Clap does not compile

[ghost]

Please complete the following tasks

• I have searched the discussions
• I have searched the existing issues

Rust Version

1.55

Clap Version

3.0-beta.5

Minimal reproducible code

use clap::*;

/// NEAR Indexer Example
/// Watches for stream of blocks from the chain
#[derive(Debug,Clap)]
#[clap(version = "0.1", author = "Near Inc. <hello@nearprotocol.com>")]
pub(crate) struct Opts {
    /// Sets a custom config dir. Defaults to ~/.near/
    #[clap(short, long)]
    pub home_dir: Option<std::path::PathBuf>,
}

fn main() {
    println!("Hello, world!");
}

Steps to reproduce the bug with the above code

cargo run --release

Actual Behaviour

error: cannot find derive macro `Clap` in this scope
 --> src/main.rs:5:16
  |
5 | #[derive(Debug,Clap)]
  |                ^^^^

error: cannot find attribute `clap` in this scope
 --> src/main.rs:6:3
  |
6 | #[clap(version = "0.1", author = "Near Inc. <hello@nearprotocol.com>")]
  |   ^^^^

error: cannot find attribute `clap` in this scope
 --> src/main.rs:9:7
  |
9 |     #[clap(short, long)]
  |       ^^^^

warning: unused import: `clap::*`
 --> src/main.rs:1:5
  |
1 | use clap::*;
  |     ^^^^^^^
  |
  = note: `#[warn(unused_imports)]` on by default

error: aborting due to 3 previous errors; 1 warning emitted

Expected Behaviour

Hello world

Additional Context

The answer here doesn't make sense #2910

3.0.0-beta.2 does not compile now
3.0.0-beta.4 does not compile now
3.0.0-beta.5 does not compile now

3.0.0-beta.2 compiled last month

Debug Output

No response

[pksunkara]

You would need to upgrade to beta.5 and change the code accordingly since we have breaking changes.

[ghost]

Upgrade to what? I just showed you that the latest version does not compile

[ghost]

Nevermind change the code accordingly means I have to go and find what that means.

It'd be great if you can point to the place where I can see exactly what is breaking instead of looking through source code.

[pksunkara]

https://github.com/clap-rs/clap/blob/master/CHANGELOG.md