language: go

sudo: false

go:
  - 1.4
  - 1.5
  - 1.6
  - 1.7
  - 1.8
  - 1.9

before_install:
  - go get -t ./...

script:
  - GOMAXPROCS=4 GORACE="halt_on_error=1" go test -race -v ./...