[INFO] crate morphism 0.4.1 is already in cache [INFO] extracting crate morphism 0.4.1 into work/ex/clippy-test-run/sources/stable/reg/morphism/0.4.1 [INFO] extracting crate morphism 0.4.1 into work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/reg/morphism/0.4.1 [INFO] validating manifest of morphism-0.4.1 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 morphism-0.4.1 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 morphism-0.4.1 [INFO] finished frobbing morphism-0.4.1 [INFO] frobbed toml for morphism-0.4.1 written to work/ex/clippy-test-run/sources/stable/reg/morphism/0.4.1/Cargo.toml [INFO] started frobbing morphism-0.4.1 [INFO] finished frobbing morphism-0.4.1 [INFO] frobbed toml for morphism-0.4.1 written to work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/reg/morphism/0.4.1/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 morphism-0.4.1 against stable+rustflags=-Dclippy::into_iter_on_array for clippy-test-run [INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/clippy-test-run/worker-3/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/reg/morphism/0.4.1:/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 -Dclippy::into_iter_on_array" "-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] 3eca1e06d841b111100662ea1d1bae7a0a8a4f0b7ae355dec6d61ba6bc788a89 [INFO] running `"docker" "start" "-a" "3eca1e06d841b111100662ea1d1bae7a0a8a4f0b7ae355dec6d61ba6bc788a89"` [INFO] [stderr] Checking morphism v0.4.1 (/opt/crater/workdir) [INFO] [stderr] warning: unneeded unit return type [INFO] [stderr] --> src/lib.rs:64:60 [INFO] [stderr] | [INFO] [stderr] 64 | pub unsafe fn unsafe_push_front(&mut self, f: F) -> () [INFO] [stderr] | ^^^^^ help: remove the `-> ()` [INFO] [stderr] | [INFO] [stderr] = note: #[warn(clippy::unused_unit)] on by default [INFO] [stderr] = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#unused_unit [INFO] [stderr] [INFO] [stderr] warning: unneeded unit return type [INFO] [stderr] --> src/lib.rs:127:43 [INFO] [stderr] | [INFO] [stderr] 127 | pub fn push_front(&mut self, f: F) -> () [INFO] [stderr] | ^^^^^ help: remove the `-> ()` [INFO] [stderr] | [INFO] [stderr] = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#unused_unit [INFO] [stderr] [INFO] [stderr] warning: unneeded unit return type [INFO] [stderr] --> src/lib.rs:138:59 [INFO] [stderr] | [INFO] [stderr] 138 | pub unsafe fn unsafe_push_back(&mut self, f: F) -> () [INFO] [stderr] | ^^^^^ help: remove the `-> ()` [INFO] [stderr] | [INFO] [stderr] = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#unused_unit [INFO] [stderr] [INFO] [stderr] warning: unneeded unit return type [INFO] [stderr] --> src/lib.rs:64:60 [INFO] [stderr] | [INFO] [stderr] 64 | pub unsafe fn unsafe_push_front(&mut self, f: F) -> () [INFO] [stderr] | ^^^^^ help: remove the `-> ()` [INFO] [stderr] | [INFO] [stderr] = note: #[warn(clippy::unused_unit)] on by default [INFO] [stderr] = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#unused_unit [INFO] [stderr] [INFO] [stderr] warning: unneeded unit return type [INFO] [stderr] --> src/lib.rs:201:42 [INFO] [stderr] | [INFO] [stderr] 201 | pub fn push_back(&mut self, f: F) -> () [INFO] [stderr] | ^^^^^ help: remove the `-> ()` [INFO] [stderr] | [INFO] [stderr] = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#unused_unit [INFO] [stderr] [INFO] [stderr] warning: unneeded unit return type [INFO] [stderr] --> src/lib.rs:127:43 [INFO] [stderr] | [INFO] [stderr] 127 | pub fn push_front(&mut self, f: F) -> () [INFO] [stderr] | ^^^^^ help: remove the `-> ()` [INFO] [stderr] | [INFO] [stderr] = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#unused_unit [INFO] [stderr] [INFO] [stderr] warning: unneeded unit return type [INFO] [stderr] --> src/lib.rs:138:59 [INFO] [stderr] | [INFO] [stderr] 138 | pub unsafe fn unsafe_push_back(&mut self, f: F) -> () [INFO] [stderr] | ^^^^^ help: remove the `-> ()` [INFO] [stderr] | [INFO] [stderr] = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#unused_unit [INFO] [stderr] [INFO] [stderr] warning: unneeded unit return type [INFO] [stderr] --> src/lib.rs:201:42 [INFO] [stderr] | [INFO] [stderr] 201 | pub fn push_back(&mut self, f: F) -> () [INFO] [stderr] | ^^^^^ help: remove the `-> ()` [INFO] [stderr] | [INFO] [stderr] = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#unused_unit [INFO] [stderr] [INFO] [stderr] warning: long literal lacking separators [INFO] [stderr] --> src/lib.rs:281:21 [INFO] [stderr] | [INFO] [stderr] 281 | for _ in 0..100000u64 { [INFO] [stderr] | ^^^^^^^^^ help: consider: `100_000u64` [INFO] [stderr] | [INFO] [stderr] = note: #[warn(clippy::unreadable_literal)] on by default [INFO] [stderr] = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#unreadable_literal [INFO] [stderr] [INFO] [stderr] warning: very complex type used. Consider factoring parts into `type` definitions [INFO] [stderr] --> src/lib.rs:33:11 [INFO] [stderr] | [INFO] [stderr] 33 | mfns: LinkedList *const () + 'a>>>, [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: #[warn(clippy::type_complexity)] on by default [INFO] [stderr] = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#type_complexity [INFO] [stderr] [INFO] [stderr] warning: methods called `new` usually return `Self` [INFO] [stderr] --> src/lib.rs:50:5 [INFO] [stderr] | [INFO] [stderr] 50 | / pub fn new<'a, A>() -> Morphism<'a, A> { [INFO] [stderr] 51 | | Morphism { [INFO] [stderr] 52 | | mfns: { [INFO] [stderr] 53 | | let mut mfns = LinkedList::new(); [INFO] [stderr] ... | [INFO] [stderr] 58 | | } [INFO] [stderr] 59 | | } [INFO] [stderr] | |_____^ [INFO] [stderr] | [INFO] [stderr] = note: #[warn(clippy::new_ret_no_self)] on by default [INFO] [stderr] = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#new_ret_no_self [INFO] [stderr] [INFO] [stderr] warning: you don't need to add `&` to all patterns [INFO] [stderr] --> src/lib.rs:67:9 [INFO] [stderr] | [INFO] [stderr] 67 | / match self { [INFO] [stderr] 68 | | &mut Morphism { [INFO] [stderr] 69 | | ref mut mfns, [INFO] [stderr] 70 | | .. [INFO] [stderr] ... | [INFO] [stderr] 83 | | }, [INFO] [stderr] 84 | | } [INFO] [stderr] | |_________^ [INFO] [stderr] | [INFO] [stderr] = note: #[warn(clippy::match_ref_pats)] on by default [INFO] [stderr] = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#match_ref_pats [INFO] [stderr] help: instead of prefixing all patterns with `&`, you can dereference the expression [INFO] [stderr] | [INFO] [stderr] 67 | match *self { [INFO] [stderr] 68 | Morphism { [INFO] [stderr] 69 | ref mut mfns, [INFO] [stderr] 70 | .. [INFO] [stderr] 71 | } [INFO] [stderr] | [INFO] [stderr] [INFO] [stderr] warning: you don't need to add `&` to all patterns [INFO] [stderr] --> src/lib.rs:141:9 [INFO] [stderr] | [INFO] [stderr] 141 | / match self { [INFO] [stderr] 142 | | &mut Morphism { [INFO] [stderr] 143 | | ref mut mfns, [INFO] [stderr] 144 | | .. [INFO] [stderr] ... | [INFO] [stderr] 157 | | }, [INFO] [stderr] 158 | | } [INFO] [stderr] | |_________^ [INFO] [stderr] | [INFO] [stderr] = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#match_ref_pats [INFO] [stderr] help: instead of prefixing all patterns with `&`, you can dereference the expression [INFO] [stderr] | [INFO] [stderr] 141 | match *self { [INFO] [stderr] 142 | Morphism { [INFO] [stderr] 143 | ref mut mfns, [INFO] [stderr] 144 | .. [INFO] [stderr] 145 | } [INFO] [stderr] | [INFO] [stderr] [INFO] [stderr] warning: very complex type used. Consider factoring parts into `type` definitions [INFO] [stderr] --> src/lib.rs:33:11 [INFO] [stderr] | [INFO] [stderr] 33 | mfns: LinkedList *const () + 'a>>>, [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: #[warn(clippy::type_complexity)] on by default [INFO] [stderr] = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#type_complexity [INFO] [stderr] [INFO] [stderr] warning: methods called `new` usually return `Self` [INFO] [stderr] --> src/lib.rs:50:5 [INFO] [stderr] | [INFO] [stderr] 50 | / pub fn new<'a, A>() -> Morphism<'a, A> { [INFO] [stderr] 51 | | Morphism { [INFO] [stderr] 52 | | mfns: { [INFO] [stderr] 53 | | let mut mfns = LinkedList::new(); [INFO] [stderr] ... | [INFO] [stderr] 58 | | } [INFO] [stderr] 59 | | } [INFO] [stderr] | |_____^ [INFO] [stderr] | [INFO] [stderr] = note: #[warn(clippy::new_ret_no_self)] on by default [INFO] [stderr] = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#new_ret_no_self [INFO] [stderr] [INFO] [stderr] warning: you don't need to add `&` to all patterns [INFO] [stderr] --> src/lib.rs:67:9 [INFO] [stderr] | [INFO] [stderr] 67 | / match self { [INFO] [stderr] 68 | | &mut Morphism { [INFO] [stderr] 69 | | ref mut mfns, [INFO] [stderr] 70 | | .. [INFO] [stderr] ... | [INFO] [stderr] 83 | | }, [INFO] [stderr] 84 | | } [INFO] [stderr] | |_________^ [INFO] [stderr] | [INFO] [stderr] = note: #[warn(clippy::match_ref_pats)] on by default [INFO] [stderr] = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#match_ref_pats [INFO] [stderr] help: instead of prefixing all patterns with `&`, you can dereference the expression [INFO] [stderr] | [INFO] [stderr] 67 | match *self { [INFO] [stderr] 68 | Morphism { [INFO] [stderr] 69 | ref mut mfns, [INFO] [stderr] 70 | .. [INFO] [stderr] 71 | } [INFO] [stderr] | [INFO] [stderr] [INFO] [stderr] warning: you don't need to add `&` to all patterns [INFO] [stderr] --> src/lib.rs:141:9 [INFO] [stderr] | [INFO] [stderr] 141 | / match self { [INFO] [stderr] 142 | | &mut Morphism { [INFO] [stderr] 143 | | ref mut mfns, [INFO] [stderr] 144 | | .. [INFO] [stderr] ... | [INFO] [stderr] 157 | | }, [INFO] [stderr] 158 | | } [INFO] [stderr] | |_________^ [INFO] [stderr] | [INFO] [stderr] = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#match_ref_pats [INFO] [stderr] help: instead of prefixing all patterns with `&`, you can dereference the expression [INFO] [stderr] | [INFO] [stderr] 141 | match *self { [INFO] [stderr] 142 | Morphism { [INFO] [stderr] 143 | ref mut mfns, [INFO] [stderr] 144 | .. [INFO] [stderr] 145 | } [INFO] [stderr] | [INFO] [stderr] [INFO] [stderr] warning: redundant closure found [INFO] [stderr] --> src/lib.rs:295:19 [INFO] [stderr] | [INFO] [stderr] 295 | .head(|x| Some(x)); [INFO] [stderr] | ^^^^^^^^^^^ help: remove closure as shown: `Some` [INFO] [stderr] | [INFO] [stderr] = note: #[warn(clippy::redundant_closure)] on by default [INFO] [stderr] = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#redundant_closure [INFO] [stderr] [INFO] [stderr] error[E0554]: #![feature] may not be used on the stable release channel [INFO] [stderr] --> benches/bench.rs:1:1 [INFO] [stderr] | [INFO] [stderr] 1 | #![feature(test)] [INFO] [stderr] | ^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] error: aborting due to previous error [INFO] [stderr] [INFO] [stderr] For more information about this error, try `rustc --explain E0554`. [INFO] [stderr] error: Could not compile `morphism`. [INFO] [stderr] [INFO] [stderr] To learn more, run the command again with --verbose. [INFO] running `"docker" "inspect" "3eca1e06d841b111100662ea1d1bae7a0a8a4f0b7ae355dec6d61ba6bc788a89"` [INFO] running `"docker" "rm" "-f" "3eca1e06d841b111100662ea1d1bae7a0a8a4f0b7ae355dec6d61ba6bc788a89"` [INFO] [stdout] 3eca1e06d841b111100662ea1d1bae7a0a8a4f0b7ae355dec6d61ba6bc788a89