[INFO] fetching crate parallel-event-emitter 0.2.4...
[INFO] checking parallel-event-emitter-0.2.4 against try#b1f2594eac607c1f051534800237eeedb5590a49 for pr-139493-3
[INFO] extracting crate parallel-event-emitter 0.2.4 into /workspace/builds/worker-5-tc2/source
[INFO] started tweaking crates.io crate parallel-event-emitter 0.2.4
[INFO] finished tweaking crates.io crate parallel-event-emitter 0.2.4
[INFO] tweaked toml for crates.io crate parallel-event-emitter 0.2.4 written to /workspace/builds/worker-5-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate parallel-event-emitter 0.2.4 on toolchain b1f2594eac607c1f051534800237eeedb5590a49
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+b1f2594eac607c1f051534800237eeedb5590a49" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+b1f2594eac607c1f051534800237eeedb5590a49" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 22 packages to latest compatible versions
[INFO] [stderr]       Adding futures v0.1.31 (available: v0.3.31)
[INFO] [stderr]       Adding thread-id v3.3.0 (available: v5.0.0)
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+b1f2594eac607c1f051534800237eeedb5590a49" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr] warning: no edition set: defaulting to the 2015 edition while the latest is 2024
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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:aa71247004a7fa38d13ec170f48f06cdedf5bc50b2a8645e56ed7e992e6fa513" "/opt/rustwide/cargo-home/bin/cargo" "+b1f2594eac607c1f051534800237eeedb5590a49" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] c9af54be186a7fae53e943d814b8c605b95fab5251f3325d7b33e2e39c8bfcd3
[INFO] running `Command { std: "docker" "start" "-a" "c9af54be186a7fae53e943d814b8c605b95fab5251f3325d7b33e2e39c8bfcd3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "c9af54be186a7fae53e943d814b8c605b95fab5251f3325d7b33e2e39c8bfcd3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c9af54be186a7fae53e943d814b8c605b95fab5251f3325d7b33e2e39c8bfcd3", kill_on_drop: false }`
[INFO] [stdout] c9af54be186a7fae53e943d814b8c605b95fab5251f3325d7b33e2e39c8bfcd3
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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:aa71247004a7fa38d13ec170f48f06cdedf5bc50b2a8645e56ed7e992e6fa513" "/opt/rustwide/cargo-home/bin/cargo" "+b1f2594eac607c1f051534800237eeedb5590a49" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 592d16763cdfa5bde2108ce5f75374e2e51ce6ee71c9732c50117b164834f2e8
[INFO] running `Command { std: "docker" "start" "-a" "592d16763cdfa5bde2108ce5f75374e2e51ce6ee71c9732c50117b164834f2e8", kill_on_drop: false }`
[INFO] [stderr] warning: no edition set: defaulting to the 2015 edition while the latest is 2024
[INFO] [stderr]    Compiling object v0.37.3
[INFO] [stderr]     Checking gimli v0.32.3
[INFO] [stderr]     Checking memchr v2.7.6
[INFO] [stderr]     Checking rustc-demangle v0.1.26
[INFO] [stderr]     Checking num_cpus v1.17.0
[INFO] [stderr]     Checking thread-id v3.3.0
[INFO] [stderr]     Checking futures-cpupool v0.1.8
[INFO] [stderr]     Checking addr2line v0.25.1
[INFO] [stderr]     Checking backtrace v0.3.76
[INFO] [stderr]     Checking trace-error v0.1.5
[INFO] [stderr]     Checking parallel-event-emitter v0.2.4 (/opt/rustwide/workdir)
[INFO] [stdout] warning: use of deprecated type alias `futures::BoxFuture`: removed without replacement, recommended to use a local extension trait or function if needed, more details in https://github.com/rust-lang-nursery/futures-rs/issues/228
[INFO] [stdout]    --> src/lib.rs:127:14
[INFO] [stdout]     |
[INFO] [stdout] 127 | use futures::BoxFuture;
[INFO] [stdout]     |              ^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated type alias `futures::BoxFuture`: removed without replacement, recommended to use a local extension trait or function if needed, more details in https://github.com/rust-lang-nursery/futures-rs/issues/228
[INFO] [stdout]    --> src/lib.rs:620:53
[INFO] [stdout]     |
[INFO] [stdout] 620 |     pub fn emit<E: Into<K>>(&mut self, event: E) -> BoxFuture<usize, Trace<EventError>> {
[INFO] [stdout]     |                                                     ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated type alias `futures::BoxFuture`: removed without replacement, recommended to use a local extension trait or function if needed, more details in https://github.com/rust-lang-nursery/futures-rs/issues/228
[INFO] [stdout]    --> src/lib.rs:648:72
[INFO] [stdout]     |
[INFO] [stdout] 648 |     pub fn emit_value<T, E: Into<K>>(&mut self, event: E, value: T) -> BoxFuture<usize, Trace<EventError>> where T: Any + Clone + S...
