[INFO] fetching crate downcast 0.10.0...
[INFO] testing downcast-0.10.0 against try#eafdee2dfae8c2233b74f98b123308be7ccefcc6 for pr-79296
[INFO] extracting crate downcast 0.10.0 into /workspace/builds/worker-3/source
[INFO] validating manifest of crates.io crate downcast 0.10.0 on toolchain eafdee2dfae8c2233b74f98b123308be7ccefcc6
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+eafdee2dfae8c2233b74f98b123308be7ccefcc6" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate downcast 0.10.0
[INFO] finished tweaking crates.io crate downcast 0.10.0
[INFO] tweaked toml for crates.io crate downcast 0.10.0 written to /workspace/builds/worker-3/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+eafdee2dfae8c2233b74f98b123308be7ccefcc6" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+eafdee2dfae8c2233b74f98b123308be7ccefcc6" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "rustops/crates-build-env@sha256:6eabd152ff4036248d66efda456a36cb33d24b7291b33f25f75140726c88da35" "/opt/rustwide/cargo-home/bin/cargo" "+eafdee2dfae8c2233b74f98b123308be7ccefcc6" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] a4b797c0e8aeb803e384db14d9a9d05f056da0026c4ce8f388b20f5cfe959d4c
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "a4b797c0e8aeb803e384db14d9a9d05f056da0026c4ce8f388b20f5cfe959d4c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "a4b797c0e8aeb803e384db14d9a9d05f056da0026c4ce8f388b20f5cfe959d4c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a4b797c0e8aeb803e384db14d9a9d05f056da0026c4ce8f388b20f5cfe959d4c", kill_on_drop: false }`
[INFO] [stdout] a4b797c0e8aeb803e384db14d9a9d05f056da0026c4ce8f388b20f5cfe959d4c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "rustops/crates-build-env@sha256:6eabd152ff4036248d66efda456a36cb33d24b7291b33f25f75140726c88da35" "/opt/rustwide/cargo-home/bin/cargo" "+eafdee2dfae8c2233b74f98b123308be7ccefcc6" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 145c30a674c1680ff8d70fcd94327219735d0bdf13a5756a6d4911e038c1fdd6
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "145c30a674c1680ff8d70fcd94327219735d0bdf13a5756a6d4911e038c1fdd6", kill_on_drop: false }`
[INFO] [stderr]    Compiling downcast v0.10.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/lib.rs:406:20
[INFO] [stdout]     |
[INFO] [stdout] 406 |     impl_downcast!(Any);
[INFO] [stdout]     |                    ^^^ help: use `dyn`: `dyn Any`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/lib.rs:407:21
[INFO] [stdout]     |
[INFO] [stdout] 407 |     impl_downcast!((Any + Send));
[INFO] [stdout]     |                     ^^^^^^^^^^ help: use `dyn`: `dyn Any + Send`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/lib.rs:408:21
[INFO] [stdout]     |
[INFO] [stdout] 408 |     impl_downcast!((Any + Sync));
[INFO] [stdout]     |                     ^^^^^^^^^^ help: use `dyn`: `dyn Any + Sync`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/lib.rs:409:21
[INFO] [stdout]     |
[INFO] [stdout] 409 |     impl_downcast!((Any + Send + Sync));
[INFO] [stdout]     |                     ^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Any + Send + Sync`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated associated function `std::error::Error::description`: use the Display impl or to_string()
[INFO] [stdout]    --> src/lib.rs:102:51
[INFO] [stdout]     |
[INFO] [stdout] 102 |     fn description(&self) -> &str { self.mismatch.description() }
[INFO] [stdout]     |                                                   ^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 5 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.52s
[INFO] running `Command { std: "docker" "inspect" "145c30a674c1680ff8d70fcd94327219735d0bdf13a5756a6d4911e038c1fdd6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "145c30a674c1680ff8d70fcd94327219735d0bdf13a5756a6d4911e038c1fdd6", kill_on_drop: false }`
[INFO] [stdout] 145c30a674c1680ff8d70fcd94327219735d0bdf13a5756a6d4911e038c1fdd6
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "rustops/crates-build-env@sha256:6eabd152ff4036248d66efda456a36cb33d24b7291b33f25f75140726c88da35" "/opt/rustwide/cargo-home/bin/cargo" "+eafdee2dfae8c2233b74f98b123308be7ccefcc6" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 281788f103a5581573f6807063bbc58835c49c89562cb9b6f803b263098acf7d
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "281788f103a5581573f6807063bbc58835c49c89562cb9b6f803b263098acf7d", kill_on_drop: false }`
