[INFO] crate pwasm-abi-derive 0.2.0 is already in cache
[INFO] extracting crate pwasm-abi-derive 0.2.0 into work/ex/clippy-test-run/sources/stable/reg/pwasm-abi-derive/0.2.0
[INFO] extracting crate pwasm-abi-derive 0.2.0 into work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/reg/pwasm-abi-derive/0.2.0
[INFO] validating manifest of pwasm-abi-derive-0.2.0 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 pwasm-abi-derive-0.2.0 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 pwasm-abi-derive-0.2.0
[INFO] finished frobbing pwasm-abi-derive-0.2.0
[INFO] frobbed toml for pwasm-abi-derive-0.2.0 written to work/ex/clippy-test-run/sources/stable/reg/pwasm-abi-derive/0.2.0/Cargo.toml
[INFO] started frobbing pwasm-abi-derive-0.2.0
[INFO] finished frobbing pwasm-abi-derive-0.2.0
[INFO] frobbed toml for pwasm-abi-derive-0.2.0 written to work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/reg/pwasm-abi-derive/0.2.0/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 pwasm-abi-derive-0.2.0 against stable for clippy-test-run
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/clippy-test-run/worker-1/stable:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/clippy-test-run/sources/stable/reg/pwasm-abi-derive/0.2.0:/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] 4b3754f11e2fe200b8c5a7f7713e3ca45b944eb145d12f6d36d725531ee5106b
[INFO] running `"docker" "start" "-a" "4b3754f11e2fe200b8c5a7f7713e3ca45b944eb145d12f6d36d725531ee5106b"`
[INFO] [stderr]     Checking static_assertions v0.2.5
[INFO] [stderr]     Checking syn v0.15.26
[INFO] [stderr]     Checking fixed-hash v0.3.0
[INFO] [stderr]     Checking pwasm-abi-derive v0.2.0 (/opt/crater/workdir)
[INFO] [stderr] warning: redundant field names in struct initialization
[INFO] [stderr]    --> src/items.rs:172:3
[INFO] [stderr]     |
[INFO] [stderr] 172 |         arguments: arguments,
[INFO] [stderr]     |         ^^^^^^^^^^^^^^^^^^^^ help: replace it with: `arguments`
[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/items.rs:173:3
[INFO] [stderr]     |
[INFO] [stderr] 173 |         method_sig: method_sig,
[INFO] [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^ help: replace it with: `method_sig`
[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/items.rs:174:3
[INFO] [stderr]     |
[INFO] [stderr] 174 |         canonical: canonical,
[INFO] [stderr]     |         ^^^^^^^^^^^^^^^^^^^^ help: replace it with: `canonical`
[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/items.rs:175:3
[INFO] [stderr]     |
[INFO] [stderr] 175 |         hash: hash,
[INFO] [stderr]     |         ^^^^^^^^^^ help: replace it with: `hash`
[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/items.rs:176:3
[INFO] [stderr]     |
[INFO] [stderr] 176 |         return_types: return_types,
[INFO] [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^ help: replace it with: `return_types`
[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/items.rs:177:3
[INFO] [stderr]     |
[INFO] [stderr] 177 |         is_constant: is_constant,
[INFO] [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^ help: replace it with: `is_constant`
[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/items.rs:178:3
[INFO] [stderr]     |
[INFO] [stderr] 178 |         is_payable: is_payable,
[INFO] [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^ help: replace it with: `is_payable`
[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/items.rs:202:4
[INFO] [stderr]     |
[INFO] [stderr] 202 |             canonical: canonical,
[INFO] [stderr]     |             ^^^^^^^^^^^^^^^^^^^^ help: replace it with: `canonical`
[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/items.rs:203:4
[INFO] [stderr]     |
[INFO] [stderr] 203 |             indexed: indexed,
[INFO] [stderr]     |             ^^^^^^^^^^^^^^^^ help: replace it with: `indexed`
[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/items.rs:205:4
[INFO] [stderr]     |
[INFO] [stderr] 205 |             method_sig: method_sig,
[INFO] [stderr]     |             ^^^^^^^^^^^^^^^^^^^^^^ help: replace it with: `method_sig`
[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/utils.rs:35:3
[INFO] [stderr]    |
[INFO] [stderr] 35 |         method_sig: method_sig,
[INFO] [stderr]    |         ^^^^^^^^^^^^^^^^^^^^^^ help: replace it with: `method_sig`
