[INFO] fetching crate ipc 0.2.0...
[INFO] checking ipc-0.2.0 against master#30f74ff0dc4d66debc8b50724c446f817e5f75f4 for pr-121848-1
[INFO] extracting crate ipc 0.2.0 into /workspace/builds/worker-1-tc1/source
[INFO] validating manifest of crates.io crate ipc 0.2.0 on toolchain 30f74ff0dc4d66debc8b50724c446f817e5f75f4
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+30f74ff0dc4d66debc8b50724c446f817e5f75f4" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate ipc 0.2.0
[INFO] finished tweaking crates.io crate ipc 0.2.0
[INFO] tweaked toml for crates.io crate ipc 0.2.0 written to /workspace/builds/worker-1-tc1/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+30f74ff0dc4d66debc8b50724c446f817e5f75f4" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+30f74ff0dc4d66debc8b50724c446f817e5f75f4" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded rmp-serde v0.13.7
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+30f74ff0dc4d66debc8b50724c446f817e5f75f4" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 65a52ef8a66184f76c9fa7c68d811bee8b4bbb28d38188eac402d3a1e87dae8e
[INFO] running `Command { std: "docker" "start" "-a" "65a52ef8a66184f76c9fa7c68d811bee8b4bbb28d38188eac402d3a1e87dae8e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "65a52ef8a66184f76c9fa7c68d811bee8b4bbb28d38188eac402d3a1e87dae8e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "65a52ef8a66184f76c9fa7c68d811bee8b4bbb28d38188eac402d3a1e87dae8e", kill_on_drop: false }`
[INFO] [stdout] 65a52ef8a66184f76c9fa7c68d811bee8b4bbb28d38188eac402d3a1e87dae8e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/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" "RUSTDOCFLAGS=--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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+30f74ff0dc4d66debc8b50724c446f817e5f75f4" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 2d5d66d81f933d8d338be2631cd2ef08a9fc8867c72df411fdc8c5e32ad70d8b
[INFO] running `Command { std: "docker" "start" "-a" "2d5d66d81f933d8d338be2631cd2ef08a9fc8867c72df411fdc8c5e32ad70d8b", kill_on_drop: false }`
[INFO] [stderr]     Checking byteorder v1.5.0
[INFO] [stderr]    Compiling serde v1.0.197
[INFO] [stderr]     Checking futures v0.1.31
[INFO] [stderr]    Compiling num-traits v0.2.18
[INFO] [stderr]     Checking iovec v0.1.4
[INFO] [stderr]     Checking bytes v0.4.12
[INFO] [stderr]     Checking tokio-io v0.1.13
[INFO] [stderr]     Checking rmp v0.8.12
[INFO] [stderr]     Checking rmp-serde v0.13.7
[INFO] [stderr]     Checking ipc v0.2.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0557]: feature has been removed
[INFO] [stdout]  --> src/lib.rs:1:49
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(proc_macro, conservative_impl_trait, generators)]
[INFO] [stdout]   |                                                 ^^^^^^^^^^ feature has been removed
[INFO] [stdout]   |
[INFO] [stdout]   = note: renamed to `coroutines`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0557]: feature has been removed
[INFO] [stdout]  --> src/lib.rs:1:49
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(proc_macro, conservative_impl_trait, generators)]
[INFO] [stdout]   |                                                 ^^^^^^^^^^ feature has been removed
[INFO] [stdout]   |
[INFO] [stdout]   = note: renamed to `coroutines`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `ErrorKind` is imported redundantly
[INFO] [stdout]   --> src/platform/unix/unix_sock_stream.rs:39:13
[INFO] [stdout]    |
[INFO] [stdout] 10 | use std::io::{ Result, Error, Read, Write, ErrorKind };
[INFO] [stdout]    |                                            --------- the item `ErrorKind` is already imported here
[INFO] [stdout] ...
[INFO] [stdout] 39 |         use std::io::ErrorKind;
[INFO] [stdout]    |             ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `ErrorKind` is imported redundantly
[INFO] [stdout]    --> src/platform/unix/unix_sock_stream.rs:210:13
[INFO] [stdout]     |
[INFO] [stdout] 10  | use std::io::{ Result, Error, Read, Write, ErrorKind };
[INFO] [stdout]     |                                            --------- the item `ErrorKind` is already imported here
[INFO] [stdout] ...
[INFO] [stdout] 210 |         use std::io::ErrorKind;
[INFO] [stdout]     |             ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `ErrorKind` is imported redundantly
[INFO] [stdout]   --> src/platform/unix/unix_sock_seqpacket.rs:39:13
[INFO] [stdout]    |
[INFO] [stdout] 10 | use std::io::{ Result, Error, Read, Write, ErrorKind };
[INFO] [stdout]    |                                            --------- the item `ErrorKind` is already imported here
[INFO] [stdout] ...
[INFO] [stdout] 39 |         use std::io::ErrorKind;
[INFO] [stdout]    |             ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `ErrorKind` is imported redundantly
[INFO] [stdout]    --> src/platform/unix/unix_sock_seqpacket.rs:194:13
[INFO] [stdout]     |
[INFO] [stdout] 10  | use std::io::{ Result, Error, Read, Write, ErrorKind };
[INFO] [stdout]     |                                            --------- the item `ErrorKind` is already imported here
[INFO] [stdout] ...
[INFO] [stdout] 194 |         use std::io::ErrorKind;
[INFO] [stdout]     |             ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the feature `proc_macro` has been stable since 1.29.0 and no longer requires an attribute to enable
[INFO] [stdout]  --> src/lib.rs:1:12
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(proc_macro, conservative_impl_trait, generators)]
[INFO] [stdout]   |            ^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(stable_features)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the feature `conservative_impl_trait` has been stable since 1.26.0 and no longer requires an attribute to enable
[INFO] [stdout]  --> src/lib.rs:1:24
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(proc_macro, conservative_impl_trait, generators)]
[INFO] [stdout]   |                        ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/lib.rs:30:40
[INFO] [stdout]    |
[INFO] [stdout] 30 |     fn async_recv<'a>(&'a self) -> Box<Future<Item = Self::Item, Error = Error> + 'a>;
[INFO] [stdout]    |                                        ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout] help: if this is an object-safe trait, use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 30 |     fn async_recv<'a>(&'a self) -> Box<dyn Future<Item = Self::Item, Error = Error> + 'a>;
[INFO] [stdout]    |                                        +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/lib.rs:40:61
[INFO] [stdout]    |
[INFO] [stdout] 40 |     fn async_send<'a>(&'a self, to_send: Self::Item) -> Box<Future<Item = (), Error = Error> + 'a>;
[INFO] [stdout]    |                                                             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: if this is an object-safe trait, use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 40 |     fn async_send<'a>(&'a self, to_send: Self::Item) -> Box<dyn Future<Item = (), Error = Error> + 'a>;
[INFO] [stdout]    |                                                             +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/platform/unix/message_queue.rs:106:61
[INFO] [stdout]     |
[INFO] [stdout] 106 |     fn async_send<'a>(&'a self, to_send: Self::Item) -> Box<Future<Item = (), Error = Error> + 'a> {
[INFO] [stdout]     |                                                             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: if this is an object-safe trait, use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 106 |     fn async_send<'a>(&'a self, to_send: Self::Item) -> Box<dyn Future<Item = (), Error = Error> + 'a> {
[INFO] [stdout]     |                                                             +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/platform/unix/message_queue.rs:162:40
[INFO] [stdout]     |
[INFO] [stdout] 162 |     fn async_recv<'a>(&'a self) -> Box<Future<Item = Self::Item, Error = Error> + 'a> {
[INFO] [stdout]     |                                        ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: if this is an object-safe trait, use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 162 |     fn async_recv<'a>(&'a self) -> Box<dyn Future<Item = Self::Item, Error = Error> + 'a> {
[INFO] [stdout]     |                                        +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/platform/unix/unix_sock_stream.rs:131:40
[INFO] [stdout]     |
[INFO] [stdout] 131 |     fn async_recv<'a>(&'a self) -> Box<Future<Item = Self::Item, Error = Error> + 'a> {
[INFO] [stdout]     |                                        ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: if this is an object-safe trait, use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 131 |     fn async_recv<'a>(&'a self) -> Box<dyn Future<Item = Self::Item, Error = Error> + 'a> {
[INFO] [stdout]     |                                        +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/platform/unix/unix_sock_stream.rs:183:61
[INFO] [stdout]     |
[INFO] [stdout] 183 |     fn async_send<'a>(&'a self, to_send: Self::Item) -> Box<Future<Item = (), Error = Error> + 'a> { 
[INFO] [stdout]     |                                                             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: if this is an object-safe trait, use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 183 |     fn async_send<'a>(&'a self, to_send: Self::Item) -> Box<dyn Future<Item = (), Error = Error> + 'a> { 
[INFO] [stdout]     |                                                             +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/platform/unix/unix_sock_stream.rs:301:40
[INFO] [stdout]     |
[INFO] [stdout] 301 |     fn async_recv<'a>(&'a self) -> Box<Future<Item = Self::Item, Error = Error> + 'a> {
[INFO] [stdout]     |                                        ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: if this is an object-safe trait, use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 301 |     fn async_recv<'a>(&'a self) -> Box<dyn Future<Item = Self::Item, Error = Error> + 'a> {
[INFO] [stdout]     |                                        +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0432]: unresolved import `rand`
[INFO] [stdout]   --> src/lib.rs:47:9
[INFO] [stdout]    |
[INFO] [stdout] 47 |     use rand::random;
[INFO] [stdout]    |         ^^^^ maybe a missing crate `rand`?
