Travis jobs failing on Intel for go1.11.X and 1.12.X

[kishorkunal-raj]

Hi All,
I am running jobs on travis-ci and found that jobs are failing for go1.11.X and 1.12.X. Below are the logs

$ git clone --depth=10 --branch=master https://github.com/kishorkunal-raj/sse.git kishorkunal-raj/sse
$ travis_export_go 1.11.x github.com/kishorkunal-raj/sse
0.01s0.07s$ travis_setup_go
go version go1.11.13 linux/amd64
$ export GOPATH="/home/travis/gopath"
$ export PATH="/home/travis/gopath/bin:/home/travis/.gimme/versions/go1.11.13.linux.amd64/bin:/home/travis/bin:/home/travis/bin:/home/travis/.local/bin:/usr/local/lib/jvm/openjdk11/bin:/opt/pyenv/shims:/home/travis/.phpenv/shims:/home/travis/perl5/perlbrew/bin:/home/travis/.nvm/versions/node/v8.12.0/bin:/home/travis/.rvm/gems/ruby-2.5.3/bin:/home/travis/.rvm/gems/ruby-2.5.3@global/bin:/home/travis/.rvm/rubies/ruby-2.5.3/bin:/home/travis/gopath/bin:/home/travis/.gimme/versions/go1.11.1.linux.amd64/bin:/usr/local/maven-3.6.3/bin:/usr/local/cmake-3.12.4/bin:/usr/local/clang-7.0.0/bin:/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin:/snap/bin:/home/travis/.rvm/bin:/home/travis/.phpenv/bin:/opt/pyenv/bin:/home/travis/.yarn/bin"
$ export GO111MODULE="auto"
$ gimme version
v1.5.4
$ go version
go version go1.11.13 linux/amd64
go.env
$ go env
install
8.96s$ travis_install_go_dependencies 1.11.x -v
4.59s$ go test -v -covermode=count -coverprofile=coverage.out

github.com/stretchr/testify/assert

../../stretchr/testify/assert/assertions.go:1703:5: undefined: errors.Is
../../stretchr/testify/assert/assertions.go:1726:6: undefined: errors.Is
../../stretchr/testify/assert/assertions.go:1749:5: undefined: errors.As
../../stretchr/testify/assert/assertions.go:1766:7: undefined: errors.Unwrap
../../stretchr/testify/assert/assertions.go:1770:7: undefined: errors.Unwrap
FAIL github.com/kishorkunal-raj/sse [build failed]
The command "go test -v -covermode=count -coverprofile=coverage.out" exited with 2.

Done. Your build exited with 1.

Please help me out to fix it.