mir_build_adt_defined_here = `{$ty}` defined here mir_build_already_borrowed = cannot borrow value as mutable because it is also borrowed as immutable mir_build_already_mut_borrowed = cannot borrow value as immutable because it is also borrowed as mutable mir_build_assoc_const_in_pattern = associated consts cannot be referenced in patterns mir_build_bindings_with_variant_name = pattern binding `{$name}` is named the same as one of the variants of the type `{$ty_path}` .suggestion = to match on the variant, qualify the path mir_build_borrow = value is borrowed by `{$name}` here mir_build_borrow_of_layout_constrained_field_requires_unsafe = borrow of layout constrained field with interior mutability is unsafe and requires unsafe block .note = references to fields of layout constrained fields lose the constraints. Coupled with interior mutability, the field can be changed to invalid values .label = borrow of layout constrained field with interior mutability mir_build_borrow_of_layout_constrained_field_requires_unsafe_unsafe_op_in_unsafe_fn_allowed = borrow of layout constrained field with interior mutability is unsafe and requires unsafe function or block .note = references to fields of layout constrained fields lose the constraints. Coupled with interior mutability, the field can be changed to invalid values .label = borrow of layout constrained field with interior mutability mir_build_borrow_of_moved_value = borrow of moved value .label = value moved into `{$name}` here .occurs_because_label = move occurs because `{$name}` has type `{$ty}` which does not implement the `Copy` trait .value_borrowed_label = value borrowed here after move .suggestion = borrow this binding in the pattern to avoid moving the value mir_build_call_to_fn_with_requires_unsafe = call to function `{$function}` with `#[target_feature]` is unsafe and requires unsafe block .help = in order for the call to be safe, the context requires the following additional target {$missing_target_features_count -> [1] feature *[count] features }: {$missing_target_features} .note = the {$build_target_features} target {$build_target_features_count -> [1] feature *[count] features } being enabled in the build configuration does not remove the requirement to list {$build_target_features_count -> [1] it *[count] them } in `#[target_feature]` .label = call to function with `#[target_feature]` mir_build_call_to_fn_with_requires_unsafe_unsafe_op_in_unsafe_fn_allowed = call to function `{$function}` with `#[target_feature]` is unsafe and requires unsafe function or block .help = in order for the call to be safe, the context requires the following additional target {$missing_target_features_count -> [1] feature *[count] features }: {$missing_target_features} .note = the {$build_target_features} target {$build_target_features_count -> [1] feature *[count] features } being enabled in the build configuration does not remove the requirement to list {$build_target_features_count -> [1] it *[count] them } in `#[target_feature]` .label = call to function with `#[target_feature]` mir_build_call_to_unsafe_fn_requires_unsafe = call to unsafe function `{$function}` is unsafe and requires unsafe block .note = consult the function's documentation for information on how to avoid undefined behavior .label = call to unsafe function mir_build_call_to_unsafe_fn_requires_unsafe_nameless = call to unsafe function is unsafe and requires unsafe block .note = consult the function's documentation for information on how to avoid undefined behavior .label = call to unsafe function mir_build_call_to_unsafe_fn_requires_unsafe_nameless_unsafe_op_in_unsafe_fn_allowed = call to unsafe function is unsafe and requires unsafe function or block .note = consult the function's documentation for information on how to avoid undefined behavior .label = call to unsafe function mir_build_call_to_unsafe_fn_requires_unsafe_unsafe_op_in_unsafe_fn_allowed = call to unsafe function `{$function}` is unsafe and requires unsafe function or block .note = consult the function's documentation for information on how to avoid undefined behavior .label = call to unsafe function mir_build_confused = missing patterns are not covered because `{$variable}` is interpreted as a constant pattern, not a new variable mir_build_const_param_in_pattern = const parameters cannot be referenced in patterns mir_build_const_pattern_depends_on_generic_parameter = constant pattern depends on a generic parameter mir_build_could_not_eval_const_pattern = could not evaluate constant pattern mir_build_deref_raw_pointer_requires_unsafe = dereference of raw pointer is unsafe and requires unsafe block .note = raw pointers may be null, dangling or unaligned; they can violate aliasing rules and cause data races: all of these are undefined behavior .label = dereference of raw pointer mir_build_deref_raw_pointer_requires_unsafe_unsafe_op_in_unsafe_fn_allowed = dereference of raw pointer is unsafe and requires unsafe function or block .note = raw pointers may be null, dangling or unaligned; they can violate aliasing rules and cause data races: all of these are undefined behavior .label = dereference of raw pointer mir_build_extern_static_requires_unsafe = use of extern static is unsafe and requires unsafe block .note = extern statics are not controlled by the Rust type system: invalid data, aliasing violations or data races will cause undefined behavior .label = use of extern static mir_build_extern_static_requires_unsafe_unsafe_op_in_unsafe_fn_allowed = use of extern static is unsafe and requires unsafe function or block .note = extern statics are not controlled by the Rust type system: invalid data, aliasing violations or data races will cause undefined behavior .label = use of extern static mir_build_float_pattern = floating-point types cannot be used in patterns mir_build_indirect_structural_match = to use a constant of type `{$non_sm_ty}` in a pattern, `{$non_sm_ty}` must be annotated with `#[derive(PartialEq, Eq)]` mir_build_inform_irrefutable = `let` bindings require an "irrefutable pattern", like a `struct` or an `enum` with only one variant mir_build_initializing_type_with_requires_unsafe = initializing type with `rustc_layout_scalar_valid_range` attr is unsafe and requires unsafe block .note = initializing a layout restricted type's field with a value outside the valid range is undefined behavior .label = initializing type with `rustc_layout_scalar_valid_range` attr mir_build_initializing_type_with_requires_unsafe_unsafe_op_in_unsafe_fn_allowed = initializing type with `rustc_layout_scalar_valid_range` attr is unsafe and requires unsafe function or block .note = initializing a layout restricted type's field with a value outside the valid range is undefined behavior .label = initializing type with `rustc_layout_scalar_valid_range` attr mir_build_inline_assembly_requires_unsafe = use of inline assembly is unsafe and requires unsafe block .note = inline assembly is entirely unchecked and can cause undefined behavior .label = use of inline assembly mir_build_inline_assembly_requires_unsafe_unsafe_op_in_unsafe_fn_allowed = use of inline assembly is unsafe and requires unsafe function or block .note = inline assembly is entirely unchecked and can cause undefined behavior .label = use of inline assembly mir_build_interpreted_as_const = introduce a variable instead mir_build_invalid_pattern = `{$non_sm_ty}` cannot be used in patterns mir_build_irrefutable_let_patterns_if_let = irrefutable `if let` {$count -> [one] pattern *[other] patterns } .note = {$count -> [one] this pattern *[other] these patterns } will always match, so the `if let` is useless .help = consider replacing the `if let` with a `let` mir_build_irrefutable_let_patterns_if_let_guard = irrefutable `if let` guard {$count -> [one] pattern *[other] patterns } .note = {$count -> [one] this pattern *[other] these patterns } will always match, so the guard is useless .help = consider removing the guard and adding a `let` inside the match arm mir_build_irrefutable_let_patterns_let_else = irrefutable `let...else` {$count -> [one] pattern *[other] patterns } .note = {$count -> [one] this pattern *[other] these patterns } will always match, so the `else` clause is useless .help = consider removing the `else` clause mir_build_irrefutable_let_patterns_while_let = irrefutable `while let` {$count -> [one] pattern *[other] patterns } .note = {$count -> [one] this pattern *[other] these patterns } will always match, so the loop will never exit .help = consider instead using a `loop {"{"} ... {"}"}` with a `let` inside it mir_build_leading_irrefutable_let_patterns = leading irrefutable {$count -> [one] pattern *[other] patterns } in let chain .note = {$count -> [one] this pattern *[other] these patterns } will always match .help = consider moving {$count -> [one] it *[other] them } outside of the construct mir_build_literal_in_range_out_of_bounds = literal out of range for `{$ty}` .label = this value does not fit into the type `{$ty}` whose range is `{$min}..