[INFO] crate tokyo 1.0.0 is already in cache
[INFO] extracting crate tokyo 1.0.0 into work/ex/pr-62849/sources/master#435236b8877cdb98c82eaebfb7887782277265c5/reg/tokyo/1.0.0
[INFO] extracting crate tokyo 1.0.0 into work/ex/pr-62849/sources/try#b5c7f157c20453dde8d47371abe73b32351b4e7f/reg/tokyo/1.0.0
[INFO] validating manifest of tokyo-1.0.0 on toolchain master#435236b8877cdb98c82eaebfb7887782277265c5
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+435236b8877cdb98c82eaebfb7887782277265c5-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of tokyo-1.0.0 on toolchain try#b5c7f157c20453dde8d47371abe73b32351b4e7f
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+b5c7f157c20453dde8d47371abe73b32351b4e7f-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing tokyo-1.0.0
[INFO] finished frobbing tokyo-1.0.0
[INFO] frobbed toml for tokyo-1.0.0 written to work/ex/pr-62849/sources/master#435236b8877cdb98c82eaebfb7887782277265c5/reg/tokyo/1.0.0/Cargo.toml
[INFO] started frobbing tokyo-1.0.0
[INFO] finished frobbing tokyo-1.0.0
[INFO] frobbed toml for tokyo-1.0.0 written to work/ex/pr-62849/sources/try#b5c7f157c20453dde8d47371abe73b32351b4e7f/reg/tokyo/1.0.0/Cargo.toml
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+435236b8877cdb98c82eaebfb7887782277265c5-alt" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+b5c7f157c20453dde8d47371abe73b32351b4e7f-alt" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+435236b8877cdb98c82eaebfb7887782277265c5-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+b5c7f157c20453dde8d47371abe73b32351b4e7f-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] checking tokyo-1.0.0 against try#b5c7f157c20453dde8d47371abe73b32351b4e7f for pr-62849
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-62849/worker-7/try#b5c7f157c20453dde8d47371abe73b32351b4e7f:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-62849/sources/try#b5c7f157c20453dde8d47371abe73b32351b4e7f/reg/tokyo/1.0.0:/opt/crater/workdir:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/big/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" "+b5c7f157c20453dde8d47371abe73b32351b4e7f-alt" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] 4281ea956e32611128830c2d0d51b446018018a5b0648e855a8cc04cf86e5ead
[INFO] running `"docker" "start" "-a" "4281ea956e32611128830c2d0d51b446018018a5b0648e855a8cc04cf86e5ead"`
[INFO] [stderr]     Checking input_buffer v0.2.0
[INFO] [stderr]     Checking euclid v0.19.9
[INFO] [stderr]     Checking tokio-tls v0.2.1
[INFO] [stderr]     Checking trust-dns-proto v0.6.3
[INFO] [stderr]     Checking trust-dns-proto v0.5.0
[INFO] [stderr]     Checking tokio-dns-unofficial v0.3.1
[INFO] [stderr]     Checking tungstenite v0.6.1
[INFO] [stderr]     Checking tokio-tungstenite v0.6.0
[INFO] [stderr]     Checking trust-dns-resolver v0.10.3
[INFO] [stderr]     Checking actix v0.7.9
[INFO] [stderr]     Checking tokyo v1.0.0 (/opt/crater/workdir)
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/behavior.rs:92:32
[INFO] [stderr]    |
[INFO] [stderr] 92 |     fn box_clone(&self) -> Box<Behavior>;
[INFO] [stderr]    |                                ^^^^^^^^ help: use `dyn`: `dyn Behavior`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/behavior.rs:95:20
[INFO] [stderr]    |
[INFO] [stderr] 95 | impl Clone for Box<Behavior> {
[INFO] [stderr]    |                    ^^^^^^^^ help: use `dyn`: `dyn Behavior`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/behavior.rs:101:22
[INFO] [stderr]     |
[INFO] [stderr] 101 | impl Default for Box<Behavior> {
[INFO] [stderr]     |                      ^^^^^^^^ help: use `dyn`: `dyn Behavior`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/behavior.rs:112:25
[INFO] [stderr]     |
[INFO] [stderr] 112 |     inner: VecDeque<Box<Behavior>>,
[INFO] [stderr]     |                         ^^^^^^^^ help: use `dyn`: `dyn Behavior`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/behavior.rs:126:32
[INFO] [stderr]     |
[INFO] [stderr] 126 |     fn box_clone(&self) -> Box<Behavior> {
[INFO] [stderr]     |                                ^^^^^^^^ help: use `dyn`: `dyn Behavior`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/behavior.rs:136:37
[INFO] [stderr]     |
[INFO] [stderr] 136 |     pub fn with_slice(behaviors: &[&Behavior]) -> Self {
