https://issues.dlang.org/show_bug.cgi?id=18403
--- Comment #2 from [email protected] --- Investigated further. This seems to be a case of dmd miscompiling itself. The access violation happens in `dmd.tokens.Token.isKeyword` when it accesses `keywords`. This is because of issue 18412. Pull request to work around that issue: https://github.com/dlang/dmd/pull/7859 --
