DUB and gdmd: Invalid SemVer format: 2.076.1

[ibara]

System information

• dub version: 1.27.0
• OS Platform and distribution: OpenBSD
• compiler version: N/A

Bug Description

Reported here first: https://issues.dlang.org/show_bug.cgi?id=22381 When gdmd is selected as the dub compiler, builds immediately fail with:

Invalid SemVer format: 2.076.1

This error may have gone unnoticed because dub will always select gdc over gdmd if both are available.

How to reproduce?

$ DC=gdmd dub -b release a80 --cache=local (Or any other dub invocation that uses gdmd to build.)

Expected Behavior

The build should work.