Run linters in vendor mode

.golangci.yml

@@ -31,6 +31,16 @@ run:
   # autogenerated files. If it's not please let us know.
   skip-files:
 
+  # by default isn't set. If set we pass it to "go list -mod={option}". From "go help modules":
+  # If invoked with -mod=readonly, the go command is disallowed from the implicit
+  # automatic updating of go.mod described above. Instead, it fails when any changes
+  # to go.mod are needed. This setting is most useful to check that go.mod does
+  # not need updates, such as in a continuous integration and testing system.
+  # If invoked with -mod=vendor, the go command assumes that the vendor
+  # directory holds the correct copies of dependencies and ignores
+  # the dependency descriptions in go.mod.
+  modules-download-mode: vendor
+
 
 # output configuration options
 output:

Makefile

@@ -7,7 +7,7 @@
 .PHONY : docker-apps docker-bin docker-volume 
 .PHONY : docker-run docker-stop     
 
-OPTS?=GO111MODULE=on 
+OPTS?=GO111MODULE=on
 DOCKER_IMAGE?=skywire-runner # docker image to use for running skywire-visor.`golang`, `buildpack-deps:stretch-scm`  is OK too
 DOCKER_NETWORK?=SKYNET 
 DOCKER_NODE?=SKY01
@@ -45,7 +45,7 @@ rerun: stop
 lint: ## Run linters. Use make install-linters first	
 	${OPTS} golangci-lint run -c .golangci.yml ./...
 	# The govet version in golangci-lint is out of date and has spurious warnings, run it separately
-	${OPTS} go vet -all ./...
+	${OPTS} go vet -mod=vendor -all ./...
 
 vendorcheck:  ## Run vendorcheck
 	GO111MODULE=off vendorcheck ./internal/...