[INFO] crate rcomplex 0.1.2 is already in cache
[INFO] extracting crate rcomplex 0.1.2 into work/ex/clippy-test-run/sources/stable/reg/rcomplex/0.1.2
[INFO] extracting crate rcomplex 0.1.2 into work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/reg/rcomplex/0.1.2
[INFO] validating manifest of rcomplex-0.1.2 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 rcomplex-0.1.2 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 rcomplex-0.1.2
[INFO] finished frobbing rcomplex-0.1.2
[INFO] frobbed toml for rcomplex-0.1.2 written to work/ex/clippy-test-run/sources/stable/reg/rcomplex/0.1.2/Cargo.toml
[INFO] started frobbing rcomplex-0.1.2
[INFO] finished frobbing rcomplex-0.1.2
[INFO] frobbed toml for rcomplex-0.1.2 written to work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/reg/rcomplex/0.1.2/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 rcomplex-0.1.2 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/rcomplex/0.1.2:/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] f7a681a5e51cdecf1e1d2f412be37ce93107ca5263245f39cf0d5806bd456c06
[INFO] running `"docker" "start" "-a" "f7a681a5e51cdecf1e1d2f412be37ce93107ca5263245f39cf0d5806bd456c06"`
[INFO] [stderr]     Checking rcomplex v0.1.2 (/opt/crater/workdir)
[INFO] [stderr] warning: redundant field names in struct initialization
[INFO] [stderr]   --> src/complex.rs:30:13
[INFO] [stderr]    |
[INFO] [stderr] 30 |             real: real, 
[INFO] [stderr]    |             ^^^^^^^^^^ help: replace it with: `real`
[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/complex.rs:31:13
[INFO] [stderr]    |
[INFO] [stderr] 31 |             img: img
[INFO] [stderr]    |             ^^^^^^^^ help: replace it with: `img`
[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/complex.rs:30:13
[INFO] [stderr]    |
[INFO] [stderr] 30 |             real: real, 
[INFO] [stderr]    |             ^^^^^^^^^^ help: replace it with: `real`
[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/complex.rs:31:13
[INFO] [stderr]    |
[INFO] [stderr] 31 |             img: img
[INFO] [stderr]    |             ^^^^^^^^ help: replace it with: `img`
[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: returning the result of a let binding from a block. Consider returning the expression directly.
[INFO] [stderr]   --> src/complex.rs:48:9
[INFO] [stderr]    |
[INFO] [stderr] 48 |         polar
[INFO] [stderr]    |         ^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::let_and_return)] on by default
[INFO] [stderr] note: this expression can be directly returned
[INFO] [stderr]   --> src/complex.rs:44:21
[INFO] [stderr]    |
[INFO] [stderr] 44 |           let polar = Polar {
[INFO] [stderr]    |  _____________________^
[INFO] [stderr] 45 | |             r : (r2).sqrt(),
[INFO] [stderr] 46 | |             theta : (self.real/self.img).atan(),
[INFO] [stderr] 47 | |         };
[INFO] [stderr]    | |_________^
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#let_and_return
[INFO] [stderr] 
[INFO] [stderr] warning: methods called `to_*` usually take self by reference; consider choosing a less ambiguous name
[INFO] [stderr]   --> src/complex.rs:12:23
[INFO] [stderr]    |
[INFO] [stderr] 12 |     pub fn to_complex(self) -> Complex {
[INFO] [stderr]    |                       ^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::wrong_self_convention)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#wrong_self_convention
[INFO] [stderr] 
[INFO] [stderr] warning: returning the result of a let binding from a block. Consider returning the expression directly.
[INFO] [stderr]   --> src/complex.rs:48:9
[INFO] [stderr]    |
[INFO] [stderr] 48 |         polar
[INFO] [stderr]    |         ^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::let_and_return)] on by default
[INFO] [stderr] note: this expression can be directly returned
[INFO] [stderr]   --> src/complex.rs:44:21
[INFO] [stderr]    |
[INFO] [stderr] 44 |           let polar = Polar {
[INFO] [stderr]    |  _____________________^
[INFO] [stderr] 45 | |             r : (r2).sqrt(),
[INFO] [stderr] 46 | |             theta : (self.real/self.img).atan(),
[INFO] [stderr] 47 | |         };
[INFO] [stderr]    | |_________^
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#let_and_return
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around function argument
[INFO] [stderr]   --> src/lib.rs:71:40
[INFO] [stderr]    |
[INFO] [stderr] 71 |         let expected = complex::Complex::new(((c4.real).cos()*(c4.img).cosh()), (-(c4.real).sin()*(c4.img).sinh()));
[INFO] [stderr]    |                                              ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_parens)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around function argument
[INFO] [stderr]   --> src/lib.rs:71:75
[INFO] [stderr]    |
[INFO] [stderr] 71 |         let expected = complex::Complex::new(((c4.real).cos()*(c4.img).cosh()), (-(c4.real).sin()*(c4.img).sinh()));
[INFO] [stderr]    |                                                                                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stderr] 
[INFO] [stderr] warning: methods called `to_*` usually take self by reference; consider choosing a less ambiguous name
[INFO] [stderr]   --> src/complex.rs:12:23
[INFO] [stderr]    |
[INFO] [stderr] 12 |     pub fn to_complex(self) -> Complex {
[INFO] [stderr]    |                       ^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::wrong_self_convention)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#wrong_self_convention
[INFO] [stderr] 
[INFO] [stderr] error: equal expressions as operands to `==`
[INFO] [stderr]  --> tests/integration_test.rs:8:13
[INFO] [stderr]   |
[INFO] [stderr] 8 |     assert!(c1 == c1);
[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: aborting due to previous error
[INFO] [stderr] 
[INFO] [stderr] error: Could not compile `rcomplex`.
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `"docker" "inspect" "f7a681a5e51cdecf1e1d2f412be37ce93107ca5263245f39cf0d5806bd456c06"`
[INFO] running `"docker" "rm" "-f" "f7a681a5e51cdecf1e1d2f412be37ce93107ca5263245f39cf0d5806bd456c06"`
[INFO] [stdout] f7a681a5e51cdecf1e1d2f412be37ce93107ca5263245f39cf0d5806bd456c06