Struct tracing_subscriber::fmt::format::Compact

pub struct Compact;

Available on crate features fmt and std only.

Marker for Format that indicates that the compact log format should be used.

The compact format includes fields from all currently entered spans, after the event’s fields. Span fields are ordered (but not grouped) grouped by span, and span names are not shown.A more compact representation of the event’s [Level] is used, and additional information, such as the event’s target, is disabled by default (but can be enabled explicitly).

Example Output

:; cargo run --example fmt-compact
    Finished dev [unoptimized + debuginfo] target(s) in 0.08s
     Running `target/debug/examples/fmt-compact`
2022-02-15T18:43:54.579731Z i preparing to shave yaks number_of_yaks=3
2022-02-15T18:43:54.579802Z i shaving yaks yaks=3
2022-02-15T18:43:54.579836Z . hello! I'm gonna shave a yak excitement="yay!" yaks=3 yak=1
2022-02-15T18:43:54.579861Z . yak shaved successfully yaks=3 yak=1
2022-02-15T18:43:54.579887Z : yak=1 shaved=true yaks=3
2022-02-15T18:43:54.579904Z . yaks_shaved=1 yaks=3
2022-02-15T18:43:54.579926Z . hello! I'm gonna shave a yak excitement="yay!" yaks=3 yak=2
2022-02-15T18:43:54.579941Z . yak shaved successfully yaks=3 yak=2
2022-02-15T18:43:54.579959Z : yak=2 shaved=true yaks=3
2022-02-15T18:43:54.579973Z . yaks_shaved=2 yaks=3
2022-02-15T18:43:54.579994Z . hello! I'm gonna shave a yak excitement="yay!" yaks=3 yak=3
2022-02-15T18:43:54.580013Z ! could not locate yak yaks=3 yak=3
2022-02-15T18:43:54.580032Z : yak=3 shaved=false yaks=3
2022-02-15T18:43:54.580050Z X failed to shave yak yak=3 error=missing yak error.sources=[out of space, out of cash] yaks=3
2022-02-15T18:43:54.580067Z . yaks_shaved=2 yaks=3
2022-02-15T18:43:54.580085Z i yak shaving completed all_yaks_shaved=false

Trait Implementations

impl Clone for Compact

fn clone(&self) -> Compact

Returns a copy of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Debug for Compact

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl Default for Compact

fn default() -> Compact

Returns the “default value” for a type.

impl PartialEq for Compact

fn eq(&self, other: &Compact) -> bool

This method tests for self and other values to be equal, and is used by ==.

fn ne(&self, other: &Rhs) -> bool

This method tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl Copy for Compact

impl Eq for Compact

impl StructuralPartialEq for Compact