[INFO] fetching crate simple-grid 2.2.1... [INFO] checking simple-grid-2.2.1 against try#4d98531622e1718ae0bc3c7a1ab9cd8938428452+rustflags=-Dtail_expr_drop_order for pr-129604 [INFO] extracting crate simple-grid 2.2.1 into /workspace/builds/worker-1-tc2/source [INFO] validating manifest of crates.io crate simple-grid 2.2.1 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 simple-grid 2.2.1 [INFO] finished tweaking crates.io crate simple-grid 2.2.1 [INFO] tweaked toml for crates.io crate simple-grid 2.2.1 written to /workspace/builds/worker-1-tc2/source/Cargo.toml [INFO] crate crates.io crate simple-grid 2.2.1 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" "+4d98531622e1718ae0bc3c7a1ab9cd8938428452" "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@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+4d98531622e1718ae0bc3c7a1ab9cd8938428452" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 07ff17befebe85ff41615c8bd6265c096cde94c8098a1d2373c3c94ba7b23534 [INFO] running `Command { std: "docker" "start" "-a" "07ff17befebe85ff41615c8bd6265c096cde94c8098a1d2373c3c94ba7b23534", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "07ff17befebe85ff41615c8bd6265c096cde94c8098a1d2373c3c94ba7b23534", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "07ff17befebe85ff41615c8bd6265c096cde94c8098a1d2373c3c94ba7b23534", kill_on_drop: false }` [INFO] [stdout] 07ff17befebe85ff41615c8bd6265c096cde94c8098a1d2373c3c94ba7b23534 [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@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+4d98531622e1718ae0bc3c7a1ab9cd8938428452" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] bcb7240e80c8dda75197460aaf4c282e27dcbe01bdaa7a4cab3faf67ddd0a6c9 [INFO] running `Command { std: "docker" "start" "-a" "bcb7240e80c8dda75197460aaf4c282e27dcbe01bdaa7a4cab3faf67ddd0a6c9", kill_on_drop: false }` [INFO] [stderr] Compiling serde v1.0.118 [INFO] [stderr] Compiling ryu v1.0.5 [INFO] [stderr] Compiling serde_json v1.0.60 [INFO] [stderr] Checking itoa v0.4.7 [INFO] [stderr] Checking simple-grid v2.2.1 (/opt/rustwide/workdir) [INFO] [stdout] warning: function `panic_if_empty` is never used [INFO] [stdout] --> src/utils.rs:74:15 [INFO] [stdout] | [INFO] [stdout] 74 | pub(crate) fn panic_if_empty(grid: &Grid) { [INFO] [stdout] | ^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `panic_if_not_square` is never used [INFO] [stdout] --> src/utils.rs:81:15 [INFO] [stdout] | [INFO] [stdout] 81 | pub(crate) fn panic_if_not_square(grid: &Grid) { [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^ [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/lib.rs:992:9 [INFO] [stdout] | [INFO] [stdout] 987 | pub fn neighbor_indices_of(&'_ self, idx: I) -> impl Iterator + '_ [INFO] [stdout] | ------ these values have significant drop implementation and will observe changes in drop order under Edition 2024 [INFO] [stdout] ... [INFO] [stdout] 992 | idx.neighbors().filter(move |i| self.contains_index(*i)) [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/lib.rs:1022:9 [INFO] [stdout] | [INFO] [stdout] 1018 | pub fn neighbor_cells_of(&self, idx: I) -> impl Iterator [INFO] [stdout] | ------ these values have significant drop implementation and will observe changes in drop order under Edition 2024 [INFO] [stdout] ... [INFO] [stdout] 1022 | self.neighbor_indices_of(idx).map(move |i| &self[i]) [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: these values and local bindings have significant drop implementation that will have a different drop order from that of Edition 2021 [INFO] [stdout] --> src/lib.rs:1046:9 [INFO] [stdout] | [INFO] [stdout] 1041 | pub fn cardinal_neighbor_indices_of(&'_ self, idx: I) -> impl Iterator + '_ [INFO] [stdout] | ------ these values have significant drop implementation and will observe changes in drop order under Edition 2024 [INFO] [stdout] ... [INFO] [stdout] 1046 | idx.cardinal_neighbors() [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: these values and local bindings have significant drop implementation that will have a different drop order from that of Edition 2021 [INFO] [stdout] --> src/lib.rs:1068:9 [INFO] [stdout] | [INFO] [stdout] 1063 | pub fn cardinal_neighbor_cells_of(&self, idx: I) -> impl Iterator [INFO] [stdout] | ------ these values have significant drop implementation and will observe changes in drop order under Edition 2024 [INFO] [stdout] ... [INFO] [stdout] 1068 | self.cardinal_neighbor_indices_of(idx) [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 4 previous errors; 2 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] error: could not compile `simple-grid` (lib) due to 5 previous errors; 2 warnings emitted [INFO] [stderr] warning: build failed, waiting for other jobs to finish... [INFO] running `Command { std: "docker" "inspect" "bcb7240e80c8dda75197460aaf4c282e27dcbe01bdaa7a4cab3faf67ddd0a6c9", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "bcb7240e80c8dda75197460aaf4c282e27dcbe01bdaa7a4cab3faf67ddd0a6c9", kill_on_drop: false }` [INFO] [stdout] bcb7240e80c8dda75197460aaf4c282e27dcbe01bdaa7a4cab3faf67ddd0a6c9