What version of Go are you using (go version)?

go version go1.11.3 linux/amd64

Does this issue reproduce with the latest release?

yes

What did you do?

My cgo project supports module.
The project depends on a c static library.
After a successful build, I updated the static library, then "go build" again.

What did you expect to see?

A rebuild to use the new static library.

What did you see instead?

I looks the "go build" is finished in half a second by using cache.
The new static library is not used.