[INFO] fetching crate alchemy-lifecycle 0.1.0...
[INFO] testing alchemy-lifecycle-0.1.0 against beta-2021-09-08 for beta-1.56-1
[INFO] extracting crate alchemy-lifecycle 0.1.0 into /workspace/builds/worker-94/source
[INFO] validating manifest of crates.io crate alchemy-lifecycle 0.1.0 on toolchain beta-2021-09-08
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-09-08" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate alchemy-lifecycle 0.1.0
[INFO] finished tweaking crates.io crate alchemy-lifecycle 0.1.0
[INFO] tweaked toml for crates.io crate alchemy-lifecycle 0.1.0 written to /workspace/builds/worker-94/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-09-08" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-09-08" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-94/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-94/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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-09-08" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] c6a5c794b989115bbc559c20cdd58841cc164b670354488b9f7ecb7ea98dd1c0
[INFO] running `Command { std: "docker" "start" "-a" "c6a5c794b989115bbc559c20cdd58841cc164b670354488b9f7ecb7ea98dd1c0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "c6a5c794b989115bbc559c20cdd58841cc164b670354488b9f7ecb7ea98dd1c0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c6a5c794b989115bbc559c20cdd58841cc164b670354488b9f7ecb7ea98dd1c0", kill_on_drop: false }`
[INFO] [stdout] c6a5c794b989115bbc559c20cdd58841cc164b670354488b9f7ecb7ea98dd1c0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-94/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-94/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=warn" "-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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-09-08" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 77bd5b84f816347af0792a6070a2963559b986efd1698e67a1ff7e9272c81b0a
[INFO] running `Command { std: "docker" "start" "-a" "77bd5b84f816347af0792a6070a2963559b986efd1698e67a1ff7e9272c81b0a", kill_on_drop: false }`
[INFO] [stderr]    Compiling toml v0.5.8
[INFO] [stderr]    Compiling alchemy-styles v0.1.0
[INFO] [stderr]    Compiling alchemy-lifecycle v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]  --> src/error.rs:7:22
[INFO] [stdout]   |
[INFO] [stdout] 7 | pub type Error = Box<std::error::Error>;
[INFO] [stdout]   |                      ^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn std::error::Error`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout]   = warning: this is accepted in the current edition (Rust 2018) 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] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/rsx/virtual_node.rs:25:59
[INFO] [stdout]    |
[INFO] [stdout] 25 |     pub create_component_fn: fn(key: ComponentKey) -> Box<Component>,
[INFO] [stdout]    |                                                           ^^^^^^^^^ help: use `dyn`: `dyn Component`
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2018) 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] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/rsx/virtual_node.rs:30:20
[INFO] [stdout]    |
[INFO] [stdout] 30 |     pub props: Box<Any>,
[INFO] [stdout]    |                    ^^^ help: use `dyn`: `dyn Any`
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2018) 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] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/rsx/mod.rs:34:49
[INFO] [stdout]    |
[INFO] [stdout] 34 |         create_fn: fn(key: ComponentKey) -> Box<Component>,
[INFO] [stdout]    |                                                 ^^^^^^^^^ help: use `dyn`: `dyn Component`
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2018) 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] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/traits.rs:76:45
[INFO] [stdout]    |
[INFO] [stdout] 76 |     fn set_props(&mut self, new_props: &mut Any);
[INFO] [stdout]    |                                             ^^^ help: use `dyn`: `dyn Any`
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2018) 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] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/reconciler/instance.rs:12:31
[INFO] [stdout]    |
[INFO] [stdout] 12 |     pub(crate) component: Box<Component + 'static>,
[INFO] [stdout]    |                               ^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Component + 'static`
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2018) 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] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/reconciler/generic_root_view_stub.rs:24:37
[INFO] [stdout]    |
[INFO] [stdout] 24 |     fn set_props(&mut self, _: &mut Any) {}    
[INFO] [stdout]    |                                     ^^^ help: use `dyn`: `dyn Any`
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2018) 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] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/reconciler/mod.rs:56:109
[INFO] [stdout]    |
[INFO] [stdout] 56 |     pub fn register_root_component<C: Component + 'static>(&self, component: C) -> Result<ComponentKey, Box<Error>> {
[INFO] [stdout]    |                                                                                                             ^^^^^ help: use `dyn`: `dyn Error`
