[INFO] updating cached repository darshanparajuli/calc
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/darshanparajuli/calc
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/darshanparajuli/calc" "work/ex/clippy-test-run/sources/stable/gh/darshanparajuli/calc"`
[INFO] [stderr] Cloning into 'work/ex/clippy-test-run/sources/stable/gh/darshanparajuli/calc'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/darshanparajuli/calc" "work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/gh/darshanparajuli/calc"`
[INFO] [stderr] Cloning into 'work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/gh/darshanparajuli/calc'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] bcd07b75ecfdb38881060daba91d50aacdf3f4d3
[INFO] sha for GitHub repo darshanparajuli/calc: bcd07b75ecfdb38881060daba91d50aacdf3f4d3
[INFO] validating manifest of darshanparajuli/calc 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 darshanparajuli/calc 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 darshanparajuli/calc
[INFO] finished frobbing darshanparajuli/calc
[INFO] frobbed toml for darshanparajuli/calc written to work/ex/clippy-test-run/sources/stable/gh/darshanparajuli/calc/Cargo.toml
[INFO] started frobbing darshanparajuli/calc
[INFO] finished frobbing darshanparajuli/calc
[INFO] frobbed toml for darshanparajuli/calc written to work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/gh/darshanparajuli/calc/Cargo.toml
[INFO] crate darshanparajuli/calc 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 darshanparajuli/calc against stable for clippy-test-run
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/clippy-test-run/worker-4/stable:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/clippy-test-run/sources/stable/gh/darshanparajuli/calc:/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] 1e853b1e59ed98c5eba417cf21c07e118edd0c9d94efb815098afa7d78873325
[INFO] running `"docker" "start" "-a" "1e853b1e59ed98c5eba417cf21c07e118edd0c9d94efb815098afa7d78873325"`
[INFO] [stderr]     Blocking waiting for file lock on the registry index
[INFO] [stderr]     Checking calc v0.1.1 (/opt/crater/workdir)
[INFO] [stderr] warning: module has the same name as its containing module
[INFO] [stderr]  --> src/calc/mod.rs:1:1
[INFO] [stderr]   |
[INFO] [stderr] 1 | mod calc;
[INFO] [stderr]   | ^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(clippy::module_inception)] on by default
[INFO] [stderr]   = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#module_inception
[INFO] [stderr] 
[INFO] [stderr] warning: unneeded return statement
[INFO] [stderr]    --> src/calc/calc.rs:341:9
[INFO] [stderr]     |
[INFO] [stderr] 341 |         return v;
[INFO] [stderr]     |         ^^^^^^^^^ help: remove `return` as shown: `v`
[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/calc/calc.rs:350:9
[INFO] [stderr]     |
[INFO] [stderr] 350 |         return v;
[INFO] [stderr]     |         ^^^^^^^^^ help: remove `return` as shown: `v`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_return
[INFO] [stderr] 
[INFO] [stderr] warning: this `else { if .. }` block can be collapsed
[INFO] [stderr]    --> src/calc/parser.rs:318:28
[INFO] [stderr]     |
[INFO] [stderr] 318 |                       } else {
[INFO] [stderr]     |  ____________________________^
[INFO] [stderr] 319 | |                         if function.param_count < 0 {
[INFO] [stderr] 320 | |                             Err(format!(
[INFO] [stderr] 321 | |                                 "{} requires {} or more arguments",
[INFO] [stderr] ...   |
[INFO] [stderr] 330 | |                         }
[INFO] [stderr] 331 | |                     }
[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] 318 |                     } else if function.param_count < 0 {
[INFO] [stderr] 319 |     Err(format!(
[INFO] [stderr] 320 |         "{} requires {} or more arguments",
[INFO] [stderr] 321 |         lexeme,
[INFO] [stderr] 322 |         function.param_count.abs()
[INFO] [stderr] 323 |     ))
[INFO] [stderr]   ...
