[INFO] updating cached repository ayazhafiz/xela-lang
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/ayazhafiz/xela-lang
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/ayazhafiz/xela-lang" "work/ex/clippy-test-run/sources/stable/gh/ayazhafiz/xela-lang"`
[INFO] [stderr] Cloning into 'work/ex/clippy-test-run/sources/stable/gh/ayazhafiz/xela-lang'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/ayazhafiz/xela-lang" "work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/gh/ayazhafiz/xela-lang"`
[INFO] [stderr] Cloning into 'work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/gh/ayazhafiz/xela-lang'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 21996448093fed6dd893e6293f9cec3e29362238
[INFO] sha for GitHub repo ayazhafiz/xela-lang: 21996448093fed6dd893e6293f9cec3e29362238
[INFO] validating manifest of ayazhafiz/xela-lang 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 ayazhafiz/xela-lang 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 ayazhafiz/xela-lang
[INFO] finished frobbing ayazhafiz/xela-lang
[INFO] frobbed toml for ayazhafiz/xela-lang written to work/ex/clippy-test-run/sources/stable/gh/ayazhafiz/xela-lang/Cargo.toml
[INFO] started frobbing ayazhafiz/xela-lang
[INFO] finished frobbing ayazhafiz/xela-lang
[INFO] frobbed toml for ayazhafiz/xela-lang written to work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/gh/ayazhafiz/xela-lang/Cargo.toml
[INFO] crate ayazhafiz/xela-lang 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 ayazhafiz/xela-lang 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/gh/ayazhafiz/xela-lang:/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] 7b719df365b31723675d6bc53b90109a223c589207239dc6aff1190228221021
[INFO] running `"docker" "start" "-a" "7b719df365b31723675d6bc53b90109a223c589207239dc6aff1190228221021"`
[INFO] [stderr]     Checking flang v0.1.2 (/opt/crater/workdir)
[INFO] [stderr] warning: redundant field names in struct initialization
[INFO] [stderr]   --> src/flang/ast.rs:35:13
[INFO] [stderr]    |
[INFO] [stderr] 35 |             token: token,
[INFO] [stderr]    |             ^^^^^^^^^^^^ help: replace it with: `token`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::redundant_field_names)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#redundant_field_names
[INFO] [stderr] 
[INFO] [stderr] warning: redundant field names in struct initialization
[INFO] [stderr]   --> src/flang/ast.rs:36:13
[INFO] [stderr]    |
[INFO] [stderr] 36 |             children: children,
[INFO] [stderr]    |             ^^^^^^^^^^^^^^^^^^ help: replace it with: `children`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#redundant_field_names
[INFO] [stderr] 
[INFO] [stderr] warning: redundant field names in struct initialization
[INFO] [stderr]   --> src/flang/parser/parser.rs:71:13
[INFO] [stderr]    |
[INFO] [stderr] 71 |             lexer: lexer,
[INFO] [stderr]    |             ^^^^^^^^^^^^ help: replace it with: `lexer`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#redundant_field_names
[INFO] [stderr] 
[INFO] [stderr] warning: redundant field names in struct initialization
[INFO] [stderr]   --> src/flang/ast.rs:35:13
[INFO] [stderr]    |
[INFO] [stderr] 35 |             token: token,
[INFO] [stderr]    |             ^^^^^^^^^^^^ help: replace it with: `token`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::redundant_field_names)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#redundant_field_names
[INFO] [stderr] 
[INFO] [stderr] warning: redundant field names in struct initialization
[INFO] [stderr]   --> src/flang/ast.rs:36:13
[INFO] [stderr]    |
[INFO] [stderr] 36 |             children: children,
[INFO] [stderr]    |             ^^^^^^^^^^^^^^^^^^ help: replace it with: `children`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#redundant_field_names
[INFO] [stderr] 
[INFO] [stderr] warning: redundant field names in struct initialization
[INFO] [stderr]   --> src/flang/parser/parser.rs:71:13
[INFO] [stderr]    |
[INFO] [stderr] 71 |             lexer: lexer,
[INFO] [stderr]    |             ^^^^^^^^^^^^ help: replace it with: `lexer`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#redundant_field_names
[INFO] [stderr] 
[INFO] [stderr] warning: module has the same name as its containing module
[INFO] [stderr]  --> src/flang/interpreter/mod.rs:1:1
[INFO] [stderr]   |
[INFO] [stderr] 1 | mod interpreter;
[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/flang/interpreter/interpreter.rs:30:9
[INFO] [stderr]    |
[INFO] [stderr] 30 | /         return match self.visit(&tree) {
[INFO] [stderr] 31 | |             Ok(_) => Ok(()),
[INFO] [stderr] 32 | |             Err(e) => Err(e),
[INFO] [stderr] 33 | |         };
[INFO] [stderr]    | |__________^
[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] help: remove `return` as shown
[INFO] [stderr]    |
[INFO] [stderr] 30 |         match self.visit(&tree) {
[INFO] [stderr] 31 |             Ok(_) => Ok(()),
[INFO] [stderr] 32 |             Err(e) => Err(e),
[INFO] [stderr] 33 |         }
[INFO] [stderr]    |
[INFO] [stderr] 
[INFO] [stderr] warning: unneeded return statement
[INFO] [stderr]    --> src/flang/lexer.rs:127:26
[INFO] [stderr]     |
[INFO] [stderr] 127 |             "@define" => return Ok(Token::DEFINE),
[INFO] [stderr]     |                          ^^^^^^^^^^^^^^^^^^^^^^^^ help: remove `return` as shown: `Ok(Token::DEFINE)`
[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: unneeded return statement
[INFO] [stderr]    --> src/flang/lexer.rs:128:23