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2018) 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] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/reconciler/mod.rs:88:25
[INFO] [stdout]    |
[INFO] [stdout] 88 |     ) -> Result<(), Box<Error>> {
[INFO] [stdout]    |                         ^^^^^ help: use `dyn`: `dyn Error`
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2018) 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] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/reconciler/mod.rs:141:21
[INFO] [stdout]     |
[INFO] [stdout] 141 | ) -> Result<(), Box<Error>> {
[INFO] [stdout]     |                     ^^^^^ help: use `dyn`: `dyn Error`
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2018) 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] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/reconciler/mod.rs:227:31
[INFO] [stdout]     |
[INFO] [stdout] 227 | ) -> Result<ComponentKey, Box<Error>> {
[INFO] [stdout]     |                               ^^^^^ help: use `dyn`: `dyn Error`
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2018) 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] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/reconciler/mod.rs:301:34
[INFO] [stdout]     |
[INFO] [stdout] 301 | ) -> Result<Vec<LayoutNode>, Box<Error>> {
[INFO] [stdout]     |                                  ^^^^^ help: use `dyn`: `dyn Error`
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2018) 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] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/reconciler/mod.rs:340:21
[INFO] [stdout]     |
[INFO] [stdout] 340 | ) -> Result<(), Box<Error>> {
[INFO] [stdout]     |                     ^^^^^ help: use `dyn`: `dyn Error`
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2018) 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] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/reconciler/mod.rs:367:21
[INFO] [stdout]     |
[INFO] [stdout] 367 | ) -> Result<(), Box<Error>> {
[INFO] [stdout]     |                     ^^^^^ help: use `dyn`: `dyn Error`
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2018) 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] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `children`
[INFO] [stdout]    --> src/traits.rs:172:22
[INFO] [stdout]     |
[INFO] [stdout] 172 |     fn render(&self, children: Vec<RSX>) -> Result<RSX, Error> { Ok(RSX::None) }
[INFO] [stdout]     |                      ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_children`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/reconciler/mod.rs:109:17
[INFO] [stdout]     |
[INFO] [stdout] 109 |             let mut root_instance = component_store.get_mut(key)?;
[INFO] [stdout]     |                 ----^^^^^^^^^^^^^
[INFO] [stdout]     |                 |
[INFO] [stdout]     |                 help: remove this `mut`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/reconciler/mod.rs:173:29
[INFO] [stdout]     |
[INFO] [stdout] 173 |     if let RSX::VirtualNode(mut child) = new_tree {
[INFO] [stdout]     |                             ----^^^^^
[INFO] [stdout]     |                             |
[INFO] [stdout]     |                             help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `set_children`
[INFO] [stdout]    --> src/reconciler/storage.rs:114:12
[INFO] [stdout]     |
[INFO] [stdout] 114 |     pub fn set_children(&mut self, key: ComponentKey, children: Vec<ComponentKey>) -> Result<(), Error> {
[INFO] [stdout]     |            ^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `remove_child`
[INFO] [stdout]    --> src/reconciler/storage.rs:131:12
[INFO] [stdout]     |
[INFO] [stdout] 131 |     pub fn remove_child(&mut self, key: ComponentKey, child: ComponentKey) -> Result<ComponentKey, Error> {
[INFO] [stdout]     |            ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `remove_child_at_index`
[INFO] [stdout]    --> src/reconciler/storage.rs:138:12
[INFO] [stdout]     |
[INFO] [stdout] 138 |     pub fn remove_child_at_index(&mut self, key: ComponentKey, index: usize) -> Result<ComponentKey, Error> {
[INFO] [stdout]     |            ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `replace_child_at_index`
[INFO] [stdout]    --> src/reconciler/storage.rs:144:12
[INFO] [stdout]     |
[INFO] [stdout] 144 |     pub fn replace_child_at_index(&mut self, key: ComponentKey, index: usize, child: ComponentKey) -> Result<ComponentKey, Error> {
[INFO] [stdout]     |            ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `child_count`
[INFO] [stdout]    --> src/reconciler/storage.rs:155:12
[INFO] [stdout]     |
[INFO] [stdout] 155 |     pub fn child_count(&self, key: ComponentKey) -> Result<usize, Error> {
[INFO] [stdout]     |            ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `InvalidKey`
[INFO] [stdout]  --> src/reconciler/error.rs:9:5
[INFO] [stdout]   |
[INFO] [stdout] 9 |     InvalidKey,
[INFO] [stdout]   |     ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `get_default_props`
[INFO] [stdout]   --> src/reconciler/generic_root_view_stub.rs:18:8
[INFO] [stdout]    |
[INFO] [stdout] 18 |     fn get_default_props() -> GenericRootViewProps {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct is never constructed: `GenericRootProps`
[INFO] [stdout]   --> src/reconciler/mod.rs:31:8
