Using DMD 2.062 with no command line arguments other than the source file in question

I have the following (expected valid) code:

---

import std.stdio, std.file, std.algorithm, std.conv, std.range;

void main() {
	dirEntries("data", "*.out", SpanMode.shallow)
		.map!(e => File(e.name).byLine()
			.map!(line => text(line))() // compile error
		)()
		.array()
		.nWayUnion() // line 9
		.copy(stdout.lockingTextWriter);
}

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Which produces errors. Error 1 is a compile-time failure producing the following message:

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C:\D\dmd2\windows\bin\..\..\src\phobos\std\range.d(6695): Error: static assert  "Cannot move front of a range with a postblit and an rvalue front."
C:\D\dmd2\windows\bin\..\..\src\phobos\std\container.d(3797):        instantiated from here: moveFront!(MapResult!(__lambda4, ByLine!(char, char))[])
C:\D\dmd2\windows\bin\..\..\src\phobos\std\algorithm.d(10526):        instantiated from here: BinaryHeap!(MapResult!(__lambda4, ByLine!(char, char))[], compFront)
C:\D\dmd2\windows\bin\..\..\src\phobos\std\algorithm.d(10562):        instantiated from here: NWayUnion!("a < b", MapResult!(__lambda4, ByLine!(char, char))[])
D:\[snip]\src\reducedCase.d(9):        instantiated from here: nWayUnion!("a < b", MapResult!(__lambda4, ByLine!(char, char))[])

---

If I change the code to this:

---

import std.stdio, std.file, std.algorithm, std.conv, std.range;

void main() {
	dirEntries("data", "*.out", SpanMode.shallow)
		.map!(e => File(e.name).byLine()
			.map!text() // Compiles, runtime error
		)()
		.array()
		.nWayUnion() // line 9
		.copy(stdout.lockingTextWriter);
}

---

Then the code compiles, but produces a runtime error (when files are in data directory and named *.out):

object.Error: Access Violation
----------------
0x00429674
0x004294FF
0x7730B459 in LdrRemoveLoadAsDataTable
0x7730B42B in LdrRemoveLoadAsDataTable
0x772C0133 in KiUserExceptionDispatcher
0x0018F6E8
0x0018F738
----------------


Specifically, these errors apply to MapResult!(lambda, ByLine!(char, char)). For instance, using a string[][] as an array and applying a .map!text() as above, there is no problem for either case.

---

import std.stdio, std.file, std.algorithm, std.conv, std.range;

void main() {
	[["abc", "cbd"], ["dce", "efg"]]
		.map!(e =>
			//e.map!text()               // OK
			e.map!(line => text(line))() // OK
		)()
		.array()
		.nWayUnion()
		.copy(stdout.lockingTextWriter);
}

---