494fd0bfdfe801a39c30e6189799429b2d3706dba1d57fb
[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" "f613296f9d70d26eb494fd0bfdfe801a39c30e6189799429b2d3706dba1d57fb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "f613296f9d70d26eb494fd0bfdfe801a39c30e6189799429b2d3706dba1d57fb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f613296f9d70d26eb494fd0bfdfe801a39c30e6189799429b2d3706dba1d57fb", kill_on_drop: false }`
[INFO] [stdout] f613296f9d70d26eb494fd0bfdfe801a39c30e6189799429b2d3706dba1d57fb
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/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" "+1.46.0" "doc" "--frozen" "--no-deps" "--document-private-items" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] d3eafce7e4eb5bc779509d1523acee75631737225588adb0a5d7211589988493
[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" "d3eafce7e4eb5bc779509d1523acee75631737225588adb0a5d7211589988493", kill_on_drop: false }`
[INFO] [stderr]     Checking route-recognizer v0.1.13
[INFO] [stderr]     Checking unicode-bidi v0.2.6
[INFO] [stderr]     Checking log v0.3.9
[INFO] [stderr]     Checking idna v0.1.5
[INFO] [stderr]     Checking time v0.1.44
[INFO] [stderr]     Checking num_cpus v0.2.13
[INFO] [stderr]     Checking num-traits v0.1.43
[INFO] [stderr]     Checking uuid v0.2.3
[INFO] [stderr]     Checking uuid v0.1.18
[INFO] [stderr]     Checking serde_json v0.7.4
[INFO] [stderr]     Checking hpack v0.2.0
[INFO] [stderr]     Checking mime v0.2.6
[INFO] [stderr]     Checking solicit v0.4.4
[INFO] [stderr]     Checking url v0.2.38
[INFO] [stderr]     Checking url v0.5.10
[INFO] [stderr]     Checking url v1.7.2
[INFO] [stderr]     Checking cookie v0.2.5
[INFO] [stderr]     Checking hyper v0.8.1
[INFO] [stderr]     Checking iron v0.3.1
[INFO] [stderr]     Checking persistent v0.1.0
[INFO] [stderr]     Checking router v0.1.1
[INFO] [stderr]     Checking bodyparser v0.3.0
[INFO] [stderr]     Checking urlencoded v0.3.0
[INFO] [stderr]  Documenting iron-gcd v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 9.81s
[INFO] running `Command { std: "docker" "inspect" "d3eafce7e4eb5bc779509d1523acee75631737225588adb0a5d7211589988493", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d3eafce7e4eb5bc779509d1523acee75631737225588adb0a5d7211589988493", kill_on_drop: false }`
[INFO] [stdout] d3eafce7e4eb5bc779509d1523acee75631737225588adb0a5d7211589988493