Rust 1.45.0
You can use this tarball for the next major release of Rust (1.46.0), if Rust 1.45.1 isn't released.
To use them, do the following.
$ mkdir -p /path/to/rust-1.45.0/build/cache/2020-07-16/
$ cp *.tar.xz /path/to/rust-1.45.0/build/cache/2020-07-16/