[INFO] [stdout]    |
[INFO] [stdout] 31 | struct GenericRootProps;
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `queued_state_updates`
[INFO] [stdout]   --> src/reconciler/mod.rs:34:5
[INFO] [stdout]    |
[INFO] [stdout] 34 |     queued_state_updates: Mutex<Vec<i32>>,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/reconciler/mod.rs:117:13
[INFO] [stdout]     |
[INFO] [stdout] 117 |             layout_store.set_style(layout, style);
[INFO] [stdout]     |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 27 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 6.32s
[INFO] running `Command { std: "docker" "inspect" "77bd5b84f816347af0792a6070a2963559b986efd1698e67a1ff7e9272c81b0a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "77bd5b84f816347af0792a6070a2963559b986efd1698e67a1ff7e9272c81b0a", kill_on_drop: false }`
[INFO] [stdout] 77bd5b84f816347af0792a6070a2963559b986efd1698e67a1ff7e9272c81b0a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-94/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-94/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=warn" "-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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-09-08" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 87b463575b0d0990fa0c115d110a6055fc912a63b1eb9ea52c2db459500f1623
[INFO] running `Command { std: "docker" "start" "-a" "87b463575b0d0990fa0c115d110a6055fc912a63b1eb9ea52c2db459500f1623", kill_on_drop: false }`
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]  --> src/error.rs:7:22
[INFO] [stdout]   |
[INFO] [stdout] 7 | pub type Error = Box<std::error::Error>;
[INFO] [stdout]   |                      ^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn std::error::Error`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout]   = warning: this is accepted in the current edition (Rust 2018) 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] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/rsx/virtual_node.rs:25:59
[INFO] [stdout]    |
[INFO] [stdout] 25 |     pub create_component_fn: fn(key: ComponentKey) -> Box<Component>,
[INFO] [stdout]    |                                                           ^^^^^^^^^ help: use `dyn`: `dyn Component`
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2018) 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] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/rsx/virtual_node.rs:30:20
[INFO] [stdout]    |
[INFO] [stdout] 30 |     pub props: Box<Any>,
[INFO] [stdout]    |                    ^^^ help: use `dyn`: `dyn Any`
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2018) 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] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/rsx/mod.rs:34:49
[INFO] [stdout]    |
[INFO] [stdout] 34 |         create_fn: fn(key: ComponentKey) -> Box<Component>,
[INFO] [stdout]    |                                                 ^^^^^^^^^ help: use `dyn`: `dyn Component`
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2018) 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] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/traits.rs:76:45
[INFO] [stdout]    |
[INFO] [stdout] 76 |     fn set_props(&mut self, new_props: &mut Any);
[INFO] [stdout]    |                                             ^^^ help: use `dyn`: `dyn Any`
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2018) 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] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/reconciler/instance.rs:12:31
[INFO] [stdout]    |
[INFO] [stdout] 12 |     pub(crate) component: Box<Component + 'static>,
[INFO] [stdout]    |                               ^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Component + 'static`
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2018) 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] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/reconciler/generic_root_view_stub.rs:24:37
[INFO] [stdout]    |
[INFO] [stdout] 24 |     fn set_props(&mut self, _: &mut Any) {}    
[INFO] [stdout]    |                                     ^^^ help: use `dyn`: `dyn Any`
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2018) 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] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/reconciler/mod.rs:56:109
[INFO] [stdout]    |
[INFO] [stdout] 56 |     pub fn register_root_component<C: Component + 'static>(&self, component: C) -> Result<ComponentKey, Box<Error>> {
[INFO] [stdout]    |                                                                                                             ^^^^^ help: use `dyn`: `dyn Error`
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2018) 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] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/reconciler/mod.rs:88:25
[INFO] [stdout]    |
[INFO] [stdout] 88 |     ) -> Result<(), Box<Error>> {
[INFO] [stdout]    |                         ^^^^^ help: use `dyn`: `dyn Error`
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2018) 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] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/reconciler/mod.rs:141:21
[INFO] [stdout]     |
[INFO] [stdout] 141 | ) -> Result<(), Box<Error>> {
[INFO] [stdout]     |                     ^^^^^ help: use `dyn`: `dyn Error`
