chore(clippy): address new pedantic lints in nightly

crates/hcl-primitives/src/error.rs

@@ -1,3 +1,4 @@
+#[cfg(not(feature = "std"))]
 use alloc::string::{String, ToString};
 use core::fmt;
 

crates/hcl-primitives/src/ident.rs

@@ -3,6 +3,7 @@
 use crate::{Error, InternalString};
 use alloc::borrow::{Borrow, Cow};
 use alloc::format;
+#[cfg(not(feature = "std"))]
 use alloc::string::String;
 use core::fmt;
 use core::ops;

crates/hcl-primitives/src/internal_string.rs

@@ -1,7 +1,9 @@
 //! Provides the `InternalString` type and associated functionality.
 
 use alloc::borrow::{Borrow, Cow};
+#[cfg(not(feature = "std"))]
 use alloc::boxed::Box;
+#[cfg(not(feature = "std"))]
 use alloc::string::String;
 use core::fmt;
 use core::ops::Deref;

crates/hcl-rs/src/expr/de.rs

@@ -2,7 +2,7 @@
 
 use super::*;
 use crate::de::{EnumAccess, FromStrVisitor, OptionDeserializer, VariantName};
-use crate::{Error, Identifier, Result};
+use crate::Error;
 use serde::de::value::{MapAccessDeserializer, StrDeserializer, StringDeserializer};
 use serde::de::{self, Expected, IntoDeserializer, Unexpected, VariantAccess};
 use serde::{forward_to_deserialize_any, Deserializer};

crates/hcl-rs/src/expr/ser/mod.rs

@@ -5,9 +5,8 @@ mod tests;
 
 use super::*;
 use crate::ser::{in_internal_serialization, InternalHandles, SerializeInternalHandleStruct};
-use crate::{format, Error, Identifier, Number, Result};
+use crate::Error;
 use serde::ser::{self, Impossible, SerializeMap};
-use std::fmt;
 
 const EXPR_HANDLE_MARKER: &str = "\x00$hcl::ExprHandle";