Function try_audit_mesh_cycle 

pub fn try_audit_mesh_cycle<M: TriangleMeshView + ?Sized>(
    mesh: &M,
    tolerance: Tolerance,
) -> Result<MeshCycleHealth, MeshAuditError>

audit_mesh_cycle with one fallible, precomputable edge-record allocation; audit_mesh_scratch_bytes bounds it like try_audit_mesh.