[INFO] crate gumdrop_derive 0.5.0 is already in cache
[INFO] extracting crate gumdrop_derive 0.5.0 into work/ex/clippy-test-run/sources/stable/reg/gumdrop_derive/0.5.0
[INFO] extracting crate gumdrop_derive 0.5.0 into work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/reg/gumdrop_derive/0.5.0
[INFO] validating manifest of gumdrop_derive-0.5.0 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 gumdrop_derive-0.5.0 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 gumdrop_derive-0.5.0
[INFO] finished frobbing gumdrop_derive-0.5.0
[INFO] frobbed toml for gumdrop_derive-0.5.0 written to work/ex/clippy-test-run/sources/stable/reg/gumdrop_derive/0.5.0/Cargo.toml
[INFO] started frobbing gumdrop_derive-0.5.0
[INFO] finished frobbing gumdrop_derive-0.5.0
[INFO] frobbed toml for gumdrop_derive-0.5.0 written to work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/reg/gumdrop_derive/0.5.0/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 gumdrop_derive-0.5.0 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/gumdrop_derive/0.5.0:/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] 22188bbee70518fcbd96ac24ef37e30101021cb3d60ec0df9d999498d7b3c769
[INFO] running `"docker" "start" "-a" "22188bbee70518fcbd96ac24ef37e30101021cb3d60ec0df9d999498d7b3c769"`
[INFO] [stderr]     Checking gumdrop_derive v0.5.0 (/opt/crater/workdir)
[INFO] [stderr] warning: redundant field names in struct initialization
[INFO] [stderr]    --> src/lib.rs:114:13
[INFO] [stderr]     |
[INFO] [stderr] 114 |             ty: ty,
[INFO] [stderr]     |             ^^^^^^ help: replace it with: `ty`
[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/lib.rs:329:13
[INFO] [stderr]     |
[INFO] [stderr] 329 |             action: action,
[INFO] [stderr]     |             ^^^^^^^^^^^^^^ help: replace it with: `action`
[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/lib.rs:114:13
[INFO] [stderr]     |
[INFO] [stderr] 114 |             ty: ty,
[INFO] [stderr]     |             ^^^^^^ help: replace it with: `ty`
[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/lib.rs:329:13
[INFO] [stderr]     |
[INFO] [stderr] 329 |             action: action,
[INFO] [stderr]     |             ^^^^^^^^^^^^^^ help: replace it with: `action`
[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 if statement can be collapsed
[INFO] [stderr]    --> src/lib.rs:795:9
[INFO] [stderr]     |
[INFO] [stderr] 795 | /         if self.parse.is_some() {
[INFO] [stderr] 796 | |             if self.count { panic!("`count` and `parse` are mutually exclusive"); }
[INFO] [stderr] 797 | |         }
[INFO] [stderr]     | |_________^ help: try: `if self.parse.is_some() && self.count { panic!("`count` and `parse` are mutually exclusive"); }`
[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] 
[INFO] [stderr] warning: returning the result of a let binding from a block. Consider returning the expression directly.
[INFO] [stderr]     --> src/lib.rs:1208:9
[INFO] [stderr]      |
[INFO] [stderr] 1208 |         res
[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/lib.rs:1189:19
[INFO] [stderr]      |
[INFO] [stderr] 1189 |           let res = match *self {
[INFO] [stderr]      |  ___________________^
[INFO] [stderr] 1190 | |             ParseFn::Default => quote!{
[INFO] [stderr] 1191 | |                 ::std::str::FromStr::from_str(_arg)
[INFO] [stderr] 1192 | |                     .map_err(|e| ::gumdrop::Error::failed_parse(_opt,
[INFO] [stderr] ...    |
[INFO] [stderr] 1205 | |             }
[INFO] [stderr] 1206 | |         };
[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: returning the result of a let binding from a block. Consider returning the expression directly.
