build(deps): update rand requirement from 0.7.2 to 0.8.0 (#488)

* build(deps): update rand requirement from 0.7.2 to 0.8.0

Updates the requirements on [rand](https://github.com/rust-random/rand) to permit the latest version.
- [Release notes](https://github.com/rust-random/rand/releases)
- [Changelog](https://github.com/rust-random/rand/blob/master/CHANGELOG.md)
- [Commits](rust-random/rand@0.7.3...0.8.0)

Signed-off-by: dependabot[bot] <support@github.com>

* Seed from u64

* uint: use rand 0.7 for quickcheck feature

* kvdb-rocksdb: fix compilation for benches

* parity-crypto: remove unused dep and fix a warning

* cargo fmt and another unused dep

Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>
Co-authored-by: Andronik Ordian <write@reusable.software>
Co-authored-by: David Palm <dvdplm@gmail.com>

ethbloom/Cargo.toml

@@ -19,7 +19,7 @@ impl-codec = { version = "0.4.1", path = "../primitive-types/impls/codec", defau
 
 [dev-dependencies]
 criterion = "0.3.0"
-rand = "0.7.2"
+rand = "0.8.0"
 hex-literal = "0.3.1"
 
 [features]

fixed-hash/Cargo.toml

@@ -16,14 +16,15 @@ features = ["quickcheck", "api-dummy"]
 [dependencies]
 byteorder = { version = "1.3.2", optional = true, default-features = false }
 quickcheck = { version = "0.9.0", optional = true }
-rand = { version = "0.7.2", optional = true, default-features = false }
+rand = { version = "0.8.0", optional = true, default-features = false }
 rustc-hex = { version = "2.0.1", optional = true, default-features = false }
 static_assertions = "1.0.0"
 arbitrary = { version = "0.4", optional = true }
 
 [dev-dependencies]
 rand_xorshift = "0.2.0"
 criterion = "0.3.0"
+rand = { version = "0.8.0", default-features = false, features = ["std_rng"] }
 
 [features]
 default = ["std", "rand", "rustc-hex", "byteorder"]

fixed-hash/src/tests.rs

@@ -244,23 +244,8 @@ mod rand {
 
 	#[test]
 	fn random() {
-		let default_seed = <StdRng as SeedableRng>::Seed::default();
-		let mut rng = StdRng::from_seed(default_seed);
-		assert_eq!(H32::random_using(&mut rng), H32::from([0x76, 0xa0, 0x40, 0x53]));
-	}
-
-	#[test]
-	fn randomize() {
-		let default_seed = <StdRng as SeedableRng>::Seed::default();
-		let mut rng = StdRng::from_seed(default_seed);
-		assert_eq!(
-			{
-				let mut ret = H32::zero();
-				ret.randomize_using(&mut rng);
-				ret
-			},
-			H32::from([0x76, 0xa0, 0x40, 0x53])
-		)
+		let mut rng = StdRng::seed_from_u64(123);
+		assert_eq!(H32::random_using(&mut rng), H32::from([0xeb, 0x96, 0xaf, 0x1c]));
 	}
 }
 

kvdb-rocksdb/Cargo.toml

@@ -28,7 +28,7 @@ alloc_counter = "0.0.4"
 criterion = "0.3"
 ethereum-types = { path = "../ethereum-types" }
 kvdb-shared-tests = { path = "../kvdb-shared-tests", version = "0.6" }
-rand = "0.7.2"
+rand = "0.8.0"
 tempfile = "3.1.0"
 keccak-hash = { path = "../keccak-hash" }
 sysinfo = "0.15.3"

kvdb-rocksdb/benches/bench_read_perf.rs

@@ -50,7 +50,7 @@ fn open_db() -> Database {
 /// an `ElasticArray128` so sometimes we save on allocations.
 fn n_random_bytes(n: usize) -> Vec<u8> {
 	let mut rng = rand::thread_rng();
-	let variability: i64 = rng.gen_range(0, (n / 5) as i64);
+	let variability: i64 = rng.gen_range(0..(n / 5) as i64);
 	let plus_or_minus: i64 = if variability % 2 == 0 { 1 } else { -1 };
 	let range = Uniform::from(0..u8::max_value());
 	rng.sample_iter(&range).take((n as i64 + plus_or_minus * variability) as usize).collect()

parity-crypto/Cargo.toml

@@ -22,7 +22,6 @@ ethereum-types = { version = "0.10.0", optional = true, path = "../ethereum-type
 hmac = "0.10.1"
 lazy_static = { version = "1.4.0", optional = true }
 pbkdf2 = "0.6.0"
-rand = "0.7.3"
 ripemd160 = "0.9.1"
 rustc-hex = { version = "2.1.0", default-features = false, optional = true }
 scrypt = { version = "0.5.0" }

parity-crypto/src/publickey/secret_key.rs

@@ -8,7 +8,6 @@
 
 //! Secret key implementation.
 
-use std::convert::TryFrom;
 use std::fmt;
 use std::ops::Deref;
 use std::str::FromStr;

transaction-pool/Cargo.toml

@@ -10,7 +10,6 @@ edition = "2018"
 [dependencies]
 log = "0.4.8"
 smallvec = "1.6.0"
-trace-time = { path = "../trace-time", version = "0.1" }
 
 [dev-dependencies]
 ethereum-types = { version = "0.10.0", path = "../ethereum-types" }

uint/Cargo.toml

@@ -13,15 +13,15 @@ edition = "2018"
 byteorder = { version = "1.3.2", default-features = false }
 crunchy = { version = "0.2.2", default-features = false }
 qc = { package = "quickcheck", version = "0.9.0", optional = true }
-rand = { version = "0.7.2", default-features = false, optional = true }
+rand07 = { package = "rand", version = "0.7", default-features = false, optional = true }
 hex = { version = "0.4", default-features = false }
 static_assertions = "1.0.0"
 arbitrary = { version = "0.4", optional = true }
 
 [features]
 default = ["std"]
 std = ["byteorder/std", "crunchy/std", "hex/std"]
-quickcheck = ["qc", "rand"]
+quickcheck = ["qc", "rand07"]
 
 [[example]]
 name = "modular"

uint/src/lib.rs

@@ -27,7 +27,7 @@ pub use qc;
 
 #[cfg(feature = "quickcheck")]
 #[doc(hidden)]
-pub use rand;
+pub use rand07;
 
 #[cfg(feature = "arbitrary")]
 #[doc(hidden)]

uint/src/uint.rs

@@ -1742,8 +1742,8 @@ macro_rules! impl_quickcheck_arbitrary_for_uint {
 			fn arbitrary<G: $crate::qc::Gen>(g: &mut G) -> Self {
 				let mut res = [0u8; $n_bytes];
 
-				use $crate::rand::Rng;
-				let p: f64 = $crate::rand::rngs::OsRng.gen();
+				use $crate::rand07::Rng;
+				let p: f64 = $crate::rand07::rngs::OsRng.gen();
 				// make it more likely to generate smaller numbers that
 				// don't use up the full $n_bytes
 				let range =