[INFO] fetching crate langbox 0.5.0...
[INFO] documenting langbox-0.5.0 against 1.75.0 for beta-1.76-rustdoc-1
[INFO] extracting crate langbox 0.5.0 into /workspace/builds/worker-6-tc1/source
[INFO] validating manifest of crates.io crate langbox 0.5.0 on toolchain 1.75.0
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.75.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate langbox 0.5.0
[INFO] removed 0 missing tests
[INFO] finished tweaking crates.io crate langbox 0.5.0
[INFO] tweaked toml for crates.io crate langbox 0.5.0 written to /workspace/builds/worker-6-tc1/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.75.0" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.75.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded langbox_procmacro v0.2.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+1.75.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 77a77a4de10a982883f31e6e0dbf2be5480e0648832a8594aed9dd782ea37050
[INFO] running `Command { std: "docker" "start" "-a" "77a77a4de10a982883f31e6e0dbf2be5480e0648832a8594aed9dd782ea37050", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "77a77a4de10a982883f31e6e0dbf2be5480e0648832a8594aed9dd782ea37050", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "77a77a4de10a982883f31e6e0dbf2be5480e0648832a8594aed9dd782ea37050", kill_on_drop: false }`
[INFO] [stdout] 77a77a4de10a982883f31e6e0dbf2be5480e0648832a8594aed9dd782ea37050
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+1.75.0" "doc" "--frozen" "--no-deps" "--document-private-items" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 5c782b6e63fa99d3d9482ac33d147d273b7d79c943dc6685ed2d769b991c761b
[INFO] running `Command { std: "docker" "start" "-a" "5c782b6e63fa99d3d9482ac33d147d273b7d79c943dc6685ed2d769b991c761b", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.76
[INFO] [stderr]    Compiling hashbrown v0.14.3
[INFO] [stderr]    Compiling equivalent v1.0.1
[INFO] [stderr]    Compiling winnow v0.5.33
[INFO] [stderr]    Compiling toml_datetime v0.6.5
[INFO] [stderr]     Checking getrandom v0.2.11
[INFO] [stderr]     Checking ahash v0.8.7
[INFO] [stderr]    Compiling quote v1.0.35
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]    Compiling indexmap v2.1.0
[INFO] [stderr]    Compiling toml_edit v0.19.15
[INFO] [stderr]    Compiling proc-macro-crate v1.3.1
[INFO] [stderr]    Compiling langbox_procmacro v0.2.0
[INFO] [stderr]  Documenting langbox v0.5.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]   --> src/lib.rs:64:1
[INFO] [stdout]    |
[INFO] [stdout] 64 | #![feature(try_trait_v2)]
[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:65:1
[INFO] [stdout]    |
[INFO] [stdout] 65 | #![feature(never_type)]
[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:66:1
[INFO] [stdout]    |
[INFO] [stdout] 66 | #![feature(exhaustive_patterns)]
[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 document `langbox`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `/opt/rustwide/rustup-home/toolchains/1.75.0-x86_64-unknown-linux-gnu/bin/rustdoc --edition=2021 --crate-type lib --crate-name langbox src/lib.rs -o /opt/rustwide/target/doc --error-format=json --json=diagnostic-rendered-ansi,artifacts,future-incompat --document-private-items -C metadata=33e01b56bc796670 -L dependency=/opt/rustwide/target/debug/deps --extern ahash=/opt/rustwide/target/debug/deps/libahash-ef1e7322eabfac71.rmeta --extern langbox_procmacro=/opt/rustwide/target/debug/deps/liblangbox_procmacro-2e3b01a616760eec.so --cap-lints=warn --crate-version 0.5.0` (exit status: 1)
[INFO] running `Command { std: "docker" "inspect" "5c782b6e63fa99d3d9482ac33d147d273b7d79c943dc6685ed2d769b991c761b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5c782b6e63fa99d3d9482ac33d147d273b7d79c943dc6685ed2d769b991c761b", kill_on_drop: false }`
[INFO] [stdout] 5c782b6e63fa99d3d9482ac33d147d273b7d79c943dc6685ed2d769b991c761b
