[INFO] fetching crate tokio-zookeeper 0.1.3...
[INFO] checking tokio-zookeeper-0.1.3 against beta for pr-78714
[INFO] extracting crate tokio-zookeeper 0.1.3 into /workspace/builds/worker-13/source
[INFO] validating manifest of crates.io crate tokio-zookeeper 0.1.3 on toolchain beta
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate tokio-zookeeper 0.1.3
[INFO] finished tweaking crates.io crate tokio-zookeeper 0.1.3
[INFO] tweaked toml for crates.io crate tokio-zookeeper 0.1.3 written to /workspace/builds/worker-13/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "rustops/crates-build-env@sha256:6eabd152ff4036248d66efda456a36cb33d24b7291b33f25f75140726c88da35" "/opt/rustwide/cargo-home/bin/cargo" "+beta" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] b581d65af78d2f797aeec4301a93e7350cc4196e7590fb00de47065d8f84439f
[INFO] running `Command { std: "docker" "start" "-a" "b581d65af78d2f797aeec4301a93e7350cc4196e7590fb00de47065d8f84439f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "b581d65af78d2f797aeec4301a93e7350cc4196e7590fb00de47065d8f84439f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b581d65af78d2f797aeec4301a93e7350cc4196e7590fb00de47065d8f84439f", kill_on_drop: false }`
[INFO] [stdout] b581d65af78d2f797aeec4301a93e7350cc4196e7590fb00de47065d8f84439f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "rustops/crates-build-env@sha256:6eabd152ff4036248d66efda456a36cb33d24b7291b33f25f75140726c88da35" "/opt/rustwide/cargo-home/bin/cargo" "+beta" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 2572e3c471de6c329f55a132aee3ed08ec6ac18713e1944fdf8bc4584967fddd
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "2572e3c471de6c329f55a132aee3ed08ec6ac18713e1944fdf8bc4584967fddd", kill_on_drop: false }`
[INFO] [stderr]     Checking slog-async v2.5.0
[INFO] [stderr]     Checking slog-term v2.6.0
[INFO] [stderr]     Checking tokio-zookeeper v0.1.3 (/opt/rustwide/workdir)
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/proto/request.rs:94:9
[INFO] [stdout]    |
[INFO] [stdout] 94 |         try!(writer.write_u8(*self));
[INFO] [stdout]    |         ^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/proto/request.rs:101:9
[INFO] [stdout]     |
[INFO] [stdout] 101 |         try!(writer.write_i32::<BigEndian>(self.len() as i32));
[INFO] [stdout]     |         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/proto/request.rs:108:9
[INFO] [stdout]     |
[INFO] [stdout] 108 |         try!(writer.write_i32::<BigEndian>(self.len() as i32));
[INFO] [stdout]     |         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/proto/response.rs:35:19
[INFO] [stdout]    |
[INFO] [stdout] 35 |         let len = try!(read.read_i32::<BigEndian>());
[INFO] [stdout]    |                   ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/proto/response.rs:38:24
[INFO] [stdout]    |
[INFO] [stdout] 38 |             items.push(try!(read.read_string()));
[INFO] [stdout]    |                        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/proto/response.rs:47:20
[INFO] [stdout]    |
[INFO] [stdout] 47 |             czxid: try!(read.read_i64::<BigEndian>()),
[INFO] [stdout]    |                    ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/proto/response.rs:48:20
[INFO] [stdout]    |
[INFO] [stdout] 48 |             mzxid: try!(read.read_i64::<BigEndian>()),
[INFO] [stdout]    |                    ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/proto/response.rs:49:20
[INFO] [stdout]    |
[INFO] [stdout] 49 |             ctime: try!(read.read_i64::<BigEndian>()),
[INFO] [stdout]    |                    ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/proto/response.rs:50:20
[INFO] [stdout]    |
[INFO] [stdout] 50 |             mtime: try!(read.read_i64::<BigEndian>()),
[INFO] [stdout]    |                    ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/proto/response.rs:51:22
[INFO] [stdout]    |
[INFO] [stdout] 51 |             version: try!(read.read_i32::<BigEndian>()),
[INFO] [stdout]    |                      ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/proto/response.rs:52:23
[INFO] [stdout]    |
[INFO] [stdout] 52 |             cversion: try!(read.read_i32::<BigEndian>()),
[INFO] [stdout]    |                       ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/proto/response.rs:53:23
[INFO] [stdout]    |
[INFO] [stdout] 53 |             aversion: try!(read.read_i32::<BigEndian>()),
