Bump MSRV to 1.60

- `blake2b_simd 1.0.1` raised its MSRV to 1.59.
- `proptest 1.1.0` added a dependency on `unarray` which has an implicit
  MSRV of 1.60.

.github/workflows/bench.yml

@@ -16,7 +16,7 @@ jobs:
       - uses: actions/checkout@v3
       - uses: actions-rs/toolchain@v1
         with:
-          toolchain: 1.56.1
+          toolchain: 1.60.0
           override: true
       - name: Run benchmark
         run: cargo bench -- --output-format bencher | tee output.txt

.github/workflows/ci.yml

@@ -22,7 +22,7 @@ jobs:
       - uses: actions/checkout@v3
       - uses: actions-rs/toolchain@v1
         with:
-          toolchain: 1.56.1
+          toolchain: 1.60.0
           override: true
       - name: Run tests
         uses: actions-rs/cargo@v1
@@ -43,7 +43,7 @@ jobs:
       - uses: actions/checkout@v3
       - uses: actions-rs/toolchain@v1
         with:
-          toolchain: 1.56.1
+          toolchain: 1.60.0
           override: true
       - name: Add target
         run: rustup target add ${{ matrix.target }}
@@ -79,7 +79,7 @@ jobs:
       - uses: actions/checkout@v3
       - uses: actions-rs/toolchain@v1
         with:
-          toolchain: 1.56.1
+          toolchain: 1.60.0
           override: true
       - name: cargo build
         uses: actions-rs/cargo@v1
@@ -124,7 +124,7 @@ jobs:
       - uses: actions/checkout@v3
       - uses: actions-rs/toolchain@v1
         with:
-          toolchain: 1.56.1
+          toolchain: 1.60.0
           override: true
       - name: cargo fetch
         uses: actions-rs/cargo@v1
@@ -147,7 +147,7 @@ jobs:
       - uses: actions/checkout@v3
       - uses: actions-rs/toolchain@v1
         with:
-          toolchain: 1.56.1
+          toolchain: 1.60.0
           override: true
       - run: rustup component add rustfmt
       - uses: actions-rs/cargo@v1

.github/workflows/lints-stable.yml

@@ -5,20 +5,20 @@ on: pull_request
 
 jobs:
   clippy:
-    name: Clippy (1.56.1)
+    name: Clippy (1.60.0)
     timeout-minutes: 30
     runs-on: ubuntu-latest
 
     steps:
       - uses: actions/checkout@v3
       - uses: actions-rs/toolchain@v1
         with:
-          toolchain: 1.56.1
+          toolchain: 1.60.0
           components: clippy
           override: true
       - name: Run clippy
         uses: actions-rs/clippy-check@v1
         with:
-          name: Clippy (1.56.1)
+          name: Clippy (1.60.0)
           token: ${{ secrets.GITHUB_TOKEN }}
           args: --all-features --all-targets -- -D warnings

README.md

@@ -4,7 +4,7 @@
 
 ## Minimum Supported Rust Version
 
-Requires Rust **1.56.1** or higher.
+Requires Rust **1.60** or higher.
 
 Minimum supported Rust version can be changed in the future, but it will be done with a
 minor version bump.

halo2/Cargo.toml

@@ -5,7 +5,7 @@ authors = [
     "Jack Grigg <[email protected]>",
 ]
 edition = "2021"
-rust-version = "1.56.1"
+rust-version = "1.59"
 description = "[BETA] Fast zero-knowledge proof-carrying data implementation with no trusted setup"
 license = "MIT OR Apache-2.0"
 repository = "https://github.com/zcash/halo2"

halo2_gadgets/Cargo.toml

@@ -9,7 +9,7 @@ authors = [
     "Kris Nuttycombe <[email protected]>",
 ]
 edition = "2021"
-rust-version = "1.56.1"
+rust-version = "1.59"
 description = "Reusable gadgets and chip implementations for Halo 2"
 license = "MIT OR Apache-2.0"
 repository = "https://github.com/zcash/halo2"

halo2_gadgets/README.md

@@ -1,6 +1,6 @@
 # halo2_gadgets [![Crates.io](https://img.shields.io/crates/v/halo2_gadgets.svg)](https://crates.io/crates/halo2_gadgets) #
 
-Requires Rust 1.56.1+.
+Requires Rust 1.60+.
 
 ## Documentation
 

halo2_proofs/Cargo.toml

@@ -8,7 +8,7 @@ authors = [
     "Jack Grigg <[email protected]>",
 ]
 edition = "2021"
-rust-version = "1.56.1"
+rust-version = "1.59"
 description = """
 Fast PLONK-based zero-knowledge proving system with no trusted setup
 """

halo2_proofs/README.md

@@ -4,7 +4,7 @@
 
 ## Minimum Supported Rust Version
 
-Requires Rust **1.56.1** or higher.
+Requires Rust **1.60** or higher.
 
 Minimum supported Rust version can be changed in the future, but it will be done with a
 minor version bump.

rust-toolchain.toml

@@ -0,0 +1,2 @@
+[toolchain]
+channel = "1.60.0"