[INFO] [stderr]     |
[INFO] [stderr] 128 |             "@let" => return Ok(Token::LET),
[INFO] [stderr]     |                       ^^^^^^^^^^^^^^^^^^^^^ help: remove `return` as shown: `Ok(Token::LET)`
[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: unneeded return statement
[INFO] [stderr]    --> src/flang/lexer.rs:129:21
[INFO] [stderr]     |
[INFO] [stderr] 129 |             "fn" => return Ok(Token::FN),
[INFO] [stderr]     |                     ^^^^^^^^^^^^^^^^^^^^ help: remove `return` as shown: `Ok(Token::FN)`
[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: unneeded return statement
[INFO] [stderr]    --> src/flang/lexer.rs:130:24
[INFO] [stderr]     |
[INFO] [stderr] 130 |             "begin" => return Ok(Token::BEGIN),
[INFO] [stderr]     |                        ^^^^^^^^^^^^^^^^^^^^^^^ help: remove `return` as shown: `Ok(Token::BEGIN)`
[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: unneeded return statement
[INFO] [stderr]    --> src/flang/lexer.rs:131:22
[INFO] [stderr]     |
[INFO] [stderr] 131 |             "end" => return Ok(Token::END),
[INFO] [stderr]     |                      ^^^^^^^^^^^^^^^^^^^^^ help: remove `return` as shown: `Ok(Token::END)`
[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: unneeded return statement
[INFO] [stderr]    --> src/flang/lexer.rs:132:23
[INFO] [stderr]     |
[INFO] [stderr] 132 |             "uint" => return Ok(Token::UintT),
[INFO] [stderr]     |                       ^^^^^^^^^^^^^^^^^^^^^^^ help: remove `return` as shown: `Ok(Token::UintT)`
[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: unneeded return statement
[INFO] [stderr]    --> src/flang/lexer.rs:133:23
[INFO] [stderr]     |
[INFO] [stderr] 133 |             "real" => return Ok(Token::RealT),
[INFO] [stderr]     |                       ^^^^^^^^^^^^^^^^^^^^^^^ help: remove `return` as shown: `Ok(Token::RealT)`
[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: unneeded return statement
[INFO] [stderr]    --> src/flang/lexer.rs:145:17
[INFO] [stderr]     |
[INFO] [stderr] 145 |                 return Ok(Token::ID(result));
[INFO] [stderr]     |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove `return` as shown: `Ok(Token::ID(result))`
[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/flang/parser/mod.rs:1:1
[INFO] [stderr]   |
[INFO] [stderr] 1 | mod parser;
[INFO] [stderr]   | ^^^^^^^^^^^
[INFO] [stderr]   |
[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/flang/parser/builder/math.rs:76:17
[INFO] [stderr]    |
[INFO] [stderr] 76 |                 return Ok(ASTNode::from(token, vec![]))
[INFO] [stderr]    |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove `return` as shown: `Ok(ASTNode::from(token, vec![]))`
[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: unneeded return statement
[INFO] [stderr]   --> src/flang/parser/builder/math.rs:83:17
[INFO] [stderr]    |
[INFO] [stderr] 83 |                 return Ok(ASTNode::from(token, vec![n]));
[INFO] [stderr]    |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove `return` as shown: `Ok(ASTNode::from(token, vec![n]))`
[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: unneeded return statement
[INFO] [stderr]   --> src/flang/parser/builder/math.rs:90:17
[INFO] [stderr]    |
[INFO] [stderr] 90 |                 return Ok(ASTNode::from(token, vec![n]));
[INFO] [stderr]    |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove `return` as shown: `Ok(ASTNode::from(token, vec![n]))`
[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: unneeded return statement
[INFO] [stderr]   --> src/flang/parser/builder/math.rs:95:30
[INFO] [stderr]    |
[INFO] [stderr] 95 |                     Ok(_) => return node,
[INFO] [stderr]    |                              ^^^^^^^^^^^ help: remove `return` as shown: `node`
[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: unneeded return statement
[INFO] [stderr]   --> src/flang/parser/builder/math.rs:96:31
[INFO] [stderr]    |
[INFO] [stderr] 96 |                     Err(e) => return Err(e),
[INFO] [stderr]    |                               ^^^^^^^^^^^^^ help: remove `return` as shown: `Err(e)`
[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: unneeded return statement
[INFO] [stderr]   --> src/flang/parser/builder/statement.rs:65:22
[INFO] [stderr]    |
[INFO] [stderr] 65 |             Ok(_) => return Ok(program_node),
[INFO] [stderr]    |                      ^^^^^^^^^^^^^^^^^^^^^^^ help: remove `return` as shown: `Ok(program_node)`
[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: unneeded return statement
[INFO] [stderr]   --> src/flang/parser/builder/statement.rs:66:23
[INFO] [stderr]    |
[INFO] [stderr] 66 |             Err(e) => return Err(e),
[INFO] [stderr]    |                       ^^^^^^^^^^^^^ help: remove `return` as shown: `Err(e)`
[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: unneeded return statement
[INFO] [stderr]    --> src/flang/parser/builder/statement.rs:116:37
[INFO] [stderr]     |
[INFO] [stderr] 116 |                     Token::BEGIN => return self.build_statement_lists(),
[INFO] [stderr]     |                                     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove `return` as shown: `self.build_statement_lists()`
[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: unneeded return statement
[INFO] [stderr]    --> src/flang/parser/builder/statement.rs:117:37
[INFO] [stderr]     |
[INFO] [stderr] 117 |                     Token::ID(_) => return self.parse_assignment(),
