[INFO] fetching crate generic-vec 0.1.2... [INFO] checking generic-vec-0.1.2 against try#4d98531622e1718ae0bc3c7a1ab9cd8938428452+rustflags=-Dtail_expr_drop_order for pr-129604 [INFO] extracting crate generic-vec 0.1.2 into /workspace/builds/worker-4-tc2/source [INFO] validating manifest of crates.io crate generic-vec 0.1.2 on toolchain 4d98531622e1718ae0bc3c7a1ab9cd8938428452 [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+4d98531622e1718ae0bc3c7a1ab9cd8938428452" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking crates.io crate generic-vec 0.1.2 [INFO] finished tweaking crates.io crate generic-vec 0.1.2 [INFO] tweaked toml for crates.io crate generic-vec 0.1.2 written to /workspace/builds/worker-4-tc2/source/Cargo.toml [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+4d98531622e1718ae0bc3c7a1ab9cd8938428452" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] Updating crates.io index [INFO] [stderr] Locking 9 packages to latest compatible versions [INFO] [stderr] Adding syn v1.0.109 (latest: v2.0.77) [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+4d98531622e1718ae0bc3c7a1ab9cd8938428452" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+4d98531622e1718ae0bc3c7a1ab9cd8938428452" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 747336756fa4e0f4180eae8493264319039562496c7b2fbdb2c0d72f29636b63 [INFO] running `Command { std: "docker" "start" "-a" "747336756fa4e0f4180eae8493264319039562496c7b2fbdb2c0d72f29636b63", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "747336756fa4e0f4180eae8493264319039562496c7b2fbdb2c0d72f29636b63", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "747336756fa4e0f4180eae8493264319039562496c7b2fbdb2c0d72f29636b63", kill_on_drop: false }` [INFO] [stdout] 747336756fa4e0f4180eae8493264319039562496c7b2fbdb2c0d72f29636b63 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+4d98531622e1718ae0bc3c7a1ab9cd8938428452" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] b1fc9e3806a08d99264e5dd063ac900cdcd65e71ed4924667e0ba6de35dd33b1 [INFO] running `Command { std: "docker" "start" "-a" "b1fc9e3806a08d99264e5dd063ac900cdcd65e71ed4924667e0ba6de35dd33b1", kill_on_drop: false }` [INFO] [stderr] Checking alloc-traits v0.1.1 [INFO] [stderr] Checking generic-vec v0.1.2 (/opt/rustwide/workdir) [INFO] [stderr] Compiling mockalloc-macros v0.1.0 [INFO] [stderr] Checking static-alloc v0.2.5 [INFO] [stdout] warning: unexpected `cfg` condition value: `8` [INFO] [stdout] --> src/raw/capacity.rs:11:5 [INFO] [stdout] | [INFO] [stdout] 11 | target_pointer_width = "8", [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: expected values for `target_pointer_width` are: `16`, `32`, and `64` [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: `8` [INFO] [stdout] --> src/raw/capacity.rs:24:11 [INFO] [stdout] | [INFO] [stdout] 24 | #[cfg(target_pointer_width = "8")] [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: expected values for `target_pointer_width` are: `16`, `32`, and `64` [INFO] [stdout] = note: see for more information about checking conditional configuration [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: these values and local bindings have significant drop implementation that will have a different drop order from that of Edition 2021 [INFO] [stdout] --> src/lib.rs:1756:27 [INFO] [stdout] | [INFO] [stdout] 1752 | pub fn cursor(&mut self, range: R) -> iter::Cursor<'_, T, S> [INFO] [stdout] | -------- these values have significant drop implementation and will observe changes in drop order under Edition 2024 [INFO] [stdout] ... [INFO] [stdout] 1756 | iter::Cursor::new(self.raw_cursor(range)) [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: these values and local bindings have significant drop implementation that will have a different drop order from that of Edition 2021 [INFO] [stdout] --> src/lib.rs:1776:26 [INFO] [stdout] | [INFO] [stdout] 1772 | pub fn drain(&mut self, range: R) -> iter::Drain<'_, T, S> [INFO] [stdout] | -------- these values have significant drop implementation and will observe changes in drop order under Edition 2024 [INFO] [stdout] ... [INFO] [stdout] 1776 | iter::Drain::new(self.raw_cursor(range)) [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: these values and local bindings have significant drop implementation that will have a different drop order from that of Edition 2021 [INFO] [stdout] --> src/lib.rs:1795:32 [INFO] [stdout] | [INFO] [stdout] 1790 | pub fn drain_filter(&mut self, range: R, f: F) -> iter::DrainFilter<'_, T, S, F> [INFO] [stdout] | -------- ---- these values have significant drop implementation and will observe changes