[INFO] fetching crate fn_once 0.3.0... [INFO] checking fn_once-0.3.0 against try#4d98531622e1718ae0bc3c7a1ab9cd8938428452+rustflags=-Dtail_expr_drop_order for pr-129604 [INFO] extracting crate fn_once 0.3.0 into /workspace/builds/worker-5-tc2/source [INFO] validating manifest of crates.io crate fn_once 0.3.0 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 fn_once 0.3.0 [INFO] finished tweaking crates.io crate fn_once 0.3.0 [INFO] tweaked toml for crates.io crate fn_once 0.3.0 written to /workspace/builds/worker-5-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] Blocking waiting for file lock on package cache [INFO] [stderr] Updating crates.io index [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] [stderr] Locking 5 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] 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@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+4d98531622e1718ae0bc3c7a1ab9cd8938428452" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 3deec0b8469e5934a5dfad82b8b7ff6d518ece492cf33763f13352fa8a9f31ad [INFO] running `Command { std: "docker" "start" "-a" "3deec0b8469e5934a5dfad82b8b7ff6d518ece492cf33763f13352fa8a9f31ad", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "3deec0b8469e5934a5dfad82b8b7ff6d518ece492cf33763f13352fa8a9f31ad", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "3deec0b8469e5934a5dfad82b8b7ff6d518ece492cf33763f13352fa8a9f31ad", kill_on_drop: false }` [INFO] [stdout] 3deec0b8469e5934a5dfad82b8b7ff6d518ece492cf33763f13352fa8a9f31ad [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@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+4d98531622e1718ae0bc3c7a1ab9cd8938428452" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 1a8d4fa4656a24d0d06ca960f4c50db0f9a78ed467e795e08b8979a0879b0dd5 [INFO] running `Command { std: "docker" "start" "-a" "1a8d4fa4656a24d0d06ca960f4c50db0f9a78ed467e795e08b8979a0879b0dd5", kill_on_drop: false }` [INFO] [stderr] Compiling proc-macro2 v1.0.86 [INFO] [stderr] Checking unicode-ident v1.0.12 [INFO] [stderr] Compiling syn v1.0.109 [INFO] [stderr] Checking quote v1.0.37 [INFO] [stderr] Checking fn_once v0.3.0 (/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:48:5 [INFO] [stdout] | [INFO] [stdout] 5 | pub fn once(attr: TokenStream, item: TokenStream) -> TokenStream { [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] 35 | syn::parse_macro_input!(item as syn::ItemFn) [INFO] [stdout] | -------------------------------------------- these values have significant drop implementation and will observe changes in drop order under Edition 2024 [INFO] [stdout] ... [INFO] [stdout] 48 | / TokenStream::from_str(&format!( [INFO] [stdout] 49 | | "#[cfg(not(feature = \"once_off\"))] [INFO] [stdout] 50 | | static {name}: std::sync::Once = std::sync::Once::new(); [INFO] [stdout] 51 | | {head1} fn {head2} {{ [INFO] [stdout] ... | [INFO] [stdout] 59 | | {body}" [INFO] [stdout] 60 | | )) [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: aborting due to 1 previous error [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] error: could not compile `fn_once` (lib) due to 2 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:48:5 [INFO] [stdout] | [INFO] [stdout] 5 | pub fn once(attr: TokenStream, item: TokenStream) -> TokenStream { [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] 35 | syn::parse_macro_input!(item as syn::ItemFn) [INFO] [stdout] | -------------------------------------------- these values have significant drop implementation and will observe changes in drop order under Edition 2024 [INFO] [stdout] ... [INFO] [stdout] 48 | / TokenStream::from_str(&format!( [INFO] [stdout] 49 | | "#[cfg(not(feature = \"once_off\"))] [INFO] [stdout] 50 | | static {name}: std::sync::Once = std::sync::Once::new(); [INFO] [stdout] 51 | | {head1} fn {head2} {{ [INFO] [stdout] ... | [INFO] [stdout] 59 | | {body}" [INFO] [stdout] 60 | | )) [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: aborting due to 1 previous error [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] error: could not compile `fn_once` (lib test) due to 2 previous errors [INFO] running `Command { std: "docker" "inspect" "1a8d4fa4656a24d0d06ca960f4c50db0f9a78ed467e795e08b8979a0879b0dd5", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "1a8d4fa4656a24d0d06ca960f4c50db0f9a78ed467e795e08b8979a0879b0dd5", kill_on_drop: false }` [INFO] [stdout] 1a8d4fa4656a24d0d06ca960f4c50db0f9a78ed467e795e08b8979a0879b0dd5