Update to latest proc-macro-crate version (#8294)

substrate/frame/staking/reward-curve/Cargo.toml

@@ -18,7 +18,7 @@ proc-macro = true
 syn = { version = "1.0.58", features = ["full", "visit"] }
 quote = "1.0.3"
 proc-macro2 = "1.0.6"
-proc-macro-crate = "0.1.4"
+proc-macro-crate = "1.0.0"
 
 [dev-dependencies]
 sp-runtime = { version = "3.0.0", path = "../../../primitives/runtime" }

substrate/frame/staking/reward-curve/src/lib.rs

@@ -22,7 +22,7 @@ mod log;
 use log::log2;
 use proc_macro::TokenStream;
 use proc_macro2::{TokenStream as TokenStream2, Span};
-use proc_macro_crate::crate_name;
+use proc_macro_crate::{crate_name, FoundCrate};
 use quote::{quote, ToTokens};
 use std::convert::TryInto;
 use syn::parse::{Parse, ParseStream};
@@ -82,11 +82,12 @@ pub fn build(input: TokenStream) -> TokenStream {
 	let test_module = generate_test_module(&input);
 
 	let imports = match crate_name("sp-runtime") {
-		Ok(sp_runtime) => {
+		Ok(FoundCrate::Itself) => quote!( extern crate sp_runtime as _sp_runtime; ),
+		Ok(FoundCrate::Name(sp_runtime)) => {
 			let ident = syn::Ident::new(&sp_runtime, Span::call_site());
 			quote!( extern crate #ident as _sp_runtime; )
 		},
-		Err(e) => syn::Error::new(Span::call_site(), &e).to_compile_error(),
+		Err(e) => syn::Error::new(Span::call_site(), e).to_compile_error(),
 	};
 
 	let const_name = input.ident;