mirror of
https://github.com/rust-lang/rust-clippy
synced 2024-11-15 01:17:16 +00:00
531 lines
21 KiB
Text
531 lines
21 KiB
Text
error: unnecessary structure name repetition
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--> $DIR/methods.rs:21:29
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21 | pub fn add(self, other: T) -> T { self }
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| ^ help: use the applicable keyword: `Self`
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= note: `-D use-self` implied by `-D warnings`
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error: unnecessary structure name repetition
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--> $DIR/methods.rs:21:35
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21 | pub fn add(self, other: T) -> T { self }
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| ^ help: use the applicable keyword: `Self`
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error: unnecessary structure name repetition
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--> $DIR/methods.rs:25:25
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25 | fn eq(&self, other: T) -> bool { true } // no error, private function
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| ^ help: use the applicable keyword: `Self`
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error: unnecessary structure name repetition
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--> $DIR/methods.rs:27:26
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27 | fn sub(&self, other: T) -> &T { self } // no error, self is a ref
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| ^ help: use the applicable keyword: `Self`
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error: unnecessary structure name repetition
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--> $DIR/methods.rs:27:33
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27 | fn sub(&self, other: T) -> &T { self } // no error, self is a ref
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| ^ help: use the applicable keyword: `Self`
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error: unnecessary structure name repetition
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--> $DIR/methods.rs:28:21
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28 | fn div(self) -> T { self } // no error, different #arguments
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| ^ help: use the applicable keyword: `Self`
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error: unnecessary structure name repetition
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--> $DIR/methods.rs:29:25
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29 | fn rem(self, other: T) { } // no error, wrong return type
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| ^ help: use the applicable keyword: `Self`
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error: defining a method called `add` on this type; consider implementing the `std::ops::Add` trait or choosing a less ambiguous name
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--> $DIR/methods.rs:21:5
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21 | pub fn add(self, other: T) -> T { self }
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| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
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= note: `-D should-implement-trait` implied by `-D warnings`
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error: methods called `into_*` usually take self by value; consider choosing a less ambiguous name
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--> $DIR/methods.rs:32:17
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32 | fn into_u16(&self) -> u16 { 0 }
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| ^^^^^
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= note: `-D wrong-self-convention` implied by `-D warnings`
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error: methods called `to_*` usually take self by reference; consider choosing a less ambiguous name
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--> $DIR/methods.rs:34:21
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34 | fn to_something(self) -> u32 { 0 }
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| ^^^^
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error: methods called `new` usually take no self; consider choosing a less ambiguous name
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--> $DIR/methods.rs:36:12
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36 | fn new(self) {}
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| ^^^^
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error: methods called `new` usually return `Self`
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--> $DIR/methods.rs:36:5
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36 | fn new(self) {}
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| ^^^^^^^^^^^^^^^
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= note: `-D new-ret-no-self` implied by `-D warnings`
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error: unnecessary structure name repetition
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--> $DIR/methods.rs:80:24
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80 | fn new() -> Option<V<T>> { None }
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| ^^^^ help: use the applicable keyword: `Self`
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error: unnecessary structure name repetition
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--> $DIR/methods.rs:84:19
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84 | type Output = T;
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| ^ help: use the applicable keyword: `Self`
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error: unnecessary structure name repetition
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--> $DIR/methods.rs:85:25
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85 | fn mul(self, other: T) -> T { self } // no error, obviously
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| ^ help: use the applicable keyword: `Self`
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error: unnecessary structure name repetition
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--> $DIR/methods.rs:85:31
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85 | fn mul(self, other: T) -> T { self } // no error, obviously
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| ^ help: use the applicable keyword: `Self`
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error: called `map(f).unwrap_or(a)` on an Option value. This can be done more directly by calling `map_or(a, f)` instead
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--> $DIR/methods.rs:104:13
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104 | let _ = opt.map(|x| x + 1)
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| _____________^
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105 | |
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106 | | .unwrap_or(0); // should lint even though this call is on a separate line
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| |____________________________^
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= note: `-D option-map-unwrap-or` implied by `-D warnings`
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= note: replace `map(|x| x + 1).unwrap_or(0)` with `map_or(0, |x| x + 1)`
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error: called `map(f).unwrap_or(a)` on an Option value. This can be done more directly by calling `map_or(a, f)` instead
