[INFO] fetching crate semver-parser 0.10.0...
[INFO] documenting semver-parser-0.10.0 against beta-2020-10-09 for beta-1.48-rustdoc-1
[INFO] extracting crate semver-parser 0.10.0 into /workspace/builds/worker-4/source
[INFO] validating manifest of crates.io crate semver-parser 0.10.0 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 semver-parser 0.10.0
[INFO] finished tweaking crates.io crate semver-parser 0.10.0
[INFO] tweaked toml for crates.io crate semver-parser 0.10.0 written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] crate crates.io crate semver-parser 0.10.0 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] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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] 16d69b331320919501fb50669a41b4c16fdc84ba65b66fffeaeb50dc8388b5d8
[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" "16d69b331320919501fb50669a41b4c16fdc84ba65b66fffeaeb50dc8388b5d8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "16d69b331320919501fb50669a41b4c16fdc84ba65b66fffeaeb50dc8388b5d8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "16d69b331320919501fb50669a41b4c16fdc84ba65b66fffeaeb50dc8388b5d8", kill_on_drop: false }`
[INFO] [stdout] 16d69b331320919501fb50669a41b4c16fdc84ba65b66fffeaeb50dc8388b5d8
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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] df321e0a80066aee2b522de798eb4bd5a7ba1d6b79c68ed29b710c30278a3f19
[INFO] running `Command { std: "docker" "start" "-a" "df321e0a80066aee2b522de798eb4bd5a7ba1d6b79c68ed29b710c30278a3f19", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v1.0.34
[INFO] [stderr]    Compiling pest_generator v2.1.3
[INFO] [stderr]    Compiling pest_derive v2.1.0
[INFO] [stderr]  Documenting semver-parser v0.10.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 13.44s
[INFO] running `Command { std: "docker" "inspect" "df321e0a80066aee2b522de798eb4bd5a7ba1d6b79c68ed29b710c30278a3f19", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "df321e0a80066aee2b522de798eb4bd5a7ba1d6b79c68ed29b710c30278a3f19", kill_on_drop: false }`
[INFO] [stdout] df321e0a80066aee2b522de798eb4bd5a7ba1d6b79c68ed29b710c30278a3f19
