[INFO] fetching crate serde-hjson 1.0.0...
[INFO] checking serde-hjson-1.0.0 against try#7014e13d5becc920d4bea3cd87942c8a13d359bf+rustflags=-Dtail_expr_drop_order for pr-129864
[INFO] extracting crate serde-hjson 1.0.0 into /workspace/builds/worker-2-tc2/source
[INFO] validating manifest of crates.io crate serde-hjson 1.0.0 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 serde-hjson 1.0.0
[INFO] finished tweaking crates.io crate serde-hjson 1.0.0
[INFO] tweaked toml for crates.io crate serde-hjson 1.0.0 written to /workspace/builds/worker-2-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]     Updating crates.io index
[INFO] [stderr]      Locking 15 packages to latest compatible versions
[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] [stderr] warning: no edition set: defaulting to the 2015 edition while the latest is 2021
[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:ceb6ea022f8a89cebbe621bb4987e73a935bd40dfbb726f832cfff4742a5b95a" "/opt/rustwide/cargo-home/bin/cargo" "+7014e13d5becc920d4bea3cd87942c8a13d359bf" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] ad89b80127b841eb912f6c685fb070bd9cb5905d02d781968fbdb831d10ad7fe
[INFO] running `Command { std: "docker" "start" "-a" "ad89b80127b841eb912f6c685fb070bd9cb5905d02d781968fbdb831d10ad7fe", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "ad89b80127b841eb912f6c685fb070bd9cb5905d02d781968fbdb831d10ad7fe", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ad89b80127b841eb912f6c685fb070bd9cb5905d02d781968fbdb831d10ad7fe", kill_on_drop: false }`
[INFO] [stdout] ad89b80127b841eb912f6c685fb070bd9cb5905d02d781968fbdb831d10ad7fe
[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:ceb6ea022f8a89cebbe621bb4987e73a935bd40dfbb726f832cfff4742a5b95a" "/opt/rustwide/cargo-home/bin/cargo" "+7014e13d5becc920d4bea3cd87942c8a13d359bf" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 1ceba29b3d3cac261a178b88371dcb37456dba0ff16c6e91b5fc308b7bb6f023
[INFO] running `Command { std: "docker" "start" "-a" "1ceba29b3d3cac261a178b88371dcb37456dba0ff16c6e91b5fc308b7bb6f023", kill_on_drop: false }`
[INFO] [stderr] warning: no edition set: defaulting to the 2015 edition while the latest is 2021
[INFO] [stderr]    Compiling serde v1.0.210
[INFO] [stderr]    Compiling num-traits v0.2.19
[INFO] [stderr]     Checking aho-corasick v1.1.3
[INFO] [stderr]     Checking regex-automata v0.4.7
[INFO] [stderr]     Checking regex v1.10.6
[INFO] [stderr]     Checking linked-hash-map v0.5.6
[INFO] [stderr]     Checking serde-hjson v1.0.0 (/opt/rustwide/workdir)
[INFO] [stdout] error: this value of type `std::option::Option<Value>` has significant drop implementation that will have a different drop order from that of Edition 2021
[INFO] [stdout]     --> src/value.rs:1100:15
[INFO] [stdout]      |
[INFO] [stdout] 1096 |     fn next_element_seed<T>(&mut self, seed: T) -> Result<Option<T::Value>, Self::Error>
[INFO] [stdout]      |                                        ---- these local bindings with significant drop implementation may observe changes in drop order under Edition 2024
[INFO] [stdout] ...
[INFO] [stdout] 1100 |         match self.iter.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: this value of type `std::option::Option<(std::string::String, Value)>` has significant drop implementation that will have a different drop order from that of Edition 2021
[INFO] [stdout]     --> src/value.rs:1126:15
[INFO] [stdout]      |
[INFO] [stdout] 1122 |     fn next_key_seed<K>(&mut self, seed: K) -> Result<Option<K::Value>>
[INFO] [stdout]      |                                    ---- these local bindings with significant drop implementation may observe changes in drop order under Edition 2024
[INFO] [stdout] ...
[INFO] [stdout] 1126 |         match self.iter.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] 
[INFO] [stdout] 
[INFO] [stdout] error: this value of type `std::option::Option<Value>` has significant drop implementation that will have a different drop order from that of Edition 2021
[INFO] [stdout]     --> src/value.rs:1100:15
[INFO] [stdout]      |
[INFO] [stdout] 1096 |     fn next_element_seed<T>(&mut self, seed: T) -> Result<Option<T::Value>, Self::Error>
[INFO] [stdout]      |                                        ---- these local bindings with significant drop implementation may observe changes in drop order under Edition 2024
[INFO] [stdout] ...
[INFO] [stdout] 1100 |         match self.iter.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: this value of type `std::option::Option<(std::string::String, Value)>` has significant drop implementation that will have a different drop order from that of Edition 2021
[INFO] [stdout]     --> src/value.rs:1126:15
[INFO] [stdout]      |
[INFO] [stdout] 1122 |     fn next_key_seed<K>(&mut self, seed: K) -> Result<Option<K::Value>>
[INFO] [stdout]      |                                    ---- these local bindings with significant drop implementation may observe changes in drop order under Edition 2024
[INFO] [stdout] ...
[INFO] [stdout] 1126 |         match self.iter.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] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 2 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 2 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `serde-hjson` (lib test) due to 3 previous errors
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: could not compile `serde-hjson` (lib) due to 3 previous errors
[INFO] running `Command { std: "docker" "inspect" "1ceba29b3d3cac261a178b88371dcb37456dba0ff16c6e91b5fc308b7bb6f023", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1ceba29b3d3cac261a178b88371dcb37456dba0ff16c6e91b5fc308b7bb6f023", kill_on_drop: false }`
[INFO] [stdout] 1ceba29b3d3cac261a178b88371dcb37456dba0ff16c6e91b5fc308b7bb6f023