[INFO] [stderr] 
[INFO] [stderr] warning: unneeded return statement
[INFO] [stderr]    --> src/calc/scanner.rs:310:9
[INFO] [stderr]     |
[INFO] [stderr] 310 |         return token;
[INFO] [stderr]     |         ^^^^^^^^^^^^^ help: remove `return` as shown: `token`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_return
[INFO] [stderr] 
[INFO] [stderr] warning: module has the same name as its containing module
[INFO] [stderr]  --> src/calc/mod.rs:1:1
[INFO] [stderr]   |
[INFO] [stderr] 1 | mod calc;
[INFO] [stderr]   | ^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(clippy::module_inception)] on by default
[INFO] [stderr]   = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#module_inception
[INFO] [stderr] 
[INFO] [stderr] warning: unneeded return statement
[INFO] [stderr]    --> src/calc/calc.rs:341:9
[INFO] [stderr]     |
[INFO] [stderr] 341 |         return v;
[INFO] [stderr]     |         ^^^^^^^^^ help: remove `return` as shown: `v`
[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/calc/calc.rs:350:9
[INFO] [stderr]     |
[INFO] [stderr] 350 |         return v;
[INFO] [stderr]     |         ^^^^^^^^^ help: remove `return` as shown: `v`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_return
[INFO] [stderr] 
[INFO] [stderr] warning: unary minus has lower precedence than method call
[INFO] [stderr]    --> src/calc/calc.rs:487:45
[INFO] [stderr]     |
[INFO] [stderr] 487 |         run_test!("sign(-1)", format!("{}", -1_f64.signum()));
[INFO] [stderr]     |                                             ^^^^^^^^^^^^^^^ help: consider adding parentheses to clarify your intent: `-(1_f64.signum())`
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(clippy::precedence)] on by default
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#precedence
[INFO] [stderr] 
[INFO] [stderr] warning: this `else { if .. }` block can be collapsed
[INFO] [stderr]    --> src/calc/parser.rs:318:28
[INFO] [stderr]     |
[INFO] [stderr] 318 |                       } else {
[INFO] [stderr]     |  ____________________________^
[INFO] [stderr] 319 | |                         if function.param_count < 0 {
[INFO] [stderr] 320 | |                             Err(format!(
[INFO] [stderr] 321 | |                                 "{} requires {} or more arguments",
[INFO] [stderr] ...   |
[INFO] [stderr] 330 | |                         }
[INFO] [stderr] 331 | |                     }
[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] 318 |                     } else if function.param_count < 0 {
[INFO] [stderr] 319 |     Err(format!(
[INFO] [stderr] 320 |         "{} requires {} or more arguments",
[INFO] [stderr] 321 |         lexeme,
[INFO] [stderr] 322 |         function.param_count.abs()
[INFO] [stderr] 323 |     ))
[INFO] [stderr]   ...
[INFO] [stderr] 
[INFO] [stderr] warning: unneeded return statement
[INFO] [stderr]    --> src/calc/scanner.rs:310:9
[INFO] [stderr]     |
[INFO] [stderr] 310 |         return token;
[INFO] [stderr]     |         ^^^^^^^^^^^^^ help: remove `return` as shown: `token`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_return
[INFO] [stderr] 
[INFO] [stderr] warning: useless use of `format!`
[INFO] [stderr]    --> src/calc/calc.rs:324:31
[INFO] [stderr]     |
[INFO] [stderr] 324 |                 Some(f) => Ok(format!("{}", f.desc)),
[INFO] [stderr]     |                               ^^^^^^^^^^^^^^^^^^^^^ help: consider using .to_string(): `f.desc.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]     = note: this error originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] error: using `clone` on a double-reference; this will copy the reference instead of cloning the inner type
[INFO] [stderr]    --> src/calc/calc.rs:338:20
[INFO] [stderr]     |
[INFO] [stderr] 338 |             v.push(n.clone());
