exit status: 1 with stderr:
<stdin>:11:8: error: cannot convert value of type '[RGBA<UInt8>]' to expected argument type 'UnsafeBufferPointer<RGBA<UInt8>>' constF(rgbaArray) ^~~~~~~~~ <stdin>:12:10: error: '&' used with non-inout argument of type 'UnsafeMutableBufferPointer<RGBA<UInt8>>' mutableF(&rgbaArray) ^~~~~~~~~~