={$max}` mir_build_lower_range_bound_must_be_less_than_or_equal_to_upper = lower range bound must be less than or equal to upper .label = lower bound larger than upper bound .teach_note = When matching against a range, the compiler verifies that the range is non-empty. Range patterns include both end-points, so this is equivalent to requiring the start of the range to be less than or equal to the end of the range. mir_build_lower_range_bound_must_be_less_than_upper = lower range bound must be less than upper mir_build_more_information = for more information, visit https://doc.rust-lang.org/book/ch18-02-refutability.html mir_build_moved = value is moved into `{$name}` here mir_build_moved_while_borrowed = cannot move out of value because it is borrowed mir_build_multiple_mut_borrows = cannot borrow value as mutable more than once at a time mir_build_mutable_borrow = value is mutably borrowed by `{$name}` here mir_build_mutable_static_requires_unsafe = use of mutable static is unsafe and requires unsafe block .note = mutable statics can be mutated by multiple threads: aliasing violations or data races will cause undefined behavior .label = use of mutable static mir_build_mutable_static_requires_unsafe_unsafe_op_in_unsafe_fn_allowed = use of mutable static is unsafe and requires unsafe function or block .note = mutable statics can be mutated by multiple threads: aliasing violations or data races will cause undefined behavior .label = use of mutable static mir_build_mutation_of_layout_constrained_field_requires_unsafe = mutation of layout constrained field is unsafe and requires unsafe block .note = mutating layout constrained fields cannot statically be checked for valid values .label = mutation of layout constrained field mir_build_mutation_of_layout_constrained_field_requires_unsafe_unsafe_op_in_unsafe_fn_allowed = mutation of layout constrained field is unsafe and requires unsafe function or block .note = mutating layout constrained fields cannot statically be checked for valid values .label = mutation of layout constrained field mir_build_non_const_path = runtime values cannot be referenced in patterns mir_build_non_exhaustive_match_all_arms_guarded = match arms with guards don't count towards exhaustivity mir_build_non_exhaustive_patterns_type_not_empty = non-exhaustive patterns: type `{$ty}` is non-empty .def_note = `{$peeled_ty}` defined here .type_note = the matched value is of type `{$ty}` .non_exhaustive_type_note = the matched value is of type `{$ty}`, which is marked as non-exhaustive .reference_note = references are always considered inhabited .suggestion = ensure that all possible cases are being handled by adding a match arm with a wildcard pattern as shown .help = ensure that all possible cases are being handled by adding a match arm with a wildcard pattern mir_build_non_partial_eq_match = to use a constant of type `{$non_peq_ty}` in a pattern, the type must implement `PartialEq` mir_build_nontrivial_structural_match = to use a constant of type `{$non_sm_ty}` in a pattern, the constant's initializer must be trivial or `{$non_sm_ty}` must be annotated with `#[derive(PartialEq, Eq)]` mir_build_pattern_not_covered = refutable pattern in {$origin} .pattern_ty = the matched value is of type `{$pattern_ty}` mir_build_pointer_pattern = function pointers and raw pointers not derived from integers in patterns behave unpredictably and should not be relied upon. See https://github.com/rust-lang/rust/issues/70861 for details. mir_build_privately_uninhabited = pattern `{$witness_1}` is currently uninhabited, but this variant contains private fields which may become inhabited in the future mir_build_rustc_box_attribute_error = `#[rustc_box]` attribute used incorrectly .attributes = no other attributes may be applied .not_box = `#[rustc_box]` may only be applied to a `Box::new()` call .missing_box = `#[rustc_box]` requires the `owned_box` lang item mir_build_static_in_pattern = statics cannot be referenced in patterns mir_build_suggest_attempted_int_lit = alternatively, you could prepend the pattern with an underscore to define a new named variable; identifiers cannot begin with digits mir_build_suggest_if_let = you might want to use `if let` to ignore the {$count -> [one] variant that isn't *[other] variants that aren't } matched mir_build_suggest_let_else = you might want to use `let else` to handle the {$count -> [one] variant that isn't *[other] variants that aren't } matched mir_build_trailing_irrefutable_let_patterns = trailing irrefutable {$count -> [one] pattern *[other] patterns } in let chain .note = {$count -> [one] this pattern *[other] these patterns } will always match .help = consider moving {$count -> [one] it *[other] them } into the body mir_build_type_not_structural = to use a constant of type `{$non_sm_ty}` in a pattern, `{$non_sm_ty}` must be annotated with `#[derive(PartialEq, Eq)]` mir_build_type_not_structural_more_info = see https://doc.rust-lang.org/stable/std/marker/trait.StructuralEq.html for details mir_build_type_not_structural_tip = the traits must be derived, manual `impl`s are not sufficient mir_build_unconditional_recursion = function cannot return without recursing .label = cannot return without recursing .help = a `loop` may express intention better if this is on purpose mir_build_unconditional_recursion_call_site_label = recursive call site mir_build_union_field_requires_unsafe = access to union field is unsafe and requires unsafe block .note = the field may not be properly initialized: using uninitialized data will cause undefined behavior .label = access to union