[INFO] [stderr]     |                                     ^^^^^^^^ help: use `dyn`: `dyn Behavior`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/behavior.rs:150:32
[INFO] [stderr]     |
[INFO] [stderr] 150 |     fn box_clone(&self) -> Box<Behavior> {
[INFO] [stderr]     |                                ^^^^^^^^ help: use `dyn`: `dyn Behavior`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/behavior.rs:165:32
[INFO] [stderr]     |
[INFO] [stderr] 165 |     fn box_clone(&self) -> Box<Behavior> {
[INFO] [stderr]     |                                ^^^^^^^^ help: use `dyn`: `dyn Behavior`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/behavior.rs:186:32
[INFO] [stderr]     |
[INFO] [stderr] 186 |     fn box_clone(&self) -> Box<Behavior> {
[INFO] [stderr]     |                                ^^^^^^^^ help: use `dyn`: `dyn Behavior`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/behavior.rs:231:32
[INFO] [stderr]     |
[INFO] [stderr] 231 |     fn box_clone(&self) -> Box<Behavior> {
[INFO] [stderr]     |                                ^^^^^^^^ help: use `dyn`: `dyn Behavior`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/behavior.rs:253:32
[INFO] [stderr]     |
[INFO] [stderr] 253 |     fn box_clone(&self) -> Box<Behavior> {
[INFO] [stderr]     |                                ^^^^^^^^ help: use `dyn`: `dyn Behavior`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/behavior.rs:284:32
[INFO] [stderr]     |
[INFO] [stderr] 284 |     fn box_clone(&self) -> Box<Behavior> {
[INFO] [stderr]     |                                ^^^^^^^^ help: use `dyn`: `dyn Behavior`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/behavior.rs:329:32
[INFO] [stderr]     |
[INFO] [stderr] 329 |     fn box_clone(&self) -> Box<Behavior> {
[INFO] [stderr]     |                                ^^^^^^^^ help: use `dyn`: `dyn Behavior`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/behavior.rs:362:32
[INFO] [stderr]     |
[INFO] [stderr] 362 |     fn box_clone(&self) -> Box<Behavior> {
[INFO] [stderr]     |                                ^^^^^^^^ help: use `dyn`: `dyn Behavior`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/behavior.rs:393:32
[INFO] [stderr]     |
[INFO] [stderr] 393 |     fn box_clone(&self) -> Box<Behavior> {
[INFO] [stderr]     |                                ^^^^^^^^ help: use `dyn`: `dyn Behavior`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/behavior.rs:414:32
[INFO] [stderr]     |
[INFO] [stderr] 414 |     fn box_clone(&self) -> Box<Behavior> {
[INFO] [stderr]     |                                ^^^^^^^^ help: use `dyn`: `dyn Behavior`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/geom.rs:44:32
[INFO] [stderr]    |
[INFO] [stderr] 44 |     fn distance(&self, other: &PointExt) -> f32 {
[INFO] [stderr]    |                                ^^^^^^^^ help: use `dyn`: `dyn PointExt`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/geom.rs:49:32
[INFO] [stderr]    |
[INFO] [stderr] 49 |     fn angle_to(&self, other: &PointExt) -> Radian {
[INFO] [stderr]    |                                ^^^^^^^^ help: use `dyn`: `dyn PointExt`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/geom.rs:55:35
[INFO] [stderr]    |
[INFO] [stderr] 55 |     fn velocity_to(&self, other: &PointExt, dt: Duration) -> Vector {
[INFO] [stderr]    |                                   ^^^^^^^^ help: use `dyn`: `dyn PointExt`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/behavior.rs:92:32
[INFO] [stderr]    |
[INFO] [stderr] 92 |     fn box_clone(&self) -> Box<Behavior>;
[INFO] [stderr]    |                                ^^^^^^^^ help: use `dyn`: `dyn Behavior`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/behavior.rs:95:20
[INFO] [stderr]    |
[INFO] [stderr] 95 | impl Clone for Box<Behavior> {
[INFO] [stderr]    |                    ^^^^^^^^ help: use `dyn`: `dyn Behavior`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/behavior.rs:101:22
[INFO] [stderr]     |
[INFO] [stderr] 101 | impl Default for Box<Behavior> {
[INFO] [stderr]     |                      ^^^^^^^^ help: use `dyn`: `dyn Behavior`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/behavior.rs:112:25
[INFO] [stderr]     |
[INFO] [stderr] 112 |     inner: VecDeque<Box<Behavior>>,
[INFO] [stderr]     |                         ^^^^^^^^ help: use `dyn`: `dyn Behavior`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/behavior.rs:126:32
