[INFO] fetching crate game_kernel_ecs 0.1.0...
[INFO] checking game_kernel_ecs-0.1.0 against master#57f772f25c5ce2bd870d6f8c3ab318eaee5a3326 for pr-133502-22
[INFO] extracting crate game_kernel_ecs 0.1.0 into /workspace/builds/worker-3-tc1/source
[INFO] started tweaking crates.io crate game_kernel_ecs 0.1.0
[INFO] finished tweaking crates.io crate game_kernel_ecs 0.1.0
[INFO] tweaked toml for crates.io crate game_kernel_ecs 0.1.0 written to /workspace/builds/worker-3-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate game_kernel_ecs 0.1.0 on toolchain 57f772f25c5ce2bd870d6f8c3ab318eaee5a3326
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+57f772f25c5ce2bd870d6f8c3ab318eaee5a3326" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+57f772f25c5ce2bd870d6f8c3ab318eaee5a3326" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 63 packages to latest compatible versions
[INFO] [stderr]       Adding crossbeam-utils v0.5.0 (available: v0.8.21)
[INFO] [stderr]       Adding downcast-rs v1.2.1 (available: v2.0.2)
[INFO] [stderr]       Adding evmap v9.0.1 (available: v11.0.0)
[INFO] [stderr]       Adding parking_lot v0.6.4 (available: v0.12.5)
[INFO] [stderr]       Adding paste v0.1.18 (available: v1.0.15)
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+57f772f25c5ce2bd870d6f8c3ab318eaee5a3326" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded game_kernel_utils v0.1.0
[INFO] [stderr]   Downloaded owning_ref v0.4.1
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[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+57f772f25c5ce2bd870d6f8c3ab318eaee5a3326" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 428b9543c475e1993eab7b1354575221bc0084b06d4f58317bad8fbed6a3ade1
[INFO] running `Command { std: "docker" "start" "-a" "428b9543c475e1993eab7b1354575221bc0084b06d4f58317bad8fbed6a3ade1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "428b9543c475e1993eab7b1354575221bc0084b06d4f58317bad8fbed6a3ade1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "428b9543c475e1993eab7b1354575221bc0084b06d4f58317bad8fbed6a3ade1", kill_on_drop: false }`
[INFO] [stdout] 428b9543c475e1993eab7b1354575221bc0084b06d4f58317bad8fbed6a3ade1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+57f772f25c5ce2bd870d6f8c3ab318eaee5a3326" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
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[INFO] running `Command { std: "docker" "start" "-a" "0069f9d5916c225fee7ecf96472e32d2538e80ce61ddf03d565b39d4fc2afc26", kill_on_drop: false }`
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[INFO] [stderr]     Checking game_kernel_utils v0.1.0
[INFO] [stderr]     Checking game_kernel_settings v0.1.0
[INFO] [stderr]     Checking game_kernel_ecs v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused `#[macro_use]` import
[INFO] [stdout]  --> src/lib.rs:4:1
[INFO] [stdout]   |
[INFO] [stdout] 4 | #[macro_use]
[INFO] [stdout]   | ^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `evmap::shallow_copy::ShallowCopy`
[INFO] [stdout]  --> src/ecs/component.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | use evmap::shallow_copy::ShallowCopy;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `evmap::ShallowCopy`
[INFO] [stdout]  --> src/ecs/entity.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | use evmap::ShallowCopy;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `parking_lot::Mutex`
[INFO] [stdout]  --> src/ecs/entity.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 4 | use parking_lot::Mutex;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::collections::HashMap`
[INFO] [stdout]  --> src/ecs/entity.rs:5:5
[INFO] [stdout]   |
[INFO] [stdout] 5 | use std::collections::HashMap;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::collections::HashSet`
[INFO] [stdout]  --> src/ecs/entity.rs:6:5
[INFO] [stdout]   |
[INFO] [stdout] 6 | use std::collections::HashSet;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::ops::Deref`
[INFO] [stdout]  --> src/ecs/entity.rs:7:5
[INFO] [stdout]   |
[INFO] [stdout] 7 | use std::ops::Deref;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `super::component`
[INFO] [stdout]  --> src/ecs/entity.rs:9:5
[INFO] [stdout]   |
[INFO] [stdout] 9 | use super::component;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::any::Any`
[INFO] [stdout]  --> src/ecs/system.rs:8:5
[INFO] [stdout]   |
[INFO] [stdout] 8 | use std::any::Any;
[INFO] [stdout]   |     ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `#[macro_use]` import
[INFO] [stdout]  --> src/lib.rs:4:1
[INFO] [stdout]   |
[INFO] [stdout] 4 | #[macro_use]