[INFO] [stderr]     |                                     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove `return` as shown: `self.parse_assignment()`
[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: unneeded return statement
[INFO] [stderr]    --> src/flang/parser/builder/statement.rs:118:26
[INFO] [stderr]     |
[INFO] [stderr] 118 |                     _ => return Ok(ASTNode::from(Token::NONE, vec![])),
[INFO] [stderr]     |                          ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove `return` as shown: `Ok(ASTNode::from(Token::NONE, vec![]))`
[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: unneeded return statement
[INFO] [stderr]    --> src/flang/parser/builder/statement.rs:121:23
[INFO] [stderr]     |
[INFO] [stderr] 121 |             Err(e) => return Err(e),
[INFO] [stderr]     |                       ^^^^^^^^^^^^^ help: remove `return` as shown: `Err(e)`
[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: unneeded return statement
[INFO] [stderr]    --> src/flang/parser/builder/statement.rs:173:25
[INFO] [stderr]     |
[INFO] [stderr] 173 | /                         return Err(ProgramError::of(
[INFO] [stderr] 174 | |                             "UnexpectedIdentifier",
[INFO] [stderr] 175 | |                             "Unexpected identifier found in a position after semicolon.",
[INFO] [stderr] 176 | |                         ))
[INFO] [stderr]     | |__________________________^
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_return
[INFO] [stderr] help: remove `return` as shown
[INFO] [stderr]     |
[INFO] [stderr] 173 |                         Err(ProgramError::of(
[INFO] [stderr] 174 |                             "UnexpectedIdentifier",
[INFO] [stderr] 175 |                             "Unexpected identifier found in a position after semicolon.",
[INFO] [stderr] 176 |                         ))
[INFO] [stderr]     |
[INFO] [stderr] 
[INFO] [stderr] warning: unneeded return statement
[INFO] [stderr]    --> src/flang/parser/builder/statement.rs:178:26
[INFO] [stderr]     |
[INFO] [stderr] 178 |                     _ => return Ok(nodes),
[INFO] [stderr]     |                          ^^^^^^^^^^^^^^^^ help: remove `return` as shown: `Ok(nodes)`
[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: unneeded return statement
[INFO] [stderr]    --> src/flang/parser/builder/statement.rs:181:23
[INFO] [stderr]     |
[INFO] [stderr] 181 |             Err(e) => return Err(e),
[INFO] [stderr]     |                       ^^^^^^^^^^^^^ help: remove `return` as shown: `Err(e)`
[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: unneeded return statement
[INFO] [stderr]    --> src/flang/parser/builder/statement.rs:215:13
[INFO] [stderr]     |
[INFO] [stderr] 215 |             return Ok(token);
[INFO] [stderr]     |             ^^^^^^^^^^^^^^^^^ help: remove `return` as shown: `Ok(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: unneeded return statement
[INFO] [stderr]    --> src/flang/parser/builder/statement.rs:217:13
[INFO] [stderr]     |
[INFO] [stderr] 217 | /             return Err(ProgramError::of(
[INFO] [stderr] 218 | |                 "UnexpectedType",
[INFO] [stderr] 219 | |                 "Unexpected type declaration.",
[INFO] [stderr] 220 | |             ));
[INFO] [stderr]     | |_______________^
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_return
[INFO] [stderr] help: remove `return` as shown
[INFO] [stderr]     |
[INFO] [stderr] 217 |             Err(ProgramError::of(
[INFO] [stderr] 218 |                 "UnexpectedType",
[INFO] [stderr] 219 |                 "Unexpected type declaration.",
[INFO] [stderr] 220 |             ))
[INFO] [stderr]     |
[INFO] [stderr] 
[INFO] [stderr] warning: unneeded return statement
[INFO] [stderr]   --> src/flang/parser/builder/variable.rs:19:22
[INFO] [stderr]    |
[INFO] [stderr] 19 |             Ok(_) => return Ok(ASTNode::from(token, vec![])),
[INFO] [stderr]    |                      ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove `return` as shown: `Ok(ASTNode::from(token, vec![]))`
[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: unneeded return statement
[INFO] [stderr]   --> src/flang/parser/builder/variable.rs:20:23
[INFO] [stderr]    |
[INFO] [stderr] 20 |             Err(e) => return Err(e),
[INFO] [stderr]    |                       ^^^^^^^^^^^^^ help: remove `return` as shown: `Err(e)`
[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/flang/interpreter/mod.rs:1:1
[INFO] [stderr]   |
[INFO] [stderr] 1 | mod interpreter;
[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/flang/interpreter/interpreter.rs:30:9
[INFO] [stderr]    |
[INFO] [stderr] 30 | /         return match self.visit(&tree) {
[INFO] [stderr] 31 | |             Ok(_) => Ok(()),
[INFO] [stderr] 32 | |             Err(e) => Err(e),
[INFO] [stderr] 33 | |         };
[INFO] [stderr]    | |__________^
[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] help: remove `return` as shown
[INFO] [stderr]    |
[INFO] [stderr] 30 |         match self.visit(&tree) {
[INFO] [stderr] 31 |             Ok(_) => Ok(()),
[INFO] [stderr] 32 |             Err(e) => Err(e),
[INFO] [stderr] 33 |         }
[INFO] [stderr]    |
[INFO] [stderr] 
[INFO] [stderr] warning: unneeded return statement
[INFO] [stderr]    --> src/flang/lexer.rs:127:26
[INFO] [stderr]     |
[INFO] [stderr] 127 |             "@define" => return Ok(Token::DEFINE),
[INFO] [stderr]     |                          ^^^^^^^^^^^^^^^^^^^^^^^^ help: remove `return` as shown: `Ok(Token::DEFINE)`
