[INFO] crate kay_codegen 0.3.1 is already in cache
[INFO] extracting crate kay_codegen 0.3.1 into work/ex/clippy-test-run/sources/stable/reg/kay_codegen/0.3.1
[INFO] extracting crate kay_codegen 0.3.1 into work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/reg/kay_codegen/0.3.1
[INFO] validating manifest of kay_codegen-0.3.1 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 kay_codegen-0.3.1 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 kay_codegen-0.3.1
[INFO] finished frobbing kay_codegen-0.3.1
[INFO] frobbed toml for kay_codegen-0.3.1 written to work/ex/clippy-test-run/sources/stable/reg/kay_codegen/0.3.1/Cargo.toml
[INFO] started frobbing kay_codegen-0.3.1
[INFO] finished frobbing kay_codegen-0.3.1
[INFO] frobbed toml for kay_codegen-0.3.1 written to work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/reg/kay_codegen/0.3.1/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 kay_codegen-0.3.1 against stable for clippy-test-run
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/clippy-test-run/worker-6/stable:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/clippy-test-run/sources/stable/reg/kay_codegen/0.3.1:/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" "-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] 86e8983de99815726615b2f557142ea2c05961260a48002b3ef1fcdbdcbb3c2a
[INFO] running `"docker" "start" "-a" "86e8983de99815726615b2f557142ea2c05961260a48002b3ef1fcdbdcbb3c2a"`
[INFO] [stderr]     Checking syn v0.15.26
[INFO] [stderr]     Checking kay_codegen v0.3.1 (/opt/crater/workdir)
[INFO] [stderr] warning: this `else { if .. }` block can be collapsed
[INFO] [stderr]    --> src/generators.rs:409:20
[INFO] [stderr]     |
[INFO] [stderr] 409 |               } else {
[INFO] [stderr]     |  ____________________^
[INFO] [stderr] 410 | |                 if let Type::Reference(TypeReference{elem: ref refd_type, ..}) = ty {
[INFO] [stderr] 411 | |                     Some(refd_type.into_token_stream().to_string())
[INFO] [stderr] 412 | |                 } else {
[INFO] [stderr] 413 | |                     Some(ty.into_token_stream().to_string())
[INFO] [stderr] 414 | |                 }
[INFO] [stderr] 415 | |             }
[INFO] [stderr]     | |_____________^
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(clippy::collapsible_if)] on by default
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#collapsible_if
[INFO] [stderr] help: try
[INFO] [stderr]     |
[INFO] [stderr] 409 |             } else if let Type::Reference(TypeReference{elem: ref refd_type, ..}) = ty {
[INFO] [stderr] 410 |     Some(refd_type.into_token_stream().to_string())
[INFO] [stderr] 411 | } else {
[INFO] [stderr] 412 |     Some(ty.into_token_stream().to_string())
[INFO] [stderr] 413 | }
[INFO] [stderr]     |
[INFO] [stderr] 
[INFO] [stderr] warning: You matched a field with a wildcard pattern. Consider using `..` instead
[INFO] [stderr]    --> src/parsers.rs:142:41
[INFO] [stderr]     |
[INFO] [stderr] 142 |                     Type::Path(TypePath{qself: _, path: ::syn::Path { ref segments, .. }}) => {
[INFO] [stderr]     |                                         ^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(clippy::unneeded_field_pattern)] on by default
[INFO] [stderr]     = help: Try with `TypePath { path: ::syn::Path { ref segments, .. }, .. }`
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#unneeded_field_pattern
[INFO] [stderr] 
[INFO] [stderr] warning: this `else { if .. }` block can be collapsed
[INFO] [stderr]    --> src/generators.rs:409:20
[INFO] [stderr]     |
[INFO] [stderr] 409 |               } else {
[INFO] [stderr]     |  ____________________^
[INFO] [stderr] 410 | |                 if let Type::Reference(TypeReference{elem: ref refd_type, ..}) = ty {
[INFO] [stderr] 411 | |                     Some(refd_type.into_token_stream().to_string())
[INFO] [stderr] 412 | |                 } else {
[INFO] [stderr] 413 | |                     Some(ty.into_token_stream().to_string())
[INFO] [stderr] 414 | |                 }
[INFO] [stderr] 415 | |             }
[INFO] [stderr]     | |_____________^
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(clippy::collapsible_if)] on by default
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#collapsible_if
[INFO] [stderr] help: try
[INFO] [stderr]     |
[INFO] [stderr] 409 |             } else if let Type::Reference(TypeReference{elem: ref refd_type, ..}) = ty {
[INFO] [stderr] 410 |     Some(refd_type.into_token_stream().to_string())
[INFO] [stderr] 411 | } else {
[INFO] [stderr] 412 |     Some(ty.into_token_stream().to_string())
[INFO] [stderr] 413 | }
[INFO] [stderr]     |
[INFO] [stderr] 
[INFO] [stderr] warning: You matched a field with a wildcard pattern. Consider using `..` instead
[INFO] [stderr]    --> src/parsers.rs:142:41
[INFO] [stderr]     |
[INFO] [stderr] 142 |                     Type::Path(TypePath{qself: _, path: ::syn::Path { ref segments, .. }}) => {
[INFO] [stderr]     |                                         ^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(clippy::unneeded_field_pattern)] on by default
[INFO] [stderr]     = help: Try with `TypePath { path: ::syn::Path { ref segments, .. }, .. }`
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#unneeded_field_pattern
