[INFO] fetching crate platelet 0.1.2... [INFO] checking platelet-0.1.2 against try#7014e13d5becc920d4bea3cd87942c8a13d359bf+rustflags=-Dtail_expr_drop_order for pr-129864 [INFO] extracting crate platelet 0.1.2 into /workspace/builds/worker-3-tc2/source [INFO] validating manifest of crates.io crate platelet 0.1.2 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 platelet 0.1.2 [INFO] finished tweaking crates.io crate platelet 0.1.2 [INFO] tweaked toml for crates.io crate platelet 0.1.2 written to /workspace/builds/worker-3-tc2/source/Cargo.toml [INFO] crate crates.io crate platelet 0.1.2 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" "+7014e13d5becc920d4bea3cd87942c8a13d359bf" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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] fce4a8fe61a5000fba01905811c2b7357bdc2902b8eb184471b3ac511c42df2a [INFO] running `Command { std: "docker" "start" "-a" "fce4a8fe61a5000fba01905811c2b7357bdc2902b8eb184471b3ac511c42df2a", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "fce4a8fe61a5000fba01905811c2b7357bdc2902b8eb184471b3ac511c42df2a", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "fce4a8fe61a5000fba01905811c2b7357bdc2902b8eb184471b3ac511c42df2a", kill_on_drop: false }` [INFO] [stdout] fce4a8fe61a5000fba01905811c2b7357bdc2902b8eb184471b3ac511c42df2a [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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] 38fab7042e6046cf9493b091ade8ac7d22583f64f8e361673c43d8c0c7a61ba7 [INFO] running `Command { std: "docker" "start" "-a" "38fab7042e6046cf9493b091ade8ac7d22583f64f8e361673c43d8c0c7a61ba7", kill_on_drop: false }` [INFO] [stderr] Compiling proc-macro2 v1.0.81 [INFO] [stderr] Compiling unicode-ident v1.0.12 [INFO] [stderr] Compiling libc v0.2.154 [INFO] [stderr] Compiling ppv-lite86 v0.2.17 [INFO] [stderr] Compiling siphasher v0.3.11 [INFO] [stderr] Compiling lock_api v0.4.12 [INFO] [stderr] Compiling serde v1.0.201 [INFO] [stderr] Compiling parking_lot_core v0.9.10 [INFO] [stderr] Checking new_debug_unreachable v1.0.6 [INFO] [stderr] Compiling phf_shared v0.10.0 [INFO] [stderr] Checking scopeguard v1.2.0 [INFO] [stderr] Compiling syn v1.0.109 [INFO] [stderr] Checking smallvec v1.13.2 [INFO] [stderr] Checking mac v0.1.1 [INFO] [stderr] Checking memchr v2.7.2 [INFO] [stderr] Checking futf v0.1.5 [INFO] [stderr] Checking utf-8 v0.7.6 [INFO] [stderr] Checking precomputed-hash v0.1.1 [INFO] [stderr] Checking phf v0.10.1 [INFO] [stderr] Checking regex-syntax v0.8.3 [INFO] [stderr] Compiling serde_json v1.0.116 [INFO] [stderr] Checking tendril v0.4.3 [INFO] [stderr] Checking log v0.4.21 [INFO] [stderr] Checking indexmap v2.2.6 [INFO] [stderr] Checking winnow v0.6.8 [INFO] [stderr] Compiling quote v1.0.36 [INFO] [stderr] Checking aho-corasick v1.1.3 [INFO] [stderr] Compiling syn v2.0.60 [INFO] [stderr] Compiling getrandom v0.2.15 [INFO] [stderr] Compiling rand_core v0.6.4 [INFO] [stderr] Checking parking_lot v0.12.2 [INFO] [stderr] Compiling rand_chacha v0.3.1 [INFO] [stderr] Compiling rand v0.8.5 [INFO] [stderr] Checking regex-automata v0.4.6 [INFO] [stderr] Compiling phf_generator v0.10.0 [INFO] [stderr] Compiling string_cache_codegen v0.5.2 [INFO] [stderr] Compiling phf_codegen v0.10.0 [INFO] [stderr] Compiling markup5ever v0.11.0 [INFO] [stderr] Compiling serde_derive v1.0.201 [INFO] [stderr] Checking regex v1.10.4 [INFO] [stderr] Compiling html5ever v0.26.0 [INFO] [stderr] Checking string_cache v0.8.7 [INFO] [stderr] Checking platelet v0.1.2 (/opt/rustwide/workdir) [INFO] [stdout] error: this value of type `Result>` has significant drop implementation that will