djust for changes in specs safety refactor

Cargo.lock

@@ -353,12 +353,6 @@ dependencies = [
  "syn 2.0.29",
 ]
 
-[[package]]
-name = "atom"
-version = "0.3.6"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "c9ff149ed9780025acfdb36862d35b28856bb693ceb451259a7164442f22fdc3"
-
 [[package]]
 name = "atomic-polyfill"
 version = "0.1.11"
@@ -2726,11 +2720,10 @@ checksum = "7f24254aa9a54b5c858eaee2f5bccdb46aaf0e486a595ed5fd8f86ba55232a70"
 
 [[package]]
 name = "hibitset"
-version = "0.6.3"
+version = "0.6.4"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "93a1bb8316a44459a7d14253c4d28dd7395cbd23cc04a68c46e851b8e46d64b1"
+checksum = "f3ede5cfa60c958e60330d65163adbc4211e15a2653ad80eb0cce878de120121"
 dependencies = [
- "atom",
  "rayon",
 ]
 
@@ -3387,6 +3380,22 @@ dependencies = [
  "libc",
 ]
 
+[[package]]
+name = "macro_rules_attribute"
+version = "0.1.3"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "cf0c9b980bf4f3a37fd7b1c066941dd1b1d0152ce6ee6e8fe8c49b9f6810d862"
+dependencies = [
+ "macro_rules_attribute-proc_macro",
+ "paste",
+]
+
+[[package]]
+name = "macro_rules_attribute-proc_macro"
+version = "0.1.3"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "58093314a45e00c77d5c508f76e77c3396afbbc0d01506e7fae47b018bac2b1d"
+
 [[package]]
 name = "malloc_buf"
 version = "0.0.6"
@@ -3814,6 +3823,27 @@ dependencies = [
  "windows-sys 0.48.0",
 ]
 
+[[package]]
+name = "nougat"
+version = "0.2.4"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "97b57b9ced431322f054fc673f1d3c7fa52d80efd9df74ad2fc759f044742510"
+dependencies = [
+ "macro_rules_attribute",
+ "nougat-proc_macros",
+]
+
+[[package]]
+name = "nougat-proc_macros"
+version = "0.2.4"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "c84f77a45e99a2f9b492695d99e1c23844619caa5f3e57647cffacad773ca257"
+dependencies = [
+ "proc-macro2 1.0.66",
+ "quote 1.0.33",
+ "syn 1.0.109",
+]
+
 [[package]]
 name = "ntapi"
 version = "0.3.7"
@@ -5639,12 +5669,13 @@ checksum = "43b2853a4d09f215c24cc5489c992ce46052d359b5109343cbafbf26bc62f8a3"
 
 [[package]]
 name = "shred"
-version = "0.14.1"
+version = "0.15.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "d6aa4148ce950f367ede79bff6bb04bbf3c31317a1291315078ef60c080821a1"
+checksum = "dc6b2cd1ccb08cf2b25d75c936e0cc9c8cb93c39a83814956da32653236338c0"
 dependencies = [
  "ahash 0.7.6",
  "arrayvec 0.7.4",
+ "atomic_refcell",
  "rayon",
  "shred-derive",
  "smallvec",
@@ -5815,14 +5846,15 @@ dependencies = [
 
 [[package]]
 name = "specs"
-version = "0.19.0"
+version = "0.20.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "ad2e89cb8aba27bebf48a5a47b4889e7b317a08884d92cc36109d58992d41325"
+checksum = "a60eabdfd5a80e458c3e7bcc9f1076d6ce3cc8ddb71d69691f00fc0de735a635"
 dependencies = [
  "ahash 0.7.6",
  "crossbeam-queue",
  "hibitset",
  "log",
+ "nougat",
  "rayon",
  "serde",
  "shred",

Cargo.toml

@@ -149,7 +149,7 @@ serde = { version = "1.0.118", features = ["derive"] }
 serde_json = { version = "1.0.50" }
 ron = { version = "0.8", default-features = false}
 
