[INFO] fetching crate simplegraph 0.2.2... [INFO] checking simplegraph-0.2.2 against try#7014e13d5becc920d4bea3cd87942c8a13d359bf+rustflags=-Dtail_expr_drop_order for pr-129864 [INFO] extracting crate simplegraph 0.2.2 into /workspace/builds/worker-2-tc2/source [INFO] validating manifest of crates.io crate simplegraph 0.2.2 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 simplegraph 0.2.2 [INFO] finished tweaking crates.io crate simplegraph 0.2.2 [INFO] tweaked toml for crates.io crate simplegraph 0.2.2 written to /workspace/builds/worker-2-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 17 packages to latest compatible versions [INFO] [stderr] Adding ndarray v0.15.6 (available: v0.16.1) [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-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:ceb6ea022f8a89cebbe621bb4987e73a935bd40dfbb726f832cfff4742a5b95a" "/opt/rustwide/cargo-home/bin/cargo" "+7014e13d5becc920d4bea3cd87942c8a13d359bf" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 660da2161da18e9974cbb1f0ed369ddc49cab5732c24d2b487a334da825a84b0 [INFO] running `Command { std: "docker" "start" "-a" "660da2161da18e9974cbb1f0ed369ddc49cab5732c24d2b487a334da825a84b0", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "660da2161da18e9974cbb1f0ed369ddc49cab5732c24d2b487a334da825a84b0", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "660da2161da18e9974cbb1f0ed369ddc49cab5732c24d2b487a334da825a84b0", kill_on_drop: false }` [INFO] [stdout] 660da2161da18e9974cbb1f0ed369ddc49cab5732c24d2b487a334da825a84b0 [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:ceb6ea022f8a89cebbe621bb4987e73a935bd40dfbb726f832cfff4742a5b95a" "/opt/rustwide/cargo-home/bin/cargo" "+7014e13d5becc920d4bea3cd87942c8a13d359bf" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 1b27326c215e587c09c047aec9e4b1182ae3e0f74ffc1d9e8e825bad038b32f9 [INFO] running `Command { std: "docker" "start" "-a" "1b27326c215e587c09c047aec9e4b1182ae3e0f74ffc1d9e8e825bad038b32f9", kill_on_drop: false }` [INFO] [stderr] Compiling num-traits v0.2.19 [INFO] [stderr] Compiling matrixmultiply v0.3.9 [INFO] [stderr] Checking rawpointer v0.2.1 [INFO] [stderr] Compiling quote v1.0.37 [INFO] [stderr] Compiling syn v2.0.77 [INFO] [stderr] Checking num-complex v0.4.6 [INFO] [stderr] Checking num-integer v0.1.46 [INFO] [stderr] Checking ndarray v0.15.6 [INFO] [stderr] Compiling serde_derive v1.0.210 [INFO] [stderr] Checking serde v1.0.210 [INFO] [stderr] Checking serde_json v1.0.128 [INFO] [stderr] Checking simplegraph v0.2.2 (/opt/rustwide/workdir) [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/matrix_graph.rs:310:23 [INFO] [stdout] | [INFO] [stdout] 303 | let mut graph = MatrixGraph::::new_direct(5); [INFO] [stdout] | --------- these local bindings with significant drop implementation may observe changes in drop order under Edition 2024 [INFO] [stdout] ... [INFO] [stdout] 310 | for (i, n) in graph.node_iterator() { [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/matrix_graph.rs:381:26 [INFO] [stdout] | [INFO] [stdout] 371 | let mut graph: MatrixGraph = MatrixGraph::new_direct(4); [INFO] [stdout] | --------- these local bindings with significant drop implementation may observe changes in drop order under Edition 2024 [INFO] [stdout] ... [INFO] [stdout] 381 | for (i, j, w) in graph.arc_iterator() { [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 `simplegraph` (lib test) due to 3 previous errors [INFO] running `Command { std: "docker" "inspect" "1b27326c215e587c09c047aec9e4b1182ae3e0f74ffc1d9e8e825bad038b32f9", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "1b27326c215e587c09c047aec9e4b1182ae3e0f74ffc1d9e8e825bad038b32f9", kill_on_drop: false }` [INFO] [stdout] 1b27326c215e587c09c047aec9e4b1182ae3e0f74ffc1d9e8e825bad038b32f9