warning: the borrowed expression implements the required traits
   --> src/flamegraph/mod.rs:919:21
    |
919 |     svg.write_event(&cache_rect)
    |                     ^^^^^^^^^^^ help: change this to: `cache_rect`
    |
    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_borrows_for_generic_args

warning: the borrowed expression implements the required traits
   --> src/flamegraph/mod.rs:769:25
    |
769 |         svg.write_event(&cache_g)?;
    |                         ^^^^^^^^ help: change this to: `cache_g`
    |
    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_borrows_for_generic_args

warning: the borrowed expression implements the required traits
   --> src/flamegraph/mod.rs:762:29
    |
762 |             svg.write_event(&cache_g)?;
    |                             ^^^^^^^^ help: change this to: `cache_g`
    |
    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_borrows_for_generic_args

warning: the borrowed expression implements the required traits
   --> src/flamegraph/mod.rs:758:29
    |
758 |             svg.write_event(&cache_a)?;
    |                             ^^^^^^^^ help: change this to: `cache_a`
    |
    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_borrows_for_generic_args

warning: redundant guard
   --> src/flamegraph/mod.rs:620:32
    |
620 |                 Some(delta) if delta == 0 => write!(
    |                                ^^^^^^^^^^
    |
    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#redundant_guards
    = note: `#[warn(clippy::redundant_guards)]` on by default
help: try
    |
620 -                 Some(delta) if delta == 0 => write!(
620 +                 Some(0) => write!(
    |

warning: the borrowed expression implements the required traits
   --> src/flamegraph/svg.rs:144:50
    |
144 |       svg.write_event(Event::CData(BytesCData::new(&format!(
    |  __________________________________________________^
145 | |         "
146 | |         var nametype = {};
147 | |         var fontsize = {};
...   |
161 | |         opt.text_truncate_direction == TextTruncateDirection::Right
162 | |     ))))?;
    | |_____^
    |
    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_borrows_for_generic_args
help: change this to
    |
144 ~     svg.write_event(Event::CData(BytesCData::new(format!(
145 +         "
146 +         var nametype = {};
147 +         var fontsize = {};
148 +         var fontwidth = {};
149 +         var xpad = {};
150 +         var inverted = {};
151 +         var searchcolor = '{}';
152 +         var fluiddrawing = {};
153 +         var truncate_text_right = {};\n    ",
154 +         enquote('\'', &opt.name_type),
155 +         opt.font_size,
156 +         opt.font_width,
157 +         super::XPAD,
158 +         opt.direction == Direction::Inverted,
159 +         opt.search_color,
160 +         opt.image_width.is_none(),
161 +         opt.text_truncate_direction == TextTruncateDirection::Right
162 ~     ))))?;
    |

warning: the borrowed expression implements the required traits
   --> src/flamegraph/svg.rs:131:61
    |
131 |           svg.write_event(Event::Text(BytesText::from_escaped(&format!(
    |  _____________________________________________________________^
132 | |             "#frames > g > rect {{ stroke:{}; stroke-width:1; }}\n",
133 | |             strokecolor
134 | |         ))))?;
    | |_________^
    |
    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_borrows_for_generic_args
help: change this to
    |
131 ~         svg.write_event(Event::Text(BytesText::from_escaped(format!(
132 +             "#frames > g > rect {{ stroke:{}; stroke-width:1; }}\n",
133 +             strokecolor
134 ~         ))))?;
    |

warning: the borrowed expression implements the required traits
   --> src/flamegraph/svg.rs:123:57
    |
123 |       svg.write_event(Event::Text(BytesText::from_escaped(&format!(
    |  _________________________________________________________^
124 | |         "
125 | | text {{ font-family:{}; font-size:{}px }}
126 | | #title {{ text-anchor:middle; font-size:{}px; }}
127 | | ",
128 | |         font_type, &opt.font_size, titlesize,
129 | |     ))))?;
    | |_____^
    |
    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_borrows_for_generic_args
    = note: `#[warn(clippy::needless_borrows_for_generic_args)]` on by default
help: change this to
    |
123 ~     svg.write_event(Event::Text(BytesText::from_escaped(format!(
124 +         "
125 + text {{ font-family:{}; font-size:{}px }}
126 + #title {{ text-anchor:middle; font-size:{}px; }}
127 + ",
128 +         font_type, &opt.font_size, titlesize,
129 ~     ))))?;
    |