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2018) 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] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/reconciler/mod.rs:227:31
[INFO] [stdout]     |
[INFO] [stdout] 227 | ) -> Result<ComponentKey, Box<Error>> {
[INFO] [stdout]     |                               ^^^^^ help: use `dyn`: `dyn Error`
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2018) 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] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/reconciler/mod.rs:301:34
[INFO] [stdout]     |
[INFO] [stdout] 301 | ) -> Result<Vec<LayoutNode>, Box<Error>> {
[INFO] [stdout]     |                                  ^^^^^ help: use `dyn`: `dyn Error`
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2018) 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] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/reconciler/mod.rs:340:21
[INFO] [stdout]     |
[INFO] [stdout] 340 | ) -> Result<(), Box<Error>> {
[INFO] [stdout]     |                     ^^^^^ help: use `dyn`: `dyn Error`
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2018) 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] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/reconciler/mod.rs:367:21
[INFO] [stdout]     |
[INFO] [stdout] 367 | ) -> Result<(), Box<Error>> {
[INFO] [stdout]     |                     ^^^^^ help: use `dyn`: `dyn Error`
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2018) 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] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `children`
[INFO] [stdout]    --> src/traits.rs:172:22
[INFO] [stdout]     |
[INFO] [stdout] 172 |     fn render(&self, children: Vec<RSX>) -> Result<RSX, Error> { Ok(RSX::None) }
[INFO] [stdout]     |                      ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_children`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/reconciler/mod.rs:109:17
[INFO] [stdout]     |
[INFO] [stdout] 109 |             let mut root_instance = component_store.get_mut(key)?;
[INFO] [stdout]     |                 ----^^^^^^^^^^^^^
[INFO] [stdout]     |                 |
[INFO] [stdout]     |                 help: remove this `mut`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/reconciler/mod.rs:173:29
[INFO] [stdout]     |
[INFO] [stdout] 173 |     if let RSX::VirtualNode(mut child) = new_tree {
[INFO] [stdout]     |                             ----^^^^^
[INFO] [stdout]     |                             |
[INFO] [stdout]     |                             help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `set_children`
[INFO] [stdout]    --> src/reconciler/storage.rs:114:12
[INFO] [stdout]     |
[INFO] [stdout] 114 |     pub fn set_children(&mut self, key: ComponentKey, children: Vec<ComponentKey>) -> Result<(), Error> {
[INFO] [stdout]     |            ^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `remove_child`
[INFO] [stdout]    --> src/reconciler/storage.rs:131:12
[INFO] [stdout]     |
[INFO] [stdout] 131 |     pub fn remove_child(&mut self, key: ComponentKey, child: ComponentKey) -> Result<ComponentKey, Error> {
[INFO] [stdout]     |            ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `remove_child_at_index`
[INFO] [stdout]    --> src/reconciler/storage.rs:138:12
[INFO] [stdout]     |
[INFO] [stdout] 138 |     pub fn remove_child_at_index(&mut self, key: ComponentKey, index: usize) -> Result<ComponentKey, Error> {
[INFO] [stdout]     |            ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `replace_child_at_index`
[INFO] [stdout]    --> src/reconciler/storage.rs:144:12
[INFO] [stdout]     |
[INFO] [stdout] 144 |     pub fn replace_child_at_index(&mut self, key: ComponentKey, index: usize, child: ComponentKey) -> Result<ComponentKey, Error> {
[INFO] [stdout]     |            ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `child_count`
[INFO] [stdout]    --> src/reconciler/storage.rs:155:12
[INFO] [stdout]     |
[INFO] [stdout] 155 |     pub fn child_count(&self, key: ComponentKey) -> Result<usize, Error> {
[INFO] [stdout]     |            ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `InvalidKey`
[INFO] [stdout]  --> src/reconciler/error.rs:9:5
[INFO] [stdout]   |
[INFO] [stdout] 9 |     InvalidKey,
[INFO] [stdout]   |     ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `get_default_props`
[INFO] [stdout]   --> src/reconciler/generic_root_view_stub.rs:18:8
[INFO] [stdout]    |
[INFO] [stdout] 18 |     fn get_default_props() -> GenericRootViewProps {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct is never constructed: `GenericRootProps`
[INFO] [stdout]   --> src/reconciler/mod.rs:31:8
[INFO] [stdout]    |
[INFO] [stdout] 31 | struct GenericRootProps;
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `queued_state_updates`
[INFO] [stdout]   --> src/reconciler/mod.rs:34:5
[INFO] [stdout]    |
[INFO] [stdout] 34 |     queued_state_updates: Mutex<Vec<i32>>,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/reconciler/mod.rs:117:13
[INFO] [stdout]     |
[INFO] [stdout] 117 |             layout_store.set_style(layout, style);
[INFO] [stdout]     |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 27 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling alchemy-lifecycle v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]  --> src/error.rs:7:22
[INFO] [stdout]   |
