rand: bump to 0.9

Cargo.toml

@@ -1,32 +1,32 @@
 [package]
 name = "ark-std"
 version = "0.5.0"
-authors = [ "arkworks contributors" ]
+authors = ["arkworks contributors"]
 description = "A library for no_std compatibility"
 homepage = "https://arkworks.rs"
 repository = "https://github.com/arkworks-rs/std"
 documentation = "https://docs.rs/ark-std/"
-keywords = [ "no_std" ]
+keywords = ["no_std"]
 categories = ["cryptography"]
 include = ["Cargo.toml", "src", "README.md", "LICENSE-APACHE", "LICENSE-MIT"]
 license = "MIT/Apache-2.0"
 edition = "2021"
 
 [dependencies]
-rand = { version = "0.8", default-features = false, features = ["std_rng"]}
+rand = { version = "0.9", default-features = false, features = ["std_rng"] }
 rayon = { version = "1", optional = true }
-colored = { version = "2", optional = true }
+colored = { version = "3", optional = true }
 num-traits = { version = "0.2", default-features = false }
 
 [dev-dependencies]
-rand = { version = "0.8", features = ["std"]}
+rand = { version = "0.9", features = ["std"] }
 
 
 [features]
-default = [ "std" ]
+default = ["std"]
 std = []
-parallel = [ "rayon", "std" ]
-print-trace = [ "std", "colored" ]
+parallel = ["rayon", "std"]
+print-trace = ["std", "colored"]
 getrandom = ["rand/std"]
 
 [profile.bench]

src/perf_trace.rs

@@ -183,7 +183,7 @@ pub mod inner {
     pub fn compute_indent_whitespace(indent_amount: usize) -> String {
         let mut indent = String::new();
         for _ in 0..indent_amount {
-            indent.push_str(" ");
+            indent.push(' ');
         }
         indent
     }

src/rand_helper.rs

@@ -1,7 +1,7 @@
 #[cfg(feature = "std")]
 use rand::RngCore;
 use rand::{
-    distributions::{Distribution, Standard},
+    distr::{Distribution, StandardUniform},
     prelude::StdRng,
     Rng,
 };
@@ -14,11 +14,11 @@ pub trait UniformRand: Sized {
 
 impl<T> UniformRand for T
 where
-    Standard: Distribution<T>,
+    StandardUniform: Distribution<T>,
 {
     #[inline]
     fn rand<R: Rng + ?Sized>(rng: &mut R) -> Self {
-        rng.sample(Standard)
+        rng.sample(StandardUniform)
     }
 }
 
@@ -46,21 +46,21 @@ pub fn test_rng() -> impl rand::Rng {
         let is_deterministic =
             std::env::vars().any(|(key, val)| key == "DETERMINISTIC_TEST_RNG" && val == "1");
         if is_deterministic {
-            RngWrapper::Deterministic(test_rng_helper())
+            RngWrapper::Deterministic(Box::new(test_rng_helper()))
         } else {
-            RngWrapper::Randomized(rand::thread_rng())
+            RngWrapper::Randomized(rand::rng())
         }
     }
     #[cfg(not(any(feature = "getrandom", test)))]
     {
-        RngWrapper::Deterministic(test_rng_helper())
+        RngWrapper::Deterministic(Box::new(test_rng_helper()))
     }
 }
 
 /// Helper wrapper to enable `test_rng` to return `impl::Rng`.
 #[cfg(feature = "std")]
 enum RngWrapper {
-    Deterministic(StdRng),
+    Deterministic(Box<StdRng>),
     #[cfg(any(feature = "getrandom", test))]
     Randomized(rand::rngs::ThreadRng),
 }
@@ -93,15 +93,6 @@ impl RngCore for RngWrapper {
             Self::Randomized(rng) => rng.fill_bytes(dest),
         }
     }
-
-    #[inline(always)]
-    fn try_fill_bytes(&mut self, dest: &mut [u8]) -> Result<(), rand::Error> {
-        match self {
-            Self::Deterministic(rng) => rng.try_fill_bytes(dest),
-            #[cfg(any(feature = "getrandom", test))]
-            Self::Randomized(rng) => rng.try_fill_bytes(dest),
-        }
-    }
 }
 
 #[cfg(all(test, feature = "std"))]