[tor-bugs] #31091 [Core Tor/Tor]: Bug stracktrace when pluggable transport cannot bind to port

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#31091: Bug stracktrace when pluggable transport cannot bind to port
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 Reporter:  s7r           |          Owner:  ahf
     Type:  defect        |         Status:  needs_revision
 Priority:  Very High     |      Milestone:  Tor: 0.4.2.x-final
Component:  Core Tor/Tor  |        Version:  Tor: unspecified
 Severity:  Normal        |     Resolution:
 Keywords:  042-must      |  Actual Points:
Parent ID:                |         Points:
 Reviewer:  nickm         |        Sponsor:
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Comment (by ahf):

 1) These assertions and BUG() statements were added by me to figure out if
 these cases could ever trigger when we rewrote the process library for s8.
 I can't think of any easy way to test these without quite some refactoring
 of the transports.c file (which would be lovely to do though)

 2) I have made the new PR against 0.4.0.

 3) These cases are legitimate and can happen, so I don't think we should
 log anything particularly here. The important part being the exit handler
 is always called.

 I have created a new PR against maint-0.4.0 which can be seen here:
 https://github.com/torproject/tor/pull/1396

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Ticket URL: <https://trac.torproject.org/projects/tor/ticket/31091#comment:8>
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