warning: usage of a legacy numeric constant
   --> src/flamegraph/color/mod.rs:395:36
    |
395 |         let hash3 = (hash as f64 / std::u64::MAX as f64) as f32;
    |                                    ^^^^^^^^^^^^^
    |
    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#legacy_numeric_constants
help: use the associated constant instead
    |
395 |         let hash3 = (hash as f64 / u64::MAX as f64) as f32;
    |                                    ~~~~~~~~

warning: usage of a legacy numeric constant
   --> src/flamegraph/color/mod.rs:392:36
    |
392 |         let hash2 = (hash as f64 / std::u64::MAX as f64) as f32;
    |                                    ^^^^^^^^^^^^^
    |
    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#legacy_numeric_constants
help: use the associated constant instead
    |
392 |         let hash2 = (hash as f64 / u64::MAX as f64) as f32;
    |                                    ~~~~~~~~

warning: usage of a legacy numeric constant
   --> src/flamegraph/color/mod.rs:387:36
    |
387 |         let hash1 = (hash as f64 / std::u64::MAX as f64) as f32;
    |                                    ^^^^^^^^^^^^^
    |
    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#legacy_numeric_constants
    = note: `#[warn(clippy::legacy_numeric_constants)]` on by default
help: use the associated constant instead
    |
387 |         let hash1 = (hash as f64 / u64::MAX as f64) as f32;
    |                                    ~~~~~~~~

warning: this manual char comparison can be written more succinctly
  --> src/flamegraph/color/palettes.rs:66:20
   |
66 |         path.split(|c| c == '/' || c == '\\')
   |                    ^^^^^^^^^^^^^^^^^^^^^^^^^ help: consider using an array of `char`: `['/', '\\']`
   |
   = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#manual_pattern_char_comparison

warning: file opened with `create`, but `truncate` behavior not defined
   --> src/flamegraph/color/palette_map.rs:104:55
    |
104 |         let mut file = OpenOptions::new().write(true).create(true).open(path)?;
    |                                                       ^^^^^^^^^^^^- help: add: `.truncate(true)`
    |
    = help: if you intend to overwrite an existing file entirely, call `.truncate(true)`
    = help: if you instead know that you may want to keep some parts of the old file, call `.truncate(false)`
    = help: alternatively, use `.append(true)` to append to the file instead of overwriting it
    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#suspicious_open_options
    = note: `#[warn(clippy::suspicious_open_options)]` on by default

warning: this manual char comparison can be written more succinctly
   --> src/collapse/perf.rs:417:27
    |
417 |                     .find(|c| c == ':' || c == ' ')
    |                           ^^^^^^^^^^^^^^^^^^^^^^^^ help: consider using an array of `char`: `[':', ' ']`
    |
    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#manual_pattern_char_comparison

warning: this manual char comparison can be written more succinctly
   --> src/collapse/dtrace.rs:264:58
    |
264 |             if let Some(open) = probe[scope + 2..].rfind(|c| c == '(' || c == '<') {
    |                                                          ^^^^^^^^^^^^^^^^^^^^^^^^ help: consider using an array of `char`: `['(', '<']`
    |
    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#manual_pattern_char_comparison
    = note: `#[warn(clippy::manual_pattern_char_comparison)]` on by default

warning: this `if` statement can be collapsed
   --> src/collapse/perf.rs:549:24
    |
549 |                   } else if self.opt.annotate_jit
    |  ________________________^
550 | |                     && ((module.starts_with("/tmp/perf-") && module.ends_with(".map"))
551 | |                         || (module.contains("/jitted-") && module.ends_with(".so")))
552 | |                 {
...   |
555 | |                     }
556 | |                 }
    | |_________________^
    |
    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#collapsible_if
    = note: `#[warn(clippy::collapsible_if)]` on by default
help: collapse nested if block
    |
549 ~                 } else if self.opt.annotate_jit && ((module.starts_with("/tmp/perf-") && module.ends_with(".map"))
550 +                         || (module.contains("/jitted-") && module.ends_with(".so"))) && !func.contains("_[j]") {
551 +                     func.push_str("_[j]"); // jitted
552 +                 }
    |