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    // Copyright 2017 The Rust Project Developers. See the COPYRIGHT
    // file at the top-level directory of this distribution and at
    // http://rust-lang.org/COPYRIGHT.
    //
    // Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or
    // http://www.apache.org/licenses/LICENSE-2.0> or the MIT license
    // <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your
    // option. This file may not be copied, modified, or distributed
    // except according to those terms.

    #![allow(unused_attributes)]
    #![unstable(feature = "collections",
                reason = "this library is unlikely to be stabilized in its current \
                          form or name",
                issue = "27783")]
    #![rustc_deprecated(since = "1.20.0",
                        reason = "collections moved to `alloc`")]
    #![doc(html_logo_url = "https://www.rust-lang.org/logos/rust-logo-128x128-blk-v2.png",
           html_favicon_url = "../../rust-logo-32x32-blk.png",
           html_root_url = "https://doc.rust-lang.org/nightly/",
           issue_tracker_base_url = "https://github.com/rust-lang/rust/issues/",
           test(no_crate_inject, attr(allow(unused_variables), deny(warnings))))]
    #![no_std]
    #![deny(warnings)]

    #![feature(alloc)]
    #![feature(collections_range)]
    #![feature(macro_reexport)]
    #![feature(staged_api)]

    //! Collection types
    //!
    //! See [`std::collections`](../std/collections/index.html) for a detailed
    //! discussion of collections in Rust.

    #[macro_reexport(vec, format)]
    extern crate alloc;

    pub use alloc::Bound;

    pub use alloc::binary_heap;
    pub use alloc::borrow;
    pub use alloc::fmt;
    pub use alloc::linked_list;
    pub use alloc::range;
    pub use alloc::slice;
    pub use alloc::str;
    pub use alloc::string;
    pub use alloc::vec;
    pub use alloc::vec_deque;

    pub use alloc::btree_map;
    pub use alloc::btree_set;

    #[doc(no_inline)]
    pub use alloc::binary_heap::BinaryHeap;
    #[doc(no_inline)]
    pub use alloc::btree_map::BTreeMap;
    #[doc(no_inline)]
    pub use alloc::btree_set::BTreeSet;
    #[doc(no_inline)]
    pub use alloc::linked_list::LinkedList;
    #[doc(no_inline)]
    pub use alloc::vec_deque::VecDeque;
    #[doc(no_inline)]
    pub use alloc::string::String;
    #[doc(no_inline)]
    pub use alloc::vec::Vec;

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