Could not compile futures-core-preview

[weiby3]

Codes are from Applied: HTTP Server.
OS: centos7

[weiby@login async_server]$ cargo --version
cargo 1.34.0-nightly (b33ce7fc9 2019-02-19)
[weiby@login async_server]$ rustc --version
rustc 1.34.0-nightly (e1c6d0057 2019-02-22)

cargo check output:

[weiby@login async_server]$ cargo run
    Updating `git://mirrors.ustc.edu.cn/crates.io-index` index
   Compiling semver-parser v0.7.0
   Compiling autocfg v0.1.2
   Compiling libc v0.2.49
   Compiling rand_core v0.4.0
   Compiling arrayvec v0.4.10
   Compiling proc-macro2 v0.4.27
   Compiling unicode-xid v0.1.0
   Compiling lazy_static v1.2.0
   Compiling byteorder v1.3.1
   Compiling stable_deref_trait v1.1.1
   Compiling cfg-if v0.1.6
   Compiling nodrop v0.1.13
   Compiling smallvec v0.6.9
   Compiling memoffset v0.2.1
   Compiling scopeguard v0.3.3
   Compiling either v1.5.1
   Compiling slab v0.4.2
   Compiling futures v0.1.25
   Compiling lazycell v1.2.1
   Compiling proc-macro-nested v0.1.2
   Compiling httparse v1.3.3
   Compiling pin-utils v0.1.0-alpha.4
   Compiling itoa v0.4.3
   Compiling fnv v1.0.6
   Compiling string v0.1.3
   Compiling indexmap v1.0.2
   Compiling try-lock v0.2.2
   Compiling log v0.4.6
   Compiling owning_ref v0.4.0
   Compiling crossbeam-utils v0.6.5
   Compiling futures-core-preview v0.3.0-alpha.12
   Compiling lock_api v0.1.5
error[E0432]: unresolved import `core::task::LocalWaker`
 --> /share/home/weiby/.cargo/registry/src/mirrors.ustc.edu.cn-61ef6e0cd06fb9b8/futures-core-preview-0.3.0-alpha.12/src/future/future_obj.rs:6:12
  |
6 |     task::{LocalWaker, Poll},
  |            ^^^^^^^^^^ no `LocalWaker` in `task`

error[E0432]: unresolved imports `core::task::LocalWaker`, `core::task::UnsafeWake`
 --> /share/home/weiby/.cargo/registry/src/mirrors.ustc.edu.cn-61ef6e0cd06fb9b8/futures-core-preview-0.3.0-alpha.12/src/task/mod.rs:8:35
  |
8 | pub use core::task::{Poll, Waker, LocalWaker, UnsafeWake};
  |                                   ^^^^^^^^^^  ^^^^^^^^^^ no `UnsafeWake` in `task`
  |                                   |
  |                                   no `LocalWaker` in `task`

error[E0432]: unresolved imports `std::task::Wake`, `std::task::local_waker`, `std::task::local_waker_from_nonlocal`
  --> /share/home/weiby/.cargo/registry/src/mirrors.ustc.edu.cn-61ef6e0cd06fb9b8/futures-core-preview-0.3.0-alpha.12/src/task/mod.rs:10:21
   |
10 | pub use std::task::{Wake, local_waker, local_waker_from_nonlocal};
   |                     ^^^^  ^^^^^^^^^^^  ^^^^^^^^^^^^^^^^^^^^^^^^^ no `local_waker_from_nonlocal` in `task`
   |                     |     |
   |                     |     no `local_waker` in `task`
   |                     no `Wake` in `task`. Did you mean to use `Waker`?

   Compiling rand_core v0.3.1
   Compiling rand_jitter v0.1.3
   Compiling rand_xorshift v0.1.1
   Compiling rand_isaac v0.1.1
   Compiling rand_hc v0.1.0
error: aborting due to 3 previous errors

For more information about this error, try `rustc --explain E0432`.
error: Could not compile `futures-core-preview`.
warning: build failed, waiting for other jobs to finish...
error: build failed

Related issue: https://github.com/rust-lang/async-book/issues/5

[taiki-e]

Please update the version of futures-core-preview to 0.3.0-alpha.13.

Related: #1453

[weiby3]

Updated. Also not works.

[weiby@login async_server]$ cargo check
    Updating `git://mirrors.ustc.edu.cn/crates.io-index` index
error: failed to select a version for `futures-preview`.
    ... required by package `async_server v0.1.0 (/share/home/weiby/code/rust/async_server)`
versions that meet the requirements `^0.3.0-alpha.13` are: 0.3.0-alpha.13

the package `async_server` depends on `futures-preview`, with features: `tokio-compat` but `futures-preview` does not have these features.


failed to select a version for `futures-preview` which could resolve this conflict

[taiki-e]

It seems that crate is using "tokio-compat" feature which has already been deleted (see: #1433).

I think that it will work if you remove dependence on "tokio-compat" feature.

[weiby3]

OK, it seems that the async book should be updated.
Thanks!