[INFO] cloning repository https://github.com/jarrett/rust-patterns
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/jarrett/rust-patterns" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjarrett%2Frust-patterns", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjarrett%2Frust-patterns'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 123d17df7e51a0bce5d23fbc76c85e43cdae94bf
[INFO] building jarrett/rust-patterns against master#11663cd3bfefef7d34e8f0892c250bf698049392+rustflags=-Dtail-expr-drop-order for pr-134523
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjarrett%2Frust-patterns" "/workspace/builds/worker-2-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/jarrett/rust-patterns on toolchain 11663cd3bfefef7d34e8f0892c250bf698049392
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+11663cd3bfefef7d34e8f0892c250bf698049392" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/jarrett/rust-patterns
[INFO] finished tweaking git repo https://github.com/jarrett/rust-patterns
[INFO] tweaked toml for git repo https://github.com/jarrett/rust-patterns written to /workspace/builds/worker-2-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/jarrett/rust-patterns already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+11663cd3bfefef7d34e8f0892c250bf698049392" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr] warning: no edition set: defaulting to the 2015 edition while the latest is 2024
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded uuid v0.6.2
[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:f3a9d4ad9d972b27faf3965f35b62e55ba32bbce8f20bc8fe909558a86702fde" "/opt/rustwide/cargo-home/bin/cargo" "+11663cd3bfefef7d34e8f0892c250bf698049392" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] ab098c262f3a9f87a86bf79fdd5b324f3902f679f994d98cb9d7a19e2d5da570
[INFO] running `Command { std: "docker" "start" "-a" "ab098c262f3a9f87a86bf79fdd5b324f3902f679f994d98cb9d7a19e2d5da570", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "ab098c262f3a9f87a86bf79fdd5b324f3902f679f994d98cb9d7a19e2d5da570", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ab098c262f3a9f87a86bf79fdd5b324f3902f679f994d98cb9d7a19e2d5da570", kill_on_drop: false }`
[INFO] [stdout] ab098c262f3a9f87a86bf79fdd5b324f3902f679f994d98cb9d7a19e2d5da570
[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 -Dtail-expr-drop-order" "-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:f3a9d4ad9d972b27faf3965f35b62e55ba32bbce8f20bc8fe909558a86702fde" "/opt/rustwide/cargo-home/bin/cargo" "+11663cd3bfefef7d34e8f0892c250bf698049392" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 3c62588d4393505c777ec290bce0897a937e9c9e3471771df9f5920e138eb824
[INFO] running `Command { std: "docker" "start" "-a" "3c62588d4393505c777ec290bce0897a937e9c9e3471771df9f5920e138eb824", kill_on_drop: false }`
[INFO] [stderr] warning: no edition set: defaulting to the 2015 edition while the latest is 2024
[INFO] [stderr]    Compiling libc v0.2.39
[INFO] [stderr]    Compiling cfg-if v0.1.2
[INFO] [stderr]    Compiling rand v0.4.2
[INFO] [stderr]    Compiling uuid v0.6.2
[INFO] [stderr]    Compiling rust-patterns v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]  --> src/any.rs:8:24
[INFO] [stdout]   |
[INFO] [stdout] 8 |   fn as_any(&self) -> &Any;
[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 a dyn-compatible trait, use `dyn`
[INFO] [stdout]   |
[INFO] [stdout] 8 |   fn as_any(&self) -> &dyn Any;
[INFO] [stdout]   |                        +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/events/pointer.rs:11:14
[INFO] [stdout]    |
[INFO] [stdout] 11 |   event: Box<Event>,
[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 a dyn-compatible trait, use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 11 |   event: Box<dyn Event>,
[INFO] [stdout]    |              +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/events/uuid.rs:26:14
[INFO] [stdout]    |
[INFO] [stdout] 26 |   event: Box<Event>,
[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 a dyn-compatible trait, use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 26 |   event: Box<dyn Event>,
[INFO] [stdout]    |              +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/events/mod.rs:16:18
[INFO] [stdout]    |
[INFO] [stdout] 16 |   queue: Vec<Box<Event>>
