[INFO] crate rstest 0.2.2 is already in cache
[INFO] extracting crate rstest 0.2.2 into work/ex/clippy-test-run/sources/stable/reg/rstest/0.2.2
[INFO] extracting crate rstest 0.2.2 into work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/reg/rstest/0.2.2
[INFO] validating manifest of rstest-0.2.2 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 rstest-0.2.2 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 rstest-0.2.2
[INFO] finished frobbing rstest-0.2.2
[INFO] frobbed toml for rstest-0.2.2 written to work/ex/clippy-test-run/sources/stable/reg/rstest/0.2.2/Cargo.toml
[INFO] started frobbing rstest-0.2.2
[INFO] finished frobbing rstest-0.2.2
[INFO] frobbed toml for rstest-0.2.2 written to work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/reg/rstest/0.2.2/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 rstest-0.2.2 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/rstest/0.2.2:/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] 46e542eb6ad15e11ac33a79294772c7e0ada3e5cc652ec61fc6f721ac32c617f
[INFO] running `"docker" "start" "-a" "46e542eb6ad15e11ac33a79294772c7e0ada3e5cc652ec61fc6f721ac32c617f"`
[INFO] [stderr]     Checking temp_testdir v0.2.2
[INFO] [stderr]    Compiling syn v0.14.9
[INFO] [stderr]     Checking combine v3.6.6
[INFO] [stderr]     Checking rstest v0.2.2 (/opt/crater/workdir)
[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:138:9
[INFO] [stderr]     |
[INFO] [stderr] 138 | /         match meta {
[INFO] [stderr] 139 | |             Meta(m) => {
[INFO] [stderr] 140 | |                 if let Some(item) = parse_meta_item(m) {
[INFO] [stderr] 141 | |                     match item {
[INFO] [stderr] ...   |
[INFO] [stderr] 147 | |             _ => {}
[INFO] [stderr] 148 | |         };
[INFO] [stderr]     | |_________^
[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] help: try this
[INFO] [stderr]     |
[INFO] [stderr] 138 |         if let Meta(m) = meta {
[INFO] [stderr] 139 |     if let Some(item) = parse_meta_item(m) {
[INFO] [stderr] 140 |         match item {
[INFO] [stderr] 141 |             Arg(arg) => args.push(arg),
[INFO] [stderr] 142 |             Case(case) => cases.push(case),
[INFO] [stderr] 143 |         }
[INFO] [stderr]   ...
[INFO] [stderr] 
[INFO] [stderr] warning: you don't need to add `&` to all patterns
[INFO] [stderr]    --> src/lib.rs:181:5
[INFO] [stderr]     |
[INFO] [stderr] 181 | /     if let &syn::FnArg::Captured(ref a) = arg {
[INFO] [stderr] 182 | |         let fixture = resolver
[INFO] [stderr] 183 | |             .resolve(arg).map(|e| e.clone())
[INFO] [stderr] 184 | |             .unwrap_or_else(|| default_fixture_name(a));
[INFO] [stderr] ...   |
[INFO] [stderr] 187 | |         None
[INFO] [stderr] 188 | |     }
[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] 181 |     if let syn::FnArg::Captured(ref a) = *arg {
[INFO] [stderr]     |            ^^^^^^^^^^^^^^^^^^^^^^^^^^^   ^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: You are using an explicit closure for cloning elements
[INFO] [stderr]    --> src/lib.rs:182:23
[INFO] [stderr]     |
[INFO] [stderr] 182 |           let fixture = resolver
[INFO] [stderr]     |  _______________________^
[INFO] [stderr] 183 | |             .resolve(arg).map(|e| e.clone())
[INFO] [stderr]     | |____________________________________________^
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(clippy::map_clone)] on by default
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#map_clone
[INFO] [stderr] help: Consider calling the dedicated `cloned` method
[INFO] [stderr]     |
[INFO] [stderr] 182 |         let fixture = resolver
[INFO] [stderr] 183 |             .resolve(arg).cloned()
[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/lib.rs:199:18
[INFO] [stderr]     |
[INFO] [stderr] 199 |     fn new(args: &Vec<syn::Ident>, case: &'a TestCase) -> Self {
[INFO] [stderr]     |                  ^^^^^^^^^^^^^^^^ help: change this to: `&[syn::Ident]`
[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: You are using an explicit closure for cloning elements
[INFO] [stderr]    --> src/lib.rs:210:13
[INFO] [stderr]     |
[INFO] [stderr] 210 | /             self.0.get(&arg_name(arg).to_string())
[INFO] [stderr] 211 | |                 .map(|&a| a)
[INFO] [stderr]     | |____________________________^ help: Consider calling the dedicated `cloned` method: `self.0.get(&arg_name(arg).to_string()).cloned()`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#map_clone
[INFO] [stderr] 
[INFO] [stderr]     Checking toml_edit v0.1.3
[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:138:9
[INFO] [stderr]     |
[INFO] [stderr] 138 | /         match meta {
[INFO] [stderr] 139 | |             Meta(m) => {
[INFO] [stderr] 140 | |                 if let Some(item) = parse_meta_item(m) {
[INFO] [stderr] 141 | |                     match item {
[INFO] [stderr] ...   |
[INFO] [stderr] 147 | |             _ => {}
[INFO] [stderr] 148 | |         };
[INFO] [stderr]     | |_________^
[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] help: try this
[INFO] [stderr]     |
[INFO] [stderr] 138 |         if let Meta(m) = meta {
[INFO] [stderr] 139 |     if let Some(item) = parse_meta_item(m) {
[INFO] [stderr] 140 |         match item {
[INFO] [stderr] 141 |             Arg(arg) => args.push(arg),
[INFO] [stderr] 142 |             Case(case) => cases.push(case),
[INFO] [stderr] 143 |         }
[INFO] [stderr]   ...