have a different drop order from that of Edition 2021 [INFO] [stdout] --> src/expression_parser.rs:81:21 [INFO] [stdout] | [INFO] [stdout] 80 | let x = and_expression.parse_next(input)?; [INFO] [stdout] | - these local bindings with significant drop implementation may observe changes in drop order under Edition 2024 [INFO] [stdout] 81 | if let Ok(op) = delimited(ws, "||".value(BinaryOperator::Or), ws).parse_next(input) { [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 `Result>` has significant drop implementation that will have a different drop order from that of Edition 2021 [INFO] [stdout] --> src/expression_parser.rs:91:21 [INFO] [stdout] | [INFO] [stdout] 90 | let x = equality_operation.parse_next(input)?; [INFO] [stdout] | - these local bindings with significant drop implementation may observe changes in drop order under Edition 2024 [INFO] [stdout] 91 | if let Ok(op) = delimited(ws, "&&".value(BinaryOperator::And), ws).parse_next(input) { [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 `Result>` has significant drop implementation that will have a different drop order from that of Edition 2021 [INFO] [stdout] --> src/expression_parser.rs:101:21 [INFO] [stdout] | [INFO] [stdout] 100 | let x = comparison_expression.parse_next(input)?; [INFO] [stdout] | - these local bindings with significant drop implementation may observe changes in drop order under Edition 2024 [INFO] [stdout] 101 | if let Ok(op) = delimited( [INFO] [stdout] | _____________________^ [INFO] [stdout] 102 | | ws, [INFO] [stdout] 103 | | alt(( [INFO] [stdout] 104 | | "==".value(BinaryOperator::EqualTo), [INFO] [stdout] ... | [INFO] [stdout] 108 | | ) [INFO] [stdout] 109 | | .parse_next(input) [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 `Result>` has significant drop implementation that will have a different drop order from that of Edition 2021 [INFO] [stdout] --> src/expression_parser.rs:120:21 [INFO] [stdout] | [INFO] [stdout] 119 | let x = modulo_expression.parse_next(input)?; [INFO] [stdout] | - these local bindings with significant drop implementation may observe changes in drop order under Edition 2024 [INFO] [stdout] 120 | if let Ok(op) = delimited( [INFO] [stdout] | _____________________^ [INFO] [stdout] 121 | | ws, [INFO] [stdout] 122 | | alt(( [INFO] [stdout] 123 | | ">=".value(BinaryOperator::GreterThanOrEqualTo), [INFO] [stdout] ... | [INFO] [stdout] 129 | | ) [INFO] [stdout] 130 | | .parse_next(input) [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 `Result>` has significant drop implementation that will have a different drop order from that of Edition 2021 [INFO] [stdout] --> src/expression_parser.rs:141:21 [INFO] [stdout] | [INFO] [stdout] 140 | let x = additive_expression.parse_next(input)?; [INFO] [stdout] | - these local bindings with significant drop implementation may observe changes in drop order under Edition 2024 [INFO] [stdout] 141 | if let Ok(op) = delimited(ws, "%".value(BinaryOperator::Modulo), ws).parse_next(input) { [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 `Result>` has significant drop implementation that will have a different drop order from that of Edition 2021 [INFO] [stdout] --> src/expression_parser.rs:151:21 [INFO] [stdout] | [INFO] [stdout] 150 | let x = multiplicative_expression.parse_next(input)?; [INFO] [stdout] | - these local bindings with significant drop implementation may observe changes in drop order under Edition 2024 [INFO] [stdout] 151 | if let Ok(op) = delimited( [INFO] [stdout] | _____________________^ [INFO] [stdout] 152 | | ws, [INFO] [stdout] 153 | | alt(( [INFO] [stdout] 154 | | "+".value(BinaryOperator::Add), [INFO] [stdout] ... | [INFO] [stdout] 158 | | ) [INFO] [stdout] 159 | | .parse_next(input) [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 `Result>` has significant drop implementation that will have a different drop order from that of Edition 2021 [INFO] [stdout] --> src/expression_parser.rs:170:21 [INFO] [stdout] | [INFO] [stdout] 169 | let x = unary_expression.parse_next(input)?; [INFO] [stdout] | - these local bindings with significant drop implementation may observe changes in drop order under Edition 2024 [INFO] [stdout] 170 | if let Ok(op) = delimited( [INFO] [stdout] | _____________________^ [INFO] [stdout] 171 | | ws, [INFO] [stdout] 172 | | alt(( [INFO] [stdout] 173 | | "*".value(BinaryOperator::Multiply), [INFO] [stdout] ... | [INFO] [stdout] 177 | | ) [INFO] [stdout] 178 | | .parse_next(input) [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] warning: fields `public_id` and `system_id` are never read [INFO] [stdout] --> src/rcdom.rs:73:9 [INFO] [stdout] | [INFO] [stdout] 71 | Doctype { [INFO] [stdout] | ------- fields in this variant [INFO] [stdout] 72 | name: StrTendril, [INFO] [stdout] 73 | public_id: StrTendril, [INFO] [stdout] | ^^^^^^^^^ [INFO] [stdout] 74 | system_id: StrTendril, [INFO] [stdout] | ^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `NodeData` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: aborting due to 7 previous errors; 1 warning emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] error: could not compile `platelet` (lib) due to 8 previous errors; 1 warning emitted [INFO] [stderr] warning: build failed, waiting for other jobs to finish... [INFO] [stdout] error: this value of type `Result>` has significant drop implementation that will have a different drop order from that of Edition 2021 [INFO] [stdout] --> src/expression_parser.rs:81:21 [INFO] [stdout] | [INFO] [stdout] 80 | let x = and_expression.parse_next(input)?; [INFO] [stdout] | - these local bindings with significant drop implementation may observe changes in drop order under Edition 2024 [INFO] [stdout] 81 | if let Ok(op) = delimited(ws, "||".value(BinaryOperator::Or), ws).parse_next(input) { [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 `Result>` has significant drop implementation that will have a different drop order from that of Edition 2021 [INFO] [stdout] --> src/expression_parser.rs:91:21 [INFO] [stdout] | [INFO] [stdout] 90 | let x = equality_operation.parse_next(input)?; [INFO] [stdout] | - these local bindings with significant drop implementation may observe changes in drop order under Edition 2024 [INFO] [stdout] 91 | if let Ok(op) = delimited(ws, "&&".value(BinaryOperator::And), ws).parse_next(input) { [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 `Result>` has significant drop implementation that will have a different drop order from that of Edition 2021 [INFO] [stdout] --> src/expression_parser.rs:101:21 [INFO] [stdout] | [INFO] [stdout] 100 | let x = comparison_expression.parse_next(input)?; [INFO] [stdout] | - these local bindings with significant drop implementation may observe changes in drop order under Edition 2024 [INFO] [stdout] 101 | if let Ok(op) = delimited( [INFO] [stdout] | _____________________^ [INFO] [stdout] 102 | | ws, [INFO] [stdout] 103 | | alt(( [INFO] [stdout] 104 | | "==".value(BinaryOperator::EqualTo), [INFO] [stdout] ... | [INFO] [stdout] 108 | | ) [INFO] [stdout] 109 | | .parse_next(input) [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 `Result>` has significant drop implementation that will have a different drop order from that of Edition 2021 [INFO] [stdout] --> src/expression_parser.rs:120:21 [INFO] [stdout] | [INFO] [stdout] 119 | let x = modulo_expression.parse_next(input)?; [INFO] [stdout] | - these local bindings with significant drop implementation may observe changes in drop order under Edition 2024 [INFO] [stdout] 120 | if let Ok(op) = delimited( [INFO] [stdout] | _____________________^ [INFO] [stdout] 121 | | ws, [INFO] [stdout] 122 | | alt(( [INFO] [stdout] 123 | | ">=".value(BinaryOperator::GreterThanOrEqualTo), [INFO] [stdout] ... | [INFO] [stdout] 129 | | ) [INFO] [stdout] 130 | | .parse_next(input) [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 `Result>` has significant drop implementation that will have a different drop order from that of Edition 2021 [INFO] [stdout] --> src/expression_parser.rs:141:21 [INFO] [stdout] | [INFO] [stdout] 140 | let x = additive_expression.parse_next(input)?; [INFO] [stdout] | - these local bindings with significant drop implementation may observe changes in drop order under Edition 2024 [INFO] [stdout] 141 | if let Ok(op) = delimited(ws, "%".value(BinaryOperator::Modulo), ws).parse_next(input) { [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 `Result>` has significant drop implementation that will have a different drop order from that of Edition 2021 [INFO] [stdout] --> src/expression_parser.rs:151:21 [INFO] [stdout] | [INFO] [stdout] 150 | let x = multiplicative_expression.parse_next(input)?; [INFO] [stdout] | - these local bindings with significant drop implementation may observe changes in drop order under Edition 2024 [INFO] [stdout] 151 | if let Ok(op) = delimited( [INFO] [stdout] | _____________________^ [INFO] [stdout] 152 | | ws, [INFO] [stdout] 153 | | alt(( [INFO] [stdout] 154 | | "+".value(BinaryOperator::Add), [INFO] [stdout] ... | [INFO] [stdout] 158 | | ) [INFO] [stdout] 159 | | .parse_next(input) [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 `Result>` has significant drop implementation that will have a different drop order from that of Edition 2021 [INFO] [stdout] --> src/expression_parser.rs:170:21 [INFO] [stdout] | [INFO] [stdout] 169 | let x = unary_expression.parse_next(input)?; [INFO] [stdout] | - these local bindings with significant drop implementation may observe changes in drop order under Edition 2024 [INFO] [stdout] 170 | if let Ok(op) = delimited( [INFO] [stdout] | _____________________^ [INFO] [stdout] 171 | | ws, [INFO] [stdout] 172 | | alt(( [INFO] [stdout] 173 | | "*".value(BinaryOperator::Multiply), [INFO] [stdout] ... | [INFO] [stdout] 177 | | ) [INFO] [stdout] 178 | | .parse_next(input) [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] warning: fields `public_id` and `system_id` are never read [INFO] [stdout] --> src/rcdom.rs:73:9 [INFO] [stdout] | [INFO] [stdout] 71 | Doctype { [INFO] [stdout] | ------- fields in this variant [INFO] [stdout] 72 | name: StrTendril, [INFO] [stdout] 73 | public_id: StrTendril, [INFO] [stdout] | ^^^^^^^^^ [INFO] [stdout] 74 | system_id: StrTendril, [INFO] [stdout] | ^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `NodeData` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: aborting due to 7 previous errors; 1 warning emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] error: could not compile `platelet` (lib test) due to 8 previous errors; 1 warning emitted [INFO] running `Command { std: "docker" "inspect" "38fab7042e6046cf9493b091ade8ac7d22583f64f8e361673c43d8c0c7a61ba7", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "38fab7042e6046cf9493b091ade8ac7d22583f64f8e361673c43d8c0c7a61ba7", kill_on_drop: false }` [INFO] [stdout] 38fab7042e6046cf9493b091ade8ac7d22583f64f8e361673c43d8c0c7a61ba7