[INFO] [stdout]    |
[INFO] [stdout]    = help: consider adding `extern crate rand` to use the `rand` crate
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/platform/unix/unix_sock_stream.rs:345:61
[INFO] [stdout]     |
[INFO] [stdout] 345 |     fn async_send<'a>(&'a self, to_send: Self::Item) -> Box<Future<Item = (), Error = Error> + 'a> { 
[INFO] [stdout]     |                                                             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: if this is an object-safe trait, use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 345 |     fn async_send<'a>(&'a self, to_send: Self::Item) -> Box<dyn Future<Item = (), Error = Error> + 'a> { 
[INFO] [stdout]     |                                                             +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/platform/unix/unix_sock_seqpacket.rs:149:52
[INFO] [stdout]     |
[INFO] [stdout] 149 |     fn async_send<'a>(&'a self, to_send: T) -> Box<Future<Item = (), Error = Error> + 'a> {
[INFO] [stdout]     |                                                    ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: if this is an object-safe trait, use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 149 |     fn async_send<'a>(&'a self, to_send: T) -> Box<dyn Future<Item = (), Error = Error> + 'a> {
[INFO] [stdout]     |                                                    +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/platform/unix/unix_sock_seqpacket.rs:170:40
[INFO] [stdout]     |
[INFO] [stdout] 170 |     fn async_recv<'a>(&'a self) -> Box<Future<Item = T, Error = Error> + 'a> {
[INFO] [stdout]     |                                        ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: if this is an object-safe trait, use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 170 |     fn async_recv<'a>(&'a self) -> Box<dyn Future<Item = T, Error = Error> + 'a> {
[INFO] [stdout]     |                                        +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/platform/unix/unix_sock_seqpacket.rs:276:40
[INFO] [stdout]     |
[INFO] [stdout] 276 |     fn async_recv<'a>(&'a self) -> Box<Future<Item = Self::Item, Error = Error> + 'a> {
[INFO] [stdout]     |                                        ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: if this is an object-safe trait, use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 276 |     fn async_recv<'a>(&'a self) -> Box<dyn Future<Item = Self::Item, Error = Error> + 'a> {
[INFO] [stdout]     |                                        +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/platform/unix/unix_sock_seqpacket.rs:317:61
[INFO] [stdout]     |
[INFO] [stdout] 317 |     fn async_send<'a>(&'a self, to_send: Self::Item) -> Box<Future<Item = (), Error = Error> + 'a> { 
[INFO] [stdout]     |                                                             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: if this is an object-safe trait, use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 317 |     fn async_send<'a>(&'a self, to_send: Self::Item) -> Box<dyn Future<Item = (), Error = Error> + 'a> { 
[INFO] [stdout]     |                                                             +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `ErrorKind` is imported redundantly
[INFO] [stdout]   --> src/platform/unix/unix_sock_stream.rs:39:13
[INFO] [stdout]    |
[INFO] [stdout] 10 | use std::io::{ Result, Error, Read, Write, ErrorKind };
[INFO] [stdout]    |                                            --------- the item `ErrorKind` is already imported here
[INFO] [stdout] ...
[INFO] [stdout] 39 |         use std::io::ErrorKind;
[INFO] [stdout]    |             ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `ErrorKind` is imported redundantly
[INFO] [stdout]    --> src/platform/unix/unix_sock_stream.rs:210:13
[INFO] [stdout]     |
[INFO] [stdout] 10  | use std::io::{ Result, Error, Read, Write, ErrorKind };
[INFO] [stdout]     |                                            --------- the item `ErrorKind` is already imported here
[INFO] [stdout] ...
[INFO] [stdout] 210 |         use std::io::ErrorKind;
[INFO] [stdout]     |             ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `ErrorKind` is imported redundantly
[INFO] [stdout]   --> src/platform/unix/unix_sock_seqpacket.rs:39:13
[INFO] [stdout]    |
[INFO] [stdout] 10 | use std::io::{ Result, Error, Read, Write, ErrorKind };
[INFO] [stdout]    |                                            --------- the item `ErrorKind` is already imported here
[INFO] [stdout] ...
[INFO] [stdout] 39 |         use std::io::ErrorKind;
[INFO] [stdout]    |             ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `ErrorKind` is imported redundantly
[INFO] [stdout]    --> src/platform/unix/unix_sock_seqpacket.rs:194:13
[INFO] [stdout]     |
[INFO] [stdout] 10  | use std::io::{ Result, Error, Read, Write, ErrorKind };
[INFO] [stdout]     |                                            --------- the item `ErrorKind` is already imported here
[INFO] [stdout] ...
[INFO] [stdout] 194 |         use std::io::ErrorKind;
[INFO] [stdout]     |             ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the feature `proc_macro` has been stable since 1.29.0 and no longer requires an attribute to enable
[INFO] [stdout]  --> src/lib.rs:1:12
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(proc_macro, conservative_impl_trait, generators)]
[INFO] [stdout]   |            ^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(stable_features)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the feature `conservative_impl_trait` has been stable since 1.26.0 and no longer requires an attribute to enable
[INFO] [stdout]  --> src/lib.rs:1:24
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(proc_macro, conservative_impl_trait, generators)]
[INFO] [stdout]   |                        ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/lib.rs:30:40
[INFO] [stdout]    |
[INFO] [stdout] 30 |     fn async_recv<'a>(&'a self) -> Box<Future<Item = Self::Item, Error = Error> + 'a>;
[INFO] [stdout]    |                                        ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout] help: if this is an object-safe trait, use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 30 |     fn async_recv<'a>(&'a self) -> Box<dyn Future<Item = Self::Item, Error = Error> + 'a>;
[INFO] [stdout]    |                                        +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/lib.rs:40:61
[INFO] [stdout]    |
[INFO] [stdout] 40 |     fn async_send<'a>(&'a self, to_send: Self::Item) -> Box<Future<Item = (), Error = Error> + 'a>;
[INFO] [stdout]    |                                                             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: if this is an object-safe trait, use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 40 |     fn async_send<'a>(&'a self, to_send: Self::Item) -> Box<dyn Future<Item = (), Error = Error> + 'a>;
[INFO] [stdout]    |                                                             +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/platform/unix/message_queue.rs:106:61
[INFO] [stdout]     |
[INFO] [stdout] 106 |     fn async_send<'a>(&'a self, to_send: Self::Item) -> Box<Future<Item = (), Error = Error> + 'a> {
[INFO] [stdout]     |                                                             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: if this is an object-safe trait, use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 106 |     fn async_send<'a>(&'a self, to_send: Self::Item) -> Box<dyn Future<Item = (), Error = Error> + 'a> {
[INFO] [stdout]     |                                                             +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/platform/unix/message_queue.rs:162:40
[INFO] [stdout]     |
[INFO] [stdout] 162 |     fn async_recv<'a>(&'a self) -> Box<Future<Item = Self::Item, Error = Error> + 'a> {
[INFO] [stdout]     |                                        ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: if this is an object-safe trait, use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 162 |     fn async_recv<'a>(&'a self) -> Box<dyn Future<Item = Self::Item, Error = Error> + 'a> {
[INFO] [stdout]     |                                        +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/platform/unix/unix_sock_stream.rs:131:40
[INFO] [stdout]     |
[INFO] [stdout] 131 |     fn async_recv<'a>(&'a self) -> Box<Future<Item = Self::Item, Error = Error> + 'a> {
[INFO] [stdout]     |                                        ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: if this is an object-safe trait, use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 131 |     fn async_recv<'a>(&'a self) -> Box<dyn Future<Item = Self::Item, Error = Error> + 'a> {
[INFO] [stdout]     |                                        +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/platform/unix/unix_sock_stream.rs:183:61
[INFO] [stdout]     |
[INFO] [stdout] 183 |     fn async_send<'a>(&'a self, to_send: Self::Item) -> Box<Future<Item = (), Error = Error> + 'a> { 
[INFO] [stdout]     |                                                             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: if this is an object-safe trait, use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 183 |     fn async_send<'a>(&'a self, to_send: Self::Item) -> Box<dyn Future<Item = (), Error = Error> + 'a> { 
