[INFO] fetching crate ergo_sys 0.0.1...
[INFO] documenting ergo_sys-0.0.1 against 1.46.0 for beta-1.47-rustdoc-1
[INFO] extracting crate ergo_sys 0.0.1 into /workspace/builds/worker-2/source
[INFO] validating manifest of crates.io crate ergo_sys 0.0.1 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 crates.io crate ergo_sys 0.0.1
[INFO] finished tweaking crates.io crate ergo_sys 0.0.1
[INFO] tweaked toml for crates.io crate ergo_sys 0.0.1 written to /workspace/builds/worker-2/source/Cargo.toml
[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] [stderr]     Blocking waiting for file lock on package cache
[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-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" "+1.46.0" "metadata" "--no-deps" "--format-version=1", 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] 274043ce9949f3a8309ecd738b3622ce9232b6e22c47bffb4d7359c81583730e
[INFO] running `Command { std: "docker" "start" "-a" "274043ce9949f3a8309ecd738b3622ce9232b6e22c47bffb4d7359c81583730e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "274043ce9949f3a8309ecd738b3622ce9232b6e22c47bffb4d7359c81583730e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "274043ce9949f3a8309ecd738b3622ce9232b6e22c47bffb4d7359c81583730e", kill_on_drop: false }`
[INFO] [stdout] 274043ce9949f3a8309ecd738b3622ce9232b6e22c47bffb4d7359c81583730e
[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" "+1.46.0" "doc" "--frozen" "--no-deps" "--document-private-items" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 899ad66d211b3a89b14c71b3d78d7a73da7cfa16bd6655893866254c84220f2a
[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" "899ad66d211b3a89b14c71b3d78d7a73da7cfa16bd6655893866254c84220f2a", kill_on_drop: false }`
[INFO] [stderr]     Checking nix v0.17.0
[INFO] [stderr]     Checking rand v0.4.6
[INFO] [stderr]     Checking ctrlc v3.1.6
[INFO] [stderr]  Documenting ergo_sys v0.0.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 8.67s
[INFO] running `Command { std: "docker" "inspect" "899ad66d211b3a89b14c71b3d78d7a73da7cfa16bd6655893866254c84220f2a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "899ad66d211b3a89b14c71b3d78d7a73da7cfa16bd6655893866254c84220f2a", kill_on_drop: false }`
[INFO] [stdout] 899ad66d211b3a89b14c71b3d78d7a73da7cfa16bd6655893866254c84220f2a