[INFO] fetching crate yogurt-yaml 0.2.0...
[INFO] documenting yogurt-yaml-0.2.0 against 1.46.0 for beta-1.47-rustdoc-1
[INFO] extracting crate yogurt-yaml 0.2.0 into /workspace/builds/worker-8/source
[INFO] validating manifest of crates.io crate yogurt-yaml 0.2.0 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 yogurt-yaml 0.2.0
[INFO] finished tweaking crates.io crate yogurt-yaml 0.2.0
[INFO] tweaked toml for crates.io crate yogurt-yaml 0.2.0 written to /workspace/builds/worker-8/source/Cargo.toml
[INFO] crate crates.io crate yogurt-yaml 0.2.0 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] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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] d0a116517465bd51a418d931f3f911680a1910c0286c2a2161bb007b4187469c
[INFO] running `Command { std: "docker" "start" "-a" "d0a116517465bd51a418d931f3f911680a1910c0286c2a2161bb007b4187469c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "d0a116517465bd51a418d931f3f911680a1910c0286c2a2161bb007b4187469c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d0a116517465bd51a418d931f3f911680a1910c0286c2a2161bb007b4187469c", kill_on_drop: false }`
[INFO] [stdout] d0a116517465bd51a418d931f3f911680a1910c0286c2a2161bb007b4187469c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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] 4c26a799ca2c2059e903f431e281b5a86be7f9fcbbf3687085084cfa67bfb4ef
[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" "4c26a799ca2c2059e903f431e281b5a86be7f9fcbbf3687085084cfa67bfb4ef", kill_on_drop: false }`
[INFO] [stderr]     Checking linked-hash-map v0.5.2
[INFO] [stderr]     Checking argparse v0.2.2
[INFO] [stderr]     Checking yaml-rust v0.4.3
[INFO] [stderr]     Checking yogurt-yaml v0.2.0 (/opt/rustwide/workdir)
[INFO] [stderr]  Documenting yogurt-yaml v0.2.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 3.88s
[INFO] running `Command { std: "docker" "inspect" "4c26a799ca2c2059e903f431e281b5a86be7f9fcbbf3687085084cfa67bfb4ef", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4c26a799ca2c2059e903f431e281b5a86be7f9fcbbf3687085084cfa67bfb4ef", kill_on_drop: false }`
[INFO] [stdout] 4c26a799ca2c2059e903f431e281b5a86be7f9fcbbf3687085084cfa67bfb4ef