End of Life Ruby 3.1 has reached end of life and gets no more fixes. Switch to Ruby 4.0 →

instance method

URI::File#check_user

check_user(user)

# File tmp/rubies/ruby-3.1.3/lib/uri/file.rb, line 71
def check_user(user)
  raise URI::InvalidURIError, "can not set user for file URI"
end

See also #check_password #check_userinfo .build #set_host also in 4.1 · 4.0 · 3.4 · 3.3 · 3.2 · 3.0