update travis to build matrix

Author: devonestes

.travis.yml

@@ -2,8 +2,12 @@ sudo: false
 
 language: elixir
 
-otp_release: '21.1'
-elixir: '1.8'
+elixir:
+  - 1.11.1
+  - 1.8.0
+otp_release:
+  - 23.1.0
+  - 20.0.0
 
 stages:
   - check formatted
@@ -12,9 +16,7 @@ stages:
 jobs:
   include:
     - stage: test
-
-    - otp_release: '18.3'
-      elixir: '1.4'
+      script: mix test
 
     - stage: check formatted
       script: mix format --check-formatted

mix.lock

@@ -1,13 +1,13 @@
 %{
-  "cowboy": {:hex, :cowboy, "1.1.2", "61ac29ea970389a88eca5a65601460162d370a70018afe6f949a29dca91f3bb0", [:rebar3], [{:cowlib, "~> 1.0.2", [hex: :cowlib, repo: "hexpm", optional: false]}, {:ranch, "~> 1.3.2", [hex: :ranch, repo: "hexpm", optional: false]}], "hexpm"},
-  "cowlib": {:hex, :cowlib, "1.0.2", "9d769a1d062c9c3ac753096f868ca121e2730b9a377de23dec0f7e08b1df84ee", [:make], []},
-  "earmark": {:hex, :earmark, "1.2.4", "99b637c62a4d65a20a9fb674b8cffb8baa771c04605a80c911c4418c69b75439", [:mix], [], "hexpm"},
-  "ex_doc": {:hex, :ex_doc, "0.18.1", "37c69d2ef62f24928c1f4fdc7c724ea04aecfdf500c4329185f8e3649c915baf", [:mix], [{:earmark, "~> 1.1", [hex: :earmark, repo: "hexpm", optional: false]}], "hexpm"},
-  "hackney": {:hex, :hackney, "1.3.2", "43bd07ab88753f5e136e38fddd2a09124bee25733b03361eeb459d0173fc17ab", [:rebar, :make], [{:idna, "~> 1.0.2", [hex: :idna, optional: false]}, {:ssl_verify_hostname, "~> 1.0.5", [hex: :ssl_verify_hostname, optional: false]}]},
-  "idna": {:hex, :idna, "1.0.3", "d456a8761cad91c97e9788c27002eb3b773adaf5c893275fc35ba4e3434bbd9b", [:rebar3], []},
-  "jason": {:hex, :jason, "1.0.0", "0f7cfa9bdb23fed721ec05419bcee2b2c21a77e926bce0deda029b5adc716fe2", [:mix], [{:decimal, "~> 1.0", [hex: :decimal, repo: "hexpm", optional: true]}], "hexpm"},
-  "mime": {:hex, :mime, "1.0.1", "05c393850524767d13a53627df71beeebb016205eb43bfbd92d14d24ec7a1b51", [:mix], []},
-  "plug": {:hex, :plug, "1.4.3", "236d77ce7bf3e3a2668dc0d32a9b6f1f9b1f05361019946aae49874904be4aed", [:mix], [{:cowboy, "~> 1.0.1 or ~> 1.1", [hex: :cowboy, repo: "hexpm", optional: true]}, {:mime, "~> 1.0", [hex: :mime, repo: "hexpm", optional: false]}], "hexpm"},
-  "ranch": {:hex, :ranch, "1.3.2", "e4965a144dc9fbe70e5c077c65e73c57165416a901bd02ea899cfd95aa890986", [:rebar3], [], "hexpm"},
-  "ssl_verify_hostname": {:hex, :ssl_verify_hostname, "1.0.6", "45866d958d9ae51cfe8fef0050ab8054d25cba23ace43b88046092aa2c714645", [:make], []},