[INFO] [stderr]     |                    ^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[deny(clippy::clone_double_ref)] on by default
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#clone_double_ref
[INFO] [stderr] help: try dereferencing it
[INFO] [stderr]     |
[INFO] [stderr] 338 |             v.push(&(*n).clone());
[INFO] [stderr]     |                    ^^^^^^^^^^^^^
[INFO] [stderr] help: or try being explicit about what type to clone
[INFO] [stderr]     |
[INFO] [stderr] 338 |             v.push(&str::clone(n));
[INFO] [stderr]     |                    ^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] error: using `clone` on a double-reference; this will copy the reference instead of cloning the inner type
[INFO] [stderr]    --> src/calc/calc.rs:347:20
[INFO] [stderr]     |
[INFO] [stderr] 347 |             v.push(c.clone());
[INFO] [stderr]     |                    ^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#clone_double_ref
[INFO] [stderr] help: try dereferencing it
[INFO] [stderr]     |
[INFO] [stderr] 347 |             v.push(&(*c).clone());
[INFO] [stderr]     |                    ^^^^^^^^^^^^^
[INFO] [stderr] help: or try being explicit about what type to clone
[INFO] [stderr]     |
[INFO] [stderr] 347 |             v.push(&str::clone(c));
[INFO] [stderr]     |                    ^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: called `.get().unwrap()` on a HashMap. Using `[]` is more clear and more concise
[INFO] [stderr]   --> src/calc/parser.rs:84:18
[INFO] [stderr]    |
[INFO] [stderr] 84 |         for i in first_sets.get(&NonTerminal::Literal).unwrap() {
[INFO] [stderr]    |                  ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try this: `&first_sets[&NonTerminal::Literal]`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::get_unwrap)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#get_unwrap
[INFO] [stderr] 
[INFO] [stderr] warning: called `.get().unwrap()` on a HashMap. Using `[]` is more clear and more concise
[INFO] [stderr]   --> src/calc/parser.rs:87:18
[INFO] [stderr]    |
[INFO] [stderr] 87 |         for i in first_sets.get(&NonTerminal::Call).unwrap() {
[INFO] [stderr]    |                  ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try this: `&first_sets[&NonTerminal::Call]`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#get_unwrap
[INFO] [stderr] 
[INFO] [stderr] warning: called `.get().unwrap()` on a HashMap. Using `[]` is more clear and more concise
[INFO] [stderr]   --> src/calc/parser.rs:91:18
[INFO] [stderr]    |
[INFO] [stderr] 91 |         for i in first_sets.get(&NonTerminal::Op0).unwrap() {
[INFO] [stderr]    |                  ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try this: `&first_sets[&NonTerminal::Op0]`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#get_unwrap
[INFO] [stderr] 
[INFO] [stderr] warning: called `.get().unwrap()` on a HashMap. Using `[]` is more clear and more concise
[INFO] [stderr]   --> src/calc/parser.rs:97:18
[INFO] [stderr]    |
[INFO] [stderr] 97 |         for i in first_sets.get(&NonTerminal::Power).unwrap() {
[INFO] [stderr]    |                  ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try this: `&first_sets[&NonTerminal::Power]`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#get_unwrap
[INFO] [stderr] 
[INFO] [stderr] warning: called `.get().unwrap()` on a HashMap. Using `[]` is more clear and more concise
[INFO] [stderr]    --> src/calc/parser.rs:103:18
[INFO] [stderr]     |
[INFO] [stderr] 103 |         for i in first_sets.get(&NonTerminal::Factor).unwrap() {
[INFO] [stderr]     |                  ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try this: `&first_sets[&NonTerminal::Factor]`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#get_unwrap
[INFO] [stderr] 
