[INFO] fetching crate serde-pickle-rs 1.0.2... [INFO] checking serde-pickle-rs-1.0.2 against try#7014e13d5becc920d4bea3cd87942c8a13d359bf+rustflags=-Dtail_expr_drop_order for pr-129864 [INFO] extracting crate serde-pickle-rs 1.0.2 into /workspace/builds/worker-2-tc2/source [INFO] validating manifest of crates.io crate serde-pickle-rs 1.0.2 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] removed /workspace/builds/worker-2-tc2/source/rust-toolchain [INFO] started tweaking crates.io crate serde-pickle-rs 1.0.2 [INFO] finished tweaking crates.io crate serde-pickle-rs 1.0.2 [INFO] tweaked toml for crates.io crate serde-pickle-rs 1.0.2 written to /workspace/builds/worker-2-tc2/source/Cargo.toml [INFO] crate crates.io crate serde-pickle-rs 1.0.2 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" "+7014e13d5becc920d4bea3cd87942c8a13d359bf" "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:ceb6ea022f8a89cebbe621bb4987e73a935bd40dfbb726f832cfff4742a5b95a" "/opt/rustwide/cargo-home/bin/cargo" "+7014e13d5becc920d4bea3cd87942c8a13d359bf" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] adbb0cd701f873a1dc30373d7bccfec040dc2769bdd2b9d103fbed2c18a30786 [INFO] running `Command { std: "docker" "start" "-a" "adbb0cd701f873a1dc30373d7bccfec040dc2769bdd2b9d103fbed2c18a30786", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "adbb0cd701f873a1dc30373d7bccfec040dc2769bdd2b9d103fbed2c18a30786", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "adbb0cd701f873a1dc30373d7bccfec040dc2769bdd2b9d103fbed2c18a30786", kill_on_drop: false }` [INFO] [stdout] adbb0cd701f873a1dc30373d7bccfec040dc2769bdd2b9d103fbed2c18a30786 [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] 48b262bfe43064f446328805caad624ef6942f4936a21597eff3acc4d658c3e1 [INFO] running `Command { std: "docker" "start" "-a" "48b262bfe43064f446328805caad624ef6942f4936a21597eff3acc4d658c3e1", kill_on_drop: false }` [INFO] [stderr] Compiling proc-macro2 v1.0.69 [INFO] [stderr] Compiling num-traits v0.2.17 [INFO] [stderr] Compiling serde v1.0.192 [INFO] [stderr] Compiling libc v0.2.150 [INFO] [stderr] Checking aho-corasick v1.1.2 [INFO] [stderr] Checking regex-syntax v0.8.2 [INFO] [stderr] Compiling serde_json v1.0.108 [INFO] [stderr] Compiling num-integer v0.1.45 [INFO] [stderr] Checking ppv-lite86 v0.2.17 [INFO] [stderr] Checking clap_builder v4.4.8 [INFO] [stderr] Compiling num-bigint v0.4.4 [INFO] [stderr] Checking is-terminal v0.4.9 [INFO] [stderr] Checking iter-read v0.3.1 [INFO] [stderr] Compiling quote v1.0.33 [INFO] [stderr] Checking getrandom v0.2.10 [INFO] [stderr] Compiling syn v2.0.39 [INFO] [stderr] Checking rand_core v0.6.4 [INFO] [stderr] Checking rand_chacha v0.3.1 [INFO] [stderr] Checking plotters v0.3.5 [INFO] [stderr] Checking regex-automata v0.4.3 [INFO] [stderr] Checking rand v0.8.5 [INFO] [stderr] Checking clap v4.4.8 [INFO] [stderr] Compiling serde_derive v1.0.192 [INFO] [stderr] Checking regex v1.10.2 [INFO] [stderr] Checking env_logger v0.8.4 [INFO] [stderr] Checking quickcheck v1.0.3 [INFO] [stderr] Checking ciborium v0.2.1 [INFO] [stderr] Checking serde-pickle-rs v1.0.2 (/opt/rustwide/workdir) [INFO] [stdout] warning: unexpected `cfg` condition value: `unstable` [INFO] [stdout] --> src/lib.rs:70:13 [INFO] [stdout] | [INFO] [stdout] 70 | #![cfg_attr(feature = "unstable", feature(test))] [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^ help: remove the condition [INFO] [stdout] | [INFO] [stdout] = note: no expected values for `feature` [INFO] [stdout] = help: consider adding `unstable` as a feature in `Cargo.toml` [INFO] [stdout] = note: see for more information about checking conditional configuration [INFO] [stdout] = note: `#[warn(unexpected_cfgs)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: this value of type `std::option::Option` has significant drop implementation that will have a different