[INFO] updating cached repository ashleygwilliams/relational_node-rust
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/ashleygwilliams/relational_node-rust
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/ashleygwilliams/relational_node-rust" "work/ex/clippy-test-run/sources/stable/gh/ashleygwilliams/relational_node-rust"`
[INFO] [stderr] Cloning into 'work/ex/clippy-test-run/sources/stable/gh/ashleygwilliams/relational_node-rust'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/ashleygwilliams/relational_node-rust" "work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/gh/ashleygwilliams/relational_node-rust"`
[INFO] [stderr] Cloning into 'work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/gh/ashleygwilliams/relational_node-rust'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] d87ba77c54b3f92b2372fd07daba48055acd5477
[INFO] sha for GitHub repo ashleygwilliams/relational_node-rust: d87ba77c54b3f92b2372fd07daba48055acd5477
[INFO] validating manifest of ashleygwilliams/relational_node-rust 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 ashleygwilliams/relational_node-rust 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 ashleygwilliams/relational_node-rust
[INFO] finished frobbing ashleygwilliams/relational_node-rust
[INFO] frobbed toml for ashleygwilliams/relational_node-rust written to work/ex/clippy-test-run/sources/stable/gh/ashleygwilliams/relational_node-rust/Cargo.toml
[INFO] started frobbing ashleygwilliams/relational_node-rust
[INFO] finished frobbing ashleygwilliams/relational_node-rust
[INFO] frobbed toml for ashleygwilliams/relational_node-rust written to work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/gh/ashleygwilliams/relational_node-rust/Cargo.toml
[INFO] crate ashleygwilliams/relational_node-rust has a lockfile. skipping
[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 ashleygwilliams/relational_node-rust against stable+rustflags=-Dclippy::into_iter_on_array for clippy-test-run
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/clippy-test-run/worker-0/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/gh/ashleygwilliams/relational_node-rust:/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 -Dclippy::into_iter_on_array" "-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] 502e06b8937c4bed55b4426577c77fd479ecb95e419aad14e1b1d5304bf3efb6
[INFO] running `"docker" "start" "-a" "502e06b8937c4bed55b4426577c77fd479ecb95e419aad14e1b1d5304bf3efb6"`
[INFO] [stderr]     Checking relation_node v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: variant is never constructed: `Undefined`
[INFO] [stderr]  --> src/value.rs:6:3
[INFO] [stderr]   |
[INFO] [stderr] 6 |   Undefined,
[INFO] [stderr]   |   ^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(dead_code)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Variable`
[INFO] [stderr]  --> src/value.rs:7:3
[INFO] [stderr]   |
[INFO] [stderr] 7 |   Variable(Variable),
[INFO] [stderr]   |   ^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Object`
[INFO] [stderr]  --> src/value.rs:8:3
[INFO] [stderr]   |
[INFO] [stderr] 8 |   Object(HashMap<String, Value>),
[INFO] [stderr]   |   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `String`
[INFO] [stderr]  --> src/value.rs:9:3
[INFO] [stderr]   |
[INFO] [stderr] 9 |   String(String),
[INFO] [stderr]   |   ^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Array`
[INFO] [stderr]   --> src/value.rs:10:3
[INFO] [stderr]    |
[INFO] [stderr] 10 |   Array(Vec<Value>),
[INFO] [stderr]    |   ^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Number`
[INFO] [stderr]   --> src/value.rs:11:3
[INFO] [stderr]    |
[INFO] [stderr] 11 |   Number(u32),
[INFO] [stderr]    |   ^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Boolean`
[INFO] [stderr]   --> src/value.rs:12:3
[INFO] [stderr]    |
[INFO] [stderr] 12 |   Boolean(bool),
[INFO] [stderr]    |   ^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `create_variables`
[INFO] [stderr]   --> src/state.rs:12:3
[INFO] [stderr]    |
[INFO] [stderr] 12 |   fn create_variables(&self, names: Vec<String>) -> (State, Vec<Variable>) {
[INFO] [stderr]    |   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `assign_values`
[INFO] [stderr]   --> src/state.rs:20:3
[INFO] [stderr]    |
[INFO] [stderr] 20 |   fn assign_values(&self, new_vals: HashMap<String, Value>) -> State {
[INFO] [stderr]    |   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `value_of`
[INFO] [stderr]   --> src/state.rs:26:3
[INFO] [stderr]    |
[INFO] [stderr] 26 |   fn value_of(&self, variable: &Variable) -> Value {
[INFO] [stderr]    |   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `unify`
[INFO] [stderr]   --> src/state.rs:37:3
[INFO] [stderr]    |
[INFO] [stderr] 37 |   fn unify(&self, a: &Variable, b: &Variable) -> Option<State> {
[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/state.rs:46:5
[INFO] [stderr]    |
[INFO] [stderr] 46 | /     match a {
[INFO] [stderr] 47 | |       Value::Variable(ref a) => {
[INFO] [stderr] 48 | |         new_val.insert(a.name.clone(), b);