[INFO] [stderr] warning: called `.get().unwrap()` on a HashMap. Using `[]` is more clear and more concise
[INFO] [stderr]    --> src/calc/parser.rs:109:18
[INFO] [stderr]     |
[INFO] [stderr] 109 |         for i in first_sets.get(&NonTerminal::Addend).unwrap() {
[INFO] [stderr]     |                  ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try this: `&first_sets[&NonTerminal::Addend]`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#get_unwrap
[INFO] [stderr] 
[INFO] [stderr] warning: called `.get().unwrap()` on a HashMap. Using `[]` is more clear and more concise
[INFO] [stderr]    --> src/calc/parser.rs:115:18
[INFO] [stderr]     |
[INFO] [stderr] 115 |         for i in first_sets.get(&NonTerminal::Exp).unwrap() {
[INFO] [stderr]     |                  ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try this: `&first_sets[&NonTerminal::Exp]`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#get_unwrap
[INFO] [stderr] 
[INFO] [stderr] warning: called `.get().unwrap()` on a HashMap. Using `[]` is more clear and more concise
[INFO] [stderr]    --> src/calc/parser.rs:121:18
[INFO] [stderr]     |
[INFO] [stderr] 121 |         for i in first_sets.get(&NonTerminal::Exp).unwrap() {
[INFO] [stderr]     |                  ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try this: `&first_sets[&NonTerminal::Exp]`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#get_unwrap
[INFO] [stderr] 
[INFO] [stderr] warning: called `.get().unwrap()` on a HashMap. Using `[]` is more clear and more concise
[INFO] [stderr]    --> src/calc/parser.rs:141:9
[INFO] [stderr]     |
[INFO] [stderr] 141 | /         self.first_sets
[INFO] [stderr] 142 | |             .get(nt)
[INFO] [stderr] 143 | |             .unwrap()
[INFO] [stderr]     | |_____________________^ help: try this: `&self.first_sets[nt]`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#get_unwrap
[INFO] [stderr] 
[INFO] [stderr] warning: this argument is passed by reference, but would be more efficient if passed by value
[INFO] [stderr]    --> src/calc/parser.rs:147:36
[INFO] [stderr]     |
[INFO] [stderr] 147 |     fn have(&mut self, token_type: &TokenType) -> bool {
[INFO] [stderr]     |                                    ^^^^^^^^^^ help: consider passing by value instead: `TokenType`
[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/calc/parser.rs:151:41
[INFO] [stderr]     |
[INFO] [stderr] 151 |     fn have_next(&mut self, token_type: &TokenType) -> bool {
[INFO] [stderr]     |                                         ^^^^^^^^^^ help: consider passing by value instead: `TokenType`
[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: this argument is passed by reference, but would be more efficient if passed by value
[INFO] [stderr]    --> src/calc/parser.rs:155:38
[INFO] [stderr]     |
[INFO] [stderr] 155 |     fn accept(&mut self, token_type: &TokenType) -> bool {
[INFO] [stderr]     |                                      ^^^^^^^^^^ help: consider passing by value instead: `TokenType`
[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: this argument is passed by reference, but would be more efficient if passed by value
[INFO] [stderr]    --> src/calc/parser.rs:173:38
[INFO] [stderr]     |
[INFO] [stderr] 173 |     fn expect(&mut self, token_type: &TokenType) -> Result<(), String> {
[INFO] [stderr]     |                                      ^^^^^^^^^^ help: consider passing by value instead: `TokenType`
[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: this argument is passed by reference, but would be more efficient if passed by value
[INFO] [stderr]    --> src/calc/parser.rs:181:47
[INFO] [stderr]     |
[INFO] [stderr] 181 |     fn expect_retrieve(&mut self, token_type: &TokenType) -> Result<Token, String> {
[INFO] [stderr]     |                                               ^^^^^^^^^^ help: consider passing by value instead: `TokenType`
