[INFO] fetching crate uptown_funk_macro 0.1.2... [INFO] checking uptown_funk_macro-0.1.2 against try#7014e13d5becc920d4bea3cd87942c8a13d359bf+rustflags=-Dtail_expr_drop_order for pr-129864 [INFO] extracting crate uptown_funk_macro 0.1.2 into /workspace/builds/worker-1-tc2/source [INFO] validating manifest of crates.io crate uptown_funk_macro 0.1.2 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 uptown_funk_macro 0.1.2 [INFO] finished tweaking crates.io crate uptown_funk_macro 0.1.2 [INFO] tweaked toml for crates.io crate uptown_funk_macro 0.1.2 written to /workspace/builds/worker-1-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 4 packages to latest compatible versions [INFO] [stderr] Adding syn v1.0.109 (available: v2.0.77) [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-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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] d704261d8c6295721796b917c8805121d64d4479639517f642a5c146a7d114aa [INFO] running `Command { std: "docker" "start" "-a" "d704261d8c6295721796b917c8805121d64d4479639517f642a5c146a7d114aa", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "d704261d8c6295721796b917c8805121d64d4479639517f642a5c146a7d114aa", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "d704261d8c6295721796b917c8805121d64d4479639517f642a5c146a7d114aa", kill_on_drop: false }` [INFO] [stdout] d704261d8c6295721796b917c8805121d64d4479639517f642a5c146a7d114aa [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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] a496596a2826732626ad6a8f310093749e8ddccff4286089887bba19e8c59298 [INFO] running `Command { std: "docker" "start" "-a" "a496596a2826732626ad6a8f310093749e8ddccff4286089887bba19e8c59298", kill_on_drop: false }` [INFO] [stderr] Compiling syn v1.0.109 [INFO] [stderr] Checking uptown_funk_macro v0.1.2 (/opt/rustwide/workdir) [INFO] [stdout] warning: unused import: `ImplItem::Method` [INFO] [stdout] --> src/lib.rs:11:45 [INFO] [stdout] | [INFO] [stdout] 11 | use syn::{parse_macro_input, AttributeArgs, ImplItem::Method, ItemImpl}; [INFO] [stdout] | ^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `ImplItem::Method` [INFO] [stdout] --> src/lib.rs:11:45 [INFO] [stdout] | [INFO] [stdout] 11 | use syn::{parse_macro_input, AttributeArgs, ImplItem::Method, ItemImpl}; [INFO] [stdout] | ^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: this value of type `TokenStream2` has significant drop implementation that will have a different drop order from that of Edition 2021 [INFO] [stdout] --> src/signature/outputs.rs:58:17 [INFO] [stdout] | [INFO] [stdout] 58 | let mut return_argument = quote! {}; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 131 | let host_to_guest_transformation = quote! { [INFO] [stdout] | ________________________________________________- [INFO] [stdout] | |________________________________________________| [INFO] [stdout] 132 | | |result: #type_tuple| -> Result<#return_argument, uptown_funk::Trap> { [INFO] [stdout] 133 | | #(#return_argument_to_input_transformation)* [INFO] [stdout] 134 | | #return_argument_transformation(result.0) [INFO] [stdout] 135 | | } [INFO] [stdout] 136 | | }; [INFO] [stdout] | | - [INFO] [stdout] | |_____________| [INFO] [stdout] | |_____________these local bindings with significant drop implementation may observe changes in drop order under Edition 2024 [INFO] [stdout] | these local bindings with significant drop implementation may observe changes in drop order under Edition 2024 [INFO] [stdout] 137 | [INFO] [stdout] 138 | | let input_arguments = quote! { #(#input_argument_extensions),* }; [INFO] [stdout] | | ------------------------------------------ these local bindings with significant drop implementation may observe changes in drop order under Edition 2024 [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: unused variable: `namespace` [INFO] [stdout] --> src/lib.rs:17:9 [INFO] [stdout] | [INFO] [stdout] 17 | let namespace = match attribute::get_namespace(&attribute) { [INFO] [stdout] | ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_namespace` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `transform` is never used [INFO] [stdout] --> src/signature/mod.rs:16:8 [INFO] [stdout] | [INFO] [stdout] 16 | pub fn transform( [INFO] [stdout] | ^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `self_error` is never used [INFO] [stdout] --> src/signature/mod.rs:90:4 [INFO] [stdout] | [INFO] [stdout] 90 | fn self_error(location: S) -> TokenStream { [INFO] [stdout] | ^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `arg_error` is never used [INFO] [stdout] --> src/signature/mod.rs:98:4 [INFO] [stdout] | [INFO] [stdout] 98 | fn arg_error(location: S) -> TokenStream { [INFO] [stdout] | ^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `return_error` is never used [INFO] [stdout] --> src/signature/mod.rs:106:4 [INFO] [stdout] | [INFO] [stdout] 106 | fn return_error(location: S) -> TokenStream { [INFO] [stdout] | ^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: struct `ReplaceArgumentLifetime` is never constructed [INFO] [stdout] --> src/signature/inputs.rs:7:8 [INFO] [stdout] | [INFO] [stdout] 7 | struct ReplaceArgumentLifetime; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `transform` is never used [INFO] [stdout] --> src/signature/inputs.rs:38:8 [INFO] [stdout] | [INFO] [stdout] 38 | pub fn transform( [INFO] [stdout] | ^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `transform_path` is never used [INFO] [stdout] --> src/signature/inputs.rs:199:4 [INFO] [stdout] | [INFO] [stdout] 199 | fn transform_path(path: &Path) -> Transformation { [INFO] [stdout] | ^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `transform_reference` is never used [INFO] [stdout] --> src/signature/inputs.rs:219:4 [INFO] [stdout] | [INFO] [stdout] 219 | fn transform_reference(reference: &TypeReference) -> Transformation { [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: enum `Transformation` is never used [INFO] [stdout] --> src/signature/inputs.rs:288:6 [INFO] [stdout] | [INFO] [stdout] 288 | enum Transformation { [INFO] [stdout] | ^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `transform` is never used [INFO] [stdout] --> src/signature/outputs.rs:30:8 [INFO] [stdout] | [INFO] [stdout] 30 | pub fn transform( [INFO] [stdout] | ^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `first_output` is never used [INFO] [stdout] --> src/signature/outputs.rs:153:4 [INFO] [stdout] | [INFO] [stdout] 153 | fn first_output(type_path: &TypePath) -> Result<(TokenStream2, TokenStream2), TokenStream> { [INFO] [stdout] | ^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: aborting due to 1 previous error; 13 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] error: could not compile `uptown_funk_macro` (lib) due to 2 previous errors; 13 warnings emitted [INFO] [stderr] warning: build failed, waiting for other jobs to finish... [INFO] [stdout] error: this value of type `TokenStream2` has significant drop implementation that will have a different drop order from that of Edition 2021 [INFO] [stdout] --> src/signature/outputs.rs:58:17 [INFO] [stdout] | [INFO] [stdout] 58 | let mut return_argument = quote! {}; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 131 | let host_to_guest_transformation = quote! { [INFO] [stdout] | ________________________________________________- [INFO] [stdout] | |________________________________________________| [INFO] [stdout] 132 | | |result: #type_tuple| -> Result<#return_argument, uptown_funk::Trap> { [INFO] [stdout] 133 | | #(#return_argument_to_input_transformation)* [INFO] [stdout] 134 | | #return_argument_transformation(result.0) [INFO] [stdout] 135 | | } [INFO] [stdout] 136 | | }; [INFO] [stdout] | | - [INFO] [stdout] | |_____________| [INFO] [stdout] | |_____________these local bindings with significant drop implementation may observe changes in drop order under Edition 2024 [INFO] [stdout] | these local bindings with significant drop implementation may observe changes in drop order under Edition 2024 [INFO] [stdout] 137 | [INFO] [stdout] 138 | | let input_arguments = quote! { #(#input_argument_extensions),* }; [INFO] [stdout] | | ------------------------------------------ these local bindings with significant drop implementation may observe changes in drop order under Edition 2024 [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: unused variable: `namespace` [INFO] [stdout] --> src/lib.rs:17:9 [INFO] [stdout] | [INFO] [stdout] 17 | let namespace = match attribute::get_namespace(&attribute) { [INFO] [stdout] | ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_namespace` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `transform` is never used [INFO] [stdout] --> src/signature/mod.rs:16:8 [INFO] [stdout] | [INFO] [stdout] 16 | pub fn transform( [INFO] [stdout] | ^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `self_error` is never used [INFO] [stdout] --> src/signature/mod.rs:90:4 [INFO] [stdout] | [INFO] [stdout] 90 | fn self_error(location: S) -> TokenStream { [INFO] [stdout] | ^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `arg_error` is never used [INFO] [stdout] --> src/signature/mod.rs:98:4 [INFO] [stdout] | [INFO] [stdout] 98 | fn arg_error(location: S) -> TokenStream { [INFO] [stdout] | ^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `return_error` is never used [INFO] [stdout] --> src/signature/mod.rs:106:4 [INFO] [stdout] | [INFO] [stdout] 106 | fn return_error(location: S) -> TokenStream { [INFO] [stdout] | ^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: struct `ReplaceArgumentLifetime` is never constructed [INFO] [stdout] --> src/signature/inputs.rs:7:8 [INFO] [stdout] | [INFO] [stdout] 7 | struct ReplaceArgumentLifetime; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `transform` is never used [INFO] [stdout] --> src/signature/inputs.rs:38:8 [INFO] [stdout] | [INFO] [stdout] 38 | pub fn transform( [INFO] [stdout] | ^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `transform_path` is never used [INFO] [stdout] --> src/signature/inputs.rs:199:4 [INFO] [stdout] | [INFO] [stdout] 199 | fn transform_path(path: &Path) -> Transformation { [INFO] [stdout] | ^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `transform_reference` is never used [INFO] [stdout] --> src/signature/inputs.rs:219:4 [INFO] [stdout] | [INFO] [stdout] 219 | fn transform_reference(reference: &TypeReference) -> Transformation { [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: enum `Transformation` is never used [INFO] [stdout] --> src/signature/inputs.rs:288:6 [INFO] [stdout] | [INFO] [stdout] 288 | enum Transformation { [INFO] [stdout] | ^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `transform` is never used [INFO] [stdout] --> src/signature/outputs.rs:30:8 [INFO] [stdout] | [INFO] [stdout] 30 | pub fn transform( [INFO] [stdout] | ^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `first_output` is never used [INFO] [stdout] --> src/signature/outputs.rs:153:4 [INFO] [stdout] | [INFO] [stdout] 153 | fn first_output(type_path: &TypePath) -> Result<(TokenStream2, TokenStream2), TokenStream> { [INFO] [stdout] | ^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: aborting due to 1 previous error; 13 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] error: could not compile `uptown_funk_macro` (lib test) due to 2 previous errors; 13 warnings emitted [INFO] running `Command { std: "docker" "inspect" "a496596a2826732626ad6a8f310093749e8ddccff4286089887bba19e8c59298", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "a496596a2826732626ad6a8f310093749e8ddccff4286089887bba19e8c59298", kill_on_drop: false }` [INFO] [stdout] a496596a2826732626ad6a8f310093749e8ddccff4286089887bba19e8c59298