[INFO] fetching crate pkgar 0.1.6...
[INFO] documenting pkgar-0.1.6 against beta-2020-08-29 for beta-1.47-rustdoc-1
[INFO] extracting crate pkgar 0.1.6 into /workspace/builds/worker-4/source
[INFO] validating manifest of crates.io crate pkgar 0.1.6 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 pkgar 0.1.6
[INFO] finished tweaking crates.io crate pkgar 0.1.6
[INFO] tweaked toml for crates.io crate pkgar 0.1.6 written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] crate crates.io crate pkgar 0.1.6 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 index-fixed v0.3.0
[INFO] [stderr]   Downloaded blake3 v0.2.2
[INFO] [stderr]   Downloaded sodalite v0.3.0
[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-2020-08-29" "metadata" "--no-deps" "--format-version=1", 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] 5c8bc468056cd115f57e4027fc40922e3d51ccabf28dfcef4ad878329b767437
[INFO] running `Command { std: "docker" "start" "-a" "5c8bc468056cd115f57e4027fc40922e3d51ccabf28dfcef4ad878329b767437", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "5c8bc468056cd115f57e4027fc40922e3d51ccabf28dfcef4ad878329b767437", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5c8bc468056cd115f57e4027fc40922e3d51ccabf28dfcef4ad878329b767437", kill_on_drop: false }`
[INFO] [stdout] 5c8bc468056cd115f57e4027fc40922e3d51ccabf28dfcef4ad878329b767437
[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-2020-08-29" "doc" "--frozen" "--no-deps" "--document-private-items" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] f686ef09d253fd6dbf5b826f9feeecf7ca8e5e4d6a34204b841a91caeb71368b
[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" "f686ef09d253fd6dbf5b826f9feeecf7ca8e5e4d6a34204b841a91caeb71368b", kill_on_drop: false }`
[INFO] [stderr]     Checking index-fixed v0.3.0
[INFO] [stderr]    Compiling blake3 v0.2.2
[INFO] [stderr]     Checking num_cpus v1.12.0
[INFO] [stderr]     Checking digest v0.8.1
[INFO] [stderr]     Checking crypto-mac v0.7.0
[INFO] [stderr]     Checking clap v2.33.0
[INFO] [stderr]     Checking rand_chacha v0.2.2
[INFO] [stderr]     Checking crossbeam-epoch v0.8.2
[INFO] [stderr]     Checking sodalite v0.3.0
[INFO] [stderr]     Checking crossbeam-deque v0.7.3
[INFO] [stderr]     Checking rand v0.7.3
[INFO] [stderr]     Checking rayon-core v1.7.0
[INFO] [stderr]     Checking rayon v1.3.0
[INFO] [stderr]  Documenting pkgar v0.1.6 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 12.85s
[INFO] running `Command { std: "docker" "inspect" "f686ef09d253fd6dbf5b826f9feeecf7ca8e5e4d6a34204b841a91caeb71368b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f686ef09d253fd6dbf5b826f9feeecf7ca8e5e4d6a34204b841a91caeb71368b", kill_on_drop: false }`
[INFO] [stdout] f686ef09d253fd6dbf5b826f9feeecf7ca8e5e4d6a34204b841a91caeb71368b