[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 a dyn-compatible trait, use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 16 |   queue: Vec<Box<dyn Event>>
[INFO] [stdout]    |                  +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/any.rs:18:24
[INFO] [stdout]    |
[INFO] [stdout] 18 |   fn as_any(&self) -> &Any { self }
[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 a dyn-compatible trait, use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 18 |   fn as_any(&self) -> &dyn Any { self }
[INFO] [stdout]    |                        +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]  --> src/events/mod.rs:8:24
[INFO] [stdout]   |
[INFO] [stdout] 8 |   fn as_any(&self) -> &Any;
[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 a dyn-compatible trait, use `dyn`
[INFO] [stdout]   |
[INFO] [stdout] 8 |   fn as_any(&self) -> &dyn Any;
[INFO] [stdout]   |                        +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/events/mod.rs:25:24
[INFO] [stdout]    |
[INFO] [stdout] 25 |   fn as_any(&self) -> &Any { self }
[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 a dyn-compatible trait, use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 25 |   fn as_any(&self) -> &dyn Any { self }
[INFO] [stdout]    |                        +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/events/uuid.rs:52:44
[INFO] [stdout]    |
[INFO] [stdout] 52 |     &self, registry: &'a HashMap<Uuid, Box<Any>>
[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 a dyn-compatible trait, use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 52 |     &self, registry: &'a HashMap<Uuid, Box<dyn Any>>
[INFO] [stdout]    |                                            +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/events/pointer.rs:30:44
[INFO] [stdout]    |
[INFO] [stdout] 30 |     events.queue.drain(..).map(|event: Box<Event>|
[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 a dyn-compatible trait, use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 30 |     events.queue.drain(..).map(|event: Box<dyn Event>|
[INFO] [stdout]    |                                            +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/events/uuid.rs:67:44
[INFO] [stdout]    |
[INFO] [stdout] 67 |     events.queue.drain(..).map(|event: Box<Event>|
[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 a dyn-compatible trait, use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 67 |     events.queue.drain(..).map(|event: Box<dyn Event>|
[INFO] [stdout]    |                                            +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait `AsAny` is never used
[INFO] [stdout]  --> src/any.rs:7:7
[INFO] [stdout]   |
[INFO] [stdout] 7 | trait AsAny : Any {
[INFO] [stdout]   |       ^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait `Foo` is never used
[INFO] [stdout]   --> src/any.rs:11:7
[INFO] [stdout]    |
[INFO] [stdout] 11 | trait Foo : AsAny {}
[INFO] [stdout]    |       ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Bar` is never constructed
[INFO] [stdout]   --> src/any.rs:13:8
[INFO] [stdout]    |
[INFO] [stdout] 13 | struct Bar;
[INFO] [stdout]    |        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `World` is never constructed
[INFO] [stdout]  --> src/mutability.rs:5:8
[INFO] [stdout]   |
[INFO] [stdout] 5 | struct World {
[INFO] [stdout]   |        ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Person` is never constructed
[INFO] [stdout]   --> src/mutability.rs:25:8
[INFO] [stdout]    |
[INFO] [stdout] 25 | struct Person {
[INFO] [stdout]    |        ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `attack`, `attack_sibling`, `health`, `new`, `receive_attack`, and `set_sibling` are never used
[INFO] [stdout]   --> src/mutability.rs:33:10
[INFO] [stdout]    |
[INFO] [stdout] 32 | impl Person {
[INFO] [stdout]    | ----------- associated items in this implementation
[INFO] [stdout] 33 |   pub fn attack(&self, other: &mut Person) {
[INFO] [stdout]    |          ^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 37 |   pub fn attack_sibling(&self) -> Result<(), ()> {
[INFO] [stdout]    |          ^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 46 |   pub fn health(&self) -> u8 { self.health }
[INFO] [stdout]    |          ^^^^^^
[INFO] [stdout] 47 |
[INFO] [stdout] 48 |   pub fn new(armor: u8, strength: u8) -> Person {
[INFO] [stdout]    |          ^^^
[INFO] [stdout] ...
