[INFO] fetching crate dync 0.5.7... [INFO] checking dync-0.5.7 against try#c387b04bf028733cd561d62128c8a5eee4bc1458+rustflags=-Dtail_expr_drop_order for pr-130930 [INFO] extracting crate dync 0.5.7 into /workspace/builds/worker-5-tc2/source [INFO] validating manifest of crates.io crate dync 0.5.7 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 dync 0.5.7 [INFO] finished tweaking crates.io crate dync 0.5.7 [INFO] tweaked toml for crates.io crate dync 0.5.7 written to /workspace/builds/worker-5-tc2/source/Cargo.toml [INFO] crate crates.io crate dync 0.5.7 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-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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] 699df9abd93c31a1d4b563d22f57ad50a120d5d8d53b9f269917e63743582ff2 [INFO] running `Command { std: "docker" "start" "-a" "699df9abd93c31a1d4b563d22f57ad50a120d5d8d53b9f269917e63743582ff2", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "699df9abd93c31a1d4b563d22f57ad50a120d5d8d53b9f269917e63743582ff2", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "699df9abd93c31a1d4b563d22f57ad50a120d5d8d53b9f269917e63743582ff2", kill_on_drop: false }` [INFO] [stdout] 699df9abd93c31a1d4b563d22f57ad50a120d5d8d53b9f269917e63743582ff2 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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] 3792cc48a9665ab648c75050dca1f24d1efbba94f5f3c4dedaffbd0f4e32b945 [INFO] running `Command { std: "docker" "start" "-a" "3792cc48a9665ab648c75050dca1f24d1efbba94f5f3c4dedaffbd0f4e32b945", kill_on_drop: false }` [INFO] [stderr] Compiling autocfg v1.1.0 [INFO] [stderr] Compiling proc-macro2 v1.0.69 [INFO] [stderr] Compiling unicode-ident v1.0.12 [INFO] [stderr] Compiling libc v0.2.149 [INFO] [stderr] Compiling crossbeam-utils v0.8.16 [INFO] [stderr] Compiling serde v1.0.190 [INFO] [stderr] Checking scopeguard v1.2.0 [INFO] [stderr] Checking ryu v1.0.15 [INFO] [stderr] Checking itoa v1.0.9 [INFO] [stderr] Compiling serde_json v1.0.108 [INFO] [stderr] Compiling rayon-core v1.12.0 [INFO] [stderr] Checking either v1.9.0 [INFO] [stderr] Compiling syn v1.0.109 [INFO] [stderr] Compiling unicode-segmentation v1.10.1 [INFO] [stderr] Checking regex-syntax v0.8.2 [INFO] [stderr] Checking plotters-backend v0.3.5 [INFO] [stderr] Checking unicode-width v0.1.11 [INFO] [stderr] Checking memchr v2.6.4 [INFO] [stderr] Checking textwrap v0.11.0 [INFO] [stderr] Checking ppv-lite86 v0.2.17 [INFO] [stderr] Checking walkdir v2.4.0 [INFO] [stderr] Checking itertools v0.10.5 [INFO] [stderr] Checking downcast-rs v1.2.0 [INFO] [stderr] Checking plotters-svg v0.3.5 [INFO] [stderr] Compiling heck v0.3.3 [INFO] [stderr] Checking clap v2.34.0 [INFO] [stderr] Compiling memoffset v0.9.0 [INFO] [stderr] Compiling crossbeam-epoch v0.9.15 [INFO] [stderr] Compiling num-traits v0.2.17 [INFO] [stderr] Compiling quote v1.0.33 [INFO] [stderr] Compiling syn v2.0.38 [INFO] [stderr] Checking csv-core v0.1.11 [INFO] [stderr] Checking getrandom v0.2.10 [INFO] [stderr] Checking atty v0.2.14 [INFO] [stderr] Checking crossbeam-deque v0.8.3 [INFO] [stderr] Checking regex-automata v0.4.3 [INFO] [stderr] Checking rand_core v0.6.4 [INFO] [stderr] Checking rand_chacha v0.3.1 [INFO] [stderr] Checking rand v0.8.5 [INFO] [stderr] Checking criterion-plot v0.4.5 [INFO] [stderr] Checking rayon v1.8.0 [INFO] [stderr] Checking plotters v0.3.5 [INFO] [stderr] Checking csv v1.3.0 [INFO] [stderr] Checking serde_cbor v0.11.2 [INFO] [stderr] Checking regex v1.10.2 [INFO] [stderr] Checking tinytemplate v1.2.1 [INFO] [stderr] Compiling serde_derive v1.0.190 [INFO] [stderr] Compiling dync-derive v0.4.0 [INFO] [stderr] Checking dync v0.5.7 (/opt/rustwide/workdir) [INFO] [stdout] warning: unexpected `cfg` condition value: `shared-vtables` [INFO] [stdout] --> src/vtable.rs:91:7 [INFO] [stdout] | [INFO] [stdout] 91 | #[cfg(feature = "shared-vtables")] [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: expected values for `feature` are: `default`, `dync-derive`, `num-traits`, `numeric`, and `traits` [INFO] [stdout] = help: consider adding `shared-vtables` 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] warning: unexpected `cfg` condition value: `shared-vtables` [INFO] [stdout] --> src/vtable.rs:43:11 [INFO] [stdout] | [INFO] [stdout] 43 | #[cfg(feature = "shared-vtables")] [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: expected values for `feature` are: `default`, `dync-derive`, `num-traits`, `numeric`, and `traits` [INFO] [stdout] = help: consider adding `shared-vtables` as a feature in `Cargo.toml` [INFO] [stdout] = note: see for more information about checking conditional configuration [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unexpected `cfg` condition value: `shared-vtables` [INFO] [stdout] --> src/vtable.rs:53:19 [INFO] [stdout] | [INFO] [stdout] 53 | #[cfg(feature = "shared-vtables")] [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: expected values for `feature` are: `default`, `dync-derive`, `num-traits`, `numeric`, and `traits` [INFO] [stdout] = help: consider adding `shared-vtables` as a feature in `Cargo.toml` [INFO] [stdout] = note: see for more information about checking conditional configuration [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unexpected `cfg` condition value: `shared-vtables` [INFO] [stdout] --> src/vtable.rs:63:19 [INFO] [stdout] | [INFO] [stdout] 63 | #[cfg(feature = "shared-vtables")] [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: expected values for `feature` are: `default`, `dync-derive`, `num-traits`, `numeric`, and `traits` [INFO] [stdout] = help: consider adding `shared-vtables` as a feature in `Cargo.toml` [INFO] [stdout] = note: see for more information about checking conditional configuration [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unexpected `cfg` condition value: `shared-vtables` [INFO] [stdout] --> src/vtable.rs:105:19 [INFO] [stdout] | [INFO] [stdout] 105 | #[cfg(feature = "shared-vtables")] [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: expected values for `feature` are: `default`, `dync-derive`, `num-traits`, `numeric`, and `traits` [INFO] [stdout] = help: consider adding `shared-vtables` as a feature in `Cargo.toml` [INFO] [stdout] = note: see for more information about checking conditional configuration [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: this value of type `value::ValueMut<'_, V>` has significant drop implementation that will have a different drop order from that of Edition 2021 [INFO] [stdout] --> src/value.rs:659:24 [INFO] [stdout] | [INFO] [stdout] 656 | pub fn assign(&mut self, mut value: Value) { [INFO] [stdout] | --------- these local bindings with significant drop implementation may observe changes in drop order under Edition 2024 [INFO] [stdout] ... [INFO] [stdout] 659 | self.swap(&mut value.as_mut()) [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] warning: associated functions `rc_into_rc_bytes`, `rc_from_rc_bytes`, `arc_into_arc_bytes`, and `arc_from_arc_bytes` are never used [INFO] [stdout] --> src/bytes.rs:107:8 [INFO] [stdout] | [INFO] [stdout] 16 | pub(crate) trait Bytes [INFO] [stdout] | ----- associated functions in this trait [INFO] [stdout] ... [INFO] [stdout] 107 | fn rc_into_rc_bytes(rc: Rc) -> Rc<[MaybeUninit]> { [INFO] [stdout] | ^^^^^^^^^^^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 115 | unsafe fn rc_from_rc_bytes(rc: Rc<[MaybeUninit]>) -> Rc { [INFO] [stdout] | ^^^^^^^^^^^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 120 | fn arc_into_arc_bytes(arc: Arc) -> Arc<[MaybeUninit]> { [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 128 | unsafe fn arc_from_arc_bytes(arc: Arc<[MaybeUninit]>) -> Arc { [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: aborting due to 1 previous error; 6 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] error: could not compile `dync` (lib) due to 2 previous errors; 6 warnings emitted [INFO] [stderr] warning: build failed, waiting for other jobs to finish... [INFO] running `Command { std: "docker" "inspect" "3792cc48a9665ab648c75050dca1f24d1efbba94f5f3c4dedaffbd0f4e32b945", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "3792cc48a9665ab648c75050dca1f24d1efbba94f5f3c4dedaffbd0f4e32b945", kill_on_drop: false }` [INFO] [stdout] 3792cc48a9665ab648c75050dca1f24d1efbba94f5f3c4dedaffbd0f4e32b945