rust/tests/ui/format_collect.stderr

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2023-07-06 17:45:37 -05:00
error: use of `format!` to build up a string from an iterator
--> $DIR/format_collect.rs:5:5
|
LL | bytes.iter().map(|b| format!("{b:02X}")).collect()
| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
|
help: call `fold` instead
--> $DIR/format_collect.rs:5:18
|
LL | bytes.iter().map(|b| format!("{b:02X}")).collect()
| ^^^
help: ... and use the `write!` macro here
--> $DIR/format_collect.rs:5:26
|
LL | bytes.iter().map(|b| format!("{b:02X}")).collect()
| ^^^^^^^^^^^^^^^^^^
= note: this can be written more efficiently by appending to a `String` directly
= note: `-D clippy::format-collect` implied by `-D warnings`
error: use of `format!` to build up a string from an iterator
--> $DIR/format_collect.rs:19:5
|
LL | / (1..10)
LL | | .map(|s| {
LL | | let y = 1;
LL | | format!("{s} {y}")
LL | | })
LL | | .collect()
| |__________________^
|
help: call `fold` instead
--> $DIR/format_collect.rs:20:10
|
LL | .map(|s| {
| ^^^
help: ... and use the `write!` macro here
--> $DIR/format_collect.rs:22:13
|
LL | format!("{s} {y}")
| ^^^^^^^^^^^^^^^^^^
= note: this can be written more efficiently by appending to a `String` directly
error: aborting due to 2 previous errors