mirror of
https://github.com/rust-lang/rust-clippy
synced 2024-09-21 07:01:54 +00:00
511 lines
20 KiB
Text
511 lines
20 KiB
Text
error: unnecessary structure name repetition
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--> $DIR/methods.rs:20:29
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20 | 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:20:35
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20 | 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:24:25
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24 | 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:26:26
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26 | 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:26:33
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26 | 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:27:21
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27 | 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:28:25
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28 | 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:20:5
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20 | 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:31:17
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31 | 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:33:21
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33 | 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:35:12
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35 | 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:35:5
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35 | 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:79:24
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79 | 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:83:19
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83 | 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:84:25
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84 | 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:84:31
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84 | 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:103:13
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103 | let _ = opt.map(|x| x + 1)
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| _____________^
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104 | |
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105 | | .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:107:13
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107 | let _ = opt.map(|x| {
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| _____________^
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108 | | x + 1
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109 | | }
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110 | | ).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:111:13
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111 | let _ = opt.map(|x| x + 1)
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| _____________^
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112 | | .unwrap_or({
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113 | | 0
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114 | | });
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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:116:13
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116 | 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:118:13
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118 | let _ = opt.map(|x| {
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| _____________^
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119 | | Some(x + 1)
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120 | | }
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121 | | ).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:122:13
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122 | let _ = opt
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| _____________^
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123 | | .map(|x| Some(x + 1))
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124 | | .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:130:13
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130 | let _ = opt.map(|x| x + 1)
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| _____________^
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131 | |
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132 | | .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:134:13
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134 | let _ = opt.map(|x| {
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135 | | x + 1
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136 | | }
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137 | | ).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:138:13
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138 | let _ = opt.map(|x| x + 1)
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139 | | .unwrap_or_else(||
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140 | | 0
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141 | | );
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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:147:13
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147 | 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:149:13
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149 | let _ = opt.map_or(None, |x| {
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| _____________^
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150 | | Some(x + 1)
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151 | | }
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152 | | );
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| |_________________^
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help: try using and_then instead
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149 | let _ = opt.and_then(|x| {
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150 | Some(x + 1)
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151 | });
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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:162:13
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162 | let _ = res.map(|x| x + 1)
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| _____________^
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163 | |
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164 | | .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:166:13
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166 | let _ = res.map(|x| {
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167 | | x + 1
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168 | | }
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169 | | ).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:170:13
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170 | let _ = res.map(|x| x + 1)
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| _____________^
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171 | | .unwrap_or_else(|e|
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172 | | 0
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173 | | );
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| |_________________^
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error: unnecessary structure name repetition
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--> $DIR/methods.rs:199:24
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199 | 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:203:22
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203 | 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:223:32
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223 | 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:233:13
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233 | 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:236:13
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236 | let _ = v.iter().filter(|&x| {
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237 | | *x < 0
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238 | | }
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239 | | ).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:251:13
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251 | 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:254:13
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254 | let _ = v.iter().find(|&x| {
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| _____________^
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255 | | *x < 0
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256 | | }
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257 | | ).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:260:13
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260 | 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:263:13
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263 | let _ = v.iter().position(|&x| {
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| _____________^
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264 | | x < 0
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265 | | }
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266 | | ).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:269:13
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269 | 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:272:13
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272 | let _ = v.iter().rposition(|&x| {
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| _____________^
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273 | | x < 0
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274 | | }
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275 | | ).is_some();
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| |______________________________^
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error: unnecessary structure name repetition
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--> $DIR/methods.rs:289:21
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289 | 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:307:5
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307 | with_constructor.unwrap_or(make());
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| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try this: `with_constructor.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:310:5
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310 | 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:313:5
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313 | with_const_args.unwrap_or(Vec::with_capacity(12));
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| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try this: `with_const_args.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:316:5
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316 | with_err.unwrap_or(make());
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| ^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try this: `with_err.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:319:5
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319 | with_err_args.unwrap_or(Vec::with_capacity(12));
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| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try this: `with_err_args.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:322:5
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322 | 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:325:5
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325 | 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:328:5
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328 | with_vec.unwrap_or(vec![]);
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| ^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try this: `with_vec.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:333:5
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333 | without_default.unwrap_or(Foo::new());
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| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try this: `without_default.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:336:5
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336 | map.entry(42).or_insert(String::new());
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| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try this: `map.entry(42).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:339:5
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339 | btree.entry(42).or_insert(String::new());
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| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try this: `btree.entry(42).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:342:13
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342 | let _ = stringy.unwrap_or("".to_owned());
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| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try this: `stringy.unwrap_or_else(|| "".to_owned())`
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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:353:23
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353 | 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:354:26
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354 | let bad_slice = &some_vec[..].iter().nth(3);
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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:355:31
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355 | let bad_boxed_slice = boxed_slice.iter().nth(3);
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| ^^^^^^^^^^^^^^^^^^^^^^^^^
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error: called `.iter().nth()` on a VecDeque. Calling `.get()` is both faster and more readable
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--> $DIR/methods.rs:356:29
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356 | let bad_vec_deque = some_vec_deque.iter().nth(3);
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| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
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error: called `.iter_mut().nth()` on a Vec. Calling `.get_mut()` is both faster and more readable
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--> $DIR/methods.rs:361:23
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361 | let bad_vec = some_vec.iter_mut().nth(3);
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| ^^^^^^^^^^^^^^^^^^^^^^^^^^
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error: called `.iter_mut().nth()` on a slice. Calling `.get_mut()` is both faster and more readable
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--> $DIR/methods.rs:364:26
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364 | let bad_slice = &some_vec[..].iter_mut().nth(3);
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| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
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error: called `.iter_mut().nth()` on a VecDeque. Calling `.get_mut()` is both faster and more readable
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--> $DIR/methods.rs:367:29
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367 | let bad_vec_deque = some_vec_deque.iter_mut().nth(3);
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| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
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error: called `skip(x).next()` on an iterator. This is more succinctly expressed by calling `nth(x)`
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--> $DIR/methods.rs:379:13
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379 | let _ = some_vec.iter().skip(42).next();
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| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
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= note: `-D iter-skip-next` implied by `-D warnings`
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error: called `skip(x).next()` on an iterator. This is more succinctly expressed by calling `nth(x)`
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--> $DIR/methods.rs:380:13
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|
380 | let _ = some_vec.iter().cycle().skip(42).next();
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| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
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|
error: called `skip(x).next()` on an iterator. This is more succinctly expressed by calling `nth(x)`
|
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--> $DIR/methods.rs:381:13
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|
381 | let _ = (1..10).skip(10).next();
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| ^^^^^^^^^^^^^^^^^^^^^^^
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|
error: called `skip(x).next()` on an iterator. This is more succinctly expressed by calling `nth(x)`
|
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--> $DIR/methods.rs:382:14
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|
382 | let _ = &some_vec[..].iter().skip(3).next();
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| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
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error: this `.fold` can more succintly be expressed as `.any`
|
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--> $DIR/methods.rs:390:13
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390 | let _ = (0..3).fold(false, |acc, x| acc || x > 2);
|
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| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try: `.any(|x| x > 2)`
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|
|
|
= note: `-D fold-any` implied by `-D warnings`
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|
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
|
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--> $DIR/methods.rs:406:13
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|
|
406 | let _ = opt.unwrap();
|
|
| ^^^^^^^^^^^^
|
|
|
|
|
= note: `-D option-unwrap-used` implied by `-D warnings`
|
|
|