[INFO] fetching crate vkcargo 0.45.1...
[INFO] documenting vkcargo-0.45.1 against beta-2020-08-29 for beta-1.47-rustdoc-1
[INFO] extracting crate vkcargo 0.45.1 into /workspace/builds/worker-8/source
[INFO] validating manifest of crates.io crate vkcargo 0.45.1 on toolchain beta-2020-08-29
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2020-08-29" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate vkcargo 0.45.1
[INFO] finished tweaking crates.io crate vkcargo 0.45.1
[INFO] tweaked toml for crates.io crate vkcargo 0.45.1 written to /workspace/builds/worker-8/source/Cargo.toml
[INFO] crate crates.io crate vkcargo 0.45.1 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2020-08-29" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded git2 v0.13.1
[INFO] [stderr]   Downloaded libgit2-sys v0.12.2+1.0.0
[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-2020-08-29" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] e1358774ffa0a7e371687468ab79c755f8f9ed781ad46c40a0405ce383b411a1
[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" "e1358774ffa0a7e371687468ab79c755f8f9ed781ad46c40a0405ce383b411a1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "e1358774ffa0a7e371687468ab79c755f8f9ed781ad46c40a0405ce383b411a1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e1358774ffa0a7e371687468ab79c755f8f9ed781ad46c40a0405ce383b411a1", kill_on_drop: false }`
[INFO] [stdout] e1358774ffa0a7e371687468ab79c755f8f9ed781ad46c40a0405ce383b411a1
[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-2020-08-29" "doc" "--frozen" "--no-deps" "--document-private-items" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 81b1eb12826d4b23161b223c27925c277d1af1f48a427d420f23b6036a3691b5
[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" "81b1eb12826d4b23161b223c27925c277d1af1f48a427d420f23b6036a3691b5", kill_on_drop: false }`
[INFO] [stderr]    Compiling serde v1.0.106
[INFO] [stderr]    Compiling curl v0.4.28
[INFO] [stderr]     Checking bytesize v1.0.0
[INFO] [stderr]    Compiling im-rc v14.3.0
[INFO] [stderr]    Compiling libc v0.2.68
[INFO] [stderr]     Checking socket2 v0.3.12
[INFO] [stderr]     Checking filetime v0.2.9
[INFO] [stderr]     Checking jobserver v0.1.21
[INFO] [stderr]     Checking num_cpus v1.12.0
[INFO] [stderr]     Checking fs2 v0.4.3
[INFO] [stderr]     Checking bitmaps v2.1.0
[INFO] [stderr]     Checking clap v2.33.0
[INFO] [stderr]    Compiling serde_derive v1.0.106
[INFO] [stderr]     Checking rand_xoshiro v0.4.0
[INFO] [stderr]     Checking globset v0.4.5
[INFO] [stderr]     Checking env_logger v0.7.1
[INFO] [stderr]     Checking tempfile v3.1.0
[INFO] [stderr]     Checking tar v0.4.26
[INFO] [stderr]     Checking ignore v0.4.14
[INFO] [stderr]    Compiling cc v1.0.50
[INFO] [stderr]     Checking sized-chunks v0.5.3
[INFO] [stderr]    Compiling openssl-sys v0.9.55
[INFO] [stderr]    Compiling libz-sys v1.0.25
[INFO] [stderr]    Compiling libnghttp2-sys v0.1.3
[INFO] [stderr]    Compiling libssh2-sys v0.2.16
[INFO] [stderr]    Compiling curl-sys v0.4.30+curl-7.69.1
[INFO] [stderr]    Compiling libgit2-sys v0.12.2+1.0.0
[INFO] [stderr]     Checking flate2 v1.0.14
[INFO] [stderr]    Compiling openssl v0.10.29
[INFO] [stderr]     Checking git2 v0.13.1
[INFO] [stderr]     Checking crypto-hash v0.3.4
[INFO] [stderr]     Checking git2-curl v0.14.0
[INFO] [stderr]     Checking serde_json v1.0.51
[INFO] [stderr]     Checking semver v0.9.0
[INFO] [stderr]     Checking toml v0.5.6
[INFO] [stderr]     Checking serde_ignored v0.1.1
[INFO] [stderr]     Checking cargo-platform v0.1.1
[INFO] [stderr]     Checking crates-io v0.31.0
[INFO] [stderr]     Checking rustfix v0.5.1
[INFO] [stderr]  Documenting vkcargo v0.45.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1m 02s
[INFO] running `Command { std: "docker" "inspect" "81b1eb12826d4b23161b223c27925c277d1af1f48a427d420f23b6036a3691b5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "81b1eb12826d4b23161b223c27925c277d1af1f48a427d420f23b6036a3691b5", kill_on_drop: false }`
[INFO] [stdout] 81b1eb12826d4b23161b223c27925c277d1af1f48a427d420f23b6036a3691b5