[INFO] crate parallel-event-emitter 0.2.4 is already in cache
[INFO] extracting crate parallel-event-emitter 0.2.4 into work/ex/pr-60162/sources/master#a850a426491e14186af2250549bf41256b5938d2/reg/parallel-event-emitter/0.2.4
[INFO] extracting crate parallel-event-emitter 0.2.4 into work/ex/pr-60162/sources/try#06a150c7d11500b41499224f165e9de1de096768/reg/parallel-event-emitter/0.2.4
[INFO] validating manifest of parallel-event-emitter-0.2.4 on toolchain master#a850a426491e14186af2250549bf41256b5938d2
[INFO] running `"/mnt/crater-raid/crater/work/local/cargo-home/bin/cargo" "+a850a426491e14186af2250549bf41256b5938d2-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of parallel-event-emitter-0.2.4 on toolchain try#06a150c7d11500b41499224f165e9de1de096768
[INFO] running `"/mnt/crater-raid/crater/work/local/cargo-home/bin/cargo" "+06a150c7d11500b41499224f165e9de1de096768-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing parallel-event-emitter-0.2.4
[INFO] finished frobbing parallel-event-emitter-0.2.4
[INFO] frobbed toml for parallel-event-emitter-0.2.4 written to work/ex/pr-60162/sources/master#a850a426491e14186af2250549bf41256b5938d2/reg/parallel-event-emitter/0.2.4/Cargo.toml
[INFO] started frobbing parallel-event-emitter-0.2.4
[INFO] finished frobbing parallel-event-emitter-0.2.4
[INFO] frobbed toml for parallel-event-emitter-0.2.4 written to work/ex/pr-60162/sources/try#06a150c7d11500b41499224f165e9de1de096768/reg/parallel-event-emitter/0.2.4/Cargo.toml
[INFO] running `"/mnt/crater-raid/crater/work/local/cargo-home/bin/cargo" "+a850a426491e14186af2250549bf41256b5938d2-alt" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/crater-raid/crater/work/local/cargo-home/bin/cargo" "+06a150c7d11500b41499224f165e9de1de096768-alt" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/crater-raid/crater/work/local/cargo-home/bin/cargo" "+a850a426491e14186af2250549bf41256b5938d2-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/crater-raid/crater/work/local/cargo-home/bin/cargo" "+06a150c7d11500b41499224f165e9de1de096768-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] checking parallel-event-emitter-0.2.4 against master#a850a426491e14186af2250549bf41256b5938d2 for pr-60162
[INFO] running `"docker" "create" "-v" "/mnt/crater-raid/crater/work/local/target-dirs/pr-60162/worker-3/master#a850a426491e14186af2250549bf41256b5938d2:/opt/crater/target:rw,Z" "-v" "/mnt/crater-raid/crater/work/ex/pr-60162/sources/master#a850a426491e14186af2250549bf41256b5938d2/reg/parallel-event-emitter/0.2.4:/opt/crater/workdir:ro,Z" "-v" "/mnt/crater-raid/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/crater-raid/crater/work/local/rustup-home:/opt/crater/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/opt/crater/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/crater/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/crater/cargo-home" "-e" "RUSTUP_HOME=/opt/crater/rustup-home" "-w" "/opt/crater/workdir" "-m" "1536M" "--network" "none" "rustops/crates-build-env" "/opt/crater/cargo-home/bin/cargo" "+a850a426491e14186af2250549bf41256b5938d2-alt" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] 6465a925d03f866c4513c34649f20c89df922962448913159c1b8d9ab1f6bc71
[INFO] running `"docker" "start" "-a" "6465a925d03f866c4513c34649f20c89df922962448913159c1b8d9ab1f6bc71"`
[INFO] [stderr]     Checking trace-error v0.1.5
[INFO] [stderr]     Checking parallel-event-emitter v0.2.4 (/opt/crater/workdir)
[INFO] [stderr] warning: use of deprecated item '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] [stderr]    --> src/lib.rs:127:5
[INFO] [stderr]     |
[INFO] [stderr] 127 | use futures::BoxFuture;
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(deprecated)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item '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] [stderr]    --> src/lib.rs:620:53
[INFO] [stderr]     |
[INFO] [stderr] 620 |     pub fn emit<E: Into<K>>(&mut self, event: E) -> BoxFuture<usize, Trace<EventError>> {
[INFO] [stderr]     |                                                     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item '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] [stderr]    --> src/lib.rs:648:72
[INFO] [stderr]     |
[INFO] [stderr] 648 |     pub fn emit_value<T, E: Into<K>>(&mut self, event: E, value: T) -> BoxFuture<usize, Trace<EventError>> where T: Any + Clone + Send {
[INFO] [stderr]     |                                                                        ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item '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] [stderr]    --> src/lib.rs:676:77
[INFO] [stderr]     |
[INFO] [stderr] 676 |     pub fn emit_value_sync<T, E: Into<K>>(&mut self, event: E, value: T) -> BoxFuture<usize, Trace<EventError>> where T: Any + Send + Sync {
[INFO] [stderr]     |                                                                             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item '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] [stderr]    --> src/lib.rs:161:41
[INFO] [stderr]     |
[INFO] [stderr] 161 |     use futures::{self, future, Future, BoxFuture};
[INFO] [stderr]     |                                         ^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item '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] [stderr]    --> src/lib.rs:284:83
[INFO] [stderr]     |
[INFO] [stderr] 284 |     pub fn emit_spawn<K: EventKey>(inner: Arc<Inner<K>>, event: K) -> EventResult<BoxFuture<usize, Trace<EventError>>> {
[INFO] [stderr]     |                                                                                   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item '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] [stderr]    --> src/lib.rs:311:102
