[INFO] fetching crate doku-derive 0.21.1... [INFO] checking doku-derive-0.21.1 against try#c387b04bf028733cd561d62128c8a5eee4bc1458+rustflags=-Dtail_expr_drop_order for pr-130930 [INFO] extracting crate doku-derive 0.21.1 into /workspace/builds/worker-4-tc2/source [INFO] validating manifest of crates.io crate doku-derive 0.21.1 on toolchain c387b04bf028733cd561d62128c8a5eee4bc1458 [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c387b04bf028733cd561d62128c8a5eee4bc1458" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking crates.io crate doku-derive 0.21.1 [INFO] finished tweaking crates.io crate doku-derive 0.21.1 [INFO] tweaked toml for crates.io crate doku-derive 0.21.1 written to /workspace/builds/worker-4-tc2/source/Cargo.toml [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c387b04bf028733cd561d62128c8a5eee4bc1458" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] Updating crates.io index [INFO] [stderr] Locking 14 packages to latest compatible versions [INFO] [stderr] Adding darling v0.13.4 (available: v0.20.10) [INFO] [stderr] Adding darling_core v0.13.4 (available: v0.20.10) [INFO] [stderr] Adding darling_macro v0.13.4 (available: v0.20.10) [INFO] [stderr] Adding indoc v0.3.6 (available: v2.0.5) [INFO] [stderr] Adding indoc-impl v0.3.6 (available: v0.3.7) [INFO] [stderr] Adding strsim v0.10.0 (available: v0.11.1) [INFO] [stderr] Adding syn v1.0.109 (available: v2.0.79) [INFO] [stderr] Adding unindent v0.1.11 (available: v0.2.3) [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c387b04bf028733cd561d62128c8a5eee4bc1458" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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@sha256:6252d7ea7fb8caaf7af6d800c5fb250a9cd862b9a7f9508afb3c54fa7fe1102e" "/opt/rustwide/cargo-home/bin/cargo" "+c387b04bf028733cd561d62128c8a5eee4bc1458" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] edee95230ca2979252993d3e03c5d785f70f737d8019449b29f4c22b8faac2ab [INFO] running `Command { std: "docker" "start" "-a" "edee95230ca2979252993d3e03c5d785f70f737d8019449b29f4c22b8faac2ab", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "edee95230ca2979252993d3e03c5d785f70f737d8019449b29f4c22b8faac2ab", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "edee95230ca2979252993d3e03c5d785f70f737d8019449b29f4c22b8faac2ab", kill_on_drop: false }` [INFO] [stdout] edee95230ca2979252993d3e03c5d785f70f737d8019449b29f4c22b8faac2ab [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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@sha256:6252d7ea7fb8caaf7af6d800c5fb250a9cd862b9a7f9508afb3c54fa7fe1102e" "/opt/rustwide/cargo-home/bin/cargo" "+c387b04bf028733cd561d62128c8a5eee4bc1458" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 290a123d68bccab9a7480cae322ebb216e1475dab27fa51371a4cb394756f6c5 [INFO] running `Command { std: "docker" "start" "-a" "290a123d68bccab9a7480cae322ebb216e1475dab27fa51371a4cb394756f6c5", kill_on_drop: false }` [INFO] [stderr] Compiling syn v1.0.109 [INFO] [stderr] Compiling proc-macro-hack v0.5.20+deprecated [INFO] [stderr] Checking strsim v0.10.0 [INFO] [stderr] Checking ident_case v1.0.1 [INFO] [stderr] Checking fnv v1.0.7 [INFO] [stderr] Compiling unindent v0.1.11 [INFO] [stderr] Checking proc-macro2 v1.0.86 [INFO] [stderr] Checking quote v1.0.37 [INFO] [stderr] Checking darling_core v0.13.4 [INFO] [stderr] Compiling indoc-impl v0.3.6 [INFO] [stderr] Checking indoc v0.3.6 [INFO] [stderr] Compiling darling_macro v0.13.4 [INFO] [stderr] Checking darling v0.13.4 [INFO] [stderr] Checking doku-derive v0.21.1 (/opt/rustwide/workdir) [INFO] [stdout] warning: unused import: `Span` [INFO] [stdout] --> src/lib.rs:13:27 [INFO] [stdout] | [INFO] [stdout] 13 | pub use proc_macro2::{Span, TokenStream as TokenStream2}; [INFO] [stdout] | ^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `Span` [INFO] [stdout] --> src/lib.rs:13:27 [INFO] [stdout] | [INFO] [stdout] 13 | pub use proc_macro2::{Span, TokenStream as TokenStream2}; [INFO] [stdout] | ^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: this value of type `std::result::Result` has significant drop implementation that will have a different drop order from that of Edition 2021 [INFO] [stdout] --> src/lib.rs:27:11 [INFO] [stdout] | [INFO] [stdout] 25 | let input = parse_macro_input!(input as syn::DeriveInput); [INFO] [stdout] | ----- these local bindings with significant drop implementation may observe changes in drop order under Edition 2024 [INFO] [stdout] 26 | [INFO] [stdout] 27 | match expand::expand(&input) { [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] warning: fields `krate`, `default`, and `deny_unknown_fields` are never read [INFO] [stdout] --> src/attrs/serde/container.rs:19:9 [INFO] [stdout] | [INFO] [stdout] 13 | pub struct SerdeContainer { [INFO] [stdout] | -------------- fields in this struct [INFO] [stdout] ... [INFO] [stdout] 19 | pub krate: Option, [INFO] [stdout] | ^^^^^ [INFO] [stdout] ... [INFO] [stdout] 22 | pub default: Option, [INFO] [stdout] | ^^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 25 | pub deny_unknown_fields: Option, [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `SerdeContainer` has derived impls for the traits `Debug` and `Clone`, but these are intentionally ignored during dead code analysis [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: fields `default`, `deserialize_with`, `serialize_with`, `skip_serializing_if`, and `with` are never read [INFO] [stdout] --> src/attrs/serde/field.rs:18:9 [INFO] [stdout] | [INFO] [stdout] 13 | pub struct SerdeField { [INFO] [stdout] | ---------- fields in this struct [INFO] [stdout] ... [INFO] [stdout] 18 | pub default: Option, [INFO] [stdout] | ^^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 21 | pub deserialize_with: Option, [INFO] [stdout] | ^^^^^^^^^^^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 30 | pub serialize_with: Option, [INFO] [stdout] | ^^^^^^^^^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 42 | pub skip_serializing_if: Option, [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 45 | pub with: Option, [INFO] [stdout] | ^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `SerdeField` has derived impls for the traits `Debug` and `Clone`, but these are intentionally ignored during dead code analysis [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: fields `deserialize_with`, `other`, `serialize_with`, and `with` are never read [INFO] [stdout] --> src/attrs/serde/variant.rs:18:9 [INFO] [stdout] | [INFO] [stdout] 13 | pub struct SerdeVariant { [INFO] [stdout] | ------------ fields in this struct [INFO] [stdout] ... [INFO] [stdout] 18 | pub deserialize_with: Option, [INFO] [stdout] | ^^^^^^^^^^^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 21 | pub other: Option, [INFO] [stdout] | ^^^^^ [INFO] [stdout] ... [INFO] [stdout] 30 | pub serialize_with: Option, [INFO] [stdout] | ^^^^^^^^^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 42 | pub with: Option, [INFO] [stdout] | ^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `SerdeVariant` has derived impls for the traits `Debug` and `Clone`, but these are intentionally ignored during dead code analysis [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: aborting due to 1 previous error; 4 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: this value of type `std::result::Result` has significant drop implementation that will have a different drop order from that of Edition 2021 [INFO] [stdout] --> src/lib.rs:27:11 [INFO] [stdout] | [INFO] [stdout] 25 | let input = parse_macro_input!(input as syn::DeriveInput); [INFO] [stdout] | ----- these local bindings with significant drop implementation may observe changes in drop order under Edition 2024 [INFO] [stdout] 26 | [INFO] [stdout] 27 | match expand::expand(&input) { [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] warning: fields `krate`, `default`, and `deny_unknown_fields` are never read [INFO] [stdout] --> src/attrs/serde/container.rs:19:9 [INFO] [stdout] | [INFO] [stdout] 13 | pub struct SerdeContainer { [INFO] [stdout] | -------------- fields in this struct [INFO] [stdout] ... [INFO] [stdout] 19 | pub krate: Option, [INFO] [stdout] | ^^^^^ [INFO] [stdout] ... [INFO] [stdout] 22 | pub default: Option, [INFO] [stdout] | ^^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 25 | pub deny_unknown_fields: Option, [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `SerdeContainer` has derived impls for the traits `Debug` and `Clone`, but these are intentionally ignored during dead code analysis [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: fields `default`, `deserialize_with`, `serialize_with`, `skip_serializing_if`, and `with` are never read [INFO] [stdout] --> src/attrs/serde/field.rs:18:9 [INFO] [stdout] | [INFO] [stdout] 13 | pub struct SerdeField { [INFO] [stdout] | ---------- fields in this struct [INFO] [stdout] ... [INFO] [stdout] 18 | pub default: Option, [INFO] [stdout] | ^^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 21 | pub deserialize_with: Option, [INFO] [stdout] | ^^^^^^^^^^^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 30 | pub serialize_with: Option, [INFO] [stdout] | ^^^^^^^^^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 42 | pub skip_serializing_if: Option, [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 45 | pub with: Option, [INFO] [stdout] | ^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `SerdeField` has derived impls for the traits `Debug` and `Clone`, but these are intentionally ignored during dead code analysis [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: fields `deserialize_with`, `other`, `serialize_with`, and `with` are never read [INFO] [stdout] --> src/attrs/serde/variant.rs:18:9 [INFO] [stdout] | [INFO] [stdout] 13 | pub struct SerdeVariant { [INFO] [stdout] | ------------ fields in this struct [INFO] [stdout] ... [INFO] [stdout] 18 | pub deserialize_with: Option, [INFO] [stdout] | ^^^^^^^^^^^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 21 | pub other: Option, [INFO] [stdout] | ^^^^^ [INFO] [stdout] ... [INFO] [stdout] 30 | pub serialize_with: Option, [INFO] [stdout] | ^^^^^^^^^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 42 | pub with: Option, [INFO] [stdout] | ^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `SerdeVariant` has derived impls for the traits `Debug` and `Clone`, but these are intentionally ignored during dead code analysis [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] error: could not compile `doku-derive` (lib test) due to 2 previous errors; 4 warnings emitted [INFO] [stderr] warning: build failed, waiting for other jobs to finish... [INFO] [stdout] error: aborting due to 1 previous error; 4 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] error: could not compile `doku-derive` (lib) due to 2 previous errors; 4 warnings emitted [INFO] running `Command { std: "docker" "inspect" "290a123d68bccab9a7480cae322ebb216e1475dab27fa51371a4cb394756f6c5", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "290a123d68bccab9a7480cae322ebb216e1475dab27fa51371a4cb394756f6c5", kill_on_drop: false }` [INFO] [stdout] 290a123d68bccab9a7480cae322ebb216e1475dab27fa51371a4cb394756f6c5