[INFO] [stdout] 52 |   pub fn receive_attack(&mut self, strength: u8) {
[INFO] [stdout]    |          ^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 56 |   pub fn set_sibling(&mut self, sibling: &Rc<RefCell<Person>>) {
[INFO] [stdout]    |          ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait `AsAny` is never used
[INFO] [stdout]  --> src/events/mod.rs:7:7
[INFO] [stdout]   |
[INFO] [stdout] 7 | trait AsAny : Any {
[INFO] [stdout]   |       ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait `Event` is never used
[INFO] [stdout]   --> src/events/mod.rs:11:7
[INFO] [stdout]    |
[INFO] [stdout] 11 | trait Event : Debug + AsAny {}
[INFO] [stdout]    |       ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Events` is never constructed
[INFO] [stdout]   --> src/events/mod.rs:15:8
[INFO] [stdout]    |
[INFO] [stdout] 15 | struct Events {
[INFO] [stdout]    |        ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `FooEvent` is never constructed
[INFO] [stdout]   --> src/events/mod.rs:20:8
[INFO] [stdout]    |
[INFO] [stdout] 20 | struct FooEvent {
[INFO] [stdout]    |        ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `emit` and `new` are never used
[INFO] [stdout]   --> src/events/mod.rs:29:6
[INFO] [stdout]    |
[INFO] [stdout] 28 | impl Events {
[INFO] [stdout]    | ----------- associated items in this implementation
[INFO] [stdout] 29 |   fn emit<U: 'static + Event>(&mut self, event: U) {
[INFO] [stdout]    |      ^^^^
[INFO] [stdout] ...
[INFO] [stdout] 33 |   fn new() -> Events {
[INFO] [stdout]    |      ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `new` is never used
[INFO] [stdout]   --> src/events/mod.rs:41:6
[INFO] [stdout]    |
[INFO] [stdout] 40 | impl FooEvent {
[INFO] [stdout]    | ------------- associated function in this implementation
[INFO] [stdout] 41 |   fn new(message: &str) -> FooEvent {
[INFO] [stdout]    |      ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: type alias `EmitterRef` is never used
[INFO] [stdout]  --> src/events/pointer.rs:6:6
[INFO] [stdout]   |
[INFO] [stdout] 6 | type EmitterRef<T> = Rc<RefCell<T>>;
[INFO] [stdout]   |      ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `PackagedEvent` is never constructed
[INFO] [stdout]   --> src/events/pointer.rs:10:8
[INFO] [stdout]    |
[INFO] [stdout] 10 | struct PackagedEvent<T: 'static> {
[INFO] [stdout]    |        ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Bar` is never constructed
[INFO] [stdout]   --> src/events/pointer.rs:17:8
[INFO] [stdout]    |
[INFO] [stdout] 17 | struct Bar {
[INFO] [stdout]    |        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `cast` and `package` are never used
[INFO] [stdout]   --> src/events/pointer.rs:22:6
[INFO] [stdout]    |
[INFO] [stdout] 21 | impl<T> PackagedEvent<T> {
[INFO] [stdout]    | ------------------------ associated items in this implementation
[INFO] [stdout] 22 |   fn cast<U, V, F>(&self, f: F) -> Option<V>
[INFO] [stdout]    |      ^^^^
[INFO] [stdout] ...
[INFO] [stdout] 29 |   fn package(events: &mut Events, emitter: &EmitterRef<T>) -> Vec<PackagedEvent<T>> {
[INFO] [stdout]    |      ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `EntityRef` is never constructed
[INFO] [stdout]   --> src/events/uuid.rs:18:8
[INFO] [stdout]    |
[INFO] [stdout] 18 | struct EntityRef<T: 'static> {
[INFO] [stdout]    |        ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `PackagedEvent` is never constructed
[INFO] [stdout]   --> src/events/uuid.rs:25:8
[INFO] [stdout]    |
[INFO] [stdout] 25 | struct PackagedEvent<T: 'static> {
[INFO] [stdout]    |        ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Bar` is never constructed
[INFO] [stdout]   --> src/events/uuid.rs:32:8
[INFO] [stdout]    |
[INFO] [stdout] 32 | struct Bar {
[INFO] [stdout]    |        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `clone`, `new`, and `resolve` are never used
[INFO] [stdout]   --> src/events/uuid.rs:41:6
[INFO] [stdout]    |
[INFO] [stdout] 37 | impl<T> EntityRef<T> {
[INFO] [stdout]    | -------------------- associated items in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 41 |   fn clone(&self) -> Self {
[INFO] [stdout]    |      ^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 45 |   fn new(uuid: Uuid) -> Self {
[INFO] [stdout]    |      ^^^
[INFO] [stdout] ...