-specs = { version = "0.19", features = ["nightly"] }
+specs = { version = "0.20", features = ["nightly"] }
 image = { version = "0.24", default-features = false, features = ["png"] }
 rayon = { version = "1.5" }
 

client/src/lib.rs

@@ -10,7 +10,7 @@ pub use crate::error::Error;
 pub use authc::AuthClientError;
 pub use common_net::msg::ServerInfo;
 pub use specs::{
-    join::Join, Builder, DispatcherBuilder, Entity as EcsEntity, ReadStorage, World, WorldExt,
+    Builder, DispatcherBuilder, Entity as EcsEntity, Join, LendJoin, ReadStorage, World, WorldExt,
 };
 
 use crate::addr::ConnectionArgs;

common/net/src/sync/packet.rs

@@ -1,7 +1,7 @@
 use super::track::UpdateTracker;
 use common::{resources::Time, uid::Uid};
 use serde::{de::DeserializeOwned, Deserialize, Serialize};
-use specs::{Component, Entity, Join, ReadStorage, World, WorldExt};
+use specs::{storage::AccessMut, Component, Entity, Join, ReadStorage, World, WorldExt};
 use std::{
     convert::{TryFrom, TryInto},
     fmt::Debug,
@@ -33,7 +33,7 @@ pub fn handle_insert<C: Component>(comp: C, entity: Entity, world: &World) {
 /// Useful for implementing CompPacket trait
 pub fn handle_modify<C: Component + Debug>(comp: C, entity: Entity, world: &World) {
     if let Some(mut c) = world.write_storage::<C>().get_mut(entity) {
-        *c = comp
+        *c.access_mut() = comp
     } else {
         error!(
             ?comp,
@@ -77,7 +77,7 @@ pub fn handle_interp_modify<C: InterpolatableComponent + Debug>(
 ) {
     if let Some(mut interp_data) = world.write_storage::<C::InterpData>().get_mut(entity) {
         let time = world.read_resource::<Time>().0;
-        comp.update_component(&mut interp_data, time, force_update);
+        comp.update_component(interp_data.access_mut(), time, force_update);
         handle_modify(comp, entity, world);
     } else {
         error!(

common/src/comp/group.rs

@@ -2,7 +2,7 @@ use crate::{comp::Alignment, uid::Uid};
 use hashbrown::HashMap;
 use serde::{Deserialize, Serialize};
 use slab::Slab;
-use specs::{Component, DerefFlaggedStorage, Join};
+use specs::{Component, DerefFlaggedStorage, Join, LendJoin};
 use tracing::{error, warn};
 
 // Primitive group system

common/src/region.rs

@@ -2,7 +2,7 @@ use crate::comp::{Pos, Presence, Vel};
 use common_base::span;
 use hashbrown::{hash_map::DefaultHashBuilder, HashSet};
 use indexmap::IndexMap;
-use specs::{hibitset::BitSetLike, BitSet, Entities, Join, ReadStorage};
+use specs::{hibitset::BitSetLike, BitSet, Entities, Join, LendJoin, ReadStorage};
 use vek::*;
 
 pub enum Event {

common/systems/src/beam.rs

@@ -17,8 +17,8 @@ use common_ecs::{Job, Origin, ParMode, Phase, System};
 use rand::Rng;
 use rayon::iter::ParallelIterator;
 use specs::{
-    shred::ResourceId, Entities, Join, ParJoin, Read, ReadExpect, ReadStorage, SystemData, World,
+    shred::ResourceId, Entities, Join, LendJoin, ParJoin, Read, ReadExpect, ReadStorage,
-    WriteStorage,
+    SystemData, World, WriteStorage,
 };
 use std::time::Duration;
 use vek::*;
@@ -311,11 +311,13 @@ impl<'a> System<'a> for Sys {
         // Set start time on new beams
         // This change doesn't need to be recorded as it is not sent to the client
         beam_segments.set_event_emission(false);
-        (&mut beam_segments).join().for_each(|mut beam_segment| {
+        (&mut beam_segments)
-            if beam_segment.creation.is_none() {
+            .lend_join()
-                beam_segment.creation = Some(time);
+            .for_each(|mut beam_segment| {
-            }
+                if beam_segment.creation.is_none() {
-        });
+                    beam_segment.creation = Some(time);
+                }
+            });
         beam_segments.set_event_emission(true);
     }
 }

common/systems/src/buff.rs

@@ -22,8 +22,8 @@ use common_base::prof_span;
 use common_ecs::{Job, Origin, ParMode, Phase, System};
 use rayon::iter::ParallelIterator;
 use specs::{
-    shred::ResourceId, Entities, Entity, Join, ParJoin, Read, ReadExpect, ReadStorage, SystemData,
+    shred::ResourceId, Entities, Entity, LendJoin, ParJoin, Read, ReadExpect, ReadStorage,
-    World, WriteStorage,
+    SystemData, World, WriteStorage,
 };
 
