[INFO] fetching crate dutree 0.2.16...
[INFO] documenting dutree-0.2.16 against 1.47.0 for beta-1.48-rustdoc-1
[INFO] extracting crate dutree 0.2.16 into /workspace/builds/worker-9/source
[INFO] validating manifest of crates.io crate dutree 0.2.16 on toolchain 1.47.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.47.0" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate dutree 0.2.16
[INFO] finished tweaking crates.io crate dutree 0.2.16
[INFO] tweaked toml for crates.io crate dutree 0.2.16 written to /workspace/builds/worker-9/source/Cargo.toml
[INFO] crate crates.io crate dutree 0.2.16 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.47.0" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[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" "+1.47.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 31b13e98df88f6845ef64c94af5d7bfc45990e9b0c9eb6e97908f8b2ad3b3afc
[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" "31b13e98df88f6845ef64c94af5d7bfc45990e9b0c9eb6e97908f8b2ad3b3afc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "31b13e98df88f6845ef64c94af5d7bfc45990e9b0c9eb6e97908f8b2ad3b3afc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "31b13e98df88f6845ef64c94af5d7bfc45990e9b0c9eb6e97908f8b2ad3b3afc", kill_on_drop: false }`
[INFO] [stdout] 31b13e98df88f6845ef64c94af5d7bfc45990e9b0c9eb6e97908f8b2ad3b3afc
[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" "+1.47.0" "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] cfae53c53fa87e211624ff91f49a89f09b78f2461b71ba3502db52dd75da6f46
[INFO] running `Command { std: "docker" "start" "-a" "cfae53c53fa87e211624ff91f49a89f09b78f2461b71ba3502db52dd75da6f46", kill_on_drop: false }`
[INFO] [stderr]     Checking arc-swap v0.4.6
[INFO] [stderr]     Checking getopts v0.2.21
[INFO] [stderr]     Checking terminal_size v0.1.12
[INFO] [stderr]     Checking signal-hook-registry v1.2.0
[INFO] [stderr]     Checking signal-hook v0.1.15
[INFO] [stderr]  Documenting dutree v0.2.16 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 3.36s
[INFO] running `Command { std: "docker" "inspect" "cfae53c53fa87e211624ff91f49a89f09b78f2461b71ba3502db52dd75da6f46", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "cfae53c53fa87e211624ff91f49a89f09b78f2461b71ba3502db52dd75da6f46", kill_on_drop: false }`
[INFO] [stdout] cfae53c53fa87e211624ff91f49a89f09b78f2461b71ba3502db52dd75da6f46
