[INFO] crate linked-list 0.0.3 is already in cache
[INFO] extracting crate linked-list 0.0.3 into work/ex/clippy-test-run/sources/stable/reg/linked-list/0.0.3
[INFO] extracting crate linked-list 0.0.3 into work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/reg/linked-list/0.0.3
[INFO] validating manifest of linked-list-0.0.3 on toolchain stable
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+stable" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of linked-list-0.0.3 on toolchain stable+rustflags=-Dclippy::into_iter_on_array
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+stable" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing linked-list-0.0.3
[INFO] finished frobbing linked-list-0.0.3
[INFO] frobbed toml for linked-list-0.0.3 written to work/ex/clippy-test-run/sources/stable/reg/linked-list/0.0.3/Cargo.toml
[INFO] started frobbing linked-list-0.0.3
[INFO] finished frobbing linked-list-0.0.3
[INFO] frobbed toml for linked-list-0.0.3 written to work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/reg/linked-list/0.0.3/Cargo.toml
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+stable" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+stable" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+stable" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+stable" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] linting linked-list-0.0.3 against stable for clippy-test-run
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/clippy-test-run/worker-2/stable:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/clippy-test-run/sources/stable/reg/linked-list/0.0.3:/opt/crater/workdir:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/opt/crater/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/opt/crater/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/crater/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/crater/cargo-home" "-e" "RUSTUP_HOME=/opt/crater/rustup-home" "-w" "/opt/crater/workdir" "-m" "1536M" "--network" "none" "rustops/crates-build-env" "/opt/crater/cargo-home/bin/cargo" "+stable" "clippy" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] 28fbcfad7f7b3ab57384d06d36d22cab87a9625b2caed02622257a0dde1ecbfe
[INFO] running `"docker" "start" "-a" "28fbcfad7f7b3ab57384d06d36d22cab87a9625b2caed02622257a0dde1ecbfe"`
[INFO] [stderr]     Checking linked-list v0.0.3 (/opt/crater/workdir)
[INFO] [stderr] warning: redundant field names in struct initialization
[INFO] [stderr]   --> src/lib.rs:43:13
[INFO] [stderr]    |
[INFO] [stderr] 43 |             elem: elem,
[INFO] [stderr]    |             ^^^^^^^^^^ help: replace it with: `elem`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::redundant_field_names)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#redundant_field_names
[INFO] [stderr] 
[INFO] [stderr] warning: redundant field names in struct initialization
[INFO] [stderr]   --> src/lib.rs:94:15
[INFO] [stderr]    |
[INFO] [stderr] 94 |         Raw { ptr: ptr }
[INFO] [stderr]    |               ^^^^^^^^ help: replace it with: `ptr`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#redundant_field_names
[INFO] [stderr] 
[INFO] [stderr] warning: redundant field names in struct initialization
[INFO] [stderr]   --> src/lib.rs:43:13
[INFO] [stderr]    |
[INFO] [stderr] 43 |             elem: elem,
[INFO] [stderr]    |             ^^^^^^^^^^ help: replace it with: `elem`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::redundant_field_names)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#redundant_field_names
[INFO] [stderr] 
[INFO] [stderr] warning: redundant field names in struct initialization
[INFO] [stderr]   --> src/lib.rs:94:15
[INFO] [stderr]    |
[INFO] [stderr] 94 |         Raw { ptr: ptr }
[INFO] [stderr]    |               ^^^^^^^^ help: replace it with: `ptr`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#redundant_field_names
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `Debug`
[INFO] [stderr]   --> src/lib.rs:19:22
[INFO] [stderr]    |
[INFO] [stderr] 19 | use std::fmt::{self, Debug};
[INFO] [stderr]    |                      ^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_imports)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: called `map(f)` on an Option value where `f` is a unit closure
[INFO] [stderr]   --> src/lib.rs:59:9
[INFO] [stderr]    |
[INFO] [stderr] 59 |         old_next.as_mut().map(|node| node.prev = Raw::some(&mut *next));
