Bump MSRV to 1.65

`reddsa 0.5.1` has MSRV 1.65.

CHANGELOG.md

@@ -7,6 +7,7 @@ and this project adheres to Rust's notion of
 
 ## [Unreleased]
 ### Changed
+- MSRV is now 1.65.0.
 - Migrated to `incrementalmerkletree 0.5`.
 
 ## [0.5.0] - 2023-06-06

Cargo.toml

@@ -9,7 +9,7 @@ authors = [
     "Kris Nuttycombe <kris@electriccoin.co>",
 ]
 edition = "2021"
-rust-version = "1.60"
+rust-version = "1.65"
 description = "The Orchard shielded transaction protocol"
 license-file = "LICENSE-BOSL"
 repository = "https://github.com/zcash/orchard"
@@ -48,12 +48,12 @@ incrementalmerkletree = "0.5"
 tracing = "0.1"
 
 # Developer tooling dependencies
-image = { version = ">= 0.24, < 0.24.5", optional = true } # 0.24.5 has MSRV 1.61
+image = { version = "0.24", optional = true }
 plotters = { version = "0.3.0", optional = true }
 
 [dev-dependencies]
 bridgetree = "0.4"
-criterion = "0.3"
+criterion = "0.4" # 0.5 depends on clap 4 which has MSRV 1.70
 halo2_gadgets = { version = "0.3", features = ["test-dependencies"] }
 hex = "0.4"
 proptest = "1.0.0"
@@ -61,8 +61,8 @@ zcash_note_encryption = { version = "0.4", features = ["pre-zip-212"] }
 incrementalmerkletree = { version = "0.5", features = ["test-dependencies"] }
 
 [target.'cfg(unix)'.dev-dependencies]
-inferno = ">= 0.11, < 0.11.15"
-pprof = { version = "0.9", features = ["criterion", "flamegraph"] } # MSRV 1.56
+inferno = { version = "0.11", default-features = false, features = ["multithreaded", "nameattr"] }
+pprof = { version = "0.11", features = ["criterion", "flamegraph"] }
 
 [lib]
 bench = false

README.md

@@ -1,6 +1,6 @@
 # orchard [![Crates.io](https://img.shields.io/crates/v/orchard.svg)](https://crates.io/crates/orchard) #
 
-Requires Rust 1.60+.
+Requires Rust 1.65+.
 
 ## Documentation
 

rust-toolchain.toml

@@ -1,3 +1,3 @@
 [toolchain]
-channel = "1.60.0"
+channel = "1.65.0"
 components = [ "clippy", "rustfmt" ]

src/circuit.rs

@@ -1103,8 +1103,8 @@ mod tests {
             w.write_all(&<[u8; 32]>::from(instance.rk.clone()))?;
             w.write_all(&instance.cmx.to_bytes())?;
             w.write_all(&[
-                if instance.enable_spend { 1 } else { 0 },
-                if instance.enable_output { 1 } else { 0 },
+                u8::from(instance.enable_spend),
+                u8::from(instance.enable_output),
             ])?;
 
             w.write_all(proof.as_ref())?;