@args --debugger

  info: breakpoint reached

  nix-repl> :quit
  error:
         … while evaluating the file '$TEST_DATA/regression_l592.nix':

         … while calling the 'seq' builtin
           at $TEST_DATA/regression_l592.nix:1:15:
              1| let x = 4; in __seq x (with x; (x: builtins.break x) 1)
               |               ^
              2|

         … while calling the 'break' builtin
           at $TEST_DATA/regression_l592.nix:1:36:
              1| let x = 4; in __seq x (with x; (x: builtins.break x) 1)
               |                                    ^
              2|

         error: breakpoint reached