[INFO] fetching crate mioco 0.8.1...
[INFO] documenting mioco-0.8.1 against beta-2020-08-29 for beta-1.47-rustdoc-1
[INFO] extracting crate mioco 0.8.1 into /workspace/builds/worker-4/source
[INFO] validating manifest of crates.io crate mioco 0.8.1 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 mioco 0.8.1
[INFO] finished tweaking crates.io crate mioco 0.8.1
[INFO] tweaked toml for crates.io crate mioco 0.8.1 written to /workspace/builds/worker-4/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 clippy v0.0.85
[INFO] [stderr]   Downloaded clippy_lints v0.0.85
[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] 0f3184b8ca4e813167bc3f0dd82ee0de8f541523353c60de8fe2b604505df01f
[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" "0f3184b8ca4e813167bc3f0dd82ee0de8f541523353c60de8fe2b604505df01f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "0f3184b8ca4e813167bc3f0dd82ee0de8f541523353c60de8fe2b604505df01f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0f3184b8ca4e813167bc3f0dd82ee0de8f541523353c60de8fe2b604505df01f", kill_on_drop: false }`
[INFO] [stdout] 0f3184b8ca4e813167bc3f0dd82ee0de8f541523353c60de8fe2b604505df01f
[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] [stdout] c834729e290f11a18160669f5bde2ab812243d247cf6ac92134d0d2a665d6dce
[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" "c834729e290f11a18160669f5bde2ab812243d247cf6ac92134d0d2a665d6dce", kill_on_drop: false }`
[INFO] [stderr]     Checking bytes v0.3.0
[INFO] [stderr]     Checking slab v0.1.3
[INFO] [stderr]     Checking slab v0.2.0
[INFO] [stderr]     Checking thread-scoped v1.0.2
[INFO] [stderr]     Checking spin v0.4.10
[INFO] [stderr]     Checking owning_ref v0.2.4
[INFO] [stderr]    Compiling context v1.0.1
[INFO] [stderr]    Compiling ws2_32-sys v0.2.1
[INFO] [stderr]     Checking nix v0.5.1
[INFO] [stderr]     Checking miow v0.1.5
[INFO] [stderr]     Checking mio v0.5.1
[INFO] [stderr]  Documenting mioco v0.8.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 8.00s
[INFO] running `Command { std: "docker" "inspect" "c834729e290f11a18160669f5bde2ab812243d247cf6ac92134d0d2a665d6dce", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c834729e290f11a18160669f5bde2ab812243d247cf6ac92134d0d2a665d6dce", kill_on_drop: false }`
[INFO] [stdout] c834729e290f11a18160669f5bde2ab812243d247cf6ac92134d0d2a665d6dce