[INFO] crate rustler_codegen 0.18.0 is already in cache
[INFO] extracting crate rustler_codegen 0.18.0 into work/ex/clippy-test-run/sources/stable/reg/rustler_codegen/0.18.0
[INFO] extracting crate rustler_codegen 0.18.0 into work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/reg/rustler_codegen/0.18.0
[INFO] validating manifest of rustler_codegen-0.18.0 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 rustler_codegen-0.18.0 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 rustler_codegen-0.18.0
[INFO] finished frobbing rustler_codegen-0.18.0
[INFO] frobbed toml for rustler_codegen-0.18.0 written to work/ex/clippy-test-run/sources/stable/reg/rustler_codegen/0.18.0/Cargo.toml
[INFO] started frobbing rustler_codegen-0.18.0
[INFO] finished frobbing rustler_codegen-0.18.0
[INFO] frobbed toml for rustler_codegen-0.18.0 written to work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/reg/rustler_codegen/0.18.0/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 rustler_codegen-0.18.0 against stable for clippy-test-run
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/clippy-test-run/worker-4/stable:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/clippy-test-run/sources/stable/reg/rustler_codegen/0.18.0:/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] 1e665fa1609454cfcb4e17671c4645dadebc3a5be57a78fe90f4fd23747de369
[INFO] running `"docker" "start" "-a" "1e665fa1609454cfcb4e17671c4645dadebc3a5be57a78fe90f4fd23747de369"`
[INFO] [stderr]     Checking syn v0.11.11
[INFO] [stderr]     Checking rustler_codegen v0.18.0 (/opt/crater/workdir)
[INFO] [stderr] warning: writing `&Vec<_>` instead of `&[_]` involves one more reference and cannot be used with non-Vec-based slices.
[INFO] [stderr]   --> src/tuple.rs:25:49
[INFO] [stderr]    |
[INFO] [stderr] 25 | pub fn gen_decoder(struct_name: &Ident, fields: &Vec<Field>, is_tuple: bool, has_lifetime: bool) -> Tokens {
[INFO] [stderr]    |                                                 ^^^^^^^^^^^ help: change this to: `&[Field]`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::ptr_arg)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#ptr_arg
[INFO] [stderr] 
[INFO] [stderr] warning: writing `&Vec<_>` instead of `&[_]` involves one more reference and cannot be used with non-Vec-based slices.
[INFO] [stderr]   --> src/tuple.rs:65:49
[INFO] [stderr]    |
[INFO] [stderr] 65 | pub fn gen_encoder(struct_name: &Ident, fields: &Vec<Field>, is_tuple: bool, has_lifetime: bool) -> Tokens {
[INFO] [stderr]    |                                                 ^^^^^^^^^^^ help: change this to: `&[Field]`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#ptr_arg
[INFO] [stderr] 
[INFO] [stderr] warning: `ref` on an entire `let` pattern is discouraged, take a reference with `&` instead
[INFO] [stderr]  --> src/record.rs:6:13
[INFO] [stderr]   |
[INFO] [stderr] 6 |         let ref attr_value = ast.attrs.iter()
[INFO] [stderr]   |             ^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(clippy::toplevel_ref_arg)] on by default
[INFO] [stderr]   = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#toplevel_ref_arg
[INFO] [stderr] help: try
[INFO] [stderr]   |
[INFO] [stderr] 6 |         let attr_value = &ast.attrs.iter()
[INFO] [stderr] 7 |             .find(|attr| attr.name() == "tag")
[INFO] [stderr] 8 |             .expect("NifRecord requires a 'tag' attribute").value;
[INFO] [stderr]   |
[INFO] [stderr] 
[INFO] [stderr] warning: writing `&Vec<_>` instead of `&[_]` involves one more reference and cannot be used with non-Vec-based slices.
[INFO] [stderr]   --> src/record.rs:42:49
[INFO] [stderr]    |
[INFO] [stderr] 42 | pub fn gen_decoder(struct_name: &Ident, fields: &Vec<Field>, atom_defs: &Tokens, has_lifetime: bool) -> Tokens {
[INFO] [stderr]    |                                                 ^^^^^^^^^^^ help: change this to: `&[Field]`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#ptr_arg
[INFO] [stderr] 
[INFO] [stderr] warning: writing `&Vec<_>` instead of `&[_]` involves one more reference and cannot be used with non-Vec-based slices.
