wire test fail

[drom]

https://github.com/drom/elastic/blob/master/test/basic.js#L11

drom@drom:~/work/github/drom/elastic> verilator --lint-only build/wire.v 
%Error-ASSIGNIN: build/wire.v:16: Assigning to input variable: i_1_dat
%Error: Exiting due to 1 error(s)
%Error: See the manual and http://www.veripool.org/verilator for more assistance.
%Error: Command Failed /usr/local/bin/verilator_bin --lint-only build/wire.v

[drom]

Adding {width: 8} label to the edge helps.

    it('wire', done => {
        const g = fhyper();
        g()({width: 1})(g());
        dump(g, 'wire', done);
    });