[INFO] [stdout]     |                                                             +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/platform/unix/unix_sock_stream.rs:301:40
[INFO] [stdout]     |
[INFO] [stdout] 301 |     fn async_recv<'a>(&'a self) -> Box<Future<Item = Self::Item, Error = Error> + 'a> {
[INFO] [stdout]     |                                        ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: if this is an object-safe trait, use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 301 |     fn async_recv<'a>(&'a self) -> Box<dyn Future<Item = Self::Item, Error = Error> + 'a> {
[INFO] [stdout]     |                                        +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/platform/unix/unix_sock_stream.rs:345:61
[INFO] [stdout]     |
[INFO] [stdout] 345 |     fn async_send<'a>(&'a self, to_send: Self::Item) -> Box<Future<Item = (), Error = Error> + 'a> { 
[INFO] [stdout]     |                                                             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: if this is an object-safe trait, use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 345 |     fn async_send<'a>(&'a self, to_send: Self::Item) -> Box<dyn Future<Item = (), Error = Error> + 'a> { 
[INFO] [stdout]     |                                                             +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/platform/unix/unix_sock_seqpacket.rs:149:52
[INFO] [stdout]     |
[INFO] [stdout] 149 |     fn async_send<'a>(&'a self, to_send: T) -> Box<Future<Item = (), Error = Error> + 'a> {
[INFO] [stdout]     |                                                    ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: if this is an object-safe trait, use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 149 |     fn async_send<'a>(&'a self, to_send: T) -> Box<dyn Future<Item = (), Error = Error> + 'a> {
[INFO] [stdout]     |                                                    +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/platform/unix/unix_sock_seqpacket.rs:170:40
[INFO] [stdout]     |
[INFO] [stdout] 170 |     fn async_recv<'a>(&'a self) -> Box<Future<Item = T, Error = Error> + 'a> {
[INFO] [stdout]     |                                        ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: if this is an object-safe trait, use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 170 |     fn async_recv<'a>(&'a self) -> Box<dyn Future<Item = T, Error = Error> + 'a> {
[INFO] [stdout]     |                                        +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/platform/unix/unix_sock_seqpacket.rs:276:40
[INFO] [stdout]     |
[INFO] [stdout] 276 |     fn async_recv<'a>(&'a self) -> Box<Future<Item = Self::Item, Error = Error> + 'a> {
[INFO] [stdout]     |                                        ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: if this is an object-safe trait, use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 276 |     fn async_recv<'a>(&'a self) -> Box<dyn Future<Item = Self::Item, Error = Error> + 'a> {
[INFO] [stdout]     |                                        +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/platform/unix/unix_sock_seqpacket.rs:317:61
[INFO] [stdout]     |
[INFO] [stdout] 317 |     fn async_send<'a>(&'a self, to_send: Self::Item) -> Box<Future<Item = (), Error = Error> + 'a> { 
[INFO] [stdout]     |                                                             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: if this is an object-safe trait, use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 317 |     fn async_send<'a>(&'a self, to_send: Self::Item) -> Box<dyn Future<Item = (), Error = Error> + 'a> { 
[INFO] [stdout]     |                                                             +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: a method with this name may be added to the standard library in the future
[INFO] [stdout]    --> src/platform/unix/message_queue.rs:141:20
[INFO] [stdout]     |
[INFO] [stdout] 141 |         match self.read_buf(&mut buf) {
[INFO] [stdout]     |                    ^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: once this associated item is added to the standard library, the ambiguity may cause an error or change in behavior!
[INFO] [stdout]     = note: for more information, see issue #48919 <https://github.com/rust-lang/rust/issues/48919>
[INFO] [stdout]     = help: call with fully qualified syntax `tokio_io::AsyncRead::read_buf(...)` to keep using the current method
[INFO] [stdout]     = help: add `#![feature(read_buf)]` to the crate attributes to enable `std::io::Read::read_buf`
[INFO] [stdout]     = note: `#[warn(unstable_name_collisions)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: a method with this name may be added to the standard library in the future
[INFO] [stdout]    --> src/platform/unix/unix_sock_stream.rs:111:24
[INFO] [stdout]     |
[INFO] [stdout] 111 |             match self.read_buf(&mut buf) {
[INFO] [stdout]     |                        ^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: once this associated item is added to the standard library, the ambiguity may cause an error or change in behavior!
[INFO] [stdout]     = note: for more information, see issue #48919 <https://github.com/rust-lang/rust/issues/48919>
[INFO] [stdout]     = help: call with fully qualified syntax `tokio_io::AsyncRead::read_buf(...)` to keep using the current method
[INFO] [stdout]     = help: add `#![feature(read_buf)]` to the crate attributes to enable `std::io::Read::read_buf`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: a method with this name may be added to the standard library in the future
[INFO] [stdout]    --> src/platform/unix/message_queue.rs:141:20
[INFO] [stdout]     |
[INFO] [stdout] 141 |         match self.read_buf(&mut buf) {
[INFO] [stdout]     |                    ^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: once this associated item is added to the standard library, the ambiguity may cause an error or change in behavior!
[INFO] [stdout]     = note: for more information, see issue #48919 <https://github.com/rust-lang/rust/issues/48919>
[INFO] [stdout]     = help: call with fully qualified syntax `tokio_io::AsyncRead::read_buf(...)` to keep using the current method
[INFO] [stdout]     = help: add `#![feature(read_buf)]` to the crate attributes to enable `std::io::Read::read_buf`
[INFO] [stdout]     = note: `#[warn(unstable_name_collisions)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: a method with this name may be added to the standard library in the future
[INFO] [stdout]    --> src/platform/unix/unix_sock_stream.rs:281:24
[INFO] [stdout]     |
[INFO] [stdout] 281 |             match self.read_buf(&mut buf) {
[INFO] [stdout]     |                        ^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: once this associated item is added to the standard library, the ambiguity may cause an error or change in behavior!
[INFO] [stdout]     = note: for more information, see issue #48919 <https://github.com/rust-lang/rust/issues/48919>
[INFO] [stdout]     = help: call with fully qualified syntax `tokio_io::AsyncRead::read_buf(...)` to keep using the current method
[INFO] [stdout]     = help: add `#![feature(read_buf)]` to the crate attributes to enable `std::io::Read::read_buf`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: a method with this name may be added to the standard library in the future
[INFO] [stdout]    --> src/platform/unix/unix_sock_stream.rs:111:24
[INFO] [stdout]     |
[INFO] [stdout] 111 |             match self.read_buf(&mut buf) {
[INFO] [stdout]     |                        ^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: once this associated item is added to the standard library, the ambiguity may cause an error or change in behavior!
[INFO] [stdout]     = note: for more information, see issue #48919 <https://github.com/rust-lang/rust/issues/48919>
[INFO] [stdout]     = help: call with fully qualified syntax `tokio_io::AsyncRead::read_buf(...)` to keep using the current method
[INFO] [stdout]     = help: add `#![feature(read_buf)]` to the crate attributes to enable `std::io::Read::read_buf`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: a method with this name may be added to the standard library in the future
[INFO] [stdout]    --> src/platform/unix/unix_sock_seqpacket.rs:100:24
[INFO] [stdout]     |
[INFO] [stdout] 100 |             match self.read_buf(&mut buf) {
[INFO] [stdout]     |                        ^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: once this associated item is added to the standard library, the ambiguity may cause an error or change in behavior!
[INFO] [stdout]     = note: for more information, see issue #48919 <https://github.com/rust-lang/rust/issues/48919>
[INFO] [stdout]     = help: call with fully qualified syntax `tokio_io::AsyncRead::read_buf(...)` to keep using the current method
[INFO] [stdout]     = help: add `#![feature(read_buf)]` to the crate attributes to enable `std::io::Read::read_buf`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: a method with this name may be added to the standard library in the future
[INFO] [stdout]    --> src/platform/unix/unix_sock_seqpacket.rs:256:24
[INFO] [stdout]     |
[INFO] [stdout] 256 |             match self.read_buf(&mut buf) {
[INFO] [stdout]     |                        ^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: once this associated item is added to the standard library, the ambiguity may cause an error or change in behavior!
