RUSTSEC-2018-0022 — Use of uninitialized memory in temporary

Affected: crates.io: temporary

Uninit memory is used as a RNG seed in temporary

The following function is used as a way to get entropy from the system, which does operations on and exposes uninit memory, which is UB.

```rust fn random_seed(_: &Path, _: &str) -> [u64; 2] { use std::mem::uninitialized as rand; unsafe { [rand::<u64>() ^ 0x12345678, rand::<u64>() ^ 0x87654321] } } ```

This has been resolved in the 0.6.4 release.

The crate is not intended to be used outside of a testing environment.

For a general purpose crate to create temporary directories, [`tempfile`](https://crates.io/crates/tempfile) is an alternative for this crate.

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RUSTSEC-2018-0022 — Use of uninitialized memory in temporary