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--> $DIR/methods.rs:108:13
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108 | let _ = opt.map(|x| {
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| _____________^
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109 | | x + 1
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110 | | }
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111 | | ).unwrap_or(0);
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| |____________________________^
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error: called `map(f).unwrap_or(a)` on an Option value. This can be done more directly by calling `map_or(a, f)` instead
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--> $DIR/methods.rs:112:13
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112 | let _ = opt.map(|x| x + 1)
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| _____________^
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113 | | .unwrap_or({
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114 | | 0
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115 | | });
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| |__________________^
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error: called `map(f).unwrap_or(None)` on an Option value. This can be done more directly by calling `and_then(f)` instead
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--> $DIR/methods.rs:117:13
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117 | let _ = opt.map(|x| Some(x + 1)).unwrap_or(None);
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| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
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= note: replace `map(|x| Some(x + 1)).unwrap_or(None)` with `and_then(|x| Some(x + 1))`
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error: called `map(f).unwrap_or(None)` on an Option value. This can be done more directly by calling `and_then(f)` instead
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--> $DIR/methods.rs:119:13
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119 | let _ = opt.map(|x| {
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| _____________^
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120 | | Some(x + 1)
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121 | | }
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122 | | ).unwrap_or(None);
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| |_____________________^
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error: called `map(f).unwrap_or(None)` on an Option value. This can be done more directly by calling `and_then(f)` instead
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--> $DIR/methods.rs:123:13
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123 | let _ = opt
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| _____________^
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124 | | .map(|x| Some(x + 1))
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125 | | .unwrap_or(None);
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| |________________________^
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= note: replace `map(|x| Some(x + 1)).unwrap_or(None)` with `and_then(|x| Some(x + 1))`
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error: called `map(f).unwrap_or_else(g)` on an Option value. This can be done more directly by calling `map_or_else(g, f)` instead
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--> $DIR/methods.rs:131:13
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131 | let _ = opt.map(|x| x + 1)
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| _____________^
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132 | |
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133 | | .unwrap_or_else(|| 0); // should lint even though this call is on a separate line
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| |____________________________________^
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= note: `-D option-map-unwrap-or-else` implied by `-D warnings`
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= note: replace `map(|x| x + 1).unwrap_or_else(|| 0)` with `map_or_else(|| 0, |x| x + 1)`
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error: called `map(f).unwrap_or_else(g)` on an Option value. This can be done more directly by calling `map_or_else(g, f)` instead
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--> $DIR/methods.rs:135:13
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135 | let _ = opt.map(|x| {
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136 | | x + 1
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137 | | }
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138 | | ).unwrap_or_else(|| 0);
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| |____________________________________^
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error: called `map(f).unwrap_or_else(g)` on an Option value. This can be done more directly by calling `map_or_else(g, f)` instead
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--> $DIR/methods.rs:139:13
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139 | let _ = opt.map(|x| x + 1)
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140 | | .unwrap_or_else(||
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141 | | 0
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142 | | );
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| |_________________^
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error: called `map_or(None, f)` on an Option value. This can be done more directly by calling `and_then(f)` instead
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--> $DIR/methods.rs:148:13
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148 | let _ = opt.map_or(None, |x| Some(x + 1));
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| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try using and_then instead: `opt.and_then(|x| Some(x + 1))`
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= note: `-D option-map-or-none` implied by `-D warnings`
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error: called `map_or(None, f)` on an Option value. This can be done more directly by calling `and_then(f)` instead
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--> $DIR/methods.rs:150:13
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150 | let _ = opt.map_or(None, |x| {
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| _____________^
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151 | | Some(x + 1)
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152 | | }
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153 | | );
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| |_________________^
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help: try using and_then instead
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150 | let _ = opt.and_then(|x| {
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151 | Some(x + 1)
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152 | });
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error: called `map(f).unwrap_or_else(g)` on a Result value. This can be done more directly by calling `ok().map_or_else(g, f)` instead
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--> $DIR/methods.rs:163:13
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163 | let _ = res.map(|x| x + 1)
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| _____________^
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164 | |
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165 | | .unwrap_or_else(|e| 0); // should lint even though this call is on a separate line
