Bump the MSRV to 1.74

In line with `rust-bitcoin` bump the MSRV. Remove `clippy.toml` now it
is not needed with this toolchain.

Author: tcharding

.github/workflows/rust.yml

@@ -70,7 +70,7 @@ jobs:
         run: ./maintainer-tools/ci/run_task.sh nightly
 
   MSRV:                         # 2 jobs, one per lock file.
-    name: Test - 1.63.0 toolchain
+    name: Test - 1.74.0 toolchain
     runs-on: ubuntu-latest
     strategy:
       fail-fast: false
@@ -94,7 +94,7 @@ jobs:
       - name: "Select toolchain"
         uses: dtolnay/rust-toolchain@stable
         with:
-          toolchain: "1.63.0"
+          toolchain: "1.74.0"
       - name: "Set dependencies"
         run: cp Cargo-${{ matrix.dep }}.lock Cargo.lock
       - name: "Run test script"

Cargo.toml

@@ -9,7 +9,7 @@ description = "Miniscript: a subset of Bitcoin Script designed for analysis"
 keywords = [ "crypto", "bitcoin", "miniscript", "script" ]
 readme = "README.md"
 edition = "2021"
-rust-version = "1.63.0"
+rust-version = "1.74.0"
 
 [features]
 default = ["std"]

README.md

@@ -4,7 +4,7 @@
 [![Build](https://github.com/rust-bitcoin/rust-miniscript/workflows/Continuous%20integration/badge.svg)](https://github.com/rust-bitcoin/rust-miniscript/actions)
 [![Issues](https://img.shields.io/github/issues-raw/rust-bitcoin/rust-miniscript)](https://github.com/rust-bitcoin/rust-miniscript/issues)
 
-**Minimum Supported Rust Version:** 1.63.0
+**Minimum Supported Rust Version:** 1.74.0
 
 # Miniscript
 
@@ -38,10 +38,7 @@ or in [the `examples/` directory](https://github.com/rust-bitcoin/rust-miniscrip
 
 ## Minimum Supported Rust Version (MSRV)
 
-This library should always compile with any combination of features on **Rust 1.63.0**.
-
-Some dependencies do not play nicely with our MSRV, if you are running the tests
-you may need to pin some dependencies. See `./contrib/pin.sh` for current pinning.
+This library should always compile with any combination of features on **Rust 1.64.0**.
 
 ## Contributing
 

clippy.toml

@@ -1,7 +1,7 @@
 [package]
 name = "descriptor-fuzz"
 edition = "2021"
-rust-version = "1.63.0"
+rust-version = "1.74.0"
 version = "0.0.1"
 authors = ["Generated by fuzz/generate-files.sh"]
 publish = false

contrib/pin.sh

@@ -13,7 +13,7 @@ cat > "$REPO_DIR/fuzz/Cargo.toml" <<EOF
 [package]
 name = "descriptor-fuzz"
 edition = "2021"
-rust-version = "1.63.0"
+rust-version = "1.74.0"
 version = "0.0.1"
 authors = ["Generated by fuzz/generate-files.sh"]
 publish = false