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/lib.rs:406:20
[INFO] [stdout]     |
[INFO] [stdout] 406 |     impl_downcast!(Any);
[INFO] [stdout]     |                    ^^^ help: use `dyn`: `dyn Any`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling downcast v0.10.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/lib.rs:407:21
[INFO] [stdout]     |
[INFO] [stdout] 407 |     impl_downcast!((Any + Send));
[INFO] [stdout]     |                     ^^^^^^^^^^ help: use `dyn`: `dyn Any + Send`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/lib.rs:408:21
[INFO] [stdout]     |
[INFO] [stdout] 408 |     impl_downcast!((Any + Sync));
[INFO] [stdout]     |                     ^^^^^^^^^^ help: use `dyn`: `dyn Any + Sync`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/lib.rs:409:21
[INFO] [stdout]     |
[INFO] [stdout] 409 |     impl_downcast!((Any + Send + Sync));
[INFO] [stdout]     |                     ^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Any + Send + Sync`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated associated function `std::error::Error::description`: use the Display impl or to_string()
[INFO] [stdout]    --> src/lib.rs:102:51
[INFO] [stdout]     |
[INFO] [stdout] 102 |     fn description(&self) -> &str { self.mismatch.description() }
[INFO] [stdout]     |                                                   ^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 5 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> examples/simple.rs:10:11
[INFO] [stdout]    |
[INFO] [stdout] 10 | downcast!(Animal);
[INFO] [stdout]    |           ^^^^^^ help: use `dyn`: `dyn Animal`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> examples/simple.rs:10:11
[INFO] [stdout]    |
[INFO] [stdout] 10 | downcast!(Animal);
[INFO] [stdout]    |           ^^^^^^ help: use `dyn`: `dyn Animal`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> examples/simple.rs:27:21
[INFO] [stdout]    |
[INFO] [stdout] 27 |     let animal: Box<Animal> = Box::new(Bird);
[INFO] [stdout]    |                     ^^^^^^ help: use `dyn`: `dyn Animal`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> examples/with_params.rs:11:15
[INFO] [stdout]    |
[INFO] [stdout] 11 | downcast!(<X> Animal<X> where X: Debug);
[INFO] [stdout]    |               ^^^^^^^^^ help: use `dyn`: `dyn Animal<X>`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> examples/with_params.rs:11:15
[INFO] [stdout]    |
[INFO] [stdout] 11 | downcast!(<X> Animal<X> where X: Debug);
[INFO] [stdout]    |               ^^^^^^^^^ help: use `dyn`: `dyn Animal<X>`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> examples/with_params.rs:28:21
[INFO] [stdout]    |
[INFO] [stdout] 28 |     let animal: Box<Animal<usize>> = Box::new(Bird);
[INFO] [stdout]    |                     ^^^^^^^^^^^^^ help: use `dyn`: `dyn Animal<usize>`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]  --> tests/tests.rs:6:11
[INFO] [stdout]   |
[INFO] [stdout] 6 | downcast!(Simple);
[INFO] [stdout]   |           ^^^^^^ help: use `dyn`: `dyn Simple`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]  --> tests/tests.rs:6:11
[INFO] [stdout]   |
[INFO] [stdout] 6 | downcast!(Simple);
[INFO] [stdout]   |           ^^^^^^ help: use `dyn`: `dyn Simple`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]  --> tests/tests.rs:9:18
[INFO] [stdout]   |
[INFO] [stdout] 9 | downcast!(<T, U> WithParams<T, U>);
[INFO] [stdout]   |                  ^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn WithParams<T, U>`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> tests/tests.rs:25:20
[INFO] [stdout]    |
[INFO] [stdout] 25 |     let mut a: Box<Simple> = Box::new(ImplA{ data: "data".into() });
[INFO] [stdout]    |                    ^^^^^^ help: use `dyn`: `dyn Simple`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> tests/tests.rs:38:20
[INFO] [stdout]    |
[INFO] [stdout] 38 |     let mut a: Box<WithParams<Param1, Param2>> = Box::new(ImplA{ data: "data".into() });
[INFO] [stdout]    |                    ^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn WithParams<Param1, Param2>`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/lib.rs:406:20
[INFO] [stdout]     |
[INFO] [stdout] 406 |     impl_downcast!(Any);
[INFO] [stdout]     |                    ^^^ help: use `dyn`: `dyn Any`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/lib.rs:407:21
[INFO] [stdout]     |