[INFO] [stderr]   --> src/record.rs:86:49
[INFO] [stderr]    |
[INFO] [stderr] 86 | pub fn gen_encoder(struct_name: &Ident, fields: &Vec<Field>, atom_defs: &Tokens, has_lifetime: bool) -> Tokens {
[INFO] [stderr]    |                                                 ^^^^^^^^^^^ help: change this to: `&[Field]`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#ptr_arg
[INFO] [stderr] 
[INFO] [stderr] warning: writing `&Vec<_>` instead of `&[_]` involves one more reference and cannot be used with non-Vec-based slices.
[INFO] [stderr]   --> src/map.rs:41:49
[INFO] [stderr]    |
[INFO] [stderr] 41 | pub fn gen_decoder(struct_name: &Ident, fields: &Vec<Field>, atom_defs: &Tokens, has_lifetime: bool) -> Tokens {
[INFO] [stderr]    |                                                 ^^^^^^^^^^^ help: change this to: `&[Field]`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#ptr_arg
[INFO] [stderr] 
[INFO] [stderr] warning: writing `&Vec<_>` instead of `&[_]` involves one more reference and cannot be used with non-Vec-based slices.
[INFO] [stderr]   --> src/map.rs:71:49
[INFO] [stderr]    |
[INFO] [stderr] 71 | pub fn gen_encoder(struct_name: &Ident, fields: &Vec<Field>, atom_defs: &Tokens, has_lifetime: bool) -> Tokens {
[INFO] [stderr]    |                                                 ^^^^^^^^^^^ help: change this to: `&[Field]`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#ptr_arg
[INFO] [stderr] 
[INFO] [stderr] warning: `ref` on an entire `let` pattern is discouraged, take a reference with `&` instead
[INFO] [stderr]  --> src/ex_struct.rs:6:13
[INFO] [stderr]   |
[INFO] [stderr] 6 |         let ref attr_value = ast.attrs.iter()
[INFO] [stderr]   |             ^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#toplevel_ref_arg
[INFO] [stderr] help: try
[INFO] [stderr]   |
[INFO] [stderr] 6 |         let attr_value = &ast.attrs.iter()
[INFO] [stderr] 7 |             .find(|attr| attr.name() == "module")
[INFO] [stderr] 8 |             .expect("NifStruct requires a 'module' attribute")
[INFO] [stderr] 9 |             .value;
[INFO] [stderr]   |
[INFO] [stderr] 
[INFO] [stderr] warning: writing `&Vec<_>` instead of `&[_]` involves one more reference and cannot be used with non-Vec-based slices.
[INFO] [stderr]   --> src/tuple.rs:25:49
[INFO] [stderr]    |
[INFO] [stderr] 25 | pub fn gen_decoder(struct_name: &Ident, fields: &Vec<Field>, is_tuple: bool, has_lifetime: bool) -> Tokens {
[INFO] [stderr]    |                                                 ^^^^^^^^^^^ help: change this to: `&[Field]`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::ptr_arg)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#ptr_arg
[INFO] [stderr] 
[INFO] [stderr] warning: writing `&Vec<_>` instead of `&[_]` involves one more reference and cannot be used with non-Vec-based slices.
[INFO] [stderr]   --> src/tuple.rs:65:49
[INFO] [stderr]    |
[INFO] [stderr] 65 | pub fn gen_encoder(struct_name: &Ident, fields: &Vec<Field>, is_tuple: bool, has_lifetime: bool) -> Tokens {
[INFO] [stderr]    |                                                 ^^^^^^^^^^^ help: change this to: `&[Field]`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#ptr_arg
[INFO] [stderr] 
[INFO] [stderr] warning: `ref` on an entire `let` pattern is discouraged, take a reference with `&` instead
[INFO] [stderr]  --> src/record.rs:6:13
[INFO] [stderr]   |
[INFO] [stderr] 6 |         let ref attr_value = ast.attrs.iter()
[INFO] [stderr]   |             ^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(clippy::toplevel_ref_arg)] on by default
[INFO] [stderr]   = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#toplevel_ref_arg
[INFO] [stderr] help: try
[INFO] [stderr]   |
[INFO] [stderr] 6 |         let attr_value = &ast.attrs.iter()
[INFO] [stderr] 7 |             .find(|attr| attr.name() == "tag")
[INFO] [stderr] 8 |             .expect("NifRecord requires a 'tag' attribute").value;
[INFO] [stderr]   |
[INFO] [stderr] 
[INFO] [stderr] warning: writing `&Vec<_>` instead of `&[_]` involves one more reference and cannot be used with non-Vec-based slices.