drop order from that of Edition 2021 [INFO] [stdout] --> src/de.rs:1338:15 [INFO] [stdout] | [INFO] [stdout] 1336 | seed: T, [INFO] [stdout] | ---- these local bindings with significant drop implementation may observe changes in drop order under Edition 2024 [INFO] [stdout] 1337 | ) -> Result> { [INFO] [stdout] 1338 | 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 [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<(de::Value, de::Value)>` has significant drop implementation that will have a different drop order from that of Edition 2021 [INFO] [stdout] --> src/de.rs:1364:15 [INFO] [stdout] | [INFO] [stdout] 1363 | fn next_key_seed>(&mut self, seed: T) -> Result> { [INFO] [stdout] | ---- these local bindings with significant drop implementation may observe changes in drop order under Edition 2024 [INFO] [stdout] 1364 | 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 [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: this value of type `std::option::Option` has significant drop implementation that will have a different drop order from that of Edition 2021 [INFO] [stdout] --> src/value_impls.rs:333:15 [INFO] [stdout] | [INFO] [stdout] 331 | seed: T, [INFO] [stdout] | ---- these local bindings with significant drop implementation may observe changes in drop order under Edition 2024 [INFO] [stdout] 332 | ) -> Result<(T::Value, Self::Variant)> { [INFO] [stdout] 333 | match self.value.take() { [INFO] [stdout] | ^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = warning: this changes meaning in Rust 2024 [INFO] [stdout] = note: for more information, see issue #123739 [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: this value of type `std::option::Option` has significant drop implementation that will have a different drop order from that of Edition 2021 [INFO] [stdout] --> src/value_impls.rs:413:15 [INFO] [stdout] | [INFO] [stdout] 411 | seed: T, [INFO] [stdout] | ---- these local bindings with significant drop implementation may observe changes in drop order under Edition 2024 [INFO] [stdout] 412 | ) -> Result> { [INFO] [stdout] 413 | 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 [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: this value of type `std::option::Option<(HashableValue, value::Value)>` has significant drop implementation that will have a different drop order from that of Edition 2021 [INFO] [stdout] --> src/value_impls.rs:439:15 [INFO] [stdout] | [INFO] [stdout] 438 | fn next_key_seed>(&mut self, seed: T) -> Result> { [INFO] [stdout] | ---- these local bindings with significant drop implementation may observe changes in drop order under Edition 2024 [INFO] [stdout] 439 | 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 [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variant `PersId` is never constructed [INFO] [stdout] --> src/de.rs:72:5 [INFO] [stdout] | [INFO] [stdout] 56 | enum Value { [INFO] [stdout] | ----- variant in this enum [INFO] [stdout] ... [INFO] [stdout] 72 | PersId(Box), [INFO] [stdout] | ^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `Value` has derived impls for the traits `Debug` and `Clone`, but these are intentionally ignored during dead code analysis [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: aborting due to 5 previous errors; 2 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] error: could not compile `serde-pickle-rs` (lib) due to 6 previous errors; 2 warnings emitted [INFO] [stderr] warning: build failed, waiting for other jobs to finish... [INFO] running `Command { std: "docker" "inspect" "48b262bfe43064f446328805caad624ef6942f4936a21597eff3acc4d658c3e1", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "48b262bfe43064f446328805caad624ef6942f4936a21597eff3acc4d658c3e1", kill_on_drop: false }` [INFO] [stdout] 48b262bfe43064f446328805caad624ef6942f4936a21597eff3acc4d658c3e1