[INFO] fetching crate simdvec 0.1.0...
[INFO] testing simdvec-0.1.0 against beta-2026-04-21 for beta-1.96-2
[INFO] extracting crate simdvec 0.1.0 into /workspace/builds/worker-6-tc2/source
[INFO] removed /workspace/builds/worker-6-tc2/source/rust-toolchain.toml
[INFO] started tweaking crates.io crate simdvec 0.1.0
[INFO] finished tweaking crates.io crate simdvec 0.1.0
[INFO] tweaked toml for crates.io crate simdvec 0.1.0 written to /workspace/builds/worker-6-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate simdvec 0.1.0 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] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2026-04-21" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[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-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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] 39e50d2989fe8a86e3331ae88846b8f98cc9943789af609a923b27ecca547c3c
[INFO] running `Command { std: "docker" "start" "-a" "39e50d2989fe8a86e3331ae88846b8f98cc9943789af609a923b27ecca547c3c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "39e50d2989fe8a86e3331ae88846b8f98cc9943789af609a923b27ecca547c3c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "39e50d2989fe8a86e3331ae88846b8f98cc9943789af609a923b27ecca547c3c", kill_on_drop: false }`
[INFO] [stdout] 39e50d2989fe8a86e3331ae88846b8f98cc9943789af609a923b27ecca547c3c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 31264b7c03c7502a411e4fceb3961b9706f98b80045358ad85fed210420d7368
[INFO] running `Command { std: "docker" "start" "-a" "31264b7c03c7502a411e4fceb3961b9706f98b80045358ad85fed210420d7368", kill_on_drop: false }`
[INFO] [stderr]    Compiling simdvec v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0432]: unresolved imports `std::simd::LaneCount`, `std::simd::SupportedLaneCount`
[INFO] [stdout]  --> src/lib.rs:8:24
[INFO] [stdout]   |
[INFO] [stdout] 8 |   simd::{num::SimdInt, LaneCount, Simd, SimdElement, SupportedLaneCount},
[INFO] [stdout]   |                        ^^^^^^^^^                     ^^^^^^^^^^^^^^^^^^ no `SupportedLaneCount` in `simd`
[INFO] [stdout]   |                        |
[INFO] [stdout]   |                        no `LaneCount` in `simd`
[INFO] [stdout] 
[INFO] [stdout] 
[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] Some errors have detailed explanations: E0432, E0554.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `simdvec` (lib) due to 2 previous errors
[INFO] [stdout] For more information about an error, try `rustc --explain E0432`.
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "31264b7c03c7502a411e4fceb3961b9706f98b80045358ad85fed210420d7368", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "31264b7c03c7502a411e4fceb3961b9706f98b80045358ad85fed210420d7368", kill_on_drop: false }`
[INFO] [stdout] 31264b7c03c7502a411e4fceb3961b9706f98b80045358ad85fed210420d7368
