[BUG] Building the entire workspace fails (missing req.)

[NukeManDan]

[BUG] Building the entire workspace fails (missing req.)

[NukeManDan]

https://book.getfoundry.sh/getting-started/installation is required. I don't see that listed in the top level README or https://dev.risczero.com/api/zkvm/quickstart and as it's specific to those working with Ethereum (not exclusively RISC Zero) I would hope things needing it could be behind a feature flag.

After install forge I get to:

   Compiling risc0-build-kernel v0.20.1 (/risc0/risc0/build_kernel)
error: failed to run custom build command for `fibonacci-methods v0.1.0 (/home/nuke/git/risc0/examples/profiling/methods)`

Caused by:
 process didn't exit successfully: `/risc0/target/release/build/fibonacci-methods-af14d1a24f6f9d54/build-script-build` (exit status: 255)
...........
error: failed to run custom build command for `risc0-zkvm-methods v0.20.1 (/home/nuke/git/risc0/risc0/zkvm/methods)`

Caused by:
  process didn't exit successfully: `/home/nuke/git/risc0/target/release/build/risc0-zkvm-methods-ba6a2f6cbce69e67/build-script-build` (exit status: 255)
  --- stderr
  The 'risc0' toolchain could not be found.
  To install the risc0 toolchain, use cargo-risczero.
  For example:
    cargo binstall cargo-risczero
    cargo risczero install

I understand I need the toolchain installed before being able to build here, but my goal is to build the whole workspace, including the toolchain itself.

With cargo install --path risc0/cargo-risczero/ && cargo risczero install I see that process downloads&installs a specific rust toolchain from github.

I would like a way to have install the tool and required rust toolchain from the repo I have locally. I suppose it's not a big deal to binstall and use that to install the required toolchain though. 🤔

[weikengchen]

I think the readme is not comprehensive enough. But the recommended way so far for the majority of the users is to use binstall since dependencies can be tricky.