[INFO] fetching crate cargo-authors 0.5.0...
[INFO] documenting cargo-authors-0.5.0 against beta-2020-08-29 for beta-1.47-rustdoc-1
[INFO] extracting crate cargo-authors 0.5.0 into /workspace/builds/worker-8/source
[INFO] validating manifest of crates.io crate cargo-authors 0.5.0 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 cargo-authors 0.5.0
[INFO] finished tweaking crates.io crate cargo-authors 0.5.0
[INFO] tweaked toml for crates.io crate cargo-authors 0.5.0 written to /workspace/builds/worker-8/source/Cargo.toml
[INFO] crate crates.io crate cargo-authors 0.5.0 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]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded curl v0.4.24
[INFO] [stderr]   Downloaded curl-sys v0.4.22
[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] dd7408814f5b94f529e439fdf2c3c636fb1032250d9d1e39239d01796d0fa7eb
[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" "dd7408814f5b94f529e439fdf2c3c636fb1032250d9d1e39239d01796d0fa7eb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "dd7408814f5b94f529e439fdf2c3c636fb1032250d9d1e39239d01796d0fa7eb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "dd7408814f5b94f529e439fdf2c3c636fb1032250d9d1e39239d01796d0fa7eb", kill_on_drop: false }`
[INFO] [stdout] dd7408814f5b94f529e439fdf2c3c636fb1032250d9d1e39239d01796d0fa7eb
[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] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 958a1d5b222a4f9b8890f28ebb370a2f5f47262cda6f78d20d53d6ab2a3c7550
[INFO] running `Command { std: "docker" "start" "-a" "958a1d5b222a4f9b8890f28ebb370a2f5f47262cda6f78d20d53d6ab2a3c7550", kill_on_drop: false }`
[INFO] [stderr]    Compiling cc v1.0.45
[INFO] [stderr]    Compiling pkg-config v0.3.16
[INFO] [stderr]    Compiling proc-macro2 v1.0.4
[INFO] [stderr]    Compiling syn v1.0.5
[INFO] [stderr]    Compiling serde v1.0.101
[INFO] [stderr]    Compiling bitflags v1.2.0
[INFO] [stderr]    Compiling getrandom v0.1.12
[INFO] [stderr]    Compiling curl v0.4.24
[INFO] [stderr]     Checking byte-tools v0.3.1
[INFO] [stderr]     Checking opaque-debug v0.2.3
[INFO] [stderr]     Checking strsim v0.9.2
[INFO] [stderr]     Checking miniz_oxide v0.3.2
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[INFO] [stderr]     Checking rand_core v0.5.1
[INFO] [stderr]     Checking clap v2.33.0
[INFO] [stderr]     Checking rand_chacha v0.2.1
[INFO] [stderr]     Checking rand v0.7.2
[INFO] [stderr]    Compiling openssl-sys v0.9.50
[INFO] [stderr]    Compiling libz-sys v1.0.25
[INFO] [stderr]    Compiling libnghttp2-sys v0.1.2
[INFO] [stderr]    Compiling curl-sys v0.4.22
[INFO] [stderr]    Compiling backtrace-sys v0.1.31
[INFO] [stderr]    Compiling libssh2-sys v0.2.12
[INFO] [stderr]    Compiling libgit2-sys v0.8.2
[INFO] [stderr]    Compiling quote v1.0.2
[INFO] [stderr]     Checking flate2 v1.0.12
[INFO] [stderr]     Checking backtrace v0.3.38
[INFO] [stderr]     Checking tempfile v3.1.0
[INFO] [stderr]    Compiling openssl v0.10.25
[INFO] [stderr]     Checking failure v0.1.5
[INFO] [stderr]    Compiling serde_derive v1.0.101
[INFO] [stderr]     Checking crypto-hash v0.3.4
[INFO] [stderr]     Checking serde_json v1.0.41
[INFO] [stderr]     Checking url_serde v0.2.0
[INFO] [stderr]     Checking toml v0.5.3
[INFO] [stderr]     Checking semver v0.9.0
[INFO] [stderr]     Checking serde_ignored v0.0.4
[INFO] [stderr]     Checking docopt v1.1.0
[INFO] [stderr]    Compiling rustc_version v0.2.3
[INFO] [stderr]     Checking rustfix v0.4.6
[INFO] [stderr]     Checking crates-io v0.27.0
[INFO] [stderr]    Compiling im-rc v13.0.0
[INFO] [stderr]     Checking git2 v0.9.2
[INFO] [stderr]     Checking git2-curl v0.10.1
[INFO] [stderr]     Checking cargo v0.39.0
[INFO] [stderr]  Documenting cargo-authors v0.5.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2m 08s
[INFO] running `Command { std: "docker" "inspect" "958a1d5b222a4f9b8890f28ebb370a2f5f47262cda6f78d20d53d6ab2a3c7550", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "958a1d5b222a4f9b8890f28ebb370a2f5f47262cda6f78d20d53d6ab2a3c7550", kill_on_drop: false }`
[INFO] [stdout] 958a1d5b222a4f9b8890f28ebb370a2f5f47262cda6f78d20d53d6ab2a3c7550