Migrate from collections

src/syscall/debug.rs

@@ -1,6 +1,6 @@
 use core::mem;
 use core::ops::Range;
-use collections::{String, Vec};
+use alloc::{String, Vec};
 
 use super::data::{Stat, TimeSpec};
 use super::error::Result;

src/syscall/futex.rs

@@ -1,5 +1,5 @@
 use alloc::arc::Arc;
-use collections::VecDeque;
+use alloc::VecDeque;
 use core::intrinsics;
 use spin::{Once, RwLock, RwLockReadGuard, RwLockWriteGuard};
 

src/syscall/privilege.rs

@@ -1,4 +1,4 @@
-use collections::Vec;
+use alloc::Vec;
 
 use context;
 use scheme::{self, SchemeNamespace};

src/syscall/process.rs

@@ -2,7 +2,7 @@ use alloc::allocator::{Alloc, Layout};
 use alloc::arc::Arc;
 use alloc::boxed::Box;
 use alloc::heap::Heap;
-use collections::{BTreeMap, Vec};
+use alloc::{BTreeMap, Vec};
 use core::{intrinsics, mem, str};
 use core::ops::DerefMut;
 use spin::Mutex;