[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: manual implementation of an assign operation
[INFO] [stderr]    --> src/calc/parser.rs:264:24
[INFO] [stderr]     |
[INFO] [stderr] 264 |                 "*" => a = a * b,
[INFO] [stderr]     |                        ^^^^^^^^^ help: replace it with: `a *= b`
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(clippy::assign_op_pattern)] on by default
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#assign_op_pattern
[INFO] [stderr] 
[INFO] [stderr] warning: manual implementation of an assign operation
[INFO] [stderr]    --> src/calc/parser.rs:265:24
[INFO] [stderr]     |
[INFO] [stderr] 265 |                 "/" => a = a / b,
[INFO] [stderr]     |                        ^^^^^^^^^ help: replace it with: `a /= b`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#assign_op_pattern
[INFO] [stderr] 
[INFO] [stderr] warning: manual implementation of an assign operation
[INFO] [stderr]    --> src/calc/parser.rs:266:24
[INFO] [stderr]     |
[INFO] [stderr] 266 |                 "%" => a = a % b,
[INFO] [stderr]     |                        ^^^^^^^^^ help: replace it with: `a %= b`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#assign_op_pattern
[INFO] [stderr] 
[INFO] [stderr] warning: manual implementation of an assign operation
[INFO] [stderr]    --> src/calc/parser.rs:282:24
[INFO] [stderr]     |
[INFO] [stderr] 282 |                 "-" => a = a - b,
[INFO] [stderr]     |                        ^^^^^^^^^ help: replace it with: `a -= b`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#assign_op_pattern
[INFO] [stderr] 
[INFO] [stderr] warning: manual implementation of an assign operation
[INFO] [stderr]    --> src/calc/parser.rs:283:24
[INFO] [stderr]     |
[INFO] [stderr] 283 |                 "+" => a = a + b,
[INFO] [stderr]     |                        ^^^^^^^^^ help: replace it with: `a += b`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#assign_op_pattern
[INFO] [stderr] 
[INFO] [stderr] warning: `if _ { .. } else { .. }` is an expression
[INFO] [stderr]    --> src/calc/parser.rs:387:9
[INFO] [stderr]     |
[INFO] [stderr] 387 | /         let mut result: Option<PResult> = None;
[INFO] [stderr] 388 | |
[INFO] [stderr] 389 | |         if self.have_nt(&NonTerminal::Line) {
[INFO] [stderr] 390 | |             result = Some(self.input()?);
[INFO] [stderr] 391 | |         }
[INFO] [stderr]     | |_________^ help: it is more idiomatic to write: `let <mut> result = if self.have_nt(&NonTerminal::Line) { Some(self.input()?) } else { None };`
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(clippy::useless_let_if_seq)] on by default
[INFO] [stderr]     = note: you might not need `mut` at all
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#useless_let_if_seq
[INFO] [stderr] 
[INFO] [stderr] warning: using `clone` on a `Copy` type
[INFO] [stderr]   --> src/calc/scanner.rs:40:25
[INFO] [stderr]    |
[INFO] [stderr] 40 |             token_type: self.token_type.clone(),
[INFO] [stderr]    |                         ^^^^^^^^^^^^^^^^^^^^^^^ help: try removing the `clone` call: `self.token_type`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::clone_on_copy)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#clone_on_copy
[INFO] [stderr] 
[INFO] [stderr] warning: using `clone` on a `Copy` type
[INFO] [stderr]    --> src/calc/scanner.rs:302:26
[INFO] [stderr]     |
[INFO] [stderr] 302 |         let next_state = self.next_state.clone();
[INFO] [stderr]     |                          ^^^^^^^^^^^^^^^^^^^^^^^ help: try removing the `clone` call: `self.next_state`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#clone_on_copy
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to 2 previous errors
[INFO] [stderr] 
[INFO] [stderr] error: Could not compile `calc`.
