Auto merge of #57087 - Centril:rollup, r=Centril

Rollup of 14 pull requests

Successful merges:

 - #56188 (enum type instead of variant suggestion unification )
 - #56342 (Improve docs for collecting into `Option`s)
 - #56916 (Fix mutable references in `static mut`)
 - #56917 (Simplify MIR generation for logical operations)
 - #56939 (Pin stabilization)
 - #56953 (Mark tuple structs as live if their constructors are used)
 - #56964 (Remove `TokenStream::JointTree`.)
 - #56966 (Correct strings for raw pointer deref and array access suggestions)
 - #57020 (Point to cause of `fn` expected return type)
 - #57032 (fix deprecation warnings in liballoc benches)
 - #57053 (Fix alignment for array indexing)
 - #57062 (Fix a comment)
 - #57067 (Stabilize min_const_unsafe_fn in 1.33)
 - #57078 (Ignore two tests on s390x)

Failed merges:

r? @ghost

Author: bors

Cargo.lock

@@ -18,6 +18,7 @@ dependencies = [
  "compiler_builtins 0.1.2 (registry+https://github.com/rust-lang/crates.io-index)",
  "core 0.0.0",
  "rand 0.6.1 (registry+https://github.com/rust-lang/crates.io-index)",
+ "rand_xorshift 0.1.0 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
 [[package]]

src/liballoc/Cargo.toml

@@ -15,6 +15,7 @@ compiler_builtins = { version = "0.1.0", features = ['rustc-dep-of-std'] }
 
 [dev-dependencies]
 rand = "0.6"
+rand_xorshift = "0.1"
 
 [[test]]
 name = "collectionstests"