December 22, 2018
https://issues.dlang.org/show_bug.cgi?id=19508

          Issue ID: 19508
           Summary: std/socket.d(986): Assertion failure depending on
                    environment
           Product: D
           Version: D2
          Hardware: All
                OS: All
            Status: NEW
          Severity: normal
          Priority: P1
         Component: phobos
          Assignee: nobody@puremagic.com
          Reporter: bugzilla@digitalmars.com

This randomly pops up in the autotester, which then everyone ignores and reruns the test:

--- std.socket(981) test fails depending on environment ---
 (core.exception.AssertError@std/socket.d(986): Assertion failure

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