[INFO] crate failure_derive 0.1.3 is already in cache
[INFO] extracting crate failure_derive 0.1.3 into work/ex/clippy-test-run/sources/stable/reg/failure_derive/0.1.3
[INFO] extracting crate failure_derive 0.1.3 into work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/reg/failure_derive/0.1.3
[INFO] validating manifest of failure_derive-0.1.3 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 failure_derive-0.1.3 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 failure_derive-0.1.3
[INFO] finished frobbing failure_derive-0.1.3
[INFO] frobbed toml for failure_derive-0.1.3 written to work/ex/clippy-test-run/sources/stable/reg/failure_derive/0.1.3/Cargo.toml
[INFO] started frobbing failure_derive-0.1.3
[INFO] finished frobbing failure_derive-0.1.3
[INFO] frobbed toml for failure_derive-0.1.3 written to work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/reg/failure_derive/0.1.3/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 failure_derive-0.1.3 against stable for clippy-test-run
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/clippy-test-run/worker-7/stable:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/clippy-test-run/sources/stable/reg/failure_derive/0.1.3:/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] d4c21900371d71bca12cafd60a4e8bf070943429877472db4f5bbe3dcf102782
[INFO] running `"docker" "start" "-a" "d4c21900371d71bca12cafd60a4e8bf070943429877472db4f5bbe3dcf102782"`
[INFO] [stderr]    Compiling failure_derive v0.1.3 (/opt/crater/workdir)
[INFO] [stderr]     Checking synstructure v0.10.1
[INFO] [stderr] warning: this `else { if .. }` block can be collapsed
[INFO] [stderr]    --> src/lib.rs:146:24
[INFO] [stderr]     |
[INFO] [stderr] 146 |                   } else {
[INFO] [stderr]     |  ________________________^
[INFO] [stderr] 147 | |                     if let syn::Meta::List(list) = meta {
[INFO] [stderr] 148 | |                         error_msg = Some(list);
[INFO] [stderr] 149 | |                     } else {
[INFO] [stderr] 150 | |                         panic!("fail attribute must take a list in parentheses")
[INFO] [stderr] 151 | |                     }
[INFO] [stderr] 152 | |                 }
[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] 146 |                 } else if let syn::Meta::List(list) = meta {
[INFO] [stderr] 147 |     error_msg = Some(list);
[INFO] [stderr] 148 | } else {
[INFO] [stderr] 149 |     panic!("fail attribute must take a list in parentheses")
[INFO] [stderr] 150 | }
[INFO] [stderr]     |
[INFO] [stderr] 
[INFO] [stderr] warning: identical conversion
[INFO] [stderr]   --> src/lib.rs:65:5
[INFO] [stderr]    |
[INFO] [stderr] 65 | /     (quote! {
[INFO] [stderr] 66 | |         #fail
[INFO] [stderr] 67 | |         #display
[INFO] [stderr] 68 | |     }).into()
[INFO] [stderr]    | |_____________^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::identity_conversion)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#identity_conversion
[INFO] [stderr] help: consider removing `.into()`
[INFO] [stderr]    |
[INFO] [stderr] 65 |     quote! {
[INFO] [stderr] 66 |         #fail
[INFO] [stderr] 67 |         #display
[INFO] [stderr] 68 |     }
[INFO] [stderr]    |
[INFO] [stderr] 
[INFO] [stderr] warning: single-character string constant used as pattern
[INFO] [stderr]   --> src/lib.rs:99:37
[INFO] [stderr]    |
[INFO] [stderr] 99 |                 if id_s.starts_with("_") {
[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 argument is passed by reference, but would be more efficient if passed by value
[INFO] [stderr]    --> src/lib.rs:159:21
[INFO] [stderr]     |
[INFO] [stderr] 159 | fn is_backtrace(bi: &&synstructure::BindingInfo) -> bool {
[INFO] [stderr]     |                     ^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: consider passing by value instead: `&synstructure::BindingInfo`
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(clippy::trivially_copy_pass_by_ref)] on by default
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#trivially_copy_pass_by_ref
[INFO] [stderr] 
[INFO] [stderr] warning: this argument is passed by reference, but would be more efficient if passed by value
