[INFO] fetching crate enum-lexer-macro 0.1.0...
[INFO] documenting enum-lexer-macro-0.1.0 against 1.69.0 for beta-1.70-rustdoc-1
[INFO] extracting crate enum-lexer-macro 0.1.0 into /workspace/builds/worker-1-tc1/source
[INFO] validating manifest of crates.io crate enum-lexer-macro 0.1.0 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 enum-lexer-macro 0.1.0
[INFO] finished tweaking crates.io crate enum-lexer-macro 0.1.0
[INFO] tweaked toml for crates.io crate enum-lexer-macro 0.1.0 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] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded regex-dfa-gen v0.1.0
[INFO] [stderr]   Downloaded sorted-vec v0.3.7
[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] d632f74f26ae4eb7abd3f44537cf70997bc953981b16f2d52810cf07186f310d
[INFO] running `Command { std: "docker" "start" "-a" "d632f74f26ae4eb7abd3f44537cf70997bc953981b16f2d52810cf07186f310d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "d632f74f26ae4eb7abd3f44537cf70997bc953981b16f2d52810cf07186f310d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d632f74f26ae4eb7abd3f44537cf70997bc953981b16f2d52810cf07186f310d", kill_on_drop: false }`
[INFO] [stdout] d632f74f26ae4eb7abd3f44537cf70997bc953981b16f2d52810cf07186f310d
[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] a7634c009fdc45a7f9eacf20760a65f722c81ee758d34238635dc6f29a63b9be
[INFO] running `Command { std: "docker" "start" "-a" "a7634c009fdc45a7f9eacf20760a65f722c81ee758d34238635dc6f29a63b9be", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.56
[INFO] [stderr]    Compiling libc v0.2.142
[INFO] [stderr]     Checking cfg-if v1.0.0
[INFO] [stderr]     Checking quick-error v1.2.3
[INFO] [stderr]     Checking termcolor v1.2.0
[INFO] [stderr]     Checking sorted-vec v0.3.7
[INFO] [stderr]     Checking dot v0.1.4
[INFO] [stderr]    Compiling log v0.4.17
[INFO] [stderr]     Checking humantime v1.3.0
[INFO] [stderr]     Checking quote v1.0.26
[INFO] [stderr]     Checking syn v1.0.109
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking env_logger v0.7.1
[INFO] [stderr]    Compiling syn v2.0.15
[INFO] [stderr]    Compiling thiserror-impl v1.0.40
[INFO] [stderr]     Checking thiserror v1.0.40
[INFO] [stderr]     Checking regex-dfa-gen v0.1.0
[INFO] [stderr]  Documenting enum-lexer-macro v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]  --> src/lib.rs:3:12
[INFO] [stdout]   |
[INFO] [stdout] 3 | #![feature(proc_macro_quote)]
[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 `enum-lexer-macro`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustdoc --edition=2018 --crate-type proc-macro --crate-name enum_lexer_macro src/lib.rs -o /opt/rustwide/target/doc --error-format=json --json=diagnostic-rendered-ansi,artifacts,future-incompat --document-private-items -C metadata=abcf96f64548561e -L dependency=/opt/rustwide/target/debug/deps --extern proc_macro2=/opt/rustwide/target/debug/deps/libproc_macro2-a230dfd92c211513.rmeta --extern quote=/opt/rustwide/target/debug/deps/libquote-53fa8753eb6a0e69.rmeta --extern regex_dfa_gen=/opt/rustwide/target/debug/deps/libregex_dfa_gen-352aab3a4d32eb5a.rmeta --extern syn=/opt/rustwide/target/debug/deps/libsyn-8825c42c6006ba2b.rmeta --extern thiserror=/opt/rustwide/target/debug/deps/libthiserror-63856496d826138c.rmeta --extern proc_macro --cap-lints=warn --crate-version 0.1.0` (exit status: 1)
[INFO] running `Command { std: "docker" "inspect" "a7634c009fdc45a7f9eacf20760a65f722c81ee758d34238635dc6f29a63b9be", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a7634c009fdc45a7f9eacf20760a65f722c81ee758d34238635dc6f29a63b9be", kill_on_drop: false }`
[INFO] [stdout] a7634c009fdc45a7f9eacf20760a65f722c81ee758d34238635dc6f29a63b9be
