Update rand in the stdlib tests, and remove the getrandom feature from it.

Cargo.lock

@@ -30,7 +30,7 @@ version = "0.7.4"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "43bb833f0bf979d8475d38fbf09ed3b8a55e1885fe93ad3f93239fc6a4f17b98"
 dependencies = [
- "getrandom 0.2.8",
+ "getrandom",
  "once_cell",
  "version_check",
 ]
@@ -50,7 +50,7 @@ version = "0.0.0"
 dependencies = [
  "compiler_builtins",
  "core",
- "rand 0.7.3",
+ "rand",
  "rand_xorshift",
 ]
 
@@ -947,7 +947,7 @@ checksum = "6245d59a3e82a7fc217c5828a6692dbc6dfb63a0c8c90495621f7b9d79704a0e"
 name = "core"
 version = "0.0.0"
 dependencies = [
- "rand 0.7.3",
+ "rand",
  "rand_xorshift",
 ]
 
@@ -1051,7 +1051,7 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "ef2b4b23cddf68b89b8f8069890e8c270d54e2d5fe1b143820234805e4cb17ef"
 dependencies = [
  "generic-array",
- "rand_core 0.6.4",
+ "rand_core",
  "subtle",
  "zeroize",
 ]
@@ -1310,7 +1310,7 @@ version = "2.0.4"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "6a3d382e8464107391c8706b4c14b087808ecb909f6c15c34114bc42e53a9e4c"
 dependencies = [
- "getrandom 0.2.8",
+ "getrandom",
 ]
 
 [[package]]
@@ -1347,7 +1347,7 @@ dependencies = [
  "hkdf",
  "pem-rfc7468",
  "pkcs8",
- "rand_core 0.6.4",
+ "rand_core",
  "sec1",
  "subtle",
  "zeroize",
@@ -1478,7 +1478,7 @@ version = "0.12.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "d013fc25338cc558c5c2cfbad646908fb23591e2404481826742b651c9af7160"
 dependencies = [
- "rand_core 0.6.4",
+ "rand_core",
  "subtle",
 ]
 
@@ -1745,17 +1745,6 @@ dependencies = [
  "unicode-width",
 ]
 
-[[package]]
-name = "getrandom"
-version = "0.1.16"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "8fc3cb4d91f53b50155bdcfd23f6a4c39ae1969c2ae85982b135750cccaf5fce"
-dependencies = [
- "cfg-if",
- "libc",
- "wasi 0.9.0+wasi-snapshot-preview1",
-]
-
 [[package]]
 name = "getrandom"
 version = "0.2.8"
@@ -1765,7 +1754,7 @@ dependencies = [
  "cfg-if",
  "js-sys",
  "libc",
- "wasi 0.11.0+wasi-snapshot-preview1",
+ "wasi",
  "wasm-bindgen",
 ]
 
@@ -1836,7 +1825,7 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "5dfbfb3a6cfbd390d5c9564ab283a0349b9b9fcd46a706c1eb10e0db70bfbac7"
 dependencies = [
  "ff",
- "rand_core 0.6.4",
+ "rand_core",
  "subtle",
 ]
 
@@ -2111,7 +2100,7 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "af1955a75fa080c677d3972822ec4bad316169ab1cfc6c257a942c2265dbe5fe"
 dependencies = [
  "bitmaps",
- "rand_core 0.6.4",
+ "rand_core",
  "rand_xoshiro",
  "sized-chunks",
  "typenum",
@@ -2656,14 +2645,14 @@ version = "0.1.0"
 dependencies = [
  "colored",
  "env_logger 0.9.0",
- "getrandom 0.2.8",
+ "getrandom",
  "lazy_static",
  "libc",
  "libffi",
  "libloading",
  "log",
  "measureme",
- "rand 0.8.5",
+ "rand",
  "regex",
  "rustc-workspace-hack",
  "rustc_version",
@@ -2966,10 +2955,10 @@ checksum = "ed20c4c21d893414f42e0cbfebe8a8036b5ae9b0264611fb6504e395eda6ceec"
 dependencies = [
  "ct-codecs",
  "ed25519-compact",
- "getrandom 0.2.8",
+ "getrandom",
  "orion",
  "p384",
- "rand_core 0.6.4",
+ "rand_core",
  "regex",
  "serde",
  "serde_json",
@@ -3089,7 +3078,7 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "5d5285893bb5eb82e6aaf5d59ee909a06a16737a8970984dd7746ba9283498d6"
 dependencies = [
  "phf_shared",
- "rand 0.8.5",
+ "rand",
 ]
 
