A converting problem in using "among" with arrays

[pascal111 via Digitalmars-d-learn]

I next code, we have a data type problem 
"54.among(to!uint[10](y)).writeln;":

module main;
import std.stdio;
import std.string;
import std.conv;
import dcollect;
import std.math;
import std.algorithm;

    int main(string[] args)
    {
        int[] x=[23, 34,-88, 54, -90, -34];

        auto y=x.filter!(a=>a<0);

        foreach(i; y)
            i.write(", ");

        54.among(to!uint[10](y)).writeln;

        return 0;
    }

Error message:
"hello.d|19|error: only one index allowed to index void|"