Ignore let_underscore_untyped pedantic clippy lint

rust-lang/rust-clippy#10410

    error: non-binding `let` without a type annotation
      --> build.rs:20:5
       |
    20 |     let _ = compiler.minor;
       |     ^^^^^^^^^^^^^^^^^^^^^^^
       |
       = help: consider adding a type annotation or removing the `let` keyword
       = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#let_underscore_untyped
       = note: `-D clippy::let-underscore-untyped` implied by `-D clippy::pedantic`

    error: non-binding `let` without a type annotation
       --> src/lookahead.rs:104:9
        |
    104 |         let _ = token;
        |         ^^^^^^^^^^^^^^
        |
        = help: consider adding a type annotation or removing the `let` keyword
        = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#let_underscore_untyped
        = note: `-D clippy::let-underscore-untyped` implied by `-D clippy::pedantic`

    error: non-binding `let` without a type annotation
       --> src/parse.rs:379:5
        |
    379 |     let _ = proof;
        |     ^^^^^^^^^^^^^^
        |
        = help: consider adding a type annotation or removing the `let` keyword
        = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#let_underscore_untyped

    error: non-binding `let` without a type annotation
       --> src/parse.rs:580:9
        |
    580 |         let _ = token;
        |         ^^^^^^^^^^^^^^
        |
        = help: consider adding a type annotation or removing the `let` keyword
        = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#let_underscore_untyped

    error: non-binding `let` without a type annotation
       --> src/parse.rs:628:9
        |
    628 |         let _ = token;
        |         ^^^^^^^^^^^^^^
        |
        = help: consider adding a type annotation or removing the `let` keyword
        = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#let_underscore_untyped

    error: non-binding `let` without a type annotation
       --> src/parse.rs:647:9
        |
    647 |         let _ = token;
        |         ^^^^^^^^^^^^^^
        |
        = help: consider adding a type annotation or removing the `let` keyword
        = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#let_underscore_untyped

    error: non-binding `let` without a type annotation
       --> src/parse.rs:751:9
        |
    751 |         let _ = separator;
        |         ^^^^^^^^^^^^^^^^^^
        |
        = help: consider adding a type annotation or removing the `let` keyword
        = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#let_underscore_untyped

    error: non-binding `let` without a type annotation
        --> src/parse.rs:1229:9
         |
    1229 |         let _ = scope;
         |         ^^^^^^^^^^^^^^
         |
         = help: consider adding a type annotation or removing the `let` keyword
         = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#let_underscore_untyped

Author: dtolnay

build.rs

@@ -1,4 +1,4 @@
-#![allow(clippy::manual_let_else)]
+#![allow(clippy::let_underscore_untyped, clippy::manual_let_else)]
 
 use std::env;
 use std::process::Command;

src/lib.rs

@@ -267,6 +267,7 @@
     clippy::inherent_to_string,
     clippy::items_after_statements,
     clippy::large_enum_variant,
+    clippy::let_underscore_untyped, // https://github.com/rust-lang/rust-clippy/issues/10410
     clippy::manual_assert,
     clippy::manual_let_else,
     clippy::match_like_matches_macro,