 #[derive(SystemData)]
@@ -120,7 +120,7 @@ impl<'a> System<'a> for Sys {
             }
         }
 
-        for (entity, buff_comp, mut stat, body, health, energy, physics_state) in (
+        let buff_join = (
             &read_data.entities,
             &read_data.buffs,
             &mut stats,
@@ -129,8 +129,9 @@ impl<'a> System<'a> for Sys {
             &read_data.energies,
             read_data.physics_states.maybe(),
         )
-            .join()
+            .lend_join();
-        {
+        buff_join.for_each(|comps| {
+            let (entity, buff_comp, mut stat, body, health, energy, physics_state) = comps;
             // Apply buffs to entity based off of their current physics_state
             if let Some(physics_state) = physics_state {
                 if matches!(
@@ -459,7 +460,7 @@ impl<'a> System<'a> for Sys {
                     },
                 });
             }
-        }
+        });
         // Turned back to true
         stats.set_event_emission(true);
     }

common/systems/src/character_behavior.rs

@@ -1,5 +1,5 @@
 use specs::{
-    shred::ResourceId, Entities, Join, LazyUpdate, Read, ReadExpect, ReadStorage, SystemData,
+    shred::ResourceId, Entities, LazyUpdate, LendJoin, Read, ReadExpect, ReadStorage, SystemData,
     World, WriteStorage,
 };
 
@@ -105,24 +105,7 @@ impl<'a> System<'a> for Sys {
         let mut server_events = Vec::new();
         let mut output_events = OutputEvents::new(&mut local_events, &mut server_events);
 
-        for (
+        let join = (
-            entity,
-            uid,
-            mut char_state,
-            character_activity,
-            pos,
-            vel,
-            ori,
-            mass,
-            density,
-            energy,
-            inventory,
-            controller,
-            health,
-            body,
-            (physics, scale, stat, skill_set, active_abilities, is_rider),
-            combo,
-        ) in (
             &read_data.entities,
             &read_data.uids,
             &mut character_states,
@@ -147,12 +130,30 @@ impl<'a> System<'a> for Sys {
             ),
             read_data.combos.maybe(),
         )
-            .join()
+            .lend_join();
-        {
+        join.for_each(|comps| {
+            let (
+                entity,
+                uid,
+                mut char_state,
+                character_activity,
+                pos,
+                vel,
+                ori,
+                mass,
+                density,
+                energy,
+                inventory,
+                controller,
+                health,
+                body,
+                (physics, scale, stat, skill_set, active_abilities, is_rider),
+                combo,
+            ) = comps;
             // Being dead overrides all other states
             if health.map_or(false, |h| h.is_dead) {
                 // Do nothing
-                continue;
+                return;
             }
 
             // Enter stunned state if poise damage is enough
@@ -230,7 +231,7 @@ impl<'a> System<'a> for Sys {
             if is_rider.is_some() && !join_struct.char_state.can_perform_mounted() {
                 // TODO: A better way to swap between mount inputs and rider inputs
                 *join_struct.char_state = CharacterState::Idle(idle::Data::default());
-                continue;
+                return;
             }
 
             let j = JoinData::new(
@@ -244,7 +245,7 @@ impl<'a> System<'a> for Sys {
 
             let state_update = j.character.behavior(&j, &mut output_events);
             Self::publish_state_update(&mut join_struct, state_update, &mut output_events);
-        }
+        });
 
         local_emitter.append_vec(local_events);
         server_emitter.append_vec(server_events);

common/systems/src/melee.rs

@@ -18,7 +18,7 @@ use common::{
 use common_ecs::{Job, Origin, Phase, System};
 use itertools::Itertools;
 use specs::{
-    shred::ResourceId, Entities, Join, Read, ReadExpect, ReadStorage, SystemData, World,
+    shred::ResourceId, Entities, Join, LendJoin, Read, ReadExpect, ReadStorage, SystemData, World,
     WriteStorage,
 };
 use vek::*;

