fix: update anchor to 0.30.1 and fix breaking changes

- anchor-lang: 0.29.0 -> 0.30.1
- anchor-spl: 0.29.0 -> 0.30.1
- solana-program: 1.16.20 -> 2.x (inferred from anchor-spl)
- Fix token_prog -> token_program naming
- Fix ctx.bumps access for Anchor 0.30.x API
- Update declare_id! with new vanity address

Build now passes successfully.

anchor-program/programs/coop_credits/Cargo.toml

@@ -16,6 +16,5 @@ cpi = ["no-entrypoint"]
 default = []
 
 [dependencies]
-anchor-lang = { version = "0.29.0", features = ["init-if-needed"] }
-anchor-spl = { version = "0.29.0", features = ["metadata"] }
-solana-program = "=1.16.20"
+anchor-lang = { version = "0.30.1", features = ["init-if-needed"] }
+anchor-spl = { version = "0.30.1", features = ["metadata"] }

anchor-program/programs/coop_credits/src/lib.rs

@@ -1,7 +1,7 @@
 use anchor_lang::prelude::*;
 use anchor_spl::token::{self, Burn, Mint, MintTo, Token, TokenAccount};
 
-declare_id!("CoopCredits111111111111111111111111111111111");
+declare_id!("CoopYdmSCUXqtcPPknkEHn4nSFXAiYQFMsH6orLz1XBM");
 
 pub const DECIMALS: u8 = 6;
 
@@ -34,7 +34,7 @@ pub mod coop_credits {
             ErrorCode::Unauthorized
         );
 
-        let seeds = &[b"mint_auth", &[ctx.bumps.mint_auth]];
+        let seeds = &[b"mint_auth", std::slice::from_ref(&ctx.bumps.mint_auth)];
         let signer = &[&seeds[..]];
 
         let cpi = MintTo {
@@ -44,7 +44,7 @@ pub mod coop_credits {
         };
 
         token::mint_to(
-            CpiContext::new_with_signer(ctx.accounts.token_prog.to_account_info(), cpi, signer),
+            CpiContext::new_with_signer(ctx.accounts.token_program.to_account_info(), cpi, signer),
             amount,
         )?;
 
@@ -79,7 +79,7 @@ pub mod coop_credits {
         };
 
         token::burn(
-            CpiContext::new(ctx.accounts.token_prog.to_account_info(), cpi),
+            CpiContext::new(ctx.accounts.token_program.to_account_info(), cpi),
             amount,
         )?;
 
@@ -143,7 +143,7 @@ pub struct Initialize<'info> {
     pub authority: Signer<'info>,
 
     pub system_program: Program<'info, System>,
-    pub token_prog: Program<'info, Token>,
+    pub token_program: Program<'info, Token>,
     pub rent: Sysvar<'info, Rent>,
 }
 
@@ -170,7 +170,7 @@ pub struct MintToUser<'info> {
     pub authority: Signer<'info>,
 
     pub system_program: Program<'info, System>,
-    pub token_prog: Program<'info, Token>,
+    pub token_program: Program<'info, Token>,
 }
 
 #[derive(Accounts)]
@@ -196,7 +196,7 @@ pub struct BurnFromUser<'info> {
     pub user: Signer<'info>,
 
     pub system_program: Program<'info, System>,
-    pub token_prog: Program<'info, Token>,
+    pub token_program: Program<'info, Token>,
 }
 
 #[derive(Accounts)]