[INFO] fetching crate helper_fn 0.1.0... [INFO] checking helper_fn-0.1.0 against try#4d98531622e1718ae0bc3c7a1ab9cd8938428452+rustflags=-Dtail_expr_drop_order for pr-129604 [INFO] extracting crate helper_fn 0.1.0 into /workspace/builds/worker-3-tc2/source [INFO] validating manifest of crates.io crate helper_fn 0.1.0 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 helper_fn 0.1.0 [INFO] finished tweaking crates.io crate helper_fn 0.1.0 [INFO] tweaked toml for crates.io crate helper_fn 0.1.0 written to /workspace/builds/worker-3-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] Blocking waiting for file lock on package cache [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-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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] d08566e75d17e261f0dbb0627bfa0bb052b96da2f43aff20a2eae9f11f74c3d5 [INFO] running `Command { std: "docker" "start" "-a" "d08566e75d17e261f0dbb0627bfa0bb052b96da2f43aff20a2eae9f11f74c3d5", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "d08566e75d17e261f0dbb0627bfa0bb052b96da2f43aff20a2eae9f11f74c3d5", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "d08566e75d17e261f0dbb0627bfa0bb052b96da2f43aff20a2eae9f11f74c3d5", kill_on_drop: false }` [INFO] [stdout] d08566e75d17e261f0dbb0627bfa0bb052b96da2f43aff20a2eae9f11f74c3d5 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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] e67481d11bf5ecfdfbd211168e36bb39ec323df093e938dd88c7739cc0264e32 [INFO] running `Command { std: "docker" "start" "-a" "e67481d11bf5ecfdfbd211168e36bb39ec323df093e938dd88c7739cc0264e32", 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] Compiling proc-macro-error-attr v1.0.4 [INFO] [stderr] Compiling proc-macro-error v1.0.4 [INFO] [stderr] Checking quote v1.0.37 [INFO] [stderr] Checking helper_fn v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: field `colon` is never read [INFO] [stdout] --> src/lib.rs:161:3 [INFO] [stdout] | [INFO] [stdout] 159 | struct CaptureArgWithType { [INFO] [stdout] | ------------------ field in this struct [INFO] [stdout] 160 | capture: CaptureArg, [INFO] [stdout] 161 | colon: Token![:], [INFO] [stdout] | ^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `CaptureArgWithType` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field `0` is never read [INFO] [stdout] --> src/lib.rs:178:7 [INFO] [stdout] | [INFO] [stdout] 178 | Ref(Token![&]), [INFO] [stdout] | --- ^^^^^^^^^ [INFO] [stdout] | | [INFO] [stdout] | field in this variant [INFO] [stdout] | [INFO] [stdout] = note: `CaptureArgKind` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis [INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field [INFO] [stdout] | [INFO] [stdout] 178 | Ref(()), [INFO] [stdout] | ~~ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: fields `0` and `1` are never read [INFO] [stdout] --> src/lib.rs:179:10 [INFO] [stdout] | [INFO] [stdout] 179 | RefMut(Token![&], Token![mut]), [INFO] [stdout] | ------ ^^^^^^^^^ ^^^^^^^^^^^ [INFO] [stdout] | | [INFO] [stdout] | fields in this variant [INFO] [stdout] | [INFO] [stdout] = note: `CaptureArgKind` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis [INFO] [stdout] help: consider changing the fields to be of unit type to suppress this warning while preserving the field numbering, or remove the fields [INFO] [stdout] | [INFO] [stdout] 179 | RefMut((), ()), [INFO] [stdout] | ~~ ~~ [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:70:7 [INFO] [stdout] | [INFO] [stdout] 69 | .map(|arg| -> TokenStream { [INFO] [stdout] | --- these values have significant drop implementation and will observe changes in drop order under Edition 2024 [INFO] [stdout] 70 | / create_macro_def( [INFO] [stdout] 71 | | arg [INFO] [stdout] 72 | | .alias [INFO] [stdout] 73 | | .as_ref() [INFO] [stdout] ... | [INFO] [stdout] 77 | | arg.captures.0.iter(), [INFO] [stdout] 78 | | ) [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/lib.rs:107:10 [INFO] [stdout] | [INFO] [stdout] 106 | let captures; [INFO] [stdout] | -------- these values have significant drop implementation and will observe changes in drop order under Edition 2024 [INFO] [stdout] 107 | Ok(UseHelperFnArg { [INFO] [stdout] | __________^ [INFO] [stdout] 108 | | name: input.parse()?, [INFO] [stdout] 109 | | _paren: parenthesized!