[INFO] fetching crate parsable-macro 0.1.1... [INFO] checking parsable-macro-0.1.1 against try#4d98531622e1718ae0bc3c7a1ab9cd8938428452+rustflags=-Dtail_expr_drop_order for pr-129604 [INFO] extracting crate parsable-macro 0.1.1 into /workspace/builds/worker-0-tc2/source [INFO] validating manifest of crates.io crate parsable-macro 0.1.1 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 parsable-macro 0.1.1 [INFO] finished tweaking crates.io crate parsable-macro 0.1.1 [INFO] tweaked toml for crates.io crate parsable-macro 0.1.1 written to /workspace/builds/worker-0-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 8 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-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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] 6497786ffdc2a462cbd84a8e63debf71f979637a7e9f1d021f193fd96012b74c [INFO] running `Command { std: "docker" "start" "-a" "6497786ffdc2a462cbd84a8e63debf71f979637a7e9f1d021f193fd96012b74c", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "6497786ffdc2a462cbd84a8e63debf71f979637a7e9f1d021f193fd96012b74c", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "6497786ffdc2a462cbd84a8e63debf71f979637a7e9f1d021f193fd96012b74c", kill_on_drop: false }` [INFO] [stdout] 6497786ffdc2a462cbd84a8e63debf71f979637a7e9f1d021f193fd96012b74c [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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] daaa8eb63b976fff56911e30a76340130b6d0adba8e3e72cd8d852b2a83814d4 [INFO] running `Command { std: "docker" "start" "-a" "daaa8eb63b976fff56911e30a76340130b6d0adba8e3e72cd8d852b2a83814d4", kill_on_drop: false }` [INFO] [stderr] Checking syn v1.0.109 [INFO] [stderr] Checking proc-macro-error v1.0.4 [INFO] [stderr] Checking parsable-macro v0.1.1 (/opt/rustwide/workdir) [INFO] [stdout] warning: field `token_name` is never read [INFO] [stdout] --> src/output.rs:9:9 [INFO] [stdout] | [INFO] [stdout] 4 | pub struct Output { [INFO] [stdout] | ------ field in this struct [INFO] [stdout] ... [INFO] [stdout] 9 | pub token_name: TokenStream, [INFO] [stdout] | ^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [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/field_attributes.rs:94:76 [INFO] [stdout] | [INFO] [stdout] 94 | if let Some((i, attr)) = attrs.iter().enumerate().find(|(_, attr)| attr.path.segments.last().unwrap().ident == "parsable") { [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/impl_struct.rs:13:12 [INFO] [stdout] | [INFO] [stdout] 11 | let field = Field::parse_named(input)?; [INFO] [stdout] | ----- these values have significant drop implementation and will observe changes in drop order under Edition 2024 [INFO] [stdout] 12 | [INFO] [stdout] 13 | Ok(Self { field }) [INFO] [stdout] | ^^^^^^^^^^^^^^ these values have significant drop implementation and will 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] [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/impl_struct.rs:21:5 [INFO] [stdout] | [INFO] [stdout] 19 | let result : Result = syn::parse_str(&string); [INFO] [stdout] | ------ these values have significant drop implementation and will observe changes in drop order under Edition 2024 [INFO] [stdout] 20 | [INFO] [stdout] 21 | result.unwrap().field [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: field `token_name` is never read [INFO] [stdout] --> src/output.rs:9:9 [INFO] [stdout] | [INFO] [stdout] 4 | pub struct Output { [INFO] [stdout] | ------ field in this struct [INFO] [stdout] ... [INFO] [stdout] 9 | pub token_name: TokenStream, [INFO] [stdout] | ^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: aborting due to 3 previous errors; 1 warning emitted [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/field_attributes.rs:94:76 [INFO] [stdout] | [INFO] [stdout] 94 | if let Some((i, attr)) = attrs.iter().enumerate().find(|(_, attr)| attr.path.segments.last().unwrap().ident == "parsable") { [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/impl_struct.rs:13:12 [INFO] [stdout] | [INFO] [stdout] 11 | let field = Field::parse_named(input)?; [INFO] [stdout] | ----- these values have significant drop implementation and will observe changes in drop order under Edition 2024 [INFO] [stdout] 12 | [INFO] [stdout] 13 | Ok(Self { field }) [INFO] [stdout] | ^^^^^^^^^^^^^^ these values have significant drop implementation and will 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] [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/impl_struct.rs:21:5 [INFO] [stdout] | [INFO] [stdout] 19 | let result : Result = syn::parse_str(&string); [INFO] [stdout] | ------ these values have significant drop implementation and will observe changes in drop order under Edition 2024 [INFO] [stdout] 20 | [INFO] [stdout] 21 | result.unwrap().field [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 3 previous errors; 1 warning emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] error: could not compile `parsable-macro` (lib) due to 4 previous errors; 1 warning emitted [INFO] [stderr] warning: build failed, waiting for other jobs to finish... [INFO] [stderr] error: could not compile `parsable-macro` (lib test) due to 4 previous errors; 1 warning emitted [INFO] running `Command { std: "docker" "inspect" "daaa8eb63b976fff56911e30a76340130b6d0adba8e3e72cd8d852b2a83814d4", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "daaa8eb63b976fff56911e30a76340130b6d0adba8e3e72cd8d852b2a83814d4", kill_on_drop: false }` [INFO] [stdout] daaa8eb63b976fff56911e30a76340130b6d0adba8e3e72cd8d852b2a83814d4