[INFO] fetching crate sample-config-macros 0.2.0... [INFO] checking sample-config-macros-0.2.0 against try#4d98531622e1718ae0bc3c7a1ab9cd8938428452+rustflags=-Dtail_expr_drop_order for pr-129604 [INFO] extracting crate sample-config-macros 0.2.0 into /workspace/builds/worker-5-tc2/source [INFO] validating manifest of crates.io crate sample-config-macros 0.2.0 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 sample-config-macros 0.2.0 [INFO] finished tweaking crates.io crate sample-config-macros 0.2.0 [INFO] tweaked toml for crates.io crate sample-config-macros 0.2.0 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] Updating crates.io index [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] 6359f4bed50d25153c7718f71c6ccf459e424438245c80639ab3ae2b958e470d [INFO] running `Command { std: "docker" "start" "-a" "6359f4bed50d25153c7718f71c6ccf459e424438245c80639ab3ae2b958e470d", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "6359f4bed50d25153c7718f71c6ccf459e424438245c80639ab3ae2b958e470d", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "6359f4bed50d25153c7718f71c6ccf459e424438245c80639ab3ae2b958e470d", kill_on_drop: false }` [INFO] [stdout] 6359f4bed50d25153c7718f71c6ccf459e424438245c80639ab3ae2b958e470d [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] 1545f05e15c2b23d640d3e3070595bb1eb47924a6a4a7f60e2260c033e819267 [INFO] running `Command { std: "docker" "start" "-a" "1545f05e15c2b23d640d3e3070595bb1eb47924a6a4a7f60e2260c033e819267", kill_on_drop: false }` [INFO] [stderr] Compiling syn v1.0.109 [INFO] [stderr] Checking sample-config-macros v0.2.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: unused variable: `yaml_fields` [INFO] [stdout] --> src/derive.rs:114:6 [INFO] [stdout] | [INFO] [stdout] 114 | let yaml_fields = fields.iter().map(FieldData::to_yaml_generator); [INFO] [stdout] | ^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_yaml_fields` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `yaml_fields` [INFO] [stdout] --> src/derive.rs:114:6 [INFO] [stdout] | [INFO] [stdout] 114 | let yaml_fields = fields.iter().map(FieldData::to_yaml_generator); [INFO] [stdout] | ^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_yaml_fields` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `json_fields` [INFO] [stdout] --> src/derive.rs:115:6 [INFO] [stdout] | [INFO] [stdout] 115 | let json_fields = fields.iter().map(FieldData::to_json_generator); [INFO] [stdout] | ^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_json_fields` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `variant_idents` [INFO] [stdout] --> src/derive.rs:160:6 [INFO] [stdout] | [INFO] [stdout] 160 | let variant_idents = data.variants.iter().map(|variant| &variant.ident).collect::>(); [INFO] [stdout] | ^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_variant_idents` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `variant_strings` [INFO] [stdout] --> src/derive.rs:161:6 [INFO] [stdout] | [INFO] [stdout] 161 | let variant_strings = [INFO] [stdout] | ^^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_variant_strings` [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:30:2 [INFO] [stdout] | [INFO] [stdout] 28 | pub fn sample_config(input: TokenStream) -> TokenStream { [INFO] [stdout] | ------------------ these values have significant drop implementation and will observe changes in drop order under Edition 2024 [INFO] [stdout] 29 | let input = parse_macro_input!(input as DeriveInput); [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] 30 | derive_sample_config(input).into() [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; 4 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] error: could not compile `sample-config-macros` (lib) due to 2 previous errors; 4 warnings emitted [INFO] [stderr] warning: build failed, waiting for other jobs to finish... [INFO] [stdout] warning: unused variable: `json_fields` [INFO] [stdout] --> src/derive.rs:115:6 [INFO] [stdout] | [INFO] [stdout] 115 | let json_fields = fields.iter().map(FieldData::to_json_generator); [INFO] [stdout] | ^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_json_fields` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `variant_idents` [INFO] [stdout] --> src/derive.rs:160:6 [INFO] [stdout] | [INFO] [stdout] 160 | let variant_idents = data.variants.iter().map(|variant| &variant.ident).collect::>(); [INFO] [stdout] | ^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_variant_idents` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `variant_strings` [INFO] [stdout] --> src/derive.rs:161:6 [INFO] [stdout] | [INFO] [stdout] 161 | let variant_strings = [INFO] [stdout] | ^^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_variant_strings` [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:30:2 [INFO] [stdout] | [INFO] [stdout] 28 | pub fn sample_config(input: TokenStream) -> TokenStream { [INFO] [stdout] | ------------------ these values have significant drop implementation and will observe changes in drop order under Edition 2024 [INFO] [stdout] 29 | let input = parse_macro_input!(input as DeriveInput); [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] 30 | derive_sample_config(input).into() [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; 4 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] error: could not compile `sample-config-macros` (lib test) due to 2 previous errors; 4 warnings emitted [INFO] running `Command { std: "docker" "inspect" "1545f05e15c2b23d640d3e3070595bb1eb47924a6a4a7f60e2260c033e819267", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "1545f05e15c2b23d640d3e3070595bb1eb47924a6a4a7f60e2260c033e819267", kill_on_drop: false }` [INFO] [stdout] 1545f05e15c2b23d640d3e3070595bb1eb47924a6a4a7f60e2260c033e819267