[INFO] [stdout]    |                       ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/proto/response.rs:54:30
[INFO] [stdout]    |
[INFO] [stdout] 54 |             ephemeral_owner: try!(read.read_i64::<BigEndian>()),
[INFO] [stdout]    |                              ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/proto/response.rs:55:26
[INFO] [stdout]    |
[INFO] [stdout] 55 |             data_length: try!(read.read_i32::<BigEndian>()),
[INFO] [stdout]    |                          ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/proto/response.rs:56:27
[INFO] [stdout]    |
[INFO] [stdout] 56 |             num_children: try!(read.read_i32::<BigEndian>()),
[INFO] [stdout]    |                           ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/proto/response.rs:57:20
[INFO] [stdout]    |
[INFO] [stdout] 57 |             pzxid: try!(read.read_i64::<BigEndian>()),
[INFO] [stdout]    |                    ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/proto/response.rs:77:19
[INFO] [stdout]    |
[INFO] [stdout] 77 |         let len = try!(read.read_i32::<BigEndian>());
[INFO] [stdout]    |                   ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/proto/response.rs:80:24
[INFO] [stdout]    |
[INFO] [stdout] 80 |             items.push(try!(Acl::read_from(read)));
[INFO] [stdout]    |                        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/proto/response.rs:88:21
[INFO] [stdout]    |
[INFO] [stdout] 88 |         let perms = try!(Permission::read_from(read));
[INFO] [stdout]    |                     ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/proto/response.rs:89:22
[INFO] [stdout]    |
[INFO] [stdout] 89 |         let scheme = try!(read.read_string());
[INFO] [stdout]    |                      ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/proto/response.rs:90:18
[INFO] [stdout]    |
[INFO] [stdout] 90 |         let id = try!(read.read_string());
[INFO] [stdout]    |                  ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/proto/response.rs:97:33
[INFO] [stdout]    |
[INFO] [stdout] 97 |         Ok(Permission::from_raw(try!(read.read_u32::<BigEndian>())))
[INFO] [stdout]    |                                 ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/proto/response.rs:107:19
[INFO] [stdout]     |
[INFO] [stdout] 107 |         let len = try!(self.read_i32::<BigEndian>());
[INFO] [stdout]     |                   ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/proto/response.rs:110:20
[INFO] [stdout]     |
[INFO] [stdout] 110 |         let read = try!(self.read(&mut buf));
[INFO] [stdout]     |                    ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/proto/response.rs:128:19
[INFO] [stdout]     |
[INFO] [stdout] 128 |         let raw = try!(self.read_buffer());
[INFO] [stdout]     |                   ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/proto/mod.rs:544:22
[INFO] [stdout]     |
[INFO] [stdout] 544 |     Reconnecting(Box<Future<Item = ActivePacketizer<S>, Error = failure::Error> + Send + 'static>),
[INFO] [stdout]     |                      ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Future<Item = ActivePacketizer<S>, Error = failure::Error> + Send + 'static`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/proto/request.rs:94:9
[INFO] [stdout]    |
[INFO] [stdout] 94 |         try!(writer.write_u8(*self));
[INFO] [stdout]    |         ^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/proto/request.rs:101:9
[INFO] [stdout]     |
[INFO] [stdout] 101 |         try!(writer.write_i32::<BigEndian>(self.len() as i32));
[INFO] [stdout]     |         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/proto/request.rs:108:9
[INFO] [stdout]     |
[INFO] [stdout] 108 |         try!(writer.write_i32::<BigEndian>(self.len() as i32));
[INFO] [stdout]     |         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/proto/response.rs:35:19
[INFO] [stdout]    |
[INFO] [stdout] 35 |         let len = try!(read.read_i32::<BigEndian>());
[INFO] [stdout]    |                   ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/proto/response.rs:38:24
[INFO] [stdout]    |
[INFO] [stdout] 38 |             items.push(try!(read.read_string()));
[INFO] [stdout]    |                        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/proto/response.rs:47:20
[INFO] [stdout]    |
[INFO] [stdout] 47 |             czxid: try!(read.read_i64::<BigEndian>()),
