rubber hangs because nonstopmode fails

using rubber revision 416

$ rubber -c 'set arguments lol' -f -d beamer.tex
compiling beamer.tex...

rubber hangs. pressing ctrl+d makes rubber continue and print this line

Could not run pdflatex.

invoking rubber with -v shows the problem

$ rubber -v -c 'set arguments lol' -f -d beamer.tex
compiling beamer.tex...
executing: pdflatex l o l \nonstopmode \input{beamer.tex}

again, pressing ctrl+d lets rubber continue with these lines

Could not run pdflatex.
There were errors compiling beamer.tex.

Rubber hangs because pdflatex drops to a prompt because \nonstopmode has not been executed yet.

I think a fix would be to invoke pdflatex (or latex) using the "-interaction nonstopmode" option, or to make sure that /nonstopmode is always at the beginning.

I agree that it is an error to invoke rubber using -c 'set arguments lol', but that error should not cause rubber to hang.