[INFO] fetching crate graphlib 0.6.2...
[INFO] documenting graphlib-0.6.2 against beta-2020-08-29 for beta-1.47-rustdoc-1
[INFO] extracting crate graphlib 0.6.2 into /workspace/builds/worker-4/source
[INFO] validating manifest of crates.io crate graphlib 0.6.2 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 graphlib 0.6.2
[INFO] finished tweaking crates.io crate graphlib 0.6.2
[INFO] tweaked toml for crates.io crate graphlib 0.6.2 written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] crate crates.io crate graphlib 0.6.2 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 csv-core v0.1.10
[INFO] [stderr]   Downloaded wasm-bindgen-shared v0.2.60
[INFO] [stderr]   Downloaded memoffset v0.5.4
[INFO] [stderr]   Downloaded proc-macro2 v1.0.10
[INFO] [stderr]   Downloaded bumpalo v3.2.1
[INFO] [stderr]   Downloaded wasm-bindgen-backend v0.2.60
[INFO] [stderr]   Downloaded serde_json v1.0.51
[INFO] [stderr]   Downloaded winapi-util v0.1.4
[INFO] [stderr]   Downloaded wasm-bindgen-macro v0.2.60
[INFO] [stderr]   Downloaded wasm-bindgen v0.2.60
[INFO] [stderr]   Downloaded hashbrown v0.6.3
[INFO] [stderr]   Downloaded web-sys v0.3.37
[INFO] [stderr]   Downloaded cast v0.2.3
[INFO] [stderr]   Downloaded wasm-bindgen-macro-support v0.2.60
[INFO] [stderr]   Downloaded hermit-abi v0.1.10
[INFO] [stderr]   Downloaded regex v1.3.6
[INFO] [stderr]   Downloaded js-sys v0.3.37
[INFO] [stderr]   Downloaded rand_isaac v0.2.0
[INFO] [stderr]   Downloaded syn v1.0.17
[INFO] [stderr]   Downloaded ahash v0.2.18
[INFO] [stderr]   Downloaded dot v0.1.4
[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] [stdout] 3fa3ba31e58206952f1745337ccc5c7013646ce52c9f52850411a0efa1d9994b
[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" "3fa3ba31e58206952f1745337ccc5c7013646ce52c9f52850411a0efa1d9994b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "3fa3ba31e58206952f1745337ccc5c7013646ce52c9f52850411a0efa1d9994b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3fa3ba31e58206952f1745337ccc5c7013646ce52c9f52850411a0efa1d9994b", kill_on_drop: false }`
[INFO] [stdout] 3fa3ba31e58206952f1745337ccc5c7013646ce52c9f52850411a0efa1d9994b
[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] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 1a2ae025b62905b1578e063240aa76137a145d30d4f5350eb8df4dfdf5f8791e
[INFO] running `Command { std: "docker" "start" "-a" "1a2ae025b62905b1578e063240aa76137a145d30d4f5350eb8df4dfdf5f8791e", kill_on_drop: false }`
[INFO] [stderr]     Checking rand_core v0.5.1
[INFO] [stderr]     Checking ppv-lite86 v0.2.6
[INFO] [stderr]     Checking ahash v0.2.18
[INFO] [stderr]     Checking hex v0.4.2
[INFO] [stderr]    Compiling hashbrown v0.6.3
[INFO] [stderr]     Checking rand_isaac v0.2.0
[INFO] [stderr]     Checking rand_chacha v0.2.2
[INFO] [stderr]     Checking rand v0.7.3
[INFO] [stderr]  Documenting graphlib v0.6.2 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 5.81s
[INFO] running `Command { std: "docker" "inspect" "1a2ae025b62905b1578e063240aa76137a145d30d4f5350eb8df4dfdf5f8791e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1a2ae025b62905b1578e063240aa76137a145d30d4f5350eb8df4dfdf5f8791e", kill_on_drop: false }`
[INFO] [stdout] 1a2ae025b62905b1578e063240aa76137a145d30d4f5350eb8df4dfdf5f8791e