struct takes 0 lifetime arguments but 1 lifetime argument was supplied expected 0 lifetime arguments when using declare_program

[jim4067]

When using the declare_program! with the Kamino Lending program -> https://github.com/Kamino-Finance/klend, I can't get the project to build due to the error

struct takes 0 lifetime arguments but 1 lifetime argument was supplied expected 0 lifetime arguments

What I've tried,

• convert the IDL to the new spec but it still fails with the same error
• switching solana version to 1.18.17

For quick reproducibility,
old idl -> https://gist.github.com/jim4067/eacd867f28d3761ba501cf7b31e3b93b

new idl -> https://gist.github.com/jim4067/9eaf7c91387deb3e79acc1700e0a456d

Anchor CLI - 0.30.1
Solana CLI - 2.0.22

[acheroncrypto]

This is because refresh_reserves_batch instruction doesn't have any accounts:

{
  "name": "refresh_reserves_batch",
  "discriminator": [144, 110, 26, 103, 162, 204, 252, 147],
  "accounts": [],
  "args": [
    {
      "name": "skip_price_updates",
      "type": "bool"
    }
  ]
}

Essentially the same issue as #1628, but with declare_program! instead of a dependency with cpi feature.

It should be quite easy to fix this for declare_program! since we already know the amount of accounts the instruction expects (which is not the case for the regular dependency import with cpi feature enabled).

Thanks for the report! I'll fix this this week.