common/systems/src/mount.rs

@@ -6,7 +6,7 @@ use common::{
     uid::IdMaps,
 };
 use common_ecs::{Job, Origin, Phase, System};
-use specs::{Entities, Join, Read, ReadExpect, ReadStorage, WriteStorage};
+use specs::{Entities, Join, LendJoin, Read, ReadExpect, ReadStorage, WriteStorage};
 use tracing::error;
 use vek::*;
 

common/systems/src/phys.rs

@@ -23,8 +23,8 @@ use common_ecs::{Job, Origin, ParMode, Phase, PhysicsMetrics, System};
 use rayon::iter::ParallelIterator;
 use specs::{
     shred::{ResourceId, World},
-    Entities, Entity, Join, ParJoin, Read, ReadExpect, ReadStorage, SystemData, Write, WriteExpect,
+    Entities, Entity, Join, LendJoin, ParJoin, Read, ReadExpect, ReadStorage, SystemData, Write,
-    WriteStorage,
+    WriteExpect, WriteStorage,
 };
 use std::ops::Range;
 use vek::*;

common/systems/src/shockwave.rs

@@ -15,7 +15,7 @@ use common::{
 use common_ecs::{Job, Origin, Phase, System};
 use rand::Rng;
 use specs::{
-    shred::ResourceId, Entities, Join, Read, ReadStorage, SystemData, World, WriteStorage,
+    shred::ResourceId, Entities, Join, LendJoin, Read, ReadStorage, SystemData, World, WriteStorage,
 };
 use vek::*;
 
@@ -264,7 +264,7 @@ impl<'a> System<'a> for Sys {
         // Set start time on new shockwaves
         // This change doesn't need to be recorded as it is not sent to the client
         shockwaves.set_event_emission(false);
-        (&mut shockwaves).join().for_each(|mut shockwave| {
+        (&mut shockwaves).lend_join().for_each(|mut shockwave| {
             if shockwave.creation.is_none() {
                 shockwave.creation = Some(time);
             }

common/systems/src/stats.rs

@@ -12,7 +12,7 @@ use common::{
 };
 use common_ecs::{Job, Origin, Phase, System};
 use specs::{
-    shred::ResourceId, Entities, Join, Read, ReadExpect, ReadStorage, SystemData, World, Write,
+    shred::ResourceId, Entities, LendJoin, Read, ReadExpect, ReadStorage, SystemData, World, Write,
     WriteStorage,
 };
 
@@ -70,7 +70,7 @@ impl<'a> System<'a> for Sys {
         let dt = read_data.dt.0;
 
         // Update stats
-        for (entity, stats, mut health, pos, mut energy, inventory) in (
+        let join = (
             &read_data.entities,
             &stats,
             &mut healths,
@@ -78,8 +78,8 @@ impl<'a> System<'a> for Sys {
             &mut energies,
             read_data.inventories.maybe(),
         )
-            .join()
+            .lend_join();
-        {
+        join.for_each(|(entity, stats, mut health, pos, mut energy, inventory)| {
             let set_dead = { health.should_die() && !health.is_dead };
 
             if set_dead {
@@ -112,17 +112,17 @@ impl<'a> System<'a> for Sys {
                 // update to the client.
                 energy.update_internal_integer_maximum(new_max);
             }
-        }
+        });
 
         // Apply effects from leveling skills
-        for (mut skill_set, mut health, mut energy, body) in (
+        let join = (
             &mut skill_sets,
             &mut healths,
             &mut energies,
             &read_data.bodies,
         )
-            .join()
+            .lend_join();
-        {
+        join.for_each(|(mut skill_set, mut health, mut energy, body)| {
             if skill_set.modify_health {
                 let health_level = skill_set
                     .skill_level(Skill::General(GeneralSkill::HealthIncrease))
@@ -137,12 +137,11 @@ impl<'a> System<'a> for Sys {
                 energy.update_max_energy(*body, energy_level);
                 skill_set.modify_energy = false;
             }
-        }
+        });
 