[INFO] [stdout] 51 |   fn resolve<'a>(
[INFO] [stdout]    |      ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `cast` and `package` are never used
[INFO] [stdout]   --> src/events/uuid.rs:59:6
[INFO] [stdout]    |
[INFO] [stdout] 58 | impl<T> PackagedEvent<T> {
[INFO] [stdout]    | ------------------------ associated items in this implementation
[INFO] [stdout] 59 |   fn cast<U, V, F>(&self, f: F) -> Option<V>
[INFO] [stdout]    |      ^^^^
[INFO] [stdout] ...
[INFO] [stdout] 66 |   fn package(events: &mut Events, emitter: &EntityRef<T>) -> Vec<PackagedEvent<T>> {
[INFO] [stdout]    |      ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `new` is never used
[INFO] [stdout]   --> src/events/uuid.rs:74:6
[INFO] [stdout]    |
[INFO] [stdout] 73 | impl Bar {
[INFO] [stdout]    | -------- associated function in this implementation
[INFO] [stdout] 74 |   fn new() -> Bar {
[INFO] [stdout]    |      ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Animal` is never constructed
[INFO] [stdout]  --> src/lifetimes.rs:1:8
[INFO] [stdout]   |
[INFO] [stdout] 1 | struct Animal {
[INFO] [stdout]   |        ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `borrow_name` is never used
[INFO] [stdout]  --> src/lifetimes.rs:6:6
[INFO] [stdout]   |
[INFO] [stdout] 5 | impl Animal {
[INFO] [stdout]   | ----------- method in this implementation
[INFO] [stdout] 6 |   fn borrow_name<'a>(&'a self) -> &'a String {
[INFO] [stdout]   |      ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 2.20s
[INFO] running `Command { std: "docker" "inspect" "3c62588d4393505c777ec290bce0897a937e9c9e3471771df9f5920e138eb824", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3c62588d4393505c777ec290bce0897a937e9c9e3471771df9f5920e138eb824", kill_on_drop: false }`
[INFO] [stdout] 3c62588d4393505c777ec290bce0897a937e9c9e3471771df9f5920e138eb824
[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 -Dtail-expr-drop-order" "-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:f3a9d4ad9d972b27faf3965f35b62e55ba32bbce8f20bc8fe909558a86702fde" "/opt/rustwide/cargo-home/bin/cargo" "+11663cd3bfefef7d34e8f0892c250bf698049392" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 475d7193ea6fd14a68256443d399abb988880e070efc081ca1faa339cceb3719
[INFO] running `Command { std: "docker" "start" "-a" "475d7193ea6fd14a68256443d399abb988880e070efc081ca1faa339cceb3719", kill_on_drop: false }`
[INFO] [stderr] warning: no edition set: defaulting to the 2015 edition while the latest is 2024
[INFO] [stderr]    Compiling rust-patterns v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]  --> src/any.rs:8:24
[INFO] [stdout]   |
[INFO] [stdout] 8 |   fn as_any(&self) -> &Any;
[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 a dyn-compatible trait, use `dyn`
[INFO] [stdout]   |
[INFO] [stdout] 8 |   fn as_any(&self) -> &dyn Any;
[INFO] [stdout]   |                        +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/events/pointer.rs:11:14
[INFO] [stdout]    |
[INFO] [stdout] 11 |   event: Box<Event>,
[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 a dyn-compatible trait, use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 11 |   event: Box<dyn Event>,
[INFO] [stdout]    |              +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/events/uuid.rs:26:14
[INFO] [stdout]    |
[INFO] [stdout] 26 |   event: Box<Event>,
[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 a dyn-compatible trait, use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 26 |   event: Box<dyn Event>,
[INFO] [stdout]    |              +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/events/mod.rs:16:18
[INFO] [stdout]    |
[INFO] [stdout] 16 |   queue: Vec<Box<Event>>
[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 a dyn-compatible trait, use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 16 |   queue: Vec<Box<dyn Event>>
[INFO] [stdout]    |                  +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/any.rs:18:24
[INFO] [stdout]    |
[INFO] [stdout] 18 |   fn as_any(&self) -> &Any { self }
[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 a dyn-compatible trait, use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 18 |   fn as_any(&self) -> &dyn Any { self }
[INFO] [stdout]    |                        +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]  --> src/events/mod.rs:8:24
[INFO] [stdout]   |
[INFO] [stdout] 8 |   fn as_any(&self) -> &Any;
[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 a dyn-compatible trait, use `dyn`
[INFO] [stdout]   |
[INFO] [stdout] 8 |   fn as_any(&self) -> &dyn Any;
[INFO] [stdout]   |                        +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/events/mod.rs:25:24
[INFO] [stdout]    |
[INFO] [stdout] 25 |   fn as_any(&self) -> &Any { self }
