[INFO] fetching crate semantic-release-rust 1.0.0-alpha.5...
[INFO] documenting semantic-release-rust-1.0.0-alpha.5 against beta-2020-08-29 for beta-1.47-rustdoc-1
[INFO] extracting crate semantic-release-rust 1.0.0-alpha.5 into /workspace/builds/worker-14/source
[INFO] validating manifest of crates.io crate semantic-release-rust 1.0.0-alpha.5 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 semantic-release-rust 1.0.0-alpha.5
[INFO] finished tweaking crates.io crate semantic-release-rust 1.0.0-alpha.5
[INFO] tweaked toml for crates.io crate semantic-release-rust 1.0.0-alpha.5 written to /workspace/builds/worker-14/source/Cargo.toml
[INFO] crate crates.io crate semantic-release-rust 1.0.0-alpha.5 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 target-spec v0.4.0
[INFO] [stderr]   Downloaded guppy v0.5.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/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] b1469a824fafc8b1e31b1faf42d2820290c96ffaf1f889f887fa98c62f7ee14b
[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" "b1469a824fafc8b1e31b1faf42d2820290c96ffaf1f889f887fa98c62f7ee14b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "b1469a824fafc8b1e31b1faf42d2820290c96ffaf1f889f887fa98c62f7ee14b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b1469a824fafc8b1e31b1faf42d2820290c96ffaf1f889f887fa98c62f7ee14b", kill_on_drop: false }`
[INFO] [stdout] b1469a824fafc8b1e31b1faf42d2820290c96ffaf1f889f887fa98c62f7ee14b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/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] 35507474a3ca4db901b38b2203fbc5c175f17b46bd59c9b13ff2e15ec6874142
[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" "35507474a3ca4db901b38b2203fbc5c175f17b46bd59c9b13ff2e15ec6874142", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v1.0.33
[INFO] [stderr]     Checking adler v0.2.2
[INFO] [stderr]    Compiling target-spec v0.4.0
[INFO] [stderr]     Checking supercow v0.1.0
[INFO] [stderr]     Checking nested v0.1.1
[INFO] [stderr]     Checking pathdiff v0.2.0
[INFO] [stderr]     Checking cfg-expr v0.4.1
[INFO] [stderr]     Checking itertools v0.9.0
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking combine v3.8.1
[INFO] [stderr]     Checking petgraph v0.5.1
[INFO] [stderr]     Checking rand v0.7.3
[INFO] [stderr]     Checking miniz_oxide v0.4.0
[INFO] [stderr]     Checking clap v2.33.1
[INFO] [stderr]     Checking loggerv v0.7.2
[INFO] [stderr]     Checking backtrace v0.3.50
[INFO] [stderr]     Checking uuid v0.8.1
[INFO] [stderr]    Compiling syn-mid v0.5.0
[INFO] [stderr]    Compiling serde_derive v1.0.114
[INFO] [stderr]    Compiling proc-macro-error-attr v1.0.3
[INFO] [stderr]    Compiling thiserror-impl v1.0.20
[INFO] [stderr]     Checking toml_edit v0.2.0
[INFO] [stderr]    Compiling proc-macro-error v1.0.3
[INFO] [stderr]    Compiling structopt-derive v0.4.8
[INFO] [stderr]     Checking thiserror v1.0.20
[INFO] [stderr]     Checking structopt v0.3.15
[INFO] [stderr]     Checking serde v1.0.114
[INFO] [stderr]     Checking serde_json v1.0.57
[INFO] [stderr]     Checking semver v0.9.0
[INFO] [stderr]     Checking toml v0.5.6
[INFO] [stderr]     Checking url v2.1.1
[INFO] [stderr]     Checking human-panic v1.0.3
[INFO] [stderr]     Checking cargo_metadata v0.10.0
[INFO] [stderr]     Checking guppy v0.5.0
[INFO] [stderr]  Documenting semantic-release-rust v1.0.0-alpha.5 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 55.22s
[INFO] running `Command { std: "docker" "inspect" "35507474a3ca4db901b38b2203fbc5c175f17b46bd59c9b13ff2e15ec6874142", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "35507474a3ca4db901b38b2203fbc5c175f17b46bd59c9b13ff2e15ec6874142", kill_on_drop: false }`
[INFO] [stdout] 35507474a3ca4db901b38b2203fbc5c175f17b46bd59c9b13ff2e15ec6874142