[INFO] [stderr]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^-
[INFO] [stderr]    |         |
[INFO] [stderr]    |         help: try this: `if let Some(node) = old_next.as_mut() { ... }`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::option_map_unit_fn)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#option_map_unit_fn
[INFO] [stderr] 
[INFO] [stderr] warning: called `map(f)` on an Option value where `f` is a unit closure
[INFO] [stderr]   --> src/lib.rs:69:9
[INFO] [stderr]    |
[INFO] [stderr] 69 |            next.as_mut().map(|node| {
[INFO] [stderr]    |   _________^
[INFO] [stderr]    |  |_________|
[INFO] [stderr]    | ||
[INFO] [stderr] 70 | ||             node.prev = Raw::none();
[INFO] [stderr] 71 | ||         });
[INFO] [stderr]    | ||__________^- help: try this: `if let Some(node) = next.as_mut() { node.prev = Raw::none(); }`
[INFO] [stderr]    | |___________|
[INFO] [stderr]    | 
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#option_map_unit_fn
[INFO] [stderr] 
[INFO] [stderr] warning: you should consider adding a `Default` implementation for `LinkedList<T>`
[INFO] [stderr]    --> src/lib.rs:147:5
[INFO] [stderr]     |
[INFO] [stderr] 147 | /     pub fn new() -> LinkedList<T> {
[INFO] [stderr] 148 | |         LinkedList { head: None, tail: Raw::none(), len: 0 }
[INFO] [stderr] 149 | |     }
[INFO] [stderr]     | |_____^
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(clippy::new_without_default)] on by default
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#new_without_default
[INFO] [stderr] help: try this
[INFO] [stderr]     |
[INFO] [stderr] 144 | impl Default for LinkedList<T> {
[INFO] [stderr] 145 |     fn default() -> Self {
[INFO] [stderr] 146 |         Self::new()
[INFO] [stderr] 147 |     }
[INFO] [stderr] 148 | }
[INFO] [stderr]     |
[INFO] [stderr] 
[INFO] [stderr] warning: explicit lifetimes given in parameter types where they could be elided (or replaced with `'_` if needed by type declaration)
[INFO] [stderr]    --> src/lib.rs:323:5
[INFO] [stderr]     |
[INFO] [stderr] 323 | /     pub fn iter<'a>(&'a self) -> Iter<'a, T> {
[INFO] [stderr] 324 | |         Iter{nelem: self.len(), head: &self.head, tail: &self.tail}
[INFO] [stderr] 325 | |     }
[INFO] [stderr]     | |_____^
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(clippy::needless_lifetimes)] on by default
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_lifetimes
[INFO] [stderr] 
[INFO] [stderr] warning: explicit lifetimes given in parameter types where they could be elided (or replaced with `'_` if needed by type declaration)
[INFO] [stderr]    --> src/lib.rs:329:5
[INFO] [stderr]     |
[INFO] [stderr] 329 | /     pub fn iter_mut<'a>(&'a mut self) -> IterMut<'a, T> {
[INFO] [stderr] 330 | |         let head_raw = match self.head.as_mut() {
[INFO] [stderr] 331 | |             Some(head) => Raw::some(&mut **head),
[INFO] [stderr] 332 | |             None => Raw::none(),
[INFO] [stderr] ...   |
[INFO] [stderr] 339 | |         }
[INFO] [stderr] 340 | |     }
[INFO] [stderr]     | |_____^
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_lifetimes
[INFO] [stderr] 
[INFO] [stderr] warning: defining a method called `into_iter` on this type; consider implementing the `std::iter::IntoIterator` trait or choosing a less ambiguous name
[INFO] [stderr]    --> src/lib.rs:344:5
[INFO] [stderr]     |
[INFO] [stderr] 344 | /     pub fn into_iter(self) -> IntoIter<T> {
[INFO] [stderr] 345 | |         IntoIter{list: self}
[INFO] [stderr] 346 | |     }
[INFO] [stderr]     | |_____^
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(clippy::should_implement_trait)] on by default
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#should_implement_trait
[INFO] [stderr] 
[INFO] [stderr] warning: defining a method called `next` on this type; consider implementing the `std::iter::Iterator` trait or choosing a less ambiguous name
[INFO] [stderr]    --> src/lib.rs:383:5
[INFO] [stderr]     |
[INFO] [stderr] 383 | /     pub fn next(&mut self) -> Option<&mut T> {
[INFO] [stderr] 384 | |         self.index += 1;
[INFO] [stderr] 385 | |         match self.prev.take().as_mut() {
[INFO] [stderr] 386 | |             // We had no previous element; the cursor was sitting at the start position
[INFO] [stderr] ...   |
[INFO] [stderr] 417 | |         }
[INFO] [stderr] 418 | |     }
[INFO] [stderr]     | |_____^
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#should_implement_trait
