From f814cd73d7fb97751434fbd1099ec1abb9068769 Mon Sep 17 00:00:00 2001
From: Tristan Sloughter <t@crashfast.com>
Date: Mon, 13 May 2019 11:46:43 -0600
Subject: add testing of otp 18 19 and 20

---
 .cirrus.yml | 22 +++++++---------------
 1 file changed, 7 insertions(+), 15 deletions(-)

diff --git a/.cirrus.yml b/.cirrus.yml
index d7e7e3e..38fc107 100644
--- a/.cirrus.yml
+++ b/.cirrus.yml
@@ -1,20 +1,12 @@
-build_task:
-  container:
-    image: circleci/erlang:21
-  rebar3_cache:
-    folder: _build
-    fingerprint_script: cat rebar.lock
-    populate_script: rebar3 compile --deps_only
-
 test_task:
   container:
-    image: circleci/erlang:21
-  depends_on:
-    - build
-  rebar3_cache:
-    folder: _build
-    fingerprint_script: cat rebar.lock
-  test_script: rebar3 ct
+    matrix:
+      - image: erlang:21
+      - image: erlang:20
+      - image: erlang:19
+      - image: erlang:18
+  test_script: |
+    rebar3 ct
   always:
     junit_artifacts:
       path: "_build/test/logs/ct_run.*/junit_report.xml"
-- 
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