[INFO] [stdout]     = note: for more information, see issue #48919 <https://github.com/rust-lang/rust/issues/48919>
[INFO] [stdout]     = help: call with fully qualified syntax `tokio_io::AsyncRead::read_buf(...)` to keep using the current method
[INFO] [stdout]     = help: add `#![feature(read_buf)]` to the crate attributes to enable `std::io::Read::read_buf`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: a method with this name may be added to the standard library in the future
[INFO] [stdout]    --> src/platform/unix/unix_sock_stream.rs:281:24
[INFO] [stdout]     |
[INFO] [stdout] 281 |             match self.read_buf(&mut buf) {
[INFO] [stdout]     |                        ^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: once this associated item is added to the standard library, the ambiguity may cause an error or change in behavior!
[INFO] [stdout]     = note: for more information, see issue #48919 <https://github.com/rust-lang/rust/issues/48919>
[INFO] [stdout]     = help: call with fully qualified syntax `tokio_io::AsyncRead::read_buf(...)` to keep using the current method
[INFO] [stdout]     = help: add `#![feature(read_buf)]` to the crate attributes to enable `std::io::Read::read_buf`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: a method with this name may be added to the standard library in the future
[INFO] [stdout]    --> src/platform/unix/unix_sock_seqpacket.rs:100:24
[INFO] [stdout]     |
[INFO] [stdout] 100 |             match self.read_buf(&mut buf) {
[INFO] [stdout]     |                        ^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: once this associated item is added to the standard library, the ambiguity may cause an error or change in behavior!
[INFO] [stdout]     = note: for more information, see issue #48919 <https://github.com/rust-lang/rust/issues/48919>
[INFO] [stdout]     = help: call with fully qualified syntax `tokio_io::AsyncRead::read_buf(...)` to keep using the current method
[INFO] [stdout]     = help: add `#![feature(read_buf)]` to the crate attributes to enable `std::io::Read::read_buf`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: a method with this name may be added to the standard library in the future
[INFO] [stdout]    --> src/platform/unix/unix_sock_seqpacket.rs:256:24
[INFO] [stdout]     |
[INFO] [stdout] 256 |             match self.read_buf(&mut buf) {
[INFO] [stdout]     |                        ^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: once this associated item is added to the standard library, the ambiguity may cause an error or change in behavior!
[INFO] [stdout]     = note: for more information, see issue #48919 <https://github.com/rust-lang/rust/issues/48919>
[INFO] [stdout]     = help: call with fully qualified syntax `tokio_io::AsyncRead::read_buf(...)` to keep using the current method
[INFO] [stdout]     = help: add `#![feature(read_buf)]` to the crate attributes to enable `std::io::Read::read_buf`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0599]: no function or associated item named `channel` found for struct `platform::unix::message_queue::MessageQueue` in the current scope
[INFO] [stdout]   --> src/lib.rs:51:45
[INFO] [stdout]    |
[INFO] [stdout] 51 |         let (tx, rx) = MessageQueue::<i32>::channel().unwrap();
[INFO] [stdout]    |                                             ^^^^^^^ function or associated item not found in `MessageQueue<i32>`
[INFO] [stdout]    |
[INFO] [stdout]   ::: src/platform/unix/message_queue.rs:24:1
[INFO] [stdout]    |
[INFO] [stdout] 24 | pub struct MessageQueue<T> {
[INFO] [stdout]    | -------------------------- function or associated item `channel` not found for this struct
[INFO] [stdout]    |
[INFO] [stdout] note: if you're trying to build a new `platform::unix::message_queue::MessageQueue<i32>`, consider using `platform::unix::message_queue::MessageQueue::<T>::new` which returns `Result<platform::unix::message_queue::MessageQueue<_>, std::io::Error>`
[INFO] [stdout]   --> src/platform/unix/message_queue.rs:33:5
[INFO] [stdout]    |
[INFO] [stdout] 33 |     pub fn new<S: AsRef<str>>(name: S) -> Result<MessageQueue<T>> {
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0599]: no function or associated item named `channel` found for struct `platform::unix::message_queue::MessageQueue` in the current scope
[INFO] [stdout]   --> src/lib.rs:61:45
[INFO] [stdout]    |
[INFO] [stdout] 61 |         let (tx, rx) = MessageQueue::<i32>::channel().unwrap();
[INFO] [stdout]    |                                             ^^^^^^^ function or associated item not found in `MessageQueue<i32>`
[INFO] [stdout]    |
[INFO] [stdout]   ::: src/platform/unix/message_queue.rs:24:1
[INFO] [stdout]    |
[INFO] [stdout] 24 | pub struct MessageQueue<T> {
[INFO] [stdout]    | -------------------------- function or associated item `channel` not found for this struct
[INFO] [stdout]    |
[INFO] [stdout] note: if you're trying to build a new `platform::unix::message_queue::MessageQueue<i32>`, consider using `platform::unix::message_queue::MessageQueue::<T>::new` which returns `Result<platform::unix::message_queue::MessageQueue<_>, std::io::Error>`
[INFO] [stdout]   --> src/platform/unix/message_queue.rs:33:5
[INFO] [stdout]    |
[INFO] [stdout] 33 |     pub fn new<S: AsRef<str>>(name: S) -> Result<MessageQueue<T>> {
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0599]: no function or associated item named `channel` found for struct `platform::unix::message_queue::MessageQueue` in the current scope
[INFO] [stdout]   --> src/lib.rs:74:45
[INFO] [stdout]    |
[INFO] [stdout] 74 |         let (tx, rx) = MessageQueue::<i32>::channel().unwrap();
[INFO] [stdout]    |                                             ^^^^^^^ function or associated item not found in `MessageQueue<i32>`
[INFO] [stdout]    |
[INFO] [stdout]   ::: src/platform/unix/message_queue.rs:24:1
[INFO] [stdout]    |
[INFO] [stdout] 24 | pub struct MessageQueue<T> {
[INFO] [stdout]    | -------------------------- function or associated item `channel` not found for this struct
[INFO] [stdout]    |
[INFO] [stdout] note: if you're trying to build a new `platform::unix::message_queue::MessageQueue<i32>`, consider using `platform::unix::message_queue::MessageQueue::<T>::new` which returns `Result<platform::unix::message_queue::MessageQueue<_>, std::io::Error>`
[INFO] [stdout]   --> src/platform/unix/message_queue.rs:33:5
[INFO] [stdout]    |
[INFO] [stdout] 33 |     pub fn new<S: AsRef<str>>(name: S) -> Result<MessageQueue<T>> {
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0599]: no function or associated item named `channel` found for struct `platform::unix::message_queue::MessageQueue` in the current scope
[INFO] [stdout]   --> src/lib.rs:86:45
[INFO] [stdout]    |
[INFO] [stdout] 86 |         let (tx, rx) = MessageQueue::<i32>::channel().unwrap();
[INFO] [stdout]    |                                             ^^^^^^^ function or associated item not found in `MessageQueue<i32>`
[INFO] [stdout]    |
[INFO] [stdout]   ::: src/platform/unix/message_queue.rs:24:1
[INFO] [stdout]    |
[INFO] [stdout] 24 | pub struct MessageQueue<T> {
[INFO] [stdout]    | -------------------------- function or associated item `channel` not found for this struct
[INFO] [stdout]    |
[INFO] [stdout] note: if you're trying to build a new `platform::unix::message_queue::MessageQueue<i32>`, consider using `platform::unix::message_queue::MessageQueue::<T>::new` which returns `Result<platform::unix::message_queue::MessageQueue<_>, std::io::Error>`
[INFO] [stdout]   --> src/platform/unix/message_queue.rs:33:5
[INFO] [stdout]    |
[INFO] [stdout] 33 |     pub fn new<S: AsRef<str>>(name: S) -> Result<MessageQueue<T>> {
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 1 previous error; 23 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0557`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `ipc` (lib) due to 2 previous errors; 23 warnings emitted
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] error: aborting due to 6 previous errors; 23 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0432, E0557, E0599.