         // Update energies and poises
-        for (character_state, mut energy, mut poise) in
+        let join = (&read_data.char_states, &mut energies, &mut poises).lend_join();
-            (&read_data.char_states, &mut energies, &mut poises).join()
+        join.for_each(|(character_state, mut energy, mut poise)| {
-        {
             match character_state {
                 // Sitting accelerates recharging energy the most
                 CharacterState::Sit => {
@@ -207,15 +206,17 @@ impl<'a> System<'a> for Sys {
                 | CharacterState::UseItem(_)
                 | CharacterState::SpriteInteract(_) => {},
             }
-        }
+        });
 
         // Decay combo
-        for (_, mut combo) in (&read_data.entities, &mut combos).join() {
+        (&read_data.entities, &mut combos)
-            if combo.counter() > 0
+            .lend_join()
-                && read_data.time.0 - combo.last_increase() > comp::combo::COMBO_DECAY_START
+            .for_each(|(_, mut combo)| {
-            {
+                if combo.counter() > 0
-                combo.reset();
+                    && read_data.time.0 - combo.last_increase() > comp::combo::COMBO_DECAY_START
-            }
+                {
-        }
+                    combo.reset();
+                }
+            });
     }
 }

server/src/cmd.rs

@@ -59,7 +59,7 @@ use core::{cmp::Ordering, convert::TryFrom};
 use hashbrown::{HashMap, HashSet};
 use humantime::Duration as HumanDuration;
 use rand::{thread_rng, Rng};
-use specs::{storage::StorageEntry, Builder, Entity as EcsEntity, Join, WorldExt};
+use specs::{storage::StorageEntry, Builder, Entity as EcsEntity, Join, LendJoin, WorldExt};
 use std::{fmt::Write, ops::DerefMut, str::FromStr, sync::Arc};
 use vek::*;
 use wiring::{Circuit, Wire, WireNode, WiringAction, WiringActionEffect, WiringElement};

server/src/events/entity_manipulation.rs

@@ -42,7 +42,7 @@ use common_net::{msg::ServerGeneral, sync::WorldSyncExt};
 use common_state::{AreasContainer, BlockChange, NoDurabilityArea};
 use hashbrown::HashSet;
 use rand::Rng;
-use specs::{join::Join, Builder, Entity as EcsEntity, Entity, WorldExt};
+use specs::{Builder, Entity as EcsEntity, Entity, Join, LendJoin, WorldExt};
 use std::{collections::HashMap, iter, sync::Arc, time::Duration};
 use tracing::{debug, error, warn};
 use vek::{Vec2, Vec3};

server/src/lib.rs

@@ -100,7 +100,7 @@ use persistence::{
 };
 use prometheus::Registry;
 use prometheus_hyper::Server as PrometheusServer;
-use specs::{join::Join, Builder, Entity as EcsEntity, Entity, WorldExt};
+use specs::{Builder, Entity as EcsEntity, Entity, Join, LendJoin, WorldExt};
 use std::{
     i32,
     ops::{Deref, DerefMut},

server/src/rtsim/tick.rs

@@ -19,7 +19,7 @@ use rtsim::data::{
     npc::{Profession, SimulationMode},
     Npc, Sites,
 };
-use specs::{Entities, Join, Read, ReadExpect, ReadStorage, WriteExpect, WriteStorage};
+use specs::{Entities, Join, LendJoin, Read, ReadExpect, ReadStorage, WriteExpect, WriteStorage};
 use std::{sync::Arc, time::Duration};
 use tracing::error;
 use world::site::settlement::trader_loadout;

server/src/sys/agent.rs

@@ -19,7 +19,7 @@ use common_base::prof_span;
 use common_ecs::{Job, Origin, ParMode, Phase, System};
 use rand::thread_rng;
 use rayon::iter::ParallelIterator;
-use specs::{Join, ParJoin, Read, WriteStorage};
+use specs::{LendJoin, ParJoin, Read, WriteStorage};
 
 /// This system will allow NPCs to modify their controller
 #[derive(Default)]

server/src/sys/entity_sync.rs

@@ -16,7 +16,7 @@ use common::{
 use common_ecs::{Job, Origin, Phase, System};
 use common_net::{msg::ServerGeneral, sync::CompSyncPackage};
 use itertools::Either;
-use specs::{Entities, Join, Read, ReadExpect, ReadStorage, Write, WriteStorage};
+use specs::{Entities, Join, LendJoin, Read, ReadExpect, ReadStorage, Write, WriteStorage};
 use vek::*;
 
