[INFO] fetching crate reactor 0.1.4...
[INFO] documenting reactor-0.1.4 against 1.54.0 for beta-1.55-rustdoc-1
[INFO] extracting crate reactor 0.1.4 into /workspace/builds/worker-2/source
[INFO] validating manifest of crates.io crate reactor 0.1.4 on toolchain 1.54.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.54.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate reactor 0.1.4
[INFO] finished tweaking crates.io crate reactor 0.1.4
[INFO] tweaked toml for crates.io crate reactor 0.1.4 written to /workspace/builds/worker-2/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.54.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.54.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+1.54.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 76a1ca0e77714af7df018c51dbcbe220fe8f2ecf627f52fdb7105fa43b3fcf23
[INFO] running `Command { std: "docker" "start" "-a" "76a1ca0e77714af7df018c51dbcbe220fe8f2ecf627f52fdb7105fa43b3fcf23", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "76a1ca0e77714af7df018c51dbcbe220fe8f2ecf627f52fdb7105fa43b3fcf23", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "76a1ca0e77714af7df018c51dbcbe220fe8f2ecf627f52fdb7105fa43b3fcf23", kill_on_drop: false }`
[INFO] [stdout] 76a1ca0e77714af7df018c51dbcbe220fe8f2ecf627f52fdb7105fa43b3fcf23
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+1.54.0" "doc" "--frozen" "--no-deps" "--document-private-items" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 8bb5646e4b6c9a90e59868da4f1df0cee7b3b688af03ce35fb4e890888d2b94e
[INFO] running `Command { std: "docker" "start" "-a" "8bb5646e4b6c9a90e59868da4f1df0cee7b3b688af03ce35fb4e890888d2b94e", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Checking bitflags v0.1.1
[INFO] [stderr]     Checking new_debug_unreachable v1.0.4
[INFO] [stderr]     Checking libc v0.1.12
[INFO] [stderr]     Checking mac v0.1.1
[INFO] [stderr]     Checking bytes v0.2.11
[INFO] [stderr]     Checking slab v0.1.3
[INFO] [stderr]     Checking time v0.3.1
[INFO] [stderr]     Checking winapi v0.1.23
[INFO] [stderr]     Checking futf v0.1.4
[INFO] [stderr]     Checking tendril v0.1.6
[INFO] [stderr]     Checking nix v0.3.10
[INFO] [stderr]     Checking mio v0.4.4
[INFO] [stderr]  Documenting reactor v0.1.4 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0432]: unresolved import `std::net::lookup_host`
[INFO] [stdout]  --> src/reactor_ctrl.rs:2:16
[INFO] [stdout]   |
[INFO] [stdout] 2 |                lookup_host,
[INFO] [stdout]   |                ^^^^^^^^^^^ no `lookup_host` in `net`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]    --> src/lib.rs:176:1
[INFO] [stdout]     |
[INFO] [stdout] 176 | #![feature(lookup_host)]
[INFO] [stdout]     | ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: Compilation failed, aborting rustdoc
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 3 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0432, E0554.
[INFO] [stdout] 
[INFO] [stdout] For more information about an error, try `rustc --explain E0432`.
[INFO] [stdout] 
[INFO] [stderr] error: could not document `reactor`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustdoc --crate-type lib --crate-name reactor src/lib.rs -o /opt/rustwide/target/doc --error-format=json --json=diagnostic-rendered-ansi --document-private-items -L dependency=/opt/rustwide/target/debug/deps --extern log=/opt/rustwide/target/debug/deps/liblog-f8abb66ffc16068c.rmeta --extern mio=/opt/rustwide/target/debug/deps/libmio-de1069f3cc3e22d6.rmeta --extern tendril=/opt/rustwide/target/debug/deps/libtendril-d893f5c3c5da36b4.rmeta --extern time=/opt/rustwide/target/debug/deps/libtime-c1e258fdc16d8907.rmeta --cap-lints=warn --crate-version 0.1.4` (exit status: 1)
[INFO] running `Command { std: "docker" "inspect" "8bb5646e4b6c9a90e59868da4f1df0cee7b3b688af03ce35fb4e890888d2b94e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8bb5646e4b6c9a90e59868da4f1df0cee7b3b688af03ce35fb4e890888d2b94e", kill_on_drop: false }`
[INFO] [stdout] 8bb5646e4b6c9a90e59868da4f1df0cee7b3b688af03ce35fb4e890888d2b94e