[INFO] [stderr] 
[INFO] [stderr] warning: single-character string constant used as pattern
[INFO] [stderr]    --> src/generators.rs:334:84
[INFO] [stderr]     |
[INFO] [stderr] 334 |         Pat::Ident(PatIdent{ref ident, ..}) => ident.to_string().trim_left_matches("_").to_owned(),
[INFO] [stderr]     |                                                                                    ^^^ help: try using a char instead: `'_'`
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(clippy::single_char_pattern)] on by default
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#single_char_pattern
[INFO] [stderr] 
[INFO] [stderr] warning: this creates an owned instance just for comparison
[INFO] [stderr]    --> src/parsers.rs:143:52
[INFO] [stderr]     |
[INFO] [stderr] 143 |                         if segments.iter().any(|s| s.ident.to_string() == "Fate") {
[INFO] [stderr]     |                                                    ^^^^^^^^^^^^^^^^^^^ help: try: `*s.ident`
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(clippy::cmp_owned)] on by default
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#cmp_owned
[INFO] [stderr] 
[INFO] [stderr] error: using `clone` on a double-reference; this will copy the reference instead of cloning the inner type
[INFO] [stderr]    --> src/parsers.rs:175:161
[INFO] [stderr]     |
[INFO] [stderr] 175 |     if let Some(FnArg::Captured(ArgCaptured{ty: Type::Reference(TypeReference{elem: ref ty_box, ref mutability, ..}), ..})) = sig.decl.inputs.last().map(|pair| pair.value().clone()) {
[INFO] [stderr]     |                                                                                                                                                                 ^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[deny(clippy::clone_double_ref)] on by default
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#clone_double_ref
[INFO] [stderr] help: try dereferencing it
[INFO] [stderr]     |
[INFO] [stderr] 175 |     if let Some(FnArg::Captured(ArgCaptured{ty: Type::Reference(TypeReference{elem: ref ty_box, ref mutability, ..}), ..})) = sig.decl.inputs.last().map(|pair| &(*pair.value()).clone()) {
[INFO] [stderr]     |                                                                                                                                                                 ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] help: or try being explicit about what type to clone
[INFO] [stderr]     |
[INFO] [stderr] 175 |     if let Some(FnArg::Captured(ArgCaptured{ty: Type::Reference(TypeReference{elem: ref ty_box, ref mutability, ..}), ..})) = sig.decl.inputs.last().map(|pair| &syn::FnArg::clone(pair.value())) {
[INFO] [stderr]     |                                                                                                                                                                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: this creates an owned instance just for comparison
[INFO] [stderr]    --> src/parsers.rs:178:16
[INFO] [stderr]     |
[INFO] [stderr] 178 |             if path.segments.last().unwrap().value().ident.to_string() == "World" {
[INFO] [stderr]     |                ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try: `*path.segments.last().unwrap().value().ident`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#cmp_owned
[INFO] [stderr] 
[INFO] [stderr] error: using `clone` on a double-reference; this will copy the reference instead of cloning the inner type
[INFO] [stderr]    --> src/parsers.rs:179:58
[INFO] [stderr]     |
[INFO] [stderr] 179 |                 match sig.decl.inputs.first().map(|pair| pair.value().clone()) {
[INFO] [stderr]     |                                                          ^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#clone_double_ref
[INFO] [stderr] help: try dereferencing it
[INFO] [stderr]     |
[INFO] [stderr] 179 |                 match sig.decl.inputs.first().map(|pair| &(*pair.value()).clone()) {
[INFO] [stderr]     |                                                          ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] help: or try being explicit about what type to clone
[INFO] [stderr]     |
[INFO] [stderr] 179 |                 match sig.decl.inputs.first().map(|pair| &syn::FnArg::clone(pair.value())) {
[INFO] [stderr]     |                                                          ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: this creates an owned instance just for comparison
[INFO] [stderr]    --> src/parsers.rs:189:88
[INFO] [stderr]     |
[INFO] [stderr] 189 |                                     Type::Path(TypePath{path: ref ret_ty_path, ..}) if ret_ty_path.segments.last().unwrap().value().ident.to_string() == "Self" || *ret_ty_path == *parent_path => {
[INFO] [stderr]     |                                                                                        ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try: `*ret_ty_path.segments.last().unwrap().value().ident`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#cmp_owned
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to 2 previous errors
[INFO] [stderr] 
[INFO] [stderr] error: Could not compile `kay_codegen`.