[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: unneeded return statement
[INFO] [stderr]    --> src/flang/lexer.rs:128:23
[INFO] [stderr]     |
[INFO] [stderr] 128 |             "@let" => return Ok(Token::LET),
[INFO] [stderr]     |                       ^^^^^^^^^^^^^^^^^^^^^ help: remove `return` as shown: `Ok(Token::LET)`
[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: unneeded return statement
[INFO] [stderr]    --> src/flang/lexer.rs:129:21
[INFO] [stderr]     |
[INFO] [stderr] 129 |             "fn" => return Ok(Token::FN),
[INFO] [stderr]     |                     ^^^^^^^^^^^^^^^^^^^^ help: remove `return` as shown: `Ok(Token::FN)`
[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: unneeded return statement
[INFO] [stderr]    --> src/flang/lexer.rs:130:24
[INFO] [stderr]     |
[INFO] [stderr] 130 |             "begin" => return Ok(Token::BEGIN),
[INFO] [stderr]     |                        ^^^^^^^^^^^^^^^^^^^^^^^ help: remove `return` as shown: `Ok(Token::BEGIN)`
[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: unneeded return statement
[INFO] [stderr]    --> src/flang/lexer.rs:131:22
[INFO] [stderr]     |
[INFO] [stderr] 131 |             "end" => return Ok(Token::END),
[INFO] [stderr]     |                      ^^^^^^^^^^^^^^^^^^^^^ help: remove `return` as shown: `Ok(Token::END)`
[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: unneeded return statement
[INFO] [stderr]    --> src/flang/lexer.rs:132:23
[INFO] [stderr]     |
[INFO] [stderr] 132 |             "uint" => return Ok(Token::UintT),
[INFO] [stderr]     |                       ^^^^^^^^^^^^^^^^^^^^^^^ help: remove `return` as shown: `Ok(Token::UintT)`
[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: unneeded return statement
[INFO] [stderr]    --> src/flang/lexer.rs:133:23
[INFO] [stderr]     |
[INFO] [stderr] 133 |             "real" => return Ok(Token::RealT),
[INFO] [stderr]     |                       ^^^^^^^^^^^^^^^^^^^^^^^ help: remove `return` as shown: `Ok(Token::RealT)`
[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: unneeded return statement
[INFO] [stderr]    --> src/flang/lexer.rs:145:17
[INFO] [stderr]     |
[INFO] [stderr] 145 |                 return Ok(Token::ID(result));
[INFO] [stderr]     |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove `return` as shown: `Ok(Token::ID(result))`
[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/flang/parser/mod.rs:1:1
[INFO] [stderr]   |
[INFO] [stderr] 1 | mod parser;
[INFO] [stderr]   | ^^^^^^^^^^^
[INFO] [stderr]   |
[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/flang/parser/builder/math.rs:76:17
[INFO] [stderr]    |
[INFO] [stderr] 76 |                 return Ok(ASTNode::from(token, vec![]))
[INFO] [stderr]    |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove `return` as shown: `Ok(ASTNode::from(token, vec![]))`
[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: unneeded return statement
[INFO] [stderr]   --> src/flang/parser/builder/math.rs:83:17
[INFO] [stderr]    |
[INFO] [stderr] 83 |                 return Ok(ASTNode::from(token, vec![n]));
[INFO] [stderr]    |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove `return` as shown: `Ok(ASTNode::from(token, vec![n]))`
[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: unneeded return statement
[INFO] [stderr]   --> src/flang/parser/builder/math.rs:90:17
[INFO] [stderr]    |
[INFO] [stderr] 90 |                 return Ok(ASTNode::from(token, vec![n]));
[INFO] [stderr]    |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove `return` as shown: `Ok(ASTNode::from(token, vec![n]))`
[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: unneeded return statement
[INFO] [stderr]   --> src/flang/parser/builder/math.rs:95:30
[INFO] [stderr]    |
[INFO] [stderr] 95 |                     Ok(_) => return node,
[INFO] [stderr]    |                              ^^^^^^^^^^^ help: remove `return` as shown: `node`
[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: unneeded return statement
[INFO] [stderr]   --> src/flang/parser/builder/math.rs:96:31
[INFO] [stderr]    |
[INFO] [stderr] 96 |                     Err(e) => return Err(e),
[INFO] [stderr]    |                               ^^^^^^^^^^^^^ help: remove `return` as shown: `Err(e)`
[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: unneeded return statement
[INFO] [stderr]   --> src/flang/parser/builder/statement.rs:65:22
[INFO] [stderr]    |
[INFO] [stderr] 65 |             Ok(_) => return Ok(program_node),
[INFO] [stderr]    |                      ^^^^^^^^^^^^^^^^^^^^^^^ help: remove `return` as shown: `Ok(program_node)`
[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: unneeded return statement
[INFO] [stderr]   --> src/flang/parser/builder/statement.rs:66:23
[INFO] [stderr]    |
[INFO] [stderr] 66 |             Err(e) => return Err(e),
[INFO] [stderr]    |                       ^^^^^^^^^^^^^ help: remove `return` as shown: `Err(e)`
[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: unneeded return statement
[INFO] [stderr]    --> src/flang/parser/builder/statement.rs:116:37
[INFO] [stderr]     |
[INFO] [stderr] 116 |                     Token::BEGIN => return self.build_statement_lists(),
[INFO] [stderr]     |                                     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove `return` as shown: `self.build_statement_lists()`
[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: unneeded return statement