[INFO] [stdout]   | ^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `evmap::shallow_copy::ShallowCopy`
[INFO] [stdout]  --> src/ecs/component.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | use evmap::shallow_copy::ShallowCopy;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `evmap::ShallowCopy`
[INFO] [stdout]  --> src/ecs/entity.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | use evmap::ShallowCopy;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `parking_lot::Mutex`
[INFO] [stdout]  --> src/ecs/entity.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 4 | use parking_lot::Mutex;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::collections::HashMap`
[INFO] [stdout]  --> src/ecs/entity.rs:5:5
[INFO] [stdout]   |
[INFO] [stdout] 5 | use std::collections::HashMap;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::collections::HashSet`
[INFO] [stdout]  --> src/ecs/entity.rs:6:5
[INFO] [stdout]   |
[INFO] [stdout] 6 | use std::collections::HashSet;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::ops::Deref`
[INFO] [stdout]  --> src/ecs/entity.rs:7:5
[INFO] [stdout]   |
[INFO] [stdout] 7 | use std::ops::Deref;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `super::component`
[INFO] [stdout]  --> src/ecs/entity.rs:9:5
[INFO] [stdout]   |
[INFO] [stdout] 9 | use super::component;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::any::Any`
[INFO] [stdout]  --> src/ecs/system.rs:8:5
[INFO] [stdout]   |
[INFO] [stdout] 8 | use std::any::Any;
[INFO] [stdout]   |     ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `Ref`
[INFO] [stdout]   --> src/ecs/system.rs:10:17
[INFO] [stdout]    |
[INFO] [stdout] 10 | use std::cell::{Ref, RefCell};
[INFO] [stdout]    |                 ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::rc::Rc`
[INFO] [stdout]  --> src/ecs/views/mod.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 4 | use std::rc::Rc;
[INFO] [stdout]   |     ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `AutoIndexMap`
[INFO] [stdout]   --> src/ecs/mod.rs:12:36
[INFO] [stdout]    |
[INFO] [stdout] 12 | use game_kernel_utils::{hierarchy, AutoIndexMap, KeyType};
[INFO] [stdout]    |                                    ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `Deref`
[INFO] [stdout]   --> src/ecs/mod.rs:18:16
[INFO] [stdout]    |
[INFO] [stdout] 18 | use std::ops::{Deref, DerefMut};
[INFO] [stdout]    |                ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::rc::Rc`
[INFO] [stdout]   --> src/ecs/mod.rs:19:5
[INFO] [stdout]    |
[INFO] [stdout] 19 | use std::rc::Rc;
[INFO] [stdout]    |     ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `evmap::*`
[INFO] [stdout]   --> src/ecs/mod.rs:22:5
[INFO] [stdout]    |
[INFO] [stdout] 22 | use evmap::*;
[INFO] [stdout]    |     ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `hibitset`
[INFO] [stdout]   --> src/ecs/mod.rs:23:5
[INFO] [stdout]    |
[INFO] [stdout] 23 | use hibitset;
[INFO] [stdout]    |     ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `Ref`
[INFO] [stdout]   --> src/ecs/system.rs:10:17
[INFO] [stdout]    |
[INFO] [stdout] 10 | use std::cell::{Ref, RefCell};
[INFO] [stdout]    |                 ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::rc::Rc`
[INFO] [stdout]  --> src/ecs/views/mod.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 4 | use std::rc::Rc;
[INFO] [stdout]   |     ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `AutoIndexMap`
[INFO] [stdout]   --> src/ecs/mod.rs:12:36
[INFO] [stdout]    |
[INFO] [stdout] 12 | use game_kernel_utils::{hierarchy, AutoIndexMap, KeyType};
[INFO] [stdout]    |                                    ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `Deref`
[INFO] [stdout]   --> src/ecs/mod.rs:18:16
[INFO] [stdout]    |
[INFO] [stdout] 18 | use std::ops::{Deref, DerefMut};
[INFO] [stdout]    |                ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::rc::Rc`
[INFO] [stdout]   --> src/ecs/mod.rs:19:5
[INFO] [stdout]    |
[INFO] [stdout] 19 | use std::rc::Rc;
[INFO] [stdout]    |     ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `evmap::*`
[INFO] [stdout]   --> src/ecs/mod.rs:22:5
[INFO] [stdout]    |
[INFO] [stdout] 22 | use evmap::*;
[INFO] [stdout]    |     ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `hibitset`
[INFO] [stdout]   --> src/ecs/mod.rs:23:5
[INFO] [stdout]    |
[INFO] [stdout] 23 | use hibitset;
[INFO] [stdout]    |     ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/ecs/views/mod.rs:30:41
[INFO] [stdout]    |
[INFO] [stdout] 30 |     fn new(world: &super::World) -> Box<ImmediateView<Item = entity::Keytype>>