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] warning: single-character string constant used as pattern
[INFO] [stderr]    --> src/generators.rs:334:84
[INFO] [stderr]     |
[INFO] [stderr] 334 |         Pat::Ident(PatIdent{ref ident, ..}) => ident.to_string().trim_left_matches("_").to_owned(),
[INFO] [stderr]     |                                                                                    ^^^ help: try using a char instead: `'_'`
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(clippy::single_char_pattern)] on by default
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#single_char_pattern
[INFO] [stderr] 
[INFO] [stderr] warning: this creates an owned instance just for comparison
[INFO] [stderr]    --> src/parsers.rs:143:52
[INFO] [stderr]     |
[INFO] [stderr] 143 |                         if segments.iter().any(|s| s.ident.to_string() == "Fate") {
[INFO] [stderr]     |                                                    ^^^^^^^^^^^^^^^^^^^ help: try: `*s.ident`
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(clippy::cmp_owned)] on by default
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#cmp_owned
[INFO] [stderr] 
[INFO] [stderr] error: using `clone` on a double-reference; this will copy the reference instead of cloning the inner type
[INFO] [stderr]    --> src/parsers.rs:175:161
[INFO] [stderr]     |
[INFO] [stderr] 175 |     if let Some(FnArg::Captured(ArgCaptured{ty: Type::Reference(TypeReference{elem: ref ty_box, ref mutability, ..}), ..})) = sig.decl.inputs.last().map(|pair| pair.value().clone()) {
[INFO] [stderr]     |                                                                                                                                                                 ^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[deny(clippy::clone_double_ref)] on by default
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#clone_double_ref
[INFO] [stderr] help: try dereferencing it
[INFO] [stderr]     |
[INFO] [stderr] 175 |     if let Some(FnArg::Captured(ArgCaptured{ty: Type::Reference(TypeReference{elem: ref ty_box, ref mutability, ..}), ..})) = sig.decl.inputs.last().map(|pair| &(*pair.value()).clone()) {
[INFO] [stderr]     |                                                                                                                                                                 ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] help: or try being explicit about what type to clone
[INFO] [stderr]     |
[INFO] [stderr] 175 |     if let Some(FnArg::Captured(ArgCaptured{ty: Type::Reference(TypeReference{elem: ref ty_box, ref mutability, ..}), ..})) = sig.decl.inputs.last().map(|pair| &syn::FnArg::clone(pair.value())) {
[INFO] [stderr]     |                                                                                                                                                                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: this creates an owned instance just for comparison
[INFO] [stderr]    --> src/parsers.rs:178:16
[INFO] [stderr]     |
[INFO] [stderr] 178 |             if path.segments.last().unwrap().value().ident.to_string() == "World" {
[INFO] [stderr]     |                ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try: `*path.segments.last().unwrap().value().ident`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#cmp_owned
[INFO] [stderr] 
[INFO] [stderr] error: using `clone` on a double-reference; this will copy the reference instead of cloning the inner type
[INFO] [stderr]    --> src/parsers.rs:179:58
[INFO] [stderr]     |
[INFO] [stderr] 179 |                 match sig.decl.inputs.first().map(|pair| pair.value().clone()) {
[INFO] [stderr]     |                                                          ^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#clone_double_ref
[INFO] [stderr] help: try dereferencing it
[INFO] [stderr]     |
[INFO] [stderr] 179 |                 match sig.decl.inputs.first().map(|pair| &(*pair.value()).clone()) {
[INFO] [stderr]     |                                                          ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] help: or try being explicit about what type to clone
[INFO] [stderr]     |
[INFO] [stderr] 179 |                 match sig.decl.inputs.first().map(|pair| &syn::FnArg::clone(pair.value())) {
[INFO] [stderr]     |                                                          ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: this creates an owned instance just for comparison
[INFO] [stderr]    --> src/parsers.rs:189:88
[INFO] [stderr]     |
[INFO] [stderr] 189 |                                     Type::Path(TypePath{path: ref ret_ty_path, ..}) if ret_ty_path.segments.last().unwrap().value().ident.to_string() == "Self" || *ret_ty_path == *parent_path => {
[INFO] [stderr]     |                                                                                        ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try: `*ret_ty_path.segments.last().unwrap().value().ident`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#cmp_owned
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to 2 previous errors
[INFO] [stderr] 
[INFO] [stderr] error: Could not compile `kay_codegen`.
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `"docker" "inspect" "86e8983de99815726615b2f557142ea2c05961260a48002b3ef1fcdbdcbb3c2a"`
[INFO] running `"docker" "rm" "-f" "86e8983de99815726615b2f557142ea2c05961260a48002b3ef1fcdbdcbb3c2a"`
[INFO] [stdout] 86e8983de99815726615b2f557142ea2c05961260a48002b3ef1fcdbdcbb3c2a