End of Life Ruby 3.0 has reached end of life and gets no more fixes. Switch to Ruby 4.0 →

instance method

URI::File#check_userinfo

check_userinfo(user)

# File tmp/rubies/ruby-3.0.5/lib/uri/file.rb, line 66
def check_userinfo(user)
  raise URI::InvalidURIError, "can not set userinfo for file URI"
end

See also #check_user #set_host #check_password #set_password also in 4.1 · 4.0 · 3.4 · 3.3 · 3.2 · 3.1