[INFO] cloning repository https://github.com/joyent/rust-muppet
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/joyent/rust-muppet" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjoyent%2Frust-muppet", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjoyent%2Frust-muppet'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 13f9909bc0debc0488522f4c5249775ba5e751b7
[INFO] documenting joyent/rust-muppet 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%2Fjoyent%2Frust-muppet" "/workspace/builds/worker-1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/joyent/rust-muppet 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/joyent/rust-muppet
[INFO] finished tweaking git repo https://github.com/joyent/rust-muppet
[INFO] tweaked toml for git repo https://github.com/joyent/rust-muppet written to /workspace/builds/worker-1/source/Cargo.toml
[INFO] crate git repo https://github.com/joyent/rust-muppet 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]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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] 76813ebc3c396a7aa385177d6628e743089b3960bb91d5e61049e8ed67273972
[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" "76813ebc3c396a7aa385177d6628e743089b3960bb91d5e61049e8ed67273972", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "76813ebc3c396a7aa385177d6628e743089b3960bb91d5e61049e8ed67273972", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "76813ebc3c396a7aa385177d6628e743089b3960bb91d5e61049e8ed67273972", kill_on_drop: false }`
[INFO] [stdout] 76813ebc3c396a7aa385177d6628e743089b3960bb91d5e61049e8ed67273972
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 219c5f632621d013807832e6ef5fcc2aa50245696d4015ba5216e9292f59033f
[INFO] running `Command { std: "docker" "start" "-a" "219c5f632621d013807832e6ef5fcc2aa50245696d4015ba5216e9292f59033f", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling serde v1.0.89
[INFO] [stderr]    Compiling slog v2.4.1
[INFO] [stderr]    Compiling nix v0.13.0
[INFO] [stderr]    Compiling syn v0.15.29
[INFO] [stderr]     Checking snowflake v1.3.0
[INFO] [stderr]     Checking atty v0.2.11
[INFO] [stderr]     Checking chrono v0.4.6
[INFO] [stderr]     Checking num v0.1.42
[INFO] [stderr]    Compiling syn v0.14.9
[INFO] [stderr]     Checking chrono v0.3.0
[INFO] [stderr]     Checking clap v2.32.0
[INFO] [stderr]    Compiling zookeeper_derive v0.4.0
[INFO] [stderr]     Checking zookeeper v0.5.6
[INFO] [stderr]    Compiling serde_derive v1.0.89
[INFO] [stderr]     Checking serde_json v1.0.39
[INFO] [stderr]     Checking slog-json v2.3.0
[INFO] [stderr]     Checking slog-bunyan v2.1.1-pre (https://github.com/kellymclaughlin/bunyan?branch=build-on-smartos#986664e3)
[INFO] [stderr]  Documenting rust-muppet v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 39.25s
[INFO] running `Command { std: "docker" "inspect" "219c5f632621d013807832e6ef5fcc2aa50245696d4015ba5216e9292f59033f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "219c5f632621d013807832e6ef5fcc2aa50245696d4015ba5216e9292f59033f", kill_on_drop: false }`
[INFO] [stdout] 219c5f632621d013807832e6ef5fcc2aa50245696d4015ba5216e9292f59033f