[INFO] [stderr] 
[INFO] [stderr] warning: you don't need to add `&` to all patterns
[INFO] [stderr]    --> src/lib.rs:181:5
[INFO] [stderr]     |
[INFO] [stderr] 181 | /     if let &syn::FnArg::Captured(ref a) = arg {
[INFO] [stderr] 182 | |         let fixture = resolver
[INFO] [stderr] 183 | |             .resolve(arg).map(|e| e.clone())
[INFO] [stderr] 184 | |             .unwrap_or_else(|| default_fixture_name(a));
[INFO] [stderr] ...   |
[INFO] [stderr] 187 | |         None
[INFO] [stderr] 188 | |     }
[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] 181 |     if let syn::FnArg::Captured(ref a) = *arg {
[INFO] [stderr]     |            ^^^^^^^^^^^^^^^^^^^^^^^^^^^   ^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: You are using an explicit closure for cloning elements
[INFO] [stderr]    --> src/lib.rs:182:23
[INFO] [stderr]     |
[INFO] [stderr] 182 |           let fixture = resolver
[INFO] [stderr]     |  _______________________^
[INFO] [stderr] 183 | |             .resolve(arg).map(|e| e.clone())
[INFO] [stderr]     | |____________________________________________^
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(clippy::map_clone)] on by default
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#map_clone
[INFO] [stderr] help: Consider calling the dedicated `cloned` method
[INFO] [stderr]     |
[INFO] [stderr] 182 |         let fixture = resolver
[INFO] [stderr] 183 |             .resolve(arg).cloned()
[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/lib.rs:199:18
[INFO] [stderr]     |
[INFO] [stderr] 199 |     fn new(args: &Vec<syn::Ident>, case: &'a TestCase) -> Self {
[INFO] [stderr]     |                  ^^^^^^^^^^^^^^^^ help: change this to: `&[syn::Ident]`
[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: You are using an explicit closure for cloning elements
[INFO] [stderr]    --> src/lib.rs:210:13
[INFO] [stderr]     |
[INFO] [stderr] 210 | /             self.0.get(&arg_name(arg).to_string())
[INFO] [stderr] 211 | |                 .map(|&a| a)
[INFO] [stderr]     | |____________________________^ help: Consider calling the dedicated `cloned` method: `self.0.get(&arg_name(arg).to_string()).cloned()`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#map_clone
[INFO] [stderr] 
[INFO] [stderr] warning: you don't need to add `&` to all patterns
[INFO] [stderr]    --> src/lib.rs:363:9
[INFO] [stderr]     |
[INFO] [stderr] 363 | /         if let &syn::Item::Fn(ref item_fn) = item {
[INFO] [stderr] 364 | |             item_fn.decl.inputs.iter()
[INFO] [stderr] 365 | |         } else {
[INFO] [stderr] 366 | |             panic!("Wrong ast!")
