[INFO] fetching crate nvml-wrapper 0.6.0...
[INFO] documenting nvml-wrapper-0.6.0 against beta-2020-08-29 for beta-1.47-rustdoc-1
[INFO] extracting crate nvml-wrapper 0.6.0 into /workspace/builds/worker-8/source
[INFO] validating manifest of crates.io crate nvml-wrapper 0.6.0 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 nvml-wrapper 0.6.0
[INFO] finished tweaking crates.io crate nvml-wrapper 0.6.0
[INFO] tweaked toml for crates.io crate nvml-wrapper 0.6.0 written to /workspace/builds/worker-8/source/Cargo.toml
[INFO] crate crates.io crate nvml-wrapper 0.6.0 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 hermit-abi v0.1.14
[INFO] [stderr]   Downloaded darling_macro v0.10.2
[INFO] [stderr]   Downloaded darling v0.10.2
[INFO] [stderr]   Downloaded serde v1.0.112
[INFO] [stderr]   Downloaded indexmap v1.4.0
[INFO] [stderr]   Downloaded getopts v0.2.21
[INFO] [stderr]   Downloaded envmnt v0.8.2
[INFO] [stderr]   Downloaded darling_core v0.10.2
[INFO] [stderr]   Downloaded nias v0.5.0
[INFO] [stderr]   Downloaded fsio v0.1.2
[INFO] [stderr]   Downloaded syn v1.0.31
[INFO] [stderr]   Downloaded nvml-wrapper-sys v0.4.1
[INFO] [stderr]   Downloaded rusty-hook v0.11.1
[INFO] [stderr]   Downloaded ident_case v1.0.1
[INFO] [stderr]   Downloaded wrapcenum-derive v0.4.0
[INFO] [stderr]   Downloaded serde_derive v1.0.112
[INFO] [stderr]   Downloaded pretty-bytes v0.2.2
[INFO] [stderr]   Downloaded ci_info v0.10.1
[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-2020-08-29" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 0f75ecbc0ee7e82c1c4c7afb1463d8bfce8313527692556c16c2cbad5362cf36
[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" "0f75ecbc0ee7e82c1c4c7afb1463d8bfce8313527692556c16c2cbad5362cf36", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "0f75ecbc0ee7e82c1c4c7afb1463d8bfce8313527692556c16c2cbad5362cf36", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0f75ecbc0ee7e82c1c4c7afb1463d8bfce8313527692556c16c2cbad5362cf36", kill_on_drop: false }`
[INFO] [stdout] 0f75ecbc0ee7e82c1c4c7afb1463d8bfce8313527692556c16c2cbad5362cf36
[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-2020-08-29" "doc" "--frozen" "--no-deps" "--document-private-items" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 87bc82f8c88bddca8764aa03b02279f2fe3f6fde4a592c545ac26c6e801b153e
[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" "87bc82f8c88bddca8764aa03b02279f2fe3f6fde4a592c545ac26c6e801b153e", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v1.0.31
[INFO] [stderr]    Compiling strsim v0.9.3
[INFO] [stderr]    Compiling nvml-wrapper-sys v0.4.1
[INFO] [stderr]    Compiling darling_core v0.10.2
[INFO] [stderr]    Compiling thiserror-impl v1.0.20
[INFO] [stderr]    Compiling darling_macro v0.10.2
[INFO] [stderr]     Checking thiserror v1.0.20
[INFO] [stderr]    Compiling darling v0.10.2
[INFO] [stderr]    Compiling wrapcenum-derive v0.4.0
[INFO] [stderr]  Documenting nvml-wrapper v0.6.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 28.81s
[INFO] running `Command { std: "docker" "inspect" "87bc82f8c88bddca8764aa03b02279f2fe3f6fde4a592c545ac26c6e801b153e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "87bc82f8c88bddca8764aa03b02279f2fe3f6fde4a592c545ac26c6e801b153e", kill_on_drop: false }`
[INFO] [stdout] 87bc82f8c88bddca8764aa03b02279f2fe3f6fde4a592c545ac26c6e801b153e