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] warning: useless use of `format!`
[INFO] [stderr]    --> src/calc/calc.rs:324:31
[INFO] [stderr]     |
[INFO] [stderr] 324 |                 Some(f) => Ok(format!("{}", f.desc)),
[INFO] [stderr]     |                               ^^^^^^^^^^^^^^^^^^^^^ help: consider using .to_string(): `f.desc.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]     = note: this error originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] error: using `clone` on a double-reference; this will copy the reference instead of cloning the inner type
[INFO] [stderr]    --> src/calc/calc.rs:338:20
[INFO] [stderr]     |
[INFO] [stderr] 338 |             v.push(n.clone());
[INFO] [stderr]     |                    ^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[deny(clippy::clone_double_ref)] on by default
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#clone_double_ref
[INFO] [stderr] help: try dereferencing it
[INFO] [stderr]     |
[INFO] [stderr] 338 |             v.push(&(*n).clone());
[INFO] [stderr]     |                    ^^^^^^^^^^^^^
[INFO] [stderr] help: or try being explicit about what type to clone
[INFO] [stderr]     |
[INFO] [stderr] 338 |             v.push(&str::clone(n));
[INFO] [stderr]     |                    ^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] error: using `clone` on a double-reference; this will copy the reference instead of cloning the inner type
[INFO] [stderr]    --> src/calc/calc.rs:347:20
[INFO] [stderr]     |
[INFO] [stderr] 347 |             v.push(c.clone());
[INFO] [stderr]     |                    ^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#clone_double_ref
[INFO] [stderr] help: try dereferencing it
[INFO] [stderr]     |
[INFO] [stderr] 347 |             v.push(&(*c).clone());
[INFO] [stderr]     |                    ^^^^^^^^^^^^^
[INFO] [stderr] help: or try being explicit about what type to clone
[INFO] [stderr]     |
[INFO] [stderr] 347 |             v.push(&str::clone(c));
[INFO] [stderr]     |                    ^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: the function has a cyclomatic complexity of 40
[INFO] [stderr]    --> src/calc/calc.rs:452:5
[INFO] [stderr]     |
[INFO] [stderr] 452 | /     fn builtins() {
[INFO] [stderr] 453 | |         run_test!("sin(PI)", format!("{}", ::std::f64::consts::PI.sin_cos().0));
[INFO] [stderr] 454 | |         run_test!(
[INFO] [stderr] 455 | |             "sin(PI/2)",
[INFO] [stderr] ...   |
[INFO] [stderr] 509 | |         run_test!("grad2deg(16)", format!("{}", 16_f64 * 9_f64 / 10_f64));
[INFO] [stderr] 510 | |     }
[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: called `.get().unwrap()` on a HashMap. Using `[]` is more clear and more concise
[INFO] [stderr]   --> src/calc/parser.rs:84:18
[INFO] [stderr]    |
[INFO] [stderr] 84 |         for i in first_sets.get(&NonTerminal::Literal).unwrap() {
[INFO] [stderr]    |                  ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try this: `&first_sets[&NonTerminal::Literal]`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::get_unwrap)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#get_unwrap
[INFO] [stderr] 
[INFO] [stderr] warning: called `.get().unwrap()` on a HashMap. Using `[]` is more clear and more concise
[INFO] [stderr]   --> src/calc/parser.rs:87:18
[INFO] [stderr]    |
[INFO] [stderr] 87 |         for i in first_sets.get(&NonTerminal::Call).unwrap() {
[INFO] [stderr]    |                  ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try this: `&first_sets[&NonTerminal::Call]`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#get_unwrap
[INFO] [stderr] 
[INFO] [stderr] warning: called `.get().unwrap()` on a HashMap. Using `[]` is more clear and more concise
[INFO] [stderr]   --> src/calc/parser.rs:91:18
[INFO] [stderr]    |
[INFO] [stderr] 91 |         for i in first_sets.get(&NonTerminal::Op0).unwrap() {
[INFO] [stderr]    |                  ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try this: `&first_sets[&NonTerminal::Op0]`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#get_unwrap
[INFO] [stderr] 
[INFO] [stderr] warning: called `.get().unwrap()` on a HashMap. Using `[]` is more clear and more concise
[INFO] [stderr]   --> src/calc/parser.rs:97:18
[INFO] [stderr]    |
[INFO] [stderr] 97 |         for i in first_sets.get(&NonTerminal::Power).unwrap() {
