[INFO] fetching crate pass_by_catastrophe 0.1.0...
[INFO] documenting pass_by_catastrophe-0.1.0 against 1.61.0 for beta-1.62-rustdoc-1
[INFO] extracting crate pass_by_catastrophe 0.1.0 into /workspace/builds/worker-21/source
[INFO] validating manifest of crates.io crate pass_by_catastrophe 0.1.0 on toolchain 1.61.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.61.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate pass_by_catastrophe 0.1.0
[INFO] finished tweaking crates.io crate pass_by_catastrophe 0.1.0
[INFO] tweaked toml for crates.io crate pass_by_catastrophe 0.1.0 written to /workspace/builds/worker-21/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.61.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.61.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded magic-import v0.2.1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-21/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-21/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" "+1.61.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 7073e4d6b9c6f4204b87438639fdc4fbb351612a041ffe5176c86398f300e465
[INFO] running `Command { std: "docker" "start" "-a" "7073e4d6b9c6f4204b87438639fdc4fbb351612a041ffe5176c86398f300e465", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "7073e4d6b9c6f4204b87438639fdc4fbb351612a041ffe5176c86398f300e465", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7073e4d6b9c6f4204b87438639fdc4fbb351612a041ffe5176c86398f300e465", kill_on_drop: false }`
[INFO] [stdout] 7073e4d6b9c6f4204b87438639fdc4fbb351612a041ffe5176c86398f300e465
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-21/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-21/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" "+1.61.0" "doc" "--frozen" "--no-deps" "--document-private-items" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 8c173ad39c38629ef1a134dfaa13e9f842acddae7228ac72f49ae0fc2dcbfc53
[INFO] running `Command { std: "docker" "start" "-a" "8c173ad39c38629ef1a134dfaa13e9f842acddae7228ac72f49ae0fc2dcbfc53", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.126
[INFO] [stderr]    Compiling ppv-lite86 v0.2.16
[INFO] [stderr]    Compiling json v0.12.4
[INFO] [stderr]    Compiling getrandom v0.2.6
[INFO] [stderr]    Compiling rand_core v0.6.3
[INFO] [stderr]    Compiling rand_chacha v0.3.1
[INFO] [stderr]    Compiling rand v0.8.5
[INFO] [stderr]    Compiling magic-import v0.2.1
[INFO] [stderr]  Documenting pass_by_catastrophe 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:1:38
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![cfg_attr(not(feature = "stable"), feature(never_type))]
[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] [stdout] For more information about this error, try `rustc --explain E0554`.
[INFO] [stdout] 
[INFO] [stderr] error: could not document `pass_by_catastrophe`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustdoc --edition=2021 --crate-type lib --crate-name pass_by_catastrophe src/lib.rs -o /opt/rustwide/target/doc --error-format=json --json=diagnostic-rendered-ansi,artifacts,future-incompat --document-private-items -C metadata=fe64732e287204c8 -L dependency=/opt/rustwide/target/debug/deps --extern magic_import=/opt/rustwide/target/debug/deps/libmagic_import-513d2cdde2921df3.so --cap-lints=warn --crate-version 0.1.0` (exit status: 1)
[INFO] running `Command { std: "docker" "inspect" "8c173ad39c38629ef1a134dfaa13e9f842acddae7228ac72f49ae0fc2dcbfc53", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8c173ad39c38629ef1a134dfaa13e9f842acddae7228ac72f49ae0fc2dcbfc53", kill_on_drop: false }`
[INFO] [stdout] 8c173ad39c38629ef1a134dfaa13e9f842acddae7228ac72f49ae0fc2dcbfc53