src/tools/clippy/tests/ui/format_push_string_unfixable.stderr

error: `format!(..)` appended to existing `String`
  --> tests/ui/format_push_string_unfixable.rs:8:13
   |
LL | /             hex += &(if upper {
LL | |                 format!("{byte:02X}")
   | |                 --------------------- `format!` used here
LL | |
LL | |             } else {
LL | |                 format!("{byte:02x}")
   | |                 --------------------- `format!` used here
LL | |             });
   | |______________^
   |
   = help: consider using `write!` to avoid the extra allocation
   = note: you may need to import the `std::fmt::Write` trait
   = note: `-D clippy::format-push-string` implied by `-D warnings`
   = help: to override `-D warnings` add `#[allow(clippy::format_push_string)]`

error: `format!(..)` appended to existing `String`
  --> tests/ui/format_push_string_unfixable.rs:21:9
   |
LL | /         s += &(if let Some(_a) = Some(1234) {
LL | |             format!("{}", 1234)
   | |             ------------------- `format!` used here
LL | |
LL | |         } else {
LL | |             format!("{}", 1234)
   | |             ------------------- `format!` used here
LL | |         });
   | |__________^
   |
   = help: consider using `write!` to avoid the extra allocation
   = note: you may need to import the `std::fmt::Write` trait

error: `format!(..)` appended to existing `String`
  --> tests/ui/format_push_string_unfixable.rs:28:9
   |
LL | /         s += &(match Some(1234) {
LL | |             Some(_) => format!("{}", 1234),
   | |                        ------------------- `format!` used here
LL | |
LL | |             None => format!("{}", 1234),
   | |                     ------------------- `format!` used here
LL | |         });
   | |__________^
   |
   = help: consider using `write!` to avoid the extra allocation
   = note: you may need to import the `std::fmt::Write` trait

error: `format!(..)` appended to existing `String`
  --> tests/ui/format_push_string_unfixable.rs:41:17
   |
LL |                 string.push_str(&format!("{:?}", 1234));
   |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
   |
   = note: you may need to import the `std::fmt::Write` trait
help: consider using `write!` to avoid the extra allocation
   |
LL -                 string.push_str(&format!("{:?}", 1234));
LL +                 let _ = write!(string, "{:?}", 1234);
   |

error: `format!(..)` appended to existing `String`
  --> tests/ui/format_push_string_unfixable.rs:49:17
   |
LL |                 string.push_str(&format!("{:?}", 1234));
   |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
   |
   = note: you may need to import the `std::fmt::Write` trait
help: consider using `write!` to avoid the extra allocation
   |
LL -                 string.push_str(&format!("{:?}", 1234));
LL +                 let _ = write!(string, "{:?}", 1234);
   |

error: `format!(..)` appended to existing `String`
  --> tests/ui/format_push_string_unfixable.rs:54:17
   |
LL |                 string.push_str(&format!("{:?}", 1234));
   |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
   |
   = note: you may need to import the `std::fmt::Write` trait
help: consider using `write!` to avoid the extra allocation
   |
LL -                 string.push_str(&format!("{:?}", 1234));
LL +                 let _ = write!(string, "{:?}", 1234);
   |

error: `format!(..)` appended to existing `String`
  --> tests/ui/format_push_string_unfixable.rs:62:17
   |
LL |                 string.push_str(&format!("{:?}", 1234));
   |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
   |
   = note: you may need to import the `std::fmt::Write` trait
help: consider using `write!` to avoid the extra allocation
   |
LL -                 string.push_str(&format!("{:?}", 1234));
LL +                 let _ = write!(string, "{:?}", 1234);
   |

error: `format!(..)` appended to existing `String`
  --> tests/ui/format_push_string_unfixable.rs:69:17
   |
LL |                 string.push_str(&format!("{:?}", 1234));
   |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
   |
   = note: you may need to import the `std::fmt::Write` trait
help: consider using `write!` to avoid the extra allocation
   |
LL -                 string.push_str(&format!("{:?}", 1234));
LL +                 let _ = write!(string, "{:?}", 1234);
   |