[INFO] [stderr]     |
[INFO] [stderr] 311 |     pub fn emit_value_spawn<T, K: EventKey>(inner: Arc<Inner<K>>, event: K, value: T) -> EventResult<BoxFuture<usize, Trace<EventError>>> where T: Any + Clone + Send {
[INFO] [stderr]     |                                                                                                      ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item '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] [stderr]    --> src/lib.rs:341:107
[INFO] [stderr]     |
[INFO] [stderr] 341 |     pub fn emit_value_sync_spawn<T, K: EventKey>(inner: Arc<Inner<K>>, event: K, value: T) -> EventResult<BoxFuture<usize, Trace<EventError>>> where T: Any + Send + Sync {
[INFO] [stderr]     |                                                                                                           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item '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] [stderr]    --> src/lib.rs:303:77
[INFO] [stderr]     |
[INFO] [stderr] 303 |                 return Ok(future::join_all(listener_futures).map(count_ran).boxed());
[INFO] [stderr]     |                                                                             ^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item '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] [stderr]    --> src/lib.rs:307:33
[INFO] [stderr]     |
[INFO] [stderr] 307 |         Ok(futures::finished(0).boxed())
[INFO] [stderr]     |                                 ^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item '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] [stderr]    --> src/lib.rs:333:77
[INFO] [stderr]     |
[INFO] [stderr] 333 |                 return Ok(future::join_all(listener_futures).map(count_ran).boxed());
[INFO] [stderr]     |                                                                             ^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item '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] [stderr]    --> src/lib.rs:337:33
[INFO] [stderr]     |
[INFO] [stderr] 337 |         Ok(futures::finished(0).boxed())
[INFO] [stderr]     |                                 ^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item '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] [stderr]    --> src/lib.rs:373:77
[INFO] [stderr]     |
[INFO] [stderr] 373 |                 return Ok(future::join_all(listener_futures).map(count_ran).boxed());
[INFO] [stderr]     |                                                                             ^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item '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] [stderr]    --> src/lib.rs:377:33
[INFO] [stderr]     |
[INFO] [stderr] 377 |         Ok(futures::finished(0).boxed())
[INFO] [stderr]     |                                 ^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item '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] [stderr]    --> src/lib.rs:624:88
[INFO] [stderr]     |
[INFO] [stderr] 624 |         self.inner.pool.spawn_fn(move || internal::emit_spawn(inner, event)).flatten().boxed()
[INFO] [stderr]     |                                                                                        ^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item '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] [stderr]    --> src/lib.rs:652:101
[INFO] [stderr]     |
[INFO] [stderr] 652 |         self.inner.pool.spawn_fn(move || internal::emit_value_spawn(inner, event, value)).flatten().boxed()
[INFO] [stderr]     |                                                                                                     ^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item '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] [stderr]    --> src/lib.rs:127:5
[INFO] [stderr]     |
[INFO] [stderr] 127 | use futures::BoxFuture;
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(deprecated)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item '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] [stderr]    --> src/lib.rs:620:53
[INFO] [stderr]     |
[INFO] [stderr] 620 |     pub fn emit<E: Into<K>>(&mut self, event: E) -> BoxFuture<usize, Trace<EventError>> {
[INFO] [stderr]     |                                                     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item '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] [stderr]    --> src/lib.rs:648:72
[INFO] [stderr]     |
[INFO] [stderr] 648 |     pub fn emit_value<T, E: Into<K>>(&mut self, event: E, value: T) -> BoxFuture<usize, Trace<EventError>> where T: Any + Clone + Send {
[INFO] [stderr]     |                                                                        ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item '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] [stderr]    --> src/lib.rs:676:77
[INFO] [stderr]     |
[INFO] [stderr] 676 |     pub fn emit_value_sync<T, E: Into<K>>(&mut self, event: E, value: T) -> BoxFuture<usize, Trace<EventError>> where T: Any + Send + Sync {
[INFO] [stderr]     |                                                                             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item '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] [stderr]    --> src/lib.rs:161:41
[INFO] [stderr]     |
[INFO] [stderr] 161 |     use futures::{self, future, Future, BoxFuture};
[INFO] [stderr]     |                                         ^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item '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] [stderr]    --> src/lib.rs:284:83
[INFO] [stderr]     |
