[INFO] fetching crate cxx-async 0.1.1...
[INFO] documenting cxx-async-0.1.1 against try#6ee483316d2e4581572121d60a955affb2032eb3+cargoflags=-Zrustdoc-scrape-examples for scrape-examples
[INFO] extracting crate cxx-async 0.1.1 into /workspace/builds/worker-4/source
[INFO] validating manifest of crates.io crate cxx-async 0.1.1 on toolchain 6ee483316d2e4581572121d60a955affb2032eb3
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+6ee483316d2e4581572121d60a955affb2032eb3" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate cxx-async 0.1.1
[INFO] finished tweaking crates.io crate cxx-async 0.1.1
[INFO] tweaked toml for crates.io crate cxx-async 0.1.1 written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+6ee483316d2e4581572121d60a955affb2032eb3" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+6ee483316d2e4581572121d60a955affb2032eb3" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:bb5b0feb4f87116a4ea905b7ff5bf5b85913db05e9f0fbc1abdd3168928d9075" "/opt/rustwide/cargo-home/bin/cargo" "+6ee483316d2e4581572121d60a955affb2032eb3" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 7b29e0dafbd73e95243465239d13e7679f1026c4a1f704eb284bcb5d7eff5c39
[INFO] running `Command { std: "docker" "start" "-a" "7b29e0dafbd73e95243465239d13e7679f1026c4a1f704eb284bcb5d7eff5c39", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "7b29e0dafbd73e95243465239d13e7679f1026c4a1f704eb284bcb5d7eff5c39", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7b29e0dafbd73e95243465239d13e7679f1026c4a1f704eb284bcb5d7eff5c39", kill_on_drop: false }`
[INFO] [stdout] 7b29e0dafbd73e95243465239d13e7679f1026c4a1f704eb284bcb5d7eff5c39
[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" "RUSTFLAGS=--cap-lints=forbid" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-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:bb5b0feb4f87116a4ea905b7ff5bf5b85913db05e9f0fbc1abdd3168928d9075" "/opt/rustwide/cargo-home/bin/cargo" "+6ee483316d2e4581572121d60a955affb2032eb3" "doc" "--frozen" "--no-deps" "--document-private-items" "--message-format=json" "-Zrustdoc-scrape-examples", kill_on_drop: false }`
[INFO] [stdout] e6ba9c68b5da893f256614e09c894a4a331feee67132ad6a14c4f4996909c9a2
[INFO] running `Command { std: "docker" "start" "-a" "e6ba9c68b5da893f256614e09c894a4a331feee67132ad6a14c4f4996909c9a2", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.47
[INFO] [stderr]    Compiling unicode-ident v1.0.5
[INFO] [stderr]    Compiling quote v1.0.21
[INFO] [stderr]    Compiling syn v1.0.105
[INFO] [stderr]    Compiling cc v1.0.77
[INFO] [stderr]    Compiling futures-core v0.3.25
[INFO] [stderr]    Compiling autocfg v1.1.0
[INFO] [stderr]    Compiling libc v0.2.138
[INFO] [stderr]    Compiling futures-channel v0.3.25
[INFO] [stderr]    Compiling scratch v1.0.2
[INFO] [stderr]    Compiling futures-task v0.3.25
[INFO] [stderr]    Compiling memchr v2.5.0
[INFO] [stderr]    Compiling unicode-width v0.1.10
[INFO] [stderr]     Checking futures-sink v0.3.25
[INFO] [stderr]    Compiling cxxbridge-flags v1.0.83
[INFO] [stderr]    Compiling futures-util v0.3.25
[INFO] [stderr]    Compiling termcolor v1.1.3
[INFO] [stderr]     Checking futures-io v0.3.25
[INFO] [stderr]    Compiling once_cell v1.16.0
[INFO] [stderr]     Checking pin-utils v0.1.0
[INFO] [stderr]     Checking pin-project-lite v0.2.9
[INFO] [stderr]    Compiling pkg-config v0.3.26
[INFO] [stderr]    Compiling codespan-reporting v0.11.1
[INFO] [stderr]    Compiling slab v0.4.7
[INFO] [stderr]    Compiling link-cplusplus v1.0.7
[INFO] [stderr]    Compiling cxx v1.0.83
[INFO] [stderr]     Checking num_cpus v1.14.0
[INFO] [stderr]    Compiling cxx-build v1.0.83
[INFO] [stderr]    Compiling futures-macro v0.3.25
[INFO] [stderr]    Compiling cxxbridge-macro v1.0.83
[INFO] [stderr]    Compiling async-recursion v1.0.0
[INFO] [stderr]    Compiling cxx-async-macro v0.1.1
[INFO] [stderr]    Compiling cxx-async v0.1.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Checking futures-executor v0.3.25
[INFO] [stderr]     Checking futures v0.3.25
[INFO] [stderr]     Scraping cxx-async v0.1.1 (/opt/rustwide/workdir)
[INFO] [stderr]  Documenting cxx-async v0.1.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 19.20s
[INFO] running `Command { std: "docker" "inspect" "e6ba9c68b5da893f256614e09c894a4a331feee67132ad6a14c4f4996909c9a2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e6ba9c68b5da893f256614e09c894a4a331feee67132ad6a14c4f4996909c9a2", kill_on_drop: false }`
[INFO] [stdout] e6ba9c68b5da893f256614e09c894a4a331feee67132ad6a14c4f4996909c9a2
[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" "RUSTFLAGS=--cap-lints=forbid" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-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:bb5b0feb4f87116a4ea905b7ff5bf5b85913db05e9f0fbc1abdd3168928d9075" "/opt/rustwide/cargo-home/bin/cargo" "+6ee483316d2e4581572121d60a955affb2032eb3" "rustdoc" "--lib" "-Zrustdoc-map" "-Z" "unstable-options" "--config" "build.rustdocflags=[\"-Z\", \"unstable-options\", \"--document-private-items\"]" "--frozen" "--message-format=json" "-Zrustdoc-scrape-examples", kill_on_drop: false }`
[INFO] [stdout] f159eec2c5f6f248b1ed2baa9c2de46fc65a88fad5538415a1b30cbfe9d892d8
[INFO] running `Command { std: "docker" "start" "-a" "f159eec2c5f6f248b1ed2baa9c2de46fc65a88fad5538415a1b30cbfe9d892d8", kill_on_drop: false }`
[INFO] [stderr]    Compiling cxx-async v0.1.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Scraping cxx-async v0.1.1 (/opt/rustwide/workdir)
[INFO] [stderr]  Documenting cxx-async v0.1.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.53s
[INFO] running `Command { std: "docker" "inspect" "f159eec2c5f6f248b1ed2baa9c2de46fc65a88fad5538415a1b30cbfe9d892d8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f159eec2c5f6f248b1ed2baa9c2de46fc65a88fad5538415a1b30cbfe9d892d8", kill_on_drop: false }`
[INFO] [stdout] f159eec2c5f6f248b1ed2baa9c2de46fc65a88fad5538415a1b30cbfe9d892d8