[INFO] [stderr]     --> src/lib.rs:1233:9
[INFO] [stderr]      |
[INFO] [stderr] 1233 |         res
[INFO] [stderr]      |         ^^^
[INFO] [stderr]      |
[INFO] [stderr] note: this expression can be directly returned
[INFO] [stderr]     --> src/lib.rs:1212:19
[INFO] [stderr]      |
[INFO] [stderr] 1212 |           let res = match *self {
[INFO] [stderr]      |  ___________________^
[INFO] [stderr] 1213 | |             ParseFn::Default => quote!{
[INFO] [stderr] 1214 | |                 ::std::str::FromStr::from_str(#expr)
[INFO] [stderr] 1215 | |                     .map_err(|e| ::gumdrop::Error::failed_parse_default(
[INFO] [stderr] ...    |
[INFO] [stderr] 1230 | |             }
[INFO] [stderr] 1231 | |         };
[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: this if statement can be collapsed
[INFO] [stderr]    --> src/lib.rs:795:9
[INFO] [stderr]     |
[INFO] [stderr] 795 | /         if self.parse.is_some() {
[INFO] [stderr] 796 | |             if self.count { panic!("`count` and `parse` are mutually exclusive"); }
[INFO] [stderr] 797 | |         }
[INFO] [stderr]     | |_________^ help: try: `if self.parse.is_some() && self.count { panic!("`count` and `parse` are mutually exclusive"); }`
[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] 
[INFO] [stderr] warning: returning the result of a let binding from a block. Consider returning the expression directly.
[INFO] [stderr]     --> src/lib.rs:1208:9
[INFO] [stderr]      |
[INFO] [stderr] 1208 |         res
[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/lib.rs:1189:19
[INFO] [stderr]      |
[INFO] [stderr] 1189 |           let res = match *self {
[INFO] [stderr]      |  ___________________^
[INFO] [stderr] 1190 | |             ParseFn::Default => quote!{
[INFO] [stderr] 1191 | |                 ::std::str::FromStr::from_str(_arg)
[INFO] [stderr] 1192 | |                     .map_err(|e| ::gumdrop::Error::failed_parse(_opt,
[INFO] [stderr] ...    |
[INFO] [stderr] 1205 | |             }
[INFO] [stderr] 1206 | |         };
[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: returning the result of a let binding from a block. Consider returning the expression directly.
[INFO] [stderr]     --> src/lib.rs:1233:9
[INFO] [stderr]      |
[INFO] [stderr] 1233 |         res
[INFO] [stderr]      |         ^^^
[INFO] [stderr]      |
[INFO] [stderr] note: this expression can be directly returned
[INFO] [stderr]     --> src/lib.rs:1212:19
[INFO] [stderr]      |
[INFO] [stderr] 1212 |           let res = match *self {
[INFO] [stderr]      |  ___________________^
[INFO] [stderr] 1213 | |             ParseFn::Default => quote!{
[INFO] [stderr] 1214 | |                 ::std::str::FromStr::from_str(#expr)
[INFO] [stderr] 1215 | |                     .map_err(|e| ::gumdrop::Error::failed_parse_default(
[INFO] [stderr] ...    |
[INFO] [stderr] 1230 | |             }
[INFO] [stderr] 1231 | |         };
[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: the function has a cyclomatic complexity of 45
[INFO] [stderr]    --> src/lib.rs:210:1
[INFO] [stderr]     |
[INFO] [stderr] 210 | / fn derive_options_struct(ast: &DeriveInput, fields: &Fields) -> TokenStream {
[INFO] [stderr] 211 | |     let mut pattern = Vec::new();
[INFO] [stderr] 212 | |     let mut handle_opt = Vec::new();
[INFO] [stderr] 213 | |     let mut short_names = Vec::new();
[INFO] [stderr] ...   |
[INFO] [stderr] 591 | |     expr.to_string().parse().expect("parse quote!")