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| |_____________________________________^
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= note: `-D result-map-unwrap-or-else` implied by `-D warnings`
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= note: replace `map(|x| x + 1).unwrap_or_else(|e| 0)` with `ok().map_or_else(|e| 0, |x| x + 1)`
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error: called `map(f).unwrap_or_else(g)` on a Result value. This can be done more directly by calling `ok().map_or_else(g, f)` instead
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--> $DIR/methods.rs:167:13
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167 | let _ = res.map(|x| {
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168 | | x + 1
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169 | | }
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170 | | ).unwrap_or_else(|e| 0);
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| |_____________________________________^
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error: called `map(f).unwrap_or_else(g)` on a Result value. This can be done more directly by calling `ok().map_or_else(g, f)` instead
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--> $DIR/methods.rs:171:13
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171 | let _ = res.map(|x| x + 1)
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| _____________^
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172 | | .unwrap_or_else(|e|
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173 | | 0
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174 | | );
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| |_________________^
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error: unnecessary structure name repetition
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--> $DIR/methods.rs:200:24
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200 | fn filter(self) -> IteratorFalsePositives {
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| ^^^^^^^^^^^^^^^^^^^^^^ help: use the applicable keyword: `Self`
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error: unnecessary structure name repetition
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--> $DIR/methods.rs:204:22
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204 | fn next(self) -> IteratorFalsePositives {
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| ^^^^^^^^^^^^^^^^^^^^^^ help: use the applicable keyword: `Self`
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error: unnecessary structure name repetition
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--> $DIR/methods.rs:224:32
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224 | fn skip(self, _: usize) -> IteratorFalsePositives {
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| ^^^^^^^^^^^^^^^^^^^^^^ help: use the applicable keyword: `Self`
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error: called `filter(p).next()` on an `Iterator`. This is more succinctly expressed by calling `.find(p)` instead.
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--> $DIR/methods.rs:234:13
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234 | let _ = v.iter().filter(|&x| *x < 0).next();
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| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
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= note: `-D filter-next` implied by `-D warnings`
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= note: replace `filter(|&x| *x < 0).next()` with `find(|&x| *x < 0)`
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error: called `filter(p).next()` on an `Iterator`. This is more succinctly expressed by calling `.find(p)` instead.
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--> $DIR/methods.rs:237:13
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237 | let _ = v.iter().filter(|&x| {
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| _____________^
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238 | | *x < 0
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239 | | }
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240 | | ).next();
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| |___________________________^
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error: called `is_some()` after searching an `Iterator` with find. This is more succinctly expressed by calling `any()`.
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--> $DIR/methods.rs:252:13
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252 | let _ = v.iter().find(|&x| *x < 0).is_some();
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| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
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= note: `-D search-is-some` implied by `-D warnings`
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= note: replace `find(|&x| *x < 0).is_some()` with `any(|&x| *x < 0)`
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error: called `is_some()` after searching an `Iterator` with find. This is more succinctly expressed by calling `any()`.
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--> $DIR/methods.rs:255:13
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255 | let _ = v.iter().find(|&x| {
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| _____________^
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256 | | *x < 0
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257 | | }
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258 | | ).is_some();
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| |______________________________^
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error: called `is_some()` after searching an `Iterator` with position. This is more succinctly expressed by calling `any()`.
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--> $DIR/methods.rs:261:13
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261 | let _ = v.iter().position(|&x| x < 0).is_some();
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| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
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= note: replace `position(|&x| x < 0).is_some()` with `any(|&x| x < 0)`
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error: called `is_some()` after searching an `Iterator` with position. This is more succinctly expressed by calling `any()`.
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--> $DIR/methods.rs:264:13
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264 | let _ = v.iter().position(|&x| {
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| _____________^
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265 | | x < 0
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266 | | }
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267 | | ).is_some();
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| |______________________________^
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error: called `is_some()` after searching an `Iterator` with rposition. This is more succinctly expressed by calling `any()`.
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--> $DIR/methods.rs:270:13
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270 | let _ = v.iter().rposition(|&x| x < 0).is_some();
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| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
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= note: replace `rposition(|&x| x < 0).is_some()` with `any(|&x| x < 0)`
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error: called `is_some()` after searching an `Iterator` with rposition. This is more succinctly expressed by calling `any()`.
