error: could not find when-cli in registry crates-io with version *

[khushmeeet]

When trying to install when-cli using cargo, I am getting this output

❯ cargo install when-cli
    Updating crates.io index
error: could not find `when-cli` in registry `crates-io` with version `*`

Can you let me know, what am I doing wrong?

[mitsuhiko]

I cannot answer this question. I assume this might have been a temporary caching issue on crates.io. I cannot reproduce this. Please reopen if this still happens.

[ldwSpirent]

I had the same problem... I think you have to switch to the nightly rust toolchain.

• Unable to specify edition2021 in order to use unstable packages in Rust
  • rustup default nightly && rustup update

Note also that you may need the to run the toolchain with this command on Ubuntu:

• curl --proto '=https' --tlsv1.2 -sSf https://sh.rustup.rs | sh

I had to update the toolchain as described above, then make sure that my path was picking up the right toolchain.

This is kind of a hack, but I had to install with this command after updating the toolchain:

• PATH=~/.rustup/toolchains/nightly-x86_64-unknown-linux-gnu/bin:${PATH} cargo --verbose install when-cli