Directory creation: dfference in behaviour between MacOS and Windows

The following program succeeds on MacOS but fails on Windows 10:

use git2::Repository;
use std::env;

fn main() {
    let path = env::current_dir().unwrap();
    let path = path.join("foo");
    let path = path.join("bar");
    let url = "https://github.com/alexcrichton/git2-rs";
    match Repository::clone(url, path) {
        Ok(repo) => repo,
        Err(e) => panic!("failed to clone: {}", e),
    };
}

Error on Windows is:

thread 'main' panicked at 'failed to clone: failed to make directory 'C:\Users\myuser.CORP\Code\pathtest\foo\bar': The system cannot find the path specified.
; class=Os (2)', src\main.rs:11:19
note: run with `RUST_BACKTRACE=1` environment variable to display a backtrace.
error: process didn't exit successfully: `target\debug\pathtest.exe` (exit code: 101)

Seemingly this is due to clone recursively creating directories on MacOS but only being able to create single directories on Windows.

Start with Repository::clone and reproduce the example on Windows 10 using the nested foo/bar destination. Trace how the destination directories are created and compare the Windows and macOS behavior; done means cloning succeeds when the parent directories do not already exist.