[INFO] fetching crate papito_codegen 0.1.1...
[INFO] documenting papito_codegen-0.1.1 against 1.69.0 for beta-1.70-rustdoc-1
[INFO] extracting crate papito_codegen 0.1.1 into /workspace/builds/worker-4-tc1/source
[INFO] validating manifest of crates.io crate papito_codegen 0.1.1 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 papito_codegen 0.1.1
[INFO] finished tweaking crates.io crate papito_codegen 0.1.1
[INFO] tweaked toml for crates.io crate papito_codegen 0.1.1 written to /workspace/builds/worker-4-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 papito_dom v0.1.1
[INFO] [stderr]   Downloaded papito v0.1.1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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] 0cd1bb4fe936c034c6f00d044bfa7cdea2f8f9e0f455058200a74ca54ea556b1
[INFO] running `Command { std: "docker" "start" "-a" "0cd1bb4fe936c034c6f00d044bfa7cdea2f8f9e0f455058200a74ca54ea556b1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "0cd1bb4fe936c034c6f00d044bfa7cdea2f8f9e0f455058200a74ca54ea556b1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0cd1bb4fe936c034c6f00d044bfa7cdea2f8f9e0f455058200a74ca54ea556b1", kill_on_drop: false }`
[INFO] [stdout] 0cd1bb4fe936c034c6f00d044bfa7cdea2f8f9e0f455058200a74ca54ea556b1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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] 259db4f53ba01b1936bc07829d6d96880b9eba8e0a0aa4b1726fdbb7e2e04ce7
[INFO] running `Command { std: "docker" "start" "-a" "259db4f53ba01b1936bc07829d6d96880b9eba8e0a0aa4b1726fdbb7e2e04ce7", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Checking unicode-xid v0.1.0
[INFO] [stderr]     Checking unicode-segmentation v1.10.1
[INFO] [stderr]     Checking proc-macro2 v0.2.3
[INFO] [stderr]     Checking heck v0.3.3
[INFO] [stderr]     Checking quote v0.4.2
[INFO] [stderr]     Checking syn v0.12.15
[INFO] [stderr]  Documenting papito_codegen v0.1.1 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]  --> src/lib.rs:1:1
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(proc_macro)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^ help: remove the attribute
[INFO] [stdout]   |
[INFO] [stdout]   = help: the feature `proc_macro` has been stable since `1.29.0` and no longer requires an attribute to enable
[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 `papito_codegen`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustdoc --crate-type proc-macro --crate-name papito_codegen src/lib.rs -o /opt/rustwide/target/doc --error-format=json --json=diagnostic-rendered-ansi,artifacts,future-incompat --document-private-items -C metadata=dd299c0f3007a2e9 -L dependency=/opt/rustwide/target/debug/deps --extern heck=/opt/rustwide/target/debug/deps/libheck-d51407732fa1ec9b.rmeta --extern proc_macro2=/opt/rustwide/target/debug/deps/libproc_macro2-3fbc2bc78a81951a.rmeta --extern quote=/opt/rustwide/target/debug/deps/libquote-c1997018c01122aa.rmeta --extern syn=/opt/rustwide/target/debug/deps/libsyn-79c32729989bcfce.rmeta --extern proc_macro --cap-lints=warn --crate-version 0.1.1` (exit status: 1)
[INFO] running `Command { std: "docker" "inspect" "259db4f53ba01b1936bc07829d6d96880b9eba8e0a0aa4b1726fdbb7e2e04ce7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "259db4f53ba01b1936bc07829d6d96880b9eba8e0a0aa4b1726fdbb7e2e04ce7", kill_on_drop: false }`
[INFO] [stdout] 259db4f53ba01b1936bc07829d6d96880b9eba8e0a0aa4b1726fdbb7e2e04ce7