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `Debug`
[INFO] [stderr]   --> src/lib.rs:19:22
[INFO] [stderr]    |
[INFO] [stderr] 19 | use std::fmt::{self, Debug};
[INFO] [stderr]    |                      ^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_imports)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: called `map(f)` on an Option value where `f` is a unit closure
[INFO] [stderr]   --> src/lib.rs:59:9
[INFO] [stderr]    |
[INFO] [stderr] 59 |         old_next.as_mut().map(|node| node.prev = Raw::some(&mut *next));
[INFO] [stderr]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^-
[INFO] [stderr]    |         |
[INFO] [stderr]    |         help: try this: `if let Some(node) = old_next.as_mut() { ... }`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::option_map_unit_fn)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#option_map_unit_fn
[INFO] [stderr] 
[INFO] [stderr] warning: called `map(f)` on an Option value where `f` is a unit closure
[INFO] [stderr]   --> src/lib.rs:69:9
[INFO] [stderr]    |
[INFO] [stderr] 69 |            next.as_mut().map(|node| {
[INFO] [stderr]    |   _________^
[INFO] [stderr]    |  |_________|
[INFO] [stderr]    | ||
[INFO] [stderr] 70 | ||             node.prev = Raw::none();
[INFO] [stderr] 71 | ||         });
[INFO] [stderr]    | ||__________^- help: try this: `if let Some(node) = next.as_mut() { node.prev = Raw::none(); }`
[INFO] [stderr]    | |___________|
[INFO] [stderr]    | 
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#option_map_unit_fn
[INFO] [stderr] 
[INFO] [stderr] warning: you should consider adding a `Default` implementation for `LinkedList<T>`
[INFO] [stderr]    --> src/lib.rs:147:5
[INFO] [stderr]     |
[INFO] [stderr] 147 | /     pub fn new() -> LinkedList<T> {
[INFO] [stderr] 148 | |         LinkedList { head: None, tail: Raw::none(), len: 0 }
[INFO] [stderr] 149 | |     }
[INFO] [stderr]     | |_____^
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(clippy::new_without_default)] on by default
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#new_without_default
[INFO] [stderr] help: try this
[INFO] [stderr]     |
[INFO] [stderr] 144 | impl Default for LinkedList<T> {
[INFO] [stderr] 145 |     fn default() -> Self {
[INFO] [stderr] 146 |         Self::new()
[INFO] [stderr] 147 |     }
[INFO] [stderr] 148 | }
[INFO] [stderr]     |
[INFO] [stderr] 
[INFO] [stderr] warning: explicit lifetimes given in parameter types where they could be elided (or replaced with `'_` if needed by type declaration)
[INFO] [stderr]    --> src/lib.rs:323:5
[INFO] [stderr]     |
[INFO] [stderr] 323 | /     pub fn iter<'a>(&'a self) -> Iter<'a, T> {
[INFO] [stderr] 324 | |         Iter{nelem: self.len(), head: &self.head, tail: &self.tail}
[INFO] [stderr] 325 | |     }
[INFO] [stderr]     | |_____^
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(clippy::needless_lifetimes)] on by default
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_lifetimes
[INFO] [stderr] 
[INFO] [stderr] warning: explicit lifetimes given in parameter types where they could be elided (or replaced with `'_` if needed by type declaration)
[INFO] [stderr]    --> src/lib.rs:329:5
[INFO] [stderr]     |
[INFO] [stderr] 329 | /     pub fn iter_mut<'a>(&'a mut self) -> IterMut<'a, T> {
[INFO] [stderr] 330 | |         let head_raw = match self.head.as_mut() {
[INFO] [stderr] 331 | |             Some(head) => Raw::some(&mut **head),
[INFO] [stderr] 332 | |             None => Raw::none(),
[INFO] [stderr] ...   |
[INFO] [stderr] 339 | |         }
[INFO] [stderr] 340 | |     }
[INFO] [stderr]     | |_____^
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_lifetimes
[INFO] [stderr] 
[INFO] [stderr] warning: defining a method called `into_iter` on this type; consider implementing the `std::iter::IntoIterator` trait or choosing a less ambiguous name
[INFO] [stderr]    --> src/lib.rs:344:5
[INFO] [stderr]     |
[INFO] [stderr] 344 | /     pub fn into_iter(self) -> IntoIter<T> {
[INFO] [stderr] 345 | |         IntoIter{list: self}
[INFO] [stderr] 346 | |     }
[INFO] [stderr]     | |_____^
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(clippy::should_implement_trait)] on by default
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#should_implement_trait
[INFO] [stderr] 
[INFO] [stderr] warning: defining a method called `next` on this type; consider implementing the `std::iter::Iterator` trait or choosing a less ambiguous name
[INFO] [stderr]    --> src/lib.rs:383:5
