The nightly build is currently failing due to incompatible types.
I had a quick look and it seems to be because currently two versions of the ethereum-types crate (0.15.1 and 0.14.1) are used and these in turn use different versions of the primitive-types crate (0.12.2 and 0.13.1).
Did not investigate further for now. Maybe it will also solve itself in a couple of days.
The nightly build is currently failing due to incompatible types. I had a quick look and it seems to be because currently two versions of the ethereum-types crate (0.15.1 and 0.14.1) are used and these in turn use different versions of the primitive-types crate (0.12.2 and 0.13.1). Did not investigate further for now. Maybe it will also solve itself in a couple of days.