 [[package]]
@@ -3294,38 +3283,15 @@ dependencies = [
  "proc-macro2",
 ]
 
-[[package]]
-name = "rand"
-version = "0.7.3"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "6a6b1679d49b24bbfe0c803429aa1874472f50d9b363131f0e89fc356b544d03"
-dependencies = [
- "getrandom 0.1.16",
- "libc",
- "rand_chacha 0.2.2",
- "rand_core 0.5.1",
- "rand_hc",
-]
-
 [[package]]
 name = "rand"
 version = "0.8.5"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "34af8d1a0e25924bc5b7c43c079c942339d8f0a8b57c39049bef581b46327404"
 dependencies = [
  "libc",
- "rand_chacha 0.3.0",
- "rand_core 0.6.4",
-]
-
-[[package]]
-name = "rand_chacha"
-version = "0.2.2"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "f4c8ed856279c9737206bf725bf36935d8666ead7aa69b52be55af369d193402"
-dependencies = [
- "ppv-lite86",
- "rand_core 0.5.1",
+ "rand_chacha",
+ "rand_core",
 ]
 
 [[package]]
@@ -3335,16 +3301,7 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "e12735cf05c9e10bf21534da50a147b924d555dc7a547c42e6bb2d5b6017ae0d"
 dependencies = [
  "ppv-lite86",
- "rand_core 0.6.4",
-]
-
-[[package]]
-name = "rand_core"
-version = "0.5.1"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "90bde5296fc891b0cef12a6d03ddccc162ce7b2aff54160af9338f8d40df6d19"
-dependencies = [
- "getrandom 0.1.16",
+ "rand_core",
 ]
 
 [[package]]
@@ -3353,25 +3310,16 @@ version = "0.6.4"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "ec0be4795e2f6a28069bec0b5ff3e2ac9bafc99e6a9a7dc3547996c5c816922c"
 dependencies = [
- "getrandom 0.2.8",
-]
-
-[[package]]
-name = "rand_hc"
-version = "0.2.0"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "ca3129af7b92a17112d59ad498c6f81eaf463253766b90396d39ea7a39d6613c"
-dependencies = [
- "rand_core 0.5.1",
+ "getrandom",
 ]
 
 [[package]]
 name = "rand_xorshift"
-version = "0.2.0"
+version = "0.3.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "77d416b86801d23dde1aa643023b775c3a462efc0ed96443add11546cdf1dca8"
+checksum = "d25bf25ec5ae4a3f1b92f929810509a2f53d7dca2f50b794ff57e3face536c8f"
 dependencies = [
- "rand_core 0.5.1",
+ "rand_core",
 ]
 
 [[package]]
@@ -3380,7 +3328,7 @@ version = "0.6.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "6f97cdb2a36ed4183de61b2f824cc45c9f1037f28afe0a322e9fff4c108b5aaa"
 dependencies = [
- "rand_core 0.6.4",
+ "rand_core",
 ]
 
 [[package]]
@@ -3422,7 +3370,7 @@ version = "0.4.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "528532f3d801c87aec9def2add9ca802fe569e44a544afe633765267840abe64"
 dependencies = [
- "getrandom 0.2.8",
+ "getrandom",
  "redox_syscall",
 ]
 