[INFO] [stderr]     |
[INFO] [stderr] 126 |     fn box_clone(&self) -> Box<Behavior> {
[INFO] [stderr]     |                                ^^^^^^^^ help: use `dyn`: `dyn Behavior`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/behavior.rs:136:37
[INFO] [stderr]     |
[INFO] [stderr] 136 |     pub fn with_slice(behaviors: &[&Behavior]) -> Self {
[INFO] [stderr]     |                                     ^^^^^^^^ help: use `dyn`: `dyn Behavior`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/behavior.rs:150:32
[INFO] [stderr]     |
[INFO] [stderr] 150 |     fn box_clone(&self) -> Box<Behavior> {
[INFO] [stderr]     |                                ^^^^^^^^ help: use `dyn`: `dyn Behavior`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/behavior.rs:165:32
[INFO] [stderr]     |
[INFO] [stderr] 165 |     fn box_clone(&self) -> Box<Behavior> {
[INFO] [stderr]     |                                ^^^^^^^^ help: use `dyn`: `dyn Behavior`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/behavior.rs:186:32
[INFO] [stderr]     |
[INFO] [stderr] 186 |     fn box_clone(&self) -> Box<Behavior> {
[INFO] [stderr]     |                                ^^^^^^^^ help: use `dyn`: `dyn Behavior`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/behavior.rs:231:32
[INFO] [stderr]     |
[INFO] [stderr] 231 |     fn box_clone(&self) -> Box<Behavior> {
[INFO] [stderr]     |                                ^^^^^^^^ help: use `dyn`: `dyn Behavior`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/behavior.rs:253:32
[INFO] [stderr]     |
[INFO] [stderr] 253 |     fn box_clone(&self) -> Box<Behavior> {
[INFO] [stderr]     |                                ^^^^^^^^ help: use `dyn`: `dyn Behavior`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/behavior.rs:284:32
[INFO] [stderr]     |
[INFO] [stderr] 284 |     fn box_clone(&self) -> Box<Behavior> {
[INFO] [stderr]     |                                ^^^^^^^^ help: use `dyn`: `dyn Behavior`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/behavior.rs:329:32
[INFO] [stderr]     |
[INFO] [stderr] 329 |     fn box_clone(&self) -> Box<Behavior> {
[INFO] [stderr]     |                                ^^^^^^^^ help: use `dyn`: `dyn Behavior`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/behavior.rs:362:32
[INFO] [stderr]     |
[INFO] [stderr] 362 |     fn box_clone(&self) -> Box<Behavior> {
[INFO] [stderr]     |                                ^^^^^^^^ help: use `dyn`: `dyn Behavior`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/behavior.rs:393:32
[INFO] [stderr]     |
[INFO] [stderr] 393 |     fn box_clone(&self) -> Box<Behavior> {
[INFO] [stderr]     |                                ^^^^^^^^ help: use `dyn`: `dyn Behavior`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/behavior.rs:414:32
[INFO] [stderr]     |
[INFO] [stderr] 414 |     fn box_clone(&self) -> Box<Behavior> {
[INFO] [stderr]     |                                ^^^^^^^^ help: use `dyn`: `dyn Behavior`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/geom.rs:44:32
[INFO] [stderr]    |
[INFO] [stderr] 44 |     fn distance(&self, other: &PointExt) -> f32 {
[INFO] [stderr]    |                                ^^^^^^^^ help: use `dyn`: `dyn PointExt`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/geom.rs:49:32
[INFO] [stderr]    |
[INFO] [stderr] 49 |     fn angle_to(&self, other: &PointExt) -> Radian {
[INFO] [stderr]    |                                ^^^^^^^^ help: use `dyn`: `dyn PointExt`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/geom.rs:55:35
[INFO] [stderr]    |
[INFO] [stderr] 55 |     fn velocity_to(&self, other: &PointExt, dt: Duration) -> Vector {
[INFO] [stderr]    |                                   ^^^^^^^^ help: use `dyn`: `dyn PointExt`
[INFO] [stderr] 
[INFO] [stderr] warning: a method with this name may be added to the standard library in the future
[INFO] [stderr]   --> src/geom.rs:56:47
[INFO] [stderr]    |
[INFO] [stderr] 56 |         (*other.point() - *self.point()) / dt.as_secs_f32()
[INFO] [stderr]    |                                               ^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unstable_name_collisions)]` on by default
[INFO] [stderr]    = warning: once this method is added to the standard library, the ambiguity may cause an error or change in behavior!
