bump futures-preview and remove some "extern crates"

.travis.yml

@@ -5,7 +5,7 @@ dist: trusty
 language: rust
 cache: cargo
 rust:
-  - nightly-2019-01-09
+  - nightly
 
 env:
   global:

Cargo.toml

@@ -25,7 +25,7 @@ path = "./src/lib.rs"
 chrono = { version = "0.4", features = [ "serde" ] }
 data-encoding = "2.0.0-rc.2"
 derp = "0.0.11"
-futures-preview = { version = "0.3.0-alpha.11", features = [ "compat" ] }
+futures-preview = { version = "0.3.0-alpha.12", features = [ "compat" ] }
 http = "0.1"
 hyper = { version = "0.12", default-features = false }
 itoa = "0.4"

appveyor.yml

@@ -12,11 +12,11 @@ environment:
   matrix:
     # Rust - Nightly
     - TARGET: i686-pc-windows-gnu
-      RUST_VERSION: nightly-2019-01-09
+      RUST_VERSION: nightly
       BITS: 32
       MSYS2: 1
     - TARGET: x86_64-pc-windows-msvc
-      RUST_VERSION: nightly-2019-01-09
+      RUST_VERSION: nightly
       BITS: 64
 
 install:

src/lib.rs

@@ -119,7 +119,6 @@ pub mod metadata;
 pub mod repository;
 pub mod tuf;
 
-mod into_async_read;
 mod shims;
 mod util;
 

src/repository.rs

@@ -20,7 +20,6 @@ use tempfile::{self, NamedTempFile};
 use crate::crypto::{self, HashAlgorithm, HashValue};
 use crate::error::Error;
 use crate::interchange::DataInterchange;
-use crate::into_async_read::IntoAsyncRead;
 use crate::metadata::{
     Metadata, MetadataPath, MetadataVersion, SignedMetadata, TargetDescription, TargetPath,
 };
@@ -438,7 +437,7 @@ where
                     .map_err(|err| io::Error::new(io::ErrorKind::Other, err));
 
                 let mut reader = SafeReader::new(
-                    IntoAsyncRead::new(stream),
+                    stream.into_async_read(),
                     max_size.unwrap_or(::std::usize::MAX) as u64,
                     self.min_bytes_per_second,
                     hash_data,
@@ -477,7 +476,7 @@ where
                     .map_err(|err| io::Error::new(io::ErrorKind::Other, err));
 
                 let reader = SafeReader::new(
-                    IntoAsyncRead::new(stream),
+                    stream.into_async_read(),
                     target_description.size(),
                     self.min_bytes_per_second,
                     Some((alg, value.clone())),

tests/integration.rs

@@ -1,7 +1,4 @@
-#[macro_use]
-extern crate maplit;
-extern crate tuf;
-
+use maplit::hashset;
 use tuf::crypto::{HashAlgorithm, PrivateKey, SignatureScheme};
 use tuf::interchange::Json;
 use tuf::metadata::{

tests/simple_example.rs

@@ -1,9 +1,5 @@
 #![feature(async_await, await_macro, futures_api)]
 
-extern crate chrono;
-extern crate futures;
-extern crate tuf;
-
 use futures::executor::block_on;
 use tuf::client::{Client, Config, PathTranslator};
 use tuf::crypto::{HashAlgorithm, KeyId, PrivateKey, SignatureScheme};