This roll is failing: #145765
It appears to me like this something in this pub roll has actually changed the text that is output when running pub get --directory
https://dart.googlesource.com/sdk.git/+/63c507642f92f9c12ebb29beb91e3a6b22f89322
It seems not it surrounds the directory with backticks, and it didn't used to.