[INFO] [stdout] 7 | pub type Error = Box<std::error::Error>;
[INFO] [stdout]   |                      ^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn std::error::Error`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout]   = warning: this is accepted in the current edition (Rust 2018) 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] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/rsx/virtual_node.rs:25:59
[INFO] [stdout]    |
[INFO] [stdout] 25 |     pub create_component_fn: fn(key: ComponentKey) -> Box<Component>,
[INFO] [stdout]    |                                                           ^^^^^^^^^ help: use `dyn`: `dyn Component`
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2018) 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] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/rsx/virtual_node.rs:30:20
[INFO] [stdout]    |
[INFO] [stdout] 30 |     pub props: Box<Any>,
[INFO] [stdout]    |                    ^^^ help: use `dyn`: `dyn Any`
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2018) 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] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/rsx/mod.rs:34:49
[INFO] [stdout]    |
[INFO] [stdout] 34 |         create_fn: fn(key: ComponentKey) -> Box<Component>,
[INFO] [stdout]    |                                                 ^^^^^^^^^ help: use `dyn`: `dyn Component`
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2018) 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] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/traits.rs:76:45
[INFO] [stdout]    |
[INFO] [stdout] 76 |     fn set_props(&mut self, new_props: &mut Any);
[INFO] [stdout]    |                                             ^^^ help: use `dyn`: `dyn Any`
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2018) 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] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/reconciler/instance.rs:12:31
[INFO] [stdout]    |
[INFO] [stdout] 12 |     pub(crate) component: Box<Component + 'static>,
[INFO] [stdout]    |                               ^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Component + 'static`
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2018) 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] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/reconciler/generic_root_view_stub.rs:24:37
[INFO] [stdout]    |
[INFO] [stdout] 24 |     fn set_props(&mut self, _: &mut Any) {}    
[INFO] [stdout]    |                                     ^^^ help: use `dyn`: `dyn Any`
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2018) 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] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/reconciler/mod.rs:56:109
[INFO] [stdout]    |
[INFO] [stdout] 56 |     pub fn register_root_component<C: Component + 'static>(&self, component: C) -> Result<ComponentKey, Box<Error>> {
[INFO] [stdout]    |                                                                                                             ^^^^^ help: use `dyn`: `dyn Error`
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2018) 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] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/reconciler/mod.rs:88:25
[INFO] [stdout]    |
[INFO] [stdout] 88 |     ) -> Result<(), Box<Error>> {
[INFO] [stdout]    |                         ^^^^^ help: use `dyn`: `dyn Error`
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2018) 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] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/reconciler/mod.rs:141:21
[INFO] [stdout]     |
[INFO] [stdout] 141 | ) -> Result<(), Box<Error>> {
[INFO] [stdout]     |                     ^^^^^ help: use `dyn`: `dyn Error`
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2018) 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] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/reconciler/mod.rs:227:31
[INFO] [stdout]     |
[INFO] [stdout] 227 | ) -> Result<ComponentKey, Box<Error>> {
[INFO] [stdout]     |                               ^^^^^ help: use `dyn`: `dyn Error`
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2018) 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] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/reconciler/mod.rs:301:34
[INFO] [stdout]     |
[INFO] [stdout] 301 | ) -> Result<Vec<LayoutNode>, Box<Error>> {
[INFO] [stdout]     |                                  ^^^^^ help: use `dyn`: `dyn Error`
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2018) 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] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/reconciler/mod.rs:340:21
[INFO] [stdout]     |
[INFO] [stdout] 340 | ) -> Result<(), Box<Error>> {
[INFO] [stdout]     |                     ^^^^^ help: use `dyn`: `dyn Error`
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2018) 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] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/reconciler/mod.rs:367:21
[INFO] [stdout]     |
[INFO] [stdout] 367 | ) -> Result<(), Box<Error>> {
[INFO] [stdout]     |                     ^^^^^ help: use `dyn`: `dyn Error`
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2018) 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] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `children`
[INFO] [stdout]    --> src/traits.rs:172:22
