[INFO] fetching crate an-rope 0.3.1...
[INFO] documenting an-rope-0.3.1 against beta-2020-08-29 for beta-1.47-rustdoc-1
[INFO] extracting crate an-rope 0.3.1 into /workspace/builds/worker-2/source
[INFO] validating manifest of crates.io crate an-rope 0.3.1 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 an-rope 0.3.1
[INFO] finished tweaking crates.io crate an-rope 0.3.1
[INFO] tweaked toml for crates.io crate an-rope 0.3.1 written to /workspace/builds/worker-2/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2020-08-29" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[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 quickcheck v0.3.2
[INFO] [stderr]   Downloaded tendril v0.2.4
[INFO] [stderr]   Downloaded macro-attr v0.2.0
[INFO] [stderr]   Downloaded clippy_lints v0.0.106
[INFO] [stderr]   Downloaded utf-8 v0.6.0
[INFO] [stderr]   Downloaded clippy v0.0.106
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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] 4042b64099c75448a41a145814dd1169829e56d5aaa0612718491e0a57e04d68
[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" "4042b64099c75448a41a145814dd1169829e56d5aaa0612718491e0a57e04d68", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "4042b64099c75448a41a145814dd1169829e56d5aaa0612718491e0a57e04d68", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4042b64099c75448a41a145814dd1169829e56d5aaa0612718491e0a57e04d68", kill_on_drop: false }`
[INFO] [stdout] 4042b64099c75448a41a145814dd1169829e56d5aaa0612718491e0a57e04d68
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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] 094ed82456cc9ed61e3a1d769622bbf646d08154c7e3d7e1b0869cf115f6d854
[INFO] running `Command { std: "docker" "start" "-a" "094ed82456cc9ed61e3a1d769622bbf646d08154c7e3d7e1b0869cf115f6d854", kill_on_drop: false }`
[INFO] [stderr]    Compiling semver v0.1.20
[INFO] [stderr]     Checking macro-attr v0.2.0
[INFO] [stderr]    Compiling rustc_version v0.1.7
[INFO] [stderr]    Compiling newtype_derive v0.1.6
[INFO] [stderr]  Documenting an-rope v0.3.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 3.84s
[INFO] running `Command { std: "docker" "inspect" "094ed82456cc9ed61e3a1d769622bbf646d08154c7e3d7e1b0869cf115f6d854", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "094ed82456cc9ed61e3a1d769622bbf646d08154c7e3d7e1b0869cf115f6d854", kill_on_drop: false }`
[INFO] [stdout] 094ed82456cc9ed61e3a1d769622bbf646d08154c7e3d7e1b0869cf115f6d854