[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/items.rs:172:3
[INFO] [stderr]     |
[INFO] [stderr] 172 |         arguments: arguments,
[INFO] [stderr]     |         ^^^^^^^^^^^^^^^^^^^^ help: replace it with: `arguments`
[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/items.rs:173:3
[INFO] [stderr]     |
[INFO] [stderr] 173 |         method_sig: method_sig,
[INFO] [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^ help: replace it with: `method_sig`
[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/items.rs:174:3
[INFO] [stderr]     |
[INFO] [stderr] 174 |         canonical: canonical,
[INFO] [stderr]     |         ^^^^^^^^^^^^^^^^^^^^ help: replace it with: `canonical`
[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/items.rs:175:3
[INFO] [stderr]     |
[INFO] [stderr] 175 |         hash: hash,
[INFO] [stderr]     |         ^^^^^^^^^^ help: replace it with: `hash`
[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/items.rs:176:3
[INFO] [stderr]     |
[INFO] [stderr] 176 |         return_types: return_types,
[INFO] [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^ help: replace it with: `return_types`
[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/items.rs:177:3
[INFO] [stderr]     |
[INFO] [stderr] 177 |         is_constant: is_constant,
[INFO] [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^ help: replace it with: `is_constant`
[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/items.rs:178:3
[INFO] [stderr]     |
[INFO] [stderr] 178 |         is_payable: is_payable,
[INFO] [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^ help: replace it with: `is_payable`
[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/items.rs:202:4
[INFO] [stderr]     |
[INFO] [stderr] 202 |             canonical: canonical,
[INFO] [stderr]     |             ^^^^^^^^^^^^^^^^^^^^ help: replace it with: `canonical`
[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/items.rs:203:4
[INFO] [stderr]     |
[INFO] [stderr] 203 |             indexed: indexed,
[INFO] [stderr]     |             ^^^^^^^^^^^^^^^^ help: replace it with: `indexed`
[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/items.rs:205:4
[INFO] [stderr]     |
[INFO] [stderr] 205 |             method_sig: method_sig,
[INFO] [stderr]     |             ^^^^^^^^^^^^^^^^^^^^^^ help: replace it with: `method_sig`
[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/utils.rs:35:3
[INFO] [stderr]    |
[INFO] [stderr] 35 |         method_sig: method_sig,
[INFO] [stderr]    |         ^^^^^^^^^^^^^^^^^^^^^^ help: replace it with: `method_sig`
[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: this creates an owned instance just for comparison
[INFO] [stderr]    --> src/items.rs:118:39
[INFO] [stderr]     |
[INFO] [stderr] 118 |                 item.name().map_or(false, |ident| ident.to_string() == "constructor")
[INFO] [stderr]     |                                                   ^^^^^^^^^^^^^^^^^ help: try: `*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] warning: this creates an owned instance just for comparison
[INFO] [stderr]    --> src/items.rs:221:6
[INFO] [stderr]     |
[INFO] [stderr] 221 |             !(method_trait_item.sig.ident.to_string() == "constructor" && constant),
[INFO] [stderr]     |               ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try: `*method_trait_item.sig.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] warning: casting u8 to u64 may become silently lossy if types change
[INFO] [stderr]    --> src/items.rs:261:40
[INFO] [stderr]     |
[INFO] [stderr] 261 |                                 syn::Lit::Int(syn::LitInt::new(*b as u64, syn::IntSuffix::U8, Span::call_site() ))
[INFO] [stderr]     |                                                                ^^^^^^^^^ help: try: `u64::from(*b)`
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(clippy::cast_lossless)] on by default
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#cast_lossless
[INFO] [stderr] 
[INFO] [stderr] warning: this creates an owned instance just for comparison
[INFO] [stderr]    --> src/utils.rs:135:16
[INFO] [stderr]     |
[INFO] [stderr] 135 |                 if "u8" == type_path.path.segments.last().unwrap().value().ident.to_string() {
[INFO] [stderr]     |                            ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try: `*type_path.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] warning: use of `unwrap_or` followed by a function call