[INFO] [stderr]    = note: for more information, see issue #48919 <https://github.com/rust-lang/rust/issues/48919>
[INFO] [stderr]    = help: call with fully qualified syntax `geom::AsSecsF32::as_secs_f32(...)` to keep using the current method
[INFO] [stderr]    = help: add `#![feature(duration_float)]` to the crate attributes to enable `std::time::Duration::as_secs_f32`
[INFO] [stderr] 
[INFO] [stderr] warning: a method with this name may be added to the standard library in the future
[INFO] [stderr]   --> src/geom.rs:62:40
[INFO] [stderr]    |
[INFO] [stderr] 62 |         *self.point() + *velocity * dt.as_secs_f32()
[INFO] [stderr]    |                                        ^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = warning: once this method is added to the standard library, the ambiguity may cause an error or change in behavior!
[INFO] [stderr]    = note: for more information, see issue #48919 <https://github.com/rust-lang/rust/issues/48919>
[INFO] [stderr]    = help: call with fully qualified syntax `geom::AsSecsF32::as_secs_f32(...)` to keep using the current method
[INFO] [stderr]    = help: add `#![feature(duration_float)]` to the crate attributes to enable `std::time::Duration::as_secs_f32`
[INFO] [stderr] 
[INFO] [stderr] warning: a method with this name may be added to the standard library in the future
[INFO] [stderr]   --> src/geom.rs:56:47
[INFO] [stderr]    |
[INFO] [stderr] 56 |         (*other.point() - *self.point()) / dt.as_secs_f32()
[INFO] [stderr]    |                                               ^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unstable_name_collisions)]` on by default
[INFO] [stderr]    = warning: once this method is added to the standard library, the ambiguity may cause an error or change in behavior!
[INFO] [stderr]    = note: for more information, see issue #48919 <https://github.com/rust-lang/rust/issues/48919>
[INFO] [stderr]    = help: call with fully qualified syntax `geom::AsSecsF32::as_secs_f32(...)` to keep using the current method
[INFO] [stderr]    = help: add `#![feature(duration_float)]` to the crate attributes to enable `std::time::Duration::as_secs_f32`
[INFO] [stderr] 
[INFO] [stderr] warning: a method with this name may be added to the standard library in the future
[INFO] [stderr]   --> src/geom.rs:62:40
[INFO] [stderr]    |
[INFO] [stderr] 62 |         *self.point() + *velocity * dt.as_secs_f32()
[INFO] [stderr]    |                                        ^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = warning: once this method is added to the standard library, the ambiguity may cause an error or change in behavior!
[INFO] [stderr]    = note: for more information, see issue #48919 <https://github.com/rust-lang/rust/issues/48919>
[INFO] [stderr]    = help: call with fully qualified syntax `geom::AsSecsF32::as_secs_f32(...)` to keep using the current method
[INFO] [stderr]    = help: add `#![feature(duration_float)]` to the crate attributes to enable `std::time::Duration::as_secs_f32`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> examples/chaser.rs:21:27
[INFO] [stderr]    |
[INFO] [stderr] 21 |     current_behavior: Box<Behavior>,
[INFO] [stderr]    |                           ^^^^^^^^ help: use `dyn`: `dyn Behavior`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> examples/chaser.rs:24:19
[INFO] [stderr]    |
[INFO] [stderr] 24 | fn chase() -> Box<Behavior> {
[INFO] [stderr]    |                   ^^^^^^^^ help: use `dyn`: `dyn Behavior`
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 25.23s
[INFO] running `"docker" "inspect" "4281ea956e32611128830c2d0d51b446018018a5b0648e855a8cc04cf86e5ead"`
[INFO] running `"docker" "rm" "-f" "4281ea956e32611128830c2d0d51b446018018a5b0648e855a8cc04cf86e5ead"`
[INFO] [stdout] 4281ea956e32611128830c2d0d51b446018018a5b0648e855a8cc04cf86e5ead