[Issue 22445] New: random seg fault compiling std.bigint when running under semaphoreci

[d-bugmail at puremagic.com]

https://issues.dlang.org/show_bug.cgi?id=22445

          Issue ID: 22445
           Summary: random seg fault compiling std.bigint when running
                    under semaphoreci
           Product: D
           Version: D2
          Hardware: x86_64
                OS: Linux
            Status: NEW
          Severity: normal
          Priority: P1
         Component: dmd
          Assignee: nobody at puremagic.com
          Reporter: bugzilla at digitalmars.com

```
../dmd/generated/linux/release/64/dmd  -conf= -I../druntime/import  -w -de
-preview=dip1000 -preview=dtorfields -preview=fieldwise -m64 -fPIC -O -release
-unittest -version=StdUnittest -c
-ofgenerated/linux/release/64/unittest/std/bitmanip.o std/bitmanip.d
posix.mak:382: recipe for target
'generated/linux/debug/64/unittest/std/bigint.o' failed
make[1]: *** [generated/linux/debug/64/unittest/std/bigint.o] Segmentation
fault
make[1]: *** Waiting for unfinished jobs...
```

Sometimes it happens, sometimes it does not.

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