[INFO] [stderr]    --> src/flang/parser/builder/statement.rs:117:37
[INFO] [stderr]     |
[INFO] [stderr] 117 |                     Token::ID(_) => return self.parse_assignment(),
[INFO] [stderr]     |                                     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove `return` as shown: `self.parse_assignment()`
[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: unneeded return statement
[INFO] [stderr]    --> src/flang/parser/builder/statement.rs:118:26
[INFO] [stderr]     |
[INFO] [stderr] 118 |                     _ => return Ok(ASTNode::from(Token::NONE, vec![])),
[INFO] [stderr]     |                          ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove `return` as shown: `Ok(ASTNode::from(Token::NONE, vec![]))`
[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: unneeded return statement
[INFO] [stderr]    --> src/flang/parser/builder/statement.rs:121:23
[INFO] [stderr]     |
[INFO] [stderr] 121 |             Err(e) => return Err(e),
[INFO] [stderr]     |                       ^^^^^^^^^^^^^ help: remove `return` as shown: `Err(e)`
[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: unneeded return statement
[INFO] [stderr]    --> src/flang/parser/builder/statement.rs:173:25
[INFO] [stderr]     |
[INFO] [stderr] 173 | /                         return Err(ProgramError::of(
[INFO] [stderr] 174 | |                             "UnexpectedIdentifier",
[INFO] [stderr] 175 | |                             "Unexpected identifier found in a position after semicolon.",
[INFO] [stderr] 176 | |                         ))
[INFO] [stderr]     | |__________________________^
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_return
[INFO] [stderr] help: remove `return` as shown
[INFO] [stderr]     |
[INFO] [stderr] 173 |                         Err(ProgramError::of(
[INFO] [stderr] 174 |                             "UnexpectedIdentifier",
[INFO] [stderr] 175 |                             "Unexpected identifier found in a position after semicolon.",
[INFO] [stderr] 176 |                         ))
[INFO] [stderr]     |
[INFO] [stderr] 
[INFO] [stderr] warning: unneeded return statement
[INFO] [stderr]    --> src/flang/parser/builder/statement.rs:178:26
[INFO] [stderr]     |
[INFO] [stderr] 178 |                     _ => return Ok(nodes),
[INFO] [stderr]     |                          ^^^^^^^^^^^^^^^^ help: remove `return` as shown: `Ok(nodes)`
[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: unneeded return statement
[INFO] [stderr]    --> src/flang/parser/builder/statement.rs:181:23
[INFO] [stderr]     |
[INFO] [stderr] 181 |             Err(e) => return Err(e),
[INFO] [stderr]     |                       ^^^^^^^^^^^^^ help: remove `return` as shown: `Err(e)`
[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: unneeded return statement
[INFO] [stderr]    --> src/flang/parser/builder/statement.rs:215:13
[INFO] [stderr]     |
[INFO] [stderr] 215 |             return Ok(token);
[INFO] [stderr]     |             ^^^^^^^^^^^^^^^^^ help: remove `return` as shown: `Ok(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: unneeded return statement
[INFO] [stderr]    --> src/flang/parser/builder/statement.rs:217:13
[INFO] [stderr]     |
[INFO] [stderr] 217 | /             return Err(ProgramError::of(
[INFO] [stderr] 218 | |                 "UnexpectedType",
[INFO] [stderr] 219 | |                 "Unexpected type declaration.",
[INFO] [stderr] 220 | |             ));
[INFO] [stderr]     | |_______________^
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_return
[INFO] [stderr] help: remove `return` as shown
[INFO] [stderr]     |
[INFO] [stderr] 217 |             Err(ProgramError::of(
[INFO] [stderr] 218 |                 "UnexpectedType",
[INFO] [stderr] 219 |                 "Unexpected type declaration.",
[INFO] [stderr] 220 |             ))
[INFO] [stderr]     |
[INFO] [stderr] 
[INFO] [stderr] warning: unneeded return statement
[INFO] [stderr]   --> src/flang/parser/builder/variable.rs:19:22
[INFO] [stderr]    |
[INFO] [stderr] 19 |             Ok(_) => return Ok(ASTNode::from(token, vec![])),
[INFO] [stderr]    |                      ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove `return` as shown: `Ok(ASTNode::from(token, vec![]))`
[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: unneeded return statement
[INFO] [stderr]   --> src/flang/parser/builder/variable.rs:20:23
[INFO] [stderr]    |
[INFO] [stderr] 20 |             Err(e) => return Err(e),
[INFO] [stderr]    |                       ^^^^^^^^^^^^^ help: remove `return` as shown: `Err(e)`
[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: you don't need to add `&` to all patterns
[INFO] [stderr]   --> src/flang/interpreter/visitor/math.rs:15:9
[INFO] [stderr]    |
[INFO] [stderr] 15 | /         match node.token() {
[INFO] [stderr] 16 | |             &Token::REAL(_) | &Token::UINT(_) => Ok(self.visit_number(node).unwrap()),
[INFO] [stderr] 17 | |             &Token::MULTIPLY |
[INFO] [stderr] 18 | |             &Token::DIVIDE |
[INFO] [stderr] ...  |
[INFO] [stderr] 37 | |             )),
[INFO] [stderr] 38 | |         }
[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] 15 |         match *node.token() {
[INFO] [stderr] 16 |             Token::REAL(_) | Token::UINT(_) => Ok(self.visit_number(node).unwrap()),
[INFO] [stderr] 17 |             Token::MULTIPLY |
[INFO] [stderr] 18 |             Token::DIVIDE |
[INFO] [stderr] 19 |             Token::DIVIDEINT |
[INFO] [stderr] 20 |             Token::MODULO |
[INFO] [stderr]  ...
