Add build config

.build.yml

@@ -0,0 +1,15 @@
+image: alpine/edge
+
+packages:
+  - crystal
+
+sources:
+  - https://git.sr.ht/~arestifo/crystal-cbor
+
+tasks:
+  - lint: |
+      cd crystal-cbor
+      crystal tool format --chec
+  - test: |
+      cd crystal-cbor
+      crystal spec

.travis.yml

@@ -1,6 +0,0 @@
-language: crystal
-
-# Uncomment the following if you'd like Travis to run specs and check code formatting
-# script:
-#   - crystal spec
-#   - crystal tool format --check