writeln(Range) fails on 2.058

[simendsjo]

import std.array;
import std.stdio;

struct S
{
    string txt;
    void popFront()
    {
        txt.popFront();
    }

    @property dchar front()
    {
        return txt.front;
    }

    @property bool empty()
    {
        return txt.empty;
    }
}

void main() {
    S s;
    writeln(s); // range.d(295): Error: static assert  "Cannot put a S 
into a LockingTextWriter"
}

I haven't read the whole changelog yet, so this might not be a bug. 
Pretty convenient when it worked though..