[INFO] [stdout]     |                                                                        ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated type alias `futures::BoxFuture`: removed without replacement, recommended to use a local extension trait or function if needed, more details in https://github.com/rust-lang-nursery/futures-rs/issues/228
[INFO] [stdout]    --> src/lib.rs:676:77
[INFO] [stdout]     |
[INFO] [stdout] 676 |     pub fn emit_value_sync<T, E: Into<K>>(&mut self, event: E, value: T) -> BoxFuture<usize, Trace<EventError>> where T: Any + Send...
[INFO] [stdout]     |                                                                             ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated type alias `futures::BoxFuture`: removed without replacement, recommended to use a local extension trait or function if needed, more details in https://github.com/rust-lang-nursery/futures-rs/issues/228
[INFO] [stdout]    --> src/lib.rs:161:41
[INFO] [stdout]     |
[INFO] [stdout] 161 |     use futures::{self, future, Future, BoxFuture};
[INFO] [stdout]     |                                         ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated type alias `futures::BoxFuture`: removed without replacement, recommended to use a local extension trait or function if needed, more details in https://github.com/rust-lang-nursery/futures-rs/issues/228
[INFO] [stdout]    --> src/lib.rs:284:83
[INFO] [stdout]     |
[INFO] [stdout] 284 |     pub fn emit_spawn<K: EventKey>(inner: Arc<Inner<K>>, event: K) -> EventResult<BoxFuture<usize, Trace<EventError>>> {
[INFO] [stdout]     |                                                                                   ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated type alias `futures::BoxFuture`: removed without replacement, recommended to use a local extension trait or function if needed, more details in https://github.com/rust-lang-nursery/futures-rs/issues/228
[INFO] [stdout]    --> src/lib.rs:311:102
[INFO] [stdout]     |
[INFO] [stdout] 311 |     pub fn emit_value_spawn<T, K: EventKey>(inner: Arc<Inner<K>>, event: K, value: T) -> EventResult<BoxFuture<usize, Trace<EventEr...
[INFO] [stdout]     |                                                                                                      ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated type alias `futures::BoxFuture`: removed without replacement, recommended to use a local extension trait or function if needed, more details in https://github.com/rust-lang-nursery/futures-rs/issues/228
[INFO] [stdout]    --> src/lib.rs:341:107
[INFO] [stdout]     |
[INFO] [stdout] 341 |     pub fn emit_value_sync_spawn<T, K: EventKey>(inner: Arc<Inner<K>>, event: K, value: T) -> EventResult<BoxFuture<usize, Trace<Ev...
