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luhenry
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Sep 6, 2026
rerun's own .cargo/config.toml unconditionally points PYO3_CONFIG_FILE at rerun_py/pyo3-build.cfg for every cargo invocation, expecting a pixi activation hook to have written it first; outside pixi the file never exists and pyo3-build-config's build script fails to open it.
lance-core 9.0.0's SIMD_SUPPORT closure has cfg arms for aarch64/x86_64/loongarch64 with no catch-all, so it evaluates to () instead of SimdSupport on riscv64 and fails to compile (E0308). No compatible 9.0.x release fixes it, so a riscv64-fixed copy of the crate is vendored from its crates.io tarball at build time and wired in via [patch.crates-io].
crates.io's API returns 403 for requests with no User-Agent header.
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rerun-sdk0.37.1Compiles the
rerun_bindingsPyO3 extension (rerun_py/) against the rerun workspace's ~760 riscv64 crates (datafusion, lance, tonic/tokio, hdf5-pure). Upstream publishes no riscv64 wheel.Mirrors upstream's
reusable_build_and_upload_wheels.ymlMODE=prbuild (its own default Cargo features).Differs from upstream
rerun-clibinary - the wgpu/egui native viewer is a separate ~16-core job needing a wasm/JS toolchain, out of scope here;RERUN_ALLOW_MISSING_BIN=1skips build.rs's requirement for it, soimport rerun/logging/gRPC work butrerun.spawn()/serve()raise instead of launching a viewer.yum install protobuf-compiler protobuf-devel+PROTOC_INCLUDE=/usr/include- lance needs protoc at build time; upstream's wheel-packaged protoc has no riscv64 build.--no-build-isolation- build.rs refuses to run inside pip's isolated build venv.Matrix: cp312/cp313/cp314 only - our registry has no riscv64 pyarrow (a hard runtime dependency) for cp310/cp311, the abi3 floor pyo3 declares.
Testing
tests/e2e_redap_testsandtests/api_sandbox(upstream sandboxes, not the SDK's regression tests) andtests/integration/test_headless_viewer.py(spawns the unbuiltrerun-cli)License: OK
Built on cp312; results pending.