[INFO] [stdout]    |                    ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/proto/response.rs:48:20
[INFO] [stdout]    |
[INFO] [stdout] 48 |             mzxid: try!(read.read_i64::<BigEndian>()),
[INFO] [stdout]    |                    ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/proto/response.rs:49:20
[INFO] [stdout]    |
[INFO] [stdout] 49 |             ctime: try!(read.read_i64::<BigEndian>()),
[INFO] [stdout]    |                    ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/proto/response.rs:50:20
[INFO] [stdout]    |
[INFO] [stdout] 50 |             mtime: try!(read.read_i64::<BigEndian>()),
[INFO] [stdout]    |                    ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/proto/response.rs:51:22
[INFO] [stdout]    |
[INFO] [stdout] 51 |             version: try!(read.read_i32::<BigEndian>()),
[INFO] [stdout]    |                      ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/proto/response.rs:52:23
[INFO] [stdout]    |
[INFO] [stdout] 52 |             cversion: try!(read.read_i32::<BigEndian>()),
[INFO] [stdout]    |                       ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/proto/response.rs:53:23
[INFO] [stdout]    |
[INFO] [stdout] 53 |             aversion: try!(read.read_i32::<BigEndian>()),
[INFO] [stdout]    |                       ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/proto/response.rs:54:30
[INFO] [stdout]    |
[INFO] [stdout] 54 |             ephemeral_owner: try!(read.read_i64::<BigEndian>()),
[INFO] [stdout]    |                              ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/proto/response.rs:55:26
[INFO] [stdout]    |
[INFO] [stdout] 55 |             data_length: try!(read.read_i32::<BigEndian>()),
[INFO] [stdout]    |                          ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/proto/response.rs:56:27
[INFO] [stdout]    |
[INFO] [stdout] 56 |             num_children: try!(read.read_i32::<BigEndian>()),
[INFO] [stdout]    |                           ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/proto/response.rs:57:20
[INFO] [stdout]    |
[INFO] [stdout] 57 |             pzxid: try!(read.read_i64::<BigEndian>()),
[INFO] [stdout]    |                    ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/proto/response.rs:77:19
[INFO] [stdout]    |
[INFO] [stdout] 77 |         let len = try!(read.read_i32::<BigEndian>());
[INFO] [stdout]    |                   ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/proto/response.rs:80:24
[INFO] [stdout]    |
[INFO] [stdout] 80 |             items.push(try!(Acl::read_from(read)));
[INFO] [stdout]    |                        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/proto/response.rs:88:21
[INFO] [stdout]    |
[INFO] [stdout] 88 |         let perms = try!(Permission::read_from(read));
[INFO] [stdout]    |                     ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/proto/response.rs:89:22
[INFO] [stdout]    |
[INFO] [stdout] 89 |         let scheme = try!(read.read_string());
[INFO] [stdout]    |                      ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/proto/response.rs:90:18
[INFO] [stdout]    |
[INFO] [stdout] 90 |         let id = try!(read.read_string());
[INFO] [stdout]    |                  ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/proto/response.rs:97:33
[INFO] [stdout]    |
[INFO] [stdout] 97 |         Ok(Permission::from_raw(try!(read.read_u32::<BigEndian>())))
[INFO] [stdout]    |                                 ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/proto/response.rs:107:19
[INFO] [stdout]     |
[INFO] [stdout] 107 |         let len = try!(self.read_i32::<BigEndian>());
[INFO] [stdout]     |                   ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/proto/response.rs:110:20
[INFO] [stdout]     |
[INFO] [stdout] 110 |         let read = try!(self.read(&mut buf));
[INFO] [stdout]     |                    ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/proto/response.rs:128:19
[INFO] [stdout]     |
[INFO] [stdout] 128 |         let raw = try!(self.read_buffer());
[INFO] [stdout]     |                   ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/proto/mod.rs:544:22
[INFO] [stdout]     |
[INFO] [stdout] 544 |     Reconnecting(Box<Future<Item = ActivePacketizer<S>, Error = failure::Error> + Send + 'static>),
