[INFO] fetching crate clap_flags 0.5.0...
[INFO] documenting clap_flags-0.5.0 against beta-2020-10-09 for beta-1.48-rustdoc-1
[INFO] extracting crate clap_flags 0.5.0 into /workspace/builds/worker-2/source
[INFO] validating manifest of crates.io crate clap_flags 0.5.0 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 clap_flags 0.5.0
[INFO] finished tweaking crates.io crate clap_flags 0.5.0
[INFO] tweaked toml for crates.io crate clap_flags 0.5.0 written to /workspace/builds/worker-2/source/Cargo.toml
[INFO] crate crates.io crate clap_flags 0.5.0 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 http-service v0.4.0
[INFO] [stderr]   Downloaded proc-macro-error-attr v0.4.10
[INFO] [stderr]   Downloaded http-service-hyper v0.4.1
[INFO] [stderr]   Downloaded serde_qs v0.5.2
[INFO] [stderr]   Downloaded proc-macro-error v0.4.10
[INFO] [stderr]   Downloaded data-encoding v2.2.0
[INFO] [stderr]   Downloaded tide v0.6.0
[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" "+beta-2020-10-09" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 5e8677b5ae1c6e06f365fd75719a04678407beefe72392cecdb9749164c18b0e
[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" "5e8677b5ae1c6e06f365fd75719a04678407beefe72392cecdb9749164c18b0e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "5e8677b5ae1c6e06f365fd75719a04678407beefe72392cecdb9749164c18b0e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5e8677b5ae1c6e06f365fd75719a04678407beefe72392cecdb9749164c18b0e", kill_on_drop: false }`
[INFO] [stdout] 5e8677b5ae1c6e06f365fd75719a04678407beefe72392cecdb9749164c18b0e
[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" "+beta-2020-10-09" "doc" "--frozen" "--no-deps" "--document-private-items" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 9a56aff5b6d761cb5260b61746052185e9596433636d43e1faebcca31c24721c
[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" "9a56aff5b6d761cb5260b61746052185e9596433636d43e1faebcca31c24721c", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.9
[INFO] [stderr]    Compiling syn v1.0.16
[INFO] [stderr]    Compiling libc v0.2.67
[INFO] [stderr]    Compiling log v0.4.8
[INFO] [stderr]     Checking regex-syntax v0.6.15
[INFO] [stderr]    Compiling proc-macro-error-attr v0.4.10
[INFO] [stderr]    Compiling proc-macro-error v0.4.10
[INFO] [stderr]     Checking aho-corasick v0.7.9
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking clap v2.33.0
[INFO] [stderr]    Compiling quote v1.0.2
[INFO] [stderr]     Checking regex v1.3.4
[INFO] [stderr]     Checking env_logger v0.7.1
[INFO] [stderr]     Checking pretty_env_logger v0.4.0
[INFO] [stderr]    Compiling syn-mid v0.5.0
[INFO] [stderr]    Compiling structopt-derive v0.4.4
[INFO] [stderr]     Checking structopt v0.3.11
[INFO] [stderr]  Documenting clap_flags v0.5.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 35.34s
[INFO] running `Command { std: "docker" "inspect" "9a56aff5b6d761cb5260b61746052185e9596433636d43e1faebcca31c24721c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9a56aff5b6d761cb5260b61746052185e9596433636d43e1faebcca31c24721c", kill_on_drop: false }`
[INFO] [stdout] 9a56aff5b6d761cb5260b61746052185e9596433636d43e1faebcca31c24721c
