Doesn't parse with Crystal 1.9.2

[dsisnero]

f:\programming\source\repos\git\crystal_repos\cltk>crystal spec
Showing last frame. Use --error-trace for full trace.

In lib\crystal-dfa\src\core_ext\range.cr:51:8

51 | struct Tuple(T)
^
Error: type var must be *T, not T

f:\programming\source\repos\git\crystal_repos\cltk