splitter, compilation issue

[sigod via Digitalmars-d-learn]

Here's simple code:

        import std.algorithm;
        import std.array;
        import std.file;
        
        void main(string[] args)
        {
                auto t = args[1].readText()
                        .splitter('\n')
                        .filter!(e => e.length)
                        .split("---")
                ;
        }
Looks like it should work, but it won't compile. DMD 2.068.2 
fails with this error:

	Error: template std.algorithm.iteration.splitter cannot deduce 
function from argument types !()(FilterResult!(__lambda2, 
Result), string), candidates are:
        ...
	Error: template instance 
std.array.split!(FilterResult!(__lambda2, Result), string) error 
instantiating

It compiles if I insert `.array` before `.split(...`.

Am I missing something? Or it's a bug? I've tried to make a brief 
search in the bug tracker, but didn't found anything.

P.S. dpaste gives very strange error:

        /d712/f815.d(8): Error: unterminated character constant
        /d712/f815.d(9): Error: unterminated character constant
        ... and so on