[INFO] fetching crate async-circe 0.2.3...
[INFO] documenting async-circe-0.2.3 against 1.69.0 for beta-1.70-rustdoc-1
[INFO] extracting crate async-circe 0.2.3 into /workspace/builds/worker-1-tc1/source
[INFO] validating manifest of crates.io crate async-circe 0.2.3 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 async-circe 0.2.3
[INFO] finished tweaking crates.io crate async-circe 0.2.3
[INFO] tweaked toml for crates.io crate async-circe 0.2.3 written to /workspace/builds/worker-1-tc1/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" __CARGO_TEST_CHANNEL_OVERRIDE_DO_NOT_USE_THIS="nightly" "/workspace/cargo-home/bin/cargo" "+1.69.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[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] 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] 39e58598fef1393f181666b2951cfd4c4ff73c72f772b5aacc619c776d1cd014
[INFO] running `Command { std: "docker" "start" "-a" "39e58598fef1393f181666b2951cfd4c4ff73c72f772b5aacc619c776d1cd014", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "39e58598fef1393f181666b2951cfd4c4ff73c72f772b5aacc619c776d1cd014", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "39e58598fef1393f181666b2951cfd4c4ff73c72f772b5aacc619c776d1cd014", kill_on_drop: false }`
[INFO] [stdout] 39e58598fef1393f181666b2951cfd4c4ff73c72f772b5aacc619c776d1cd014
[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] 2b158124dfde4099409bc4fddebffed381a341844904c688a295b696cd43eabd
[INFO] running `Command { std: "docker" "start" "-a" "2b158124dfde4099409bc4fddebffed381a341844904c688a295b696cd43eabd", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.56
[INFO] [stderr]    Compiling libc v0.2.142
[INFO] [stderr]    Compiling pkg-config v0.3.26
[INFO] [stderr]    Compiling log v0.4.17
[INFO] [stderr]     Checking once_cell v1.17.1
[INFO] [stderr]    Compiling openssl v0.10.52
[INFO] [stderr]     Checking foreign-types-shared v0.1.1
[INFO] [stderr]     Checking pin-project-lite v0.2.9
[INFO] [stderr]    Compiling native-tls v0.2.11
[INFO] [stderr]     Checking openssl-probe v0.1.5
[INFO] [stderr]    Compiling tokio v1.28.0
[INFO] [stderr]     Checking bytes v1.4.0
[INFO] [stderr]     Checking foreign-types v0.3.2
[INFO] [stderr]     Checking tracing-core v0.1.30
[INFO] [stderr]    Compiling openssl-sys v0.9.87
[INFO] [stderr]    Compiling quote v1.0.26
[INFO] [stderr]     Checking socket2 v0.4.9
[INFO] [stderr]     Checking mio v0.8.6
[INFO] [stderr]    Compiling syn v2.0.15
[INFO] [stderr]    Compiling openssl-macros v0.1.1
[INFO] [stderr]    Compiling tracing-attributes v0.1.24
[INFO] [stderr]     Checking tracing v0.1.37
[INFO] [stderr]     Checking tokio-native-tls v0.3.1
[INFO] [stderr]  Documenting async-circe v0.2.3 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]   --> src/lib.rs:28:1
[INFO] [stdout]    |
[INFO] [stdout] 28 | #![feature(doc_cfg)]
[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 `async-circe`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustdoc --edition=2021 --crate-type lib --crate-name async_circe src/lib.rs -o /opt/rustwide/target/doc --cfg 'feature="default"' --cfg 'feature="native-tls"' --cfg 'feature="tls"' --cfg 'feature="tokio-native-tls"' --error-format=json --json=diagnostic-rendered-ansi,artifacts,future-incompat --document-private-items -C metadata=5a6f8fe97ffe79a6 -L dependency=/opt/rustwide/target/debug/deps --extern native_tls=/opt/rustwide/target/debug/deps/libnative_tls-186d44a0599a19e2.rmeta --extern tokio=/opt/rustwide/target/debug/deps/libtokio-7cc38c9d0fe5587d.rmeta --extern tokio_native_tls=/opt/rustwide/target/debug/deps/libtokio_native_tls-81e0f2d1359dadd1.rmeta --extern tracing=/opt/rustwide/target/debug/deps/libtracing-216aa16b6b60c250.rmeta --cap-lints=warn --crate-version 0.2.3` (exit status: 1)
[INFO] running `Command { std: "docker" "inspect" "2b158124dfde4099409bc4fddebffed381a341844904c688a295b696cd43eabd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2b158124dfde4099409bc4fddebffed381a341844904c688a295b696cd43eabd", kill_on_drop: false }`
[INFO] [stdout] 2b158124dfde4099409bc4fddebffed381a341844904c688a295b696cd43eabd
