If the directory passed to mkdirRecurse ends with a backslash then an exception when the path provided ends with a backslash.

std.file.FileException: C:\fake\here\: Cannot create a file when that file already exists.

import std.file;

void main() {
	auto dir = "C:\\fake\\here\\";

	mkdirRecurse(dir);
}

The directories are correctly created. The code below works without throwing an exception.

import std.file;

void main() {
	auto dir = "C:\\fake\\here";

	mkdirRecurse(dir);
}