[INFO] [stderr] 367 | |         }
[INFO] [stderr]     | |_________^
[INFO] [stderr]     |
[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] 363 |         if let syn::Item::Fn(ref item_fn) = *item {
[INFO] [stderr]     |                ^^^^^^^^^^^^^^^^^^^^^^^^^^   ^^^^^
[INFO] [stderr] 
[INFO] [stderr] error: handle written amount returned or use `Write::write_all` instead
[INFO] [stderr]    --> tests/prj/mod.rs:135:9
[INFO] [stderr]     |
[INFO] [stderr] 135 | /         File::create(path)
[INFO] [stderr] 136 | |             .expect("cannot update Cargo.toml")
[INFO] [stderr] 137 | |             .write(doc.to_string().as_bytes())
[INFO] [stderr] 138 | |             .expect("cannot write Cargo.toml");
[INFO] [stderr]     | |______________________________________________^
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[deny(clippy::unused_io_amount)] on by default
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#unused_io_amount
[INFO] [stderr] 
[INFO] [stderr] warning: you don't need to add `&` to all patterns
[INFO] [stderr]   --> tests/utils/mod.rs:64:9
[INFO] [stderr]    |
[INFO] [stderr] 64 | /         match self {
[INFO] [stderr] 65 | |             &Ok(ref s) => s.as_ref().to_owned(),
[INFO] [stderr] 66 | |             &Fail(ref s) => s.as_ref().to_owned()
[INFO] [stderr] 67 | |         }
[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] 64 |         match *self {
[INFO] [stderr] 65 |             Ok(ref s) => s.as_ref().to_owned(),
[INFO] [stderr] 66 |             Fail(ref s) => s.as_ref().to_owned()
[INFO] [stderr]    |
[INFO] [stderr] 
[INFO] [stderr] warning: useless use of `format!`
[INFO] [stderr]    --> tests/utils/mod.rs:119:32
[INFO] [stderr]     |
[INFO] [stderr] 119 |             assert_in!(output, format!("failures:"));
[INFO] [stderr]     |                                ^^^^^^^^^^^^^^^^^^^^ help: consider using .to_string(): `"failures:".to_string()`
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(clippy::useless_format)] on by default
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#useless_format
[INFO] [stderr] 
[INFO] [stderr] warning: called `filter(p).next()` on an `Iterator`. This is more succinctly expressed by calling `.find(p)` instead.
[INFO] [stderr]    --> tests/utils/mod.rs:128:9
[INFO] [stderr]     |
[INFO] [stderr] 128 |         self.0.iter().filter(|r| r.is_fail()).next().is_some()
[INFO] [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(clippy::filter_next)] on by default
[INFO] [stderr]     = note: replace `filter(|r| r.is_fail()).next()` with `find(|r| r.is_fail())`
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#filter_next
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to previous error
[INFO] [stderr] 
[INFO] [stderr] error: Could not compile `rstest`.
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: handle written amount returned or use `Write::write_all` instead
[INFO] [stderr]    --> tests/prj/mod.rs:135:9
[INFO] [stderr]     |
[INFO] [stderr] 135 | /         File::create(path)
[INFO] [stderr] 136 | |             .expect("cannot update Cargo.toml")
[INFO] [stderr] 137 | |             .write(doc.to_string().as_bytes())
[INFO] [stderr] 138 | |             .expect("cannot write Cargo.toml");
[INFO] [stderr]     | |______________________________________________^
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[deny(clippy::unused_io_amount)] on by default
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#unused_io_amount
[INFO] [stderr] 
[INFO] [stderr] warning: you don't need to add `&` to all patterns
[INFO] [stderr]   --> tests/utils/mod.rs:64:9
[INFO] [stderr]    |
[INFO] [stderr] 64 | /         match self {
[INFO] [stderr] 65 | |             &Ok(ref s) => s.as_ref().to_owned(),
[INFO] [stderr] 66 | |             &Fail(ref s) => s.as_ref().to_owned()
[INFO] [stderr] 67 | |         }
[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] 64 |         match *self {
[INFO] [stderr] 65 |             Ok(ref s) => s.as_ref().to_owned(),
[INFO] [stderr] 66 |             Fail(ref s) => s.as_ref().to_owned()
[INFO] [stderr]    |
[INFO] [stderr] 
[INFO] [stderr] warning: useless use of `format!`
[INFO] [stderr]    --> tests/utils/mod.rs:119:32
[INFO] [stderr]     |
[INFO] [stderr] 119 |             assert_in!(output, format!("failures:"));
[INFO] [stderr]     |                                ^^^^^^^^^^^^^^^^^^^^ help: consider using .to_string(): `"failures:".to_string()`
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(clippy::useless_format)] on by default
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#useless_format
[INFO] [stderr] 
[INFO] [stderr] warning: called `filter(p).next()` on an `Iterator`. This is more succinctly expressed by calling `.find(p)` instead.
[INFO] [stderr]    --> tests/utils/mod.rs:128:9
[INFO] [stderr]     |
[INFO] [stderr] 128 |         self.0.iter().filter(|r| r.is_fail()).next().is_some()
[INFO] [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(clippy::filter_next)] on by default
[INFO] [stderr]     = note: replace `filter(|r| r.is_fail()).next()` with `find(|r| r.is_fail())`
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#filter_next
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to previous error
[INFO] [stderr] 
[INFO] [stderr] error: Could not compile `rstest`.
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `"docker" "inspect" "46e542eb6ad15e11ac33a79294772c7e0ada3e5cc652ec61fc6f721ac32c617f"`
[INFO] running `"docker" "rm" "-f" "46e542eb6ad15e11ac33a79294772c7e0ada3e5cc652ec61fc6f721ac32c617f"`
[INFO] [stdout] 46e542eb6ad15e11ac33a79294772c7e0ada3e5cc652ec61fc6f721ac32c617f