[INFO] fetching crate derivative 2.2.0... [INFO] checking derivative-2.2.0 against try#c387b04bf028733cd561d62128c8a5eee4bc1458+rustflags=-Dtail_expr_drop_order for pr-130930 [INFO] extracting crate derivative 2.2.0 into /workspace/builds/worker-3-tc2/source [INFO] validating manifest of crates.io crate derivative 2.2.0 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 derivative 2.2.0 [INFO] finished tweaking crates.io crate derivative 2.2.0 [INFO] tweaked toml for crates.io crate derivative 2.2.0 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" "+c387b04bf028733cd561d62128c8a5eee4bc1458" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] [stderr] Updating crates.io index [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] [stderr] Locking 27 packages to latest compatible versions [INFO] [stderr] Adding syn v1.0.109 (available: v2.0.79) [INFO] [stderr] Adding toml v0.5.11 (available: v0.8.19) [INFO] [stderr] Adding trybuild v1.0.22 (available: v1.0.99) [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] [stderr] warning: no edition set: defaulting to the 2015 edition while the latest is 2021 [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] [stderr] Blocking waiting for file lock on package cache [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@sha256:6252d7ea7fb8caaf7af6d800c5fb250a9cd862b9a7f9508afb3c54fa7fe1102e" "/opt/rustwide/cargo-home/bin/cargo" "+c387b04bf028733cd561d62128c8a5eee4bc1458" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 7e622f4eac6b778de552f734002dbb6b605a2cd019371d354efb5ba4a2970fe9 [INFO] running `Command { std: "docker" "start" "-a" "7e622f4eac6b778de552f734002dbb6b605a2cd019371d354efb5ba4a2970fe9", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "7e622f4eac6b778de552f734002dbb6b605a2cd019371d354efb5ba4a2970fe9", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "7e622f4eac6b778de552f734002dbb6b605a2cd019371d354efb5ba4a2970fe9", kill_on_drop: false }` [INFO] [stdout] 7e622f4eac6b778de552f734002dbb6b605a2cd019371d354efb5ba4a2970fe9 [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@sha256:6252d7ea7fb8caaf7af6d800c5fb250a9cd862b9a7f9508afb3c54fa7fe1102e" "/opt/rustwide/cargo-home/bin/cargo" "+c387b04bf028733cd561d62128c8a5eee4bc1458" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 94f385addb6281f012af96fb7b420ea744881d245f3749dbd7ef3c7216c3583e [INFO] running `Command { std: "docker" "start" "-a" "94f385addb6281f012af96fb7b420ea744881d245f3749dbd7ef3c7216c3583e", kill_on_drop: false }` [INFO] [stderr] warning: no edition set: defaulting to the 2015 edition while the latest is 2021 [INFO] [stderr] Compiling syn v1.0.109 [INFO] [stderr] Checking glob v0.3.1 [INFO] [stderr] Compiling syn v2.0.79 [INFO] [stderr] Checking derivative v2.2.0 (/opt/rustwide/workdir) [INFO] [stderr] Compiling serde_derive v1.0.210 [INFO] [stdout] error: this value of type `Vec` has significant drop implementation that will have a different drop order from that of Edition 2021 [INFO] [stdout] --> src/default.rs:19:21 [INFO] [stdout] | [INFO] [stdout] 15 | let default_trait_path = default_trait_path(); [INFO] [stdout] | ------------------ these local bindings with significant drop implementation may observe changes in drop order under Edition 2024 [INFO] [stdout] ... [INFO] [stdout] 19 | let mut defaults = Vec::new(); [INFO] [stdout] | ^^^^^^^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 34 | quote!(#variant_name { #(#defaults),* }) [INFO] [stdout] | ---------------------------------------- [INFO] [stdout] | | [INFO] [stdout] | these local bindings with significant drop implementation may observe changes in drop order under Edition 2024 [INFO] [stdout] | these local bindings with significant drop implementation may observe changes in drop order under Edition 2024 [INFO] [stdout] ... [INFO] [stdout] 48 | quote!(#variant_name ( #(#defaults),* )) [INFO] [stdout] | ---------------------------------------- [INFO] [stdout] | | [INFO] [stdout] | these local bindings with significant drop implementation may observe changes in drop order under Edition 2024 [INFO] [stdout] | these local bindings with significant drop implementation may 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] = note: requested on the command line with `-D tail-expr-drop-order` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field `span` is never read [INFO] [stdout] --> src/ast.rs:34:9 [INFO] [stdout] | [INFO] [stdout] 30 | pub struct Field<'a> { [INFO] [stdout] | ----- field in this struct [INFO] [stdout] ... [INFO] [stdout] 34 | pub span: proc_macro2::Span, [INFO] [stdout] | ^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `Field` 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] error: aborting due to 1 previous error; 1 warning emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] error: could not compile `derivative` (lib) due to 2 previous errors; 1 warning emitted [INFO] [stderr] warning: build failed, waiting for other jobs to finish... [INFO] running `Command { std: "docker" "inspect" "94f385addb6281f012af96fb7b420ea744881d245f3749dbd7ef3c7216c3583e", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "94f385addb6281f012af96fb7b420ea744881d245f3749dbd7ef3c7216c3583e", kill_on_drop: false }` [INFO] [stdout] 94f385addb6281f012af96fb7b420ea744881d245f3749dbd7ef3c7216c3583e