[INFO] cloning repository https://github.com/cau777/fast_vec
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/cau777/fast_vec" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fcau777%2Ffast_vec", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fcau777%2Ffast_vec'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 677827ea37ce2784d5e05a53e24d2ec4ab5ef7da
[INFO] documenting cau777/fast_vec against beta-2026-04-21 for beta-1.96-rustdoc-2
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fcau777%2Ffast_vec" "/workspace/builds/worker-1-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-1-tc2/source'...
[INFO] [stderr] done.
[INFO] removed /workspace/builds/worker-1-tc2/source/rust-toolchain.toml
[INFO] started tweaking git repo https://github.com/cau777/fast_vec
[INFO] finished tweaking git repo https://github.com/cau777/fast_vec
[INFO] tweaked toml for git repo https://github.com/cau777/fast_vec written to /workspace/builds/worker-1-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/cau777/fast_vec on toolchain beta-2026-04-21
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2026-04-21" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/cau777/fast_vec 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" "+beta-2026-04-21" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2026-04-21" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] be3f4cf2ec11c183f003cc4bc47fcbf294e8ff1f6ec38ed9f74abffb61a4909c
[INFO] running `Command { std: "docker" "start" "-a" "be3f4cf2ec11c183f003cc4bc47fcbf294e8ff1f6ec38ed9f74abffb61a4909c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "be3f4cf2ec11c183f003cc4bc47fcbf294e8ff1f6ec38ed9f74abffb61a4909c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "be3f4cf2ec11c183f003cc4bc47fcbf294e8ff1f6ec38ed9f74abffb61a4909c", kill_on_drop: false }`
[INFO] [stdout] be3f4cf2ec11c183f003cc4bc47fcbf294e8ff1f6ec38ed9f74abffb61a4909c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2026-04-21" "doc" "--frozen" "--no-deps" "--document-private-items" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 5a2d83e0bdde42b6fcc66729c037511b496fe26c90fc2ffa4b80ca30a4852e2e
[INFO] running `Command { std: "docker" "start" "-a" "5a2d83e0bdde42b6fcc66729c037511b496fe26c90fc2ffa4b80ca30a4852e2e", kill_on_drop: false }`
[INFO] [stderr]  Documenting fast-vec v0.1.1 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the beta release channel
[INFO] [stdout]  --> src/lib.rs:1:1
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(portable_simd)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0554`.
[INFO] [stdout] 
[INFO] [stderr] error: could not document `fast-vec`
[INFO] running `Command { std: "docker" "inspect" "5a2d83e0bdde42b6fcc66729c037511b496fe26c90fc2ffa4b80ca30a4852e2e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5a2d83e0bdde42b6fcc66729c037511b496fe26c90fc2ffa4b80ca30a4852e2e", kill_on_drop: false }`
[INFO] [stdout] 5a2d83e0bdde42b6fcc66729c037511b496fe26c90fc2ffa4b80ca30a4852e2e