[INFO] [stdout]     |                                                                                                           ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/lib.rs:187:19
[INFO] [stdout]     |
[INFO] [stdout] 187 |         Owned(Box<Any + Send>),
[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/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout]     = note: `#[warn(bare_trait_objects)]` (part of `#[warn(rust_2021_compatibility)]`) on by default
[INFO] [stdout] help: if this is a dyn-compatible trait, use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 187 |         Owned(Box<dyn Any + Send>),
[INFO] [stdout]     |                   +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/lib.rs:189:26
[INFO] [stdout]     |
[INFO] [stdout] 189 |         Borrowed(Arc<Box<Any + Send>>),
[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/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: if this is a dyn-compatible trait, use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 189 |         Borrowed(Arc<Box<dyn Any + Send>>),
[INFO] [stdout]     |                          +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/lib.rs:196:33
[INFO] [stdout]     |
[INFO] [stdout] 196 |     pub type SyncCallback = Box<FnMut(ListenerId, Option<ArcCowish>) -> EventResult<bool>>;
[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/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: if this is a dyn-compatible trait, use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 196 |     pub type SyncCallback = Box<dyn FnMut(ListenerId, Option<ArcCowish>) -> EventResult<bool>>;
[INFO] [stdout]     |                                 +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/lib.rs:352:36
[INFO] [stdout]     |
[INFO] [stdout] 352 |                     inner: Arc<Box<Any + Send>>
[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/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: if this is a dyn-compatible trait, use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 352 |                     inner: Arc<Box<dyn Any + Send>>
[INFO] [stdout]     |                                    +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated method `std::error::Error::description`: use the Display impl or to_string()
[INFO] [stdout]   --> src/error.rs:23:30
[INFO] [stdout]    |
[INFO] [stdout] 23 |         write!(f, "{}", self.description())
[INFO] [stdout]    |                              ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated type alias `futures::BoxFuture`: removed without replacement, recommended to use a local extension trait or function if needed, more details in https://github.com/rust-lang-nursery/futures-rs/issues/228
[INFO] [stdout]    --> src/lib.rs:127:14
[INFO] [stdout]     |
[INFO] [stdout] 127 | use futures::BoxFuture;
[INFO] [stdout]     |              ^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated type alias `futures::BoxFuture`: removed without replacement, recommended to use a local extension trait or function if needed, more details in https://github.com/rust-lang-nursery/futures-rs/issues/228
[INFO] [stdout]    --> src/lib.rs:620:53
[INFO] [stdout]     |
[INFO] [stdout] 620 |     pub fn emit<E: Into<K>>(&mut self, event: E) -> BoxFuture<usize, Trace<EventError>> {
[INFO] [stdout]     |                                                     ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated type alias `futures::BoxFuture`: removed without replacement, recommended to use a local extension trait or function if needed, more details in https://github.com/rust-lang-nursery/futures-rs/issues/228
[INFO] [stdout]    --> src/lib.rs:648:72
[INFO] [stdout]     |
[INFO] [stdout] 648 |     pub fn emit_value<T, E: Into<K>>(&mut self, event: E, value: T) -> BoxFuture<usize, Trace<EventError>> where T: Any + Clone + S...
[INFO] [stdout]     |                                                                        ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated type alias `futures::BoxFuture`: removed without replacement, recommended to use a local extension trait or function if needed, more details in https://github.com/rust-lang-nursery/futures-rs/issues/228
[INFO] [stdout]    --> src/lib.rs:676:77
[INFO] [stdout]     |
[INFO] [stdout] 676 |     pub fn emit_value_sync<T, E: Into<K>>(&mut self, event: E, value: T) -> BoxFuture<usize, Trace<EventError>> where T: Any + Send...
