[INFO] fetching crate lightproc 0.3.6-alpha.0...
[INFO] checking lightproc-0.3.6-alpha.0 against try#c387b04bf028733cd561d62128c8a5eee4bc1458+rustflags=-Dtail_expr_drop_order for pr-130930
[INFO] extracting crate lightproc 0.3.6-alpha.0 into /workspace/builds/worker-2-tc2/source
[INFO] validating manifest of crates.io crate lightproc 0.3.6-alpha.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 lightproc 0.3.6-alpha.0
[INFO] finished tweaking crates.io crate lightproc 0.3.6-alpha.0
[INFO] tweaked toml for crates.io crate lightproc 0.3.6-alpha.0 written to /workspace/builds/worker-2-tc2/source/Cargo.toml
[INFO] crate crates.io crate lightproc 0.3.6-alpha.0 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" "+c387b04bf028733cd561d62128c8a5eee4bc1458" "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@sha256:6252d7ea7fb8caaf7af6d800c5fb250a9cd862b9a7f9508afb3c54fa7fe1102e" "/opt/rustwide/cargo-home/bin/cargo" "+c387b04bf028733cd561d62128c8a5eee4bc1458" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] ebc22cbc9683f8a6f6fe3cfb562bf0ed264f227281e539b199842cc3f47deea8
[INFO] running `Command { std: "docker" "start" "-a" "ebc22cbc9683f8a6f6fe3cfb562bf0ed264f227281e539b199842cc3f47deea8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "ebc22cbc9683f8a6f6fe3cfb562bf0ed264f227281e539b199842cc3f47deea8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ebc22cbc9683f8a6f6fe3cfb562bf0ed264f227281e539b199842cc3f47deea8", kill_on_drop: false }`
[INFO] [stdout] ebc22cbc9683f8a6f6fe3cfb562bf0ed264f227281e539b199842cc3f47deea8
[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@sha256:6252d7ea7fb8caaf7af6d800c5fb250a9cd862b9a7f9508afb3c54fa7fe1102e" "/opt/rustwide/cargo-home/bin/cargo" "+c387b04bf028733cd561d62128c8a5eee4bc1458" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 72baf294f56ab2519f6a30d5f35048f25b0e2238226268f06d07b238ca6e93d5
[INFO] running `Command { std: "docker" "start" "-a" "72baf294f56ab2519f6a30d5f35048f25b0e2238226268f06d07b238ca6e93d5", kill_on_drop: false }`
[INFO] [stderr]    Compiling crossbeam-utils v0.8.5
[INFO] [stderr]    Compiling crossbeam-epoch v0.9.5
[INFO] [stderr]    Compiling futures-task v0.3.19
[INFO] [stderr]    Compiling futures-core v0.3.19
[INFO] [stderr]    Compiling futures-util v0.3.19
[INFO] [stderr]    Compiling memoffset v0.6.5
[INFO] [stderr]    Compiling crossbeam-queue v0.3.2
[INFO] [stderr]     Checking crossbeam-channel v0.5.1
[INFO] [stderr]     Checking lightproc v0.3.6-alpha.0 (/opt/rustwide/workdir)
[INFO] [stdout] error: this value of type `MutexGuard<'_, S>` has significant drop implementation that will have a different drop order from that of Edition 2021
[INFO] [stdout]    --> src/proc_stack.rs:183:10
[INFO] [stdout]     |
[INFO] [stdout] 181 |         let state = self.state.clone();
[INFO] [stdout]     |             ----- these local bindings with significant drop implementation may observe changes in drop order under Edition 2024
[INFO] [stdout] 182 |         let s = unsafe { &*(&state as *const ProcState as *const Arc<Mutex<S>>) };
[INFO] [stdout] 183 |         *s.lock().unwrap()
[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 `lightproc` (lib) due to 2 previous errors
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] running `Command { std: "docker" "inspect" "72baf294f56ab2519f6a30d5f35048f25b0e2238226268f06d07b238ca6e93d5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "72baf294f56ab2519f6a30d5f35048f25b0e2238226268f06d07b238ca6e93d5", kill_on_drop: false }`
[INFO] [stdout] 72baf294f56ab2519f6a30d5f35048f25b0e2238226268f06d07b238ca6e93d5