[INFO] fetching crate list-fn 0.20.1...
[INFO] checking list-fn-0.20.1 against try#c387b04bf028733cd561d62128c8a5eee4bc1458+rustflags=-Dtail_expr_drop_order for pr-130930
[INFO] extracting crate list-fn 0.20.1 into /workspace/builds/worker-4-tc2/source
[INFO] validating manifest of crates.io crate list-fn 0.20.1 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 list-fn 0.20.1
[INFO] finished tweaking crates.io crate list-fn 0.20.1
[INFO] tweaked toml for crates.io crate list-fn 0.20.1 written to /workspace/builds/worker-4-tc2/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c387b04bf028733cd561d62128c8a5eee4bc1458" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 1 package to latest compatible version
[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-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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] 2df0fc5fef76d21dd479e37d953e4d7f4be52804e0b449c6e2163382f62c392c
[INFO] running `Command { std: "docker" "start" "-a" "2df0fc5fef76d21dd479e37d953e4d7f4be52804e0b449c6e2163382f62c392c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "2df0fc5fef76d21dd479e37d953e4d7f4be52804e0b449c6e2163382f62c392c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2df0fc5fef76d21dd479e37d953e4d7f4be52804e0b449c6e2163382f62c392c", kill_on_drop: false }`
[INFO] [stdout] 2df0fc5fef76d21dd479e37d953e4d7f4be52804e0b449c6e2163382f62c392c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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] 668895d0f8f7b62bc94fcdd46eeae9e2405d4625e1ed736839f34d00be3da7e2
[INFO] running `Command { std: "docker" "start" "-a" "668895d0f8f7b62bc94fcdd46eeae9e2405d4625e1ed736839f34d00be3da7e2", kill_on_drop: false }`
[INFO] [stderr]     Checking take_mut v0.2.2
[INFO] [stderr]     Checking list-fn v0.20.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `option::*`
[INFO] [stdout]   --> src/lib.rs:34:9
[INFO] [stdout]    |
[INFO] [stdout] 34 | pub use option::*;
[INFO] [stdout]    |         ^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `option::*`
[INFO] [stdout]   --> src/lib.rs:34:9
[INFO] [stdout]    |
[INFO] [stdout] 34 | pub use option::*;
[INFO] [stdout]    |         ^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this value of type `list::ListState<I>` has significant drop implementation that will have a different drop order from that of Edition 2021
[INFO] [stdout]   --> src/map_result.rs:28:15
[INFO] [stdout]    |
[INFO] [stdout] 27 |     fn next(self) -> ListState<Self> {
[INFO] [stdout]    |             ---- these local bindings with significant drop implementation may observe changes in drop order under Edition 2024
[INFO] [stdout] 28 |         match self.input.next() {
[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; 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `list-fn` (lib test) due to 2 previous errors; 1 warning emitted
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] error: this value of type `list::ListState<I>` has significant drop implementation that will have a different drop order from that of Edition 2021
[INFO] [stdout]   --> src/map_result.rs:28:15
[INFO] [stdout]    |
[INFO] [stdout] 27 |     fn next(self) -> ListState<Self> {
[INFO] [stdout]    |             ---- these local bindings with significant drop implementation may observe changes in drop order under Edition 2024
[INFO] [stdout] 28 |         match self.input.next() {
[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; 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `list-fn` (lib) due to 2 previous errors; 1 warning emitted
[INFO] running `Command { std: "docker" "inspect" "668895d0f8f7b62bc94fcdd46eeae9e2405d4625e1ed736839f34d00be3da7e2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "668895d0f8f7b62bc94fcdd46eeae9e2405d4625e1ed736839f34d00be3da7e2", kill_on_drop: false }`
[INFO] [stdout] 668895d0f8f7b62bc94fcdd46eeae9e2405d4625e1ed736839f34d00be3da7e2