+  "cowboy": {:hex, :cowboy, "1.1.2", "61ac29ea970389a88eca5a65601460162d370a70018afe6f949a29dca91f3bb0", [:rebar3], [{:cowlib, "~> 1.0.2", [hex: :cowlib, repo: "hexpm", optional: false]}, {:ranch, "~> 1.3.2", [hex: :ranch, repo: "hexpm", optional: false]}], "hexpm", "f4763bbe08233eceed6f24bc4fcc8d71c17cfeafa6439157c57349aa1bb4f17c"},
+  "cowlib": {:hex, :cowlib, "1.0.2", "9d769a1d062c9c3ac753096f868ca121e2730b9a377de23dec0f7e08b1df84ee", [:make], [], "hexpm", "db622da03aa039e6366ab953e31186cc8190d32905e33788a1acb22744e6abd2"},
+  "earmark": {:hex, :earmark, "1.2.4", "99b637c62a4d65a20a9fb674b8cffb8baa771c04605a80c911c4418c69b75439", [:mix], [], "hexpm", "1b34655872366414f69dd987cb121c049f76984b6ac69f52fff6d8fd64d29cfd"},
+  "ex_doc": {:hex, :ex_doc, "0.18.1", "37c69d2ef62f24928c1f4fdc7c724ea04aecfdf500c4329185f8e3649c915baf", [:mix], [{:earmark, "~> 1.1", [hex: :earmark, repo: "hexpm", optional: false]}], "hexpm", "f050061c87ad39478c942995b5a20c40f2c0bc06525404613b8b0474cb8bd796"},
+  "hackney": {:hex, :hackney, "1.3.2", "43bd07ab88753f5e136e38fddd2a09124bee25733b03361eeb459d0173fc17ab", [:make, :rebar], [{:idna, "~> 1.0.2", [hex: :idna, repo: "hexpm", optional: false]}, {:ssl_verify_hostname, "~> 1.0.5", [hex: :ssl_verify_hostname, repo: "hexpm", optional: false]}], "hexpm", "9b811cff637b29f9c7e2c61abf01986c85cd4f64a9422315fd803993b4e82615"},
+  "idna": {:hex, :idna, "1.0.3", "d456a8761cad91c97e9788c27002eb3b773adaf5c893275fc35ba4e3434bbd9b", [:rebar3], [], "hexpm", "357d489a51112db4f216034406834f9172b3c0ff5a12f83fb28b25ca271541d1"},
+  "jason": {:hex, :jason, "1.0.0", "0f7cfa9bdb23fed721ec05419bcee2b2c21a77e926bce0deda029b5adc716fe2", [:mix], [{:decimal, "~> 1.0", [hex: :decimal, repo: "hexpm", optional: true]}], "hexpm", "b96c400e04b7b765c0854c05a4966323e90c0d11fee0483b1567cda079abb205"},
+  "mime": {:hex, :mime, "1.0.1", "05c393850524767d13a53627df71beeebb016205eb43bfbd92d14d24ec7a1b51", [:mix], [], "hexpm", "8aad5eef6d9d20899918868b10e79fc2dafe72a79102882c2947999c10b30cd9"},
+  "plug": {:hex, :plug, "1.4.3", "236d77ce7bf3e3a2668dc0d32a9b6f1f9b1f05361019946aae49874904be4aed", [:mix], [{:cowboy, "~> 1.0.1 or ~> 1.1", [hex: :cowboy, repo: "hexpm", optional: true]}, {:mime, "~> 1.0", [hex: :mime, repo: "hexpm", optional: false]}], "hexpm", "c1c408c57a1e4c88c365b9aff1198c350e22b765dbb97a460e9e6bd9364c6194"},
+  "ranch": {:hex, :ranch, "1.3.2", "e4965a144dc9fbe70e5c077c65e73c57165416a901bd02ea899cfd95aa890986", [:rebar3], [], "hexpm", "6e56493a862433fccc3aca3025c946d6720d8eedf6e3e6fb911952a7071c357f"},
+  "ssl_verify_hostname": {:hex, :ssl_verify_hostname, "1.0.6", "45866d958d9ae51cfe8fef0050ab8054d25cba23ace43b88046092aa2c714645", [:make], [], "hexpm", "72b2fc8a8e23d77eed4441137fefa491bbf4a6dc52e9c0045f3f8e92e66243b5"},
 }