[INFO] [stderr]    |                  ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try this: `&first_sets[&NonTerminal::Power]`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#get_unwrap
[INFO] [stderr] 
[INFO] [stderr] warning: called `.get().unwrap()` on a HashMap. Using `[]` is more clear and more concise
[INFO] [stderr]    --> src/calc/parser.rs:103:18
[INFO] [stderr]     |
[INFO] [stderr] 103 |         for i in first_sets.get(&NonTerminal::Factor).unwrap() {
[INFO] [stderr]     |                  ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try this: `&first_sets[&NonTerminal::Factor]`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#get_unwrap
[INFO] [stderr] 
[INFO] [stderr] warning: called `.get().unwrap()` on a HashMap. Using `[]` is more clear and more concise
[INFO] [stderr]    --> src/calc/parser.rs:109:18
[INFO] [stderr]     |
[INFO] [stderr] 109 |         for i in first_sets.get(&NonTerminal::Addend).unwrap() {
[INFO] [stderr]     |                  ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try this: `&first_sets[&NonTerminal::Addend]`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#get_unwrap
[INFO] [stderr] 
[INFO] [stderr] warning: called `.get().unwrap()` on a HashMap. Using `[]` is more clear and more concise
[INFO] [stderr]    --> src/calc/parser.rs:115:18
[INFO] [stderr]     |
[INFO] [stderr] 115 |         for i in first_sets.get(&NonTerminal::Exp).unwrap() {
[INFO] [stderr]     |                  ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try this: `&first_sets[&NonTerminal::Exp]`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#get_unwrap
[INFO] [stderr] 
[INFO] [stderr] warning: called `.get().unwrap()` on a HashMap. Using `[]` is more clear and more concise
[INFO] [stderr]    --> src/calc/parser.rs:121:18
[INFO] [stderr]     |
[INFO] [stderr] 121 |         for i in first_sets.get(&NonTerminal::Exp).unwrap() {
[INFO] [stderr]     |                  ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try this: `&first_sets[&NonTerminal::Exp]`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#get_unwrap
[INFO] [stderr] 
[INFO] [stderr] warning: called `.get().unwrap()` on a HashMap. Using `[]` is more clear and more concise
[INFO] [stderr]    --> src/calc/parser.rs:141:9
[INFO] [stderr]     |
[INFO] [stderr] 141 | /         self.first_sets
[INFO] [stderr] 142 | |             .get(nt)
[INFO] [stderr] 143 | |             .unwrap()
[INFO] [stderr]     | |_____________________^ help: try this: `&self.first_sets[nt]`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#get_unwrap
[INFO] [stderr] 
[INFO] [stderr] warning: this argument is passed by reference, but would be more efficient if passed by value
[INFO] [stderr]    --> src/calc/parser.rs:147:36
[INFO] [stderr]     |
[INFO] [stderr] 147 |     fn have(&mut self, token_type: &TokenType) -> bool {
[INFO] [stderr]     |                                    ^^^^^^^^^^ help: consider passing by value instead: `TokenType`
[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/calc/parser.rs:151:41
[INFO] [stderr]     |
[INFO] [stderr] 151 |     fn have_next(&mut self, token_type: &TokenType) -> bool {
[INFO] [stderr]     |                                         ^^^^^^^^^^ help: consider passing by value instead: `TokenType`
[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: this argument is passed by reference, but would be more efficient if passed by value
[INFO] [stderr]    --> src/calc/parser.rs:155:38
[INFO] [stderr]     |
[INFO] [stderr] 155 |     fn accept(&mut self, token_type: &TokenType) -> bool {
[INFO] [stderr]     |                                      ^^^^^^^^^^ help: consider passing by value instead: `TokenType`
[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: this argument is passed by reference, but would be more efficient if passed by value
[INFO] [stderr]    --> src/calc/parser.rs:173:38
[INFO] [stderr]     |
[INFO] [stderr] 173 |     fn expect(&mut self, token_type: &TokenType) -> Result<(), String> {
[INFO] [stderr]     |                                      ^^^^^^^^^^ help: consider passing by value instead: `TokenType`
[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: this argument is passed by reference, but would be more efficient if passed by value
[INFO] [stderr]    --> src/calc/parser.rs:181:47
[INFO] [stderr]     |