[INFO] [stdout]     |
[INFO] [stdout] 172 |     fn render(&self, children: Vec<RSX>) -> Result<RSX, Error> { Ok(RSX::None) }
[INFO] [stdout]     |                      ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_children`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/reconciler/mod.rs:109:17
[INFO] [stdout]     |
[INFO] [stdout] 109 |             let mut root_instance = component_store.get_mut(key)?;
[INFO] [stdout]     |                 ----^^^^^^^^^^^^^
[INFO] [stdout]     |                 |
[INFO] [stdout]     |                 help: remove this `mut`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/reconciler/mod.rs:173:29
[INFO] [stdout]     |
[INFO] [stdout] 173 |     if let RSX::VirtualNode(mut child) = new_tree {
[INFO] [stdout]     |                             ----^^^^^
[INFO] [stdout]     |                             |
[INFO] [stdout]     |                             help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `set_children`
[INFO] [stdout]    --> src/reconciler/storage.rs:114:12
[INFO] [stdout]     |
[INFO] [stdout] 114 |     pub fn set_children(&mut self, key: ComponentKey, children: Vec<ComponentKey>) -> Result<(), Error> {
[INFO] [stdout]     |            ^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `remove_child`
[INFO] [stdout]    --> src/reconciler/storage.rs:131:12
[INFO] [stdout]     |
[INFO] [stdout] 131 |     pub fn remove_child(&mut self, key: ComponentKey, child: ComponentKey) -> Result<ComponentKey, Error> {
[INFO] [stdout]     |            ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `remove_child_at_index`
[INFO] [stdout]    --> src/reconciler/storage.rs:138:12
[INFO] [stdout]     |
[INFO] [stdout] 138 |     pub fn remove_child_at_index(&mut self, key: ComponentKey, index: usize) -> Result<ComponentKey, Error> {
[INFO] [stdout]     |            ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `replace_child_at_index`
[INFO] [stdout]    --> src/reconciler/storage.rs:144:12
[INFO] [stdout]     |
[INFO] [stdout] 144 |     pub fn replace_child_at_index(&mut self, key: ComponentKey, index: usize, child: ComponentKey) -> Result<ComponentKey, Error> {
[INFO] [stdout]     |            ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `child_count`
[INFO] [stdout]    --> src/reconciler/storage.rs:155:12
[INFO] [stdout]     |
[INFO] [stdout] 155 |     pub fn child_count(&self, key: ComponentKey) -> Result<usize, Error> {
[INFO] [stdout]     |            ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `InvalidKey`
[INFO] [stdout]  --> src/reconciler/error.rs:9:5
[INFO] [stdout]   |
[INFO] [stdout] 9 |     InvalidKey,
[INFO] [stdout]   |     ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `get_default_props`
[INFO] [stdout]   --> src/reconciler/generic_root_view_stub.rs:18:8
[INFO] [stdout]    |
[INFO] [stdout] 18 |     fn get_default_props() -> GenericRootViewProps {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct is never constructed: `GenericRootProps`
[INFO] [stdout]   --> src/reconciler/mod.rs:31:8
[INFO] [stdout]    |
[INFO] [stdout] 31 | struct GenericRootProps;
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `queued_state_updates`
[INFO] [stdout]   --> src/reconciler/mod.rs:34:5
[INFO] [stdout]    |
[INFO] [stdout] 34 |     queued_state_updates: Mutex<Vec<i32>>,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/reconciler/mod.rs:117:13
[INFO] [stdout]     |
[INFO] [stdout] 117 |             layout_store.set_style(layout, style);
[INFO] [stdout]     |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 27 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 4.67s
[INFO] running `Command { std: "docker" "inspect" "87b463575b0d0990fa0c115d110a6055fc912a63b1eb9ea52c2db459500f1623", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "87b463575b0d0990fa0c115d110a6055fc912a63b1eb9ea52c2db459500f1623", kill_on_drop: false }`
[INFO] [stdout] 87b463575b0d0990fa0c115d110a6055fc912a63b1eb9ea52c2db459500f1623
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-94/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-94/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=warn" "-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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-09-08" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] e373816d0de8cd8064487d8065cf35db8dfd9a81f7a9af192df7b33cd2ef3b7e
[INFO] running `Command { std: "docker" "start" "-a" "e373816d0de8cd8064487d8065cf35db8dfd9a81f7a9af192df7b33cd2ef3b7e", kill_on_drop: false }`
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]  --> src/error.rs:7:22
[INFO] [stderr]   |
[INFO] [stderr] 7 | pub type Error = Box<std::error::Error>;
[INFO] [stderr]   |                      ^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn std::error::Error`
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stderr]   = warning: this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2021!
[INFO] [stderr]   = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/rsx/virtual_node.rs:25:59
[INFO] [stderr]    |
[INFO] [stderr] 25 |     pub create_component_fn: fn(key: ComponentKey) -> Box<Component>,
[INFO] [stderr]    |                                                           ^^^^^^^^^ help: use `dyn`: `dyn Component`
[INFO] [stderr]    |
[INFO] [stderr]    = warning: this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2021!