 /// This system will send physics updates to the client
@@ -347,7 +347,8 @@ impl<'a> System<'a> for Sys {
         }
 
         // Update the last physics components for each entity
-        for (_, &pos, vel, ori, last_pos, last_vel, last_ori) in (
+
+        (
             &entities,
             &positions,
             velocities.maybe(),
@@ -356,12 +357,12 @@ impl<'a> System<'a> for Sys {
             last_vel.entries(),
             last_ori.entries(),
         )
-            .join()
+            .lend_join()
-        {
+            .for_each(|(_, &pos, vel, ori, last_pos, last_vel, last_ori)| {
-            last_pos.replace(Last(pos));
+                last_pos.replace(Last(pos));
-            vel.and_then(|&v| last_vel.replace(Last(v)));
+                vel.and_then(|&v| last_vel.replace(Last(v)));
-            ori.and_then(|&o| last_ori.replace(Last(o)));
+                ori.and_then(|&o| last_ori.replace(Last(o)));
-        }
+            });
 
         // Handle entity deletion in regions that don't exist in RegionMap
         // (theoretically none)

server/src/sys/msg/general.rs

@@ -8,7 +8,7 @@ use common::{
 use common_ecs::{Job, Origin, Phase, System};
 use common_net::msg::{ClientGeneral, ServerGeneral};
 use rayon::prelude::*;
-use specs::{Entities, Join, ParJoin, Read, ReadStorage, WriteStorage};
+use specs::{Entities, LendJoin, ParJoin, Read, ReadStorage, WriteStorage};
 use tracing::{debug, error, warn};
 
 impl Sys {

server/src/sys/msg/in_game.rs

@@ -19,7 +19,7 @@ use common_net::msg::{ClientGeneral, ServerGeneral};
 use common_state::{AreasContainer, BlockChange, BuildArea};
 use core::mem;
 use rayon::prelude::*;
-use specs::{Entities, Join, Read, ReadExpect, ReadStorage, Write, WriteStorage};
+use specs::{Entities, Join, LendJoin, Read, ReadExpect, ReadStorage, Write, WriteStorage};
 use std::{borrow::Cow, time::Instant};
 use tracing::{debug, trace, warn};
 use vek::*;

server/src/sys/msg/register.rs

@@ -24,8 +24,8 @@ use itertools::Either;
 use plugin_api::Health;
 use rayon::prelude::*;
 use specs::{
-    shred::ResourceId, Entities, Join, ParJoin, Read, ReadExpect, ReadStorage, SystemData, World,
+    shred::ResourceId, Entities, Join, LendJoin, ParJoin, Read, ReadExpect, ReadStorage,
-    WriteStorage,
+    SystemData, World, WriteStorage,
 };
 use tracing::{debug, info, trace, warn};
 

server/src/sys/msg/terrain.rs

@@ -12,7 +12,7 @@ use common::{
 use common_ecs::{Job, Origin, ParMode, Phase, System};
 use common_net::msg::{ClientGeneral, ServerGeneral};
 use rayon::prelude::*;
-use specs::{Entities, Join, Read, ReadExpect, ReadStorage, Write, WriteStorage};
+use specs::{Entities, Join, LendJoin, Read, ReadExpect, ReadStorage, Write, WriteStorage};
 use tracing::{debug, trace};
 
 /// This system will handle new messages from clients

server/src/sys/object.rs

@@ -8,7 +8,7 @@ use common::{
     CachedSpatialGrid, Damage, DamageKind, DamageSource, Explosion, RadiusEffect,
 };
 use common_ecs::{Job, Origin, Phase, System};
-use specs::{Entities, Join, Read, ReadStorage};
+use specs::{Entities, Join, LendJoin, Read, ReadStorage};
 use vek::Rgb;
 
 /// This system is responsible for handling misc object behaviours
@@ -195,7 +195,7 @@ impl<'a> System<'a> for Sys {
                         .in_circle_aabr(pos.0.xy(), TELEPORTER_RADIUS)
                         .any(|entity| {
                             (&positions, &teleporting)
-                                .join()
+                                .lend_join()
                                 .get(entity, &entities)
                                 .map_or(false, |(teleporter_pos, _)| {
                                     pos.0.distance_squared(teleporter_pos.0)

server/src/sys/persistence.rs

@@ -8,7 +8,7 @@ use common::{
     uid::Uid,
 };
 use common_ecs::{Job, Origin, Phase, System};
-use specs::{Join, ReadStorage, Write, WriteExpect};
+use specs::{Join, LendJoin, ReadStorage, Write, WriteExpect};
 use tracing::error;
 
