[INFO] fetching crate triple_arena 0.13.0...
[INFO] checking triple_arena-0.13.0 against try#7014e13d5becc920d4bea3cd87942c8a13d359bf+rustflags=-Dtail_expr_drop_order for pr-129864
[INFO] extracting crate triple_arena 0.13.0 into /workspace/builds/worker-3-tc2/source
[INFO] validating manifest of crates.io crate triple_arena 0.13.0 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 triple_arena 0.13.0
[INFO] finished tweaking crates.io crate triple_arena 0.13.0
[INFO] tweaked toml for crates.io crate triple_arena 0.13.0 written to /workspace/builds/worker-3-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]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]      Locking 10 packages to latest compatible versions
[INFO] [stderr]       Adding base64 v0.21.7 (available: v0.22.1)
[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-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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] 585f74114744920026def89dd06e15fff799de68c175c37d5e052c0c4d2247b4
[INFO] running `Command { std: "docker" "start" "-a" "585f74114744920026def89dd06e15fff799de68c175c37d5e052c0c4d2247b4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "585f74114744920026def89dd06e15fff799de68c175c37d5e052c0c4d2247b4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "585f74114744920026def89dd06e15fff799de68c175c37d5e052c0c4d2247b4", kill_on_drop: false }`
[INFO] [stdout] 585f74114744920026def89dd06e15fff799de68c175c37d5e052c0c4d2247b4
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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] cf1bc4c867359a7b7af62c258e6bb647f74c36eb529af24ad9d3f3ab06a156b7
[INFO] running `Command { std: "docker" "start" "-a" "cf1bc4c867359a7b7af62c258e6bb647f74c36eb529af24ad9d3f3ab06a156b7", kill_on_drop: false }`
[INFO] [stderr]     Checking recasting v0.2.1
[INFO] [stderr]     Checking bitflags v2.6.0
[INFO] [stderr]     Checking triple_arena v0.13.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Checking ron v0.8.1
[INFO] [stdout] error: this value of type `Result<P, T>` has significant drop implementation that will have a different drop order from that of Edition 2021
[INFO] [stdout]    --> src/traits/arena_trait.rs:126:24
[INFO] [stdout]     |
[INFO] [stdout] 125 |     fn insert(&mut self, link: Self::E) -> P {
[INFO] [stdout]     |                          ---- these local bindings with significant drop implementation may observe changes in drop order under Edition 2024
[INFO] [stdout] 126 |         if let Ok(p) = self.insert(link.prev_next(), link.t) {
[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: this value of type `Result<P, T>` has significant drop implementation that will have a different drop order from that of Edition 2021
[INFO] [stdout]    --> src/traits/arena_trait.rs:191:24
[INFO] [stdout]     |
[INFO] [stdout] 190 |     fn insert(&mut self, link: Self::E) -> P {
[INFO] [stdout]     |                          ---- these local bindings with significant drop implementation may observe changes in drop order under Edition 2024
[INFO] [stdout] 191 |         if let Ok(p) = self.insert(link.prev_next(), link.t) {
[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] 
[INFO] [stdout] 
[INFO] [stdout] error: this value of type `(P, Option<(K, V)>)` has significant drop implementation that will have a different drop order from that of Edition 2021
[INFO] [stdout]    --> src/traits/arena_trait.rs:316:9
[INFO] [stdout]     |
[INFO] [stdout] 315 |     fn insert(&mut self, e: Self::E) -> P {
[INFO] [stdout]     |                          - these local bindings with significant drop implementation may observe changes in drop order under Edition 2024
[INFO] [stdout] 316 |         self.insert(e.0, e.1).0
[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] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 3 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `triple_arena` (lib) due to 4 previous errors
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] running `Command { std: "docker" "inspect" "cf1bc4c867359a7b7af62c258e6bb647f74c36eb529af24ad9d3f3ab06a156b7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "cf1bc4c867359a7b7af62c258e6bb647f74c36eb529af24ad9d3f3ab06a156b7", kill_on_drop: false }`
[INFO] [stdout] cf1bc4c867359a7b7af62c258e6bb647f74c36eb529af24ad9d3f3ab06a156b7