[INFO] fetching crate vart 0.4.0... [INFO] checking vart-0.4.0 against try#7014e13d5becc920d4bea3cd87942c8a13d359bf+rustflags=-Dtail_expr_drop_order for pr-129864 [INFO] extracting crate vart 0.4.0 into /workspace/builds/worker-0-tc2/source [INFO] validating manifest of crates.io crate vart 0.4.0 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 vart 0.4.0 [INFO] finished tweaking crates.io crate vart 0.4.0 [INFO] tweaked toml for crates.io crate vart 0.4.0 written to /workspace/builds/worker-0-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] Updating crates.io index [INFO] [stderr] Locking 82 packages to latest compatible versions [INFO] [stderr] Adding anes v0.1.6 (available: v0.2.0) [INFO] [stderr] Adding itertools v0.10.5 (available: v0.13.0) [INFO] [stderr] Adding wasi v0.11.0+wasi-snapshot-preview1 (available: v0.13.2+wasi-0.2.1) [INFO] [stderr] Adding windows-sys v0.52.0 (available: v0.59.0) [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] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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] eabc8a2ad5b816b1d0f983a665b4eb87835fab9d9c35d2f07f2a36bbd97c259e [INFO] running `Command { std: "docker" "start" "-a" "eabc8a2ad5b816b1d0f983a665b4eb87835fab9d9c35d2f07f2a36bbd97c259e", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "eabc8a2ad5b816b1d0f983a665b4eb87835fab9d9c35d2f07f2a36bbd97c259e", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "eabc8a2ad5b816b1d0f983a665b4eb87835fab9d9c35d2f07f2a36bbd97c259e", kill_on_drop: false }` [INFO] [stdout] eabc8a2ad5b816b1d0f983a665b4eb87835fab9d9c35d2f07f2a36bbd97c259e [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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] c9a2498283b59ae2ef76487716c6dbfb66cd9a448b62557eeaf22a6192ffad81 [INFO] running `Command { std: "docker" "start" "-a" "c9a2498283b59ae2ef76487716c6dbfb66cd9a448b62557eeaf22a6192ffad81", kill_on_drop: false }` [INFO] [stderr] Compiling serde v1.0.210 [INFO] [stderr] Checking clap_lex v0.7.2 [INFO] [stderr] Compiling ahash v0.8.11 [INFO] [stderr] Checking half v2.4.1 [INFO] [stderr] Checking ciborium-io v0.2.2 [INFO] [stderr] Checking allocator-api2 v0.2.18 [INFO] [stderr] Checking anes v0.1.6 [INFO] [stderr] Compiling syn v2.0.77 [INFO] [stderr] Checking is-terminal v0.4.13 [INFO] [stderr] Checking criterion-plot v0.5.0 [INFO] [stderr] Checking clap_builder v4.5.18 [INFO] [stderr] Checking ciborium-ll v0.2.2 [INFO] [stderr] Checking clap v4.5.18 [INFO] [stderr] Compiling zerocopy-derive v0.7.35 [INFO] [stderr] Compiling serde_derive v1.0.210 [INFO] [stderr] Checking zerocopy v0.7.35 [INFO] [stderr] Checking ppv-lite86 v0.2.20 [INFO] [stderr] Checking hashbrown v0.14.5 [INFO] [stderr] Checking rand_chacha v0.3.1 [INFO] [stderr] Checking rand v0.8.5 [INFO] [stderr] Checking vart v0.4.0 (/opt/rustwide/workdir) [INFO] [stderr] Checking serde_json v1.0.128 [INFO] [stderr] Checking ciborium v0.2.2 [INFO] [stderr] Checking tinytemplate v1.2.1 [INFO] [stderr] Checking criterion v0.5.1 [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/node.rs:1275:22 [INFO] [stdout] | [INFO] [stdout] 1250 | let mut node = FlatNode::, usize, 4>::new(dummy_prefix.clone()); [INFO] [stdout] | -------- these local bindings with significant drop implementation may observe changes in drop order under Edition 2024 [INFO] [stdout] ... [INFO] [stdout] 1260 | let mut n48 = Node48::, u8>::new(dummy_prefix.clone()); [INFO] [stdout] | ------- these local bindings with significant drop implementation may observe changes in drop order under Edition 2024 [INFO] [stdout] ... [INFO] [stdout] 1270 | let mut n256 = Node256::new(dummy_prefix); [INFO] [stdout] | -------- these local bindings with significant drop implementation may observe changes in drop order under Edition 2024 [INFO] [stdout] ... [INFO] [stdout] 1275 | for child in n256.iter() { [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 `iter::Iter<'_, VariableSizeKey, i32>` has significant drop implementation that will have a different drop order from that of Edition 2021 [INFO] [stdout] --> src/snapshot.rs:218:17 [INFO] [stdout] | [INFO] [stdout] 203 | let mut tree: Tree = Tree::::new(); [INFO] [stdout] | -------- these local bindings with significant drop implementation may observe changes in drop order under Edition 2024 [INFO] [stdout] ... [INFO] [stdout] 213 | let mut snap = tree.create_snapshot(); [INFO] [stdout] | -------- these local bindings with significant drop implementation may observe changes in drop order under Edition 2024 [INFO] [stdout] ... [INFO] [stdout] 218 | let mut reader = snap.iter(); [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 2 previous errors [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] error: could not compile `vart` (lib test) due to 3 previous errors [INFO] running `Command { std: "docker" "inspect" "c9a2498283b59ae2ef76487716c6dbfb66cd9a448b62557eeaf22a6192ffad81", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "c9a2498283b59ae2ef76487716c6dbfb66cd9a448b62557eeaf22a6192ffad81", kill_on_drop: false }` [INFO] [stdout] c9a2498283b59ae2ef76487716c6dbfb66cd9a448b62557eeaf22a6192ffad81