[INFO] [stdout] 407 |     impl_downcast!((Any + Send));
[INFO] [stdout]     |                     ^^^^^^^^^^ help: use `dyn`: `dyn Any + Send`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/lib.rs:408:21
[INFO] [stdout]     |
[INFO] [stdout] 408 |     impl_downcast!((Any + Sync));
[INFO] [stdout]     |                     ^^^^^^^^^^ help: use `dyn`: `dyn Any + Sync`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/lib.rs:409:21
[INFO] [stdout]     |
[INFO] [stdout] 409 |     impl_downcast!((Any + Send + Sync));
[INFO] [stdout]     |                     ^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Any + Send + Sync`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated associated function `std::error::Error::description`: use the Display impl or to_string()
[INFO] [stdout]    --> src/lib.rs:102:51
[INFO] [stdout]     |
[INFO] [stdout] 102 |     fn description(&self) -> &str { self.mismatch.description() }
[INFO] [stdout]     |                                                   ^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 5 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 2.32s
[INFO] [stdout] warning: 5 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "281788f103a5581573f6807063bbc58835c49c89562cb9b6f803b263098acf7d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "281788f103a5581573f6807063bbc58835c49c89562cb9b6f803b263098acf7d", kill_on_drop: false }`
[INFO] [stdout] 281788f103a5581573f6807063bbc58835c49c89562cb9b6f803b263098acf7d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "rustops/crates-build-env@sha256:6eabd152ff4036248d66efda456a36cb33d24b7291b33f25f75140726c88da35" "/opt/rustwide/cargo-home/bin/cargo" "+eafdee2dfae8c2233b74f98b123308be7ccefcc6" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] b87402ace6ebc79176546be0f7b45976dee4cdb9be6ad565cdba7773c7ebfc0b
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "b87402ace6ebc79176546be0f7b45976dee4cdb9be6ad565cdba7773c7ebfc0b", kill_on_drop: false }`
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/lib.rs:406:20
[INFO] [stderr]     |
[INFO] [stderr] 406 |     impl_downcast!(Any);
[INFO] [stderr]     |                    ^^^ help: use `dyn`: `dyn Any`
[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/lib.rs:407:21
[INFO] [stderr]     |
[INFO] [stderr] 407 |     impl_downcast!((Any + Send));
[INFO] [stderr]     |                     ^^^^^^^^^^ help: use `dyn`: `dyn Any + Send`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/lib.rs:408:21
[INFO] [stderr]     |
[INFO] [stderr] 408 |     impl_downcast!((Any + Sync));
[INFO] [stderr]     |                     ^^^^^^^^^^ help: use `dyn`: `dyn Any + Sync`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/lib.rs:409:21
[INFO] [stderr]     |
[INFO] [stderr] 409 |     impl_downcast!((Any + Send + Sync));
[INFO] [stderr]     |                     ^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Any + Send + Sync`
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated associated function `std::error::Error::description`: use the Display impl or to_string()
[INFO] [stderr]    --> src/lib.rs:102:51
[INFO] [stderr]     |
[INFO] [stderr] 102 |     fn description(&self) -> &str { self.mismatch.description() }
[INFO] [stderr]     |                                                   ^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(deprecated)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: 5 warnings emitted
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/lib.rs:406:20
[INFO] [stderr]     |
[INFO] [stderr] 406 |     impl_downcast!(Any);
[INFO] [stderr]     |                    ^^^ help: use `dyn`: `dyn Any`
[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/lib.rs:407:21
[INFO] [stderr]     |
[INFO] [stderr] 407 |     impl_downcast!((Any + Send));
[INFO] [stderr]     |                     ^^^^^^^^^^ help: use `dyn`: `dyn Any + Send`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/lib.rs:408:21
[INFO] [stderr]     |
[INFO] [stderr] 408 |     impl_downcast!((Any + Sync));
[INFO] [stderr]     |                     ^^^^^^^^^^ help: use `dyn`: `dyn Any + Sync`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/lib.rs:409:21
[INFO] [stderr]     |
[INFO] [stderr] 409 |     impl_downcast!((Any + Send + Sync));
[INFO] [stderr]     |                     ^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Any + Send + Sync`
