[INFO] fetching crate struct_layout 0.1.0... [INFO] checking struct_layout-0.1.0 against try#c387b04bf028733cd561d62128c8a5eee4bc1458+rustflags=-Dtail_expr_drop_order for pr-130930 [INFO] extracting crate struct_layout 0.1.0 into /workspace/builds/worker-4-tc2/source [INFO] validating manifest of crates.io crate struct_layout 0.1.0 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 struct_layout 0.1.0 [INFO] finished tweaking crates.io crate struct_layout 0.1.0 [INFO] tweaked toml for crates.io crate struct_layout 0.1.0 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] 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] 1a85bc5b87dda5bc215c9b8a06582100fb4a1615359f563bd28811ebfb217a8b [INFO] running `Command { std: "docker" "start" "-a" "1a85bc5b87dda5bc215c9b8a06582100fb4a1615359f563bd28811ebfb217a8b", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "1a85bc5b87dda5bc215c9b8a06582100fb4a1615359f563bd28811ebfb217a8b", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "1a85bc5b87dda5bc215c9b8a06582100fb4a1615359f563bd28811ebfb217a8b", kill_on_drop: false }` [INFO] [stdout] 1a85bc5b87dda5bc215c9b8a06582100fb4a1615359f563bd28811ebfb217a8b [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] 1c9dab1332ab9bc51049260f80e81002fafc891b761931d4f6dfd32ef54e9da0 [INFO] running `Command { std: "docker" "start" "-a" "1c9dab1332ab9bc51049260f80e81002fafc891b761931d4f6dfd32ef54e9da0", kill_on_drop: false }` [INFO] [stderr] Checking struct_layout v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] error: this value of type `proc_macro::TokenStream` has significant drop implementation that will have a different drop order from that of Edition 2021 [INFO] [stdout] --> src/lib.rs:382:7 [INFO] [stdout] | [INFO] [stdout] 375 | let meta = parse_meta(tokens)?; [INFO] [stdout] | ---- these local bindings with significant drop implementation may observe changes in drop order under Edition 2024 [INFO] [stdout] ... [INFO] [stdout] 382 | Some(meta.args.stream().to_string()) [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: this value of type `Meta` has significant drop implementation that will have a different drop order from that of Edition 2021 [INFO] [stdout] --> src/lib.rs:428:11 [INFO] [stdout] | [INFO] [stdout] 423 | let mut tokens = tokens.into_iter(); [INFO] [stdout] | ---------- these local bindings with significant drop implementation may observe changes in drop order under Edition 2024 [INFO] [stdout] ... [INFO] [stdout] 428 | let meta = match parse_meta(&mut tokens) { [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: this value of type `Meta` has significant drop implementation that will have a different drop order from that of Edition 2021 [INFO] [stdout] --> src/lib.rs:528:11 [INFO] [stdout] | [INFO] [stdout] 523 | let mut tokens = tokens.into_iter(); [INFO] [stdout] | ---------- these local bindings with significant drop implementation may observe changes in drop order under Edition 2024 [INFO] [stdout] ... [INFO] [stdout] 528 | let meta = match parse_meta(&mut tokens) { [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: this value of type `proc_macro::TokenStream` has significant drop implementation that will have a different drop order from that of Edition 2021 [INFO] [stdout] --> src/lib.rs:382:7 [INFO] [stdout] | [INFO] [stdout] 375 | let meta = parse_meta(tokens)?; [INFO] [stdout] | ---- these local bindings with significant drop implementation may observe changes in drop order under Edition 2024 [INFO] [stdout] ... [INFO] [stdout] 382 | Some(meta.args.stream().to_string()) [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: field `punct` is never read [INFO] [stdout] --> src/lib.rs:86:2 [INFO] [stdout] | [INFO] [stdout] 84 | struct KeyValue { [INFO] [stdout] | -------- field in this struct [INFO] [stdout] 85 | ident: Ident, [INFO] [stdout] 86 | punct: Punct, [INFO] [stdout] | ^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `KeyValue` 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] error: this value of type `Meta` has significant drop implementation that will have a different drop order from that of Edition 2021 [INFO] [stdout] --> src/lib.rs:428:11 [INFO] [stdout] | [INFO] [stdout] 423 | let mut tokens = tokens.into_iter(); [INFO] [stdout] | ---------- these local bindings with significant drop implementation may observe changes in drop order under Edition 2024 [INFO] [stdout] ... [INFO] [stdout] 428 | let meta = match parse_meta(&mut tokens) { [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] warning: panic message contains braces [INFO] [stdout] --> src/lib.rs:514:84 [INFO] [stdout] | [INFO] [stdout] 514 | None => panic!("parse struct: tuple syntax not supported, struct layout requires {{}} to declare the fields"), [INFO] [stdout] | ^^^^ [INFO] [stdout] | [INFO] [stdout] = note: this message is not used as a format string, but will be in Rust 2021 [INFO] [stdout] = note: `#[warn(non_fmt_panics)]` on by default [INFO] [stdout] help: add a "{}" format string to use the message literally [INFO] [stdout] | [INFO] [stdout] 514 | None => panic!("{}", "parse struct: tuple syntax not supported, struct layout requires {{}} to declare the fields"), [INFO] [stdout] | +++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: this value of type `Meta` has significant drop implementation that will have a different drop order from that of Edition 2021 [INFO] [stdout] --> src/lib.rs:528:11 [INFO] [stdout] | [INFO] [stdout] 523 | let mut tokens = tokens.into_iter(); [INFO] [stdout] | ---------- these local bindings with significant drop implementation may observe changes in drop order under Edition 2024 [INFO] [stdout] ... [INFO] [stdout] 528 | let meta = match parse_meta(&mut tokens) { [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 3 previous errors; 2 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] error: could not compile `struct_layout` (lib) due to 4 previous errors; 2 warnings emitted [INFO] [stderr] warning: build failed, waiting for other jobs to finish... [INFO] [stdout] warning: field `punct` is never read [INFO] [stdout] --> src/lib.rs:86:2 [INFO] [stdout] | [INFO] [stdout] 84 | struct KeyValue { [INFO] [stdout] | -------- field in this struct [INFO] [stdout] 85 | ident: Ident, [INFO] [stdout] 86 | punct: Punct, [INFO] [stdout] | ^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `KeyValue` 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: panic message contains braces [INFO] [stdout] --> src/lib.rs:514:84 [INFO] [stdout] | [INFO] [stdout] 514 | None => panic!("parse struct: tuple syntax not supported, struct layout requires {{}} to declare the fields"), [INFO] [stdout] | ^^^^ [INFO] [stdout] | [INFO] [stdout] = note: this message is not used as a format string, but will be in Rust 2021 [INFO] [stdout] = note: `#[warn(non_fmt_panics)]` on by default [INFO] [stdout] help: add a "{}" format string to use the message literally [INFO] [stdout] | [INFO] [stdout] 514 | None => panic!("{}", "parse struct: tuple syntax not supported, struct layout requires {{}} to declare the fields"), [INFO] [stdout] | +++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: aborting due to 3 previous errors; 2 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] error: could not compile `struct_layout` (lib test) due to 4 previous errors; 2 warnings emitted [INFO] running `Command { std: "docker" "inspect" "1c9dab1332ab9bc51049260f80e81002fafc891b761931d4f6dfd32ef54e9da0", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "1c9dab1332ab9bc51049260f80e81002fafc891b761931d4f6dfd32ef54e9da0", kill_on_drop: false }` [INFO] [stdout] 1c9dab1332ab9bc51049260f80e81002fafc891b761931d4f6dfd32ef54e9da0