 #[derive(Default)]

server/src/sys/subscription.rs

@@ -13,7 +13,8 @@ use common::{
 use common_ecs::{Job, Origin, Phase, System};
 use common_net::msg::ServerGeneral;
 use specs::{
-    Entities, Join, Read, ReadExpect, ReadStorage, SystemData, World, WorldExt, WriteStorage,
+    Entities, Join, LendJoin, Read, ReadExpect, ReadStorage, SystemData, World, WorldExt,
+    WriteStorage,
 };
 use tracing::{debug, error};
 use vek::*;

server/src/sys/teleporter.rs

@@ -8,7 +8,7 @@ use common::{
     CachedSpatialGrid,
 };
 use common_ecs::{Origin, Phase, System};
-use specs::{Entities, Join, Read, ReadStorage, WriteStorage};
+use specs::{Entities, Join, LendJoin, Read, ReadStorage, WriteStorage};
 use vek::Vec3;
 
 const MAX_AGGRO_DIST: f32 = 200.; // If an entity further than this is aggroed at a player, the portal will still work
@@ -109,7 +109,7 @@ impl<'a> System<'a> for Sys {
                     .in_circle_aabr(position.0.xy(), PET_TELEPORT_RADIUS)
                     .filter_map(|entity| {
                         (&entities, &positions, &alignments)
-                            .join()
+                            .lend_join()
                             .get(entity, &entities)
                     })
                     .filter_map(|(nearby_entity, entity_position, alignment)| {

server/src/sys/terrain.rs

@@ -32,8 +32,8 @@ use core::cmp::Reverse;
 use itertools::Itertools;
 use rayon::{iter::Either, prelude::*};
 use specs::{
-    storage::GenericReadStorage, Entities, Entity, Join, ParJoin, Read, ReadExpect, ReadStorage,
+    storage::GenericReadStorage, Entities, Entity, Join, LendJoin, ParJoin, Read, ReadExpect,
-    Write, WriteExpect, WriteStorage,
+    ReadStorage, Write, WriteExpect, WriteStorage,
 };
 use std::sync::Arc;
 use vek::*;

server/src/sys/waypoint.rs

@@ -5,7 +5,7 @@ use common::{
 };
 use common_ecs::{Job, Origin, Phase, System};
 use common_net::msg::{Notification, ServerGeneral};
-use specs::{Entities, Join, Read, ReadStorage, WriteStorage};
+use specs::{Entities, Join, LendJoin, Read, ReadStorage, WriteStorage};
 
 /// Cooldown time (in seconds) for "Waypoint Saved" notifications
 const NOTIFY_TIME: f64 = 10.0;

server/src/sys/wiring.rs

@@ -8,8 +8,8 @@ use common_ecs::{Job, Origin, Phase, System};
 use common_state::BlockChange;
 use hashbrown::HashMap;
 use specs::{
-    join::Join, shred::ResourceId, Entities, Entity, Read, ReadStorage, SystemData, World, Write,
+    shred::ResourceId, Entities, Entity, Join, LendJoin, Read, ReadStorage, SystemData, World,
-    WriteStorage,
+    Write, WriteStorage,
 };
 
 #[derive(SystemData)]
@@ -106,7 +106,7 @@ impl<'a> System<'a> for Sys {
             (&mut light_emitters).maybe(),
             read_data.pos.maybe(),
         )
-            .join()
+            .lend_join()
             .for_each(
                 |(entity, wiring_element, physics_state, mut light_emitter, pos)| {
                     wiring_element

voxygen/egui/src/lib.rs

@@ -8,7 +8,7 @@ mod character_states;
 mod experimental_shaders;
 mod widgets;
 