[INFO] [stderr]   --> src/json.rs:86:53
[INFO] [stderr]    |
[INFO] [stderr] 86 |             path::PathBuf::from(env::var("CARGO_TARGET_DIR").unwrap_or(".".to_owned()));
[INFO] [stderr]    |                                                              ^^^^^^^^^^^^^^^^^^^^^^^^^ help: try this: `unwrap_or_else(|_| ".".to_owned())`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::or_fun_call)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#or_fun_call
[INFO] [stderr] 
[INFO] [stderr] warning: redundant closure found
[INFO] [stderr]   --> src/json.rs:89:39
[INFO] [stderr]    |
[INFO] [stderr] 89 |         fs::create_dir_all(&target).map_err(|err| JsonError::failed_to_create_dir(err))?;
[INFO] [stderr]    |                                             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove closure as shown: `JsonError::failed_to_create_dir`
[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] warning: redundant closure found
[INFO] [stderr]   --> src/json.rs:95:36
[INFO] [stderr]    |
[INFO] [stderr] 95 |         fs::File::create(target).map_err(|err| JsonError::failed_to_create_json_file(err))?;
[INFO] [stderr]    |                                          ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove closure as shown: `JsonError::failed_to_create_json_file`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#redundant_closure
[INFO] [stderr] 
[INFO] [stderr] warning: redundant closure found
[INFO] [stderr]    --> src/json.rs:100:12
[INFO] [stderr]     |
[INFO] [stderr] 100 |         .map_err(|err| JsonError::failed_to_write_json_abi_file(err))?;
[INFO] [stderr]     |                  ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove closure as shown: `JsonError::failed_to_write_json_abi_file`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#redundant_closure
[INFO] [stderr] 
[INFO] [stderr] warning: length comparison to zero
[INFO] [stderr]   --> src/lib.rs:46:6
[INFO] [stderr]    |
[INFO] [stderr] 46 |         if attr_args.len() == 0 || attr_args.len() > 2 {
[INFO] [stderr]    |            ^^^^^^^^^^^^^^^^^^^^ help: using `is_empty` is clearer and more explicit: `attr_args.is_empty()`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::len_zero)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#len_zero
[INFO] [stderr] 
[INFO] [stderr] warning: called `.get().unwrap()` on a Vec. Using `[]` is more clear and more concise
[INFO] [stderr]   --> src/lib.rs:50:59
[INFO] [stderr]    |
[INFO] [stderr] 50 |             if let syn::NestedMeta::Meta(syn::Meta::Word(ident)) = attr_args.get(0).unwrap() {
[INFO] [stderr]    |                                                                    ^^^^^^^^^^^^^^^^^^^^^^^^^ help: try this: `&attr_args[0]`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::get_unwrap)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#get_unwrap
[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/lib.rs:161:47
[INFO] [stderr]     |
[INFO] [stderr] 161 |     let mod_name = format!("pwasm_abi_impl_{}", &intf.name().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] 161 |     let mod_name = format!("pwasm_abi_impl_{}", &&(*intf.name()).clone());
[INFO] [stderr]     |                                                  ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] help: or try being explicit about what type to clone
[INFO] [stderr]     |
[INFO] [stderr] 161 |     let mod_name = format!("pwasm_abi_impl_{}", &&str::clone(intf.name()));
[INFO] [stderr]     |                                                  ^^^^^^^^^^^^^^^^^^^^^^^^
[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/lib.rs:193:47
[INFO] [stderr]     |
[INFO] [stderr] 193 |     let mod_name = format!("pwasm_abi_impl_{}", &intf.name().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] 193 |     let mod_name = format!("pwasm_abi_impl_{}", &&(*intf.name()).clone());
[INFO] [stderr]     |                                                  ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] help: or try being explicit about what type to clone
[INFO] [stderr]     |
[INFO] [stderr] 193 |     let mod_name = format!("pwasm_abi_impl_{}", &&str::clone(intf.name()));
