Support back to Crystal 1.0.0

jgaskins · jgaskins · commit 60a427e5ff55 · 2021-09-12T23:15:00.000-06:00
We test against Crystal 1.0.0 up to the current release, and this change
is necessary for compatibility with some shards.
diff --git a/shard.yml b/shard.yml
@@ -25,6 +25,6 @@ development_dependencies:
   mpsc:
     github: jgaskins/mpsc
 
-crystal: 1.1.1
+crystal: 1.0.0
 
 license: MIT