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--> $DIR/methods.rs:273:13
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273 | let _ = v.iter().rposition(|&x| {
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| _____________^
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274 | | x < 0
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275 | | }
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276 | | ).is_some();
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| |______________________________^
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error: unnecessary structure name repetition
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--> $DIR/methods.rs:290:21
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290 | fn new() -> Foo { Foo }
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| ^^^ help: use the applicable keyword: `Self`
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error: use of `unwrap_or` followed by a function call
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--> $DIR/methods.rs:308:22
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308 | with_constructor.unwrap_or(make());
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| ^^^^^^^^^^^^^^^^^ help: try this: `unwrap_or_else(make)`
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= note: `-D or-fun-call` implied by `-D warnings`
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error: use of `unwrap_or` followed by a call to `new`
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--> $DIR/methods.rs:311:5
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311 | with_new.unwrap_or(Vec::new());
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| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try this: `with_new.unwrap_or_default()`
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error: use of `unwrap_or` followed by a function call
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--> $DIR/methods.rs:314:21
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314 | with_const_args.unwrap_or(Vec::with_capacity(12));
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| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try this: `unwrap_or_else(|| Vec::with_capacity(12))`
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error: use of `unwrap_or` followed by a function call
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--> $DIR/methods.rs:317:14
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317 | with_err.unwrap_or(make());
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| ^^^^^^^^^^^^^^^^^ help: try this: `unwrap_or_else(|_| make())`
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error: use of `unwrap_or` followed by a function call
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--> $DIR/methods.rs:320:19
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320 | with_err_args.unwrap_or(Vec::with_capacity(12));
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| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try this: `unwrap_or_else(|_| Vec::with_capacity(12))`
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error: use of `unwrap_or` followed by a call to `default`
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--> $DIR/methods.rs:323:5
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323 | with_default_trait.unwrap_or(Default::default());
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| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try this: `with_default_trait.unwrap_or_default()`
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error: use of `unwrap_or` followed by a call to `default`
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--> $DIR/methods.rs:326:5
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326 | with_default_type.unwrap_or(u64::default());
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| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try this: `with_default_type.unwrap_or_default()`
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error: use of `unwrap_or` followed by a function call
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--> $DIR/methods.rs:329:14
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329 | with_vec.unwrap_or(vec![]);
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| ^^^^^^^^^^^^^^^^^ help: try this: `unwrap_or_else(|| < [ _ ] > :: into_vec ( box [ $ ( $ x ) , * ] ))`
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error: use of `unwrap_or` followed by a function call
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--> $DIR/methods.rs:334:21
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334 | without_default.unwrap_or(Foo::new());
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| ^^^^^^^^^^^^^^^^^^^^^ help: try this: `unwrap_or_else(Foo::new)`
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error: use of `or_insert` followed by a function call
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--> $DIR/methods.rs:337:19
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337 | map.entry(42).or_insert(String::new());
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| ^^^^^^^^^^^^^^^^^^^^^^^^ help: try this: `or_insert_with(String::new)`
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error: use of `or_insert` followed by a function call
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--> $DIR/methods.rs:340:21
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340 | btree.entry(42).or_insert(String::new());
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| ^^^^^^^^^^^^^^^^^^^^^^^^ help: try this: `or_insert_with(String::new)`
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error: use of `unwrap_or` followed by a function call
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--> $DIR/methods.rs:343:21
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343 | let _ = stringy.unwrap_or("".to_owned());
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| ^^^^^^^^^^^^^^^^^^^^^^^^ help: try this: `unwrap_or_else(|| "".to_owned())`
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error: use of `expect` followed by a function call