[INFO] [stderr]     |                                                  ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: casting u32 to u64 may become silently lossy if types change
[INFO] [stderr]    --> src/lib.rs:235:23
[INFO] [stderr]     |
[INFO] [stderr] 235 |                     syn::LitInt::new(signature.hash as u64, syn::IntSuffix::U32, Span::call_site()));
[INFO] [stderr]     |                                      ^^^^^^^^^^^^^^^^^^^^^ help: try: `u64::from(signature.hash)`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#cast_lossless
[INFO] [stderr] 
[INFO] [stderr] warning: casting u32 to u64 may become silently lossy if types change
[INFO] [stderr]    --> src/lib.rs:368:23
[INFO] [stderr]     |
[INFO] [stderr] 368 |                     syn::LitInt::new(signature.hash as u64, syn::IntSuffix::U32, Span::call_site()));
[INFO] [stderr]     |                                      ^^^^^^^^^^^^^^^^^^^^^ help: try: `u64::from(signature.hash)`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#cast_lossless
[INFO] [stderr] 
[INFO] [stderr] warning: this creates an owned instance just for comparison
[INFO] [stderr]    --> src/items.rs:118:39
[INFO] [stderr]     |
[INFO] [stderr] 118 |                 item.name().map_or(false, |ident| ident.to_string() == "constructor")
[INFO] [stderr]     |                                                   ^^^^^^^^^^^^^^^^^ help: try: `*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: aborting due to 2 previous errors
[INFO] [stderr] 
[INFO] [stderr] warning: this creates an owned instance just for comparison
[INFO] [stderr]    --> src/items.rs:221:6
[INFO] [stderr]     |
[INFO] [stderr] 221 |             !(method_trait_item.sig.ident.to_string() == "constructor" && constant),
[INFO] [stderr]     |               ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try: `*method_trait_item.sig.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] warning: casting u8 to u64 may become silently lossy if types change
[INFO] [stderr]    --> src/items.rs:261:40
[INFO] [stderr]     |
[INFO] [stderr] 261 |                                 syn::Lit::Int(syn::LitInt::new(*b as u64, syn::IntSuffix::U8, Span::call_site() ))
[INFO] [stderr]     |                                                                ^^^^^^^^^ help: try: `u64::from(*b)`
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(clippy::cast_lossless)] on by default
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#cast_lossless
[INFO] [stderr] 
[INFO] [stderr] error: Could not compile `pwasm-abi-derive`.
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] warning: this creates an owned instance just for comparison
[INFO] [stderr]    --> src/utils.rs:135:16
[INFO] [stderr]     |
[INFO] [stderr] 135 |                 if "u8" == type_path.path.segments.last().unwrap().value().ident.to_string() {
[INFO] [stderr]     |                            ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try: `*type_path.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] warning: use of `unwrap_or` followed by a function call
[INFO] [stderr]   --> src/json.rs:86:53
[INFO] [stderr]    |
[INFO] [stderr] 86 |             path::PathBuf::from(env::var("CARGO_TARGET_DIR").unwrap_or(".".to_owned()));
[INFO] [stderr]    |                                                              ^^^^^^^^^^^^^^^^^^^^^^^^^ help: try this: `unwrap_or_else(|_| ".".to_owned())`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::or_fun_call)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#or_fun_call
[INFO] [stderr] 
[INFO] [stderr] warning: redundant closure found
[INFO] [stderr]   --> src/json.rs:89:39
[INFO] [stderr]    |
[INFO] [stderr] 89 |         fs::create_dir_all(&target).map_err(|err| JsonError::failed_to_create_dir(err))?;
[INFO] [stderr]    |                                             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove closure as shown: `JsonError::failed_to_create_dir`
[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] warning: redundant closure found
[INFO] [stderr]   --> src/json.rs:95:36
[INFO] [stderr]    |
[INFO] [stderr] 95 |         fs::File::create(target).map_err(|err| JsonError::failed_to_create_json_file(err))?;
[INFO] [stderr]    |                                          ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove closure as shown: `JsonError::failed_to_create_json_file`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#redundant_closure