[INFO] [stderr] 284 |     pub fn emit_spawn<K: EventKey>(inner: Arc<Inner<K>>, event: K) -> EventResult<BoxFuture<usize, Trace<EventError>>> {
[INFO] [stderr]     |                                                                                   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item '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] [stderr]    --> src/lib.rs:311:102
[INFO] [stderr]     |
[INFO] [stderr] 311 |     pub fn emit_value_spawn<T, K: EventKey>(inner: Arc<Inner<K>>, event: K, value: T) -> EventResult<BoxFuture<usize, Trace<EventError>>> where T: Any + Clone + Send {
[INFO] [stderr]     |                                                                                                      ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item '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] [stderr]    --> src/lib.rs:341:107
[INFO] [stderr]     |
[INFO] [stderr] 341 |     pub fn emit_value_sync_spawn<T, K: EventKey>(inner: Arc<Inner<K>>, event: K, value: T) -> EventResult<BoxFuture<usize, Trace<EventError>>> where T: Any + Send + Sync {
[INFO] [stderr]     |                                                                                                           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item '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] [stderr]    --> src/lib.rs:680:106
[INFO] [stderr]     |
[INFO] [stderr] 680 |         self.inner.pool.spawn_fn(move || internal::emit_value_sync_spawn(inner, event, value)).flatten().boxed()
[INFO] [stderr]     |                                                                                                          ^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item '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] [stderr]    --> src/lib.rs:303:77
[INFO] [stderr]     |
[INFO] [stderr] 303 |                 return Ok(future::join_all(listener_futures).map(count_ran).boxed());
[INFO] [stderr]     |                                                                             ^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item '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] [stderr]    --> src/lib.rs:307:33
[INFO] [stderr]     |
[INFO] [stderr] 307 |         Ok(futures::finished(0).boxed())
[INFO] [stderr]     |                                 ^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item '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] [stderr]    --> src/lib.rs:333:77
[INFO] [stderr]     |
[INFO] [stderr] 333 |                 return Ok(future::join_all(listener_futures).map(count_ran).boxed());
[INFO] [stderr]     |                                                                             ^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item '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] [stderr]    --> src/lib.rs:337:33
[INFO] [stderr]     |
[INFO] [stderr] 337 |         Ok(futures::finished(0).boxed())
[INFO] [stderr]     |                                 ^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item '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] [stderr]    --> src/lib.rs:373:77
[INFO] [stderr]     |
[INFO] [stderr] 373 |                 return Ok(future::join_all(listener_futures).map(count_ran).boxed());
[INFO] [stderr]     |                                                                             ^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item '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] [stderr]    --> src/lib.rs:377:33
[INFO] [stderr]     |
[INFO] [stderr] 377 |         Ok(futures::finished(0).boxed())
[INFO] [stderr]     |                                 ^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item '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] [stderr]    --> src/lib.rs:624:88
[INFO] [stderr]     |
[INFO] [stderr] 624 |         self.inner.pool.spawn_fn(move || internal::emit_spawn(inner, event)).flatten().boxed()
[INFO] [stderr]     |                                                                                        ^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item '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] [stderr]    --> src/lib.rs:652:101
[INFO] [stderr]     |
[INFO] [stderr] 652 |         self.inner.pool.spawn_fn(move || internal::emit_value_spawn(inner, event, value)).flatten().boxed()
[INFO] [stderr]     |                                                                                                     ^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item '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] [stderr]    --> src/lib.rs:680:106
[INFO] [stderr]     |
[INFO] [stderr] 680 |         self.inner.pool.spawn_fn(move || internal::emit_value_sync_spawn(inner, event, value)).flatten().boxed()
[INFO] [stderr]     |                                                                                                          ^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused `#[macro_use]` import
[INFO] [stderr]  --> examples/custom_events.rs:1:1
[INFO] [stderr]   |
[INFO] [stderr] 1 | #[macro_use]
[INFO] [stderr]   | ^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(unused_imports)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused `#[macro_use]` import
[INFO] [stderr]  --> examples/simple.rs:1:1
[INFO] [stderr]   |
[INFO] [stderr] 1 | #[macro_use]
[INFO] [stderr]   | ^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(unused_imports)] on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2.15s
[INFO] running `"docker" "inspect" "6465a925d03f866c4513c34649f20c89df922962448913159c1b8d9ab1f6bc71"`
[INFO] running `"docker" "rm" "-f" "6465a925d03f866c4513c34649f20c89df922962448913159c1b8d9ab1f6bc71"`
[INFO] [stdout] 6465a925d03f866c4513c34649f20c89df922962448913159c1b8d9ab1f6bc71