Segmentation fault when assigning several cbit values

The following code 
``` c
int main() {
    qbit q[2];
    cbit mres[2];
    mres[0] = MeasZ(q[0]);
    mres[1] = MeasZ(q[1]);
    if( mres[0] == 1 ) { Z(q[0]); }
    if( mres[1] == 1) { X(q[1]); }
    return 0;
}
```

casues segementation fault when running both `scaffold.sh` and `scaffold.sh -f` on `epiqc/scaffcc` Docker image. 