[INFO] fetching crate pest-ide 0.1.4...
[INFO] documenting pest-ide-0.1.4 against beta-2022-05-20 for beta-1.62-rustdoc-1
[INFO] extracting crate pest-ide 0.1.4 into /workspace/builds/worker-23/source
[INFO] validating manifest of crates.io crate pest-ide 0.1.4 on toolchain beta-2022-05-20
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-05-20" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate pest-ide 0.1.4
[INFO] finished tweaking crates.io crate pest-ide 0.1.4
[INFO] tweaked toml for crates.io crate pest-ide 0.1.4 written to /workspace/builds/worker-23/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-05-20" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-05-20" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-23/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-23/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:d190cb871061d98bc6d0581d85cb2ecb09a0f8a142ba5463de30be9999fc3251" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-05-20" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 96597876d80406aaa2d757233a1d8723f4d011c0b233d0ce7cd21b0590a71eb3
[INFO] running `Command { std: "docker" "start" "-a" "96597876d80406aaa2d757233a1d8723f4d011c0b233d0ce7cd21b0590a71eb3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "96597876d80406aaa2d757233a1d8723f4d011c0b233d0ce7cd21b0590a71eb3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "96597876d80406aaa2d757233a1d8723f4d011c0b233d0ce7cd21b0590a71eb3", kill_on_drop: false }`
[INFO] [stdout] 96597876d80406aaa2d757233a1d8723f4d011c0b233d0ce7cd21b0590a71eb3
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-23/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-23/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:d190cb871061d98bc6d0581d85cb2ecb09a0f8a142ba5463de30be9999fc3251" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-05-20" "doc" "--frozen" "--no-deps" "--document-private-items" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 0e8a09c74247999ac0da41487623ddce7f4b834b11f03779aa22437f8ee8d996
[INFO] running `Command { std: "docker" "start" "-a" "0e8a09c74247999ac0da41487623ddce7f4b834b11f03779aa22437f8ee8d996", kill_on_drop: false }`
[INFO] [stderr]     Checking ucd-trie v0.1.3
[INFO] [stderr]     Checking maplit v1.0.2
[INFO] [stderr]     Checking pest v2.1.3
[INFO] [stderr]     Checking pest_meta v2.1.3
[INFO] [stderr]     Checking pest_vm v2.1.0
[INFO] [stderr]  Documenting pest-ide v0.1.4 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the beta release channel
[INFO] [stdout]   --> src/lib.rs:17:1
[INFO] [stdout]    |
[INFO] [stdout] 17 | #![feature(box_syntax, box_patterns)]
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: Compilation failed, aborting rustdoc
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 2 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not document `pest-ide`
[INFO] [stdout] For more information about this error, try `rustc --explain E0554`.
[INFO] [stdout] 
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustdoc --edition=2018 --crate-type cdylib --crate-name pest_ide src/lib.rs -o /opt/rustwide/target/doc --error-format=json --json=diagnostic-rendered-ansi,artifacts,future-incompat --document-private-items -C metadata=3eec99164352363c -L dependency=/opt/rustwide/target/debug/deps --extern pest=/opt/rustwide/target/debug/deps/libpest-bd314b53b30bd25c.rmeta --extern pest_meta=/opt/rustwide/target/debug/deps/libpest_meta-4095145470e51486.rmeta --extern pest_vm=/opt/rustwide/target/debug/deps/libpest_vm-283f7f37c207214c.rmeta --cap-lints=warn --crate-version 0.1.4` (exit status: 1)
[INFO] running `Command { std: "docker" "inspect" "0e8a09c74247999ac0da41487623ddce7f4b834b11f03779aa22437f8ee8d996", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0e8a09c74247999ac0da41487623ddce7f4b834b11f03779aa22437f8ee8d996", kill_on_drop: false }`
[INFO] [stdout] 0e8a09c74247999ac0da41487623ddce7f4b834b11f03779aa22437f8ee8d996