[INFO] fetching crate simd-polyfill 0.1.0...
[INFO] testing simd-polyfill-0.1.0 against beta-2026-04-21 for beta-1.96-2
[INFO] extracting crate simd-polyfill 0.1.0 into /workspace/builds/worker-4-tc2/source
[INFO] started tweaking crates.io crate simd-polyfill 0.1.0
[INFO] finished tweaking crates.io crate simd-polyfill 0.1.0
[INFO] tweaked toml for crates.io crate simd-polyfill 0.1.0 written to /workspace/builds/worker-4-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate simd-polyfill 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] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 70 packages to latest compatible versions
[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-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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] 796b5f96573c5d6306d63f480cd7ae6713713c2da78fca35f63a434539d2f09c
[INFO] running `Command { std: "docker" "start" "-a" "796b5f96573c5d6306d63f480cd7ae6713713c2da78fca35f63a434539d2f09c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "796b5f96573c5d6306d63f480cd7ae6713713c2da78fca35f63a434539d2f09c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "796b5f96573c5d6306d63f480cd7ae6713713c2da78fca35f63a434539d2f09c", kill_on_drop: false }`
[INFO] [stdout] 796b5f96573c5d6306d63f480cd7ae6713713c2da78fca35f63a434539d2f09c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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] 944fd1ef009f83ebd8a65fcb2ad634f8beba350804012b0a88ce899fbde1759c
[INFO] running `Command { std: "docker" "start" "-a" "944fd1ef009f83ebd8a65fcb2ad634f8beba350804012b0a88ce899fbde1759c", kill_on_drop: false }`
[INFO] [stderr]    Compiling simd-polyfill v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0432]: unresolved imports `core::simd::LaneCount`, `core::simd::SupportedLaneCount`
[INFO] [stdout]  --> src/x86.rs:6:24
[INFO] [stdout]   |
[INFO] [stdout] 6 |     simd::{prelude::*, LaneCount, SimdElement, SupportedLaneCount},
[INFO] [stdout]   |                        ^^^^^^^^^               ^^^^^^^^^^^^^^^^^^ no `SupportedLaneCount` in `simd`
[INFO] [stdout]   |                        |
[INFO] [stdout]   |                        no `LaneCount` in `simd`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0432]: unresolved import `core::simd::ToBitMask`
[INFO] [stdout]  --> src/x86/sse.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | use core::simd::ToBitMask;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^ no `ToBitMask` in `simd`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0432]: unresolved import `core::simd::ToBitMask`
[INFO] [stdout]  --> src/x86/sse2.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | use core::simd::ToBitMask;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^ no `ToBitMask` in `simd`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0432]: unresolved import `core::simd::Which`
[INFO] [stdout]    --> src/x86/sse.rs:113:25
[INFO] [stdout]     |
[INFO] [stdout] 113 |         use core::simd::Which::*;
[INFO] [stdout]     |                         ^^^^^ could not find `Which` in `simd`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0432]: unresolved import `core::simd::Which`
[INFO] [stdout]    --> src/x86/sse.rs:120:25
[INFO] [stdout]     |
[INFO] [stdout] 120 |         use core::simd::Which::*;
[INFO] [stdout]     |                         ^^^^^ could not find `Which` in `simd`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0432]: unresolved imports `core::simd::Swizzle2`, `core::simd::Which`
[INFO] [stdout]    --> src/x86/sse.rs:198:26
[INFO] [stdout]     |
[INFO] [stdout] 198 |         use core::simd::{Swizzle2, Which};
[INFO] [stdout]     |                          ^^^^^^^^  ^^^^^ no `Which` in `simd`
[INFO] [stdout]     |                          |
[INFO] [stdout]     |                          no `Swizzle2` in `simd`
[INFO] [stdout]     |
[INFO] [stdout] help: a similar name exists in the module
[INFO] [stdout]     |
[INFO] [stdout] 198 -         use core::simd::{Swizzle2, Which};
[INFO] [stdout] 198 +         use core::simd::{Swizzle, Which};
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0432]: unresolved import `core::simd::Which`
[INFO] [stdout]    --> src/x86.rs:390:17
[INFO] [stdout]     |
[INFO] [stdout] 390 |             use core::simd::Which;
[INFO] [stdout]     |                 ^^^^^^^^^^^^^^^^^ no `Which` in `simd`
[INFO] [stdout]     |
[INFO] [stdout]    ::: src/x86/ssse3.rs:61:9
[INFO] [stdout]     |
[INFO] [stdout]  61 |         alignr!(IMM8, u8, 8, a, b)
[INFO] [stdout]     |         -------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this error originates in the macro `alignr` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0432]: unresolved import `core::simd::Which`
[INFO] [stdout]    --> src/x86.rs:390:17
[INFO] [stdout]     |
[INFO] [stdout] 390 |             use core::simd::Which;
[INFO] [stdout]     |                 ^^^^^^^^^^^^^^^^^ no `Which` in `simd`
[INFO] [stdout]     |
[INFO] [stdout]    ::: src/x86/ssse3.rs:65:9
[INFO] [stdout]     |
[INFO] [stdout]  65 |         alignr!(IMM8, u8, 16, a, b)
[INFO] [stdout]     |         --------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this error originates in the macro `alignr` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0432]: unresolved imports `core::simd::Swizzle2`, `core::simd::Which`
[INFO] [stdout]    --> src/x86.rs:537:30
[INFO] [stdout]     |
[INFO] [stdout] 537 |             use core::simd::{Swizzle2, Which};
[INFO] [stdout]     |                              ^^^^^^^^  ^^^^^ no `Which` in `simd`
[INFO] [stdout]     |                              |