error: `format!(..)` appended to existing `String`
  --> tests/ui/format_push_string_unfixable.rs:79:17
   |
LL |                 string.push_str(&format!("{:?}", 1234));
   |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
   |
   = note: you may need to import the `std::fmt::Write` trait
help: consider using `write!` to avoid the extra allocation
   |
LL -                 string.push_str(&format!("{:?}", 1234));
LL +                 let _ = write!(string, "{:?}", 1234);
   |

error: `format!(..)` appended to existing `String`
  --> tests/ui/format_push_string_unfixable.rs:84:17
   |
LL |                 string.push_str(&format!("{:?}", 1234));
   |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
   |
   = note: you may need to import the `std::fmt::Write` trait
help: consider using `write!` to avoid the extra allocation
   |
LL -                 string.push_str(&format!("{:?}", 1234));
LL +                 let _ = write!(string, "{:?}", 1234);
   |

error: `format!(..)` appended to existing `String`
  --> tests/ui/format_push_string_unfixable.rs:94:17
   |
LL |                 string.push_str(&format!("{:?}", 1234));
   |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
   |
   = note: you may need to import the `std::fmt::Write` trait
help: consider using `write!` to avoid the extra allocation
   |
LL -                 string.push_str(&format!("{:?}", 1234));
LL +                 let _ = write!(string, "{:?}", 1234);
   |

error: `format!(..)` appended to existing `String`
  --> tests/ui/format_push_string_unfixable.rs:102:17
   |
LL |                 string.push_str(&format!("{:?}", 1234));
   |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
   |
   = note: you may need to import the `std::fmt::Write` trait
help: consider using `write!` to avoid the extra allocation
   |
LL -                 string.push_str(&format!("{:?}", 1234));
LL +                 let _ = write!(string, "{:?}", 1234);
   |

error: `format!(..)` appended to existing `String`
  --> tests/ui/format_push_string_unfixable.rs:107:17
   |
LL |                 string.push_str(&format!("{:?}", 1234));
   |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
   |
   = note: you may need to import the `std::fmt::Write` trait
help: consider using `write!` to avoid the extra allocation
   |
LL -                 string.push_str(&format!("{:?}", 1234));
LL +                 let _ = write!(string, "{:?}", 1234);
   |

error: `format!(..)` appended to existing `String`
  --> tests/ui/format_push_string_unfixable.rs:115:17
   |
LL |                 string.push_str(&format!("{:?}", 1234));
   |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
   |
   = note: you may need to import the `std::fmt::Write` trait
help: consider using `write!` to avoid the extra allocation
   |
LL -                 string.push_str(&format!("{:?}", 1234));
LL +                 let _ = write!(string, "{:?}", 1234);
   |

error: `format!(..)` appended to existing `String`
  --> tests/ui/format_push_string_unfixable.rs:122:17
   |
LL |                 string.push_str(&format!("{:?}", 1234));
   |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
   |
   = note: you may need to import the `std::fmt::Write` trait
help: consider using `write!` to avoid the extra allocation
   |
LL -                 string.push_str(&format!("{:?}", 1234));
LL +                 let _ = write!(string, "{:?}", 1234);
   |

error: `format!(..)` appended to existing `String`
  --> tests/ui/format_push_string_unfixable.rs:132:17
   |
LL |                 string.push_str(&format!("{:?}", 1234));
   |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
   |
   = note: you may need to import the `std::fmt::Write` trait
help: consider using `write!` to avoid the extra allocation
   |
LL -                 string.push_str(&format!("{:?}", 1234));
LL +                 let _ = write!(string, "{:?}", 1234);
   |

error: `format!(..)` appended to existing `String`
  --> tests/ui/format_push_string_unfixable.rs:137:17
   |
LL |                 string.push_str(&format!("{:?}", 1234));
   |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
   |
   = note: you may need to import the `std::fmt::Write` trait
help: consider using `write!` to avoid the extra allocation
   |
LL -                 string.push_str(&format!("{:?}", 1234));
LL +                 let _ = write!(string, "{:?}", 1234);
   |

error: aborting due to 17 previous errors