[INFO] fetching crate gramma 0.2.24... [INFO] checking gramma-0.2.24 against try#7014e13d5becc920d4bea3cd87942c8a13d359bf+rustflags=-Dtail_expr_drop_order for pr-129864 [INFO] extracting crate gramma 0.2.24 into /workspace/builds/worker-0-tc2/source [INFO] validating manifest of crates.io crate gramma 0.2.24 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 gramma 0.2.24 [INFO] finished tweaking crates.io crate gramma 0.2.24 [INFO] tweaked toml for crates.io crate gramma 0.2.24 written to /workspace/builds/worker-0-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 8 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] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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] de3d17990d0f16457969f0b3cb6bcc4bc2391379c699b627d9c0b2e17e28bfd7 [INFO] running `Command { std: "docker" "start" "-a" "de3d17990d0f16457969f0b3cb6bcc4bc2391379c699b627d9c0b2e17e28bfd7", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "de3d17990d0f16457969f0b3cb6bcc4bc2391379c699b627d9c0b2e17e28bfd7", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "de3d17990d0f16457969f0b3cb6bcc4bc2391379c699b627d9c0b2e17e28bfd7", kill_on_drop: false }` [INFO] [stdout] de3d17990d0f16457969f0b3cb6bcc4bc2391379c699b627d9c0b2e17e28bfd7 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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] bfd4daaeb9f8230bdf688e6dafd32dd48d9c0556218dd7e6965df58b09573bfa [INFO] running `Command { std: "docker" "start" "-a" "bfd4daaeb9f8230bdf688e6dafd32dd48d9c0556218dd7e6965df58b09573bfa", kill_on_drop: false }` [INFO] [stderr] Checking regex-syntax v0.8.4 [INFO] [stderr] Checking smallvec v1.13.2 [INFO] [stderr] Checking once_cell v1.19.0 [INFO] [stderr] Checking either v1.13.0 [INFO] [stderr] Checking regex-automata v0.4.7 [INFO] [stderr] Checking regex v1.10.6 [INFO] [stderr] Checking gramma v0.2.24 (/opt/rustwide/workdir) [INFO] [stdout] error: this value of type `ControlFlow<::Break, ::Continue>` has significant drop implementation that will have a different drop order from that of Edition 2021 [INFO] [stdout] --> src/utils.rs:59:15 [INFO] [stdout] | [INFO] [stdout] 58 | fn map(self, f: impl FnOnce(Self::Continue) -> C) -> WithContinue { [INFO] [stdout] | - these local bindings with significant drop implementation may observe changes in drop order under Edition 2024 [INFO] [stdout] 59 | match self.into_ctrl() { [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 `ControlFlow<::Break, ::Continue>` has significant drop implementation that will have a different drop order from that of Edition 2021 [INFO] [stdout] --> src/utils.rs:69:15 [INFO] [stdout] | [INFO] [stdout] 65 | fn flat_map(self, f: impl FnOnce(Self::Continue) -> X) -> X [INFO] [stdout] | - these local bindings with significant drop implementation may observe changes in drop order under Edition 2024 [INFO] [stdout] ... [INFO] [stdout] 69 | match self.into_ctrl() { [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 `ControlFlow<::Break, ::Continue>` has significant drop implementation that will have a different drop order from that of Edition 2021 [INFO] [stdout] --> src/utils.rs:103:15 [INFO] [stdout] | [INFO] [stdout] 99 | fn map_break(self, f: impl FnOnce(Self::Break) -> B) -> Self::WithBreak [INFO] [stdout] | - these local bindings with significant drop implementation may observe changes in drop order under Edition 2024 [INFO] [stdout] ... [INFO] [stdout] 103 | match self.into_ctrl() { [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 `ControlFlow<::Break, ::Continue>` has significant drop implementation that will have a different drop order from that of Edition 2021 [INFO] [stdout] --> src/utils.rs:113:15 [INFO] [stdout] | [INFO] [stdout] 109 | fn flat_map_break(self, f: impl FnOnce(Self::Break) -> X) -> X [INFO] [stdout] | - these local bindings with significant drop implementation may observe changes in drop order under Edition 2024 [INFO] [stdout] ... [INFO] [stdout] 113 | match self.into_ctrl() { [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 `ControlFlow<::Break, ::Continue>` has significant drop implementation that will have a different drop order from that of Edition 2021 [INFO] [stdout] --> src/utils.rs:59:15 [INFO] [stdout] | [INFO] [stdout] 58 | fn map(self, f: impl FnOnce(Self::Continue) -> C) -> WithContinue { [INFO] [stdout] | - these local bindings with significant drop implementation may observe changes in drop order under Edition 2024 [INFO] [stdout] 59 | match self.into_ctrl() { [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 `ControlFlow<::Break, ::Continue>` has significant drop implementation that will have a different drop order from that of Edition 2021 [INFO] [stdout] --> src/utils.rs:69:15 [INFO] [stdout] | [INFO] [stdout] 65 | fn flat_map(self, f: impl FnOnce(Self::Continue) -> X) -> X [INFO] [stdout] | - these local bindings with significant drop implementation may observe changes in drop order under Edition 2024 [INFO] [stdout] ... [INFO] [stdout] 69 | match self.into_ctrl() { [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 `ControlFlow<::Break, ::Continue>` has significant drop implementation that will have a different drop order from that of Edition 2021 [INFO] [stdout] --> src/utils.rs:103:15 [INFO] [stdout] | [INFO] [stdout] 99 | fn map_break(self, f: impl FnOnce(Self::Break) -> B) -> Self::WithBreak [INFO] [stdout] | - these local bindings with significant drop implementation may observe changes in drop order under Edition 2024 [INFO] [stdout] ... [INFO] [stdout] 