Bump rust version

.github/workflows/linter.yml

@@ -13,6 +13,7 @@ name: Clippy & fmt
 env:
   RUST_FMT: nightly-2023-04-01
   RUST_VERSION: "1.66"
+  RUST_VERSION_TESTING_LIBRARY: "1.67"
   CARGO_CONCORDIUM_VERSION: "3.0.0"
 
 jobs:
@@ -129,7 +130,7 @@ jobs:
       - name: Install toolchain
         uses: actions-rs/toolchain@v1
         with:
-          toolchain: ${{ env.RUST_VERSION }}
+          toolchain: ${{ env.RUST_VERSION_TESTING_LIBRARY }}
 
       - name: Install Wasm target
         run: rustup target install wasm32-unknown-unknown
@@ -179,7 +180,7 @@ jobs:
       - name: Install toolchain
         uses: actions-rs/toolchain@v1
         with:
-          toolchain: ${{ env.RUST_VERSION }}
+          toolchain: ${{ env.RUST_VERSION_TESTING_LIBRARY }}
 
       - name: Install Wasm target
         run: rustup target install wasm32-unknown-unknown
@@ -837,7 +838,7 @@ jobs:
         uses: actions-rs/toolchain@v1
         with:
           profile: minimal
-          toolchain: ${{ env.RUST_VERSION }}
+          toolchain: ${{ env.RUST_VERSION_TESTING_LIBRARY }}
           target: ${{ matrix.target }}
           override: true
 

README.md

@@ -50,7 +50,7 @@ Changes to any of the packages must be such that
 - ```cargo clippy --all``` produces no warnings
 - ```rustfmt``` makes no changes.
 
-Everything in this repository should build with rust version 1.66 however the `fmt` tool must be from a nightly release since some of the configuration options are not stable. One way to run the `fmt` tool is
+Everything in this repository should build with rust version 1.67 however the `fmt` tool must be from a nightly release since some of the configuration options are not stable. One way to run the `fmt` tool is
 ```
 cargo +nightly-2023-04-01 fmt
 ```

examples/auction/src/lib.rs

@@ -169,7 +169,7 @@ fn auction_bid(
 
 /// View function that returns the content of the state
 #[receive(contract = "auction", name = "view", return_value = "State")]
-fn view<'a, 'b>(_ctx: &'a ReceiveContext, host: &'b Host<State>) -> ReceiveResult<&'b State> {
+fn view<'b>(_ctx: &ReceiveContext, host: &'b Host<State>) -> ReceiveResult<&'b State> {
     Ok(host.state())
 }
 

examples/cis3-nft-sponsored-txs/tests/tests.rs

@@ -309,7 +309,7 @@ fn initialize_contract_with_alice_tokens() -> (Chain, ContractAddress, ContractI
 
 /// Setup chain and contract.
 ///
-/// Also creates the two accounts, Alice and Bob.
+/// Also creates the two accounts, Alice, and Bob.
 ///
 /// Alice is the owner of the contract.
 fn initialize_chain_and_contract() -> (Chain, ContractAddress) {