[INFO] [stdout] 
[INFO] [stdout] For more information about an error, try `rustc --explain E0432`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `ipc` (lib test) due to 7 previous errors; 23 warnings emitted
[INFO] running `Command { std: "docker" "inspect" "2d5d66d81f933d8d338be2631cd2ef08a9fc8867c72df411fdc8c5e32ad70d8b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2d5d66d81f933d8d338be2631cd2ef08a9fc8867c72df411fdc8c5e32ad70d8b", kill_on_drop: false }`
[INFO] [stdout] 2d5d66d81f933d8d338be2631cd2ef08a9fc8867c72df411fdc8c5e32ad70d8b
[INFO] checking ipc-0.2.0 against try#72eda894eb3548c7ba774079ce0afab42958d4ee for pr-121848-1
[INFO] extracting crate ipc 0.2.0 into /workspace/builds/worker-1-tc2/source
[INFO] validating manifest of crates.io crate ipc 0.2.0 on toolchain 72eda894eb3548c7ba774079ce0afab42958d4ee
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+72eda894eb3548c7ba774079ce0afab42958d4ee" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate ipc 0.2.0
[INFO] finished tweaking crates.io crate ipc 0.2.0
[INFO] tweaked toml for crates.io crate ipc 0.2.0 written to /workspace/builds/worker-1-tc2/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+72eda894eb3548c7ba774079ce0afab42958d4ee" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+72eda894eb3548c7ba774079ce0afab42958d4ee" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+72eda894eb3548c7ba774079ce0afab42958d4ee" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] a1473212198fbaa8f6855debeeea731dbb59434ce1397ac14a2eca81bba8c67f
[INFO] running `Command { std: "docker" "start" "-a" "a1473212198fbaa8f6855debeeea731dbb59434ce1397ac14a2eca81bba8c67f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "a1473212198fbaa8f6855debeeea731dbb59434ce1397ac14a2eca81bba8c67f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a1473212198fbaa8f6855debeeea731dbb59434ce1397ac14a2eca81bba8c67f", kill_on_drop: false }`
[INFO] [stdout] a1473212198fbaa8f6855debeeea731dbb59434ce1397ac14a2eca81bba8c67f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/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" "RUSTDOCFLAGS=--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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+72eda894eb3548c7ba774079ce0afab42958d4ee" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 8bc8e2850e969e6894f5c2b238eb193fbeae5d66b5e7cd9d49171f9207b92b25
[INFO] running `Command { std: "docker" "start" "-a" "8bc8e2850e969e6894f5c2b238eb193fbeae5d66b5e7cd9d49171f9207b92b25", kill_on_drop: false }`
[INFO] [stderr]    Compiling num-traits v0.2.18
[INFO] [stderr]     Checking byteorder v1.5.0
[INFO] [stderr]    Compiling serde v1.0.197
[INFO] [stderr]     Checking futures v0.1.31
[INFO] [stderr]     Checking iovec v0.1.4
[INFO] [stderr]     Checking bytes v0.4.12
[INFO] [stderr]     Checking tokio-io v0.1.13
[INFO] [stderr]     Checking rmp v0.8.12
[INFO] [stderr]     Checking rmp-serde v0.13.7
[INFO] [stderr]     Checking ipc v0.2.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0557]: feature has been removed
[INFO] [stdout]  --> src/lib.rs:1:49
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(proc_macro, conservative_impl_trait, generators)]
[INFO] [stdout]   |                                                 ^^^^^^^^^^ feature has been removed
[INFO] [stdout]   |
[INFO] [stdout]   = note: renamed to `coroutines`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0557]: feature has been removed
[INFO] [stdout]  --> src/lib.rs:1:49
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(proc_macro, conservative_impl_trait, generators)]
[INFO] [stdout]   |                                                 ^^^^^^^^^^ feature has been removed
[INFO] [stdout]   |
[INFO] [stdout]   = note: renamed to `coroutines`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `ErrorKind` is imported redundantly
[INFO] [stdout]   --> src/platform/unix/unix_sock_stream.rs:39:13
[INFO] [stdout]    |
[INFO] [stdout] 10 | use std::io::{ Result, Error, Read, Write, ErrorKind };
[INFO] [stdout]    |                                            --------- the item `ErrorKind` is already imported here
[INFO] [stdout] ...
[INFO] [stdout] 39 |         use std::io::ErrorKind;
[INFO] [stdout]    |             ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `ErrorKind` is imported redundantly
[INFO] [stdout]    --> src/platform/unix/unix_sock_stream.rs:210:13
[INFO] [stdout]     |
[INFO] [stdout] 10  | use std::io::{ Result, Error, Read, Write, ErrorKind };
[INFO] [stdout]     |                                            --------- the item `ErrorKind` is already imported here
[INFO] [stdout] ...
[INFO] [stdout] 210 |         use std::io::ErrorKind;
[INFO] [stdout]     |             ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `ErrorKind` is imported redundantly
[INFO] [stdout]   --> src/platform/unix/unix_sock_seqpacket.rs:39:13
[INFO] [stdout]    |
[INFO] [stdout] 10 | use std::io::{ Result, Error, Read, Write, ErrorKind };
[INFO] [stdout]    |                                            --------- the item `ErrorKind` is already imported here
[INFO] [stdout] ...
[INFO] [stdout] 39 |         use std::io::ErrorKind;
[INFO] [stdout]    |             ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `ErrorKind` is imported redundantly
[INFO] [stdout]    --> src/platform/unix/unix_sock_seqpacket.rs:194:13
[INFO] [stdout]     |
[INFO] [stdout] 10  | use std::io::{ Result, Error, Read, Write, ErrorKind };
[INFO] [stdout]     |                                            --------- the item `ErrorKind` is already imported here
[INFO] [stdout] ...
[INFO] [stdout] 194 |         use std::io::ErrorKind;
[INFO] [stdout]     |             ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the feature `proc_macro` has been stable since 1.29.0 and no longer requires an attribute to enable
[INFO] [stdout]  --> src/lib.rs:1:12
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(proc_macro, conservative_impl_trait, generators)]
[INFO] [stdout]   |            ^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(stable_features)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the feature `conservative_impl_trait` has been stable since 1.26.0 and no longer requires an attribute to enable
[INFO] [stdout]  --> src/lib.rs:1:24
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(proc_macro, conservative_impl_trait, generators)]
[INFO] [stdout]   |                        ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/lib.rs:30:40
[INFO] [stdout]    |
[INFO] [stdout] 30 |     fn async_recv<'a>(&'a self) -> Box<Future<Item = Self::Item, Error = Error> + 'a>;
[INFO] [stdout]    |                                        ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout] help: if this is an object-safe trait, use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 30 |     fn async_recv<'a>(&'a self) -> Box<dyn Future<Item = Self::Item, Error = Error> + 'a>;
[INFO] [stdout]    |                                        +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/lib.rs:40:61
[INFO] [stdout]    |
[INFO] [stdout] 40 |     fn async_send<'a>(&'a self, to_send: Self::Item) -> Box<Future<Item = (), Error = Error> + 'a>;
[INFO] [stdout]    |                                                             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: if this is an object-safe trait, use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 40 |     fn async_send<'a>(&'a self, to_send: Self::Item) -> Box<dyn Future<Item = (), Error = Error> + 'a>;
[INFO] [stdout]    |                                                             +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/platform/unix/message_queue.rs:106:61
[INFO] [stdout]     |
[INFO] [stdout] 106 |     fn async_send<'a>(&'a self, to_send: Self::Item) -> Box<Future<Item = (), Error = Error> + 'a> {
[INFO] [stdout]     |                                                             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: if this is an object-safe trait, use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 106 |     fn async_send<'a>(&'a self, to_send: Self::Item) -> Box<dyn Future<Item = (), Error = Error> + 'a> {
[INFO] [stdout]     |                                                             +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/platform/unix/message_queue.rs:162:40
[INFO] [stdout]     |
[INFO] [stdout] 162 |     fn async_recv<'a>(&'a self) -> Box<Future<Item = Self::Item, Error = Error> + 'a> {
[INFO] [stdout]     |                                        ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: if this is an object-safe trait, use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 162 |     fn async_recv<'a>(&'a self) -> Box<dyn Future<Item = Self::Item, Error = Error> + 'a> {
[INFO] [stdout]     |                                        +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/platform/unix/unix_sock_stream.rs:131:40
[INFO] [stdout]     |
[INFO] [stdout] 131 |     fn async_recv<'a>(&'a self) -> Box<Future<Item = Self::Item, Error = Error> + 'a> {
[INFO] [stdout]     |                                        ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: if this is an object-safe trait, use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 131 |     fn async_recv<'a>(&'a self) -> Box<dyn Future<Item = Self::Item, Error = Error> + 'a> {
[INFO] [stdout]     |                                        +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/platform/unix/unix_sock_stream.rs:183:61
[INFO] [stdout]     |
[INFO] [stdout] 183 |     fn async_send<'a>(&'a self, to_send: Self::Item) -> Box<Future<Item = (), Error = Error> + 'a> { 
[INFO] [stdout]     |                                                             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: if this is an object-safe trait, use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 183 |     fn async_send<'a>(&'a self, to_send: Self::Item) -> Box<dyn Future<Item = (), Error = Error> + 'a> { 