[INFO] [stdout]     |                                                                             ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated type alias `futures::BoxFuture`: removed without replacement, recommended to use a local extension trait or function if needed, more details in https://github.com/rust-lang-nursery/futures-rs/issues/228
[INFO] [stdout]    --> src/lib.rs:161:41
[INFO] [stdout]     |
[INFO] [stdout] 161 |     use futures::{self, future, Future, BoxFuture};
[INFO] [stdout]     |                                         ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated type alias `futures::BoxFuture`: removed without replacement, recommended to use a local extension trait or function if needed, more details in https://github.com/rust-lang-nursery/futures-rs/issues/228
[INFO] [stdout]    --> src/lib.rs:284:83
[INFO] [stdout]     |
[INFO] [stdout] 284 |     pub fn emit_spawn<K: EventKey>(inner: Arc<Inner<K>>, event: K) -> EventResult<BoxFuture<usize, Trace<EventError>>> {
[INFO] [stdout]     |                                                                                   ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated method `futures::Future::boxed`: removed without replacement, recommended to use a local extension trait or function if needed, more details in https://github.com/rust-lang-nursery/futures-rs/issues/228
[INFO] [stdout]    --> src/lib.rs:303:77
[INFO] [stdout]     |
[INFO] [stdout] 303 |                 return Ok(future::join_all(listener_futures).map(count_ran).boxed());
[INFO] [stdout]     |                                                                             ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated type alias `futures::BoxFuture`: removed without replacement, recommended to use a local extension trait or function if needed, more details in https://github.com/rust-lang-nursery/futures-rs/issues/228
[INFO] [stdout]    --> src/lib.rs:311:102
[INFO] [stdout]     |
[INFO] [stdout] 311 |     pub fn emit_value_spawn<T, K: EventKey>(inner: Arc<Inner<K>>, event: K, value: T) -> EventResult<BoxFuture<usize, Trace<EventEr...
[INFO] [stdout]     |                                                                                                      ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated type alias `futures::BoxFuture`: removed without replacement, recommended to use a local extension trait or function if needed, more details in https://github.com/rust-lang-nursery/futures-rs/issues/228
[INFO] [stdout]    --> src/lib.rs:341:107
[INFO] [stdout]     |
[INFO] [stdout] 341 |     pub fn emit_value_sync_spawn<T, K: EventKey>(inner: Arc<Inner<K>>, event: K, value: T) -> EventResult<BoxFuture<usize, Trace<Ev...
[INFO] [stdout]     |                                                                                                           ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/lib.rs:187:19
[INFO] [stdout]     |
[INFO] [stdout] 187 |         Owned(Box<Any + Send>),
[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/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout]     = note: `#[warn(bare_trait_objects)]` (part of `#[warn(rust_2021_compatibility)]`) on by default
[INFO] [stdout] help: if this is a dyn-compatible trait, use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 187 |         Owned(Box<dyn Any + Send>),
[INFO] [stdout]     |                   +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/lib.rs:189:26
[INFO] [stdout]     |
[INFO] [stdout] 189 |         Borrowed(Arc<Box<Any + Send>>),
[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/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: if this is a dyn-compatible trait, use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 189 |         Borrowed(Arc<Box<dyn Any + Send>>),
[INFO] [stdout]     |                          +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated method `futures::Future::boxed`: removed without replacement, recommended to use a local extension trait or function if needed, more details in https://github.com/rust-lang-nursery/futures-rs/issues/228
[INFO] [stdout]    --> src/lib.rs:307:33
[INFO] [stdout]     |
[INFO] [stdout] 307 |         Ok(futures::finished(0).boxed())
[INFO] [stdout]     |                                 ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/lib.rs:196:33
[INFO] [stdout]     |
[INFO] [stdout] 196 |     pub type SyncCallback = Box<FnMut(ListenerId, Option<ArcCowish>) -> EventResult<bool>>;
[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/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: if this is a dyn-compatible trait, use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 196 |     pub type SyncCallback = Box<dyn FnMut(ListenerId, Option<ArcCowish>) -> EventResult<bool>>;
[INFO] [stdout]     |                                 +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/lib.rs:352:36