[INFO] [stdout]     |                      ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Future<Item = ActivePacketizer<S>, Error = failure::Error> + Send + 'static`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused return value of `std::result::Result::<T, E>::is_ok` that must be used
[INFO] [stdout]    --> src/proto/mod.rs:455:25
[INFO] [stdout]     |
[INFO] [stdout] 455 |                         tx.send(Err(e)).is_ok();
[INFO] [stdout]     |                         ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout]     = note: if you intended to assert that this is ok, consider `.unwrap()` instead
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused return value of `std::result::Result::<T, E>::is_ok` that must be used
[INFO] [stdout]    --> src/proto/mod.rs:481:25
[INFO] [stdout]     |
[INFO] [stdout] 481 |                         tx.send(Ok(r)).is_ok(); // if receiver doesn't care, we don't either
[INFO] [stdout]     |                         ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: if you intended to assert that this is ok, consider `.unwrap()` instead
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused return value of `std::mem::replace` that must be used
[INFO] [stdout]    --> src/proto/mod.rs:565:9
[INFO] [stdout]     |
[INFO] [stdout] 565 |         mem::replace(self, PacketizerState::Connected(ap));
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: if you don't need the old value, you can just assign the new value directly
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused return value of `std::mem::replace` that must be used
[INFO] [stdout]    --> src/proto/mod.rs:731:21
[INFO] [stdout]     |
[INFO] [stdout] 731 | /                     mem::replace(
[INFO] [stdout] 732 | |                         &mut self.state,
[INFO] [stdout] 733 | |                         PacketizerState::Reconnecting(Box::new(retry)),
[INFO] [stdout] 734 | |                     );
[INFO] [stdout]     | |______________________^
[INFO] [stdout]     |
[INFO] [stdout]     = note: if you don't need the old value, you can just assign the new value directly
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 30 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused return value of `std::result::Result::<T, E>::is_ok` that must be used
[INFO] [stdout]    --> src/proto/mod.rs:455:25
[INFO] [stdout]     |
[INFO] [stdout] 455 |                         tx.send(Err(e)).is_ok();
[INFO] [stdout]     |                         ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout]     = note: if you intended to assert that this is ok, consider `.unwrap()` instead
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused return value of `std::result::Result::<T, E>::is_ok` that must be used
[INFO] [stdout]    --> src/proto/mod.rs:481:25
[INFO] [stdout]     |
[INFO] [stdout] 481 |                         tx.send(Ok(r)).is_ok(); // if receiver doesn't care, we don't either
[INFO] [stdout]     |                         ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: if you intended to assert that this is ok, consider `.unwrap()` instead
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused return value of `std::mem::replace` that must be used
[INFO] [stdout]    --> src/proto/mod.rs:565:9
[INFO] [stdout]     |
[INFO] [stdout] 565 |         mem::replace(self, PacketizerState::Connected(ap));
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: if you don't need the old value, you can just assign the new value directly
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused return value of `std::mem::replace` that must be used
[INFO] [stdout]    --> src/proto/mod.rs:731:21
[INFO] [stdout]     |
[INFO] [stdout] 731 | /                     mem::replace(
[INFO] [stdout] 732 | |                         &mut self.state,
[INFO] [stdout] 733 | |                         PacketizerState::Reconnecting(Box::new(retry)),
[INFO] [stdout] 734 | |                     );
[INFO] [stdout]     | |______________________^
[INFO] [stdout]     |
[INFO] [stdout]     = note: if you don't need the old value, you can just assign the new value directly
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 30 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 6.01s
[INFO] running `Command { std: "docker" "inspect" "2572e3c471de6c329f55a132aee3ed08ec6ac18713e1944fdf8bc4584967fddd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2572e3c471de6c329f55a132aee3ed08ec6ac18713e1944fdf8bc4584967fddd", kill_on_drop: false }`
[INFO] [stdout] 2572e3c471de6c329f55a132aee3ed08ec6ac18713e1944fdf8bc4584967fddd