[INFO] fetching crate messagebus 0.15.2...
[INFO] checking messagebus-0.15.2 against try#c387b04bf028733cd561d62128c8a5eee4bc1458+rustflags=-Dtail_expr_drop_order for pr-130930
[INFO] extracting crate messagebus 0.15.2 into /workspace/builds/worker-6-tc2/source
[INFO] validating manifest of crates.io crate messagebus 0.15.2 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 messagebus 0.15.2
[INFO] finished tweaking crates.io crate messagebus 0.15.2
[INFO] tweaked toml for crates.io crate messagebus 0.15.2 written to /workspace/builds/worker-6-tc2/source/Cargo.toml
[INFO] crate crates.io crate messagebus 0.15.2 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-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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] 7d9957ff206cd35cc8c5fa0a93f8d59f03892bcbbb67d94ca5f0735624014ad9
[INFO] running `Command { std: "docker" "start" "-a" "7d9957ff206cd35cc8c5fa0a93f8d59f03892bcbbb67d94ca5f0735624014ad9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "7d9957ff206cd35cc8c5fa0a93f8d59f03892bcbbb67d94ca5f0735624014ad9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7d9957ff206cd35cc8c5fa0a93f8d59f03892bcbbb67d94ca5f0735624014ad9", kill_on_drop: false }`
[INFO] [stdout] 7d9957ff206cd35cc8c5fa0a93f8d59f03892bcbbb67d94ca5f0735624014ad9
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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] fc0d54a94003703c8f23efd610ea3915770515a75f3414cce38b454e38b8ebd4
[INFO] running `Command { std: "docker" "start" "-a" "fc0d54a94003703c8f23efd610ea3915770515a75f3414cce38b454e38b8ebd4", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.147
[INFO] [stderr]    Compiling proc-macro2 v1.0.66
[INFO] [stderr]    Compiling unicode-ident v1.0.11
[INFO] [stderr]    Compiling futures-core v0.3.28
[INFO] [stderr]    Compiling lock_api v0.4.10
[INFO] [stderr]    Compiling slab v0.4.8
[INFO] [stderr]    Compiling futures-channel v0.3.28
[INFO] [stderr]    Compiling parking_lot_core v0.9.8
[INFO] [stderr]    Compiling futures-task v0.3.28
[INFO] [stderr]    Compiling memchr v2.5.0
[INFO] [stderr]     Checking smallvec v1.11.0
[INFO] [stderr]     Checking futures-sink v0.3.28
[INFO] [stderr]    Compiling futures-util v0.3.28
[INFO] [stderr]    Compiling indexmap v1.9.3
[INFO] [stderr]     Checking futures-io v0.3.28
[INFO] [stderr]    Compiling priority-queue v1.3.2
[INFO] [stderr]     Checking ppv-lite86 v0.2.17
[INFO] [stderr]     Checking hashbrown v0.14.0
[INFO] [stderr]     Checking once_cell v1.18.0
[INFO] [stderr]     Checking bytes v1.4.0
[INFO] [stderr]     Checking boxcar v0.2.3
[INFO] [stderr]     Checking log v0.4.20
[INFO] [stderr]     Checking kanal v0.1.0-pre8
[INFO] [stderr]    Compiling quote v1.0.33
[INFO] [stderr]    Compiling syn v2.0.29
[INFO] [stderr]     Checking getrandom v0.2.10
[INFO] [stderr]     Checking signal-hook-registry v1.4.1
[INFO] [stderr]     Checking num_cpus v1.16.0
[INFO] [stderr]     Checking socket2 v0.5.3
[INFO] [stderr]     Checking mio v0.8.8
[INFO] [stderr]     Checking rand_core v0.6.4
[INFO] [stderr]     Checking parking_lot v0.12.1
[INFO] [stderr]     Checking dashmap v5.5.0
[INFO] [stderr]     Checking rand_chacha v0.3.1
[INFO] [stderr]     Checking rand_xorshift v0.3.0
[INFO] [stderr]     Checking rand v0.8.5
[INFO] [stderr]    Compiling futures-macro v0.3.28
[INFO] [stderr]    Compiling tokio-macros v2.1.0
[INFO] [stderr]    Compiling async-stream-impl v0.3.5
[INFO] [stderr]     Checking async-stream v0.3.5
[INFO] [stderr]     Checking tokio v1.32.0
[INFO] [stderr]     Checking futures-executor v0.3.28
[INFO] [stderr]     Checking futures v0.3.28
[INFO] [stderr]     Checking messagebus v0.15.2 (/opt/rustwide/workdir)
[INFO] [stdout] error: this value of type `Result<(), <<B as builder::Builder<M>>::Context as Handler<M>>::Error>` has significant drop implementation that will have a different drop order from that of Edition 2021
[INFO] [stdout]    --> src/handler.rs:172:35
[INFO] [stdout]     |
[INFO] [stdout] 95  |                 let _test = spawn_counter.clone().lease_unit(|| true);
[INFO] [stdout]     |                     ----- these local bindings with significant drop implementation may observe changes in drop order under Edition 2024
[INFO] [stdout] ...