[INFO] [stdout]     |
[INFO] [stdout] 352 |                     inner: Arc<Box<Any + Send>>
[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/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: if this is a dyn-compatible trait, use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 352 |                     inner: Arc<Box<dyn Any + Send>>
[INFO] [stdout]     |                                    +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated method `futures::Future::boxed`: removed without replacement, recommended to use a local extension trait or function if needed, more details in https://github.com/rust-lang-nursery/futures-rs/issues/228
[INFO] [stdout]    --> src/lib.rs:333:77
[INFO] [stdout]     |
[INFO] [stdout] 333 |                 return Ok(future::join_all(listener_futures).map(count_ran).boxed());
[INFO] [stdout]     |                                                                             ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated method `futures::Future::boxed`: removed without replacement, recommended to use a local extension trait or function if needed, more details in https://github.com/rust-lang-nursery/futures-rs/issues/228
[INFO] [stdout]    --> src/lib.rs:337:33
[INFO] [stdout]     |
[INFO] [stdout] 337 |         Ok(futures::finished(0).boxed())
[INFO] [stdout]     |                                 ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated method `futures::Future::boxed`: removed without replacement, recommended to use a local extension trait or function if needed, more details in https://github.com/rust-lang-nursery/futures-rs/issues/228
[INFO] [stdout]    --> src/lib.rs:373:77
[INFO] [stdout]     |
[INFO] [stdout] 373 |                 return Ok(future::join_all(listener_futures).map(count_ran).boxed());
[INFO] [stdout]     |                                                                             ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated method `futures::Future::boxed`: removed without replacement, recommended to use a local extension trait or function if needed, more details in https://github.com/rust-lang-nursery/futures-rs/issues/228
[INFO] [stdout]    --> src/lib.rs:377:33
[INFO] [stdout]     |
[INFO] [stdout] 377 |         Ok(futures::finished(0).boxed())
[INFO] [stdout]     |                                 ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated method `futures::Future::boxed`: removed without replacement, recommended to use a local extension trait or function if needed, more details in https://github.com/rust-lang-nursery/futures-rs/issues/228
[INFO] [stdout]    --> src/lib.rs:624:88
[INFO] [stdout]     |
[INFO] [stdout] 624 |         self.inner.pool.spawn_fn(move || internal::emit_spawn(inner, event)).flatten().boxed()
[INFO] [stdout]     |                                                                                        ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated method `futures::Future::boxed`: removed without replacement, recommended to use a local extension trait or function if needed, more details in https://github.com/rust-lang-nursery/futures-rs/issues/228
[INFO] [stdout]    --> src/lib.rs:652:101
[INFO] [stdout]     |
[INFO] [stdout] 652 |         self.inner.pool.spawn_fn(move || internal::emit_value_spawn(inner, event, value)).flatten().boxed()
[INFO] [stdout]     |                                                                                                     ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated method `std::error::Error::description`: use the Display impl or to_string()
[INFO] [stdout]   --> src/error.rs:23:30
[INFO] [stdout]    |
[INFO] [stdout] 23 |         write!(f, "{}", self.description())
[INFO] [stdout]    |                              ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated method `futures::Future::boxed`: removed without replacement, recommended to use a local extension trait or function if needed, more details in https://github.com/rust-lang-nursery/futures-rs/issues/228
[INFO] [stdout]    --> src/lib.rs:680:106
[INFO] [stdout]     |
[INFO] [stdout] 680 |         self.inner.pool.spawn_fn(move || internal::emit_value_sync_spawn(inner, event, value)).flatten().boxed()
[INFO] [stdout]     |                                                                                                          ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated method `futures::Future::boxed`: removed without replacement, recommended to use a local extension trait or function if needed, more details in https://github.com/rust-lang-nursery/futures-rs/issues/228
[INFO] [stdout]    --> src/lib.rs:303:77
[INFO] [stdout]     |
[INFO] [stdout] 303 |                 return Ok(future::join_all(listener_futures).map(count_ran).boxed());
