[INFO] fetching crate unix-fd 0.1.0... [INFO] checking unix-fd-0.1.0 against try#c387b04bf028733cd561d62128c8a5eee4bc1458+rustflags=-Dtail_expr_drop_order for pr-130930 [INFO] extracting crate unix-fd 0.1.0 into /workspace/builds/worker-1-tc2/source [INFO] validating manifest of crates.io crate unix-fd 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 unix-fd 0.1.0 [INFO] finished tweaking crates.io crate unix-fd 0.1.0 [INFO] tweaked toml for crates.io crate unix-fd 0.1.0 written to /workspace/builds/worker-1-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] [stderr] Updating crates.io index [INFO] [stderr] Locking 47 packages to latest compatible versions [INFO] [stderr] Adding env_logger v0.9.3 (available: v0.11.5) [INFO] [stderr] Adding errno v0.2.8 (available: v0.3.9) [INFO] [stderr] Adding hermit-abi v0.1.19 (available: v0.4.0) [INFO] [stderr] Adding rand v0.4.6 (available: v0.8.5) [INFO] [stderr] Adding rand_core v0.3.1 (available: v0.6.4) [INFO] [stderr] Adding rand_core v0.4.2 (available: v0.6.4) [INFO] [stderr] Adding rdrand v0.4.0 (available: v0.8.3) [INFO] [stderr] Adding remove_dir_all v0.5.3 (available: v0.8.4) [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-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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] d3c54278a776489deeffe5ecdf3485b07c9e69e08f4dec5a2d0d74ae72711335 [INFO] running `Command { std: "docker" "start" "-a" "d3c54278a776489deeffe5ecdf3485b07c9e69e08f4dec5a2d0d74ae72711335", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "d3c54278a776489deeffe5ecdf3485b07c9e69e08f4dec5a2d0d74ae72711335", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "d3c54278a776489deeffe5ecdf3485b07c9e69e08f4dec5a2d0d74ae72711335", kill_on_drop: false }` [INFO] [stdout] d3c54278a776489deeffe5ecdf3485b07c9e69e08f4dec5a2d0d74ae72711335 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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] 5c58061efc2ac63adeb4a7c9bec9f27350b8ca261c39a076f355abd996899642 [INFO] running `Command { std: "docker" "start" "-a" "5c58061efc2ac63adeb4a7c9bec9f27350b8ca261c39a076f355abd996899642", kill_on_drop: false }` [INFO] [stderr] Checking regex-automata v0.4.7 [INFO] [stderr] Checking errno v0.2.8 [INFO] [stderr] Checking remove_dir_all v0.5.3 [INFO] [stderr] Checking tempdir v0.3.7 [INFO] [stderr] Checking unix-fd v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] error: this value of type `std::result::Result>` has significant drop implementation that will have a different drop order from that of Edition 2021 [INFO] [stdout] --> src/fd.rs:291:15 [INFO] [stdout] | [INFO] [stdout] 290 | pub fn into_rawfd(self) -> std::result::Result { [INFO] [stdout] | ---- these local bindings with significant drop implementation may observe changes in drop order under Edition 2024 [INFO] [stdout] 291 | match Rc::try_unwrap(self.0) { [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: the type `fd::libc::stat` does not permit being left uninitialized [INFO] [stdout] --> src/fd.rs:180:45 [INFO] [stdout] | [INFO] [stdout] 180 | let mut stat: libc::stat = unsafe { mem::MaybeUninit::uninit().assume_init() }; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | | [INFO] [stdout] | this code causes undefined behavior when executed [INFO] [stdout] | help: use `MaybeUninit` instead, and only call `assume_init` after initialization is done [INFO] [stdout] | [INFO] [stdout] = note: integers must be initialized [INFO] [stdout] = note: `#[warn(invalid_value)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: the type `fd::libc::stat` does not permit being left uninitialized [INFO] [stdout] --> src/fd.rs:204:45 [INFO] [stdout] | [INFO] [stdout] 204 | let mut stat: libc::stat = unsafe { mem::MaybeUninit::uninit().assume_init() }; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | | [INFO] [stdout] | this code causes undefined behavior when executed [INFO] [stdout] | help: use `MaybeUninit` instead, and only call `assume_init` after initialization is done [INFO] [stdout] | [INFO] [stdout] = note: integers must be initialized [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: the type `fd::libc::stat` does not permit being left uninitialized [INFO] [stdout] --> src/fd.rs:215:45 [INFO] [stdout] | [INFO] [stdout] 215 | let mut stat: libc::stat = unsafe { mem::MaybeUninit::uninit().assume_init() }; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | | [INFO] [stdout] | this code causes undefined behavior when executed [INFO] [stdout] | help: use `MaybeUninit` instead, and only call `assume_init` after initialization is done [INFO] [stdout] | [INFO] [stdout] = note: integers must be initialized [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: aborting due to 1 previous error; 3 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] error: could not compile `unix-fd` (lib) due to 2 previous errors; 3 warnings emitted [INFO] [stderr] warning: build failed, waiting for other jobs to finish... [INFO] running `Command { std: "docker" "inspect" "5c58061efc2ac63adeb4a7c9bec9f27350b8ca261c39a076f355abd996899642", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "5c58061efc2ac63adeb4a7c9bec9f27350b8ca261c39a076f355abd996899642", kill_on_drop: false }` [INFO] [stdout] 5c58061efc2ac63adeb4a7c9bec9f27350b8ca261c39a076f355abd996899642