Fails to pass tests (master and go18)

[dxlbnl]

~/g/s/g/d/gotrace (go18|✔) ❯❯❯ git checkout master
Switched to branch 'master'
Your branch is up-to-date with 'origin/master'.
~/g/s/g/d/gotrace (master|✔) ❯❯❯ go test
open /home/dexter/go/src/github.com/divan/gotrace/examples/hello01.go: no such file or directory
--- FAIL: TestExamples (0.00s)
        main_test.go:30: Testing examples/hello01.go
        main_test.go:34: examples/hello01.go couldn't rewrite source code: couldn't load packages due to errors: (unnamed)
FAIL
exit status 1
FAIL    github.com/divan/gotrace        0.004s
~/g/s/g/d/gotrace (master|✔) ❯❯❯ go build
~/g/s/g/d/gotrace (master|✔) ❯❯❯ go test
open /home/dexter/go/src/github.com/divan/gotrace/examples/hello01.go: no such file or directory
--- FAIL: TestExamples (0.00s)
        main_test.go:30: Testing examples/hello01.go
        main_test.go:34: examples/hello01.go couldn't rewrite source code: couldn't load packages due to errors: (unnamed)
FAIL
exit status 1
FAIL    github.com/divan/gotrace