[INFO] fetching crate catnip 0.3.0...
[INFO] documenting catnip-0.3.0 against 1.69.0 for beta-1.70-rustdoc-1
[INFO] extracting crate catnip 0.3.0 into /workspace/builds/worker-4-tc1/source
[INFO] validating manifest of crates.io crate catnip 0.3.0 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] removed /workspace/builds/worker-4-tc1/source/rust-toolchain.toml
[INFO] started tweaking crates.io crate catnip 0.3.0
[INFO] removed 0 missing examples
[INFO] finished tweaking crates.io crate catnip 0.3.0
[INFO] tweaked toml for crates.io crate catnip 0.3.0 written to /workspace/builds/worker-4-tc1/source/Cargo.toml
[INFO] crate crates.io crate catnip 0.3.0 already has a lockfile, it will not be regenerated
[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 panic-never v0.1.0
[INFO] [stderr]   Downloaded array-init v2.0.1
[INFO] [stderr]   Downloaded byte_struct_derive v0.4.2
[INFO] [stderr]   Downloaded ufmt-write v0.1.0
[INFO] [stderr]   Downloaded ufmt-macros v0.1.1
[INFO] [stderr]   Downloaded ufmt v0.1.0
[INFO] [stderr]   Downloaded byte_struct v0.8.0
[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@sha256:97d61d7686bf65f8ecb15491ab51835e82dc9176a96a831f143a431b191fc501" "/opt/rustwide/cargo-home/bin/cargo" "+1.69.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 2b0a2cdc2cdc3f2b89ffa9eb969a3a7039f7c5b025dde2d6bcd3a2b589e450ad
[INFO] running `Command { std: "docker" "start" "-a" "2b0a2cdc2cdc3f2b89ffa9eb969a3a7039f7c5b025dde2d6bcd3a2b589e450ad", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "2b0a2cdc2cdc3f2b89ffa9eb969a3a7039f7c5b025dde2d6bcd3a2b589e450ad", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2b0a2cdc2cdc3f2b89ffa9eb969a3a7039f7c5b025dde2d6bcd3a2b589e450ad", kill_on_drop: false }`
[INFO] [stdout] 2b0a2cdc2cdc3f2b89ffa9eb969a3a7039f7c5b025dde2d6bcd3a2b589e450ad
[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@sha256:97d61d7686bf65f8ecb15491ab51835e82dc9176a96a831f143a431b191fc501" "/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] 925bb7337b49f68d6e1e3c79836e684d48155ffb9ec09ab206c85b584951dbb3
[INFO] running `Command { std: "docker" "start" "-a" "925bb7337b49f68d6e1e3c79836e684d48155ffb9ec09ab206c85b584951dbb3", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.40
[INFO] [stderr]    Compiling quote v1.0.20
[INFO] [stderr]    Compiling unicode-ident v1.0.2
[INFO] [stderr]    Compiling proc-macro2 v0.4.30
[INFO] [stderr]    Compiling syn v1.0.98
[INFO] [stderr]    Compiling unicode-xid v0.1.0
[INFO] [stderr]    Compiling syn v0.15.44
[INFO] [stderr]    Compiling proc-macro-hack v0.5.19
[INFO] [stderr]     Checking ufmt-write v0.1.0
[INFO] [stderr]     Checking array-init v2.0.1
[INFO] [stderr]    Compiling quote v0.6.13
[INFO] [stderr]    Compiling byte_struct_derive v0.4.2
[INFO] [stderr]     Checking byte_struct v0.8.0
[INFO] [stderr]    Compiling ufmt-macros v0.1.1
[INFO] [stderr]    Compiling modular-bitfield-impl v0.11.2
[INFO] [stderr]     Checking ufmt v0.1.0
[INFO] [stderr]     Checking modular-bitfield v0.11.2
[INFO] [stderr]  Documenting catnip v0.3.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]   --> src/lib.rs:67:1
[INFO] [stdout]    |
[INFO] [stdout] 67 | #![feature(generic_const_exprs)]
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]   --> src/lib.rs:68:1
[INFO] [stdout]    |
[INFO] [stdout] 68 | #![feature(test)]
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the feature `generic_const_exprs` is incomplete and may not be safe to use and/or cause compiler crashes
[INFO] [stdout]   --> src/lib.rs:67:12
[INFO] [stdout]    |
[INFO] [stdout] 67 | #![feature(generic_const_exprs)]
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: see issue #76560 <https://github.com/rust-lang/rust/issues/76560> for more information
[INFO] [stdout]    = note: `#[warn(incomplete_features)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 2 previous errors; 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0554`.
[INFO] [stdout] 
[INFO] [stderr] error: could not document `catnip`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustdoc --edition=2021 --crate-type lib --crate-name catnip src/lib.rs -o /opt/rustwide/target/doc --cfg 'feature="default"' --cfg 'feature="no_std"' --error-format=json --json=diagnostic-rendered-ansi,artifacts,future-incompat --document-private-items -C metadata=e579c77ef1e9a9c1 -L dependency=/opt/rustwide/target/debug/deps --extern byte_struct=/opt/rustwide/target/debug/deps/libbyte_struct-429dd7f9fb3ff1e7.rmeta --extern modular_bitfield=/opt/rustwide/target/debug/deps/libmodular_bitfield-b500f9af66ef3694.rmeta --extern static_assertions=/opt/rustwide/target/debug/deps/libstatic_assertions-bcac22ab02125223.rmeta --extern ufmt=/opt/rustwide/target/debug/deps/libufmt-76eff926e0176816.rmeta --cap-lints=warn --crate-version 0.3.0` (exit status: 1)
[INFO] running `Command { std: "docker" "inspect" "925bb7337b49f68d6e1e3c79836e684d48155ffb9ec09ab206c85b584951dbb3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "925bb7337b49f68d6e1e3c79836e684d48155ffb9ec09ab206c85b584951dbb3", kill_on_drop: false }`
[INFO] [stdout] 925bb7337b49f68d6e1e3c79836e684d48155ffb9ec09ab206c85b584951dbb3
