[INFO] fetching crate crux 0.3.0...
[INFO] checking crux-0.3.0 against master#385fa9d845dd326c6bbfd58c22244215e431948a for absurd-question-mark-desugar
[INFO] extracting crate crux 0.3.0 into /workspace/builds/worker-2-tc1/source
[INFO] validating manifest of crates.io crate crux 0.3.0 on toolchain 385fa9d845dd326c6bbfd58c22244215e431948a
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate crux 0.3.0
[INFO] finished tweaking crates.io crate crux 0.3.0
[INFO] tweaked toml for crates.io crate crux 0.3.0 written to /workspace/builds/worker-2-tc1/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 9a26f23d9684dd12ecfbc5b18d5b0dc90d9b3bc8dd127ea4a030e79f2c8c7dc4
[INFO] running `Command { std: "docker" "start" "-a" "9a26f23d9684dd12ecfbc5b18d5b0dc90d9b3bc8dd127ea4a030e79f2c8c7dc4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "9a26f23d9684dd12ecfbc5b18d5b0dc90d9b3bc8dd127ea4a030e79f2c8c7dc4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9a26f23d9684dd12ecfbc5b18d5b0dc90d9b3bc8dd127ea4a030e79f2c8c7dc4", kill_on_drop: false }`
[INFO] [stdout] 9a26f23d9684dd12ecfbc5b18d5b0dc90d9b3bc8dd127ea4a030e79f2c8c7dc4
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] c0c1fe012d2c3006650256e280b9c0ffb3ce7e28697072a8a639fb0c9932e41f
[INFO] running `Command { std: "docker" "start" "-a" "c0c1fe012d2c3006650256e280b9c0ffb3ce7e28697072a8a639fb0c9932e41f", kill_on_drop: false }`
[INFO] [stderr]     Checking crux v0.3.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/store.rs:10:40
[INFO] [stdout]    |
[INFO] [stdout] 10 | type ArcMutexMiddleware<T> = Arc<Mutex<Middleware<T> + Send + Sync + 'static>>;
[INFO] [stdout]    |                                        ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout] help: if this is an object-safe trait, use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 10 | type ArcMutexMiddleware<T> = Arc<Mutex<dyn Middleware<T> + Send + Sync + 'static>>;
[INFO] [stdout]    |                                        +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]  --> src/middleware.rs:5:61
[INFO] [stdout]   |
[INFO] [stdout] 5 |     fn dispatch(&mut self, store: &mut Store<T>, next: &mut FnMut(T::Action), action: T::Action);
[INFO] [stdout]   |                                                             ^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]   = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: if this is an object-safe trait, use `dyn`
[INFO] [stdout]   |
[INFO] [stdout] 5 |     fn dispatch(&mut self, store: &mut Store<T>, next: &mut dyn FnMut(T::Action), action: T::Action);
[INFO] [stdout]   |                                                             +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/store.rs:10:40
[INFO] [stdout]    |
[INFO] [stdout] 10 | type ArcMutexMiddleware<T> = Arc<Mutex<Middleware<T> + Send + Sync + 'static>>;
[INFO] [stdout]    |                                        ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout] help: if this is an object-safe trait, use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 10 | type ArcMutexMiddleware<T> = Arc<Mutex<dyn Middleware<T> + Send + Sync + 'static>>;
[INFO] [stdout]    |                                        +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]  --> src/middleware.rs:5:61
[INFO] [stdout]   |
[INFO] [stdout] 5 |     fn dispatch(&mut self, store: &mut Store<T>, next: &mut FnMut(T::Action), action: T::Action);
[INFO] [stdout]   |                                                             ^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]   = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: if this is an object-safe trait, use `dyn`
[INFO] [stdout]   |
[INFO] [stdout] 5 |     fn dispatch(&mut self, store: &mut Store<T>, next: &mut dyn FnMut(T::Action), action: T::Action);
[INFO] [stdout]   |                                                             +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> tests/lib.rs:35:69
[INFO] [stdout]    |
[INFO] [stdout] 35 |     fn dispatch(&mut self, store: &mut Store<TestState>, next: &mut FnMut(TestAction), action: TestAction) {
[INFO] [stdout]    |                                                                     ^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout] help: if this is an object-safe trait, use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 35 |     fn dispatch(&mut self, store: &mut Store<TestState>, next: &mut dyn FnMut(TestAction), action: TestAction) {
[INFO] [stdout]    |                                                                     +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> tests/lib.rs:57:69
[INFO] [stdout]    |
[INFO] [stdout] 57 |     fn dispatch(&mut self, store: &mut Store<TestState>, next: &mut FnMut(TestAction), action: TestAction) {
[INFO] [stdout]    |                                                                     ^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: if this is an object-safe trait, use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 57 |     fn dispatch(&mut self, store: &mut Store<TestState>, next: &mut dyn FnMut(TestAction), action: TestAction) {
[INFO] [stdout]    |                                                                     +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.37s
[INFO] running `Command { std: "docker" "inspect" "c0c1fe012d2c3006650256e280b9c0ffb3ce7e28697072a8a639fb0c9932e41f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c0c1fe012d2c3006650256e280b9c0ffb3ce7e28697072a8a639fb0c9932e41f", kill_on_drop: false }`
[INFO] [stdout] c0c1fe012d2c3006650256e280b9c0ffb3ce7e28697072a8a639fb0c9932e41f
[INFO] checking crux-0.3.0 against try#645bb72776a6a56a1a8f52631a44bd082b2ba509 for absurd-question-mark-desugar
[INFO] extracting crate crux 0.3.0 into /workspace/builds/worker-2-tc2/source
