[INFO] fetching crate shard-ecs 0.2.7...
[INFO] checking shard-ecs-0.2.7 against try#c387b04bf028733cd561d62128c8a5eee4bc1458+rustflags=-Dtail_expr_drop_order for pr-130930
[INFO] extracting crate shard-ecs 0.2.7 into /workspace/builds/worker-0-tc2/source
[INFO] validating manifest of crates.io crate shard-ecs 0.2.7 on toolchain c387b04bf028733cd561d62128c8a5eee4bc1458
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c387b04bf028733cd561d62128c8a5eee4bc1458" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate shard-ecs 0.2.7
[INFO] finished tweaking crates.io crate shard-ecs 0.2.7
[INFO] tweaked toml for crates.io crate shard-ecs 0.2.7 written to /workspace/builds/worker-0-tc2/source/Cargo.toml
[INFO] crate crates.io crate shard-ecs 0.2.7 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" "+c387b04bf028733cd561d62128c8a5eee4bc1458" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:6252d7ea7fb8caaf7af6d800c5fb250a9cd862b9a7f9508afb3c54fa7fe1102e" "/opt/rustwide/cargo-home/bin/cargo" "+c387b04bf028733cd561d62128c8a5eee4bc1458" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] db2eefcae77931c852455664aa6a0a69d20dcf79984829e83fe750104fd1fcef
[INFO] running `Command { std: "docker" "start" "-a" "db2eefcae77931c852455664aa6a0a69d20dcf79984829e83fe750104fd1fcef", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "db2eefcae77931c852455664aa6a0a69d20dcf79984829e83fe750104fd1fcef", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "db2eefcae77931c852455664aa6a0a69d20dcf79984829e83fe750104fd1fcef", kill_on_drop: false }`
[INFO] [stdout] db2eefcae77931c852455664aa6a0a69d20dcf79984829e83fe750104fd1fcef
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid -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@sha256:6252d7ea7fb8caaf7af6d800c5fb250a9cd862b9a7f9508afb3c54fa7fe1102e" "/opt/rustwide/cargo-home/bin/cargo" "+c387b04bf028733cd561d62128c8a5eee4bc1458" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 1618c46a4f21696087ea2e21f8947a8804f59c1fd31dfbc19fc79209f2bcaaf3
[INFO] running `Command { std: "docker" "start" "-a" "1618c46a4f21696087ea2e21f8947a8804f59c1fd31dfbc19fc79209f2bcaaf3", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.137
[INFO] [stderr]     Checking shard-ecs v0.2.7 (/opt/rustwide/workdir)
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/entity_registry/mod.rs:40:22
[INFO] [stdout]    |
[INFO] [stdout] 40 |         let (entity, mut entry) = if self.next_free_slot == IndexInArchetype::INVALID_VALUE {
[INFO] [stdout]    |                      ----^^^^^
[INFO] [stdout]    |                      |
[INFO] [stdout]    |                      help: remove this `mut`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Checking getrandom v0.2.8
[INFO] [stderr]     Checking rand_core v0.6.4
[INFO] [stderr]     Checking rand_chacha v0.3.1
[INFO] [stderr]     Checking rand v0.8.5
[INFO] [stdout] error: this value of type `impl Iterator<Item = <(test_components::A, test_components::B) as component_group::ComponentGroup>::SliceMutRefTuple<'_>>` has significant drop implementation that will have a different drop order from that of Edition 2021
[INFO] [stdout]   --> src/archetype_registry/tests.rs:37:19
[INFO] [stdout]    |
[INFO] [stdout] 8  |     let mut registry = ArchetypeRegistry::default();
[INFO] [stdout]    |         ------------ these local bindings with significant drop implementation may observe changes in drop order under Edition 2024
[INFO] [stdout] ...
[INFO] [stdout] 37 |     for (a, b) in registry.iter_components_matching_mut::<(A, B)>() {
[INFO] [stdout]    |                   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this changes meaning in Rust 2024
[INFO] [stdout]    = note: for more information, see issue #123739 <https://github.com/rust-lang/rust/issues/123739>
[INFO] [stdout]    = note: requested on the command line with `-D tail-expr-drop-order`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/entity_registry/mod.rs:40:22
[INFO] [stdout]    |
[INFO] [stdout] 40 |         let (entity, mut entry) = if self.next_free_slot == IndexInArchetype::INVALID_VALUE {
[INFO] [stdout]    |                      ----^^^^^
[INFO] [stdout]    |                      |
[INFO] [stdout]    |                      help: remove this `mut`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 1 previous error; 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `shard-ecs` (lib test) due to 2 previous errors; 1 warning emitted
[INFO] running `Command { std: "docker" "inspect" "1618c46a4f21696087ea2e21f8947a8804f59c1fd31dfbc19fc79209f2bcaaf3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1618c46a4f21696087ea2e21f8947a8804f59c1fd31dfbc19fc79209f2bcaaf3", kill_on_drop: false }`
[INFO] [stdout] 1618c46a4f21696087ea2e21f8947a8804f59c1fd31dfbc19fc79209f2bcaaf3