[INFO] fetching crate dirty-fsm 0.2.2...
[INFO] documenting dirty-fsm-0.2.2 against beta-2022-05-20 for beta-1.62-rustdoc-1
[INFO] extracting crate dirty-fsm 0.2.2 into /workspace/builds/worker-80/source
[INFO] validating manifest of crates.io crate dirty-fsm 0.2.2 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] removed /workspace/builds/worker-80/source/rust-toolchain.toml
[INFO] started tweaking crates.io crate dirty-fsm 0.2.2
[INFO] finished tweaking crates.io crate dirty-fsm 0.2.2
[INFO] tweaked toml for crates.io crate dirty-fsm 0.2.2 written to /workspace/builds/worker-80/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] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-80/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-80/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] 1ebe158ead47cfb96eca03de6413e8f40568653025c7ca831c47d6804a6d944f
[INFO] running `Command { std: "docker" "start" "-a" "1ebe158ead47cfb96eca03de6413e8f40568653025c7ca831c47d6804a6d944f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "1ebe158ead47cfb96eca03de6413e8f40568653025c7ca831c47d6804a6d944f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1ebe158ead47cfb96eca03de6413e8f40568653025c7ca831c47d6804a6d944f", kill_on_drop: false }`
[INFO] [stdout] 1ebe158ead47cfb96eca03de6413e8f40568653025c7ca831c47d6804a6d944f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-80/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-80/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] 188504eebc6d97c2bc65be73c07fa1002b085c52da676d85214d3b8c8eee483a
[INFO] running `Command { std: "docker" "start" "-a" "188504eebc6d97c2bc65be73c07fa1002b085c52da676d85214d3b8c8eee483a", kill_on_drop: false }`
[INFO] [stderr]    Compiling autocfg v1.1.0
[INFO] [stderr]    Compiling libc v0.2.126
[INFO] [stderr]    Compiling log v0.4.17
[INFO] [stderr]     Checking cfg-if v1.0.0
[INFO] [stderr]    Compiling num-traits v0.2.15
[INFO] [stderr]    Compiling num-integer v0.1.45
[INFO] [stderr]     Checking time v0.1.44
[INFO] [stderr]     Checking chrono v0.4.19
[INFO] [stderr]  Documenting dirty-fsm v0.2.2 (/opt/rustwide/workdir)
[INFO] [stderr] error: could not document `dirty-fsm`
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the beta release channel
[INFO] [stdout]   --> src/lib.rs:67:1
[INFO] [stdout]    |
[INFO] [stdout] 67 | #![feature(derive_default_enum)]
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove the attribute
[INFO] [stdout]    |
[INFO] [stdout]    = help: the feature `derive_default_enum` has been stable since 1.62.0 and no longer requires an attribute to enable
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] 
[INFO] [stdout] error: Compilation failed, aborting rustdoc
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] Caused by:
[INFO] [stdout] error: aborting due to 2 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]   process didn't exit successfully: `rustdoc --edition=2018 --crate-type lib --crate-name dirty_fsm src/lib.rs -o /opt/rustwide/target/doc --error-format=json --json=diagnostic-rendered-ansi,artifacts,future-incompat --document-private-items -C metadata=f5337c4c0708f14e -L dependency=/opt/rustwide/target/debug/deps --extern chrono=/opt/rustwide/target/debug/deps/libchrono-15850d97439854ff.rmeta --extern log=/opt/rustwide/target/debug/deps/liblog-0b61054b794719d9.rmeta --cap-lints=warn --crate-version 0.2.2` (exit status: 1)
[INFO] [stdout] For more information about this error, try `rustc --explain E0554`.
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "188504eebc6d97c2bc65be73c07fa1002b085c52da676d85214d3b8c8eee483a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "188504eebc6d97c2bc65be73c07fa1002b085c52da676d85214d3b8c8eee483a", kill_on_drop: false }`
[INFO] [stdout] 188504eebc6d97c2bc65be73c07fa1002b085c52da676d85214d3b8c8eee483a