[INFO] fetching crate fumio-pool 0.1.0...
[INFO] checking fumio-pool-0.1.0 against try#7014e13d5becc920d4bea3cd87942c8a13d359bf+rustflags=-Dtail_expr_drop_order for pr-129864
[INFO] extracting crate fumio-pool 0.1.0 into /workspace/builds/worker-6-tc2/source
[INFO] validating manifest of crates.io crate fumio-pool 0.1.0 on toolchain 7014e13d5becc920d4bea3cd87942c8a13d359bf
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+7014e13d5becc920d4bea3cd87942c8a13d359bf" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate fumio-pool 0.1.0
[INFO] finished tweaking crates.io crate fumio-pool 0.1.0
[INFO] tweaked toml for crates.io crate fumio-pool 0.1.0 written to /workspace/builds/worker-6-tc2/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+7014e13d5becc920d4bea3cd87942c8a13d359bf" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 10 packages to latest compatible versions
[INFO] [stderr]       Adding hermit-abi v0.3.9 (available: v0.4.0)
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+7014e13d5becc920d4bea3cd87942c8a13d359bf" "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:ceb6ea022f8a89cebbe621bb4987e73a935bd40dfbb726f832cfff4742a5b95a" "/opt/rustwide/cargo-home/bin/cargo" "+7014e13d5becc920d4bea3cd87942c8a13d359bf" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 9ebe1882340ad913dede815ff93c3fca00c524df5bf27b476ec9f6f3ec838013
[INFO] running `Command { std: "docker" "start" "-a" "9ebe1882340ad913dede815ff93c3fca00c524df5bf27b476ec9f6f3ec838013", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "9ebe1882340ad913dede815ff93c3fca00c524df5bf27b476ec9f6f3ec838013", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9ebe1882340ad913dede815ff93c3fca00c524df5bf27b476ec9f6f3ec838013", kill_on_drop: false }`
[INFO] [stdout] 9ebe1882340ad913dede815ff93c3fca00c524df5bf27b476ec9f6f3ec838013
[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:ceb6ea022f8a89cebbe621bb4987e73a935bd40dfbb726f832cfff4742a5b95a" "/opt/rustwide/cargo-home/bin/cargo" "+7014e13d5becc920d4bea3cd87942c8a13d359bf" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] cfb5d79750652771fdaf13b1c47ea438b3d8fb386dd173552ae9a1d8fdb0d9ae
[INFO] running `Command { std: "docker" "start" "-a" "cfb5d79750652771fdaf13b1c47ea438b3d8fb386dd173552ae9a1d8fdb0d9ae", kill_on_drop: false }`
[INFO] [stderr]     Checking futures-core-preview v0.3.0-alpha.19
[INFO] [stderr]     Checking num_cpus v1.16.0
[INFO] [stderr]     Checking futures-util-preview v0.3.0-alpha.19
[INFO] [stderr]     Checking futures-executor-preview v0.3.0-alpha.19
[INFO] [stderr]     Checking fumio-utils v0.1.0
[INFO] [stderr]     Checking fumio-pool v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] error: this value of type `Option<Rc<LocalTaskList>>` has significant drop implementation that will have a different drop order from that of Edition 2021
[INFO] [stdout]    --> src/pool.rs:186:28
[INFO] [stdout]     |
[INFO] [stdout] 184 |         future: LocalFutureObj<'static, ()>,
[INFO] [stdout]     |         ------ these local bindings with significant drop implementation may observe changes in drop order under Edition 2024
[INFO] [stdout] 185 |     ) -> Result<(), SpawnError> {
[INFO] [stdout] 186 |         if let Some(task_list) = self.task_list.upgrade() {
[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] error: aborting due to 1 previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `fumio-pool` (lib) due to 2 previous errors
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] error: this value of type `Option<Rc<LocalTaskList>>` has significant drop implementation that will have a different drop order from that of Edition 2021
[INFO] [stdout]    --> src/pool.rs:186:28
[INFO] [stdout]     |
[INFO] [stdout] 184 |         future: LocalFutureObj<'static, ()>,
[INFO] [stdout]     |         ------ these local bindings with significant drop implementation may observe changes in drop order under Edition 2024
[INFO] [stdout] 185 |     ) -> Result<(), SpawnError> {
[INFO] [stdout] 186 |         if let Some(task_list) = self.task_list.upgrade() {
[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] error: aborting due to 1 previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `fumio-pool` (lib test) due to 2 previous errors
[INFO] running `Command { std: "docker" "inspect" "cfb5d79750652771fdaf13b1c47ea438b3d8fb386dd173552ae9a1d8fdb0d9ae", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "cfb5d79750652771fdaf13b1c47ea438b3d8fb386dd173552ae9a1d8fdb0d9ae", kill_on_drop: false }`
[INFO] [stdout] cfb5d79750652771fdaf13b1c47ea438b3d8fb386dd173552ae9a1d8fdb0d9ae