[INFO] [stderr]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/rsx/virtual_node.rs:30:20
[INFO] [stderr]    |
[INFO] [stderr] 30 |     pub props: Box<Any>,
[INFO] [stderr]    |                    ^^^ help: use `dyn`: `dyn Any`
[INFO] [stderr]    |
[INFO] [stderr]    = warning: this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2021!
[INFO] [stderr]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/rsx/mod.rs:34:49
[INFO] [stderr]    |
[INFO] [stderr] 34 |         create_fn: fn(key: ComponentKey) -> Box<Component>,
[INFO] [stderr]    |                                                 ^^^^^^^^^ help: use `dyn`: `dyn Component`
[INFO] [stderr]    |
[INFO] [stderr]    = warning: this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2021!
[INFO] [stderr]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/traits.rs:76:45
[INFO] [stderr]    |
[INFO] [stderr] 76 |     fn set_props(&mut self, new_props: &mut Any);
[INFO] [stderr]    |                                             ^^^ help: use `dyn`: `dyn Any`
[INFO] [stderr]    |
[INFO] [stderr]    = warning: this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2021!
[INFO] [stderr]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/reconciler/instance.rs:12:31
[INFO] [stderr]    |
[INFO] [stderr] 12 |     pub(crate) component: Box<Component + 'static>,
[INFO] [stderr]    |                               ^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Component + 'static`
[INFO] [stderr]    |
[INFO] [stderr]    = warning: this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2021!
[INFO] [stderr]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/reconciler/generic_root_view_stub.rs:24:37
[INFO] [stderr]    |
[INFO] [stderr] 24 |     fn set_props(&mut self, _: &mut Any) {}    
[INFO] [stderr]    |                                     ^^^ help: use `dyn`: `dyn Any`
[INFO] [stderr]    |
[INFO] [stderr]    = warning: this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2021!
[INFO] [stderr]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/reconciler/mod.rs:56:109
[INFO] [stderr]    |
[INFO] [stderr] 56 |     pub fn register_root_component<C: Component + 'static>(&self, component: C) -> Result<ComponentKey, Box<Error>> {
[INFO] [stderr]    |                                                                                                             ^^^^^ help: use `dyn`: `dyn Error`
[INFO] [stderr]    |
[INFO] [stderr]    = warning: this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2021!
[INFO] [stderr]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/reconciler/mod.rs:88:25
[INFO] [stderr]    |
[INFO] [stderr] 88 |     ) -> Result<(), Box<Error>> {
[INFO] [stderr]    |                         ^^^^^ help: use `dyn`: `dyn Error`
[INFO] [stderr]    |
[INFO] [stderr]    = warning: this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2021!
[INFO] [stderr]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/reconciler/mod.rs:141:21
[INFO] [stderr]     |
[INFO] [stderr] 141 | ) -> Result<(), Box<Error>> {
[INFO] [stderr]     |                     ^^^^^ help: use `dyn`: `dyn Error`
[INFO] [stderr]     |
[INFO] [stderr]     = warning: this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2021!
[INFO] [stderr]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/reconciler/mod.rs:227:31
[INFO] [stderr]     |
[INFO] [stderr] 227 | ) -> Result<ComponentKey, Box<Error>> {
[INFO] [stderr]     |                               ^^^^^ help: use `dyn`: `dyn Error`
[INFO] [stderr]     |
[INFO] [stderr]     = warning: this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2021!
[INFO] [stderr]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/reconciler/mod.rs:301:34
[INFO] [stderr]     |
[INFO] [stderr] 301 | ) -> Result<Vec<LayoutNode>, Box<Error>> {
[INFO] [stderr]     |                                  ^^^^^ help: use `dyn`: `dyn Error`
[INFO] [stderr]     |
[INFO] [stderr]     = warning: this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2021!
[INFO] [stderr]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/reconciler/mod.rs:340:21
[INFO] [stderr]     |
[INFO] [stderr] 340 | ) -> Result<(), Box<Error>> {
[INFO] [stderr]     |                     ^^^^^ help: use `dyn`: `dyn Error`
[INFO] [stderr]     |
[INFO] [stderr]     = warning: this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2021!
[INFO] [stderr]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/reconciler/mod.rs:367:21
[INFO] [stderr]     |
[INFO] [stderr] 367 | ) -> Result<(), Box<Error>> {
[INFO] [stderr]     |                     ^^^^^ help: use `dyn`: `dyn Error`
[INFO] [stderr]     |
[INFO] [stderr]     = warning: this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2021!
