[INFO] fetching crate nu_plugin_post 0.18.1...
[INFO] documenting nu_plugin_post-0.18.1 against beta-2020-08-29 for beta-1.47-rustdoc-1
[INFO] extracting crate nu_plugin_post 0.18.1 into /workspace/builds/worker-3/source
[INFO] validating manifest of crates.io crate nu_plugin_post 0.18.1 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 nu_plugin_post 0.18.1
[INFO] finished tweaking crates.io crate nu_plugin_post 0.18.1
[INFO] tweaked toml for crates.io crate nu_plugin_post 0.18.1 written to /workspace/builds/worker-3/source/Cargo.toml
[INFO] crate crates.io crate nu_plugin_post 0.18.1 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 libnghttp2-sys v0.1.4+1.41.0
[INFO] [stderr]   Downloaded curl-sys v0.4.34+curl-7.71.1
[INFO] [stderr]   Downloaded curl v0.4.31
[INFO] [stderr]   Downloaded sluice v0.4.2
[INFO] [stderr]   Downloaded futures-executor-preview v0.3.0-alpha.19
[INFO] [stderr]   Downloaded futures-channel-preview v0.3.0-alpha.19
[INFO] [stderr]   Downloaded wasm-bindgen-futures v0.3.27
[INFO] [stderr]   Downloaded futures-preview v0.3.0-alpha.19
[INFO] [stderr]   Downloaded futures-util-preview v0.3.0-alpha.19
[INFO] [stderr]   Downloaded surf v1.0.3
[INFO] [stderr]   Downloaded futures-io-preview v0.3.0-alpha.19
[INFO] [stderr]   Downloaded isahc v0.7.6
[INFO] [stderr]   Downloaded futures-core-preview v0.3.0-alpha.19
[INFO] [stderr]   Downloaded futures-sink-preview v0.3.0-alpha.19
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 84d6aad3ab099b9c119ff3f100785c3d5347d9027c50b7948698680bfbedd11b
[INFO] running `Command { std: "docker" "start" "-a" "84d6aad3ab099b9c119ff3f100785c3d5347d9027c50b7948698680bfbedd11b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "84d6aad3ab099b9c119ff3f100785c3d5347d9027c50b7948698680bfbedd11b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "84d6aad3ab099b9c119ff3f100785c3d5347d9027c50b7948698680bfbedd11b", kill_on_drop: false }`
[INFO] [stdout] 84d6aad3ab099b9c119ff3f100785c3d5347d9027c50b7948698680bfbedd11b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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] 1efc2acbb099d362440e1abbc530a5b4db6a86ef96b7b487a89ade6eacd04eaf
[INFO] running `Command { std: "docker" "start" "-a" "1efc2acbb099d362440e1abbc530a5b4db6a86ef96b7b487a89ade6eacd04eaf", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v1.0.38
[INFO] [stderr]    Compiling serde v1.0.115
[INFO] [stderr]    Compiling cc v1.0.58
[INFO] [stderr]    Compiling log v0.4.11
[INFO] [stderr]    Compiling inventory v0.1.8
[INFO] [stderr]     Checking futures-core-preview v0.3.0-alpha.19
[INFO] [stderr]     Checking futures-io-preview v0.3.0-alpha.19
[INFO] [stderr]    Compiling curl v0.4.31
[INFO] [stderr]     Checking byte-unit v3.1.4
[INFO] [stderr]    Compiling isahc v0.7.6
[INFO] [stderr]    Compiling num-integer v0.1.43
[INFO] [stderr]    Compiling hashbrown v0.8.2
[INFO] [stderr]    Compiling indexmap v1.5.1
[INFO] [stderr]     Checking yaml-rust v0.4.4
[INFO] [stderr]     Checking parking_lot_core v0.8.0
[INFO] [stderr]     Checking socket2 v0.3.12
[INFO] [stderr]     Checking bytes v0.4.12
[INFO] [stderr]     Checking dirs v2.0.2
[INFO] [stderr]     Checking futures-channel-preview v0.3.0-alpha.19
[INFO] [stderr]     Checking shellexpand v2.0.0
[INFO] [stderr]     Checking parking_lot v0.11.0
[INFO] [stderr]     Checking http v0.1.21
[INFO] [stderr]     Checking tokio-io v0.1.13
[INFO] [stderr]     Checking sluice v0.4.2
[INFO] [stderr]     Checking futures-util-preview v0.3.0-alpha.19
[INFO] [stderr]    Compiling libz-sys v1.0.25
[INFO] [stderr]    Compiling libnghttp2-sys v0.1.4+1.41.0
[INFO] [stderr]    Compiling openssl-sys v0.9.58
[INFO] [stderr]    Compiling curl-sys v0.4.34+curl-7.71.1
[INFO] [stderr]     Checking futures-executor-preview v0.3.0-alpha.19
[INFO] [stderr]     Checking futures-preview v0.3.0-alpha.19
[INFO] [stderr]    Compiling proc-macro-error v1.0.4
[INFO] [stderr]    Compiling serde_derive v1.0.115
[INFO] [stderr]    Compiling derive-new v0.5.8
[INFO] [stderr]    Compiling ctor v0.1.15
[INFO] [stderr]    Compiling ghost v0.1.2
[INFO] [stderr]    Compiling getset v0.1.1
[INFO] [stderr]    Compiling inventory-impl v0.1.8
[INFO] [stderr]    Compiling typetag-impl v0.1.5
[INFO] [stderr]    Compiling pin-project-internal v0.4.23
[INFO] [stderr]    Compiling futures-macro v0.3.5
[INFO] [stderr]     Checking pin-project v0.4.23
[INFO] [stderr]     Checking futures-util v0.3.5
[INFO] [stderr]     Checking futures-executor v0.3.5
[INFO] [stderr]     Checking futures v0.3.5
[INFO] [stderr]     Checking codespan-reporting v0.9.5
[INFO] [stderr]     Checking serde_json v1.0.57
[INFO] [stderr]     Checking num-bigint v0.2.6
[INFO] [stderr]     Checking rust-stemmers v1.2.0
[INFO] [stderr]     Checking erased-serde v0.3.12
[INFO] [stderr]     Checking serde_yaml v0.8.13
[INFO] [stderr]     Checking toml v0.5.6
[INFO] [stderr]     Checking serde_bytes v0.11.5
[INFO] [stderr]     Checking chrono v0.4.13
[INFO] [stderr]     Checking serde_urlencoded v0.6.1
[INFO] [stderr]     Checking nu-source v0.18.1
[INFO] [stderr]     Checking typetag v0.1.5
[INFO] [stderr]     Checking bigdecimal v0.1.2
[INFO] [stderr]     Checking surf v1.0.3
[INFO] [stderr]     Checking nu-errors v0.18.1
[INFO] [stderr]     Checking natural v0.5.0
[INFO] [stderr]     Checking nu-protocol v0.18.1
[INFO] [stderr]     Checking nu-parser v0.18.1
[INFO] [stderr]     Checking nu-value-ext v0.18.1
[INFO] [stderr]     Checking nu-plugin v0.18.1
[INFO] [stderr]  Documenting nu_plugin_post v0.18.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1m 48s
[INFO] running `Command { std: "docker" "inspect" "1efc2acbb099d362440e1abbc530a5b4db6a86ef96b7b487a89ade6eacd04eaf", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1efc2acbb099d362440e1abbc530a5b4db6a86ef96b7b487a89ade6eacd04eaf", kill_on_drop: false }`
[INFO] [stdout] 1efc2acbb099d362440e1abbc530a5b4db6a86ef96b7b487a89ade6eacd04eaf