Cannot install with bundler or with gem -P

[ololobus]

I'm trying to install another gem (https://github.com/abonas/kubeclient), which has a dependency on ffi-compiler. However, bundler says:

The gem ffi-compiler-1.0.1 can't be installed because the security policy didn't allow it, with the message: no digests provided (probable bug)

Actually, if I try install it with gem install -P (trust policy) it also fails:

$ gem install ffi-compiler -P MediumSecurity
Fetching ffi-compiler-1.0.1.gem
ERROR:  While executing gem ... (Gem::Security::Exception)
    no digests provided (probable bug)

and even with NoSecurity

$ gem install ffi-compiler -P NoSecurity 
WARNING:  email:steve (at) advancedcontrol.com.au is not trusted for ffi-compiler-1.0.1
ERROR:  While executing gem ... (Gem::Security::Exception)
    missing digest for metadata.gz

Probably ffi-compiler gem should be re-uploaded with a fresh certificate / digest.

Bundler version 2.2.15
ruby 3.0.1p64 (2021-04-05 revision 0fb782ee38) [x86_64-darwin20]
gem 3.2.15

[davispuh]

Yeah that certificate expired in 2017. I removed it and published ffi-compiler 1.3.1 (unsigned)