[INFO] [stderr] 49 | |         return Some(self.assign_values(new_val));
[INFO] [stderr] 50 | |       },
[INFO] [stderr] 51 | |       _ => (),
[INFO] [stderr] 52 | |     }
[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] 46 |     if let Value::Variable(ref a) = a {
[INFO] [stderr] 47 |   new_val.insert(a.name.clone(), b);
[INFO] [stderr] 48 |   return Some(self.assign_values(new_val));
[INFO] [stderr] 49 | }
[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/state.rs:54:5
[INFO] [stderr]    |
[INFO] [stderr] 54 | /     match b {
[INFO] [stderr] 55 | |       Value::Variable(ref b) => {
[INFO] [stderr] 56 | |         new_val.insert(b.name.clone(), a);
[INFO] [stderr] 57 | |         return Some(self.assign_values(new_val));
[INFO] [stderr] 58 | |       },
[INFO] [stderr] 59 | |       _ => ()
[INFO] [stderr] 60 | |     }
[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] 54 |     if let Value::Variable(ref b) = b {
[INFO] [stderr] 55 |   new_val.insert(b.name.clone(), a);
[INFO] [stderr] 56 |   return Some(self.assign_values(new_val));
[INFO] [stderr] 57 | }
[INFO] [stderr]    |
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Undefined`
[INFO] [stderr]  --> src/value.rs:6:3
[INFO] [stderr]   |
[INFO] [stderr] 6 |   Undefined,
[INFO] [stderr]   |   ^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(dead_code)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Variable`
[INFO] [stderr]  --> src/value.rs:7:3
[INFO] [stderr]   |
[INFO] [stderr] 7 |   Variable(Variable),
[INFO] [stderr]   |   ^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Object`
[INFO] [stderr]  --> src/value.rs:8:3
[INFO] [stderr]   |
[INFO] [stderr] 8 |   Object(HashMap<String, Value>),
[INFO] [stderr]   |   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `String`
[INFO] [stderr]  --> src/value.rs:9:3
[INFO] [stderr]   |
[INFO] [stderr] 9 |   String(String),
[INFO] [stderr]   |   ^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Array`
[INFO] [stderr]   --> src/value.rs:10:3
[INFO] [stderr]    |
[INFO] [stderr] 10 |   Array(Vec<Value>),
[INFO] [stderr]    |   ^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Number`
[INFO] [stderr]   --> src/value.rs:11:3
[INFO] [stderr]    |
[INFO] [stderr] 11 |   Number(u32),
[INFO] [stderr]    |   ^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Boolean`
[INFO] [stderr]   --> src/value.rs:12:3
[INFO] [stderr]    |
[INFO] [stderr] 12 |   Boolean(bool),
[INFO] [stderr]    |   ^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `create_variables`
[INFO] [stderr]   --> src/state.rs:12:3
[INFO] [stderr]    |
[INFO] [stderr] 12 |   fn create_variables(&self, names: Vec<String>) -> (State, Vec<Variable>) {
[INFO] [stderr]    |   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `assign_values`
[INFO] [stderr]   --> src/state.rs:20:3
[INFO] [stderr]    |
[INFO] [stderr] 20 |   fn assign_values(&self, new_vals: HashMap<String, Value>) -> State {
[INFO] [stderr]    |   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `value_of`
[INFO] [stderr]   --> src/state.rs:26:3
[INFO] [stderr]    |
[INFO] [stderr] 26 |   fn value_of(&self, variable: &Variable) -> Value {
[INFO] [stderr]    |   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `unify`
[INFO] [stderr]   --> src/state.rs:37:3
[INFO] [stderr]    |
[INFO] [stderr] 37 |   fn unify(&self, a: &Variable, b: &Variable) -> Option<State> {
[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/state.rs:46:5
[INFO] [stderr]    |
[INFO] [stderr] 46 | /     match a {
[INFO] [stderr] 47 | |       Value::Variable(ref a) => {
[INFO] [stderr] 48 | |         new_val.insert(a.name.clone(), b);
[INFO] [stderr] 49 | |         return Some(self.assign_values(new_val));
[INFO] [stderr] 50 | |       },
[INFO] [stderr] 51 | |       _ => (),
[INFO] [stderr] 52 | |     }
[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] 46 |     if let Value::Variable(ref a) = a {
[INFO] [stderr] 47 |   new_val.insert(a.name.clone(), b);
[INFO] [stderr] 48 |   return Some(self.assign_values(new_val));
[INFO] [stderr] 49 | }
[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/state.rs:54:5
[INFO] [stderr]    |
[INFO] [stderr] 54 | /     match b {
[INFO] [stderr] 55 | |       Value::Variable(ref b) => {
[INFO] [stderr] 56 | |         new_val.insert(b.name.clone(), a);
[INFO] [stderr] 57 | |         return Some(self.assign_values(new_val));
[INFO] [stderr] 58 | |       },
[INFO] [stderr] 59 | |       _ => ()
[INFO] [stderr] 60 | |     }
[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] 54 |     if let Value::Variable(ref b) = b {
[INFO] [stderr] 55 |   new_val.insert(b.name.clone(), a);
[INFO] [stderr] 56 |   return Some(self.assign_values(new_val));
[INFO] [stderr] 57 | }
[INFO] [stderr]    |
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.31s
[INFO] running `"docker" "inspect" "502e06b8937c4bed55b4426577c77fd479ecb95e419aad14e1b1d5304bf3efb6"`
[INFO] running `"docker" "rm" "-f" "502e06b8937c4bed55b4426577c77fd479ecb95e419aad14e1b1d5304bf3efb6"`
[INFO] [stdout] 502e06b8937c4bed55b4426577c77fd479ecb95e419aad14e1b1d5304bf3efb6