Mac osx unable to access psuedo terminal

Hey All,

I maintain an opensource project called pymodbus and use travis for our CI builds. Recently, I tried to update xcode version to 11.x series from xcode8.3 and the osx builds are failing with error
E serial.serialutil.SerialException: [Errno 35] could not open port /dev/ptyp0: [Errno 35] Resource temporarily unavailable: '/dev/ptyp0'
Any hints on how to overcome this issue?
Link to the build.