fix nightly and warnings

src/common/stack.rs

@@ -1,5 +1,5 @@
 #[allow(unused_imports)]
-use crate::alloc::prelude::*;
+use crate::alloc::prelude::v1::*;
 
 use core::fmt;
 #[cfg(feature = "std")]

src/func.rs

@@ -1,5 +1,5 @@
 #[allow(unused_imports)]
-use crate::alloc::prelude::*;
+use crate::alloc::prelude::v1::*;
 use crate::alloc::rc::{Rc, Weak};
 use core::fmt;
 use crate::host::Externals;

src/imports.rs

@@ -1,5 +1,5 @@
 #[allow(unused_imports)]
-use crate::alloc::prelude::*;
+use crate::alloc::prelude::v1::*;
 
 #[cfg(not(feature = "std"))]
 use hashbrown::HashMap;

src/isa.rs

@@ -68,7 +68,7 @@
 //!
 
 #[allow(unused_imports)]
-use crate::alloc::prelude::*;
+use crate::alloc::prelude::v1::*;
 
 /// Should we keep a value before "discarding" a stack frame?
 ///

src/lib.rs

@@ -98,6 +98,7 @@
 #![cfg_attr(not(feature = "std"), no_std)]
 //// alloc is required in no_std
 #![cfg_attr(not(feature = "std"), feature(alloc))]
+#![cfg_attr(not(feature = "std"), feature(alloc_prelude))]
 
 #[cfg(not(feature = "std"))]
 #[macro_use]
@@ -121,7 +122,7 @@ extern crate memory_units as memory_units_crate;
 extern crate parity_wasm;
 
 #[allow(unused_imports)]
-use crate::alloc::prelude::*;
+use crate::alloc::prelude::v1::*;
 use core::fmt;
 #[cfg(feature = "std")]
 use std::error;

src/memory.rs

@@ -1,5 +1,5 @@
 #[allow(unused_imports)]
-use crate::alloc::prelude::*;
+use crate::alloc::prelude::v1::*;
 use crate::alloc::rc::Rc;
 use core::cell::{Cell, RefCell};
 use core::cmp;

src/module.rs

@@ -1,5 +1,5 @@
 #[allow(unused_imports)]
-use crate::alloc::prelude::*;
+use crate::alloc::prelude::v1::*;
 use crate::alloc::rc::Rc;
 use core::cell::RefCell;
 use core::fmt;

src/runner.rs

@@ -1,5 +1,5 @@
 #[allow(unused_imports)]
-use crate::alloc::prelude::*;
+use crate::alloc::prelude::v1::*;
 use crate::common::{DEFAULT_MEMORY_INDEX, DEFAULT_TABLE_INDEX};
 use core::fmt;
 use core::ops;

src/table.rs

@@ -1,5 +1,5 @@
 #[allow(unused_imports)]
-use crate::alloc::prelude::*;
+use crate::alloc::prelude::v1::*;
 use crate::alloc::rc::Rc;
 use core::cell::RefCell;
 use core::fmt;

src/validation/context.rs

@@ -1,5 +1,5 @@
 #[allow(unused_imports)]
-use crate::alloc::prelude::*;
+use crate::alloc::prelude::v1::*;
 use parity_wasm::elements::{
     BlockType, FunctionType, GlobalType, MemoryType, TableType, ValueType,
 };

src/validation/func.rs

@@ -1,5 +1,5 @@
 #[allow(unused_imports)]
-use crate::alloc::prelude::*;
+use crate::alloc::prelude::v1::*;
 use crate::common::{DEFAULT_MEMORY_INDEX, DEFAULT_TABLE_INDEX};
 use core::u32;
 use parity_wasm::elements::{BlockType, Func, FuncBody, Instruction, TableElementType, ValueType};

src/validation/mod.rs

@@ -1,5 +1,5 @@
 #[allow(unused_imports)]
-use crate::alloc::prelude::*;
+use crate::alloc::prelude::v1::*;
 use core::fmt;
 #[cfg(feature = "std")]
 use std::error;
@@ -150,8 +150,6 @@ pub fn deny_floating_point(module: &Module) -> Result<(), Error> {
     }
 
     if let (Some(sec), Some(types)) = (module.function_section(), module.type_section()) {
-        use parity_wasm::elements::{Type, ValueType};
-
         let types = types.types();
 
         for sig in sec.entries() {

src/validation/util.rs

@@ -1,5 +1,5 @@
 #[allow(unused_imports)]
-use crate::alloc::prelude::*;
+use crate::alloc::prelude::v1::*;
 use parity_wasm::elements::{Local, ValueType};
 use crate::validation::Error;