[INFO] fetching crate twist-lz4 0.3.1...
[INFO] documenting twist-lz4-0.3.1 against beta-2020-10-09 for beta-1.48-rustdoc-1
[INFO] extracting crate twist-lz4 0.3.1 into /workspace/builds/worker-8/source
[INFO] validating manifest of crates.io crate twist-lz4 0.3.1 on toolchain beta-2020-10-09
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2020-10-09" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate twist-lz4 0.3.1
[INFO] finished tweaking crates.io crate twist-lz4 0.3.1
[INFO] tweaked toml for crates.io crate twist-lz4 0.3.1 written to /workspace/builds/worker-8/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2020-10-09" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2020-10-09" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded crossbeam v0.2.12
[INFO] [stderr]   Downloaded slog-stream v1.2.1
[INFO] [stderr]   Downloaded smallvec v0.2.1
[INFO] [stderr]   Downloaded tokio-proto v0.1.1
[INFO] [stderr]   Downloaded base64 v0.4.2
[INFO] [stderr]   Downloaded chrono v0.2.25
[INFO] [stderr]   Downloaded sha1 v0.2.0
[INFO] [stderr]   Downloaded slog v1.7.1
[INFO] [stderr]   Downloaded take v0.1.0
[INFO] [stderr]   Downloaded lz4-compress v0.1.1
[INFO] [stderr]   Downloaded slog-extra v0.1.2
[INFO] [stderr]   Downloaded isatty v0.1.9
[INFO] [stderr]   Downloaded slog-term v1.5.0
[INFO] [stderr]   Downloaded slog-atomic v0.4.3
[INFO] [stderr]   Downloaded vatfluid v0.3.0
[INFO] [stderr]   Downloaded uuid v0.4.0
[INFO] [stderr]   Downloaded slab v0.3.0
[INFO] [stderr]   Downloaded error-chain v0.10.0
[INFO] [stderr]   Downloaded twist v0.7.1
[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-2020-10-09" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 5f16e47b2a432889f61f0e11521492aa59dd322cd9b032778cb0d09b2d04ce73
[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" "5f16e47b2a432889f61f0e11521492aa59dd322cd9b032778cb0d09b2d04ce73", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "5f16e47b2a432889f61f0e11521492aa59dd322cd9b032778cb0d09b2d04ce73", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5f16e47b2a432889f61f0e11521492aa59dd322cd9b032778cb0d09b2d04ce73", kill_on_drop: false }`
[INFO] [stdout] 5f16e47b2a432889f61f0e11521492aa59dd322cd9b032778cb0d09b2d04ce73
[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-2020-10-09" "doc" "--frozen" "--no-deps" "--document-private-items" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 4d09b9c0562732f45c770dfe05bcb13c9a8310c25215d7cc3bb94a5c7fda33f4
[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" "4d09b9c0562732f45c770dfe05bcb13c9a8310c25215d7cc3bb94a5c7fda33f4", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Checking slog v1.7.1
[INFO] [stderr]     Checking take v0.1.0
[INFO] [stderr]     Checking crossbeam v0.2.12
[INFO] [stderr]     Checking smallvec v0.2.1
[INFO] [stderr]     Checking sha1 v0.2.0
[INFO] [stderr]     Checking lz4-compress v0.1.1
[INFO] [stderr]     Checking isatty v0.1.9
[INFO] [stderr]     Checking error-chain v0.10.0
[INFO] [stderr]     Checking uuid v0.4.0
[INFO] [stderr]     Checking base64 v0.4.2
[INFO] [stderr]     Checking tokio-io v0.1.13
[INFO] [stderr]     Checking chrono v0.2.25
[INFO] [stderr]     Checking slog-extra v0.1.2
[INFO] [stderr]     Checking vatfluid v0.3.0
[INFO] [stderr]     Checking slog-stream v1.2.1
[INFO] [stderr]     Checking slog-atomic v0.4.3
[INFO] [stderr]     Checking tokio-reactor v0.1.12
[INFO] [stderr]     Checking tokio-codec v0.1.2
[INFO] [stderr]     Checking tokio-fs v0.1.7
[INFO] [stderr]     Checking tokio-uds v0.2.7
[INFO] [stderr]     Checking tokio-tcp v0.1.4
[INFO] [stderr]     Checking tokio-udp v0.1.6
[INFO] [stderr]     Checking slog-term v1.5.0
[INFO] [stderr]     Checking tokio v0.1.22
[INFO] [stderr]     Checking tokio-core v0.1.17
[INFO] [stderr]     Checking tokio-proto v0.1.1
[INFO] [stderr]     Checking twist v0.7.1
[INFO] [stderr]  Documenting twist-lz4 v0.3.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 9.43s
[INFO] running `Command { std: "docker" "inspect" "4d09b9c0562732f45c770dfe05bcb13c9a8310c25215d7cc3bb94a5c7fda33f4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4d09b9c0562732f45c770dfe05bcb13c9a8310c25215d7cc3bb94a5c7fda33f4", kill_on_drop: false }`
[INFO] [stdout] 4d09b9c0562732f45c770dfe05bcb13c9a8310c25215d7cc3bb94a5c7fda33f4
