[INFO] fetching crate ntest 0.9.3...
[INFO] checking ntest-0.9.3 against try#7014e13d5becc920d4bea3cd87942c8a13d359bf+rustflags=-Dtail_expr_drop_order for pr-129864
[INFO] extracting crate ntest 0.9.3 into /workspace/builds/worker-2-tc2/source
[INFO] validating manifest of crates.io crate ntest 0.9.3 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 ntest 0.9.3
[INFO] finished tweaking crates.io crate ntest 0.9.3
[INFO] tweaked toml for crates.io crate ntest 0.9.3 written to /workspace/builds/worker-2-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 36 packages to latest compatible versions
[INFO] [stderr]       Adding syn v1.0.109 (available: v2.0.77)
[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-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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] 9f4d0967a5aa5b9929dc57a7e9b61840c56f50b09bdb79acfd835e80aaeddbb0
[INFO] running `Command { std: "docker" "start" "-a" "9f4d0967a5aa5b9929dc57a7e9b61840c56f50b09bdb79acfd835e80aaeddbb0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "9f4d0967a5aa5b9929dc57a7e9b61840c56f50b09bdb79acfd835e80aaeddbb0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9f4d0967a5aa5b9929dc57a7e9b61840c56f50b09bdb79acfd835e80aaeddbb0", kill_on_drop: false }`
[INFO] [stdout] 9f4d0967a5aa5b9929dc57a7e9b61840c56f50b09bdb79acfd835e80aaeddbb0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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] f6ef333309922be413a0eeb9627e40f5718de6a2d0aefe21e21e789db6cf1805
[INFO] running `Command { std: "docker" "start" "-a" "f6ef333309922be413a0eeb9627e40f5718de6a2d0aefe21e21e789db6cf1805", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]    Compiling equivalent v1.0.1
[INFO] [stderr]    Compiling hashbrown v0.14.5
[INFO] [stderr]    Compiling winnow v0.6.20
[INFO] [stderr]    Compiling toml_datetime v0.6.8
[INFO] [stderr]    Compiling syn v2.0.77
[INFO] [stderr]    Compiling indexmap v2.5.0
[INFO] [stderr]    Compiling toml_edit v0.22.22
[INFO] [stderr]    Compiling proc-macro-crate v3.2.0
[INFO] [stderr]    Compiling ntest_test_cases v0.9.3
[INFO] [stderr]    Compiling tokio-macros v2.4.0
[INFO] [stderr]    Compiling ntest_timeout v0.9.3
[INFO] [stderr]     Checking tokio v1.40.0
[INFO] [stderr]     Checking ntest v0.9.3 (/opt/rustwide/workdir)
[INFO] [stdout] error: this value of type `Result<T, RecvTimeoutError>` has significant drop implementation that will have a different drop order from that of Edition 2021
[INFO] [stdout]   --> src/lib.rs:30:11
[INFO] [stdout]    |
[INFO] [stdout] 28 |     let (sender, receiver) = mpsc::channel();
[INFO] [stdout]    |                  -------- these local bindings with significant drop implementation may observe changes in drop order under Edition 2024
[INFO] [stdout] 29 |     thread::spawn(move || if let Ok(()) = sender.send(code()) {});
[INFO] [stdout] 30 |     match receiver.recv_timeout(Duration::from_millis(timeout_ms)) {
[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 `ntest` (lib) due to 2 previous errors
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] running `Command { std: "docker" "inspect" "f6ef333309922be413a0eeb9627e40f5718de6a2d0aefe21e21e789db6cf1805", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f6ef333309922be413a0eeb9627e40f5718de6a2d0aefe21e21e789db6cf1805", kill_on_drop: false }`
[INFO] [stdout] f6ef333309922be413a0eeb9627e40f5718de6a2d0aefe21e21e789db6cf1805