fix: increase MSRV to 1.83

`generic-array` v1.2.0 has a minumum supported Rust version of 1.83,
hence increase to this version and fixing corresponding Clippy warnings.

Author: vmx

ec-gpu-gen/Cargo.toml

@@ -7,7 +7,7 @@ description = "Code generator for field and eliptic curve operations on the GPUs
 homepage = "https://github.com/filecoin-project/ff-cl-gen"
 repository = "https://github.com/filecoin-project/ff-cl-gen"
 license = "MIT/Apache-2.0"
-rust-version = "1.70.0"
+rust-version = "1.83.0"
 
 [dependencies]
 bitvec = "1.0.1"

ec-gpu-gen/src/multiexp_cpu.rs

@@ -99,7 +99,7 @@ impl AsRef<FullDensity> for FullDensity {
     }
 }
 
-impl<'a> QueryDensity for &'a FullDensity {
+impl QueryDensity for &FullDensity {
     type Iter = iter::Repeat<bool>;
 
     fn iter(self) -> Self::Iter {

ec-gpu-gen/src/source.rs

@@ -323,7 +323,7 @@ impl SourceBuilder {
             .map(|multiexp| multiexp.source(limb_size))
             .collect();
         let extra_sources = self.extra_sources.join("\n");
-        vec![
+        [
             COMMON_SRC.to_string(),
             fields,
             extension_fields,
@@ -599,7 +599,7 @@ fn generate_cuda(source_builder: &SourceBuilder) -> PathBuf {
     // This is a hack when no properly compiled kernel is needed. That's the case when the
     // documentation is built on docs.rs and when Clippy is run. We can use arbitrary bytes as
     // input then.
-    if env::var("DOCS_RS").is_ok() || cfg!(feature = "cargo-clippy") {
+    if env::var("DOCS_RS").is_ok() || cfg!(clippy) {
         println!("cargo:rustc-env=_EC_GPU_CUDA_KERNEL_FATBIN=../build.rs");
         return PathBuf::from("../build.rs");
     }
@@ -630,7 +630,7 @@ fn generate_cuda(source_builder: &SourceBuilder) -> PathBuf {
     // rebuilt if any of them change.
     let mut hasher = Sha256::new();
     hasher.update(kernel_source.as_bytes());
-    hasher.update(&format!("{:?}", &nvcc));
+    hasher.update(format!("{:?}", &nvcc));
     let kernel_digest = hex::encode(hasher.finalize());
 
     let source_path: PathBuf = [&out_dir, &format!("{}.cu", &kernel_digest)]

ec-gpu-gen/src/threadpool.rs

@@ -133,7 +133,7 @@ fn log2_floor(num: usize) -> u32 {
 }
 
 #[cfg(test)]
-pub mod tests {
+mod tests {
     use super::*;
 
     #[test]

rust-toolchain

@@ -1 +1 @@
-1.70.0
+1.83.0