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated associated function `std::error::Error::description`: use the Display impl or to_string()
[INFO] [stderr]    --> src/lib.rs:102:51
[INFO] [stderr]     |
[INFO] [stderr] 102 |     fn description(&self) -> &str { self.mismatch.description() }
[INFO] [stderr]     |                                                   ^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(deprecated)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: 5 warnings emitted
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> examples/with_params.rs:11:15
[INFO] [stderr]    |
[INFO] [stderr] 11 | downcast!(<X> Animal<X> where X: Debug);
[INFO] [stderr]    |               ^^^^^^^^^ help: use `dyn`: `dyn Animal<X>`
[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/with_params.rs:11:15
[INFO] [stderr]    |
[INFO] [stderr] 11 | downcast!(<X> Animal<X> where X: Debug);
[INFO] [stderr]    |               ^^^^^^^^^ help: use `dyn`: `dyn Animal<X>`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> examples/with_params.rs:28:21
[INFO] [stderr]    |
[INFO] [stderr] 28 |     let animal: Box<Animal<usize>> = Box::new(Bird);
[INFO] [stderr]    |                     ^^^^^^^^^^^^^ help: use `dyn`: `dyn Animal<usize>`
[INFO] [stderr] 
[INFO] [stderr] warning: 3 warnings emitted
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> examples/simple.rs:10:11
[INFO] [stderr]    |
[INFO] [stderr] 10 | downcast!(Animal);
[INFO] [stderr]    |           ^^^^^^ help: use `dyn`: `dyn Animal`
[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/simple.rs:10:11
[INFO] [stderr]    |
[INFO] [stderr] 10 | downcast!(Animal);
[INFO] [stderr]    |           ^^^^^^ help: use `dyn`: `dyn Animal`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> examples/simple.rs:27:21
[INFO] [stderr]    |
[INFO] [stderr] 27 |     let animal: Box<Animal> = Box::new(Bird);
[INFO] [stderr]    |                     ^^^^^^ help: use `dyn`: `dyn Animal`
[INFO] [stderr] 
[INFO] [stderr] warning: 3 warnings emitted
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]  --> tests/tests.rs:6:11
[INFO] [stderr]   |
[INFO] [stderr] 6 | downcast!(Simple);
[INFO] [stderr]   |           ^^^^^^ help: use `dyn`: `dyn Simple`
[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]  --> tests/tests.rs:6:11
[INFO] [stderr]   |
[INFO] [stderr] 6 | downcast!(Simple);
[INFO] [stderr]   |           ^^^^^^ help: use `dyn`: `dyn Simple`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]  --> tests/tests.rs:9:18
[INFO] [stderr]   |
[INFO] [stderr] 9 | downcast!(<T, U> WithParams<T, U>);
[INFO] [stderr]   |                  ^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn WithParams<T, U>`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> tests/tests.rs:25:20
[INFO] [stderr]    |
[INFO] [stderr] 25 |     let mut a: Box<Simple> = Box::new(ImplA{ data: "data".into() });
[INFO] [stderr]    |                    ^^^^^^ help: use `dyn`: `dyn Simple`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> tests/tests.rs:38:20
[INFO] [stderr]    |
[INFO] [stderr] 38 |     let mut a: Box<WithParams<Param1, Param2>> = Box::new(ImplA{ data: "data".into() });
[INFO] [stderr]    |                    ^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn WithParams<Param1, Param2>`
[INFO] [stderr] 
[INFO] [stderr] warning: 5 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/downcast-5e07de87d50e6853
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/tests-115a1192410bf9c7
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 2 tests
[INFO] [stdout] test simple ... ok
[INFO] [stderr]    Doc-tests downcast
[INFO] [stdout] test with_params ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 2 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 4 tests
[INFO] [stdout] test src/lib.rs - downcast_methods (line 341) ... ignored
[INFO] [stdout] test src/lib.rs - downcast_methods (line 347) ... ignored
[INFO] [stdout] test src/lib.rs - impl_downcast (line 173) ... ignored
[INFO] [stdout] test src/lib.rs - impl_downcast (line 181) ... ignored
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 4 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "b87402ace6ebc79176546be0f7b45976dee4cdb9be6ad565cdba7773c7ebfc0b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b87402ace6ebc79176546be0f7b45976dee4cdb9be6ad565cdba7773c7ebfc0b", kill_on_drop: false }`
[INFO] [stdout] b87402ace6ebc79176546be0f7b45976dee4cdb9be6ad565cdba7773c7ebfc0b