[INFO] [stderr]     |
[INFO] [stderr] 383 | /     pub fn next(&mut self) -> Option<&mut T> {
[INFO] [stderr] 384 | |         self.index += 1;
[INFO] [stderr] 385 | |         match self.prev.take().as_mut() {
[INFO] [stderr] 386 | |             // We had no previous element; the cursor was sitting at the start position
[INFO] [stderr] ...   |
[INFO] [stderr] 417 | |         }
[INFO] [stderr] 418 | |     }
[INFO] [stderr]     | |_____^
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#should_implement_trait
[INFO] [stderr] 
[INFO] [stderr] error: equal expressions as operands to `<=`
[INFO] [stderr]    --> src/lib.rs:988:17
[INFO] [stderr]     |
[INFO] [stderr] 988 |         assert!(n <= n);
[INFO] [stderr]     |                 ^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[deny(clippy::eq_op)] on by default
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#eq_op
[INFO] [stderr] 
[INFO] [stderr] error: equal expressions as operands to `>=`
[INFO] [stderr]    --> src/lib.rs:989:17
[INFO] [stderr]     |
[INFO] [stderr] 989 |         assert!(n >= n);
[INFO] [stderr]     |                 ^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#eq_op
[INFO] [stderr] 
[INFO] [stderr] error: equal expressions as operands to `/`
[INFO] [stderr]    --> src/lib.rs:994:19
[INFO] [stderr]     |
[INFO] [stderr] 994 |         let nan = 0.0f64/0.0;
[INFO] [stderr]     |                   ^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#eq_op
[INFO] [stderr] 
[INFO] [stderr] warning: constant division of 0.0 with 0.0 will always result in NaN
[INFO] [stderr]    --> src/lib.rs:994:19
[INFO] [stderr]     |
[INFO] [stderr] 994 |         let nan = 0.0f64/0.0;
[INFO] [stderr]     |                   ^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(clippy::zero_divided_by_zero)] on by default
[INFO] [stderr]     = help: Consider using `std::f64::NAN` if you would like a constant representing NaN
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#zero_divided_by_zero
[INFO] [stderr] 
[INFO] [stderr] warning: The use of negated comparison operators on partially ordered types produces code that is hard to read and refactor. Please consider using the `partial_cmp` method instead, to make it clear that the two values could be incomparable.
[INFO] [stderr]    --> src/lib.rs:997:17
[INFO] [stderr]     |
[INFO] [stderr] 997 |         assert!(!(n < m));
[INFO] [stderr]     |                 ^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(clippy::neg_cmp_op_on_partial_ord)] on by default
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#neg_cmp_op_on_partial_ord
[INFO] [stderr] 
[INFO] [stderr] warning: The use of negated comparison operators on partially ordered types produces code that is hard to read and refactor. Please consider using the `partial_cmp` method instead, to make it clear that the two values could be incomparable.
[INFO] [stderr]    --> src/lib.rs:998:17
[INFO] [stderr]     |
[INFO] [stderr] 998 |         assert!(!(n > m));
[INFO] [stderr]     |                 ^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#neg_cmp_op_on_partial_ord
[INFO] [stderr] 
[INFO] [stderr] warning: The use of negated comparison operators on partially ordered types produces code that is hard to read and refactor. Please consider using the `partial_cmp` method instead, to make it clear that the two values could be incomparable.
[INFO] [stderr]    --> src/lib.rs:999:17
[INFO] [stderr]     |
[INFO] [stderr] 999 |         assert!(!(n <= m));
[INFO] [stderr]     |                 ^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#neg_cmp_op_on_partial_ord
[INFO] [stderr] 
[INFO] [stderr] warning: The use of negated comparison operators on partially ordered types produces code that is hard to read and refactor. Please consider using the `partial_cmp` method instead, to make it clear that the two values could be incomparable.
[INFO] [stderr]     --> src/lib.rs:1000:17
[INFO] [stderr]      |
[INFO] [stderr] 1000 |         assert!(!(n >= m));
[INFO] [stderr]      |                 ^^^^^^^^^
[INFO] [stderr]      |
[INFO] [stderr]      = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#neg_cmp_op_on_partial_ord
[INFO] [stderr] 
[INFO] [stderr] warning: The use of negated comparison operators on partially ordered types produces code that is hard to read and refactor. Please consider using the `partial_cmp` method instead, to make it clear that the two values could be incomparable.