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--> $DIR/methods.rs:366:26
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366 | with_none_and_format.expect(&format!("Error {}: fake error", error_code));
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| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try this: `unwrap_or_else(|| panic!("Error {}: fake error", error_code))`
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= note: `-D expect-fun-call` implied by `-D warnings`
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error: use of `expect` followed by a function call
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--> $DIR/methods.rs:369:26
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369 | with_none_and_as_str.expect(format!("Error {}: fake error", error_code).as_str());
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| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try this: `unwrap_or_else(|| panic!(format!("Error {}: fake error", error_code).as_str()))`
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|
error: use of `expect` followed by a function call
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--> $DIR/methods.rs:379:25
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379 | with_err_and_format.expect(&format!("Error {}: fake error", error_code));
|
|
| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try this: `unwrap_or_else(|_| panic!("Error {}: fake error", error_code))`
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|
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error: use of `expect` followed by a function call
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--> $DIR/methods.rs:382:25
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382 | with_err_and_as_str.expect(format!("Error {}: fake error", error_code).as_str());
|
|
| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try this: `unwrap_or_else(|_| panic!(format!("Error {}: fake error", error_code).as_str()))`
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|
|
error: called `.iter().nth()` on a Vec. Calling `.get()` is both faster and more readable
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--> $DIR/methods.rs:402:23
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|
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|
402 | let bad_vec = some_vec.iter().nth(3);
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|
| ^^^^^^^^^^^^^^^^^^^^^^
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|
|
|
|
= note: `-D iter-nth` implied by `-D warnings`
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|
error: called `.iter().nth()` on a slice. Calling `.get()` is both faster and more readable
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--> $DIR/methods.rs:403:26
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|
403 | let bad_slice = &some_vec[..].iter().nth(3);
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|
| ^^^^^^^^^^^^^^^^^^^^^^^^^^
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|
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|
error: called `.iter().nth()` on a slice. Calling `.get()` is both faster and more readable
|
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--> $DIR/methods.rs:404:31
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|
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|
404 | let bad_boxed_slice = boxed_slice.iter().nth(3);
|
|
| ^^^^^^^^^^^^^^^^^^^^^^^^^
|
|
|
|
error: called `.iter().nth()` on a VecDeque. Calling `.get()` is both faster and more readable
|
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--> $DIR/methods.rs:405:29
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|
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|
405 | let bad_vec_deque = some_vec_deque.iter().nth(3);
|
|
| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
|
|
|
|
error: called `.iter_mut().nth()` on a Vec. Calling `.get_mut()` is both faster and more readable
|
|
--> $DIR/methods.rs:410:23
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|
|
|
|
410 | let bad_vec = some_vec.iter_mut().nth(3);
|
|
| ^^^^^^^^^^^^^^^^^^^^^^^^^^
|
|
|
|
error: called `.iter_mut().nth()` on a slice. Calling `.get_mut()` is both faster and more readable
|
|
--> $DIR/methods.rs:413:26
|
|
|
|
|
413 | let bad_slice = &some_vec[..].iter_mut().nth(3);
|
|
| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
|
|
|
|
error: called `.iter_mut().nth()` on a VecDeque. Calling `.get_mut()` is both faster and more readable
|
|
--> $DIR/methods.rs:416:29
|
|
|
|
|
416 | let bad_vec_deque = some_vec_deque.iter_mut().nth(3);
|
|
| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
|
|
|
|
error: called `skip(x).next()` on an iterator. This is more succinctly expressed by calling `nth(x)`
|
|
--> $DIR/methods.rs:428:13
|
|
|
|
|
428 | let _ = some_vec.iter().skip(42).next();
|
|
| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
|
|
|
|
|
= note: `-D iter-skip-next` implied by `-D warnings`
|
|
|
|
error: called `skip(x).next()` on an iterator. This is more succinctly expressed by calling `nth(x)`
|
|
--> $DIR/methods.rs:429:13
|
|
|
|
|
429 | let _ = some_vec.iter().cycle().skip(42).next();
|
|
| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
|
|
|
|
error: called `skip(x).next()` on an iterator. This is more succinctly expressed by calling `nth(x)`
|
|
--> $DIR/methods.rs:430:13
|
|
|
|
|
430 | let _ = (1..10).skip(10).next();
|
|
| ^^^^^^^^^^^^^^^^^^^^^^^
|
|
|
|
error: called `skip(x).next()` on an iterator. This is more succinctly expressed by calling `nth(x)`
|
|
--> $DIR/methods.rs:431:14
|
|
|
|
|
431 | let _ = &some_vec[..].iter().skip(3).next();
|
|
| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
|
|
|
|
error: used unwrap() on an Option value. If you don't want to handle the None case gracefully, consider using expect() to provide a better panic message
|
|
--> $DIR/methods.rs:440:13
|
|
|
|
|
440 | let _ = opt.unwrap();
|
|
| ^^^^^^^^^^^^
|
|
|
|
|
= note: `-D option-unwrap-used` implied by `-D warnings`
|
|
|
|
error: aborting due to 70 previous errors
|
|
|