[INFO] fetching crate proc-macro-rules 0.4.0... [INFO] checking proc-macro-rules-0.4.0 against try#c387b04bf028733cd561d62128c8a5eee4bc1458+rustflags=-Dtail_expr_drop_order for pr-130930 [INFO] extracting crate proc-macro-rules 0.4.0 into /workspace/builds/worker-6-tc2/source [INFO] validating manifest of crates.io crate proc-macro-rules 0.4.0 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 proc-macro-rules 0.4.0 [INFO] removed 0 missing examples [INFO] finished tweaking crates.io crate proc-macro-rules 0.4.0 [INFO] tweaked toml for crates.io crate proc-macro-rules 0.4.0 written to /workspace/builds/worker-6-tc2/source/Cargo.toml [INFO] crate crates.io crate proc-macro-rules 0.4.0 already has a lockfile, it will not be regenerated [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] 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-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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] ece6433e857c1e2309b58f33230b64b3c1b87bd6e1d231bbf8ab4d2d21386c95 [INFO] running `Command { std: "docker" "start" "-a" "ece6433e857c1e2309b58f33230b64b3c1b87bd6e1d231bbf8ab4d2d21386c95", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "ece6433e857c1e2309b58f33230b64b3c1b87bd6e1d231bbf8ab4d2d21386c95", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "ece6433e857c1e2309b58f33230b64b3c1b87bd6e1d231bbf8ab4d2d21386c95", kill_on_drop: false }` [INFO] [stdout] ece6433e857c1e2309b58f33230b64b3c1b87bd6e1d231bbf8ab4d2d21386c95 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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] a180e0c0f0701cd96740e091209b8046df987a351cc7ef38d639ab14ae0c57aa [INFO] running `Command { std: "docker" "start" "-a" "a180e0c0f0701cd96740e091209b8046df987a351cc7ef38d639ab14ae0c57aa", kill_on_drop: false }` [INFO] [stderr] Compiling proc-macro2 v1.0.69 [INFO] [stderr] Checking unicode-ident v1.0.12 [INFO] [stderr] Checking quote v1.0.33 [INFO] [stderr] Checking syn v2.0.39 [INFO] [stderr] Compiling proc-macro-rules-macros v0.4.0 [INFO] [stderr] Checking proc-macro-rules v0.4.0 (/opt/rustwide/workdir) [INFO] [stdout] error: this value of type `proc_macro2::TokenStream` has significant drop implementation that will have a different drop order from that of Edition 2021 [INFO] [stdout] --> examples/macro_rules.rs:36:12 [INFO] [stdout] | [INFO] [stdout] 36 | rules!(input.into() => { [INFO] [stdout] | ^^^^^^^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 40 | ( $( $x:expr ),+ ) => { quote! { [INFO] [stdout] | _________________________________- [INFO] [stdout] 41 | | let mut temp_vec = Vec::new(); [INFO] [stdout] 42 | | #( [INFO] [stdout] 43 | | temp_vec.push(#x); [INFO] [stdout] 44 | | )* [INFO] [stdout] 45 | | temp_vec [INFO] [stdout] 46 | | }} [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] error: aborting due to 1 previous error [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] error: could not compile `proc-macro-rules` (example "macro_rules") due to 2 previous errors [INFO] running `Command { std: "docker" "inspect" "a180e0c0f0701cd96740e091209b8046df987a351cc7ef38d639ab14ae0c57aa", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "a180e0c0f0701cd96740e091209b8046df987a351cc7ef38d639ab14ae0c57aa", kill_on_drop: false }` [INFO] [stdout] a180e0c0f0701cd96740e091209b8046df987a351cc7ef38d639ab14ae0c57aa