Update MSRV to 1.56.1

.github/workflows/ci.yml

@@ -14,7 +14,7 @@ jobs:
       - uses: actions/checkout@v2
       - uses: actions-rs/toolchain@v1
         with:
-          toolchain: 1.51.0
+          toolchain: 1.56.1
           override: true
 
       - name: Fetch path to Zcash parameters
@@ -55,7 +55,7 @@ jobs:
       - uses: actions/checkout@v2
       - uses: actions-rs/toolchain@v1
         with:
-          toolchain: 1.51.0
+          toolchain: 1.56.1
           override: true
       - name: Add target
         run: rustup target add ${{ matrix.target }}
@@ -78,7 +78,7 @@ jobs:
       - uses: actions/checkout@v2
       - uses: actions-rs/toolchain@v1
         with:
-          toolchain: 1.51.0
+          toolchain: 1.56.1
           override: true
       # Build benchmarks to prevent bitrot
       - name: Build benchmarks
@@ -88,20 +88,20 @@ jobs:
           args: --all --benches
 
   clippy:
-    name: Clippy (1.51.0)
+    name: Clippy (1.56.1)
     timeout-minutes: 30
     runs-on: ubuntu-latest
     steps:
       - uses: actions/checkout@v2
       - uses: actions-rs/toolchain@v1
         with:
-          toolchain: 1.51.0
+          toolchain: 1.56.1
           components: clippy
           override: true
       - name: Run clippy
         uses: actions-rs/clippy-check@v1
         with:
-          name: Clippy (1.51.0)
+          name: Clippy (1.56.1)
           token: ${{ secrets.GITHUB_TOKEN }}
           args: --all-features --all-targets -- -D warnings
 
@@ -173,7 +173,7 @@ jobs:
       - uses: actions/checkout@v2
       - uses: actions-rs/toolchain@v1
         with:
-          toolchain: 1.51.0
+          toolchain: 1.56.1
           override: true
       - name: cargo fetch
         uses: actions-rs/cargo@v1
@@ -196,7 +196,7 @@ jobs:
       - uses: actions/checkout@v2
       - uses: actions-rs/toolchain@v1
         with:
-          toolchain: 1.51.0
+          toolchain: 1.56.1
           override: true
 
       # cargo fmt does not build the code, and running it in a fresh clone of

components/equihash/CHANGELOG.md

@@ -7,5 +7,8 @@ and this library adheres to Rust's notion of
 
 ## [Unreleased]
 
+### Changed
+- MSRV is now 1.56.1.
+
 ## [0.1.0] - 2020-07-10
 Initial release.

components/zcash_note_encryption/CHANGELOG.md

@@ -7,5 +7,8 @@ and this library adheres to Rust's notion of
 
 ## [Unreleased]
 
+### Changed
+- MSRV is now 1.56.1.
+
 ## [0.1.0] - 2021-12-17
 Initial release.

rust-toolchain

@@ -1 +1 @@
-1.51.0
+1.56.1

zcash_client_backend/CHANGELOG.md

@@ -38,7 +38,7 @@ and this library adheres to Rust's notion of
   - `zcash_client_backend::encoding::encode_transparent_address`
 
 ### Changed
-- MSRV is now 1.51.0.
+- MSRV is now 1.56.1.
 - Bumped dependencies to `ff 0.11`, `group 0.11`, `bls12_381 0.6`, `jubjub 0.8`.
 - `epk: jubjub::ExtendedPoint` has been replaced by
   `ephemeral_key: zcash_note_encryption::EphemeralKeyBytes` in various places:

zcash_client_sqlite/CHANGELOG.md

@@ -18,7 +18,7 @@ and this library adheres to Rust's notion of
     rewinds exceed supported bounds.
 
 ### Changed
-- MSRV is now 1.51.0.
+- MSRV is now 1.56.1.
 - Bumped dependencies to `ff 0.11`, `group 0.11`, `jubjub 0.8`.
 - Renamed the following to use lower-case abbreviations (matching Rust
   naming conventions):

zcash_history/CHANGELOG.md

@@ -14,6 +14,7 @@ and this library adheres to Rust's notion of
 - `zcash_history::Entry::new_leaf`
 
 ### Changed
+- MSRV is now 1.56.1.
 - `zcash_history::{Entry, IndexedNode, Tree}` now have a `Version` parameter.
 
 ### Removed

zcash_primitives/CHANGELOG.md

@@ -101,7 +101,7 @@ and this library adheres to Rust's notion of
   - `impl Sum<&Amount> for Option<Amount>`
 
 ### Changed
-- MSRV is now 1.51.0.
+- MSRV is now 1.56.1.
 - Bumped dependencies to `ff 0.11`, `group 0.11`, `bls12_381 0.6`, `jubjub 0.8`.
 - The following modules and helpers have been moved into
   `zcash_primitives::sapling`:

zcash_proofs/CHANGELOG.md

@@ -7,7 +7,7 @@ and this library adheres to Rust's notion of
 
 ## [Unreleased]
 ### Changed
-- MSRV is now 1.51.0.
+- MSRV is now 1.56.1.
 - Bumped dependencies to `ff 0.11`, `group 0.11`, `bellman 0.11.1`,
   `bls12_381 0.6`, `jubjub 0.8`.
 - `zcash_proofs::sapling::SaplingVerificationContext::new` now takes a