[INFO] fetching crate struct-variant 1.0.2... [INFO] checking struct-variant-1.0.2 against try#4d98531622e1718ae0bc3c7a1ab9cd8938428452+rustflags=-Dtail_expr_drop_order for pr-129604 [INFO] extracting crate struct-variant 1.0.2 into /workspace/builds/worker-7-tc2/source [INFO] validating manifest of crates.io crate struct-variant 1.0.2 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 struct-variant 1.0.2 [INFO] finished tweaking crates.io crate struct-variant 1.0.2 [INFO] tweaked toml for crates.io crate struct-variant 1.0.2 written to /workspace/builds/worker-7-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 39 packages to latest compatible versions [INFO] [stderr] Adding itertools v0.10.5 (latest: v0.13.0) [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-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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] bc7047aae492a28f5413269ac8097cd596e622e85cbf9a4e6458c98a89ee788e [INFO] running `Command { std: "docker" "start" "-a" "bc7047aae492a28f5413269ac8097cd596e622e85cbf9a4e6458c98a89ee788e", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "bc7047aae492a28f5413269ac8097cd596e622e85cbf9a4e6458c98a89ee788e", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "bc7047aae492a28f5413269ac8097cd596e622e85cbf9a4e6458c98a89ee788e", kill_on_drop: false }` [INFO] [stdout] bc7047aae492a28f5413269ac8097cd596e622e85cbf9a4e6458c98a89ee788e [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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] fc4974e00d8c5f4d883cb8b20698714aeedd2997957534397c7632a3eb04e012 [INFO] running `Command { std: "docker" "start" "-a" "fc4974e00d8c5f4d883cb8b20698714aeedd2997957534397c7632a3eb04e012", kill_on_drop: false }` [INFO] [stderr] Checking hashbrown v0.14.5 [INFO] [stderr] Checking equivalent v1.0.1 [INFO] [stderr] Checking winnow v0.6.18 [INFO] [stderr] Checking ryu v1.0.18 [INFO] [stderr] Compiling trybuild v1.0.99 [INFO] [stderr] Checking memchr v2.7.4 [INFO] [stderr] Checking either v1.13.0 [INFO] [stderr] Checking itoa v1.0.11 [INFO] [stderr] Checking glob v0.3.1 [INFO] [stderr] Checking proc-macro2 v1.0.86 [INFO] [stderr] Compiling serde_json v1.0.127 [INFO] [stderr] Checking serde v1.0.209 [INFO] [stderr] Checking termcolor v1.4.1 [INFO] [stderr] Compiling syn v2.0.77 [INFO] [stderr] Checking quote v1.0.37 [INFO] [stderr] Checking itertools v0.10.5 [INFO] [stderr] Checking syn v1.0.109 [INFO] [stderr] Checking indexmap v2.5.0 [INFO] [stderr] Compiling serde_derive v1.0.209 [INFO] [stderr] Checking proc-macro-error v1.0.4 [INFO] [stderr] Checking struct-variant v1.0.2 (/opt/rustwide/workdir) [INFO] [stdout] warning: field `paren_token` is never read [INFO] [stdout] --> src/lib.rs:36:6 [INFO] [stdout] | [INFO] [stdout] 35 | struct Field { [INFO] [stdout] | ----- field in this struct [INFO] [stdout] 36 | pub paren_token: Paren, [INFO] [stdout] | ^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: fields `enum_token` and `brace_token` are never read [INFO] [stdout] --> src/lib.rs:120:6 [INFO] [stdout] | [INFO] [stdout] 117 | struct VariantEnum { [INFO] [stdout] | ----------- fields in this struct [INFO] [stdout] ... [INFO] [stdout] 120 | pub enum_token: Token![enum], [INFO] [stdout] | ^^^^^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 123 | pub brace_token: Brace, [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:44:6 [INFO] [stdout] | [INFO] [stdout] 43 | let content; [INFO] [stdout] | ------- these values have significant drop implementation and will observe changes in drop order under Edition 2024 [INFO] [stdout] 44 | Ok(Field { [INFO] [stdout] | ____________^ [INFO] [stdout] 45 | | paren_token: parenthesized!(content in input), [INFO] [stdout] 46 | | path: content.parse()?, [INFO] [stdout] 47 | | }) [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:131:6 [INFO] [stdout] | [INFO] [stdout] 130 | let content; [INFO] [stdout] | ------- these values have significant drop implementation and will observe changes in drop order under Edition 2024 [INFO] [stdout] 131 | Ok(VariantEnum { [INFO] [stdout] | ____________^ [INFO] [stdout] 132 | | attrs: input.call(Attribute::parse_outer)?, [INFO] [stdout] 133 | | vis: input.parse()?, [INFO] [stdout] 134 | | enum_token: input.parse()?, [INFO] [stdout] ... | [INFO] [stdout] 138 | | variants: content.parse_terminated(Variant::parse)?, [INFO] [stdout] 139 | | }) [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; 2 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] error: could not compile `struct-variant` (lib) due to 3 previous errors; 2 warnings emitted [INFO] [stderr] warning: build failed, waiting for other jobs to finish... [INFO] running `Command { std: "docker" "inspect" "fc4974e00d8c5f4d883cb8b20698714aeedd2997957534397c7632a3eb04e012", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "fc4974e00d8c5f4d883cb8b20698714aeedd2997957534397c7632a3eb04e012", kill_on_drop: false }` [INFO] [stdout] fc4974e00d8c5f4d883cb8b20698714aeedd2997957534397c7632a3eb04e012