`x test rustc_interface --stage 0` is broken again

[jyn514]

I tried this code:

x test --stage 0 rustc_interface

I expected to see this happen: All tests pass.

Instead, this happened:

     Running unittests src/lib.rs (build/x86_64-unknown-linux-gnu/stage0-rustc/x86_64-unknown-linux-gnu/release/deps/rustc_interface-a5db7347e5f1d566)
/home/jyn/src/rust2/build/x86_64-unknown-linux-gnu/stage0-rustc/x86_64-unknown-linux-gnu/release/deps/rustc_interface-a5db7347e5f1d566: error while loading shared libraries: libLLVM-15-rust-1.70.0-nightly.so: cannot open shared object file: No such file or directory
error: test failed, to rerun pass `-p rustc_interface --lib`

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HEAD is branched from 13afbda

[onur-ozkan]

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