The step built `-p dr-gpu` and then looked for a `*.so` to read the API level
out of with `file`. dr-gpu declares no `crate-type`, so it produces an rlib —
an archive of object files no linker has touched, and about which `file` has
nothing to say. The step could therefore only ever reach its own "no aarch64
.so was produced" branch, whatever the linker did, which is the one thing it
exists to rule out.
Builds `darkroom-android` instead: the workspace's only
`crate-type = ["cdylib"]`, and the artefact that ships in the APK. The API
level verified is now the one a device will refuse to install against.
The neighbouring comment claiming only core crates cross-compile is left
alone until the build proves otherwise; it is either stale or this commit is
wrong, and the same run answers both.
Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
dtourolleandClaude Opus 5
83528c068a