[INFO] [stderr]   --> src/record.rs:42:49
[INFO] [stderr]    |
[INFO] [stderr] 42 | pub fn gen_decoder(struct_name: &Ident, fields: &Vec<Field>, atom_defs: &Tokens, has_lifetime: bool) -> Tokens {
[INFO] [stderr]    |                                                 ^^^^^^^^^^^ help: change this to: `&[Field]`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#ptr_arg
[INFO] [stderr] 
[INFO] [stderr] warning: writing `&Vec<_>` instead of `&[_]` involves one more reference and cannot be used with non-Vec-based slices.
[INFO] [stderr]   --> src/record.rs:86:49
[INFO] [stderr]    |
[INFO] [stderr] 86 | pub fn gen_encoder(struct_name: &Ident, fields: &Vec<Field>, atom_defs: &Tokens, has_lifetime: bool) -> Tokens {
[INFO] [stderr]    |                                                 ^^^^^^^^^^^ help: change this to: `&[Field]`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#ptr_arg
[INFO] [stderr] 
[INFO] [stderr] warning: writing `&Vec<_>` instead of `&[_]` involves one more reference and cannot be used with non-Vec-based slices.
[INFO] [stderr]   --> src/map.rs:41:49
[INFO] [stderr]    |
[INFO] [stderr] 41 | pub fn gen_decoder(struct_name: &Ident, fields: &Vec<Field>, atom_defs: &Tokens, has_lifetime: bool) -> Tokens {
[INFO] [stderr]    |                                                 ^^^^^^^^^^^ help: change this to: `&[Field]`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#ptr_arg
[INFO] [stderr] 
[INFO] [stderr] warning: writing `&Vec<_>` instead of `&[_]` involves one more reference and cannot be used with non-Vec-based slices.
[INFO] [stderr]   --> src/map.rs:71:49
[INFO] [stderr]    |
[INFO] [stderr] 71 | pub fn gen_encoder(struct_name: &Ident, fields: &Vec<Field>, atom_defs: &Tokens, has_lifetime: bool) -> Tokens {
[INFO] [stderr]    |                                                 ^^^^^^^^^^^ help: change this to: `&[Field]`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#ptr_arg
[INFO] [stderr] 
[INFO] [stderr] warning: `ref` on an entire `let` pattern is discouraged, take a reference with `&` instead
[INFO] [stderr]  --> src/ex_struct.rs:6:13
[INFO] [stderr]   |
[INFO] [stderr] 6 |         let ref attr_value = ast.attrs.iter()
[INFO] [stderr]   |             ^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#toplevel_ref_arg
[INFO] [stderr] help: try
[INFO] [stderr]   |
[INFO] [stderr] 6 |         let attr_value = &ast.attrs.iter()
[INFO] [stderr] 7 |             .find(|attr| attr.name() == "module")
[INFO] [stderr] 8 |             .expect("NifStruct requires a 'module' attribute")
[INFO] [stderr] 9 |             .value;
[INFO] [stderr]   |
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 5.06s
[INFO] running `"docker" "inspect" "1e665fa1609454cfcb4e17671c4645dadebc3a5be57a78fe90f4fd23747de369"`
[INFO] running `"docker" "rm" "-f" "1e665fa1609454cfcb4e17671c4645dadebc3a5be57a78fe90f4fd23747de369"`
[INFO] [stdout] 1e665fa1609454cfcb4e17671c4645dadebc3a5be57a78fe90f4fd23747de369