Are there updated install steps available?

[nlfiedler]

The tool doesn't seem to build successfully when using the instructions given in the README.

brew install cmake
rustup install nightly-2022-08-03
rustup component add rustc-dev llvm-tools-preview --toolchain nightly-2022-08-03
cargo +nightly-2022-08-03 install --git https://github.com/rust-lang/rust-semverver

The build fails with several similar errors:

error[E0658]: `let...else` statements are unstable
  --> /Users/nfiedler/.cargo/registry/src/github.com-1ecc6299db9ec823/cargo-0.67.1/src/cargo/sources/git/known_hosts.rs:92:5
   |
92 | /     let Some(host_key) = cert.as_hostkey() else {
93 | |         // Return passthrough for TLS X509 certificates to use whatever validation
94 | |         // was done in git2.
95 | |         return Ok(CertificateCheckStatus::CertificatePassthrough)
96 | |     };
   | |______^
   |
   = note: see issue #87335 <https://github.com/rust-lang/rust/issues/87335> for more information
   = help: add `#![feature(let_else)]` to the crate attributes to enable

Any help would be appreciated, thank you.

[JohnTitor]

That's because Cargo 0.67.1 is used, we have to pin it to 0.67.0 but it's vulnerable.
Anyway, I wouldn't recommend using this crate currently as it doesn't work nicely on some code and depends on the save-analysis feature which is planned to be removed in the near future. I haven't used it much, but maybe https://github.com/obi1kenobi/cargo-semver-checks is more useful, it detects semver failures reading rustdoc outputs.