[INFO] [stderr] 
[INFO] [stderr] warning: redundant closure found
[INFO] [stderr]    --> src/json.rs:100:12
[INFO] [stderr]     |
[INFO] [stderr] 100 |         .map_err(|err| JsonError::failed_to_write_json_abi_file(err))?;
[INFO] [stderr]     |                  ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove closure as shown: `JsonError::failed_to_write_json_abi_file`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#redundant_closure
[INFO] [stderr] 
[INFO] [stderr] warning: length comparison to zero
[INFO] [stderr]   --> src/lib.rs:46:6
[INFO] [stderr]    |
[INFO] [stderr] 46 |         if attr_args.len() == 0 || attr_args.len() > 2 {
[INFO] [stderr]    |            ^^^^^^^^^^^^^^^^^^^^ help: using `is_empty` is clearer and more explicit: `attr_args.is_empty()`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::len_zero)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#len_zero
[INFO] [stderr] 
[INFO] [stderr] warning: called `.get().unwrap()` on a Vec. Using `[]` is more clear and more concise
[INFO] [stderr]   --> src/lib.rs:50:59
[INFO] [stderr]    |
[INFO] [stderr] 50 |             if let syn::NestedMeta::Meta(syn::Meta::Word(ident)) = attr_args.get(0).unwrap() {
[INFO] [stderr]    |                                                                    ^^^^^^^^^^^^^^^^^^^^^^^^^ help: try this: `&attr_args[0]`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::get_unwrap)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#get_unwrap
[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/lib.rs:161:47
[INFO] [stderr]     |
[INFO] [stderr] 161 |     let mod_name = format!("pwasm_abi_impl_{}", &intf.name().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] 161 |     let mod_name = format!("pwasm_abi_impl_{}", &&(*intf.name()).clone());
[INFO] [stderr]     |                                                  ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] help: or try being explicit about what type to clone
[INFO] [stderr]     |
[INFO] [stderr] 161 |     let mod_name = format!("pwasm_abi_impl_{}", &&str::clone(intf.name()));
[INFO] [stderr]     |                                                  ^^^^^^^^^^^^^^^^^^^^^^^^
[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/lib.rs:193:47
[INFO] [stderr]     |
[INFO] [stderr] 193 |     let mod_name = format!("pwasm_abi_impl_{}", &intf.name().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] 193 |     let mod_name = format!("pwasm_abi_impl_{}", &&(*intf.name()).clone());
[INFO] [stderr]     |                                                  ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] help: or try being explicit about what type to clone
[INFO] [stderr]     |
[INFO] [stderr] 193 |     let mod_name = format!("pwasm_abi_impl_{}", &&str::clone(intf.name()));
[INFO] [stderr]     |                                                  ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: casting u32 to u64 may become silently lossy if types change
[INFO] [stderr]    --> src/lib.rs:235:23
[INFO] [stderr]     |
[INFO] [stderr] 235 |                     syn::LitInt::new(signature.hash as u64, syn::IntSuffix::U32, Span::call_site()));
[INFO] [stderr]     |                                      ^^^^^^^^^^^^^^^^^^^^^ help: try: `u64::from(signature.hash)`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#cast_lossless
[INFO] [stderr] 
[INFO] [stderr] warning: casting u32 to u64 may become silently lossy if types change
[INFO] [stderr]    --> src/lib.rs:368:23
[INFO] [stderr]     |
[INFO] [stderr] 368 |                     syn::LitInt::new(signature.hash as u64, syn::IntSuffix::U32, Span::call_site()));
[INFO] [stderr]     |                                      ^^^^^^^^^^^^^^^^^^^^^ help: try: `u64::from(signature.hash)`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#cast_lossless
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to 2 previous errors
[INFO] [stderr] 
[INFO] [stderr] error: Could not compile `pwasm-abi-derive`.
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `"docker" "inspect" "4b3754f11e2fe200b8c5a7f7713e3ca45b944eb145d12f6d36d725531ee5106b"`
[INFO] running `"docker" "rm" "-f" "4b3754f11e2fe200b8c5a7f7713e3ca45b944eb145d12f6d36d725531ee5106b"`
[INFO] [stdout] 4b3754f11e2fe200b8c5a7f7713e3ca45b944eb145d12f6d36d725531ee5106b