[INFO] fetching crate clap_builder 4.5.18... [INFO] checking clap_builder-4.5.18 against try#7014e13d5becc920d4bea3cd87942c8a13d359bf+rustflags=-Dtail_expr_drop_order for pr-129864 [INFO] extracting crate clap_builder 4.5.18 into /workspace/builds/worker-6-tc2/source [INFO] validating manifest of crates.io crate clap_builder 4.5.18 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 clap_builder 4.5.18 [INFO] finished tweaking crates.io crate clap_builder 4.5.18 [INFO] tweaked toml for crates.io crate clap_builder 4.5.18 written to /workspace/builds/worker-6-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] 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 61 packages to latest compatible versions [INFO] [stderr] Adding linux-raw-sys v0.4.14 (available: v0.6.5) [INFO] [stderr] Adding terminal_size v0.3.0 (available: v0.4.0) [INFO] [stderr] Adding unicode-width v0.1.14 (available: v0.2.0) [INFO] [stderr] Adding windows-sys v0.48.0 (available: v0.59.0) [INFO] [stderr] Adding windows-sys v0.52.0 (available: v0.59.0) [INFO] [stderr] Adding windows-targets v0.48.5 (available: v0.52.6) [INFO] [stderr] Adding windows_aarch64_gnullvm v0.48.5 (available: v0.52.6) [INFO] [stderr] Adding windows_aarch64_msvc v0.48.5 (available: v0.52.6) [INFO] [stderr] Adding windows_i686_gnu v0.48.5 (available: v0.52.6) [INFO] [stderr] Adding windows_i686_msvc v0.48.5 (available: v0.52.6) [INFO] [stderr] Adding windows_x86_64_gnu v0.48.5 (available: v0.52.6) [INFO] [stderr] Adding windows_x86_64_gnullvm v0.48.5 (available: v0.52.6) [INFO] [stderr] Adding windows_x86_64_msvc v0.48.5 (available: v0.52.6) [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] 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:ceb6ea022f8a89cebbe621bb4987e73a935bd40dfbb726f832cfff4742a5b95a" "/opt/rustwide/cargo-home/bin/cargo" "+7014e13d5becc920d4bea3cd87942c8a13d359bf" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] c6c9316ea1b25dae53e206ee70d692a392a2c3d32443d909c56edb5c873f0a9c [INFO] running `Command { std: "docker" "start" "-a" "c6c9316ea1b25dae53e206ee70d692a392a2c3d32443d909c56edb5c873f0a9c", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "c6c9316ea1b25dae53e206ee70d692a392a2c3d32443d909c56edb5c873f0a9c", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "c6c9316ea1b25dae53e206ee70d692a392a2c3d32443d909c56edb5c873f0a9c", kill_on_drop: false }` [INFO] [stdout] c6c9316ea1b25dae53e206ee70d692a392a2c3d32443d909c56edb5c873f0a9c [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:ceb6ea022f8a89cebbe621bb4987e73a935bd40dfbb726f832cfff4742a5b95a" "/opt/rustwide/cargo-home/bin/cargo" "+7014e13d5becc920d4bea3cd87942c8a13d359bf" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] cdfe59e020c3975c885d472c4af88c24d00715e52fdc0346c84d33d984426216 [INFO] running `Command { std: "docker" "start" "-a" "cdfe59e020c3975c885d472c4af88c24d00715e52fdc0346c84d33d984426216", kill_on_drop: false }` [INFO] [stderr] Checking utf8parse v0.2.2 [INFO] [stderr] Compiling memchr v2.7.4 [INFO] [stderr] Compiling minimal-lexical v0.2.1 [INFO] [stderr] Checking anstyle-query v1.1.1 [INFO] [stderr] Checking anstyle v1.0.8 [INFO] [stderr] Checking unic-char-range v0.9.0 [INFO] [stderr] Checking is_terminal_polyfill v1.70.1 [INFO] [stderr] Checking unic-common v0.9.0 [INFO] [stderr] Checking colorchoice v1.0.2 [INFO] [stderr] Checking strsim v0.11.1 [INFO] [stderr] Checking clap_lex v0.7.2 [INFO] [stderr] Checking unic-ucd-version v0.9.0 [INFO] [stderr] Checking anstyle-parse v0.2.5 [INFO] [stderr] Checking unic-char-property v0.9.0 [INFO] [stderr] Checking unic-emoji-char v0.9.0 [INFO] [stderr] Checking anstream v0.6.15 [INFO] [stderr] Checking clap_builder v4.5.18 (/opt/rustwide/workdir) [INFO] [stderr] Compiling nom v7.1.3 [INFO] [stdout] error: this value of type `impl Iterator` has significant drop implementation that will have a different drop order from that of Edition 2021 [INFO] [stdout] --> src/builder/command.rs:3664:9 [INFO] [stdout] | [INFO] [stdout] 3662 | pub fn find_subcommand(&self, name: impl AsRef) -> Option<&Command> { [INFO] [stdout] | ---- these local bindings with significant drop implementation may observe changes in drop order under Edition 2024 [INFO] [stdout] 3663 | let name = name.as_ref(); [INFO] [stdout] 3664 | self.get_subcommands().find(|s| s.aliases_to(name)) [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 `impl Iterator` has significant drop implementation that will have a different drop order from that of Edition 2021 [INFO] [stdout] --> src/builder/command.rs:3677:9 [INFO] [stdout] | [INFO] [stdout] 3674 | name: impl AsRef, [INFO] [stdout] | ---- these local bindings with significant drop implementation may observe changes in drop order under Edition 2024 [INFO] [stdout] ... [INFO] [stdout] 3677 | self.get_subcommands_mut().find(|s| s.aliases_to(name)) [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 `(Option, Option)` has significant drop implementation that will have a different drop order from that of Edition 2021 [INFO] [stdout] --> src/builder/command.rs:4933:11 [INFO] [stdout] | [INFO] [stdout] 4926 | fn two_elements_of(mut iter: I) -> Option<(T, T)> [INFO] [stdout] | -------- these local bindings with significant drop implementation may observe changes in drop order under Edition 2024 [INFO] [stdout] ... [INFO] [stdout] 4933 | match (first, second) { [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 `std::result::Result, MatchesError>` has significant drop implementation that will have a different drop order from that of Edition 2021 [INFO] [stdout] --> src/parser/matches/arg_matches.rs:1150:19 [INFO] [stdout] | [INFO] [stdout] 1150 | match ok!(self.try_remove_arg_t::(id)) { [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] ::: src/macros.rs:556:9 [INFO] [stdout] | [INFO] [stdout] 556 | / match $expr { [INFO] [stdout] 557 | | Ok(val) => val, [INFO] [stdout] 558 | | Err(err) => { [INFO] [stdout] 559 | | return Err(err); [INFO] [stdout] 560 | | } [INFO] [stdout] 561 | | } [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] | 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] [INFO] [stdout] [INFO] [stdout] error: aborting due to 4 previous errors [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] error: could not compile `clap_builder` (lib) due to 5 previous errors [INFO] [stderr] warning: build failed, waiting for other jobs to finish... [INFO] running `Command { std: "docker" "inspect" "cdfe59e020c3975c885d472c4af88c24d00715e52fdc0346c84d33d984426216", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "cdfe59e020c3975c885d472c4af88c24d00715e52fdc0346c84d33d984426216", kill_on_drop: false }` [INFO] [stdout] cdfe59e020c3975c885d472c4af88c24d00715e52fdc0346c84d33d984426216