[INFO] fetching crate unf 2.1.4... [INFO] checking unf-2.1.4 against try#c387b04bf028733cd561d62128c8a5eee4bc1458+rustflags=-Dtail_expr_drop_order for pr-130930 [INFO] extracting crate unf 2.1.4 into /workspace/builds/worker-2-tc2/source [INFO] validating manifest of crates.io crate unf 2.1.4 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 unf 2.1.4 [INFO] finished tweaking crates.io crate unf 2.1.4 [INFO] tweaked toml for crates.io crate unf 2.1.4 written to /workspace/builds/worker-2-tc2/source/Cargo.toml [INFO] crate crates.io crate unf 2.1.4 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] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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] 07ae811b31dd1fa2e0a5b014d409f8e04926772d30bc5baeaf1d6dcc1cd8072c [INFO] running `Command { std: "docker" "start" "-a" "07ae811b31dd1fa2e0a5b014d409f8e04926772d30bc5baeaf1d6dcc1cd8072c", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "07ae811b31dd1fa2e0a5b014d409f8e04926772d30bc5baeaf1d6dcc1cd8072c", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "07ae811b31dd1fa2e0a5b014d409f8e04926772d30bc5baeaf1d6dcc1cd8072c", kill_on_drop: false }` [INFO] [stdout] 07ae811b31dd1fa2e0a5b014d409f8e04926772d30bc5baeaf1d6dcc1cd8072c [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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] 4b7a79c5147229f1071d72c895ffcc3d85fef5f3463412fc73b6c4a54b4573f8 [INFO] running `Command { std: "docker" "start" "-a" "4b7a79c5147229f1071d72c895ffcc3d85fef5f3463412fc73b6c4a54b4573f8", kill_on_drop: false }` [INFO] [stderr] Compiling libc v0.2.109 [INFO] [stderr] Compiling version_check v0.9.3 [INFO] [stderr] Compiling proc-macro2 v1.0.33 [INFO] [stderr] Compiling maybe-uninit v2.0.0 [INFO] [stderr] Compiling syn v1.0.82 [INFO] [stderr] Compiling log v0.4.14 [INFO] [stderr] Compiling nix v0.18.0 [INFO] [stderr] Compiling unicode-segmentation v1.8.0 [INFO] [stderr] Checking stable_deref_trait v1.2.0 [INFO] [stderr] Checking cfg-if v0.1.10 [INFO] [stderr] Checking textwrap v0.11.0 [INFO] [stderr] Checking predicates-core v1.0.2 [INFO] [stderr] Checking ansi_term v0.12.1 [INFO] [stderr] Checking strsim v0.8.0 [INFO] [stderr] Checking vec_map v0.8.2 [INFO] [stderr] Checking utf8parse v0.2.0 [INFO] [stderr] Checking owning_ref v0.3.3 [INFO] [stderr] Checking ppv-lite86 v0.2.15 [INFO] [stderr] Checking aho-corasick v0.7.18 [INFO] [stderr] Checking itertools v0.10.3 [INFO] [stderr] Compiling doc-comment v0.3.3 [INFO] [stderr] Checking regex-automata v0.1.10 [INFO] [stderr] Checking regex-syntax v0.6.25 [INFO] [stderr] Checking difflib v0.4.0 [INFO] [stderr] Checking termtree v0.2.3 [INFO] [stderr] Checking smallvec v0.6.14 [INFO] [stderr] Checking deunicode v1.3.1 [INFO] [stderr] Checking remove_dir_all v0.5.3 [INFO] [stderr] Checking predicates-tree v1.0.4 [INFO] [stderr] Checking walkdir v2.3.2 [INFO] [stderr] Compiling proc-macro-error-attr v1.0.4 [INFO] [stderr] Compiling proc-macro-error v1.0.4 [INFO] [stderr] Checking bstr v0.2.17 [INFO] [stderr] Compiling heck v0.3.3 [INFO] [stderr] Compiling quote v1.0.10 [INFO] [stderr] Checking dirs-sys-next v0.1.2 [INFO] [stderr] Checking rand v0.4.6 [INFO] [stderr] Checking getrandom v0.2.3 [INFO] [stderr] Checking atty v0.2.14 [INFO] [stderr] Checking wait-timeout v0.2.0 [INFO] [stderr] Checking clap v2.34.0 [INFO] [stderr] Checking dirs-next v1.0.2 [INFO] [stderr] Checking rand_core v0.6.3 [INFO] [stderr] Checking rand_chacha v0.3.1 [INFO] [stderr] Checking predicates v2.1.0 [INFO] [stderr] Checking rand v0.8.4 [INFO] [stderr] Checking assert_cmd v2.0.2 [INFO] [stderr] Checking parking_lot_core v0.2.14 [INFO] [stderr] Checking regex v1.5.4 [INFO] [stderr] Checking parking_lot v0.4.8 [INFO] [stderr] Checking rsfs v0.4.1 [INFO] [stderr] Checking tempfile v3.2.0 [INFO] [stderr] Checking rustyline v6.3.0 [INFO] [stderr] Compiling structopt-derive v0.4.18 [INFO] [stderr] Checking promptly v0.3.0 [INFO] [stderr] Checking structopt v0.3.25 [INFO] [stderr] Checking unf v2.1.4 (/opt/rustwide/workdir) [INFO] [stdout] error: this value of type `std::result::Result<::Metadata, std::io::Error>` has significant drop implementation that will have a different drop order from that of Edition 2021 [INFO] [stdout] --> src/main.rs:243:5 [INFO] [stdout] | [INFO] [stdout] 235 | fn path_exists(fs: &FS, cwd: P1, path: P2) -> bool [INFO] [stdout] | --- ---- these local bindings with significant drop implementation may observe changes in drop order under Edition 2024 [INFO] [stdout] | | [INFO] [stdout] | these local bindings with significant drop implementation may observe changes in drop order under Edition 2024 [INFO] [stdout] ... [INFO] [stdout] 243 | fs.metadata(cwd.join(path)).is_ok() [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 `std::result::Result<::Metadata, std::io::Error>` has significant drop implementation that will have a different drop order from that of Edition 2021 [INFO] [stdout] --> src/main.rs:243:5 [INFO] [stdout] | [INFO] [stdout] 235 | fn path_exists(fs: &FS, cwd: P1, path: P2) -> bool [INFO] [stdout] | --- ---- these local bindings with significant drop implementation may observe changes in drop order under Edition 2024 [INFO] [stdout] | | [INFO] [stdout] | these local bindings with significant drop implementation may observe changes in drop order under Edition 2024 [INFO] [stdout] ... [INFO] [stdout] 243 | fs.metadata(cwd.join(path)).is_ok() [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: aborting due to 1 previous error [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] error: could not compile `unf` (bin "unf") due to 2 previous errors [INFO] [stderr] warning: build failed, waiting for other jobs to finish... [INFO] [stdout] error: aborting due to 1 previous error [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] error: could not compile `unf` (bin "unf" test) due to 2 previous errors [INFO] running `Command { std: "docker" "inspect" "4b7a79c5147229f1071d72c895ffcc3d85fef5f3463412fc73b6c4a54b4573f8", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "4b7a79c5147229f1071d72c895ffcc3d85fef5f3463412fc73b6c4a54b4573f8", kill_on_drop: false }` [INFO] [stdout] 4b7a79c5147229f1071d72c895ffcc3d85fef5f3463412fc73b6c4a54b4573f8