fix(ci): do not gate the targeted repair on the source classifier #205
2026-09-05
fix(ci): do not gate the targeted repair on the source classifier
rebuild-abi-gap ran build-one.R with --sensitive-only, which skips a version the source classifier does not call r-minor-sensitive. That classifier misses Rcpp, so the repair skipped it on every slot, leaving its 4.5-built flat binary as the only copy: flat 200 built under R 4.5.3 4.4/ 404 4.5/ 404 4.6/ 404 Every R 4.4 client on those slots then failed at dyn.load(). A real install check across 8 slots and 3 minors found 44 such failures, Rcpp, Matrix and RJSONIO among them. Since bincraft v5.3.0 the destination is decided by the built binary's symbols in upload_single_binary(), so building unconditionally is safe: a package that needs a per-minor slot lands there, one that does not lands in the flat slot. Skipping before the build is precisely what removed that decision.