(captures in input), [INFO] [stdout] 110 | | captures: captures.parse()?, [INFO] [stdout] 111 | | alias: input.parse().ok(), [INFO] [stdout] 112 | | }) [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 2 previous errors; 3 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field `colon` is never read [INFO] [stdout] --> src/lib.rs:161:3 [INFO] [stdout] | [INFO] [stdout] 159 | struct CaptureArgWithType { [INFO] [stdout] | ------------------ field in this struct [INFO] [stdout] 160 | capture: CaptureArg, [INFO] [stdout] 161 | colon: Token![:], [INFO] [stdout] | ^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `CaptureArgWithType` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] error: could not compile `helper_fn` (lib) due to 3 previous errors; 3 warnings emitted [INFO] [stdout] warning: field `0` is never read [INFO] [stdout] --> src/lib.rs:178:7 [INFO] [stdout] | [INFO] [stdout] 178 | Ref(Token![&]), [INFO] [stdout] | --- ^^^^^^^^^ [INFO] [stdout] | | [INFO] [stdout] | field in this variant [INFO] [stdout] | [INFO] [stdout] = note: `CaptureArgKind` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis [INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field [INFO] [stdout] | [INFO] [stdout] 178 | Ref(()), [INFO] [stdout] | ~~ [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] warning: build failed, waiting for other jobs to finish... [INFO] [stdout] warning: fields `0` and `1` are never read [INFO] [stdout] --> src/lib.rs:179:10 [INFO] [stdout] | [INFO] [stdout] 179 | RefMut(Token![&], Token![mut]), [INFO] [stdout] | ------ ^^^^^^^^^ ^^^^^^^^^^^ [INFO] [stdout] | | [INFO] [stdout] | fields in this variant [INFO] [stdout] | [INFO] [stdout] = note: `CaptureArgKind` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis [INFO] [stdout] help: consider changing the fields to be of unit type to suppress this warning while preserving the field numbering, or remove the fields [INFO] [stdout] | [INFO] [stdout] 179 | RefMut((), ()), [INFO] [stdout] | ~~ ~~ [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:70:7 [INFO] [stdout] | [INFO] [stdout] 69 | .map(|arg| -> TokenStream { [INFO] [stdout] | --- these values have significant drop implementation and will observe changes in drop order under Edition 2024 [INFO] [stdout] 70 | / create_macro_def( [INFO] [stdout] 71 | | arg [INFO] [stdout] 72 | | .alias [INFO] [stdout] 73 | | .as_ref() [INFO] [stdout] ... | [INFO] [stdout] 77 | | arg.captures.0.iter(), [INFO] [stdout] 78 | | ) [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/lib.rs:107:10 [INFO] [stdout] | [INFO] [stdout] 106 | let captures; [INFO] [stdout] | -------- these values have significant drop implementation and will observe changes in drop order under Edition 2024 [INFO] [stdout] 107 | Ok(UseHelperFnArg { [INFO] [stdout] | __________^ [INFO] [stdout] 108 | | name: input.parse()?, [INFO] [stdout] 109 | | _paren: parenthesized!(captures in input), [INFO] [stdout] 110 | | captures: captures.parse()?, [INFO] [stdout] 111 | | alias: input.parse().ok(), [INFO] [stdout] 112 | | }) [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 2 previous errors; 3 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] error: could not compile `helper_fn` (lib test) due to 3 previous errors; 3 warnings emitted [INFO] running `Command { std: "docker" "inspect" "e67481d11bf5ecfdfbd211168e36bb39ec323df093e938dd88c7739cc0264e32", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "e67481d11bf5ecfdfbd211168e36bb39ec323df093e938dd88c7739cc0264e32", kill_on_drop: false }` [INFO] [stdout] e67481d11bf5ecfdfbd211168e36bb39ec323df093e938dd88c7739cc0264e32