[INFO] fetching crate derivative 2.2.0... [INFO] checking derivative-2.2.0 against try#7014e13d5becc920d4bea3cd87942c8a13d359bf+rustflags=-Dtail_expr_drop_order for pr-129864 [INFO] extracting crate derivative 2.2.0 into /workspace/builds/worker-0-tc2/source [INFO] validating manifest of crates.io crate derivative 2.2.0 on toolchain 7014e13d5becc920d4bea3cd87942c8a13d359bf [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+7014e13d5becc920d4bea3cd87942c8a13d359bf" "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-0-tc2/source/Cargo.toml [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+7014e13d5becc920d4bea3cd87942c8a13d359bf" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] Updating crates.io index [INFO] [stderr] Locking 27 packages to latest compatible versions [INFO] [stderr] Adding syn v1.0.109 (available: v2.0.77) [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" "+7014e13d5becc920d4bea3cd87942c8a13d359bf" "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] 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:ceb6ea022f8a89cebbe621bb4987e73a935bd40dfbb726f832cfff4742a5b95a" "/opt/rustwide/cargo-home/bin/cargo" "+7014e13d5becc920d4bea3cd87942c8a13d359bf" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 7ec437dc7dce252a85250a88cf13c85f20443646fdbf134c17d6849dcc454112 [INFO] running `Command { std: "docker" "start" "-a" "7ec437dc7dce252a85250a88cf13c85f20443646fdbf134c17d6849dcc454112", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "7ec437dc7dce252a85250a88cf13c85f20443646fdbf134c17d6849dcc454112", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "7ec437dc7dce252a85250a88cf13c85f20443646fdbf134c17d6849dcc454112", kill_on_drop: false }` [INFO] [stdout] 7ec437dc7dce252a85250a88cf13c85f20443646fdbf134c17d6849dcc454112 [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:ceb6ea022f8a89cebbe621bb4987e73a935bd40dfbb726f832cfff4742a5b95a" "/opt/rustwide/cargo-home/bin/cargo" "+7014e13d5becc920d4bea3cd87942c8a13d359bf" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 32974fa27d12bee04b97d101ecb71c8dbcb495e267ee9eff25bed0a75ffa654f [INFO] running `Command { std: "docker" "start" "-a" "32974fa27d12bee04b97d101ecb71c8dbcb495e267ee9eff25bed0a75ffa654f", kill_on_drop: false }` [INFO] [stderr] warning: no edition set: defaulting to the 2015 edition while the latest is 2021 [INFO] [stderr] Compiling proc-macro2 v1.0.86 [INFO] [stderr] Compiling syn v1.0.109 [INFO] [stderr] Checking unicode-ident v1.0.13 [INFO] [stderr] Checking glob v0.3.1 [INFO] [stderr] Checking quote v1.0.37 [INFO] [stderr] Compiling syn v2.0.77 [INFO] [stderr] Checking derivative v2.2.0 (/opt/rustwide/workdir) [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] [stderr] Compiling serde_derive v1.0.210 [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] [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] running `Command { std: "docker" "inspect" "32974fa27d12bee04b97d101ecb71c8dbcb495e267ee9eff25bed0a75ffa654f", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "32974fa27d12bee04b97d101ecb71c8dbcb495e267ee9eff25bed0a75ffa654f", kill_on_drop: false }` [INFO] [stdout] 32974fa27d12bee04b97d101ecb71c8dbcb495e267ee9eff25bed0a75ffa654f