[INFO] [stderr]     --> src/lib.rs:1004:17
[INFO] [stderr]      |
[INFO] [stderr] 1004 |         assert!(!(n < one));
[INFO] [stderr]      |                 ^^^^^^^^^^
[INFO] [stderr]      |
[INFO] [stderr]      = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#neg_cmp_op_on_partial_ord
[INFO] [stderr] 
[INFO] [stderr] warning: The use of negated comparison operators on partially ordered types produces code that is hard to read and refactor. Please consider using the `partial_cmp` method instead, to make it clear that the two values could be incomparable.
[INFO] [stderr]     --> src/lib.rs:1005:17
[INFO] [stderr]      |
[INFO] [stderr] 1005 |         assert!(!(n > one));
[INFO] [stderr]      |                 ^^^^^^^^^^
[INFO] [stderr]      |
[INFO] [stderr]      = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#neg_cmp_op_on_partial_ord
[INFO] [stderr] 
[INFO] [stderr] warning: The use of negated comparison operators on partially ordered types produces code that is hard to read and refactor. Please consider using the `partial_cmp` method instead, to make it clear that the two values could be incomparable.
[INFO] [stderr]     --> src/lib.rs:1006:17
[INFO] [stderr]      |
[INFO] [stderr] 1006 |         assert!(!(n <= one));
[INFO] [stderr]      |                 ^^^^^^^^^^^
[INFO] [stderr]      |
[INFO] [stderr]      = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#neg_cmp_op_on_partial_ord
[INFO] [stderr] 
[INFO] [stderr] warning: The use of negated comparison operators on partially ordered types produces code that is hard to read and refactor. Please consider using the `partial_cmp` method instead, to make it clear that the two values could be incomparable.
[INFO] [stderr]     --> src/lib.rs:1007:17
[INFO] [stderr]      |
[INFO] [stderr] 1007 |         assert!(!(n >= one));
[INFO] [stderr]      |                 ^^^^^^^^^^^
[INFO] [stderr]      |
[INFO] [stderr]      = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#neg_cmp_op_on_partial_ord
[INFO] [stderr] 
[INFO] [stderr] warning: The use of negated comparison operators on partially ordered types produces code that is hard to read and refactor. Please consider using the `partial_cmp` method instead, to make it clear that the two values could be incomparable.
[INFO] [stderr]     --> src/lib.rs:1011:17
[INFO] [stderr]      |
[INFO] [stderr] 1011 |         assert!(!(u < v));
[INFO] [stderr]      |                 ^^^^^^^^
[INFO] [stderr]      |
[INFO] [stderr]      = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#neg_cmp_op_on_partial_ord
[INFO] [stderr] 
[INFO] [stderr] warning: The use of negated comparison operators on partially ordered types produces code that is hard to read and refactor. Please consider using the `partial_cmp` method instead, to make it clear that the two values could be incomparable.
[INFO] [stderr]     --> src/lib.rs:1012:17
[INFO] [stderr]      |
[INFO] [stderr] 1012 |         assert!(!(u > v));
[INFO] [stderr]      |                 ^^^^^^^^
[INFO] [stderr]      |
[INFO] [stderr]      = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#neg_cmp_op_on_partial_ord
[INFO] [stderr] 
[INFO] [stderr] warning: The use of negated comparison operators on partially ordered types produces code that is hard to read and refactor. Please consider using the `partial_cmp` method instead, to make it clear that the two values could be incomparable.
[INFO] [stderr]     --> src/lib.rs:1013:17
[INFO] [stderr]      |
[INFO] [stderr] 1013 |         assert!(!(u <= v));
[INFO] [stderr]      |                 ^^^^^^^^^
[INFO] [stderr]      |
[INFO] [stderr]      = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#neg_cmp_op_on_partial_ord
[INFO] [stderr] 
[INFO] [stderr] warning: The use of negated comparison operators on partially ordered types produces code that is hard to read and refactor. Please consider using the `partial_cmp` method instead, to make it clear that the two values could be incomparable.