[INFO] [stderr]    --> src/lib.rs:173:17
[INFO] [stderr]     |
[INFO] [stderr] 173 | fn is_cause(bi: &&synstructure::BindingInfo) -> bool {
[INFO] [stderr]     |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: consider passing by value instead: `&synstructure::BindingInfo`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#trivially_copy_pass_by_ref
[INFO] [stderr] 
[INFO] [stderr] warning: you don't need to add `&` to all patterns
[INFO] [stderr]    --> src/lib.rs:186:25
[INFO] [stderr]     |
[INFO] [stderr] 186 | /                         if let &&syn::NestedMeta::Meta(syn::Meta::Word(ref word)) = pair.value() {
[INFO] [stderr] 187 | |                             if word == "cause" {
[INFO] [stderr] 188 | |                                 if found_cause {
[INFO] [stderr] 189 | |                                     panic!("Cannot have two `cause` attributes");
[INFO] [stderr] ...   |
[INFO] [stderr] 192 | |                             }
[INFO] [stderr] 193 | |                         }
[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] 186 |                         if let &syn::NestedMeta::Meta(syn::Meta::Word(ref word)) = *pair.value() {
[INFO] [stderr]     |                                ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^   ^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: this `else { if .. }` block can be collapsed
[INFO] [stderr]    --> src/lib.rs:146:24
[INFO] [stderr]     |
[INFO] [stderr] 146 |                   } else {
[INFO] [stderr]     |  ________________________^
[INFO] [stderr] 147 | |                     if let syn::Meta::List(list) = meta {
[INFO] [stderr] 148 | |                         error_msg = Some(list);
[INFO] [stderr] 149 | |                     } else {
[INFO] [stderr] 150 | |                         panic!("fail attribute must take a list in parentheses")
[INFO] [stderr] 151 | |                     }
[INFO] [stderr] 152 | |                 }
[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] 146 |                 } else if let syn::Meta::List(list) = meta {
[INFO] [stderr] 147 |     error_msg = Some(list);
[INFO] [stderr] 148 | } else {
[INFO] [stderr] 149 |     panic!("fail attribute must take a list in parentheses")
[INFO] [stderr] 150 | }
[INFO] [stderr]     |
[INFO] [stderr] 
[INFO] [stderr] warning: identical conversion
[INFO] [stderr]   --> src/lib.rs:65:5
[INFO] [stderr]    |
[INFO] [stderr] 65 | /     (quote! {
[INFO] [stderr] 66 | |         #fail
[INFO] [stderr] 67 | |         #display
[INFO] [stderr] 68 | |     }).into()
[INFO] [stderr]    | |_____________^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::identity_conversion)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#identity_conversion
[INFO] [stderr] help: consider removing `.into()`
[INFO] [stderr]    |
[INFO] [stderr] 65 |     quote! {
[INFO] [stderr] 66 |         #fail
[INFO] [stderr] 67 |         #display
[INFO] [stderr] 68 |     }
[INFO] [stderr]    |
[INFO] [stderr] 
[INFO] [stderr] warning: single-character string constant used as pattern
[INFO] [stderr]   --> src/lib.rs:99:37
[INFO] [stderr]    |
[INFO] [stderr] 99 |                 if id_s.starts_with("_") {
[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 argument is passed by reference, but would be more efficient if passed by value
[INFO] [stderr]    --> src/lib.rs:159:21
[INFO] [stderr]     |
[INFO] [stderr] 159 | fn is_backtrace(bi: &&synstructure::BindingInfo) -> bool {
[INFO] [stderr]     |                     ^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: consider passing by value instead: `&synstructure::BindingInfo`
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(clippy::trivially_copy_pass_by_ref)] on by default
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#trivially_copy_pass_by_ref
[INFO] [stderr] 
[INFO] [stderr] warning: this argument is passed by reference, but would be more efficient if passed by value
[INFO] [stderr]    --> src/lib.rs:173:17
[INFO] [stderr]     |
[INFO] [stderr] 173 | fn is_cause(bi: &&synstructure::BindingInfo) -> bool {