[INFO] [stdout]     |                                                                             ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated method `futures::Future::boxed`: removed without replacement, recommended to use a local extension trait or function if needed, more details in https://github.com/rust-lang-nursery/futures-rs/issues/228
[INFO] [stdout]    --> src/lib.rs:307:33
[INFO] [stdout]     |
[INFO] [stdout] 307 |         Ok(futures::finished(0).boxed())
[INFO] [stdout]     |                                 ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated method `futures::Future::boxed`: removed without replacement, recommended to use a local extension trait or function if needed, more details in https://github.com/rust-lang-nursery/futures-rs/issues/228
[INFO] [stdout]    --> src/lib.rs:333:77
[INFO] [stdout]     |
[INFO] [stdout] 333 |                 return Ok(future::join_all(listener_futures).map(count_ran).boxed());
[INFO] [stdout]     |                                                                             ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated method `futures::Future::boxed`: removed without replacement, recommended to use a local extension trait or function if needed, more details in https://github.com/rust-lang-nursery/futures-rs/issues/228
[INFO] [stdout]    --> src/lib.rs:337:33
[INFO] [stdout]     |
[INFO] [stdout] 337 |         Ok(futures::finished(0).boxed())
[INFO] [stdout]     |                                 ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated method `futures::Future::boxed`: removed without replacement, recommended to use a local extension trait or function if needed, more details in https://github.com/rust-lang-nursery/futures-rs/issues/228
[INFO] [stdout]    --> src/lib.rs:373:77
[INFO] [stdout]     |
[INFO] [stdout] 373 |                 return Ok(future::join_all(listener_futures).map(count_ran).boxed());
[INFO] [stdout]     |                                                                             ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated method `futures::Future::boxed`: removed without replacement, recommended to use a local extension trait or function if needed, more details in https://github.com/rust-lang-nursery/futures-rs/issues/228
[INFO] [stdout]    --> src/lib.rs:377:33
[INFO] [stdout]     |
[INFO] [stdout] 377 |         Ok(futures::finished(0).boxed())
[INFO] [stdout]     |                                 ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated method `futures::Future::boxed`: removed without replacement, recommended to use a local extension trait or function if needed, more details in https://github.com/rust-lang-nursery/futures-rs/issues/228
[INFO] [stdout]    --> src/lib.rs:624:88
[INFO] [stdout]     |
[INFO] [stdout] 624 |         self.inner.pool.spawn_fn(move || internal::emit_spawn(inner, event)).flatten().boxed()
[INFO] [stdout]     |                                                                                        ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated method `futures::Future::boxed`: removed without replacement, recommended to use a local extension trait or function if needed, more details in https://github.com/rust-lang-nursery/futures-rs/issues/228
[INFO] [stdout]    --> src/lib.rs:652:101
[INFO] [stdout]     |
[INFO] [stdout] 652 |         self.inner.pool.spawn_fn(move || internal::emit_value_spawn(inner, event, value)).flatten().boxed()
[INFO] [stdout]     |                                                                                                     ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated method `futures::Future::boxed`: removed without replacement, recommended to use a local extension trait or function if needed, more details in https://github.com/rust-lang-nursery/futures-rs/issues/228
[INFO] [stdout]    --> src/lib.rs:680:106
[INFO] [stdout]     |
[INFO] [stdout] 680 |         self.inner.pool.spawn_fn(move || internal::emit_value_sync_spawn(inner, event, value)).flatten().boxed()
[INFO] [stdout]     |                                                                                                          ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `#[macro_use]` import
[INFO] [stdout]  --> examples/custom_events.rs:1:1
[INFO] [stdout]   |
[INFO] [stdout] 1 | #[macro_use]
[INFO] [stdout]   | ^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `#[macro_use]` import
[INFO] [stdout]  --> examples/simple.rs:1:1
[INFO] [stdout]   |
[INFO] [stdout] 1 | #[macro_use]
[INFO] [stdout]   | ^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 6.14s
[INFO] running `Command { std: "docker" "inspect" "592d16763cdfa5bde2108ce5f75374e2e51ce6ee71c9732c50117b164834f2e8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "592d16763cdfa5bde2108ce5f75374e2e51ce6ee71c9732c50117b164834f2e8", kill_on_drop: false }`
[INFO] [stdout] 592d16763cdfa5bde2108ce5f75374e2e51ce6ee71c9732c50117b164834f2e8