[INFO] [stdout]     |                              no `Swizzle2` in `simd`
[INFO] [stdout]     |
[INFO] [stdout]    ::: src/x86/sse41.rs:5:78
[INFO] [stdout]     |
[INFO] [stdout]   5 |     fn _mm_blend_epi16<const IMM8: i32>(a: __m128i, b: __m128i) -> __m128i { blend!(IMM8, i16x8, a, b) }
[INFO] [stdout]     |                                                                              ------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this error originates in the macro `blend` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] help: a similar name exists in the module
[INFO] [stdout]     |
[INFO] [stdout] 537 -             use core::simd::{Swizzle2, Which};
[INFO] [stdout] 537 +             use core::simd::{Swizzle, Which};
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0432]: unresolved imports `core::simd::Swizzle2`, `core::simd::Which`
[INFO] [stdout]    --> src/x86.rs:537:30
[INFO] [stdout]     |
[INFO] [stdout] 537 |             use core::simd::{Swizzle2, Which};
[INFO] [stdout]     |                              ^^^^^^^^  ^^^^^ no `Which` in `simd`
[INFO] [stdout]     |                              |
[INFO] [stdout]     |                              no `Swizzle2` in `simd`
[INFO] [stdout]     |
[INFO] [stdout]    ::: src/x86/sse41.rs:8:74
[INFO] [stdout]     |
[INFO] [stdout]   8 |     fn _mm_blend_ps<const IMM8: i32>(a: __m128,  b: __m128 ) -> __m128 { blend!(IMM8, f32x4, a, b) }
[INFO] [stdout]     |                                                                          ------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this error originates in the macro `blend` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] help: a similar name exists in the module
[INFO] [stdout]     |
[INFO] [stdout] 537 -             use core::simd::{Swizzle2, Which};
[INFO] [stdout] 537 +             use core::simd::{Swizzle, Which};
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0432]: unresolved imports `core::simd::Swizzle2`, `core::simd::Which`
[INFO] [stdout]    --> src/x86.rs:537:30
[INFO] [stdout]     |
[INFO] [stdout] 537 |             use core::simd::{Swizzle2, Which};
[INFO] [stdout]     |                              ^^^^^^^^  ^^^^^ no `Which` in `simd`
[INFO] [stdout]     |                              |
[INFO] [stdout]     |                              no `Swizzle2` in `simd`
[INFO] [stdout]     |
[INFO] [stdout]    ::: src/x86/sse41.rs:11:75
[INFO] [stdout]     |
[INFO] [stdout]  11 |     fn _mm_blend_pd<const IMM8: i32>(a: __m128d, b: __m128d) -> __m128d { blend!(IMM8, f64x2, a, b) }
[INFO] [stdout]     |                                                                           ------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this error originates in the macro `blend` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] help: a similar name exists in the module
[INFO] [stdout]     |
[INFO] [stdout] 537 -             use core::simd::{Swizzle2, Which};
[INFO] [stdout] 537 +             use core::simd::{Swizzle, Which};
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0432]: unresolved import `core::simd::ToBitMask`
[INFO] [stdout]   --> src/x86/sse41.rs:65:13
[INFO] [stdout]    |
[INFO] [stdout] 65 |         use core::simd::ToBitMask;
[INFO] [stdout]    |             ^^^^^^^^^^^^^^^^^^^^^ no `ToBitMask` 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:5:1
[INFO] [stdout]   |
[INFO] [stdout] 5 | #![feature(portable_simd)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0107]: trait takes 1 generic argument but 2 generic arguments were supplied
[INFO] [stdout]    --> src/x86.rs:374:35
[INFO] [stdout]     |
[INFO] [stdout] 374 |             impl<const IMM8: i32> Swizzle<4, 4> for Shuffle<IMM8> {
[INFO] [stdout]     |                                   ^^^^^^^  --- help: remove the unnecessary generic argument
[INFO] [stdout]     |                                   |
[INFO] [stdout]     |                                   expected 1 generic argument
[INFO] [stdout]     |
[INFO] [stdout]    ::: src/x86/sse.rs:192:9
[INFO] [stdout]     |
[INFO] [stdout] 192 |         shuffle4! { IMM8, a }.into()
[INFO] [stdout]     |         --------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this error originates in the macro `shuffle4` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0107]: trait takes 1 generic argument but 2 generic arguments were supplied
[INFO] [stdout]    --> src/x86.rs:374:35
[INFO] [stdout]     |
[INFO] [stdout] 374 |             impl<const IMM8: i32> Swizzle<4, 4> for Shuffle<IMM8> {
[INFO] [stdout]     |                                   ^^^^^^^  --- help: remove the unnecessary generic argument
[INFO] [stdout]     |                                   |
[INFO] [stdout]     |                                   expected 1 generic argument
[INFO] [stdout]     |
[INFO] [stdout]    ::: src/x86/sse2.rs:512:9
[INFO] [stdout]     |
[INFO] [stdout] 512 |         shuffle4! { IMM8, a }.into()
[INFO] [stdout]     |         --------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this error originates in the macro `shuffle4` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0107, E0432, E0554.
[INFO] [stdout] 
[INFO] [stdout] For more information about an error, try `rustc --explain E0107`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `simd-polyfill` (lib) due to 15 previous errors
[INFO] running `Command { std: "docker" "inspect" "944fd1ef009f83ebd8a65fcb2ad634f8beba350804012b0a88ce899fbde1759c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "944fd1ef009f83ebd8a65fcb2ad634f8beba350804012b0a88ce899fbde1759c", kill_on_drop: false }`
[INFO] [stdout] 944fd1ef009f83ebd8a65fcb2ad634f8beba350804012b0a88ce899fbde1759c
