[INFO] cloning repository https://github.com/olegnn/union
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/olegnn/union" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Folegnn%2Funion", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Folegnn%2Funion'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] b8ac7386e99b72ad20878df734d675e5cb3af8a1
[INFO] documenting olegnn/union against 1.61.0 for beta-1.62-rustdoc-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Folegnn%2Funion" "/workspace/builds/worker-24/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-24/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/olegnn/union on toolchain 1.61.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.61.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/olegnn/union
[INFO] finished tweaking git repo https://github.com/olegnn/union
[INFO] tweaked toml for git repo https://github.com/olegnn/union written to /workspace/builds/worker-24/source/Cargo.toml
[INFO] crate git repo https://github.com/olegnn/union already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.61.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded tokio-timer v0.3.0-alpha.6
[INFO] [stderr]   Downloaded tokio-macros v0.2.0-alpha.6
[INFO] [stderr]   Downloaded synstructure v0.12.1
[INFO] [stderr]   Downloaded weedle v0.10.0
[INFO] [stderr]   Downloaded reqwest v0.10.0-alpha.1
[INFO] [stderr]   Downloaded tokio-io v0.2.0-alpha.6
[INFO] [stderr]   Downloaded pin-project-internal v0.4.2
[INFO] [stderr]   Downloaded tracing-attributes v0.1.4
[INFO] [stderr]   Downloaded wasm-bindgen-webidl v0.2.51
[INFO] [stderr]   Downloaded wasm-bindgen-backend v0.2.51
[INFO] [stderr]   Downloaded wasm-bindgen-futures v0.3.27
[INFO] [stderr]   Downloaded tokio v0.2.0-alpha.6
[INFO] [stderr]   Downloaded sourcefile v0.1.4
[INFO] [stderr]   Downloaded tokio-net v0.2.0-alpha.6
[INFO] [stderr]   Downloaded tokio-codec v0.2.0-alpha.6
[INFO] [stderr]   Downloaded unicase v2.5.1
[INFO] [stderr]   Downloaded web-sys v0.3.28
[INFO] [stderr]   Downloaded tracing v0.1.9
[INFO] [stderr]   Downloaded futures-timer v1.0.2
[INFO] [stderr]   Downloaded openssl-sys v0.9.51
[INFO] [stderr]   Downloaded wasm-bindgen v0.2.51
[INFO] [stderr]   Downloaded wasm-bindgen-macro-support v0.2.51
[INFO] [stderr]   Downloaded js-sys v0.3.28
[INFO] [stderr]   Downloaded hyper-tls v0.4.0-alpha.4
[INFO] [stderr]   Downloaded wasm-bindgen-macro v0.2.51
[INFO] [stderr]   Downloaded wasm-bindgen-shared v0.2.51
[INFO] [stderr]   Downloaded schannel v0.1.16
[INFO] [stderr]   Downloaded openssl v0.10.25
[INFO] [stderr]   Downloaded proc-macro2 v1.0.5
[INFO] [stderr]   Downloaded pin-project v0.4.2
[INFO] [stderr]   Downloaded futures-select-macro-preview v0.3.0-alpha.19
[INFO] [stderr]   Downloaded futures-join-macro-preview v0.3.0-alpha.19
[INFO] [stderr]   Downloaded tracing-core v0.1.6
[INFO] [stderr]   Downloaded tower-make v0.3.0-alpha.2a
[INFO] [stderr]   Downloaded encoding_rs v0.8.20
[INFO] [stderr]   Downloaded h2 v0.2.0-alpha.3
[INFO] [stderr]   Downloaded tower-service v0.3.0-alpha.2
[INFO] [stderr]   Downloaded http-body v0.2.0-alpha.3
[INFO] [stderr]   Downloaded tokio-fs v0.2.0-alpha.6
[INFO] [stderr]   Downloaded tokio-tls v0.3.0-alpha.6
[INFO] [stderr]   Downloaded hyper v0.13.0-alpha.4
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-24/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-24/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:d190cb871061d98bc6d0581d85cb2ecb09a0f8a142ba5463de30be9999fc3251" "/opt/rustwide/cargo-home/bin/cargo" "+1.61.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 25a00f83d9ee6ba3f98f36ae94bd1fff3b269aa022ba6e944dc103ae2b371581
