[INFO] fetching crate rate-proof-utils 0.3.0...
[INFO] documenting rate-proof-utils-0.3.0 against beta-2020-08-29 for beta-1.47-rustdoc-1
[INFO] extracting crate rate-proof-utils 0.3.0 into /workspace/builds/worker-1/source
[INFO] validating manifest of crates.io crate rate-proof-utils 0.3.0 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 rate-proof-utils 0.3.0
[INFO] finished tweaking crates.io crate rate-proof-utils 0.3.0
[INFO] tweaked toml for crates.io crate rate-proof-utils 0.3.0 written to /workspace/builds/worker-1/source/Cargo.toml
[INFO] crate crates.io crate rate-proof-utils 0.3.0 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] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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] 379428518a2e928881227880cd2dfc0177e3e76f20ac64553283a5a969646bed
[INFO] running `Command { std: "docker" "start" "-a" "379428518a2e928881227880cd2dfc0177e3e76f20ac64553283a5a969646bed", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "379428518a2e928881227880cd2dfc0177e3e76f20ac64553283a5a969646bed", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "379428518a2e928881227880cd2dfc0177e3e76f20ac64553283a5a969646bed", kill_on_drop: false }`
[INFO] [stdout] 379428518a2e928881227880cd2dfc0177e3e76f20ac64553283a5a969646bed
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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] f9273f452d2ecbf7612907e4c0c81ec43f5c2b481682e3fd19df674524f7f979
[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" "f9273f452d2ecbf7612907e4c0c81ec43f5c2b481682e3fd19df674524f7f979", kill_on_drop: false }`
[INFO] [stderr]    Compiling same-file v1.0.5
[INFO] [stderr]    Compiling remove_dir_all v0.5.2
[INFO] [stderr]     Checking scopeguard v1.0.0
[INFO] [stderr]    Compiling error-chain v0.12.1
[INFO] [stderr]    Compiling jobserver v0.1.17
[INFO] [stderr]    Compiling rand v0.4.6
[INFO] [stderr]    Compiling serde v1.0.104
[INFO] [stderr]     Checking toml v0.5.5
[INFO] [stderr]     Checking flate2 v1.0.13
[INFO] [stderr]    Compiling serde_derive v1.0.104
[INFO] [stderr]    Compiling rate-macros v0.3.0
[INFO] [stderr]    Compiling derive_more v0.99.2
[INFO] [stderr]    Compiling walkdir v2.2.9
[INFO] [stderr]    Compiling cc v1.0.48
[INFO] [stderr]    Compiling tempdir v0.3.7
[INFO] [stderr]    Compiling backtrace-sys v0.1.32
[INFO] [stderr]    Compiling lz4-sys v1.8.3
[INFO] [stderr]    Compiling zstd-sys v1.4.15+zstd.1.4.4
[INFO] [stderr]    Compiling lzma-sys v0.1.15
[INFO] [stderr]    Compiling bzip2-sys v0.1.7
[INFO] [stderr]     Checking bzip2 v0.3.3
[INFO] [stderr]     Checking xz2 v0.1.6
[INFO] [stderr]    Compiling backtrace v0.3.40
[INFO] [stderr]    Compiling semver v0.9.0
[INFO] [stderr]    Compiling serde_json v1.0.44
[INFO] [stderr]    Compiling cargo_metadata v0.6.4
[INFO] [stderr]    Compiling skeptic v0.13.4
[INFO] [stderr]    Compiling lz4 v1.23.1
[INFO] [stderr]     Checking zstd-safe v2.0.3+zstd.1.4.4
[INFO] [stderr]     Checking zstd v0.5.1+zstd.1.4.4
[INFO] [stderr]     Checking rate-common v0.3.0
[INFO] [stderr]  Documenting rate-proof-utils v0.3.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2m 10s
[INFO] running `Command { std: "docker" "inspect" "f9273f452d2ecbf7612907e4c0c81ec43f5c2b481682e3fd19df674524f7f979", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f9273f452d2ecbf7612907e4c0c81ec43f5c2b481682e3fd19df674524f7f979", kill_on_drop: false }`
[INFO] [stdout] f9273f452d2ecbf7612907e4c0c81ec43f5c2b481682e3fd19df674524f7f979