[INFO] fetching crate automat 0.0.7...
[INFO] documenting automat-0.0.7 against beta-2020-10-09 for beta-1.48-rustdoc-1
[INFO] extracting crate automat 0.0.7 into /workspace/builds/worker-8/source
[INFO] validating manifest of crates.io crate automat 0.0.7 on toolchain beta-2020-10-09
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2020-10-09" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate automat 0.0.7
[INFO] finished tweaking crates.io crate automat 0.0.7
[INFO] tweaked toml for crates.io crate automat 0.0.7 written to /workspace/builds/worker-8/source/Cargo.toml
[INFO] crate crates.io crate automat 0.0.7 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2020-10-09" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded assert_cmd v1.0.1
[INFO] [stderr]   Downloaded predicates v1.0.4
[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" "+beta-2020-10-09" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] efa5e32a0946465ba791fd42a6603a776983bb05ac103eb40d1d6451ecf8fa42
[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" "efa5e32a0946465ba791fd42a6603a776983bb05ac103eb40d1d6451ecf8fa42", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "efa5e32a0946465ba791fd42a6603a776983bb05ac103eb40d1d6451ecf8fa42", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "efa5e32a0946465ba791fd42a6603a776983bb05ac103eb40d1d6451ecf8fa42", kill_on_drop: false }`
[INFO] [stdout] efa5e32a0946465ba791fd42a6603a776983bb05ac103eb40d1d6451ecf8fa42
[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" "+beta-2020-10-09" "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] c291d04f05a1c29803b8d6aa5a4a927f46dea6cda468e5d28a775ee1ee136068
[INFO] running `Command { std: "docker" "start" "-a" "c291d04f05a1c29803b8d6aa5a4a927f46dea6cda468e5d28a775ee1ee136068", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.18
[INFO] [stderr]    Compiling syn v1.0.31
[INFO] [stderr]    Compiling libc v0.2.71
[INFO] [stderr]    Compiling byteorder v1.3.4
[INFO] [stderr]    Compiling serde v1.0.113
[INFO] [stderr]     Checking unicode-width v0.1.7
[INFO] [stderr]    Compiling proc-macro-error-attr v1.0.2
[INFO] [stderr]    Compiling proc-macro-error v1.0.2
[INFO] [stderr]     Checking textwrap v0.11.0
[INFO] [stderr]     Checking regex-automata v0.1.9
[INFO] [stderr]    Compiling quote v1.0.7
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking clap v2.33.1
[INFO] [stderr]     Checking bstr v0.2.13
[INFO] [stderr]    Compiling syn-mid v0.5.0
[INFO] [stderr]     Checking csv v1.1.3
[INFO] [stderr]    Compiling structopt-derive v0.4.7
[INFO] [stderr]     Checking structopt v0.3.14
[INFO] [stderr]  Documenting automat v0.0.7 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 32.50s
[INFO] running `Command { std: "docker" "inspect" "c291d04f05a1c29803b8d6aa5a4a927f46dea6cda468e5d28a775ee1ee136068", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c291d04f05a1c29803b8d6aa5a4a927f46dea6cda468e5d28a775ee1ee136068", kill_on_drop: false }`
[INFO] [stdout] c291d04f05a1c29803b8d6aa5a4a927f46dea6cda468e5d28a775ee1ee136068
