Allow unexpected_cfgs

Rust `nightly` just introduced a new lint that breaks us, disable it.

Same as rust-bitcoin/rust-bitcoin#2748

Please see 2748 for full description of the issue this resolves.

Author: tcharding

fuzz/fuzz_targets/compile_descriptor.rs

@@ -1,3 +1,5 @@
+#![allow(unexpected_cfgs)]
+
 use std::str::FromStr;
 
 use honggfuzz::fuzz;

fuzz/fuzz_targets/parse_descriptor.rs

@@ -1,3 +1,5 @@
+#![allow(unexpected_cfgs)]
+
 use std::str::FromStr;
 
 use honggfuzz::fuzz;

fuzz/fuzz_targets/parse_descriptor_secret.rs

@@ -1,3 +1,5 @@
+#![allow(unexpected_cfgs)]
+
 use std::str::FromStr;
 
 use honggfuzz::fuzz;

fuzz/fuzz_targets/roundtrip_concrete.rs

@@ -1,3 +1,5 @@
+#![allow(unexpected_cfgs)]
+
 use std::str::FromStr;
 
 use honggfuzz::fuzz;

fuzz/fuzz_targets/roundtrip_descriptor.rs

@@ -1,3 +1,5 @@
+#![allow(unexpected_cfgs)]
+
 use std::str::FromStr;
 
 use honggfuzz::fuzz;

fuzz/fuzz_targets/roundtrip_miniscript_script.rs

@@ -1,3 +1,5 @@
+#![allow(unexpected_cfgs)]
+
 use honggfuzz::fuzz;
 use miniscript::bitcoin::blockdata::script;
 use miniscript::{Miniscript, Segwitv0};

fuzz/fuzz_targets/roundtrip_miniscript_str.rs

@@ -1,3 +1,5 @@
+#![allow(unexpected_cfgs)]
+
 use std::str::FromStr;
 
 use honggfuzz::fuzz;

fuzz/fuzz_targets/roundtrip_semantic.rs

@@ -1,3 +1,5 @@
+#![allow(unexpected_cfgs)]
+
 use std::str::FromStr;
 
 use honggfuzz::fuzz;

src/lib.rs

@@ -88,6 +88,8 @@
 // Clippy lints that we have disabled
 #![allow(clippy::iter_kv_map)] // https://github.com/rust-lang/rust-clippy/issues/11752
 #![allow(clippy::manual_range_contains)] // I hate this lint -asp
+// This one is just batshit. "Your projects are required to either have a build.rs or allow users' dependencies to disable your crypto."
+#![allow(unexpected_cfgs)]
 
 #[cfg(target_pointer_width = "16")]
 compile_error!(