[INFO] [stderr] 
[INFO] [stderr] warning: needlessly taken reference of both operands
[INFO] [stderr]   --> src/flang/interpreter/visitor/math.rs:24:20
[INFO] [stderr]    |
[INFO] [stderr] 24 |                 if &node.children().len() == &2 {
[INFO] [stderr]    |                    ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::op_ref)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#op_ref
[INFO] [stderr] help: use the values directly
[INFO] [stderr]    |
[INFO] [stderr] 24 |                 if node.children().len() == 2 {
[INFO] [stderr]    |                    ^^^^^^^^^^^^^^^^^^^^^    ^
[INFO] [stderr] 
[INFO] [stderr] warning: you don't need to add `&` to all patterns
[INFO] [stderr]   --> src/flang/interpreter/visitor/math.rs:50:9
[INFO] [stderr]    |
[INFO] [stderr] 50 | /         match node.token() {
[INFO] [stderr] 51 | |             &Token::REAL(i) => Ok(i as f64),
[INFO] [stderr] 52 | |             &Token::UINT(i) => Ok(i as f64),
[INFO] [stderr] 53 | |             _ => Err(ProgramError::of(
[INFO] [stderr] ...  |
[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#match_ref_pats
[INFO] [stderr] help: instead of prefixing all patterns with `&`, you can dereference the expression
[INFO] [stderr]    |
[INFO] [stderr] 50 |         match *node.token() {
[INFO] [stderr] 51 |             Token::REAL(i) => Ok(i as f64),
[INFO] [stderr] 52 |             Token::UINT(i) => Ok(i as f64),
[INFO] [stderr]    |
[INFO] [stderr] 
[INFO] [stderr] warning: you don't need to add `&` to all patterns
[INFO] [stderr]   --> src/flang/interpreter/visitor/math.rs:67:9
[INFO] [stderr]    |
[INFO] [stderr] 67 | /         match node.token() {
[INFO] [stderr] 68 | |             &Token::PLUS => Ok((left + right) as f64),
[INFO] [stderr] 69 | |             &Token::MINUS => Ok((left - right) as f64),
[INFO] [stderr] 70 | |             &Token::MULTIPLY => Ok((left * right) as f64),
[INFO] [stderr] ...  |
[INFO] [stderr] 78 | |             )),
[INFO] [stderr] 79 | |         }
[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] 67 |         match *node.token() {
[INFO] [stderr] 68 |             Token::PLUS => Ok((left + right) as f64),
[INFO] [stderr] 69 |             Token::MINUS => Ok((left - right) as f64),
[INFO] [stderr] 70 |             Token::MULTIPLY => Ok((left * right) as f64),
[INFO] [stderr] 71 |             Token::DIVIDE => Ok(left as f64 / right as f64),
[INFO] [stderr] 72 |             Token::DIVIDEINT => Ok((left as isize / right as isize) as f64),
[INFO] [stderr]  ...
[INFO] [stderr] 
[INFO] [stderr] warning: you don't need to add `&` to all patterns
[INFO] [stderr]    --> src/flang/interpreter/visitor/math.rs:85:9
[INFO] [stderr]     |
[INFO] [stderr] 85  | /         match node.token() {
[INFO] [stderr] 86  | |             &Token::PLUS => Ok(expr as f64),
[INFO] [stderr] 87  | |             &Token::MINUS => Ok(-expr as f64),
[INFO] [stderr] 88  | |             &Token::FACTORIAL => {
[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#match_ref_pats
[INFO] [stderr] help: instead of prefixing all patterns with `&`, you can dereference the expression
[INFO] [stderr]     |
[INFO] [stderr] 85  |         match *node.token() {
[INFO] [stderr] 86  |             Token::PLUS => Ok(expr as f64),
[INFO] [stderr] 87  |             Token::MINUS => Ok(-expr as f64),
[INFO] [stderr] 88  |             Token::FACTORIAL => {
[INFO] [stderr]     |
[INFO] [stderr] 
[INFO] [stderr] warning: this `.fold` can be written more succinctly using another method
[INFO] [stderr]   --> src/flang/interpreter/visitor/math.rs:90:35
[INFO] [stderr]    |
[INFO] [stderr] 90 |                     (1..(val + 1)).fold(1, |acc, value| acc * value)
[INFO] [stderr]    |                                   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try: `.product()`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::unnecessary_fold)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#unnecessary_fold
[INFO] [stderr] 
[INFO] [stderr] warning: an inclusive range would be more readable
[INFO] [stderr]   --> src/flang/interpreter/visitor/math.rs:90:21
[INFO] [stderr]    |
[INFO] [stderr] 90 |                     (1..(val + 1)).fold(1, |acc, value| acc * value)
[INFO] [stderr]    |                     ^^^^^^^^^^^^^^ help: use: `(1..=val)`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::range_plus_one)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#range_plus_one
[INFO] [stderr] 
[INFO] [stderr] warning: you don't need to add `&` to all patterns
[INFO] [stderr]   --> src/flang/interpreter/visitor/statement.rs:14:9
[INFO] [stderr]    |
[INFO] [stderr] 14 | /         match node.token() {
[INFO] [stderr] 15 | |             &Token::LIST => self.visit_list(node),
[INFO] [stderr] 16 | |             &Token::ASSIGN => self.visit_assign(node),
[INFO] [stderr] 17 | |             &Token::FACTORY(_) => self.visit_block(&node.children()[0]),
[INFO] [stderr] ...  |
[INFO] [stderr] 22 | |             )),
[INFO] [stderr] 23 | |         }
[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] 14 |         match *node.token() {
[INFO] [stderr] 15 |             Token::LIST => self.visit_list(node),
[INFO] [stderr] 16 |             Token::ASSIGN => self.visit_assign(node),
[INFO] [stderr] 17 |             Token::FACTORY(_) => self.visit_block(&node.children()[0]),
[INFO] [stderr] 18 |             Token::FUNCTION(_) => self.visit_fn(node),
[INFO] [stderr]    |
[INFO] [stderr] 
[INFO] [stderr] warning: using `clone` on a `Copy` type
[INFO] [stderr]   --> src/flang/interpreter/visitor/statement.rs:28:31
[INFO] [stderr]    |
[INFO] [stderr] 28 |             Some(value) => Ok(value.clone()),
[INFO] [stderr]    |                               ^^^^^^^^^^^^^ help: try dereferencing it: `*value`
[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: you don't need to add `&` to both the expression and the patterns
[INFO] [stderr]   --> src/flang/interpreter/visitor/statement.rs:88:24
