import std.algorithm;

void main()
{
	auto m = map!"a"([1,2,3]);
	auto x = move(m);
}

bails out with:

C:\dmd2\windows\bin\..\..\src\phobos\std\algorithm.d(1400): Error: function std.
algorithm.map!("a").map!(int[]).map is a nested function and cannot be accessed
from move

It also hits the following code:

import std.range, std.algorithm;

void main()
{
	int[] arr = [ 1, 2, 3, 4];
	auto s = assumeSorted(map!"a"(arr));
	assert(equal(s.lowerBound(3),[1, 2]));
}

The problem is that move is called inside release() in SortedRange template.

In my project I use sorted array of intervals [a,b] for codepoint sets, so for now I just ripped off that release() function in SortedRange.
Still some cleaner soultion for this general problem of map is needed.