[INFO] fetching crate rust-snap7 1.142.0...
[INFO] checking rust-snap7-1.142.0 against try#c387b04bf028733cd561d62128c8a5eee4bc1458+rustflags=-Dtail_expr_drop_order for pr-130930
[INFO] extracting crate rust-snap7 1.142.0 into /workspace/builds/worker-0-tc2/source
[INFO] validating manifest of crates.io crate rust-snap7 1.142.0 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 rust-snap7 1.142.0
[INFO] finished tweaking crates.io crate rust-snap7 1.142.0
[INFO] tweaked toml for crates.io crate rust-snap7 1.142.0 written to /workspace/builds/worker-0-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]     Blocking waiting for file lock on package cache
[INFO] [stderr]      Locking 41 packages to latest compatible versions
[INFO] [stderr]       Adding windows-core v0.52.0 (available: v0.58.0)
[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] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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] 9ebd5b7d36e719ba813304d49888a02070bb7601c68163833024f9486950f85f
[INFO] running `Command { std: "docker" "start" "-a" "9ebd5b7d36e719ba813304d49888a02070bb7601c68163833024f9486950f85f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "9ebd5b7d36e719ba813304d49888a02070bb7601c68163833024f9486950f85f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9ebd5b7d36e719ba813304d49888a02070bb7601c68163833024f9486950f85f", kill_on_drop: false }`
[INFO] [stdout] 9ebd5b7d36e719ba813304d49888a02070bb7601c68163833024f9486950f85f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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] 0f94d614e9b9e23e6a8c2ddbb3a1be7c4bc5a0ee9a10b3053c84838a6bbbcdaf
[INFO] running `Command { std: "docker" "start" "-a" "0f94d614e9b9e23e6a8c2ddbb3a1be7c4bc5a0ee9a10b3053c84838a6bbbcdaf", kill_on_drop: false }`
[INFO] [stderr]    Compiling num-traits v0.2.19
[INFO] [stderr]     Checking memchr v2.7.4
[INFO] [stderr]    Compiling shlex v1.3.0
[INFO] [stderr]    Compiling cc v1.1.22
[INFO] [stderr]     Checking aho-corasick v1.1.3
[INFO] [stderr]    Compiling rust-snap7 v1.142.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Checking chrono v0.4.38
[INFO] [stderr]     Checking regex-automata v0.4.7
[INFO] [stderr]     Checking regex v1.10.6
[INFO] [stdout] error: this value of type `std::result::Result<String, anyhow::Error>` has significant drop implementation that will have a different drop order from that of Edition 2021
[INFO] [stdout]    --> src/server.rs:837:35
[INFO] [stdout]     |
[INFO] [stdout] 834 |                 let mut data = tee.lock().unwrap();
[INFO] [stdout]     |                     -------- these local bindings with significant drop implementation may observe changes in drop order under Edition 2024
[INFO] [stdout] ...
[INFO] [stdout] 837 |                 if let Ok(text) = S7Server::event_text(p_event) {
[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 `rust-snap7` (lib test) due to 2 previous errors
[INFO] running `Command { std: "docker" "inspect" "0f94d614e9b9e23e6a8c2ddbb3a1be7c4bc5a0ee9a10b3053c84838a6bbbcdaf", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0f94d614e9b9e23e6a8c2ddbb3a1be7c4bc5a0ee9a10b3053c84838a6bbbcdaf", kill_on_drop: false }`
[INFO] [stdout] 0f94d614e9b9e23e6a8c2ddbb3a1be7c4bc5a0ee9a10b3053c84838a6bbbcdaf