[INFO] [stdout]    |                                         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[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/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout]    = note: `#[warn(bare_trait_objects)]` (part of `#[warn(rust_2021_compatibility)]`) on by default
[INFO] [stdout] help: if this is a dyn-compatible trait, use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 30 |     fn new(world: &super::World) -> Box<dyn ImmediateView<Item = entity::Keytype>>
[INFO] [stdout]    |                                         +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/ecs/views/mod.rs:30:41
[INFO] [stdout]    |
[INFO] [stdout] 30 |     fn new(world: &super::World) -> Box<ImmediateView<Item = entity::Keytype>>
[INFO] [stdout]    |                                         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[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/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout]    = note: `#[warn(bare_trait_objects)]` (part of `#[warn(rust_2021_compatibility)]`) on by default
[INFO] [stdout] help: if this is a dyn-compatible trait, use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 30 |     fn new(world: &super::World) -> Box<dyn ImmediateView<Item = entity::Keytype>>
[INFO] [stdout]    |                                         +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `world`
[INFO] [stdout]   --> src/ecs/views/mod.rs:85:36
[INFO] [stdout]    |
[INFO] [stdout] 85 |     fn on_enity_removed(&mut self, world: &super::World, entity: u64) {
[INFO] [stdout]    |                                    ^^^^^ help: if this is intentional, prefix it with an underscore: `_world`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `world`
[INFO] [stdout]   --> src/ecs/views/mod.rs:85:36
[INFO] [stdout]    |
[INFO] [stdout] 85 |     fn on_enity_removed(&mut self, world: &super::World, entity: u64) {
[INFO] [stdout]    |                                    ^^^^^ help: if this is intentional, prefix it with an underscore: `_world`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `new` is never used
[INFO] [stdout]   --> src/ecs/component.rs:17:19
[INFO] [stdout]    |
[INFO] [stdout] 16 | impl ComponentIndex {
[INFO] [stdout]    | ------------------- associated function in this implementation
[INFO] [stdout] 17 |     pub(super) fn new(index: KeyType) -> Self {
[INFO] [stdout]    |                   ^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `new` is never used
[INFO] [stdout]   --> src/ecs/system.rs:43:8
[INFO] [stdout]    |
[INFO] [stdout] 42 | impl SystemKey {
[INFO] [stdout]    | -------------- associated function in this implementation
[INFO] [stdout] 43 |     fn new(key: Keytype) -> Self {
[INFO] [stdout]    |        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `init_hierarchy` and `config` are never read
[INFO] [stdout]   --> src/ecs/system.rs:49:5
[INFO] [stdout]    |
[INFO] [stdout] 48 | pub struct SystemManager {
[INFO] [stdout]    |            ------------- fields in this struct
[INFO] [stdout] 49 |     init_hierarchy: AdjHashMap,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^
[INFO] [stdout] 50 |     systems: AutoIndexMap<Arc<RefCell<dyn System>>>,
[INFO] [stdout] 51 |     config: Config,
[INFO] [stdout]    |     ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: eliding a lifetime that's named elsewhere is confusing
[INFO] [stdout]    --> src/ecs/mod.rs:233:67
[INFO] [stdout]     |
[INFO] [stdout] 233 |     pub fn iter_entities<'a>(&'a self) -> Box<dyn Iterator<Item = &KeyType> + 'a> {
[INFO] [stdout]     |                               -- the lifetime is named here       ^^^^^^^^ the same lifetime is elided here
[INFO] [stdout]     |
[INFO] [stdout]     = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout]     = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stdout] help: consistently use `'a`
[INFO] [stdout]     |
[INFO] [stdout] 233 |     pub fn iter_entities<'a>(&'a self) -> Box<dyn Iterator<Item = &'a KeyType> + 'a> {
[INFO] [stdout]     |                                                                    ++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> src/ecs/views/mod.rs:50:17
[INFO] [stdout]    |
[INFO] [stdout] 50 |     pub fn iter(&self) -> std::collections::hash_set::Iter<u64> {
[INFO] [stdout]    |                 ^^^^^     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]    |                 |
[INFO] [stdout]    |                 the lifetime is elided here
[INFO] [stdout]    |
[INFO] [stdout]    = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]    |
