[INFO] crate relexer-derive 0.1.0 is already in cache
[INFO] extracting crate relexer-derive 0.1.0 into work/ex/clippy-test-run/sources/stable/reg/relexer-derive/0.1.0
[INFO] extracting crate relexer-derive 0.1.0 into work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/reg/relexer-derive/0.1.0
[INFO] validating manifest of relexer-derive-0.1.0 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 relexer-derive-0.1.0 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 relexer-derive-0.1.0
[INFO] finished frobbing relexer-derive-0.1.0
[INFO] frobbed toml for relexer-derive-0.1.0 written to work/ex/clippy-test-run/sources/stable/reg/relexer-derive/0.1.0/Cargo.toml
[INFO] started frobbing relexer-derive-0.1.0
[INFO] finished frobbing relexer-derive-0.1.0
[INFO] frobbed toml for relexer-derive-0.1.0 written to work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/reg/relexer-derive/0.1.0/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 relexer-derive-0.1.0 against stable for clippy-test-run
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/clippy-test-run/worker-5/stable:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/clippy-test-run/sources/stable/reg/relexer-derive/0.1.0:/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] dfb2bb4a12817f1de8da617e1dbf172fe4f300f522c00e54bb460cc35b4309df
[INFO] running `"docker" "start" "-a" "dfb2bb4a12817f1de8da617e1dbf172fe4f300f522c00e54bb460cc35b4309df"`
[INFO] [stderr]     Checking syn v0.11.11
[INFO] [stderr]     Checking synstructure v0.6.1
[INFO] [stderr]     Checking relexer-derive v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: unneeded return statement
[INFO] [stderr]   --> src/lib.rs:89:5
[INFO] [stderr]    |
[INFO] [stderr] 89 |     return false;
[INFO] [stderr]    |     ^^^^^^^^^^^^^ help: remove `return` as shown: `false`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::needless_return)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_return
[INFO] [stderr] 
[INFO] [stderr] warning: unneeded return statement
[INFO] [stderr]   --> src/lib.rs:89:5
[INFO] [stderr]    |
[INFO] [stderr] 89 |     return false;
[INFO] [stderr]    |     ^^^^^^^^^^^^^ help: remove `return` as shown: `false`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::needless_return)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_return
[INFO] [stderr] 
[INFO] [stderr] warning: you seem to be trying to use match for destructuring a single pattern. Consider using `if let`
[INFO] [stderr]   --> src/lib.rs:15:5
[INFO] [stderr]    |
[INFO] [stderr] 15 | /     match s.ast().body {
[INFO] [stderr] 16 | |         syn::Body::Struct(_) => panic!("#[derive(Token)] only works on Enums"),
[INFO] [stderr] 17 | |         _ => {}
[INFO] [stderr] 18 | |     };
[INFO] [stderr]    | |_____^ help: try this: `if let syn::Body::Struct(_) = s.ast().body { panic!("#[derive(Token)] only works on Enums") }`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::single_match)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#single_match
[INFO] [stderr] 
[INFO] [stderr] warning: you seem to be trying to use match for destructuring a single pattern. Consider using `if let`
[INFO] [stderr]   --> src/lib.rs:80:9
[INFO] [stderr]    |
[INFO] [stderr] 80 | /         match a.value {
[INFO] [stderr] 81 | |             syn::MetaItem::Word(ref id) => {
[INFO] [stderr] 82 | |                 if id == "skip" {
[INFO] [stderr] 83 | |                     return true
[INFO] [stderr] ...  |
[INFO] [stderr] 86 | |             _ => {}
[INFO] [stderr] 87 | |         }
[INFO] [stderr]    | |_________^
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#single_match
[INFO] [stderr] help: try this
[INFO] [stderr]    |
[INFO] [stderr] 80 |         if let syn::MetaItem::Word(ref id) = a.value {
[INFO] [stderr] 81 |     if id == "skip" {
[INFO] [stderr] 82 |         return true
[INFO] [stderr] 83 |     }
[INFO] [stderr] 84 | }
[INFO] [stderr]    |
[INFO] [stderr] 
[INFO] [stderr] warning: you seem to be trying to use match for destructuring a single pattern. Consider using `if let`
[INFO] [stderr]    --> src/lib.rs:95:9
[INFO] [stderr]     |
[INFO] [stderr] 95  | /         match a.value {
[INFO] [stderr] 96  | |             syn::MetaItem::NameValue(ref id, ref lit) => {
[INFO] [stderr] 97  | |                 match *lit {
[INFO] [stderr] 98  | |                     syn::Lit::Str(ref l, _) => {
[INFO] [stderr] ...   |
[INFO] [stderr] 106 | |             _ => {}
[INFO] [stderr] 107 | |         }
[INFO] [stderr]     | |_________^
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#single_match
[INFO] [stderr] help: try this
[INFO] [stderr]     |
[INFO] [stderr] 95  |         if let syn::MetaItem::NameValue(ref id, ref lit) = a.value {
[INFO] [stderr] 96  |     match *lit {
[INFO] [stderr] 97  |         syn::Lit::Str(ref l, _) => {
[INFO] [stderr] 98  |             if id == "expr" {
[INFO] [stderr] 99  |                 expr = Some(l.as_str());
[INFO] [stderr] 100 |             }
[INFO] [stderr]   ...