[INFO] [stdout]     |                                                             +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/platform/unix/unix_sock_stream.rs:301:40
[INFO] [stdout]     |
[INFO] [stdout] 301 |     fn async_recv<'a>(&'a self) -> Box<Future<Item = Self::Item, Error = Error> + 'a> {
[INFO] [stdout]     |                                        ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: if this is an object-safe trait, use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 301 |     fn async_recv<'a>(&'a self) -> Box<dyn Future<Item = Self::Item, Error = Error> + 'a> {
[INFO] [stdout]     |                                        +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/platform/unix/unix_sock_stream.rs:345:61
[INFO] [stdout]     |
[INFO] [stdout] 345 |     fn async_send<'a>(&'a self, to_send: Self::Item) -> Box<Future<Item = (), Error = Error> + 'a> { 
[INFO] [stdout]     |                                                             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: if this is an object-safe trait, use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 345 |     fn async_send<'a>(&'a self, to_send: Self::Item) -> Box<dyn Future<Item = (), Error = Error> + 'a> { 
[INFO] [stdout]     |                                                             +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/platform/unix/unix_sock_seqpacket.rs:149:52
[INFO] [stdout]     |
[INFO] [stdout] 149 |     fn async_send<'a>(&'a self, to_send: T) -> Box<Future<Item = (), Error = Error> + 'a> {
[INFO] [stdout]     |                                                    ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: if this is an object-safe trait, use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 149 |     fn async_send<'a>(&'a self, to_send: T) -> Box<dyn Future<Item = (), Error = Error> + 'a> {
[INFO] [stdout]     |                                                    +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/platform/unix/unix_sock_seqpacket.rs:170:40
[INFO] [stdout]     |
[INFO] [stdout] 170 |     fn async_recv<'a>(&'a self) -> Box<Future<Item = T, Error = Error> + 'a> {
[INFO] [stdout]     |                                        ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: if this is an object-safe trait, use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 170 |     fn async_recv<'a>(&'a self) -> Box<dyn Future<Item = T, Error = Error> + 'a> {
[INFO] [stdout]     |                                        +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/platform/unix/unix_sock_seqpacket.rs:276:40
[INFO] [stdout]     |
[INFO] [stdout] 276 |     fn async_recv<'a>(&'a self) -> Box<Future<Item = Self::Item, Error = Error> + 'a> {
[INFO] [stdout]     |                                        ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: if this is an object-safe trait, use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 276 |     fn async_recv<'a>(&'a self) -> Box<dyn Future<Item = Self::Item, Error = Error> + 'a> {
[INFO] [stdout]     |                                        +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0432]: unresolved import `rand`
[INFO] [stdout]   --> src/lib.rs:47:9
[INFO] [stdout]    |
[INFO] [stdout] 47 |     use rand::random;
[INFO] [stdout]    |         ^^^^ maybe a missing crate `rand`?
[INFO] [stdout]    |
[INFO] [stdout]    = help: consider adding `extern crate rand` to use the `rand` crate
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/platform/unix/unix_sock_seqpacket.rs:317:61
[INFO] [stdout]     |
[INFO] [stdout] 317 |     fn async_send<'a>(&'a self, to_send: Self::Item) -> Box<Future<Item = (), Error = Error> + 'a> { 
[INFO] [stdout]     |                                                             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: if this is an object-safe trait, use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 317 |     fn async_send<'a>(&'a self, to_send: Self::Item) -> Box<dyn Future<Item = (), Error = Error> + 'a> { 
[INFO] [stdout]     |                                                             +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `ErrorKind` is imported redundantly
[INFO] [stdout]   --> src/platform/unix/unix_sock_stream.rs:39:13
[INFO] [stdout]    |
[INFO] [stdout] 10 | use std::io::{ Result, Error, Read, Write, ErrorKind };
[INFO] [stdout]    |                                            --------- the item `ErrorKind` is already imported here
[INFO] [stdout] ...
[INFO] [stdout] 39 |         use std::io::ErrorKind;
[INFO] [stdout]    |             ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `ErrorKind` is imported redundantly
[INFO] [stdout]    --> src/platform/unix/unix_sock_stream.rs:210:13
[INFO] [stdout]     |
[INFO] [stdout] 10  | use std::io::{ Result, Error, Read, Write, ErrorKind };
[INFO] [stdout]     |                                            --------- the item `ErrorKind` is already imported here
[INFO] [stdout] ...
[INFO] [stdout] 210 |         use std::io::ErrorKind;
[INFO] [stdout]     |             ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `ErrorKind` is imported redundantly
[INFO] [stdout]   --> src/platform/unix/unix_sock_seqpacket.rs:39:13
[INFO] [stdout]    |
[INFO] [stdout] 10 | use std::io::{ Result, Error, Read, Write, ErrorKind };
[INFO] [stdout]    |                                            --------- the item `ErrorKind` is already imported here
[INFO] [stdout] ...
[INFO] [stdout] 39 |         use std::io::ErrorKind;
[INFO] [stdout]    |             ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `ErrorKind` is imported redundantly
[INFO] [stdout]    --> src/platform/unix/unix_sock_seqpacket.rs:194:13
[INFO] [stdout]     |
[INFO] [stdout] 10  | use std::io::{ Result, Error, Read, Write, ErrorKind };
[INFO] [stdout]     |                                            --------- the item `ErrorKind` is already imported here
[INFO] [stdout] ...
[INFO] [stdout] 194 |         use std::io::ErrorKind;
[INFO] [stdout]     |             ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the feature `proc_macro` has been stable since 1.29.0 and no longer requires an attribute to enable
[INFO] [stdout]  --> src/lib.rs:1:12
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(proc_macro, conservative_impl_trait, generators)]
[INFO] [stdout]   |            ^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(stable_features)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the feature `conservative_impl_trait` has been stable since 1.26.0 and no longer requires an attribute to enable
[INFO] [stdout]  --> src/lib.rs:1:24
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(proc_macro, conservative_impl_trait, generators)]
[INFO] [stdout]   |                        ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/lib.rs:30:40
[INFO] [stdout]    |
[INFO] [stdout] 30 |     fn async_recv<'a>(&'a self) -> Box<Future<Item = Self::Item, Error = Error> + 'a>;
[INFO] [stdout]    |                                        ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout] help: if this is an object-safe trait, use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 30 |     fn async_recv<'a>(&'a self) -> Box<dyn Future<Item = Self::Item, Error = Error> + 'a>;
[INFO] [stdout]    |                                        +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/lib.rs:40:61
[INFO] [stdout]    |
[INFO] [stdout] 40 |     fn async_send<'a>(&'a self, to_send: Self::Item) -> Box<Future<Item = (), Error = Error> + 'a>;
[INFO] [stdout]    |                                                             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: if this is an object-safe trait, use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 40 |     fn async_send<'a>(&'a self, to_send: Self::Item) -> Box<dyn Future<Item = (), Error = Error> + 'a>;
[INFO] [stdout]    |                                                             +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/platform/unix/message_queue.rs:106:61
[INFO] [stdout]     |
[INFO] [stdout] 106 |     fn async_send<'a>(&'a self, to_send: Self::Item) -> Box<Future<Item = (), Error = Error> + 'a> {
[INFO] [stdout]     |                                                             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: if this is an object-safe trait, use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 106 |     fn async_send<'a>(&'a self, to_send: Self::Item) -> Box<dyn Future<Item = (), Error = Error> + 'a> {
[INFO] [stdout]     |                                                             +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/platform/unix/message_queue.rs:162:40
[INFO] [stdout]     |
[INFO] [stdout] 162 |     fn async_recv<'a>(&'a self) -> Box<Future<Item = Self::Item, Error = Error> + 'a> {
[INFO] [stdout]     |                                        ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: if this is an object-safe trait, use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 162 |     fn async_recv<'a>(&'a self) -> Box<dyn Future<Item = Self::Item, Error = Error> + 'a> {
[INFO] [stdout]     |                                        +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/platform/unix/unix_sock_stream.rs:131:40
[INFO] [stdout]     |
[INFO] [stdout] 131 |     fn async_recv<'a>(&'a self) -> Box<Future<Item = Self::Item, Error = Error> + 'a> {
[INFO] [stdout]     |                                        ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: if this is an object-safe trait, use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 131 |     fn async_recv<'a>(&'a self) -> Box<dyn Future<Item = Self::Item, Error = Error> + 'a> {
[INFO] [stdout]     |                                        +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/platform/unix/unix_sock_stream.rs:183:61
[INFO] [stdout]     |