[INFO] [stderr]    |
[INFO] [stderr] 88 |           let variable = match &node.children()[0].token().clone() {
[INFO] [stderr]    |  ________________________^
[INFO] [stderr] 89 | |             &Token::ID(ref v) => v.clone(),
[INFO] [stderr] 90 | |             _ => {
[INFO] [stderr] 91 | |                 return Err(ProgramError::of(
[INFO] [stderr] ...  |
[INFO] [stderr] 95 | |             }
[INFO] [stderr] 96 | |         };
[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: try
[INFO] [stderr]    |
[INFO] [stderr] 88 |         let variable = match node.children()[0].token().clone() {
[INFO] [stderr] 89 |             Token::ID(ref v) => v.clone(),
[INFO] [stderr]    |
[INFO] [stderr] 
[INFO] [stderr] warning: you don't need to add `&` to all patterns
[INFO] [stderr]   --> src/flang/interpreter/visitor/mod.rs:17:9
[INFO] [stderr]    |
[INFO] [stderr] 17 | /         match node.token() {
[INFO] [stderr] 18 | |             &Token::LIST |
[INFO] [stderr] 19 | |             &Token::ASSIGN|
[INFO] [stderr] 20 | |             &Token::FACTORY(_) => match self.visit_statement(node) {
[INFO] [stderr] ...  |
[INFO] [stderr] 27 | |             )),
[INFO] [stderr] 28 | |         }
[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] 17 |         match *node.token() {
[INFO] [stderr] 18 |             Token::LIST |
[INFO] [stderr] 19 |             Token::ASSIGN|
[INFO] [stderr] 20 |             Token::FACTORY(_) => match self.visit_statement(node) {
[INFO] [stderr]    |
[INFO] [stderr] 
[INFO] [stderr] warning: this argument is passed by reference, but would be more efficient if passed by value
[INFO] [stderr]   --> src/flang/lexer.rs:65:31
[INFO] [stderr]    |
[INFO] [stderr] 65 |     fn peek_ahead(&self, amt: &usize) -> String {
[INFO] [stderr]    |                               ^^^^^^ help: consider passing by value instead: `usize`
[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: usage of `contains_key` followed by `insert` on a `HashMap`
[INFO] [stderr]   --> src/flang/symbol_table.rs:17:9
[INFO] [stderr]    |
[INFO] [stderr] 17 | /         if !self.table.contains_key(&variable) {
[INFO] [stderr] 18 | |             self.table.insert(variable, value);
[INFO] [stderr] 19 | |         }
[INFO] [stderr]    | |_________^ help: consider using: `self.table.entry(variable).or_insert(value)`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::map_entry)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#map_entry
[INFO] [stderr] 
[INFO] [stderr] warning: you don't need to add `&` to all patterns
[INFO] [stderr]   --> src/flang/interpreter/visitor/math.rs:15:9
[INFO] [stderr]    |
[INFO] [stderr] 15 | /         match node.token() {
[INFO] [stderr] 16 | |             &Token::REAL(_) | &Token::UINT(_) => Ok(self.visit_number(node).unwrap()),
[INFO] [stderr] 17 | |             &Token::MULTIPLY |
[INFO] [stderr] 18 | |             &Token::DIVIDE |
[INFO] [stderr] ...  |
[INFO] [stderr] 37 | |             )),
[INFO] [stderr] 38 | |         }
[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] 15 |         match *node.token() {
[INFO] [stderr] 16 |             Token::REAL(_) | Token::UINT(_) => Ok(self.visit_number(node).unwrap()),
[INFO] [stderr] 17 |             Token::MULTIPLY |
[INFO] [stderr] 18 |             Token::DIVIDE |
[INFO] [stderr] 19 |             Token::DIVIDEINT |
[INFO] [stderr] 20 |             Token::MODULO |
[INFO] [stderr]  ...
[INFO] [stderr] 
[INFO] [stderr] warning: needlessly taken reference of both operands
[INFO] [stderr]   --> src/flang/interpreter/visitor/math.rs:24:20
[INFO] [stderr]    |
[INFO] [stderr] 24 |                 if &node.children().len() == &2 {
[INFO] [stderr]    |                    ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::op_ref)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#op_ref
[INFO] [stderr] help: use the values directly
[INFO] [stderr]    |
[INFO] [stderr] 24 |                 if node.children().len() == 2 {
[INFO] [stderr]    |                    ^^^^^^^^^^^^^^^^^^^^^    ^
[INFO] [stderr] 
[INFO] [stderr] warning: you don't need to add `&` to all patterns
[INFO] [stderr]   --> src/flang/interpreter/visitor/math.rs:50:9
[INFO] [stderr]    |
[INFO] [stderr] 50 | /         match node.token() {
[INFO] [stderr] 51 | |             &Token::REAL(i) => Ok(i as f64),
[INFO] [stderr] 52 | |             &Token::UINT(i) => Ok(i as f64),
[INFO] [stderr] 53 | |             _ => Err(ProgramError::of(
[INFO] [stderr] ...  |
[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#match_ref_pats
[INFO] [stderr] help: instead of prefixing all patterns with `&`, you can dereference the expression
[INFO] [stderr]    |
[INFO] [stderr] 50 |         match *node.token() {
[INFO] [stderr] 51 |             Token::REAL(i) => Ok(i as f64),
[INFO] [stderr] 52 |             Token::UINT(i) => Ok(i as f64),
[INFO] [stderr]    |
[INFO] [stderr] 
[INFO] [stderr] warning: you don't need to add `&` to all patterns
[INFO] [stderr]   --> src/flang/interpreter/visitor/math.rs:67:9
[INFO] [stderr]    |
[INFO] [stderr] 67 | /         match node.token() {
[INFO] [stderr] 68 | |             &Token::PLUS => Ok((left + right) as f64),
[INFO] [stderr] 69 | |             &Token::MINUS => Ok((left - right) as f64),
[INFO] [stderr] 70 | |             &Token::MULTIPLY => Ok((left * right) as f64),
[INFO] [stderr] ...  |
[INFO] [stderr] 78 | |             )),
[INFO] [stderr] 79 | |         }
[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] 67 |         match *node.token() {
[INFO] [stderr] 68 |             Token::PLUS => Ok((left + right) as f64),
[INFO] [stderr] 69 |             Token::MINUS => Ok((left - right) as f64),
[INFO] [stderr] 70 |             Token::MULTIPLY => Ok((left * right) as f64),
[INFO] [stderr] 71 |             Token::DIVIDE => Ok(left as f64 / right as f64),
[INFO] [stderr] 72 |             Token::DIVIDEINT => Ok((left as isize / right as isize) as f64),
[INFO] [stderr]  ...
