[INFO] cloning repository https://github.com/Krahuschluk/rust-flashcards [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/Krahuschluk/rust-flashcards" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FKrahuschluk%2Frust-flashcards", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FKrahuschluk%2Frust-flashcards'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] f55a3566add7b14dd08425ea633d1cd729206cd1 [INFO] checking Krahuschluk/rust-flashcards/f55a3566add7b14dd08425ea633d1cd729206cd1 against try#4d98531622e1718ae0bc3c7a1ab9cd8938428452+rustflags=-Dtail_expr_drop_order for pr-129604 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FKrahuschluk%2Frust-flashcards" "/workspace/builds/worker-6-tc2/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-6-tc2/source'... [INFO] [stderr] done. 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b361711cde075acf1a4c71cb52f50bc009069e1ad4bdef6cec94537a81c298a1 [INFO] running `Command { std: "docker" "start" "-a" "b361711cde075acf1a4c71cb52f50bc009069e1ad4bdef6cec94537a81c298a1", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "b361711cde075acf1a4c71cb52f50bc009069e1ad4bdef6cec94537a81c298a1", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "b361711cde075acf1a4c71cb52f50bc009069e1ad4bdef6cec94537a81c298a1", kill_on_drop: false }` [INFO] [stdout] b361711cde075acf1a4c71cb52f50bc009069e1ad4bdef6cec94537a81c298a1 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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] ac3cb0b1130b430350701c2ee451abccec6f26857828c87f3af5afcdfb9092a4 [INFO] running `Command { std: "docker" "start" "-a" "ac3cb0b1130b430350701c2ee451abccec6f26857828c87f3af5afcdfb9092a4", kill_on_drop: false }` [INFO] [stderr] Compiling libc v0.2.74 [INFO] [stderr] Checking cfg-if v0.1.10 [INFO] 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help: if this is intentional, prefix it with an underscore: `_default` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `default` [INFO] [stdout] --> src/app.rs:151:13 [INFO] [stdout] | [INFO] [stdout] 151 | default => Container::new(Column::new()).into(), [INFO] [stdout] | ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_default` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/app.rs:130:21 [INFO] [stdout] | [INFO] [stdout] 130 | let mut content = Column::new() [INFO] [stdout] | ----^^^^^^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_mut)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `default` [INFO] [stdout] --> src/app.rs:87:13 [INFO] [stdout] | [INFO] [stdout] 87 | default => {} [INFO] [stdout] | ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_default` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `default` [INFO] [stdout] --> src/app.rs:151:13 [INFO] [stdout] | [INFO] [stdout] 151 | default => Container::new(Column::new()).into(), [INFO] [stdout] | ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_default` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/app.rs:130:21 [INFO] [stdout] | [INFO] [stdout] 130 | let mut content = Column::new() [INFO] [stdout] | ----^^^^^^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_mut)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: type `FlashcardState` is more private than the item `FlashcardApp::Flashcard::0` [INFO] [stdout] --> src/app.rs:9:15 [INFO] [stdout] | [INFO] [stdout] 9 | Flashcard(FlashcardState), [INFO] [stdout] | ^^^^^^^^^^^^^^ field `FlashcardApp::Flashcard::0` is reachable at visibility `pub(crate)` [INFO] [stdout] | [INFO] [stdout] note: but type `FlashcardState` is only usable at visibility `pub(self)` [INFO] [stdout] --> src/app.rs:13:1 [INFO] [stdout] | [INFO] [stdout] 13 | struct FlashcardState { [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] = note: `#[warn(private_interfaces)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variants `Menu` and `Database` are never constructed [INFO] [stdout] --> src/app.rs:8:5 [INFO] [stdout] | [INFO] [stdout] 7 | pub enum FlashcardApp { [INFO] [stdout] | ------------ variants in this enum [INFO] [stdout] 8 | Menu, [INFO] [stdout] | ^^^^ [INFO] [stdout] 9 | Flashcard(FlashcardState), [INFO] [stdout] 10 | Database, [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field `db` is never read [INFO] [stdout] --> src/app.rs:15:5 [INFO] [stdout] | [INFO] [stdout] 13 | struct FlashcardState { [INFO] [stdout] | -------------- field in this struct [INFO] [stdout] 14 | index: usize, [INFO] [stdout] 15 | db: Database, [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/app.rs:43:13 [INFO] [stdout] | [INFO] [stdout] 39 | let mut db = Database::connect().unwrap(); [INFO] [stdout] | -- these values have significant drop implementation and will observe changes in drop order under Edition 2024 [INFO] [stdout] ... [INFO] [stdout] 43 | / FlashcardApp::Flashcard(FlashcardState { [INFO] [stdout] 44 | | index: 0, [INFO] [stdout] 45 | | db, [INFO] [stdout] 46 | | words, [INFO] [stdout] ... | [INFO] [stdout] 