[INFO] running `Command { std: "docker" "start" "-a" "25a00f83d9ee6ba3f98f36ae94bd1fff3b269aa022ba6e944dc103ae2b371581", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "25a00f83d9ee6ba3f98f36ae94bd1fff3b269aa022ba6e944dc103ae2b371581", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "25a00f83d9ee6ba3f98f36ae94bd1fff3b269aa022ba6e944dc103ae2b371581", kill_on_drop: false }`
[INFO] [stdout] 25a00f83d9ee6ba3f98f36ae94bd1fff3b269aa022ba6e944dc103ae2b371581
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-24/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-24/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:d190cb871061d98bc6d0581d85cb2ecb09a0f8a142ba5463de30be9999fc3251" "/opt/rustwide/cargo-home/bin/cargo" "+1.61.0" "doc" "--frozen" "--no-deps" "--document-private-items" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 155660a668cb8c7fc71c9e1fce629d39da70db84a84d539485fa19305996b97d
[INFO] running `Command { std: "docker" "start" "-a" "155660a668cb8c7fc71c9e1fce629d39da70db84a84d539485fa19305996b97d", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.5
[INFO] [stderr]    Compiling syn v1.0.5
[INFO] [stderr]    Compiling unicode-xid v0.2.0
[INFO] [stderr]    Compiling proc-macro-nested v0.1.3
[INFO] [stderr]     Checking quote v1.0.2
[INFO] [stderr]    Compiling proc-macro-hack v0.5.10
[INFO] [stderr]    Compiling union_impl v0.1.3 (/opt/rustwide/workdir/union_impl)
[INFO] [stderr]  Documenting union_impl v0.1.3 (/opt/rustwide/workdir/union_impl)
[INFO] [stderr]  Documenting union_export v0.1.3 (/opt/rustwide/workdir/union_export)
[INFO] [stderr]    Compiling union_export v0.1.3 (/opt/rustwide/workdir/union_export)
[INFO] [stderr]  Documenting union v0.1.7 (/opt/rustwide/workdir/union)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 13.93s
[INFO] running `Command { std: "docker" "inspect" "155660a668cb8c7fc71c9e1fce629d39da70db84a84d539485fa19305996b97d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "155660a668cb8c7fc71c9e1fce629d39da70db84a84d539485fa19305996b97d", kill_on_drop: false }`
[INFO] [stdout] 155660a668cb8c7fc71c9e1fce629d39da70db84a84d539485fa19305996b97d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-24/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-24/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" "RUSTFLAGS=--cap-lints=warn" "-e" "RUSTC_BOOTSTRAP=1" "-e" "DOCS_RS=1" "-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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:d190cb871061d98bc6d0581d85cb2ecb09a0f8a142ba5463de30be9999fc3251" "/opt/rustwide/cargo-home/bin/cargo" "+1.61.0" "rustdoc" "--lib" "-Zrustdoc-map" "--frozen" "--message-format=json" "--" "-Z" "unstable-options" "--document-private-items", kill_on_drop: false }`
[INFO] [stdout] b20fe751f460d51b6167f491a559ea17267af6e9898f6cdb658c01e121e63a0f
[INFO] running `Command { std: "docker" "start" "-a" "b20fe751f460d51b6167f491a559ea17267af6e9898f6cdb658c01e121e63a0f", kill_on_drop: false }`
[INFO] [stderr] error: manifest path `/opt/rustwide/workdir/Cargo.toml` is a virtual manifest, but this command requires running against an actual package in this workspace
[INFO] running `Command { std: "docker" "inspect" "b20fe751f460d51b6167f491a559ea17267af6e9898f6cdb658c01e121e63a0f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b20fe751f460d51b6167f491a559ea17267af6e9898f6cdb658c01e121e63a0f", kill_on_drop: false }`
[INFO] [stdout] b20fe751f460d51b6167f491a559ea17267af6e9898f6cdb658c01e121e63a0f