Bumps bincode to 2.0.1

Author: Mottl

Cargo.toml

@@ -35,7 +35,7 @@ static_assertions = "1"
 serde = { version = "1", optional = true }
 arbitrary = { version = "1", optional = true }
 proptest = { version = "1", optional = true }
-bincode = { version = "2.0.0-rc.3", features=["alloc"], optional = true }
+bincode = { version = "2.0.1", features=["alloc"], optional = true }
 
 [dev-dependencies]
 proptest = "1"

build.rs

@@ -5,9 +5,12 @@
 use version_check as rustc;
 
 fn main() {
+    println!("cargo:rustc-check-cfg=cfg(needs_allocator_feature)");
+    println!("cargo:rustc-check-cfg=cfg(has_allocator)");
+
     let ac = autocfg::new();
     let has_feature = Some(true) == rustc::supports_feature("allocator_api");
-    let has_api = ac.probe_trait("alloc::alloc::Allocator");
+    let has_api = ac.probe_trait("core::alloc::GlobalAlloc");
     if has_feature || has_api {
         autocfg::emit("has_allocator");
     }

src/bincode.rs

@@ -20,9 +20,9 @@ impl<T: SmartStringMode> Encode for SmartString<T> {
     }
 }
 
-impl<T: SmartStringMode> Decode for SmartString<T> {
-    fn decode<D: Decoder>(decoder: &mut D) -> Result<Self, DecodeError> {
-        let bytes = <Vec<u8> as Decode>::decode(decoder)?;
+impl<Context, T: SmartStringMode> Decode<Context> for SmartString<T> {
+    fn decode<D: Decoder<Context = Context>>(decoder: &mut D) -> Result<Self, DecodeError> {
+        let bytes: Vec<u8> = <Vec<u8> as Decode<Context>>::decode(decoder)?;
         let string = String::from_utf8(bytes).map_err(|e| DecodeError::Utf8 {
             inner: e.utf8_error(),
         })?;