[INFO] fetching crate alloca 0.4.0... [INFO] checking alloca-0.4.0 against try#4d98531622e1718ae0bc3c7a1ab9cd8938428452+rustflags=-Dtail_expr_drop_order for pr-129604 [INFO] extracting crate alloca 0.4.0 into /workspace/builds/worker-6-tc2/source [INFO] validating manifest of crates.io crate alloca 0.4.0 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 alloca 0.4.0 [INFO] finished tweaking crates.io crate alloca 0.4.0 [INFO] tweaked toml for crates.io crate alloca 0.4.0 written to /workspace/builds/worker-6-tc2/source/Cargo.toml [INFO] crate crates.io crate alloca 0.4.0 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" "+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-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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] 9e3a977d6e1b21f5d6cf4e03c5aec236c8ed8f36f412cec83c6ae07fcda31a6f [INFO] running `Command { std: "docker" "start" "-a" "9e3a977d6e1b21f5d6cf4e03c5aec236c8ed8f36f412cec83c6ae07fcda31a6f", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "9e3a977d6e1b21f5d6cf4e03c5aec236c8ed8f36f412cec83c6ae07fcda31a6f", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "9e3a977d6e1b21f5d6cf4e03c5aec236c8ed8f36f412cec83c6ae07fcda31a6f", kill_on_drop: false }` [INFO] [stdout] 9e3a977d6e1b21f5d6cf4e03c5aec236c8ed8f36f412cec83c6ae07fcda31a6f [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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] f01b50e0d6cc285a632d1ff8036cdae06fbd38647a3683a1d9ebd8056127166a [INFO] running `Command { std: "docker" "start" "-a" "f01b50e0d6cc285a632d1ff8036cdae06fbd38647a3683a1d9ebd8056127166a", kill_on_drop: false }` [INFO] [stderr] Compiling libc v0.2.147 [INFO] [stderr] Compiling cc v1.0.81 [INFO] [stderr] Compiling alloca v0.4.0 (/opt/rustwide/workdir) [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:76:23 [INFO] [stdout] | [INFO] [stdout] 75 | pub fn with_alloca_zeroed(size: usize, f: impl FnOnce(&mut [u8]) -> R) -> R { [INFO] [stdout] | ------------------------------ these values have significant drop implementation and will observe changes in drop order under Edition 2024 [INFO] [stdout] 76 | with_alloca(size, |memory| unsafe { [INFO] [stdout] | _______________________^ [INFO] [stdout] 77 | | ptr::write_bytes(memory.as_mut_ptr(), 0, size); [INFO] [stdout] 78 | | f(mem::transmute(memory)) [INFO] [stdout] 79 | | }) [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:86:57 [INFO] [stdout] | [INFO] [stdout] 83 | pub fn alloca(f: impl FnOnce(&mut MaybeUninit) -> R) -> R { [INFO] [stdout] | ---------------------------------------- these values have significant drop implementation and will observe changes in drop order under Edition 2024 [INFO] [stdout] ... [INFO] [stdout] 86 | with_alloca(size_of::() + (align_of::() - 1), |memory| unsafe { [INFO] [stdout] | _________________________________________________________^ [INFO] [stdout] 87 | | let mut raw_memory = memory.as_mut_ptr(); [INFO] [stdout] 88 | | if raw_memory as usize % align_of::() != 0 { [INFO] [stdout] 89 | | raw_memory = raw_memory.add(align_of::() - raw_memory as usize % align_of::()); [INFO] [stdout] 90 | | } [INFO] [stdout] 91 | | f(&mut *raw_memory.cast::>()) [INFO] [stdout] 92 | | }) [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 2 previous errors [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] error: could not compile `alloca` (lib test) due to 3 previous errors [INFO] [stderr] warning: build failed, waiting for other jobs to finish... [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:76:23 [INFO] [stdout] | [INFO] [stdout] 75 | pub fn with_alloca_zeroed(size: usize, f: impl FnOnce(&mut [u8]) -> R) -> R { [INFO] [stdout] | ------------------------------ these values have significant drop implementation and will observe changes in drop order under Edition 2024 [INFO] [stdout] 76 | with_alloca(size, |memory| unsafe { [INFO] [stdout] | _______________________^ [INFO] [stdout] 77 | | ptr::write_bytes(memory.as_mut_ptr(), 0, size); [INFO] [stdout] 78 | | f(mem::transmute(memory)) [INFO] [stdout] 79 | | }) [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] [stderr] error: could not compile `alloca` (lib) due to 3 previous errors [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:86:57 [INFO] [stdout] | [INFO] [stdout] 83 | pub fn alloca(f: impl FnOnce(&mut MaybeUninit) -> R) -> R { [INFO] [stdout] | ---------------------------------------- these values have significant drop implementation and will observe changes in drop order under Edition 2024 [INFO] [stdout] ... [INFO] [stdout] 86 | with_alloca(size_of::() + (align_of::() - 1), |memory| unsafe { [INFO] [stdout] | _________________________________________________________^ [INFO] [stdout] 87 | | let mut raw_memory = memory.as_mut_ptr(); [INFO] [stdout] 88 | | if raw_memory as usize % align_of::() != 0 { [INFO] [stdout] 89 | | raw_memory = raw_memory.add(align_of::() - raw_memory as usize % align_of::()); [INFO] [stdout] 90 | | } [INFO] [stdout] 91 | | f(&mut *raw_memory.cast::>()) [INFO] [stdout] 92 | | }) [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 2 previous errors [INFO] [stdout] [INFO] [stdout] [INFO] running `Command { std: "docker" "inspect" "f01b50e0d6cc285a632d1ff8036cdae06fbd38647a3683a1d9ebd8056127166a", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "f01b50e0d6cc285a632d1ff8036cdae06fbd38647a3683a1d9ebd8056127166a", kill_on_drop: false }` [INFO] [stdout] f01b50e0d6cc285a632d1ff8036cdae06fbd38647a3683a1d9ebd8056127166a