[INFO] fetching crate ad-hoc-iterator 0.2.3...
[INFO] checking ad-hoc-iterator-0.2.3 against try#4d98531622e1718ae0bc3c7a1ab9cd8938428452+rustflags=-Dtail_expr_drop_order for pr-129604
[INFO] extracting crate ad-hoc-iterator 0.2.3 into /workspace/builds/worker-6-tc2/source
[INFO] validating manifest of crates.io crate ad-hoc-iterator 0.2.3 on toolchain 4d98531622e1718ae0bc3c7a1ab9cd8938428452
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+4d98531622e1718ae0bc3c7a1ab9cd8938428452" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate ad-hoc-iterator 0.2.3
[INFO] finished tweaking crates.io crate ad-hoc-iterator 0.2.3
[INFO] tweaked toml for crates.io crate ad-hoc-iterator 0.2.3 written to /workspace/builds/worker-6-tc2/source/Cargo.toml
[INFO] crate crates.io crate ad-hoc-iterator 0.2.3 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" "+4d98531622e1718ae0bc3c7a1ab9cd8938428452" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[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@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+4d98531622e1718ae0bc3c7a1ab9cd8938428452" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 630212a98c600f2ec8c1c514f693cf07339e2a0f22b0b9b6ef4df2689c29bf7d
[INFO] running `Command { std: "docker" "start" "-a" "630212a98c600f2ec8c1c514f693cf07339e2a0f22b0b9b6ef4df2689c29bf7d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "630212a98c600f2ec8c1c514f693cf07339e2a0f22b0b9b6ef4df2689c29bf7d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "630212a98c600f2ec8c1c514f693cf07339e2a0f22b0b9b6ef4df2689c29bf7d", kill_on_drop: false }`
[INFO] [stdout] 630212a98c600f2ec8c1c514f693cf07339e2a0f22b0b9b6ef4df2689c29bf7d
[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@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+4d98531622e1718ae0bc3c7a1ab9cd8938428452" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 213a03dfd5f917b3d6b5032d7551eb0466f1d5fcd0a3776999445956ca3d46bf
[INFO] running `Command { std: "docker" "start" "-a" "213a03dfd5f917b3d6b5032d7551eb0466f1d5fcd0a3776999445956ca3d46bf", kill_on_drop: false }`
[INFO] [stderr]     Checking ad-hoc-iterator v0.2.3 (/opt/rustwide/workdir)
[INFO] [stdout] error: these values and local bindings have significant drop implementation that will have a different drop order from that of Edition 2021
[INFO] [stdout]    --> src/lib.rs:108:23
[INFO] [stdout]     |
[INFO] [stdout] 107 | pub fn iterator_from<T, F: FnMut() -> Option<T>>(f: F) -> impl Iterator<Item = T> {
[INFO] [stdout]     |                                                  ---- these values have significant drop implementation and will observe changes in drop order under Edition 2024
[INFO] [stdout] 108 |     __ClosureIterator(Some(f))
[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: these values and local bindings have significant drop implementation that will have a different drop order from that of Edition 2021
[INFO] [stdout]    --> src/lib.rs:108:23
[INFO] [stdout]     |
[INFO] [stdout] 107 | pub fn iterator_from<T, F: FnMut() -> Option<T>>(f: F) -> impl Iterator<Item = T> {
[INFO] [stdout]     |                                                  ---- these values have significant drop implementation and will observe changes in drop order under Edition 2024
[INFO] [stdout] 108 |     __ClosureIterator(Some(f))
[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] [stdout] error: aborting due to 1 previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `ad-hoc-iterator` (lib) due to 2 previous errors
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: could not compile `ad-hoc-iterator` (lib test) due to 2 previous errors
[INFO] running `Command { std: "docker" "inspect" "213a03dfd5f917b3d6b5032d7551eb0466f1d5fcd0a3776999445956ca3d46bf", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "213a03dfd5f917b3d6b5032d7551eb0466f1d5fcd0a3776999445956ca3d46bf", kill_on_drop: false }`
[INFO] [stdout] 213a03dfd5f917b3d6b5032d7551eb0466f1d5fcd0a3776999445956ca3d46bf