103 | match self.into_ctrl() { [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 `ControlFlow<::Break, ::Continue>` has significant drop implementation that will have a different drop order from that of Edition 2021 [INFO] [stdout] --> src/utils.rs:113:15 [INFO] [stdout] | [INFO] [stdout] 109 | fn flat_map_break(self, f: impl FnOnce(Self::Break) -> X) -> X [INFO] [stdout] | - these local bindings with significant drop implementation may observe changes in drop order under Edition 2024 [INFO] [stdout] ... [INFO] [stdout] 113 | match self.into_ctrl() { [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: trait `MyTryKind` is never used [INFO] [stdout] --> src/utils.rs:39:18 [INFO] [stdout] | [INFO] [stdout] 39 | pub(crate) trait MyTryKind: MyTry { [INFO] [stdout] | ^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: multiple associated items are never used [INFO] [stdout] --> src/utils.rs:50:8 [INFO] [stdout] | [INFO] [stdout] 43 | pub(crate) trait MyTry: Sized { [INFO] [stdout] | ----- associated items in this trait [INFO] [stdout] ... [INFO] [stdout] 50 | fn from_continue(c: Self::Continue) -> Self { [INFO] [stdout] | ^^^^^^^^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 58 | fn map(self, f: impl FnOnce(Self::Continue) -> C) -> WithContinue { [INFO] [stdout] | ^^^ [INFO] [stdout] ... [INFO] [stdout] 75 | fn continue_also(self, f: impl FnOnce(&mut Self::Continue)) -> Self { [INFO] [stdout] | ^^^^^^^^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 90 | fn continue_also_with( [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 99 | fn map_break(self, f: impl FnOnce(Self::Break) -> B) -> Self::WithBreak [INFO] [stdout] | ^^^^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 109 | fn flat_map_break(self, f: impl FnOnce(Self::Break) -> X) -> X [INFO] [stdout] | ^^^^^^^^^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 119 | fn break_also_with( [INFO] [stdout] | ^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: trait `MapBreak` is never used [INFO] [stdout] --> src/utils.rs:133:18 [INFO] [stdout] | [INFO] [stdout] 133 | pub(crate) trait MapBreak: MyTry { [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: type alias `WithContinue` is never used [INFO] [stdout] --> src/utils.rs:137:17 [INFO] [stdout] | [INFO] [stdout] 137 | pub(crate) type WithContinue = <::Kind as MyTryKind>::WithContinue; [INFO] [stdout] | ^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: trait `FunctionalExt` is never used [INFO] [stdout] --> src/utils.rs:214:18 [INFO] [stdout] | [INFO] [stdout] 214 | pub(crate) trait FunctionalExt: Sized { [INFO] [stdout] | ^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: aborting due to 4 previous errors; 5 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: trait `MyTryKind` is never used [INFO] [stdout] --> src/utils.rs:39:18 [INFO] [stdout] | [INFO] [stdout] 39 | pub(crate) trait MyTryKind: MyTry { [INFO] [stdout] | ^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: multiple associated items are never used [INFO] [stdout] --> src/utils.rs:50:8 [INFO] [stdout] | [INFO] [stdout] 43 | pub(crate) trait MyTry: Sized { [INFO] [stdout] | ----- associated items in this trait [INFO] [stdout] ... [INFO] [stdout] 50 | fn from_continue(c: Self::Continue) -> Self { [INFO] [stdout] | ^^^^^^^^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 58 | fn map(self, f: impl FnOnce(Self::Continue) -> C) -> WithContinue { [INFO] [stdout] | ^^^ [INFO] [stdout] ... [INFO] [stdout] 75 | fn continue_also(self, f: impl FnOnce(&mut Self::Continue)) -> Self { [INFO] [stdout] | ^^^^^^^^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 90 | fn continue_also_with( [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 99 | fn map_break(self, f: impl FnOnce(Self::Break) -> B) -> Self::WithBreak [INFO] [stdout] | ^^^^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 109 | fn flat_map_break(self, f: impl FnOnce(Self::Break) -> X) -> X [INFO] [stdout] | ^^^^^^^^^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 119 | fn break_also_with( [INFO] [stdout] | ^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: trait `MapBreak` is never used [INFO] [stdout] --> src/utils.rs:133:18 [INFO] [stdout] | [INFO] [stdout] 133 | pub(crate) trait MapBreak: MyTry { [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: type alias `WithContinue` is never used [INFO] [stdout] --> src/utils.rs:137:17 [INFO] [stdout] | [INFO] [stdout] 137 | pub(crate) type WithContinue = <::Kind as MyTryKind>::WithContinue; [INFO] [stdout] | ^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: trait `FunctionalExt` is never used [INFO] [stdout] --> src/utils.rs:214:18 [INFO] [stdout] | [INFO] [stdout] 214 | pub(crate) trait FunctionalExt: Sized { [INFO] [stdout] | ^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] error: could not compile `gramma` (lib) due to 5 previous errors; 5 warnings emitted [INFO] [stderr] warning: build failed, waiting for other jobs to finish... [INFO] [stdout] error: aborting due to 4 previous errors; 5 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] error: could not compile `gramma` (lib test) due to 5 previous errors; 5 warnings emitted [INFO] running `Command { std: "docker" "inspect" "bfd4daaeb9f8230bdf688e6dafd32dd48d9c0556218dd7e6965df58b09573bfa", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "bfd4daaeb9f8230bdf688e6dafd32dd48d9c0556218dd7e6965df58b09573bfa", kill_on_drop: false }` [INFO] [stdout] bfd4daaeb9f8230bdf688e6dafd32dd48d9c0556218dd7e6965df58b09573bfa