-use client::{Client, Join, World, WorldExt};
+use client::{Client, Join, LendJoin, World, WorldExt};
 use common::{
     cmd::ServerChatCommand,
     comp,

voxygen/src/audio/sfx/event_mapper/combat/mod.rs

@@ -19,7 +19,7 @@ use common::{
 };
 use common_state::State;
 use hashbrown::HashMap;
-use specs::{Entity as EcsEntity, Join, WorldExt};
+use specs::{Entity as EcsEntity, Join, LendJoin, WorldExt};
 use std::time::{Duration, Instant};
 
 #[derive(Clone)]

voxygen/src/audio/sfx/event_mapper/movement/mod.rs

@@ -16,7 +16,7 @@ use common::{
 };
 use common_state::State;
 use hashbrown::HashMap;
-use specs::{Entity as EcsEntity, Join, WorldExt};
+use specs::{Entity as EcsEntity, Join, LendJoin, WorldExt};
 use std::time::{Duration, Instant};
 use vek::*;
 

voxygen/src/hud/mod.rs

@@ -130,7 +130,7 @@ use conrod_core::{
 use hashbrown::{HashMap, HashSet};
 use i18n::Localization;
 use rand::Rng;
-use specs::{Entity as EcsEntity, Join, WorldExt};
+use specs::{Entity as EcsEntity, Join, LendJoin, WorldExt};
 use std::{
     borrow::Cow,
     cmp::Ordering,

voxygen/src/scene/figure/mod.rs

@@ -62,7 +62,7 @@ use core::{
 };
 use guillotiere::AtlasAllocator;
 use hashbrown::HashMap;
-use specs::{Entity as EcsEntity, Join, LazyUpdate, WorldExt};
+use specs::{Entity as EcsEntity, Join, LazyUpdate, LendJoin, WorldExt};
 use std::sync::Arc;
 use treeculler::{BVol, BoundingSphere};
 use vek::*;

voxygen/src/scene/mod.rs

@@ -42,7 +42,7 @@ use common_state::State;
 use comp::item::Reagent;
 use hashbrown::HashMap;
 use num::traits::{Float, FloatConst};
-use specs::{Entity as EcsEntity, Join, WorldExt};
+use specs::{Entity as EcsEntity, Join, LendJoin, WorldExt};
 use vek::*;
 
 const ZOOM_CAP_PLAYER: f32 = 1000.0;

voxygen/src/scene/particle.rs

@@ -26,7 +26,7 @@ use common::{
 use common_base::span;
 use hashbrown::HashMap;
 use rand::prelude::*;
-use specs::{Join, WorldExt};
+use specs::{Join, LendJoin, WorldExt};
 use std::{
     f32::consts::{PI, TAU},
     time::Duration,

voxygen/src/session/interactable.rs

@@ -1,5 +1,5 @@
 use ordered_float::OrderedFloat;
-use specs::{Join, ReadStorage, WorldExt};
+use specs::{Join, LendJoin, ReadStorage, WorldExt};
 use vek::*;
 
 use super::{
@@ -228,7 +228,7 @@ pub(super) fn select_interactable(
             is_riders.maybe(),
             (stats.mask() | items.mask()).maybe(),
         )
-            .join();
+            .lend_join();
 
         let closest_interactable_entity = spacial_grid.0.in_circle_aabr(player_pos.xy(), MAX_PICKUP_RANGE)
             .filter(|&e| e != player_entity) // skip the player's entity
@@ -279,7 +279,7 @@ pub(super) fn select_interactable(
             &ecs.read_storage::<comp::Collider>(),
         );
 
-        let mut volumes_data = volumes_data.join();
+        let mut volumes_data = volumes_data.lend_join();
 
         let volumes = spacial_grid.0.in_circle_aabr(player_pos.xy(), search_dist)
             .filter(|&e| e != player_entity) // skip the player's entity

voxygen/src/session/mod.rs

@@ -7,7 +7,7 @@ use std::{cell::RefCell, collections::HashSet, rc::Rc, result::Result, time::Dur
 #[cfg(not(target_os = "macos"))]
 use mumble_link::SharedLink;
 use ordered_float::OrderedFloat;
-use specs::{Join, WorldExt};
+use specs::{Join, LendJoin, WorldExt};
 use tracing::{error, info};
 use vek::*;
 

voxygen/src/session/target.rs

@@ -1,4 +1,4 @@
-use specs::{Join, WorldExt};
+use specs::{Join, LendJoin, WorldExt};
 use vek::*;
 
 use client::{self, Client};