[INFO] [stderr] 
[INFO] [stderr] warning: you seem to be trying to use match for destructuring a single pattern. Consider using `if let`
[INFO] [stderr]    --> src/lib.rs:97:17
[INFO] [stderr]     |
[INFO] [stderr] 97  | /                 match *lit {
[INFO] [stderr] 98  | |                     syn::Lit::Str(ref l, _) => {
[INFO] [stderr] 99  | |                         if id == "expr" {
[INFO] [stderr] 100 | |                             expr = Some(l.as_str());
[INFO] [stderr] ...   |
[INFO] [stderr] 103 | |                     _ => {}
[INFO] [stderr] 104 | |                 }
[INFO] [stderr]     | |_________________^
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#single_match
[INFO] [stderr] help: try this
[INFO] [stderr]     |
[INFO] [stderr] 97  |                 if let syn::Lit::Str(ref l, _) = *lit {
[INFO] [stderr] 98  |     if id == "expr" {
[INFO] [stderr] 99  |         expr = Some(l.as_str());
[INFO] [stderr] 100 |     }
[INFO] [stderr] 101 | }
[INFO] [stderr]     |
[INFO] [stderr] 
[INFO] [stderr] warning: use of `expect` followed by a function call
[INFO] [stderr]    --> src/lib.rs:109:18
[INFO] [stderr]     |
[INFO] [stderr] 109 |     let e = expr.expect(&format!("#[derive(Token)] requires all variants to have the `expr` attribute: `{}`", v.ident.as_ref()));
[INFO] [stderr]     |                  ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try this: `unwrap_or_else(|| panic!("#[derive(Token)] requires all variants to have the `expr` attribute: `{}`", v.ident.as_ref()))`
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(clippy::expect_fun_call)] on by default
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#expect_fun_call
[INFO] [stderr] 
[INFO] [stderr] warning: use of `expect` followed by a function call
[INFO] [stderr]    --> src/lib.rs:110:38
[INFO] [stderr]     |
[INFO] [stderr] 110 |     let regex = regex::Regex::new(e).expect(&format!("#[derive(Token)] Invalid regex for variant `{}`",v.ident.as_ref()));
[INFO] [stderr]     |                                      ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try this: `unwrap_or_else(|_| panic!("#[derive(Token)] Invalid regex for variant `{}`", v.ident.as_ref()))`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#expect_fun_call
[INFO] [stderr] 
[INFO] [stderr] warning: you seem to be trying to use match for destructuring a single pattern. Consider using `if let`
[INFO] [stderr]   --> src/lib.rs:15:5
[INFO] [stderr]    |
[INFO] [stderr] 15 | /     match s.ast().body {
[INFO] [stderr] 16 | |         syn::Body::Struct(_) => panic!("#[derive(Token)] only works on Enums"),
[INFO] [stderr] 17 | |         _ => {}
[INFO] [stderr] 18 | |     };
[INFO] [stderr]    | |_____^ help: try this: `if let syn::Body::Struct(_) = s.ast().body { panic!("#[derive(Token)] only works on Enums") }`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::single_match)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#single_match
[INFO] [stderr] 
[INFO] [stderr] warning: you seem to be trying to use match for destructuring a single pattern. Consider using `if let`
[INFO] [stderr]   --> src/lib.rs:80:9
[INFO] [stderr]    |
[INFO] [stderr] 80 | /         match a.value {
[INFO] [stderr] 81 | |             syn::MetaItem::Word(ref id) => {
[INFO] [stderr] 82 | |                 if id == "skip" {
[INFO] [stderr] 83 | |                     return true
[INFO] [stderr] ...  |
[INFO] [stderr] 86 | |             _ => {}
[INFO] [stderr] 87 | |         }
[INFO] [stderr]    | |_________^
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#single_match
[INFO] [stderr] help: try this
[INFO] [stderr]    |
[INFO] [stderr] 80 |         if let syn::MetaItem::Word(ref id) = a.value {
[INFO] [stderr] 81 |     if id == "skip" {
[INFO] [stderr] 82 |         return true
