Auto merge of #153000 - Zalathar:rollup-68jDIBK, r=Zalathar

Rollup of 9 pull requests

Successful merges:

 - rust-lang/rust#152229 (Remove deterministic picking from query cycle handling)
 - rust-lang/rust#152970 (extend unpin noalias tests to cover mutable references)
 - rust-lang/rust#149783 (stabilize `cfg_select!`)
 - rust-lang/rust#151744 (fix refining_impl_trait suggestion with return_type_notation)
 - rust-lang/rust#152366 (Add try_shrink_to and try_shrink_to_fit to Vec)
 - rust-lang/rust#152640 (Add direct link to rustc-dev-guide in README)
 - rust-lang/rust#152963 (Revert "Stabilize `str_as_str`")
 - rust-lang/rust#152984 (Remove redundant call to `check_codegen_attributes_extra` in Inliner)
 - rust-lang/rust#152987 (Use `HashStable` derive in more places)

Author: bors

src/lib.rs

@@ -1,6 +1,5 @@
 #![cfg_attr(bootstrap, feature(if_let_guard))]
 #![feature(abort_unwind)]
-#![feature(cfg_select)]
 #![feature(rustc_private)]
 #![feature(float_gamma)]
 #![feature(float_erf)]
@@ -17,6 +16,7 @@
 #![feature(derive_coerce_pointee)]
 #![feature(arbitrary_self_types)]
 #![feature(iter_advance_by)]
+#![cfg_attr(bootstrap, feature(cfg_select))]
 // Configure clippy and other lints
 #![allow(
     clippy::collapsible_else_if,

tests/pass/float_extra_rounding_error.rs

@@ -2,7 +2,6 @@
 //@revisions: random max none
 //@[max]compile-flags: -Zmiri-max-extra-rounding-error
 //@[none]compile-flags: -Zmiri-no-extra-rounding-error
-#![feature(cfg_select)]
 
 use std::collections::HashSet;
 use std::hint::black_box;