[INFO] fetching crate structstruck 0.4.1... [INFO] checking structstruck-0.4.1 against try#4d98531622e1718ae0bc3c7a1ab9cd8938428452+rustflags=-Dtail_expr_drop_order for pr-129604 [INFO] extracting crate structstruck 0.4.1 into /workspace/builds/worker-5-tc2/source [INFO] validating manifest of crates.io crate structstruck 0.4.1 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 structstruck 0.4.1 [INFO] finished tweaking crates.io crate structstruck 0.4.1 [INFO] tweaked toml for crates.io crate structstruck 0.4.1 written to /workspace/builds/worker-5-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 8 packages to latest compatible versions [INFO] [stderr] Adding heck v0.4.1 (latest: v0.5.0) [INFO] [stderr] Adding prettyplease v0.1.25 (latest: v0.2.22) [INFO] [stderr] Adding syn v1.0.109 (latest: v2.0.77) [INFO] [stderr] Adding venial v0.5.0 (latest: v0.6.0) [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-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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] dcbfabeee4f09e4ede3f4a3e14543549c201525e423511ec37e1594724740574 [INFO] running `Command { std: "docker" "start" "-a" "dcbfabeee4f09e4ede3f4a3e14543549c201525e423511ec37e1594724740574", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "dcbfabeee4f09e4ede3f4a3e14543549c201525e423511ec37e1594724740574", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "dcbfabeee4f09e4ede3f4a3e14543549c201525e423511ec37e1594724740574", kill_on_drop: false }` [INFO] [stdout] dcbfabeee4f09e4ede3f4a3e14543549c201525e423511ec37e1594724740574 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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] 41d1199d4e9d067fc946456aba25dab01ed064c9b5e110c844e8e679bb83285c [INFO] running `Command { std: "docker" "start" "-a" "41d1199d4e9d067fc946456aba25dab01ed064c9b5e110c844e8e679bb83285c", kill_on_drop: false }` [INFO] [stderr] Compiling syn v1.0.109 [INFO] [stderr] Compiling prettyplease v0.1.25 [INFO] [stderr] Checking heck v0.4.1 [INFO] [stderr] Checking venial v0.5.0 [INFO] [stderr] Checking structstruck v0.4.1 (/opt/rustwide/workdir) [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/imp.rs:192:5 [INFO] [stdout] | [INFO] [stdout] 157 | fn move_out_inner_attrs(input: TokenStream) -> TokenStream { [INFO] [stdout] | ------------------ these values have significant drop implementation and will observe changes in drop order under Edition 2024 [INFO] [stdout] 158 | let mut prefix = vec![]; [INFO] [stdout] | ------ these values have significant drop implementation and will observe changes in drop order under Edition 2024 [INFO] [stdout] 159 | let mut ret = vec![]; [INFO] [stdout] | --- these values have significant drop implementation and will observe changes in drop order under Edition 2024 [INFO] [stdout] ... [INFO] [stdout] 192 | prefix.into_iter().chain(ret.into_iter()).collect() [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/imp.rs:526:5 [INFO] [stdout] | [INFO] [stdout] 525 | pub fn flatten_empty_groups(ts: proc_macro2::TokenStream) -> proc_macro2::TokenStream { [INFO] [stdout] | ---------------------------- these values have significant drop implementation and will observe changes in drop order under Edition 2024 [INFO] [stdout] 526 | / ts.into_iter() [INFO] [stdout] 527 | | .flat_map(|tt| match tt { [INFO] [stdout] 528 | | proc_macro2::TokenTree::Group(g) if g.delimiter() == proc_macro2::Delimiter::None => { [INFO] [stdout] 529 | | flatten_empty_groups(g.stream()) [INFO] [stdout] ... | [INFO] [stdout] 537 | | x => once(x).collect(), [INFO] [stdout] 538 | | }) [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 [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] error: could not compile `structstruck` (lib) due to 3 previous errors [INFO] [stderr] warning: build failed, waiting for other jobs to finish... [INFO] running `Command { std: "docker" "inspect" "41d1199d4e9d067fc946456aba25dab01ed064c9b5e110c844e8e679bb83285c", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "41d1199d4e9d067fc946456aba25dab01ed064c9b5e110c844e8e679bb83285c", kill_on_drop: false }` [INFO] [stdout] 41d1199d4e9d067fc946456aba25dab01ed064c9b5e110c844e8e679bb83285c