[INFO] fetching crate target-cpu-macro 0.1.3...
[INFO] documenting target-cpu-macro-0.1.3 against 1.69.0 for beta-1.70-rustdoc-1
[INFO] extracting crate target-cpu-macro 0.1.3 into /workspace/builds/worker-1-tc1/source
[INFO] validating manifest of crates.io crate target-cpu-macro 0.1.3 on toolchain 1.69.0
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.69.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate target-cpu-macro 0.1.3
[INFO] finished tweaking crates.io crate target-cpu-macro 0.1.3
[INFO] tweaked toml for crates.io crate target-cpu-macro 0.1.3 written to /workspace/builds/worker-1-tc1/source/Cargo.toml
[INFO] crate crates.io crate target-cpu-macro 0.1.3 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.69.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded target-cpu-fetch v0.1.3
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/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@sha256:5ff2268d62e97bff2cde7d5815dd6ed5b47097566f13b8d0ca110b04b60e07ed" "/opt/rustwide/cargo-home/bin/cargo" "+1.69.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] d317142605f81177fd0705e88aba5e23838d3dce6ffe7a46c67338e1b2a4ceaa
[INFO] running `Command { std: "docker" "start" "-a" "d317142605f81177fd0705e88aba5e23838d3dce6ffe7a46c67338e1b2a4ceaa", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "d317142605f81177fd0705e88aba5e23838d3dce6ffe7a46c67338e1b2a4ceaa", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d317142605f81177fd0705e88aba5e23838d3dce6ffe7a46c67338e1b2a4ceaa", kill_on_drop: false }`
[INFO] [stdout] d317142605f81177fd0705e88aba5e23838d3dce6ffe7a46c67338e1b2a4ceaa
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/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" "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@sha256:5ff2268d62e97bff2cde7d5815dd6ed5b47097566f13b8d0ca110b04b60e07ed" "/opt/rustwide/cargo-home/bin/cargo" "+1.69.0" "doc" "--frozen" "--no-deps" "--document-private-items" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] d9ebfebe8da3942e50479b75638006f802c0dc2918834f3bdef53e7b0ae59773
[INFO] running `Command { std: "docker" "start" "-a" "d9ebfebe8da3942e50479b75638006f802c0dc2918834f3bdef53e7b0ae59773", kill_on_drop: false }`
[INFO] [stderr]     Checking json v0.12.4
[INFO] [stderr]     Checking target-cpu-fetch v0.1.3
[INFO] [stderr]  Documenting target-cpu-macro v0.1.3 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]   --> src/lib.rs:10:1
[INFO] [stdout]    |
[INFO] [stdout] 10 | #![feature(proc_macro_hygiene)]
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0554`.
[INFO] [stdout] 
[INFO] [stderr] error: could not document `target-cpu-macro`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustdoc --edition=2018 --crate-type proc-macro --crate-name target_cpu_macro src/lib.rs -o /opt/rustwide/target/doc --error-format=json --json=diagnostic-rendered-ansi,artifacts,future-incompat --document-private-items -C metadata=d6498453be82afce -L dependency=/opt/rustwide/target/debug/deps --extern json=/opt/rustwide/target/debug/deps/libjson-569b617fe4fadf3c.rmeta --extern target_cpu_fetch=/opt/rustwide/target/debug/deps/libtarget_cpu_fetch-f72e66e08dcd2ce4.rmeta --extern proc_macro --cap-lints=warn --crate-version 0.1.3` (exit status: 1)
[INFO] running `Command { std: "docker" "inspect" "d9ebfebe8da3942e50479b75638006f802c0dc2918834f3bdef53e7b0ae59773", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d9ebfebe8da3942e50479b75638006f802c0dc2918834f3bdef53e7b0ae59773", kill_on_drop: false }`
[INFO] [stdout] d9ebfebe8da3942e50479b75638006f802c0dc2918834f3bdef53e7b0ae59773