field mir_build_union_field_requires_unsafe_unsafe_op_in_unsafe_fn_allowed = access to union field is unsafe and requires unsafe function or block .note = the field may not be properly initialized: using uninitialized data will cause undefined behavior .label = access to union field mir_build_union_pattern = cannot use unions in constant patterns mir_build_unreachable_pattern = unreachable pattern .label = unreachable pattern .catchall_label = matches any value mir_build_unsafe_fn_safe_body = an unsafe function restricts its caller, but its body is safe by default mir_build_unsafe_not_inherited = items do not inherit unsafety from separate enclosing items mir_build_unsafe_op_in_unsafe_fn_borrow_of_layout_constrained_field_requires_unsafe = borrow of layout constrained field with interior mutability is unsafe and requires unsafe block (error E0133) .note = references to fields of layout constrained fields lose the constraints. Coupled with interior mutability, the field can be changed to invalid values .label = borrow of layout constrained field with interior mutability mir_build_unsafe_op_in_unsafe_fn_call_to_fn_with_requires_unsafe = call to function `{$function}` with `#[target_feature]` is unsafe and requires unsafe block (error E0133) .help = in order for the call to be safe, the context requires the following additional target {$missing_target_features_count -> [1] feature *[count] features }: {$missing_target_features} .note = the {$build_target_features} target {$build_target_features_count -> [1] feature *[count] features } being enabled in the build configuration does not remove the requirement to list {$build_target_features_count -> [1] it *[count] them } in `#[target_feature]` .label = call to function with `#[target_feature]` mir_build_unsafe_op_in_unsafe_fn_call_to_unsafe_fn_requires_unsafe = call to unsafe function `{$function}` is unsafe and requires unsafe block (error E0133) .note = consult the function's documentation for information on how to avoid undefined behavior .label = call to unsafe function mir_build_unsafe_op_in_unsafe_fn_call_to_unsafe_fn_requires_unsafe_nameless = call to unsafe function is unsafe and requires unsafe block (error E0133) .note = consult the function's documentation for information on how to avoid undefined behavior .label = call to unsafe function mir_build_unsafe_op_in_unsafe_fn_deref_raw_pointer_requires_unsafe = dereference of raw pointer is unsafe and requires unsafe block (error E0133) .note = raw pointers may be null, dangling or unaligned; they can violate aliasing rules and cause data races: all of these are undefined behavior .label = dereference of raw pointer mir_build_unsafe_op_in_unsafe_fn_extern_static_requires_unsafe = use of extern static is unsafe and requires unsafe block (error E0133) .note = extern statics are not controlled by the Rust type system: invalid data, aliasing violations or data races will cause undefined behavior .label = use of extern static mir_build_unsafe_op_in_unsafe_fn_initializing_type_with_requires_unsafe = initializing type with `rustc_layout_scalar_valid_range` attr is unsafe and requires unsafe block (error E0133) .note = initializing a layout restricted type's field with a value outside the valid range is undefined behavior .label = initializing type with `rustc_layout_scalar_valid_range` attr mir_build_unsafe_op_in_unsafe_fn_inline_assembly_requires_unsafe = use of inline assembly is unsafe and requires unsafe block (error E0133) .note = inline assembly is entirely unchecked and can cause undefined behavior .label = use of inline assembly mir_build_unsafe_op_in_unsafe_fn_mutable_static_requires_unsafe = use of mutable static is unsafe and requires unsafe block (error E0133) .note = mutable statics can be mutated by multiple threads: aliasing violations or data races will cause undefined behavior .label = use of mutable static mir_build_unsafe_op_in_unsafe_fn_mutation_of_layout_constrained_field_requires_unsafe = mutation of layout constrained field is unsafe and requires unsafe block (error E0133) .note = mutating layout constrained fields cannot statically be checked for valid values .label = mutation of layout constrained field mir_build_unsafe_op_in_unsafe_fn_union_field_requires_unsafe = access to union field is unsafe and requires unsafe block (error E0133) .note = the field may not be properly initialized: using uninitialized data will cause undefined behavior .label = access to union field mir_build_unsized_pattern = cannot use unsized non-slice type `{$non_sm_ty}` in constant patterns mir_build_unused_unsafe = unnecessary `unsafe` block .label = unnecessary `unsafe` block mir_build_unused_unsafe_enclosing_block_label = because it's nested under this `unsafe` block mir_build_variant_defined_here = not covered mir_build_wrap_suggestion = consider wrapping the function body in an unsafe block