[INFO] [stderr] 83 |     }
[INFO] [stderr] 84 | }
[INFO] [stderr]    |
[INFO] [stderr] 
[INFO] [stderr] warning: you seem to be trying to use match for destructuring a single pattern. Consider using `if let`
[INFO] [stderr]    --> src/lib.rs:95:9
[INFO] [stderr]     |
[INFO] [stderr] 95  | /         match a.value {
[INFO] [stderr] 96  | |             syn::MetaItem::NameValue(ref id, ref lit) => {
[INFO] [stderr] 97  | |                 match *lit {
[INFO] [stderr] 98  | |                     syn::Lit::Str(ref l, _) => {
[INFO] [stderr] ...   |
[INFO] [stderr] 106 | |             _ => {}
[INFO] [stderr] 107 | |         }
[INFO] [stderr]     | |_________^
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#single_match
[INFO] [stderr] help: try this
[INFO] [stderr]     |
[INFO] [stderr] 95  |         if let syn::MetaItem::NameValue(ref id, ref lit) = a.value {
[INFO] [stderr] 96  |     match *lit {
[INFO] [stderr] 97  |         syn::Lit::Str(ref l, _) => {
[INFO] [stderr] 98  |             if id == "expr" {
[INFO] [stderr] 99  |                 expr = Some(l.as_str());
[INFO] [stderr] 100 |             }
[INFO] [stderr]   ...
[INFO] [stderr] 
[INFO] [stderr] warning: you seem to be trying to use match for destructuring a single pattern. Consider using `if let`
[INFO] [stderr]    --> src/lib.rs:97:17
[INFO] [stderr]     |
[INFO] [stderr] 97  | /                 match *lit {
[INFO] [stderr] 98  | |                     syn::Lit::Str(ref l, _) => {
[INFO] [stderr] 99  | |                         if id == "expr" {
[INFO] [stderr] 100 | |                             expr = Some(l.as_str());
[INFO] [stderr] ...   |
[INFO] [stderr] 103 | |                     _ => {}
[INFO] [stderr] 104 | |                 }
[INFO] [stderr]     | |_________________^
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#single_match
[INFO] [stderr] help: try this
[INFO] [stderr]     |
[INFO] [stderr] 97  |                 if let syn::Lit::Str(ref l, _) = *lit {
[INFO] [stderr] 98  |     if id == "expr" {
[INFO] [stderr] 99  |         expr = Some(l.as_str());
[INFO] [stderr] 100 |     }
[INFO] [stderr] 101 | }
[INFO] [stderr]     |
[INFO] [stderr] 
[INFO] [stderr] warning: use of `expect` followed by a function call
[INFO] [stderr]    --> src/lib.rs:109:18
[INFO] [stderr]     |
[INFO] [stderr] 109 |     let e = expr.expect(&format!("#[derive(Token)] requires all variants to have the `expr` attribute: `{}`", v.ident.as_ref()));
[INFO] [stderr]     |                  ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try this: `unwrap_or_else(|| panic!("#[derive(Token)] requires all variants to have the `expr` attribute: `{}`", v.ident.as_ref()))`
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(clippy::expect_fun_call)] on by default
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#expect_fun_call
[INFO] [stderr] 
[INFO] [stderr] warning: use of `expect` followed by a function call
[INFO] [stderr]    --> src/lib.rs:110:38
[INFO] [stderr]     |
[INFO] [stderr] 110 |     let regex = regex::Regex::new(e).expect(&format!("#[derive(Token)] Invalid regex for variant `{}`",v.ident.as_ref()));
[INFO] [stderr]     |                                      ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try this: `unwrap_or_else(|_| panic!("#[derive(Token)] Invalid regex for variant `{}`", v.ident.as_ref()))`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#expect_fun_call
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 5.12s
[INFO] running `"docker" "inspect" "dfb2bb4a12817f1de8da617e1dbf172fe4f300f522c00e54bb460cc35b4309df"`
[INFO] running `"docker" "rm" "-f" "dfb2bb4a12817f1de8da617e1dbf172fe4f300f522c00e54bb460cc35b4309df"`
[INFO] [stdout] dfb2bb4a12817f1de8da617e1dbf172fe4f300f522c00e54bb460cc35b4309df