```
crystal: /var/cache/omnibus/src/llvm/llvm-3.8.1.src/lib/CodeGen/LexicalScopes.cpp:160: llvm::LexicalScope* ll
vm::LexicalScopes::getOrCreateRegularScope(const llvm::DILocalScope*): Assertion `cast<DISubprogram>(Scope)->
describes(MF->getFunction())' failed.
/usr/bin/crystal: line 102:  1317 Aborted                 (core dumped) "$INSTALL_DIR/embedded/bin/crystal" "
$@"
```