try adding 2 go versions

circle.yml

@@ -1,44 +1,54 @@
 version: 2
+
+shared: &shared
+  environment: # environment variables for the build itself
+    GOPATH: /go
+    TEST_RESULTS: /tmp/test-results
+    TEST_OUT: $TEST_RESULTS/
+
+  steps: # steps that comprise the `build` job
+    - checkout # check out source code to working directory
+    - run: mkdir -p $TEST_RESULTS # create the test results directory
+
+    - restore_cache: # restores saved cache if no changes are detected since last run
+        keys:
+        - v1-pkg-cache
+
+    - run:
+      name: Load dependencies
+      command: go get github.com/mattn/goveralls && go get github.com/go-ini/ini && go get gopkg.in/yaml.v2
+    - run:
+      name: Load nix-amer
+      command: go get github.com/xdrm-brackets/nix-amer
+    - run:
+      name: Unit tests
+      command: go test -v -cover -race -coverprofile=$COVER_PROFILE github.com/xdrm-brackets/nix-amer/... | tee $TEST_RESULTS/out
+    - run:
+      name: go fmt
+      command: go fmt github.com/xdrm-brackets/nix-amer/...
+    - run:
+      name: go vet
+      command: go vet github.com/xdrm-brackets/nix-amer/...
+
+
+    - store_artifacts: # Upload test summary for display in Artifacts
+      path: /tmp/test-results
+      destination: raw-test-output
+
+    - store_test_results: # Upload test results for display in Test Summary
+      path: /tmp/test-results
+
 jobs:
-  build: # runs not using Workflows must have a `build` job as entry point
+  latest:
     docker:
-      - image: circleci/golang
+        - image: circleci/golang
+    - run:
+      name: Update coveralls.io
+      command: /go/bin/goveralls -coverprofile=$COVER_PROFILE -service=circle-ci -repotoken=$COVERALLS_TOKEN
+    <<: *shared
 
-    environment: # environment variables for the build itself
+  go-1.10.4:
-      GOPATH: /go
+    docker:
-      TEST_RESULTS: /tmp/test-results
+        - image: circleci/golang:1.10.4
-      COVER_PROFILE: /tmp/coverage.out
+    <<: *shared
 
-    steps: # steps that comprise the `build` job
-      - checkout # check out source code to working directory
-      - run: mkdir -p $TEST_RESULTS # create the test results directory
-
-      - restore_cache: # restores saved cache if no changes are detected since last run
-          keys:
-            - v1-pkg-cache
-
-      - run:
-          name: Load dependencies
-          command: go get github.com/mattn/goveralls && go get github.com/go-ini/ini && go get gopkg.in/yaml.v2
-      - run:
-          name: Load nix-amer
-          command: go get github.com/xdrm-brackets/nix-amer
-      - run:
-          name: Unit tests
-          command: go test -v -cover -race -coverprofile=$COVER_PROFILE github.com/xdrm-brackets/nix-amer/... | tee $TEST_RESULTS/out
-      - run:
-          name: go fmt
-          command: go fmt github.com/xdrm-brackets/nix-amer/...
-      - run:
-          name: go vet
-          command: go vet github.com/xdrm-brackets/nix-amer/...
-      - run:
-          name: Update coveralls.io
-          command: /go/bin/goveralls -coverprofile=$COVER_PROFILE -service=circle-ci -repotoken=$COVERALLS_TOKEN
-
-      - store_artifacts: # Upload test summary for display in Artifacts
-          path: /tmp/test-results
-          destination: raw-test-output
-
-      - store_test_results: # Upload test results for display in Test Summary
-          path: /tmp/test-results