[INFO] [stdout] 172 |                 if let Err(err) = handler.finalize(bus.clone()).await {
[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: method `message_type_id` is never used
[INFO] [stdout]   --> src/chan.rs:18:8
[INFO] [stdout]    |
[INFO] [stdout] 15 | pub(crate) trait AbstractSender: Any + Send + Sync {
[INFO] [stdout]    |                  -------------- method in this trait
[INFO] [stdout] ...
[INFO] [stdout] 18 |     fn message_type_id(&self) -> TypeId;
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods `is_producer` and `terminate` are never used
[INFO] [stdout]   --> src/chan.rs:37:8
[INFO] [stdout]    |
[INFO] [stdout] 35 | pub(crate) trait BusSenderClose: Any + Send + Sync {
[INFO] [stdout]    |                  -------------- methods in this trait
[INFO] [stdout] 36 |     fn upcast(&self) -> &(dyn Any + Send + Sync);
[INFO] [stdout] 37 |     fn is_producer(&self) -> bool;
[INFO] [stdout]    |        ^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 40 |     fn terminate(&self) -> Result<(), Error>;
[INFO] [stdout]    |        ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `is_producer` is never read
[INFO] [stdout]   --> src/chan.rs:44:5
[INFO] [stdout]    |
[INFO] [stdout] 43 | pub(crate) struct BusSender<M: Message> {
[INFO] [stdout]    |                   --------- field in this struct
[INFO] [stdout] 44 |     is_producer: bool,
[INFO] [stdout]    |     ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `close` is never used
[INFO] [stdout]    --> src/chan.rs:104:12
[INFO] [stdout]     |
[INFO] [stdout] 89  | impl<T> Sender<T> {
[INFO] [stdout]     | ----------------- method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 104 |     pub fn close(&self) -> Result<(), Error> {
[INFO] [stdout]     |            ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 1 previous error; 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `messagebus` (lib) due to 2 previous errors; 4 warnings emitted
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] error: this value of type `Result<(), <<B as builder::Builder<M>>::Context as Handler<M>>::Error>` has significant drop implementation that will have a different drop order from that of Edition 2021
[INFO] [stdout]    --> src/handler.rs:172:35
[INFO] [stdout]     |
[INFO] [stdout] 95  |                 let _test = spawn_counter.clone().lease_unit(|| true);
[INFO] [stdout]     |                     ----- these local bindings with significant drop implementation may observe changes in drop order under Edition 2024
[INFO] [stdout] ...
[INFO] [stdout] 172 |                 if let Err(err) = handler.finalize(bus.clone()).await {
[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: method `message_type_id` is never used
[INFO] [stdout]   --> src/chan.rs:18:8
[INFO] [stdout]    |
[INFO] [stdout] 15 | pub(crate) trait AbstractSender: Any + Send + Sync {
[INFO] [stdout]    |                  -------------- method in this trait
[INFO] [stdout] ...
[INFO] [stdout] 18 |     fn message_type_id(&self) -> TypeId;
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods `is_producer` and `terminate` are never used
[INFO] [stdout]   --> src/chan.rs:37:8
[INFO] [stdout]    |
[INFO] [stdout] 35 | pub(crate) trait BusSenderClose: Any + Send + Sync {
[INFO] [stdout]    |                  -------------- methods in this trait
[INFO] [stdout] 36 |     fn upcast(&self) -> &(dyn Any + Send + Sync);
[INFO] [stdout] 37 |     fn is_producer(&self) -> bool;
[INFO] [stdout]    |        ^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 40 |     fn terminate(&self) -> Result<(), Error>;
[INFO] [stdout]    |        ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `is_producer` is never read
[INFO] [stdout]   --> src/chan.rs:44:5
[INFO] [stdout]    |
[INFO] [stdout] 43 | pub(crate) struct BusSender<M: Message> {
[INFO] [stdout]    |                   --------- field in this struct
[INFO] [stdout] 44 |     is_producer: bool,
[INFO] [stdout]    |     ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `close` is never used
[INFO] [stdout]    --> src/chan.rs:104:12
[INFO] [stdout]     |
[INFO] [stdout] 89  | impl<T> Sender<T> {
[INFO] [stdout]     | ----------------- method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 104 |     pub fn close(&self) -> Result<(), Error> {
[INFO] [stdout]     |            ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 1 previous error; 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `messagebus` (lib test) due to 2 previous errors; 4 warnings emitted
[INFO] running `Command { std: "docker" "inspect" "fc0d54a94003703c8f23efd610ea3915770515a75f3414cce38b454e38b8ebd4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "fc0d54a94003703c8f23efd610ea3915770515a75f3414cce38b454e38b8ebd4", kill_on_drop: false }`
[INFO] [stdout] fc0d54a94003703c8f23efd610ea3915770515a75f3414cce38b454e38b8ebd4