[INFO] [stderr]     --> src/lib.rs:1014:17
[INFO] [stderr]      |
[INFO] [stderr] 1014 |         assert!(!(u >= v));
[INFO] [stderr]      |                 ^^^^^^^^^
[INFO] [stderr]      |
[INFO] [stderr]      = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#neg_cmp_op_on_partial_ord
[INFO] [stderr] 
[INFO] [stderr] warning: The use of negated comparison operators on partially ordered types produces code that is hard to read and refactor. Please consider using the `partial_cmp` method instead, to make it clear that the two values could be incomparable.
[INFO] [stderr]     --> src/lib.rs:1018:17
[INFO] [stderr]      |
[INFO] [stderr] 1018 |         assert!(!(s < t));
[INFO] [stderr]      |                 ^^^^^^^^
[INFO] [stderr]      |
[INFO] [stderr]      = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#neg_cmp_op_on_partial_ord
[INFO] [stderr] 
[INFO] [stderr] warning: The use of negated comparison operators on partially ordered types produces code that is hard to read and refactor. Please consider using the `partial_cmp` method instead, to make it clear that the two values could be incomparable.
[INFO] [stderr]     --> src/lib.rs:1020:17
[INFO] [stderr]      |
[INFO] [stderr] 1020 |         assert!(!(s <= one));
[INFO] [stderr]      |                 ^^^^^^^^^^^
[INFO] [stderr]      |
[INFO] [stderr]      = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#neg_cmp_op_on_partial_ord
[INFO] [stderr] 
[INFO] [stderr] warning: You are using an explicit closure for cloning elements
[INFO] [stderr]     --> src/lib.rs:1029:38
[INFO] [stderr]      |
[INFO] [stderr] 1029 |           let list: LinkedList<&str> = vec!["just", "one", "test", "more"].iter()
[INFO] [stderr]      |  ______________________________________^
[INFO] [stderr] 1030 | |                                                                    .map(|&s| s)
[INFO] [stderr]      | |_______________________________________________________________________________^ help: Consider calling the dedicated `cloned` method: `vec!["just", "one", "test", "more"].iter().cloned()`
[INFO] [stderr]      |
[INFO] [stderr]      = note: #[warn(clippy::map_clone)] on by default
[INFO] [stderr]      = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#map_clone
[INFO] [stderr] 
[INFO] [stderr] warning: the function has a cyclomatic complexity of 28
[INFO] [stderr]     --> src/lib.rs:1066:5
[INFO] [stderr]      |
[INFO] [stderr] 1066 | /     fn test_cursor_insert() {
[INFO] [stderr] 1067 | |         let mut list = list_from(&[0,1,2,3,4]);
[INFO] [stderr] 1068 | |         {
[INFO] [stderr] 1069 | |             let mut curs = list.cursor();
[INFO] [stderr] ...    |
[INFO] [stderr] 1116 | |         assert_eq!(list.len(), 12);
[INFO] [stderr] 1117 | |     }
[INFO] [stderr]      | |_____^
[INFO] [stderr]      |
[INFO] [stderr]      = note: #[warn(clippy::cyclomatic_complexity)] on by default
[INFO] [stderr]      = help: you could split it up into multiple smaller functions
[INFO] [stderr]      = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#cyclomatic_complexity
[INFO] [stderr] 
[INFO] [stderr] warning: the function has a cyclomatic complexity of 30
[INFO] [stderr]     --> src/lib.rs:1120:5
[INFO] [stderr]      |
[INFO] [stderr] 1120 | /     fn test_cursor_remove() {
[INFO] [stderr] 1121 | |         let mut list = list_from(&[0,1,2,3,4,5,6,7]);
[INFO] [stderr] 1122 | |         {
[INFO] [stderr] 1123 | |             let mut curs = list.cursor();
[INFO] [stderr] ...    |
[INFO] [stderr] 1161 | |         assert_eq!(list.len(), 2);
[INFO] [stderr] 1162 | |     }
[INFO] [stderr]      | |_____^
[INFO] [stderr]      |
[INFO] [stderr]      = help: you could split it up into multiple smaller functions
[INFO] [stderr]      = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#cyclomatic_complexity
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to 3 previous errors
[INFO] [stderr] 
[INFO] [stderr] error: Could not compile `linked-list`.
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `"docker" "inspect" "28fbcfad7f7b3ab57384d06d36d22cab87a9625b2caed02622257a0dde1ecbfe"`
[INFO] running `"docker" "rm" "-f" "28fbcfad7f7b3ab57384d06d36d22cab87a9625b2caed02622257a0dde1ecbfe"`
[INFO] [stdout] 28fbcfad7f7b3ab57384d06d36d22cab87a9625b2caed02622257a0dde1ecbfe