[INFO] [stderr] 181 |     fn expect_retrieve(&mut self, token_type: &TokenType) -> Result<Token, String> {
[INFO] [stderr]     |                                               ^^^^^^^^^^ help: consider passing by value instead: `TokenType`
[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: manual implementation of an assign operation
[INFO] [stderr]    --> src/calc/parser.rs:264:24
[INFO] [stderr]     |
[INFO] [stderr] 264 |                 "*" => a = a * b,
[INFO] [stderr]     |                        ^^^^^^^^^ help: replace it with: `a *= b`
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(clippy::assign_op_pattern)] on by default
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#assign_op_pattern
[INFO] [stderr] 
[INFO] [stderr] warning: manual implementation of an assign operation
[INFO] [stderr]    --> src/calc/parser.rs:265:24
[INFO] [stderr]     |
[INFO] [stderr] 265 |                 "/" => a = a / b,
[INFO] [stderr]     |                        ^^^^^^^^^ help: replace it with: `a /= b`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#assign_op_pattern
[INFO] [stderr] 
[INFO] [stderr] warning: manual implementation of an assign operation
[INFO] [stderr]    --> src/calc/parser.rs:266:24
[INFO] [stderr]     |
[INFO] [stderr] 266 |                 "%" => a = a % b,
[INFO] [stderr]     |                        ^^^^^^^^^ help: replace it with: `a %= b`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#assign_op_pattern
[INFO] [stderr] 
[INFO] [stderr] warning: manual implementation of an assign operation
[INFO] [stderr]    --> src/calc/parser.rs:282:24
[INFO] [stderr]     |
[INFO] [stderr] 282 |                 "-" => a = a - b,
[INFO] [stderr]     |                        ^^^^^^^^^ help: replace it with: `a -= b`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#assign_op_pattern
[INFO] [stderr] 
[INFO] [stderr] warning: manual implementation of an assign operation
[INFO] [stderr]    --> src/calc/parser.rs:283:24
[INFO] [stderr]     |
[INFO] [stderr] 283 |                 "+" => a = a + b,
[INFO] [stderr]     |                        ^^^^^^^^^ help: replace it with: `a += b`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#assign_op_pattern
[INFO] [stderr] 
[INFO] [stderr] warning: `if _ { .. } else { .. }` is an expression
[INFO] [stderr]    --> src/calc/parser.rs:387:9
[INFO] [stderr]     |
[INFO] [stderr] 387 | /         let mut result: Option<PResult> = None;
[INFO] [stderr] 388 | |
[INFO] [stderr] 389 | |         if self.have_nt(&NonTerminal::Line) {
[INFO] [stderr] 390 | |             result = Some(self.input()?);
[INFO] [stderr] 391 | |         }
[INFO] [stderr]     | |_________^ help: it is more idiomatic to write: `let <mut> result = if self.have_nt(&NonTerminal::Line) { Some(self.input()?) } else { None };`
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(clippy::useless_let_if_seq)] on by default
[INFO] [stderr]     = note: you might not need `mut` at all
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#useless_let_if_seq
[INFO] [stderr] 
[INFO] [stderr] warning: using `clone` on a `Copy` type
[INFO] [stderr]   --> src/calc/scanner.rs:40:25
[INFO] [stderr]    |
[INFO] [stderr] 40 |             token_type: self.token_type.clone(),
[INFO] [stderr]    |                         ^^^^^^^^^^^^^^^^^^^^^^^ help: try removing the `clone` call: `self.token_type`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::clone_on_copy)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#clone_on_copy
[INFO] [stderr] 
[INFO] [stderr] warning: using `clone` on a `Copy` type
[INFO] [stderr]    --> src/calc/scanner.rs:302:26
[INFO] [stderr]     |
[INFO] [stderr] 302 |         let next_state = self.next_state.clone();
[INFO] [stderr]     |                          ^^^^^^^^^^^^^^^^^^^^^^^ help: try removing the `clone` call: `self.next_state`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#clone_on_copy
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to 2 previous errors
[INFO] [stderr] 
[INFO] [stderr] error: Could not compile `calc`.
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `"docker" "inspect" "1e853b1e59ed98c5eba417cf21c07e118edd0c9d94efb815098afa7d78873325"`
[INFO] running `"docker" "rm" "-f" "1e853b1e59ed98c5eba417cf21c07e118edd0c9d94efb815098afa7d78873325"`
[INFO] [stdout] 1e853b1e59ed98c5eba417cf21c07e118edd0c9d94efb815098afa7d78873325