51 | | show_flag: false, [INFO] [stdout] 52 | | }), [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/app.rs:53:13 [INFO] [stdout] | [INFO] [stdout] 39 | let mut db = Database::connect().unwrap(); [INFO] [stdout] | -- these values have significant drop implementation and will observe changes in drop order under Edition 2024 [INFO] [stdout] ... [INFO] [stdout] 53 | Command::none(), [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/db.rs:30:12 [INFO] [stdout] | [INFO] [stdout] 28 | let connection = Connection::open("test.db")?; [INFO] [stdout] | ---------- these values have significant drop implementation and will observe changes in drop order under Edition 2024 [INFO] [stdout] 29 | [INFO] [stdout] 30 | Ok(Database { [INFO] [stdout] | ____________^ [INFO] [stdout] 31 | | connection, [INFO] [stdout] 32 | | }) [INFO] [stdout] | | ^ [INFO] [stdout] | | | [INFO] [stdout] | | these values have significant drop implementation and will observe changes in drop order under Edition 2024 [INFO] [stdout] | |_________these values have significant drop implementation and will observe changes in drop order under Edition 2024 [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 3 previous errors; 6 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: type `FlashcardState` is more private than the item `FlashcardApp::Flashcard::0` [INFO] [stdout] --> src/app.rs:9:15 [INFO] [stdout] | [INFO] [stdout] 9 | Flashcard(FlashcardState), [INFO] [stdout] | ^^^^^^^^^^^^^^ field `FlashcardApp::Flashcard::0` is reachable at visibility `pub(crate)` [INFO] [stdout] | [INFO] [stdout] note: but type `FlashcardState` is only usable at visibility `pub(self)` [INFO] [stdout] --> src/app.rs:13:1 [INFO] [stdout] | [INFO] [stdout] 13 | struct FlashcardState { [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] = note: `#[warn(private_interfaces)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variants `Menu` and `Database` are never constructed [INFO] [stdout] --> src/app.rs:8:5 [INFO] [stdout] | [INFO] [stdout] 7 | pub enum FlashcardApp { [INFO] [stdout] | ------------ variants in this enum [INFO] [stdout] 8 | Menu, [INFO] [stdout] | ^^^^ [INFO] [stdout] 9 | Flashcard(FlashcardState), [INFO] [stdout] 10 | Database, [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field `db` is never read [INFO] [stdout] --> src/app.rs:15:5 [INFO] [stdout] | [INFO] [stdout] 13 | struct FlashcardState { [INFO] [stdout] | -------------- field in this struct [INFO] [stdout] 14 | index: usize, [INFO] [stdout] 15 | db: Database, [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/app.rs:43:13 [INFO] [stdout] | [INFO] [stdout] 39 | let mut db = Database::connect().unwrap(); [INFO] [stdout] | -- these values have significant drop implementation and will observe changes in drop order under Edition 2024 [INFO] [stdout] ... [INFO] [stdout] 43 | / FlashcardApp::Flashcard(FlashcardState { [INFO] [stdout] 44 | | index: 0, [INFO] [stdout] 45 | | db, [INFO] [stdout] 46 | | words, [INFO] [stdout] ... | [INFO] [stdout] 51 | | show_flag: false, [INFO] [stdout] 52 | | }), [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/app.rs:53:13 [INFO] [stdout] | [INFO] [stdout] 39 | let mut db = Database::connect().unwrap(); [INFO] [stdout] | -- these values have significant drop implementation and will observe changes in drop order under Edition 2024 [INFO] [stdout] ... [INFO] [stdout] 53 | Command::none(), [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/db.rs:30:12 [INFO] [stdout] | [INFO] [stdout] 28 | let connection = Connection::open("test.db")?; [INFO] [stdout] | ---------- these values have significant drop implementation and will observe changes in drop order under Edition 2024 [INFO] [stdout] 29 | [INFO] [stdout] 30 | Ok(Database { [INFO] [stdout] | ____________^ [INFO] [stdout] 31 | | connection, [INFO] [stdout] 32 | | }) [INFO] [stdout] | | ^ [INFO] [stdout] | | | [INFO] [stdout] | | these values have significant drop implementation and will observe changes in drop order under Edition 2024 [INFO] [stdout] | |_________these values have significant drop implementation and will observe changes in drop order under Edition 2024 [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 3 previous errors; 6 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] error: could not compile `rust-flashcards` (bin "rust-flashcards" test) due to 4 previous errors; 6 warnings emitted [INFO] [stderr] warning: build failed, waiting for other jobs to finish... [INFO] [stderr] error: could not compile `rust-flashcards` (bin "rust-flashcards") due to 4 previous errors; 6 warnings emitted [INFO] running `Command { std: "docker" "inspect" "ac3cb0b1130b430350701c2ee451abccec6f26857828c87f3af5afcdfb9092a4", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "ac3cb0b1130b430350701c2ee451abccec6f26857828c87f3af5afcdfb9092a4", kill_on_drop: false }` [INFO] [stdout] ac3cb0b1130b430350701c2ee451abccec6f26857828c87f3af5afcdfb9092a4