[INFO] validating manifest of crates.io crate crux 0.3.0 on toolchain 645bb72776a6a56a1a8f52631a44bd082b2ba509
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+645bb72776a6a56a1a8f52631a44bd082b2ba509" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate crux 0.3.0
[INFO] finished tweaking crates.io crate crux 0.3.0
[INFO] tweaked toml for crates.io crate crux 0.3.0 written to /workspace/builds/worker-2-tc2/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+645bb72776a6a56a1a8f52631a44bd082b2ba509" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+645bb72776a6a56a1a8f52631a44bd082b2ba509" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+645bb72776a6a56a1a8f52631a44bd082b2ba509" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 259f87af62fe438441ac21e436333f257fc6a9d69ea6c22c990165ce6b8560a7
[INFO] running `Command { std: "docker" "start" "-a" "259f87af62fe438441ac21e436333f257fc6a9d69ea6c22c990165ce6b8560a7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "259f87af62fe438441ac21e436333f257fc6a9d69ea6c22c990165ce6b8560a7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "259f87af62fe438441ac21e436333f257fc6a9d69ea6c22c990165ce6b8560a7", kill_on_drop: false }`
[INFO] [stdout] 259f87af62fe438441ac21e436333f257fc6a9d69ea6c22c990165ce6b8560a7
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+645bb72776a6a56a1a8f52631a44bd082b2ba509" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 5048ca33b5bc87de1dd25a58f15cb6d638bfc3dc48133f4a75f0961e4e2b3c84
[INFO] running `Command { std: "docker" "start" "-a" "5048ca33b5bc87de1dd25a58f15cb6d638bfc3dc48133f4a75f0961e4e2b3c84", kill_on_drop: false }`
[INFO] [stderr]     Checking crux v0.3.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/store.rs:10:40
[INFO] [stdout]    |
[INFO] [stdout] 10 | type ArcMutexMiddleware<T> = Arc<Mutex<Middleware<T> + Send + Sync + 'static>>;
[INFO] [stdout]    |                                        ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout] help: if this is an object-safe trait, use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 10 | type ArcMutexMiddleware<T> = Arc<Mutex<dyn Middleware<T> + Send + Sync + 'static>>;
[INFO] [stdout]    |                                        +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]  --> src/middleware.rs:5:61
[INFO] [stdout]   |
[INFO] [stdout] 5 |     fn dispatch(&mut self, store: &mut Store<T>, next: &mut FnMut(T::Action), action: T::Action);
[INFO] [stdout]   |                                                             ^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]   = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: if this is an object-safe trait, use `dyn`
[INFO] [stdout]   |
[INFO] [stdout] 5 |     fn dispatch(&mut self, store: &mut Store<T>, next: &mut dyn FnMut(T::Action), action: T::Action);
[INFO] [stdout]   |                                                             +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/store.rs:10:40
[INFO] [stdout]    |
[INFO] [stdout] 10 | type ArcMutexMiddleware<T> = Arc<Mutex<Middleware<T> + Send + Sync + 'static>>;
[INFO] [stdout]    |                                        ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout] help: if this is an object-safe trait, use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 10 | type ArcMutexMiddleware<T> = Arc<Mutex<dyn Middleware<T> + Send + Sync + 'static>>;
[INFO] [stdout]    |                                        +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]  --> src/middleware.rs:5:61
[INFO] [stdout]   |
[INFO] [stdout] 5 |     fn dispatch(&mut self, store: &mut Store<T>, next: &mut FnMut(T::Action), action: T::Action);
[INFO] [stdout]   |                                                             ^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]   = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: if this is an object-safe trait, use `dyn`
[INFO] [stdout]   |
[INFO] [stdout] 5 |     fn dispatch(&mut self, store: &mut Store<T>, next: &mut dyn FnMut(T::Action), action: T::Action);
[INFO] [stdout]   |                                                             +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> tests/lib.rs:35:69
[INFO] [stdout]    |
[INFO] [stdout] 35 |     fn dispatch(&mut self, store: &mut Store<TestState>, next: &mut FnMut(TestAction), action: TestAction) {
[INFO] [stdout]    |                                                                     ^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout] help: if this is an object-safe trait, use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 35 |     fn dispatch(&mut self, store: &mut Store<TestState>, next: &mut dyn FnMut(TestAction), action: TestAction) {
[INFO] [stdout]    |                                                                     +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> tests/lib.rs:57:69
[INFO] [stdout]    |
[INFO] [stdout] 57 |     fn dispatch(&mut self, store: &mut Store<TestState>, next: &mut FnMut(TestAction), action: TestAction) {
[INFO] [stdout]    |                                                                     ^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: if this is an object-safe trait, use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 57 |     fn dispatch(&mut self, store: &mut Store<TestState>, next: &mut dyn FnMut(TestAction), action: TestAction) {
[INFO] [stdout]    |                                                                     +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.24s
[INFO] running `Command { std: "docker" "inspect" "5048ca33b5bc87de1dd25a58f15cb6d638bfc3dc48133f4a75f0961e4e2b3c84", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5048ca33b5bc87de1dd25a58f15cb6d638bfc3dc48133f4a75f0961e4e2b3c84", kill_on_drop: false }`
[INFO] [stdout] 5048ca33b5bc87de1dd25a58f15cb6d638bfc3dc48133f4a75f0961e4e2b3c84