more cgo checks on ci

Makefile

 GOBIN = $(CURDIR)/build/bin
-GOTEST = go test ./... -p 1
+GOTEST = GODEBUG=cgocheck=2 go test ./... -p 1
 
 GIT_COMMIT ?= $(shell git rev-list -1 HEAD)
 GIT_BRANCH ?= $(shell git rev-parse --abbrev-ref HEAD)
 GIT_TAG    ?= $(shell git describe --tags)
 GOBUILD = env GO111MODULE=on go build -trimpath -ldflags "-X main.gitCommit=${GIT_COMMIT} -X main.gitBranch=${GIT_BRANCH} -X main.gitTag=${GIT_TAG}"
-GO_DBG_BUILD = env CGO_CFLAGS='-O0 -g -DMDBX_BUILD_FLAGS_CONFIG="config.h"' go build -trimpath -tags=debug -ldflags "-X main.gitCommit=${GIT_COMMIT} -X main.gitBranch=${GIT_BRANCH} -X main.gitTag=${GIT_TAG}" -gcflags=all="-N -l"  # see delve docs
+GO_DBG_BUILD = env CGO_CFLAGS='-O0 -g -DMDBX_BUILD_FLAGS_CONFIG="config.h"' GODEBUG=cgocheck=2 go build -trimpath -tags=debug -ldflags "-X main.gitCommit=${GIT_COMMIT} -X main.gitBranch=${GIT_BRANCH} -X main.gitTag=${GIT_TAG}" -gcflags=all="-N -l"  # see delve docs
 
 GO_MAJOR_VERSION = $(shell go version | cut -c 14- | cut -d' ' -f1 | cut -d'.' -f1)
 GO_MINOR_VERSION = $(shell go version | cut -c 14- | cut -d' ' -f1 | cut -d'.' -f2)
@@ -28,7 +28,7 @@ go-version:
 	fi
 
 docker:
-	docker build -t turbo-geth:latest --build-arg git_commit='${GIT_COMMIT}' --build-arg git_branch='${GIT_BRANCH} --build-arg git_tag='${GIT_TAG}' .
+	docker build -t turbo-geth:latest --build-arg git_commit='${GIT_COMMIT}' --build-arg git_branch='${GIT_BRANCH}' --build-arg git_tag='${GIT_TAG}' .
 
 docker-compose:
 	docker-compose up