[INFO] fetching crate block_kit 0.1.0...
[INFO] documenting block_kit-0.1.0 against beta-2020-08-29 for beta-1.47-rustdoc-1
[INFO] extracting crate block_kit 0.1.0 into /workspace/builds/worker-6/source
[INFO] validating manifest of crates.io crate block_kit 0.1.0 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 block_kit 0.1.0
[INFO] finished tweaking crates.io crate block_kit 0.1.0
[INFO] tweaked toml for crates.io crate block_kit 0.1.0 written to /workspace/builds/worker-6/source/Cargo.toml
[INFO] crate crates.io crate block_kit 0.1.0 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]  Downloading crates ...
[INFO] [stderr]   Downloaded tokio-macros v0.2.0
[INFO] [stderr]   Downloaded actix-connect v1.0.0
[INFO] [stderr]   Downloaded awc v1.0.0-alpha.4
[INFO] [stderr]   Downloaded actix_derive v0.4.0
[INFO] [stderr]   Downloaded hashbrown v0.3.1
[INFO] [stderr]   Downloaded actix-web-codegen v0.2.0-alpha.2
[INFO] [stderr]   Downloaded actix v0.8.3
[INFO] [stderr]   Downloaded tokio-openssl v0.4.0
[INFO] [stderr]   Downloaded bytestring v0.1.1
[INFO] [stderr]   Downloaded actix-router v0.2.0
[INFO] [stderr]   Downloaded actix-utils v1.0.3
[INFO] [stderr]   Downloaded actix-service v1.0.0
[INFO] [stderr]   Downloaded actix-macros v0.1.0
[INFO] [stderr]   Downloaded actix-http v1.0.0-alpha.6
[INFO] [stderr]   Downloaded actix-web v2.0.0-alpha.4
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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] e074f87c91ccd211630e49c54866a2e43aaae56f8c5c65cab9f26828c373b49a
[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" "e074f87c91ccd211630e49c54866a2e43aaae56f8c5c65cab9f26828c373b49a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "e074f87c91ccd211630e49c54866a2e43aaae56f8c5c65cab9f26828c373b49a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e074f87c91ccd211630e49c54866a2e43aaae56f8c5c65cab9f26828c373b49a", kill_on_drop: false }`
[INFO] [stdout] e074f87c91ccd211630e49c54866a2e43aaae56f8c5c65cab9f26828c373b49a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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] 9a86d91c3d6374ecb7142e00aa131e9383b88e7f0c01653c496ca39c16ee61df
[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" "9a86d91c3d6374ecb7142e00aa131e9383b88e7f0c01653c496ca39c16ee61df", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.6
[INFO] [stderr]    Compiling syn v1.0.11
[INFO] [stderr]    Compiling serde v1.0.103
[INFO] [stderr]    Compiling quote v1.0.2
[INFO] [stderr]    Compiling serde_derive v1.0.103
[INFO] [stderr]  Documenting block_kit v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 39.60s
[INFO] running `Command { std: "docker" "inspect" "9a86d91c3d6374ecb7142e00aa131e9383b88e7f0c01653c496ca39c16ee61df", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9a86d91c3d6374ecb7142e00aa131e9383b88e7f0c01653c496ca39c16ee61df", kill_on_drop: false }`
[INFO] [stdout] 9a86d91c3d6374ecb7142e00aa131e9383b88e7f0c01653c496ca39c16ee61df