@@ -3636,10 +3584,10 @@ version = "1.0.0"
 dependencies = [
  "bstr 0.2.17",
  "clap 3.2.20",
- "getrandom 0.2.8",
+ "getrandom",
  "libc",
  "libz-sys",
- "rand 0.8.5",
+ "rand",
  "regex",
  "serde_json",
  "syn",
@@ -3652,7 +3600,7 @@ name = "rustc_abi"
 version = "0.0.0"
 dependencies = [
  "bitflags",
- "rand 0.8.5",
+ "rand",
  "rand_xoshiro",
  "rustc_data_structures",
  "rustc_index",
@@ -4156,7 +4104,7 @@ dependencies = [
 name = "rustc_incremental"
 version = "0.0.0"
 dependencies = [
- "rand 0.8.5",
+ "rand",
  "rustc_ast",
  "rustc_data_structures",
  "rustc_errors",
@@ -5179,7 +5127,7 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "74233d3b3b2f6d4b006dc19dee745e73e2a6bfb6f93607cd3b02bd5b00797d7c"
 dependencies = [
  "digest",
- "rand_core 0.6.4",
+ "rand_core",
 ]
 
 [[package]]
@@ -5339,11 +5287,12 @@ dependencies = [
  "panic_abort",
  "panic_unwind",
  "profiler_builtins",
- "rand 0.7.3",
+ "rand",
+ "rand_xorshift",
  "rustc-demangle",
  "std_detect",
  "unwind",
- "wasi 0.11.0+wasi-snapshot-preview1",
+ "wasi",
 ]
 
 [[package]]
@@ -5815,7 +5764,7 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "97fee6b57c6a41524a810daee9286c02d7752c4253064d0b05472833a438f675"
 dependencies = [
  "cfg-if",
- "rand 0.8.5",
+ "rand",
  "static_assertions",
 ]
 
@@ -6098,7 +6047,7 @@ version = "0.8.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "bc5cf98d8186244414c848017f0e2676b3fcb46807f6668a97dfe67359a3c4b7"
 dependencies = [
- "getrandom 0.2.8",
+ "getrandom",
 ]
 
 [[package]]
@@ -6139,12 +6088,6 @@ dependencies = [
  "winapi-util",
 ]
 
-[[package]]
-name = "wasi"
-version = "0.9.0+wasi-snapshot-preview1"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "cccddf32554fecc6acb585f82a32a72e28b48f8c4c1883ddfeeeaa96f7d8e519"
-
 [[package]]
 name = "wasi"
 version = "0.11.0+wasi-snapshot-preview1"

library/alloc/Cargo.toml

@@ -13,8 +13,8 @@ core = { path = "../core" }
 compiler_builtins = { version = "0.1.40", features = ['rustc-dep-of-std'] }
 
 [dev-dependencies]
-rand = "0.7"
-rand_xorshift = "0.2"
+rand = { version = "0.8.5", default-features = false, features = ["alloc"] }
+rand_xorshift = "0.3.0"
 
 [[test]]
 name = "collectionstests"

library/alloc/benches/slice.rs

@@ -1,6 +1,6 @@
 use std::{mem, ptr};
 
-use rand::distributions::{Alphanumeric, Standard};
+use rand::distributions::{Alphanumeric, DistString, Standard};
 use rand::Rng;
 use test::{black_box, Bencher};
 
@@ -218,7 +218,7 @@ fn gen_strings(len: usize) -> Vec<String> {
     let mut v = vec![];
     for _ in 0..len {
         let n = rng.gen::<usize>() % 20 + 1;
-        v.push((&mut rng).sample_iter(&Alphanumeric).take(n).collect());
+        v.push(Alphanumeric.sample_string(&mut rng, n));
     }
     v
 }

library/alloc/src/collections/binary_heap/tests.rs

@@ -465,7 +465,7 @@ fn test_retain() {
 #[test]
 #[cfg(not(target_os = "emscripten"))]
 fn panic_safe() {
-    use rand::{seq::SliceRandom, thread_rng};
+    use rand::seq::SliceRandom;
     use std::cmp;
     use std::panic::{self, AssertUnwindSafe};
     use std::sync::atomic::{AtomicUsize, Ordering};
@@ -490,7 +490,7 @@ fn panic_safe() {
             self.0.partial_cmp(&other.0)
         }
     }
-    let mut rng = thread_rng();
+    let mut rng = crate::test_helpers::test_rng();
     const DATASZ: usize = 32;
     // Miri is too slow
     let ntest = if cfg!(miri) { 1 } else { 10 };