[INFO] fetching crate more-itertools 0.1.6... [INFO] checking more-itertools-0.1.6 against try#7014e13d5becc920d4bea3cd87942c8a13d359bf+rustflags=-Dtail_expr_drop_order for pr-129864 [INFO] extracting crate more-itertools 0.1.6 into /workspace/builds/worker-4-tc2/source [INFO] validating manifest of crates.io crate more-itertools 0.1.6 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 more-itertools 0.1.6 [INFO] finished tweaking crates.io crate more-itertools 0.1.6 [INFO] tweaked toml for crates.io crate more-itertools 0.1.6 written to /workspace/builds/worker-4-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] 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-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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] fe44bede1b4ca2ddfa5009ffb85fcf56dcc86793c922753be79ee43424793564 [INFO] running `Command { std: "docker" "start" "-a" "fe44bede1b4ca2ddfa5009ffb85fcf56dcc86793c922753be79ee43424793564", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "fe44bede1b4ca2ddfa5009ffb85fcf56dcc86793c922753be79ee43424793564", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "fe44bede1b4ca2ddfa5009ffb85fcf56dcc86793c922753be79ee43424793564", kill_on_drop: false }` [INFO] [stdout] fe44bede1b4ca2ddfa5009ffb85fcf56dcc86793c922753be79ee43424793564 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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] e4fd2ceb518b0412daf38cc5ef23963921eae03155ecaf4f1ac2ffa012394c31 [INFO] running `Command { std: "docker" "start" "-a" "e4fd2ceb518b0412daf38cc5ef23963921eae03155ecaf4f1ac2ffa012394c31", kill_on_drop: false }` [INFO] [stderr] Checking more-itertools v0.1.6 (/opt/rustwide/workdir) [INFO] [stdout] warning: unused import: `sum` [INFO] [stdout] --> src/itertools/sum.rs:50:16 [INFO] [stdout] | [INFO] [stdout] 50 | pub(crate) use sum; [INFO] [stdout] | ^^^ [INFO] [stdout] | [INFO] [stdout] note: the lint level is defined here [INFO] [stdout] --> src/lib.rs:1:9 [INFO] [stdout] | [INFO] [stdout] 1 | #![warn(unused_imports)] [INFO] [stdout] | ^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 1 warning emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: this value of type `Result, error::Error>` has significant drop implementation that will have a different drop order from that of Edition 2021 [INFO] [stdout] --> src/grouping/sliced.rs:80:15 [INFO] [stdout] | [INFO] [stdout] 76 | let mut it = sliced(create_seq_from_vec(vec![1,2,3,4,5,6,7,8,9,10,11]), 3, true); [INFO] [stdout] | ------ these local bindings with significant drop implementation may observe changes in drop order under Edition 2024 [INFO] [stdout] ... [INFO] [stdout] 80 | match it.next().unwrap() { [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 `Option, error::Error>>` has significant drop implementation that will have a different drop order from that of Edition 2021 [INFO] [stdout] --> src/grouping/grouper.rs:120:15 [INFO] [stdout] | [INFO] [stdout] 99 | let mut g = grouper(create_seq_from_vec(v), 3, IncompleteType::Fill, Some(0)); [INFO] [stdout] | ----- these local bindings with significant drop implementation may observe changes in drop order under Edition 2024 [INFO] [stdout] ... [INFO] [stdout] 107 | let mut g = grouper(create_seq_from_vec(v), 3, IncompleteType::Ignore, Some(0)); [INFO] [stdout] | ----- these local bindings with significant drop implementation may observe changes in drop order under Edition 2024 [INFO] [stdout] ... [INFO] [stdout] 116 | let mut g = grouper(create_seq_from_vec(v), 3, IncompleteType::Strict, Some(0)); [INFO] [stdout] | ----- these local bindings with significant drop implementation may observe changes in drop order under Edition 2024 [INFO] [stdout] ... [INFO] [stdout] 120 | match g.next() { [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: this value of type `Option, error::Error>>` has significant drop implementation that will have a different drop order from that of Edition 2021 [INFO] [stdout] --> src/windowing/sliding_window.rs:58:15 [INFO] [stdout] | [INFO] [stdout] 45 | let mut w = sliding_windowed(generate_okok_iterator(v), 4); [INFO] [stdout] | ----- these local bindings with significant drop implementation may observe changes in drop order under Edition 2024 [INFO] [stdout] ... [INFO] [stdout] 58 | match w.next() { [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: this value of type `Option, error::Error>>` has significant drop implementation that will have a different drop order from that of Edition 2021 [INFO] [stdout] --> src/windowing/sliding_window.rs:68:15 [INFO] [stdout] | [INFO] [stdout] 67 | let mut w = sliding_windowed(generate_okok_iterator(v), 4); [INFO] [stdout] | ----- these local bindings with significant drop implementation may observe changes in drop order under Edition 2024 [INFO] [stdout] 68 | match w.next() { [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: this value of type `Option, Vec, Vec), error::Error>>` has significant drop implementation that will have a different drop order from that of Edition 2021 [INFO] [stdout] --> src/windowing/windowed_complete.rs:178:15 [INFO] [stdout] | [INFO] [stdout] 106 | let mut wc = windowed_complete(v, 3); [INFO] [stdout] | ------ these local bindings with significant drop implementation may observe changes in drop order under Edition 2024 [INFO] [stdout] ... [INFO] [stdout] 178 | match wc.next() { [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: this value of type `error::Error` has significant drop implementation that will have a different drop order from that of Edition 2021 [INFO] [stdout] --> src/sequence.rs:138:20 [INFO] [stdout] | [INFO] [stdout] 126 | let ret = create_seq_from_iterator_result(v); [INFO] [stdout] | --- [INFO] [stdout] | | [INFO] [stdout] | these local bindings with significant drop implementation may observe changes in drop order under Edition 2024 [INFO] [stdout] | these local bindings with significant drop implementation may observe changes in drop order under Edition 2024 [INFO] [stdout] | these local bindings with significant drop implementation may observe changes in drop order under Edition 2024 [INFO] [stdout] ... [INFO] [stdout] 136 | let ret = create_seq_from_iterator_result(v); [INFO] [stdout] | --- [INFO] [stdout] | | [INFO] [stdout] | these local bindings with significant drop implementation may observe changes in drop order under Edition 2024 [INFO] [stdout] | these local bindings with significant drop implementation may observe changes in drop order under Edition 2024 [INFO] [stdout] | these local bindings with significant drop implementation may observe changes in drop order under Edition 2024 [INFO] [stdout] 137 | [INFO] [stdout] 138 | if let Err(err) = ret { [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 6 previous errors [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] error: could not compile `more-itertools` (lib test) due to 7 previous errors [INFO] running `Command { std: "docker" "inspect" "e4fd2ceb518b0412daf38cc5ef23963921eae03155ecaf4f1ac2ffa012394c31", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "e4fd2ceb518b0412daf38cc5ef23963921eae03155ecaf4f1ac2ffa012394c31", kill_on_drop: false }` [INFO] [stdout] e4fd2ceb518b0412daf38cc5ef23963921eae03155ecaf4f1ac2ffa012394c31