[INFO] [stdout] 50 |     pub fn iter(&self) -> std::collections::hash_set::Iter<'_, u64> {
[INFO] [stdout]    |                                                            +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> src/ecs/views/mod.rs:54:18
[INFO] [stdout]    |
[INFO] [stdout] 54 |     pub fn drain(&mut self) -> std::collections::hash_set::Drain<u64> {
[INFO] [stdout]    |                  ^^^^^^^^^     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]    |                  |
[INFO] [stdout]    |                  the lifetime is elided here
[INFO] [stdout]    |
[INFO] [stdout]    = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]    |
[INFO] [stdout] 54 |     pub fn drain(&mut self) -> std::collections::hash_set::Drain<'_, u64> {
[INFO] [stdout]    |                                                                  +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `new` is never used
[INFO] [stdout]   --> src/ecs/component.rs:17:19
[INFO] [stdout]    |
[INFO] [stdout] 16 | impl ComponentIndex {
[INFO] [stdout]    | ------------------- associated function in this implementation
[INFO] [stdout] 17 |     pub(super) fn new(index: KeyType) -> Self {
[INFO] [stdout]    |                   ^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `new` is never used
[INFO] [stdout]   --> src/ecs/system.rs:43:8
[INFO] [stdout]    |
[INFO] [stdout] 42 | impl SystemKey {
[INFO] [stdout]    | -------------- associated function in this implementation
[INFO] [stdout] 43 |     fn new(key: Keytype) -> Self {
[INFO] [stdout]    |        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `init_hierarchy` and `config` are never read
[INFO] [stdout]   --> src/ecs/system.rs:49:5
[INFO] [stdout]    |
[INFO] [stdout] 48 | pub struct SystemManager {
[INFO] [stdout]    |            ------------- fields in this struct
[INFO] [stdout] 49 |     init_hierarchy: AdjHashMap,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^
[INFO] [stdout] 50 |     systems: AutoIndexMap<Arc<RefCell<dyn System>>>,
[INFO] [stdout] 51 |     config: Config,
[INFO] [stdout]    |     ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: eliding a lifetime that's named elsewhere is confusing
[INFO] [stdout]    --> src/ecs/mod.rs:233:67
[INFO] [stdout]     |
[INFO] [stdout] 233 |     pub fn iter_entities<'a>(&'a self) -> Box<dyn Iterator<Item = &KeyType> + 'a> {
[INFO] [stdout]     |                               -- the lifetime is named here       ^^^^^^^^ the same lifetime is elided here
[INFO] [stdout]     |
[INFO] [stdout]     = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout]     = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stdout] help: consistently use `'a`
[INFO] [stdout]     |
[INFO] [stdout] 233 |     pub fn iter_entities<'a>(&'a self) -> Box<dyn Iterator<Item = &'a KeyType> + 'a> {
[INFO] [stdout]     |                                                                    ++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> src/ecs/views/mod.rs:50:17
[INFO] [stdout]    |
[INFO] [stdout] 50 |     pub fn iter(&self) -> std::collections::hash_set::Iter<u64> {
[INFO] [stdout]    |                 ^^^^^     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]    |                 |
[INFO] [stdout]    |                 the lifetime is elided here
[INFO] [stdout]    |
[INFO] [stdout]    = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]    |
[INFO] [stdout] 50 |     pub fn iter(&self) -> std::collections::hash_set::Iter<'_, u64> {
[INFO] [stdout]    |                                                            +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> src/ecs/views/mod.rs:54:18
[INFO] [stdout]    |
[INFO] [stdout] 54 |     pub fn drain(&mut self) -> std::collections::hash_set::Drain<u64> {
[INFO] [stdout]    |                  ^^^^^^^^^     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]    |                  |
[INFO] [stdout]    |                  the lifetime is elided here
[INFO] [stdout]    |
[INFO] [stdout]    = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]    |
[INFO] [stdout] 54 |     pub fn drain(&mut self) -> std::collections::hash_set::Drain<'_, u64> {
[INFO] [stdout]    |                                                                  +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 5.71s
[INFO] running `Command { std: "docker" "inspect" "0069f9d5916c225fee7ecf96472e32d2538e80ce61ddf03d565b39d4fc2afc26", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0069f9d5916c225fee7ecf96472e32d2538e80ce61ddf03d565b39d4fc2afc26", kill_on_drop: false }`
[INFO] [stdout] 0069f9d5916c225fee7ecf96472e32d2538e80ce61ddf03d565b39d4fc2afc26
