travis/Makefile: output debug information

.travis.yml

@@ -21,6 +21,11 @@ install:
   - go get github.com/mattn/goveralls
   - go get github.com/mitchellh/gox
   - gox -build-toolchain -os "$GOX_OS"
+  - go version
+  - go env
+  - make env
+  - make goenv
+  - make list
 
 script:
   - make restic

Makefile

@@ -60,3 +60,10 @@ all.cov: .gopath
 
 env:
 	@echo export GOPATH=\"$(GOPATH)\"
+
+goenv:
+	go env
+
+list: .gopath
+	cd $(BASEPATH) && \
+		go list ./...