[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 a dyn-compatible trait, use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 25 |   fn as_any(&self) -> &dyn Any { self }
[INFO] [stdout]    |                        +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/events/uuid.rs:52:44
[INFO] [stdout]    |
[INFO] [stdout] 52 |     &self, registry: &'a HashMap<Uuid, Box<Any>>
[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 a dyn-compatible trait, use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 52 |     &self, registry: &'a HashMap<Uuid, Box<dyn Any>>
[INFO] [stdout]    |                                            +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/any.rs:36:20
[INFO] [stdout]    |
[INFO] [stdout] 36 |       let any: Box<Any> = Box::new(bar);
[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 a dyn-compatible trait, use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 36 |       let any: Box<dyn Any> = Box::new(bar);
[INFO] [stdout]    |                    +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/any.rs:42:17
[INFO] [stdout]    |
[INFO] [stdout] 42 |       let foo: &Foo = &bar as &Foo;
[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 a dyn-compatible trait, use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 42 |       let foo: &dyn Foo = &bar as &Foo;
[INFO] [stdout]    |                 +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/any.rs:43:17
[INFO] [stdout]    |
[INFO] [stdout] 43 |       let any: &Any = foo.as_any();
[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 a dyn-compatible trait, use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 43 |       let any: &dyn Any = foo.as_any();
[INFO] [stdout]    |                 +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/any.rs:49:20
[INFO] [stdout]    |
[INFO] [stdout] 49 |       let foo: Box<Foo> = Box::new(bar);
[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 a dyn-compatible trait, use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 49 |       let foo: Box<dyn Foo> = Box::new(bar);
[INFO] [stdout]    |                    +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/any.rs:50:17
[INFO] [stdout]    |
[INFO] [stdout] 50 |       let any: &Any = foo.as_any();
[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 a dyn-compatible trait, use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 50 |       let any: &dyn Any = foo.as_any();
[INFO] [stdout]    |                 +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/any.rs:30:26
[INFO] [stdout]    |
[INFO] [stdout] 30 |       let any = &bar as &Any;
[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 a dyn-compatible trait, use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 30 |       let any = &bar as &dyn Any;
[INFO] [stdout]    |                          +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/any.rs:42:32
[INFO] [stdout]    |
[INFO] [stdout] 42 |       let foo: &Foo = &bar as &Foo;
[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 a dyn-compatible trait, use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 42 |       let foo: &Foo = &bar as &dyn Foo;
[INFO] [stdout]    |                                +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/events/pointer.rs:30:44
[INFO] [stdout]    |
[INFO] [stdout] 30 |     events.queue.drain(..).map(|event: Box<Event>|
[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 a dyn-compatible trait, use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 30 |     events.queue.drain(..).map(|event: Box<dyn Event>|
[INFO] [stdout]    |                                            +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/events/uuid.rs:67:44
[INFO] [stdout]    |
[INFO] [stdout] 67 |     events.queue.drain(..).map(|event: Box<Event>|
[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 a dyn-compatible trait, use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 67 |     events.queue.drain(..).map(|event: Box<dyn Event>|
[INFO] [stdout]    |                                            +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/events/uuid.rs:86:41
[INFO] [stdout]    |
[INFO] [stdout] 86 |     let mut registry: HashMap<Uuid, Box<Any>> = HashMap::new();
[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 a dyn-compatible trait, use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 86 |     let mut registry: HashMap<Uuid, Box<dyn Any>> = HashMap::new();
[INFO] [stdout]    |                                         +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.67s
[INFO] running `Command { std: "docker" "inspect" "475d7193ea6fd14a68256443d399abb988880e070efc081ca1faa339cceb3719", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "475d7193ea6fd14a68256443d399abb988880e070efc081ca1faa339cceb3719", kill_on_drop: false }`
[INFO] [stdout] 475d7193ea6fd14a68256443d399abb988880e070efc081ca1faa339cceb3719