[INFO] fetching crate ducc-serde 0.1.0...
[INFO] checking ducc-serde-0.1.0 against try#c387b04bf028733cd561d62128c8a5eee4bc1458+rustflags=-Dtail_expr_drop_order for pr-130930
[INFO] extracting crate ducc-serde 0.1.0 into /workspace/builds/worker-3-tc2/source
[INFO] validating manifest of crates.io crate ducc-serde 0.1.0 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 ducc-serde 0.1.0
[INFO] finished tweaking crates.io crate ducc-serde 0.1.0
[INFO] tweaked toml for crates.io crate ducc-serde 0.1.0 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" "+c387b04bf028733cd561d62128c8a5eee4bc1458" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 11 packages to latest compatible versions
[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] 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-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@sha256:6252d7ea7fb8caaf7af6d800c5fb250a9cd862b9a7f9508afb3c54fa7fe1102e" "/opt/rustwide/cargo-home/bin/cargo" "+c387b04bf028733cd561d62128c8a5eee4bc1458" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 86ecdeabc3586bd65e2eec30237d45ef94c1c1cb44ab56799796eef4866d2005
[INFO] running `Command { std: "docker" "start" "-a" "86ecdeabc3586bd65e2eec30237d45ef94c1c1cb44ab56799796eef4866d2005", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "86ecdeabc3586bd65e2eec30237d45ef94c1c1cb44ab56799796eef4866d2005", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "86ecdeabc3586bd65e2eec30237d45ef94c1c1cb44ab56799796eef4866d2005", kill_on_drop: false }`
[INFO] [stdout] 86ecdeabc3586bd65e2eec30237d45ef94c1c1cb44ab56799796eef4866d2005
[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@sha256:6252d7ea7fb8caaf7af6d800c5fb250a9cd862b9a7f9508afb3c54fa7fe1102e" "/opt/rustwide/cargo-home/bin/cargo" "+c387b04bf028733cd561d62128c8a5eee4bc1458" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] d5780f8c599a26216b425fc38e66af7e3a3f951762538dad4a4871e5871dfc4c
[INFO] running `Command { std: "docker" "start" "-a" "d5780f8c599a26216b425fc38e66af7e3a3f951762538dad4a4871e5871dfc4c", 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]     Checking cesu8 v1.1.0
[INFO] [stderr]    Compiling ducc-sys v0.1.2
[INFO] [stderr]     Checking ducc v0.1.5
[INFO] [stderr]     Checking ducc-serde v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] error: this value of type `std::option::Option<std::result::Result<Value<'_>, ducc::Error>>` has significant drop implementation that will have a different drop order from that of Edition 2021
[INFO] [stdout]    --> src/de.rs:117:15
[INFO] [stdout]     |
[INFO] [stdout] 113 |     fn next_element_seed<T>(&mut self, seed: T) -> Result<Option<T::Value>>
[INFO] [stdout]     |                                        ---- these local bindings with significant drop implementation may observe changes in drop order under Edition 2024
[INFO] [stdout] ...
[INFO] [stdout] 117 |         match self.0.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<Value<'_>>` has significant drop implementation that will have a different drop order from that of Edition 2021
[INFO] [stdout]    --> src/de.rs:173:15
[INFO] [stdout]     |
[INFO] [stdout] 169 |     fn next_value_seed<T>(&mut self, seed: T) -> Result<T::Value>
[INFO] [stdout]     |                                      ---- these local bindings with significant drop implementation may observe changes in drop order under Edition 2024
[INFO] [stdout] ...
[INFO] [stdout] 173 |         match self.1.take() {
[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<std::result::Result<Value<'_>, ducc::Error>>` has significant drop implementation that will have a different drop order from that of Edition 2021
[INFO] [stdout]    --> src/de.rs:117:15
[INFO] [stdout]     |
[INFO] [stdout] 113 |     fn next_element_seed<T>(&mut self, seed: T) -> Result<Option<T::Value>>
[INFO] [stdout]     |                                        ---- these local bindings with significant drop implementation may observe changes in drop order under Edition 2024
[INFO] [stdout] ...
[INFO] [stdout] 117 |         match self.0.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<Value<'_>>` has significant drop implementation that will have a different drop order from that of Edition 2021
[INFO] [stdout]    --> src/de.rs:173:15
[INFO] [stdout]     |
[INFO] [stdout] 169 |     fn next_value_seed<T>(&mut self, seed: T) -> Result<T::Value>
[INFO] [stdout]     |                                      ---- these local bindings with significant drop implementation may observe changes in drop order under Edition 2024
[INFO] [stdout] ...
[INFO] [stdout] 173 |         match self.1.take() {
[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] [stderr] error: could not compile `ducc-serde` (lib) due to 3 previous errors
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] error: aborting due to 2 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `ducc-serde` (lib test) due to 3 previous errors
[INFO] running `Command { std: "docker" "inspect" "d5780f8c599a26216b425fc38e66af7e3a3f951762538dad4a4871e5871dfc4c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d5780f8c599a26216b425fc38e66af7e3a3f951762538dad4a4871e5871dfc4c", kill_on_drop: false }`
[INFO] [stdout] d5780f8c599a26216b425fc38e66af7e3a3f951762538dad4a4871e5871dfc4c