[INFO] [stderr] 592 | | }
[INFO] [stderr]     | |_^
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(clippy::cyclomatic_complexity)] on by default
[INFO] [stderr]     = help: you could split it up into multiple smaller functions
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#cyclomatic_complexity
[INFO] [stderr] 
[INFO] [stderr] warning: the function has a cyclomatic complexity of 29
[INFO] [stderr]    --> src/lib.rs:752:5
[INFO] [stderr]     |
[INFO] [stderr] 752 | /     fn check(&self) {
[INFO] [stderr] 753 | |         if self.command {
[INFO] [stderr] 754 | |             if self.free { panic!("`command` and `free` are mutually exclusive"); }
[INFO] [stderr] 755 | |             if self.default.is_some() { panic!("`command` and `default` are mutually exclusive"); }
[INFO] [stderr] ...   |
[INFO] [stderr] 797 | |         }
[INFO] [stderr] 798 | |     }
[INFO] [stderr]     | |_____^
[INFO] [stderr]     |
[INFO] [stderr]     = help: you could split it up into multiple smaller functions
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#cyclomatic_complexity
[INFO] [stderr] 
[INFO] [stderr] warning: you don't need to add `&` to all patterns
[INFO] [stderr]     --> src/lib.rs:1294:55
[INFO] [stderr]      |
[INFO] [stderr] 1294 |                       data.args.iter().filter_map(|arg| match arg {
[INFO] [stderr]      |  _______________________________________________________^
[INFO] [stderr] 1295 | |                         &GenericArgument::Type(ref ty) => Some(ty),
[INFO] [stderr] 1296 | |                         _ => None
[INFO] [stderr] 1297 | |                     }).next(),
[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] 1294 |                     data.args.iter().filter_map(|arg| match *arg {
[INFO] [stderr] 1295 |                         GenericArgument::Type(ref ty) => Some(ty),
[INFO] [stderr]      |
[INFO] [stderr] 
[INFO] [stderr] warning: the function has a cyclomatic complexity of 45
[INFO] [stderr]    --> src/lib.rs:210:1
[INFO] [stderr]     |
[INFO] [stderr] 210 | / fn derive_options_struct(ast: &DeriveInput, fields: &Fields) -> TokenStream {
[INFO] [stderr] 211 | |     let mut pattern = Vec::new();
[INFO] [stderr] 212 | |     let mut handle_opt = Vec::new();
[INFO] [stderr] 213 | |     let mut short_names = Vec::new();
[INFO] [stderr] ...   |
[INFO] [stderr] 591 | |     expr.to_string().parse().expect("parse quote!")
[INFO] [stderr] 592 | | }
[INFO] [stderr]     | |_^
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(clippy::cyclomatic_complexity)] on by default
[INFO] [stderr]     = help: you could split it up into multiple smaller functions
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#cyclomatic_complexity
[INFO] [stderr] 
[INFO] [stderr] warning: the function has a cyclomatic complexity of 29
[INFO] [stderr]    --> src/lib.rs:752:5
[INFO] [stderr]     |
[INFO] [stderr] 752 | /     fn check(&self) {
[INFO] [stderr] 753 | |         if self.command {
[INFO] [stderr] 754 | |             if self.free { panic!("`command` and `free` are mutually exclusive"); }
[INFO] [stderr] 755 | |             if self.default.is_some() { panic!("`command` and `default` are mutually exclusive"); }
[INFO] [stderr] ...   |
[INFO] [stderr] 797 | |         }
[INFO] [stderr] 798 | |     }
[INFO] [stderr]     | |_____^
[INFO] [stderr]     |
[INFO] [stderr]     = help: you could split it up into multiple smaller functions
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#cyclomatic_complexity
[INFO] [stderr] 
[INFO] [stderr] warning: you don't need to add `&` to all patterns
[INFO] [stderr]     --> src/lib.rs:1294:55
[INFO] [stderr]      |
[INFO] [stderr] 1294 |                       data.args.iter().filter_map(|arg| match arg {
[INFO] [stderr]      |  _______________________________________________________^
[INFO] [stderr] 1295 | |                         &GenericArgument::Type(ref ty) => Some(ty),
[INFO] [stderr] 1296 | |                         _ => None
[INFO] [stderr] 1297 | |                     }).next(),
[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] 1294 |                     data.args.iter().filter_map(|arg| match *arg {
[INFO] [stderr] 1295 |                         GenericArgument::Type(ref ty) => Some(ty),
[INFO] [stderr]      |
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 3.52s
[INFO] running `"docker" "inspect" "22188bbee70518fcbd96ac24ef37e30101021cb3d60ec0df9d999498d7b3c769"`
[INFO] running `"docker" "rm" "-f" "22188bbee70518fcbd96ac24ef37e30101021cb3d60ec0df9d999498d7b3c769"`
[INFO] [stdout] 22188bbee70518fcbd96ac24ef37e30101021cb3d60ec0df9d999498d7b3c769