[INFO] [stderr]     |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: consider passing by value instead: `&synstructure::BindingInfo`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#trivially_copy_pass_by_ref
[INFO] [stderr] 
[INFO] [stderr] warning: you don't need to add `&` to all patterns
[INFO] [stderr]    --> src/lib.rs:186:25
[INFO] [stderr]     |
[INFO] [stderr] 186 | /                         if let &&syn::NestedMeta::Meta(syn::Meta::Word(ref word)) = pair.value() {
[INFO] [stderr] 187 | |                             if word == "cause" {
[INFO] [stderr] 188 | |                                 if found_cause {
[INFO] [stderr] 189 | |                                     panic!("Cannot have two `cause` attributes");
[INFO] [stderr] ...   |
[INFO] [stderr] 192 | |                             }
[INFO] [stderr] 193 | |                         }
[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] 186 |                         if let &syn::NestedMeta::Meta(syn::Meta::Word(ref word)) = *pair.value() {
[INFO] [stderr]     |                                ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^   ^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused `#[macro_use]` import
[INFO] [stderr]  --> tests/no_derive_display.rs:2:1
[INFO] [stderr]   |
[INFO] [stderr] 2 | #[macro_use]
[INFO] [stderr]   | ^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(unused_imports)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused `#[macro_use]` import
[INFO] [stderr]  --> tests/wraps.rs:2:1
[INFO] [stderr]   |
[INFO] [stderr] 2 | #[macro_use]
[INFO] [stderr]   | ^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(unused_imports)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused `#[macro_use]` import
[INFO] [stderr]  --> tests/custom_type_bounds.rs:1:1
[INFO] [stderr]   |
[INFO] [stderr] 1 | #[macro_use]
[INFO] [stderr]   | ^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(unused_imports)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused `#[macro_use]` import
[INFO] [stderr]  --> tests/backtrace.rs:2:1
[INFO] [stderr]   |
[INFO] [stderr] 2 | #[macro_use]
[INFO] [stderr]   | ^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(unused_imports)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: All variants have the same postfix: `Variant`
[INFO] [stderr]   --> tests/backtrace.rs:38:1
[INFO] [stderr]    |
[INFO] [stderr] 38 | / enum BacktraceEnumError {
[INFO] [stderr] 39 | |     #[fail(display = "Error code: {}", code)]
[INFO] [stderr] 40 | |     StructVariant { code: i32, backtrace: Backtrace },
[INFO] [stderr] 41 | |     #[fail(display = "Error: {}", _0)]
[INFO] [stderr] ...  |
[INFO] [stderr] 44 | |     UnitVariant,
[INFO] [stderr] 45 | | }
[INFO] [stderr]    | |_^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::enum_variant_names)] on by default
[INFO] [stderr]    = help: remove the postfixes and use full paths to the variants instead of glob imports
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#enum_variant_names
[INFO] [stderr] 
[INFO] [stderr] warning: All variants have the same postfix: `Variant`
[INFO] [stderr]   --> tests/tests.rs:38:1
[INFO] [stderr]    |
[INFO] [stderr] 38 | / enum EnumError {
[INFO] [stderr] 39 | |     #[fail(display = "Error code: {}", code)]
[INFO] [stderr] 40 | |     StructVariant { code: i32 },
[INFO] [stderr] 41 | |     #[fail(display = "Error: {}", _0)]
[INFO] [stderr] ...  |
[INFO] [stderr] 44 | |     UnitVariant,
[INFO] [stderr] 45 | | }
[INFO] [stderr]    | |_^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::enum_variant_names)] on by default
[INFO] [stderr]    = help: remove the postfixes and use full paths to the variants instead of glob imports
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#enum_variant_names
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 6.78s
[INFO] running `"docker" "inspect" "d4c21900371d71bca12cafd60a4e8bf070943429877472db4f5bbe3dcf102782"`
[INFO] running `"docker" "rm" "-f" "d4c21900371d71bca12cafd60a4e8bf070943429877472db4f5bbe3dcf102782"`
[INFO] [stdout] d4c21900371d71bca12cafd60a4e8bf070943429877472db4f5bbe3dcf102782