[INFO] fetching crate parze 0.7.3...
[INFO] documenting parze-0.7.3 against beta-2022-05-20 for beta-1.62-rustdoc-1
[INFO] extracting crate parze 0.7.3 into /workspace/builds/worker-38/source
[INFO] validating manifest of crates.io crate parze 0.7.3 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 parze 0.7.3
[INFO] finished tweaking crates.io crate parze 0.7.3
[INFO] tweaked toml for crates.io crate parze 0.7.3 written to /workspace/builds/worker-38/source/Cargo.toml
[INFO] crate crates.io crate parze 0.7.3 already has a lockfile, it will not be regenerated
[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-38/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-38/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] e53c82f2e780aa609c070282c2ada7c2006c5fd1a19a5c8baa50e660def222c8
[INFO] running `Command { std: "docker" "start" "-a" "e53c82f2e780aa609c070282c2ada7c2006c5fd1a19a5c8baa50e660def222c8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "e53c82f2e780aa609c070282c2ada7c2006c5fd1a19a5c8baa50e660def222c8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e53c82f2e780aa609c070282c2ada7c2006c5fd1a19a5c8baa50e660def222c8", kill_on_drop: false }`
[INFO] [stdout] e53c82f2e780aa609c070282c2ada7c2006c5fd1a19a5c8baa50e660def222c8
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-38/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-38/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] 590478d42d2cbd125a001548ba2f8eff04087c440f5ed2585354118e156cf496
[INFO] running `Command { std: "docker" "start" "-a" "590478d42d2cbd125a001548ba2f8eff04087c440f5ed2585354118e156cf496", kill_on_drop: false }`
[INFO] [stderr]    Compiling parze-declare v0.2.0
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the beta release channel
[INFO] [stdout]  --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/parze-declare-0.2.0/src/lib.rs:1:1
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(proc_macro_def_site, proc_macro_quote, proc_macro_hygiene, trait_alias)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the beta release channel
[INFO] [stdout]  --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/parze-declare-0.2.0/src/lib.rs:1:12
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(proc_macro_def_site, proc_macro_quote, proc_macro_hygiene, trait_alias)]
[INFO] [stdout]   |            ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the beta release channel
[INFO] [stdout]  --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/parze-declare-0.2.0/src/lib.rs:1:33
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(proc_macro_def_site, proc_macro_quote, proc_macro_hygiene, trait_alias)]
[INFO] [stdout]   |                                 ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 3 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0554`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `parze-declare` due to 4 previous errors
[INFO] running `Command { std: "docker" "inspect" "590478d42d2cbd125a001548ba2f8eff04087c440f5ed2585354118e156cf496", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "590478d42d2cbd125a001548ba2f8eff04087c440f5ed2585354118e156cf496", kill_on_drop: false }`
[INFO] [stdout] 590478d42d2cbd125a001548ba2f8eff04087c440f5ed2585354118e156cf496