[INFO] [stdout] 183 |     fn async_send<'a>(&'a self, to_send: Self::Item) -> Box<Future<Item = (), Error = Error> + 'a> { 
[INFO] [stdout]     |                                                             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: if this is an object-safe trait, use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 183 |     fn async_send<'a>(&'a self, to_send: Self::Item) -> Box<dyn Future<Item = (), Error = Error> + 'a> { 
[INFO] [stdout]     |                                                             +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/platform/unix/unix_sock_stream.rs:301:40
[INFO] [stdout]     |
[INFO] [stdout] 301 |     fn async_recv<'a>(&'a self) -> Box<Future<Item = Self::Item, Error = Error> + 'a> {
[INFO] [stdout]     |                                        ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: if this is an object-safe trait, use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 301 |     fn async_recv<'a>(&'a self) -> Box<dyn Future<Item = Self::Item, Error = Error> + 'a> {
[INFO] [stdout]     |                                        +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/platform/unix/unix_sock_stream.rs:345:61
[INFO] [stdout]     |
[INFO] [stdout] 345 |     fn async_send<'a>(&'a self, to_send: Self::Item) -> Box<Future<Item = (), Error = Error> + 'a> { 
[INFO] [stdout]     |                                                             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: if this is an object-safe trait, use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 345 |     fn async_send<'a>(&'a self, to_send: Self::Item) -> Box<dyn Future<Item = (), Error = Error> + 'a> { 
[INFO] [stdout]     |                                                             +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/platform/unix/unix_sock_seqpacket.rs:149:52
[INFO] [stdout]     |
[INFO] [stdout] 149 |     fn async_send<'a>(&'a self, to_send: T) -> Box<Future<Item = (), Error = Error> + 'a> {
[INFO] [stdout]     |                                                    ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: if this is an object-safe trait, use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 149 |     fn async_send<'a>(&'a self, to_send: T) -> Box<dyn Future<Item = (), Error = Error> + 'a> {
[INFO] [stdout]     |                                                    +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/platform/unix/unix_sock_seqpacket.rs:170:40
[INFO] [stdout]     |
[INFO] [stdout] 170 |     fn async_recv<'a>(&'a self) -> Box<Future<Item = T, Error = Error> + 'a> {
[INFO] [stdout]     |                                        ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: if this is an object-safe trait, use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 170 |     fn async_recv<'a>(&'a self) -> Box<dyn Future<Item = T, Error = Error> + 'a> {
[INFO] [stdout]     |                                        +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/platform/unix/unix_sock_seqpacket.rs:276:40
[INFO] [stdout]     |
[INFO] [stdout] 276 |     fn async_recv<'a>(&'a self) -> Box<Future<Item = Self::Item, Error = Error> + 'a> {
[INFO] [stdout]     |                                        ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: if this is an object-safe trait, use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 276 |     fn async_recv<'a>(&'a self) -> Box<dyn Future<Item = Self::Item, Error = Error> + 'a> {
[INFO] [stdout]     |                                        +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/platform/unix/unix_sock_seqpacket.rs:317:61
[INFO] [stdout]     |
[INFO] [stdout] 317 |     fn async_send<'a>(&'a self, to_send: Self::Item) -> Box<Future<Item = (), Error = Error> + 'a> { 
[INFO] [stdout]     |                                                             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: if this is an object-safe trait, use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 317 |     fn async_send<'a>(&'a self, to_send: Self::Item) -> Box<dyn Future<Item = (), Error = Error> + 'a> { 
[INFO] [stdout]     |                                                             +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: a method with this name may be added to the standard library in the future
[INFO] [stdout]    --> src/platform/unix/message_queue.rs:141:20
[INFO] [stdout]     |
[INFO] [stdout] 141 |         match self.read_buf(&mut buf) {
[INFO] [stdout]     |                    ^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: once this associated item is added to the standard library, the ambiguity may cause an error or change in behavior!
[INFO] [stdout]     = note: for more information, see issue #48919 <https://github.com/rust-lang/rust/issues/48919>
[INFO] [stdout]     = help: call with fully qualified syntax `tokio_io::AsyncRead::read_buf(...)` to keep using the current method
[INFO] [stdout]     = help: add `#![feature(read_buf)]` to the crate attributes to enable `std::io::Read::read_buf`
[INFO] [stdout]     = note: `#[warn(unstable_name_collisions)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: a method with this name may be added to the standard library in the future
[INFO] [stdout]    --> src/platform/unix/message_queue.rs:141:20
[INFO] [stdout]     |
[INFO] [stdout] 141 |         match self.read_buf(&mut buf) {
[INFO] [stdout]     |                    ^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: once this associated item is added to the standard library, the ambiguity may cause an error or change in behavior!
[INFO] [stdout]     = note: for more information, see issue #48919 <https://github.com/rust-lang/rust/issues/48919>
[INFO] [stdout]     = help: call with fully qualified syntax `tokio_io::AsyncRead::read_buf(...)` to keep using the current method
[INFO] [stdout]     = help: add `#![feature(read_buf)]` to the crate attributes to enable `std::io::Read::read_buf`
[INFO] [stdout]     = note: `#[warn(unstable_name_collisions)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: a method with this name may be added to the standard library in the future
[INFO] [stdout]    --> src/platform/unix/unix_sock_stream.rs:111:24
[INFO] [stdout]     |
[INFO] [stdout] 111 |             match self.read_buf(&mut buf) {
[INFO] [stdout]     |                        ^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: once this associated item is added to the standard library, the ambiguity may cause an error or change in behavior!
[INFO] [stdout]     = note: for more information, see issue #48919 <https://github.com/rust-lang/rust/issues/48919>
[INFO] [stdout]     = help: call with fully qualified syntax `tokio_io::AsyncRead::read_buf(...)` to keep using the current method
[INFO] [stdout]     = help: add `#![feature(read_buf)]` to the crate attributes to enable `std::io::Read::read_buf`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: a method with this name may be added to the standard library in the future
[INFO] [stdout]    --> src/platform/unix/unix_sock_stream.rs:111:24
[INFO] [stdout]     |
[INFO] [stdout] 111 |             match self.read_buf(&mut buf) {
[INFO] [stdout]     |                        ^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: once this associated item is added to the standard library, the ambiguity may cause an error or change in behavior!
[INFO] [stdout]     = note: for more information, see issue #48919 <https://github.com/rust-lang/rust/issues/48919>
[INFO] [stdout]     = help: call with fully qualified syntax `tokio_io::AsyncRead::read_buf(...)` to keep using the current method
[INFO] [stdout]     = help: add `#![feature(read_buf)]` to the crate attributes to enable `std::io::Read::read_buf`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: a method with this name may be added to the standard library in the future
[INFO] [stdout]    --> src/platform/unix/unix_sock_stream.rs:281:24
[INFO] [stdout]     |
[INFO] [stdout] 281 |             match self.read_buf(&mut buf) {
[INFO] [stdout]     |                        ^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: once this associated item is added to the standard library, the ambiguity may cause an error or change in behavior!
[INFO] [stdout]     = note: for more information, see issue #48919 <https://github.com/rust-lang/rust/issues/48919>
[INFO] [stdout]     = help: call with fully qualified syntax `tokio_io::AsyncRead::read_buf(...)` to keep using the current method
[INFO] [stdout]     = help: add `#![feature(read_buf)]` to the crate attributes to enable `std::io::Read::read_buf`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: a method with this name may be added to the standard library in the future
[INFO] [stdout]    --> src/platform/unix/unix_sock_stream.rs:281:24
[INFO] [stdout]     |
[INFO] [stdout] 281 |             match self.read_buf(&mut buf) {
[INFO] [stdout]     |                        ^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: once this associated item is added to the standard library, the ambiguity may cause an error or change in behavior!
[INFO] [stdout]     = note: for more information, see issue #48919 <https://github.com/rust-lang/rust/issues/48919>
[INFO] [stdout]     = help: call with fully qualified syntax `tokio_io::AsyncRead::read_buf(...)` to keep using the current method
[INFO] [stdout]     = help: add `#![feature(read_buf)]` to the crate attributes to enable `std::io::Read::read_buf`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: a method with this name may be added to the standard library in the future
[INFO] [stdout]    --> src/platform/unix/unix_sock_seqpacket.rs:100:24
[INFO] [stdout]     |
[INFO] [stdout] 100 |             match self.read_buf(&mut buf) {
[INFO] [stdout]     |                        ^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: once this associated item is added to the standard library, the ambiguity may cause an error or change in behavior!
