old_contents: #!/usr/bin/env -S python3 -u
  """
  Run a local instance of Boulder for testing purposes.
  
  This runs in non-monolithic mode and requires RabbitMQ on localhost.
  
  Keeps servers alive until ^C. Exit non-zero if any servers fail to
  start, or die before ^C.
  """
  
  import errno
  import os
  import sys
  import time
  
  sys.path.append('./test')
  import startservers
  
  # Setup issuance hierarchy
  startservers.setupHierarchy()
  
  if not startservers.start(race_detection=False, fakeclock=None):
      sys.exit(1)
  try:
      os.wait()
  
      # If we reach here, a child died early. Log what died:
      startservers.check()
      sys.exit(1)
  except KeyboardInterrupt:
      print("\nstopping servers.")
  except OSError as v:
      # Ignore EINTR, which happens when we get SIGTERM or SIGINT (i.e. when
      # someone hits Ctrl-C after running docker-compose up or start.py.
      if v.errno != errno.EINTR:
          raise
  
new_contents: #!/usr/bin/env -S python3 -u
  """
  Run a local instance of Boulder for testing purposes.
  
  Boulder always runs as a collection of services. This script will
  start them all on their own ports (see test/startservers.py)
  
  Keeps servers alive until ^C. Exit non-zero if any servers fail to
  start, or die before ^C.
  """
  
  import errno
  import os
  import sys
  import time
  
  sys.path.append('./test')
  import startservers
  
  # Setup issuance hierarchy
  startservers.setupHierarchy()
  
  if not startservers.start(race_detection=False, fakeclock=None):
      sys.exit(1)
  try:
      os.wait()
  
      # If we reach here, a child died early. Log what died:
      startservers.check()
      sys.exit(1)
  except KeyboardInterrupt:
      print("\nstopping servers.")
  except OSError as v:
      # Ignore EINTR, which happens when we get SIGTERM or SIGINT (i.e. when
      # someone hits Ctrl-C after running docker-compose up or start.py.
      if v.errno != errno.EINTR:
          raise
  
subject: Remove the last mention of RabbitMQ (in start.py) (#5189)