Rustup to rust-lang/rust#80522

Author: JohnTitor

README.md

@@ -27,13 +27,13 @@ repository and compiled from source or installed from
 of the nightly toolchain is supported at any given time.
 
 <!-- NOTE: Keep in sync with nightly date on rust-toolchain. -->
-It's recommended to use `nightly-2021-08-31` toolchain.
-You can install it by using `rustup install nightly-2021-08-31` if you already have rustup.
+It's recommended to use `nightly-2021-09-10` toolchain.
+You can install it by using `rustup install nightly-2021-09-10` if you already have rustup.
 Then you can do:
 
 ```sh
-$ rustup component add rustc-dev llvm-tools-preview --toolchain nightly-2021-08-31
-$ cargo +nightly-2021-08-31 install --git https://github.com/rust-lang/rust-semverver
+$ rustup component add rustc-dev llvm-tools-preview --toolchain nightly-2021-09-10
+$ cargo +nightly-2021-09-10 install --git https://github.com/rust-lang/rust-semverver
 ```
 
 You'd also need `cmake` for some dependencies, and a few common libraries (if you hit

rust-toolchain

@@ -1,4 +1,4 @@
 # NOTE: Keep in sync with nightly date on README
 [toolchain]
-channel = "nightly-2021-08-31"
+channel = "nightly-2021-09-10"
 components = ["llvm-tools-preview", "rustc-dev"]

src/lib.rs

@@ -7,10 +7,10 @@
 #![allow(clippy::unnested_or_patterns)]
 #![deny(warnings)]
 
-extern crate rustc_hir; // Requires `rustup component add rustc-dev`
+extern crate rustc_const_eval; // Requires `rustup component add rustc-dev`
+extern crate rustc_hir;
 extern crate rustc_infer;
 extern crate rustc_middle;
-extern crate rustc_mir;
 extern crate rustc_session;
 extern crate rustc_span;
 extern crate rustc_trait_selection;

src/traverse.rs

@@ -17,6 +17,7 @@ use crate::{
     typeck::{BoundContext, TypeComparisonContext},
 };
 use log::{debug, info};
+use rustc_const_eval::const_eval::is_const_fn;
 use rustc_hir::def::{CtorKind, CtorOf, DefKind, Res, Res::Def};
 use rustc_hir::def_id::DefId;
 use rustc_hir::hir_id::HirId;
@@ -31,7 +32,6 @@ use rustc_middle::{
         Visibility::Public,
     },
 };
-use rustc_mir::const_eval::is_const_fn;
 use std::collections::{BTreeMap, HashSet, VecDeque};
 
 /// The main entry point to our analysis passes.