[INFO] [stdout]     = note: for more information, see issue #48919 <https://github.com/rust-lang/rust/issues/48919>
[INFO] [stdout]     = help: call with fully qualified syntax `tokio_io::AsyncRead::read_buf(...)` to keep using the current method
[INFO] [stdout]     = help: add `#![feature(read_buf)]` to the crate attributes to enable `std::io::Read::read_buf`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: a method with this name may be added to the standard library in the future
[INFO] [stdout]    --> src/platform/unix/unix_sock_seqpacket.rs:100:24
[INFO] [stdout]     |
[INFO] [stdout] 100 |             match self.read_buf(&mut buf) {
[INFO] [stdout]     |                        ^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: once this associated item is added to the standard library, the ambiguity may cause an error or change in behavior!
[INFO] [stdout]     = note: for more information, see issue #48919 <https://github.com/rust-lang/rust/issues/48919>
[INFO] [stdout]     = help: call with fully qualified syntax `tokio_io::AsyncRead::read_buf(...)` to keep using the current method
[INFO] [stdout]     = help: add `#![feature(read_buf)]` to the crate attributes to enable `std::io::Read::read_buf`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: a method with this name may be added to the standard library in the future
[INFO] [stdout]    --> src/platform/unix/unix_sock_seqpacket.rs:256:24
[INFO] [stdout]     |
[INFO] [stdout] 256 |             match self.read_buf(&mut buf) {
[INFO] [stdout]     |                        ^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: once this associated item is added to the standard library, the ambiguity may cause an error or change in behavior!
[INFO] [stdout]     = note: for more information, see issue #48919 <https://github.com/rust-lang/rust/issues/48919>
[INFO] [stdout]     = help: call with fully qualified syntax `tokio_io::AsyncRead::read_buf(...)` to keep using the current method
[INFO] [stdout]     = help: add `#![feature(read_buf)]` to the crate attributes to enable `std::io::Read::read_buf`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: a method with this name may be added to the standard library in the future
[INFO] [stdout]    --> src/platform/unix/unix_sock_seqpacket.rs:256:24
[INFO] [stdout]     |
[INFO] [stdout] 256 |             match self.read_buf(&mut buf) {
[INFO] [stdout]     |                        ^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: once this associated item is added to the standard library, the ambiguity may cause an error or change in behavior!
[INFO] [stdout]     = note: for more information, see issue #48919 <https://github.com/rust-lang/rust/issues/48919>
[INFO] [stdout]     = help: call with fully qualified syntax `tokio_io::AsyncRead::read_buf(...)` to keep using the current method
[INFO] [stdout]     = help: add `#![feature(read_buf)]` to the crate attributes to enable `std::io::Read::read_buf`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0599]: no function or associated item named `channel` found for struct `platform::unix::message_queue::MessageQueue` in the current scope
[INFO] [stdout]   --> src/lib.rs:51:45
[INFO] [stdout]    |
[INFO] [stdout] 51 |         let (tx, rx) = MessageQueue::<i32>::channel().unwrap();
[INFO] [stdout]    |                                             ^^^^^^^ function or associated item not found in `MessageQueue<i32>`
[INFO] [stdout]    |
[INFO] [stdout]   ::: src/platform/unix/message_queue.rs:24:1
[INFO] [stdout]    |
[INFO] [stdout] 24 | pub struct MessageQueue<T> {
[INFO] [stdout]    | -------------------------- function or associated item `channel` not found for this struct
[INFO] [stdout]    |
[INFO] [stdout] note: if you're trying to build a new `platform::unix::message_queue::MessageQueue<i32>`, consider using `platform::unix::message_queue::MessageQueue::<T>::new` which returns `Result<platform::unix::message_queue::MessageQueue<_>, std::io::Error>`
[INFO] [stdout]   --> src/platform/unix/message_queue.rs:33:5
[INFO] [stdout]    |
[INFO] [stdout] 33 |     pub fn new<S: AsRef<str>>(name: S) -> Result<MessageQueue<T>> {
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0599]: no function or associated item named `channel` found for struct `platform::unix::message_queue::MessageQueue` in the current scope
[INFO] [stdout]   --> src/lib.rs:61:45
[INFO] [stdout]    |
[INFO] [stdout] 61 |         let (tx, rx) = MessageQueue::<i32>::channel().unwrap();
[INFO] [stdout]    |                                             ^^^^^^^ function or associated item not found in `MessageQueue<i32>`
[INFO] [stdout]    |
[INFO] [stdout]   ::: src/platform/unix/message_queue.rs:24:1
[INFO] [stdout]    |
[INFO] [stdout] 24 | pub struct MessageQueue<T> {
[INFO] [stdout]    | -------------------------- function or associated item `channel` not found for this struct
[INFO] [stdout]    |
[INFO] [stdout] note: if you're trying to build a new `platform::unix::message_queue::MessageQueue<i32>`, consider using `platform::unix::message_queue::MessageQueue::<T>::new` which returns `Result<platform::unix::message_queue::MessageQueue<_>, std::io::Error>`
[INFO] [stdout]   --> src/platform/unix/message_queue.rs:33:5
[INFO] [stdout]    |
[INFO] [stdout] 33 |     pub fn new<S: AsRef<str>>(name: S) -> Result<MessageQueue<T>> {
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0599]: no function or associated item named `channel` found for struct `platform::unix::message_queue::MessageQueue` in the current scope
[INFO] [stdout]   --> src/lib.rs:74:45
[INFO] [stdout]    |
[INFO] [stdout] 74 |         let (tx, rx) = MessageQueue::<i32>::channel().unwrap();
[INFO] [stdout]    |                                             ^^^^^^^ function or associated item not found in `MessageQueue<i32>`
[INFO] [stdout]    |
[INFO] [stdout]   ::: src/platform/unix/message_queue.rs:24:1
[INFO] [stdout]    |
[INFO] [stdout] 24 | pub struct MessageQueue<T> {
[INFO] [stdout]    | -------------------------- function or associated item `channel` not found for this struct
[INFO] [stdout]    |
[INFO] [stdout] note: if you're trying to build a new `platform::unix::message_queue::MessageQueue<i32>`, consider using `platform::unix::message_queue::MessageQueue::<T>::new` which returns `Result<platform::unix::message_queue::MessageQueue<_>, std::io::Error>`
[INFO] [stdout]   --> src/platform/unix/message_queue.rs:33:5
[INFO] [stdout]    |
[INFO] [stdout] 33 |     pub fn new<S: AsRef<str>>(name: S) -> Result<MessageQueue<T>> {
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0599]: no function or associated item named `channel` found for struct `platform::unix::message_queue::MessageQueue` in the current scope
[INFO] [stdout]   --> src/lib.rs:86:45
[INFO] [stdout]    |
[INFO] [stdout] 86 |         let (tx, rx) = MessageQueue::<i32>::channel().unwrap();
[INFO] [stdout]    |                                             ^^^^^^^ function or associated item not found in `MessageQueue<i32>`
[INFO] [stdout]    |
[INFO] [stdout]   ::: src/platform/unix/message_queue.rs:24:1
[INFO] [stdout]    |
[INFO] [stdout] 24 | pub struct MessageQueue<T> {
[INFO] [stdout]    | -------------------------- function or associated item `channel` not found for this struct
[INFO] [stdout]    |
[INFO] [stdout] note: if you're trying to build a new `platform::unix::message_queue::MessageQueue<i32>`, consider using `platform::unix::message_queue::MessageQueue::<T>::new` which returns `Result<platform::unix::message_queue::MessageQueue<_>, std::io::Error>`
[INFO] [stdout]   --> src/platform/unix/message_queue.rs:33:5
[INFO] [stdout]    |
[INFO] [stdout] 33 |     pub fn new<S: AsRef<str>>(name: S) -> Result<MessageQueue<T>> {
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 1 previous error; 23 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0557`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `ipc` (lib) due to 2 previous errors; 23 warnings emitted
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] error: aborting due to 6 previous errors; 23 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0432, E0557, E0599.
[INFO] [stdout] 
[INFO] [stdout] For more information about an error, try `rustc --explain E0432`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `ipc` (lib test) due to 7 previous errors; 23 warnings emitted
[INFO] running `Command { std: "docker" "inspect" "8bc8e2850e969e6894f5c2b238eb193fbeae5d66b5e7cd9d49171f9207b92b25", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8bc8e2850e969e6894f5c2b238eb193fbeae5d66b5e7cd9d49171f9207b92b25", kill_on_drop: false }`
[INFO] [stdout] 8bc8e2850e969e6894f5c2b238eb193fbeae5d66b5e7cd9d49171f9207b92b25
