Some programs, such as cargo, need /dev/null at runtime
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for dir in ["proc", "sys", "dev"] { let tmp = tmp_dir.join(dir); std::fs::create_dir_all(&tmp)?; if let Ok(m) = mount::Mount::bind(Path::new("/").join(dir), &tmp) { std::mem::forget(m) } }
for dir in ["proc", "sys", "dev"] {
let tmp = tmp_dir.join(dir);
std::fs::create_dir_all(&tmp)?;
if let Ok(m) = mount::Mount::bind(Path::new("/").join(dir), &tmp) {
std::mem::forget(m)
}