in drop order under Edition 2024 [INFO] [stdout] | | [INFO] [stdout] | these values have significant drop implementation and will observe changes in drop order under Edition 2024 [INFO] [stdout] ... [INFO] [stdout] 1795 | iter::DrainFilter::new(self.raw_cursor(range), f) [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: these values and local bindings have significant drop implementation that will have a different drop order from that of Edition 2021 [INFO] [stdout] --> src/lib.rs:1820:27 [INFO] [stdout] | [INFO] [stdout] 1815 | pub fn splice(&mut self, range: R, replace_with: I) -> iter::Splice<'_, T, S, I::IntoIter> [INFO] [stdout] | -------- --------------- these values have significant drop implementation and will observe changes in drop order under Edition 2024 [INFO] [stdout] | | [INFO] [stdout] | these values have significant drop implementation and will observe changes in drop order under Edition 2024 [INFO] [stdout] ... [INFO] [stdout] 1820 | iter::Splice::new(self.raw_cursor(range), replace_with.into_iter()) [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: these values and local bindings have significant drop implementation that will have a different drop order from that of Edition 2021 [INFO] [stdout] --> src/lib.rs:1820:51 [INFO] [stdout] | [INFO] [stdout] 1815 | pub fn splice(&mut self, range: R, replace_with: I) -> iter::Splice<'_, T, S, I::IntoIter> [INFO] [stdout] | -------- --------------- these values have significant drop implementation and will observe changes in drop order under Edition 2024 [INFO] [stdout] | | [INFO] [stdout] | these values have significant drop implementation and will observe changes in drop order under Edition 2024 [INFO] [stdout] ... [INFO] [stdout] 1820 | iter::Splice::new(self.raw_cursor(range), replace_with.into_iter()) [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: these values and local bindings have significant drop implementation that will have a different drop order from that of Edition 2021 [INFO] [stdout] --> src/lib.rs:1960:23 [INFO] [stdout] | [INFO] [stdout] 1941 | pub fn dedup_by_key(&mut self, key: F) [INFO] [stdout] | ------ these values have significant drop implementation and will observe changes in drop order under Edition 2024 [INFO] [stdout] ... [INFO] [stdout] 1960 | self.dedup_by(key_to_same_bucket(key)) [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: calls to `std::mem::drop` with a reference instead of an owned value does nothing [INFO] [stdout] --> src/iter.rs:41:30 [INFO] [stdout] | [INFO] [stdout] 41 | iter.for_each(|item| drop(self.push(item))); [INFO] [stdout] | ^^^^^---------------^ [INFO] [stdout] | | [INFO] [stdout] | argument has type `&mut T` [INFO] [stdout] | [INFO] [stdout] = note: use `let _ = ...` to ignore the expression or result [INFO] [stdout] = note: `#[warn(dropping_references)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: calls to `std::mem::drop` with a reference instead of an owned value does nothing [INFO] [stdout] --> src/iter.rs:50:39 [INFO] [stdout] | [INFO] [stdout] 50 | iter.cloned().for_each(|item| drop(self.push(item))); [INFO] [stdout] | ^^^^^---------------^ [INFO] [stdout] | | [INFO] [stdout] | argument has type `&mut T` [INFO] [stdout] | [INFO] [stdout] = note: use `let _ = ...` to ignore the expression or result [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: these values and local bindings have significant drop implementation that will have a different drop order from that of Edition 2021 [INFO] [stdout] --> src/raw/uninit.rs:72:31 [INFO] [stdout] | [INFO] [stdout] 71 | pub const fn new(value: T) -> Self { [INFO] [stdout] | -------- these values have significant drop implementation and will observe changes in drop order under Edition 2024 [INFO] [stdout] 72 | Self(MaybeUninit::new(AlignedBuffer { [INFO] [stdout] | _______________________________^ [INFO] [stdout] 73 | | align: MaybeUninit::uninit(), [INFO] [stdout] 74 | | value, [INFO] [stdout] 75 | | })) [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: aborting due to 7 previous errors; 4 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] error: could not compile `generic-vec` (lib) due to 8 previous errors; 4 warnings emitted [INFO] [stderr] warning: build failed, waiting for other jobs to finish... [INFO] running `Command { std: "docker" "inspect" "b1fc9e3806a08d99264e5dd063ac900cdcd65e71ed4924667e0ba6de35dd33b1", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "b1fc9e3806a08d99264e5dd063ac900cdcd65e71ed4924667e0ba6de35dd33b1", kill_on_drop: false }` [INFO] [stdout] b1fc9e3806a08d99264e5dd063ac900cdcd65e71ed4924667e0ba6de35dd33b1