[INFO] [stderr]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `children`
[INFO] [stderr]    --> src/traits.rs:172:22
[INFO] [stderr]     |
[INFO] [stderr] 172 |     fn render(&self, children: Vec<RSX>) -> Result<RSX, Error> { Ok(RSX::None) }
[INFO] [stderr]     |                      ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_children`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/reconciler/mod.rs:109:17
[INFO] [stderr]     |
[INFO] [stderr] 109 |             let mut root_instance = component_store.get_mut(key)?;
[INFO] [stderr]     |                 ----^^^^^^^^^^^^^
[INFO] [stderr]     |                 |
[INFO] [stderr]     |                 help: remove this `mut`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_mut)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/reconciler/mod.rs:173:29
[INFO] [stderr]     |
[INFO] [stderr] 173 |     if let RSX::VirtualNode(mut child) = new_tree {
[INFO] [stderr]     |                             ----^^^^^
[INFO] [stderr]     |                             |
[INFO] [stderr]     |                             help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `set_children`
[INFO] [stderr]    --> src/reconciler/storage.rs:114:12
[INFO] [stderr]     |
[INFO] [stderr] 114 |     pub fn set_children(&mut self, key: ComponentKey, children: Vec<ComponentKey>) -> Result<(), Error> {
[INFO] [stderr]     |            ^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `remove_child`
[INFO] [stderr]    --> src/reconciler/storage.rs:131:12
[INFO] [stderr]     |
[INFO] [stderr] 131 |     pub fn remove_child(&mut self, key: ComponentKey, child: ComponentKey) -> Result<ComponentKey, Error> {
[INFO] [stderr]     |            ^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `remove_child_at_index`
[INFO] [stderr]    --> src/reconciler/storage.rs:138:12
[INFO] [stderr]     |
[INFO] [stderr] 138 |     pub fn remove_child_at_index(&mut self, key: ComponentKey, index: usize) -> Result<ComponentKey, Error> {
[INFO] [stderr]     |            ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `replace_child_at_index`
[INFO] [stderr]    --> src/reconciler/storage.rs:144:12
[INFO] [stderr]     |
[INFO] [stderr] 144 |     pub fn replace_child_at_index(&mut self, key: ComponentKey, index: usize, child: ComponentKey) -> Result<ComponentKey, Error> {
[INFO] [stderr]     |            ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `child_count`
[INFO] [stderr]    --> src/reconciler/storage.rs:155:12
[INFO] [stderr]     |
[INFO] [stderr] 155 |     pub fn child_count(&self, key: ComponentKey) -> Result<usize, Error> {
[INFO] [stderr]     |            ^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `InvalidKey`
[INFO] [stderr]  --> src/reconciler/error.rs:9:5
[INFO] [stderr]   |
[INFO] [stderr] 9 |     InvalidKey,
[INFO] [stderr]   |     ^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `get_default_props`
[INFO] [stderr]   --> src/reconciler/generic_root_view_stub.rs:18:8
[INFO] [stderr]    |
[INFO] [stderr] 18 |     fn get_default_props() -> GenericRootViewProps {
[INFO] [stderr]    |        ^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: struct is never constructed: `GenericRootProps`
[INFO] [stderr]   --> src/reconciler/mod.rs:31:8
[INFO] [stderr]    |
[INFO] [stderr] 31 | struct GenericRootProps;
[INFO] [stderr]    |        ^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `queued_state_updates`
[INFO] [stderr]   --> src/reconciler/mod.rs:34:5
[INFO] [stderr]    |
[INFO] [stderr] 34 |     queued_state_updates: Mutex<Vec<i32>>,
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused `Result` that must be used
[INFO] [stderr]    --> src/reconciler/mod.rs:117:13
[INFO] [stderr]     |
[INFO] [stderr] 117 |             layout_store.set_style(layout, style);
[INFO] [stderr]     |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_must_use)]` on by default
[INFO] [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] 
[INFO] [stderr] warning: `alchemy-lifecycle` (lib) generated 27 warnings
[INFO] [stderr] warning: `alchemy-lifecycle` (lib test) generated 27 warnings (27 duplicates)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.04s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/alchemy_lifecycle-35f1085d43649802)
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests alchemy-lifecycle
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "e373816d0de8cd8064487d8065cf35db8dfd9a81f7a9af192df7b33cd2ef3b7e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e373816d0de8cd8064487d8065cf35db8dfd9a81f7a9af192df7b33cd2ef3b7e", kill_on_drop: false }`
[INFO] [stdout] e373816d0de8cd8064487d8065cf35db8dfd9a81f7a9af192df7b33cd2ef3b7e