[INFO] [stderr] 
[INFO] [stderr] warning: you don't need to add `&` to all patterns
[INFO] [stderr]    --> src/flang/interpreter/visitor/math.rs:85:9
[INFO] [stderr]     |
[INFO] [stderr] 85  | /         match node.token() {
[INFO] [stderr] 86  | |             &Token::PLUS => Ok(expr as f64),
[INFO] [stderr] 87  | |             &Token::MINUS => Ok(-expr as f64),
[INFO] [stderr] 88  | |             &Token::FACTORIAL => {
[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#match_ref_pats
[INFO] [stderr] help: instead of prefixing all patterns with `&`, you can dereference the expression
[INFO] [stderr]     |
[INFO] [stderr] 85  |         match *node.token() {
[INFO] [stderr] 86  |             Token::PLUS => Ok(expr as f64),
[INFO] [stderr] 87  |             Token::MINUS => Ok(-expr as f64),
[INFO] [stderr] 88  |             Token::FACTORIAL => {
[INFO] [stderr]     |
[INFO] [stderr] 
[INFO] [stderr] warning: this `.fold` can be written more succinctly using another method
[INFO] [stderr]   --> src/flang/interpreter/visitor/math.rs:90:35
[INFO] [stderr]    |
[INFO] [stderr] 90 |                     (1..(val + 1)).fold(1, |acc, value| acc * value)
[INFO] [stderr]    |                                   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try: `.product()`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::unnecessary_fold)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#unnecessary_fold
[INFO] [stderr] 
[INFO] [stderr] warning: an inclusive range would be more readable
[INFO] [stderr]   --> src/flang/interpreter/visitor/math.rs:90:21
[INFO] [stderr]    |
[INFO] [stderr] 90 |                     (1..(val + 1)).fold(1, |acc, value| acc * value)
[INFO] [stderr]    |                     ^^^^^^^^^^^^^^ help: use: `(1..=val)`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::range_plus_one)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#range_plus_one
[INFO] [stderr] 
[INFO] [stderr] warning: you don't need to add `&` to all patterns
[INFO] [stderr]   --> src/flang/interpreter/visitor/statement.rs:14:9
[INFO] [stderr]    |
[INFO] [stderr] 14 | /         match node.token() {
[INFO] [stderr] 15 | |             &Token::LIST => self.visit_list(node),
[INFO] [stderr] 16 | |             &Token::ASSIGN => self.visit_assign(node),
[INFO] [stderr] 17 | |             &Token::FACTORY(_) => self.visit_block(&node.children()[0]),
[INFO] [stderr] ...  |
[INFO] [stderr] 22 | |             )),
[INFO] [stderr] 23 | |         }
[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] 14 |         match *node.token() {
[INFO] [stderr] 15 |             Token::LIST => self.visit_list(node),
[INFO] [stderr] 16 |             Token::ASSIGN => self.visit_assign(node),
[INFO] [stderr] 17 |             Token::FACTORY(_) => self.visit_block(&node.children()[0]),
[INFO] [stderr] 18 |             Token::FUNCTION(_) => self.visit_fn(node),
[INFO] [stderr]    |
[INFO] [stderr] 
[INFO] [stderr] warning: using `clone` on a `Copy` type
[INFO] [stderr]   --> src/flang/interpreter/visitor/statement.rs:28:31
[INFO] [stderr]    |
[INFO] [stderr] 28 |             Some(value) => Ok(value.clone()),
[INFO] [stderr]    |                               ^^^^^^^^^^^^^ help: try dereferencing it: `*value`
[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: you don't need to add `&` to both the expression and the patterns
[INFO] [stderr]   --> src/flang/interpreter/visitor/statement.rs:88:24
[INFO] [stderr]    |
[INFO] [stderr] 88 |           let variable = match &node.children()[0].token().clone() {
[INFO] [stderr]    |  ________________________^
[INFO] [stderr] 89 | |             &Token::ID(ref v) => v.clone(),
[INFO] [stderr] 90 | |             _ => {
[INFO] [stderr] 91 | |                 return Err(ProgramError::of(
[INFO] [stderr] ...  |
[INFO] [stderr] 95 | |             }
[INFO] [stderr] 96 | |         };
[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: try
[INFO] [stderr]    |
[INFO] [stderr] 88 |         let variable = match node.children()[0].token().clone() {
[INFO] [stderr] 89 |             Token::ID(ref v) => v.clone(),
[INFO] [stderr]    |
[INFO] [stderr] 
[INFO] [stderr] warning: you don't need to add `&` to all patterns
[INFO] [stderr]   --> src/flang/interpreter/visitor/mod.rs:17:9
[INFO] [stderr]    |
[INFO] [stderr] 17 | /         match node.token() {
[INFO] [stderr] 18 | |             &Token::LIST |
[INFO] [stderr] 19 | |             &Token::ASSIGN|
[INFO] [stderr] 20 | |             &Token::FACTORY(_) => match self.visit_statement(node) {
[INFO] [stderr] ...  |
[INFO] [stderr] 27 | |             )),
[INFO] [stderr] 28 | |         }
[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] 17 |         match *node.token() {
[INFO] [stderr] 18 |             Token::LIST |
[INFO] [stderr] 19 |             Token::ASSIGN|
[INFO] [stderr] 20 |             Token::FACTORY(_) => match self.visit_statement(node) {
[INFO] [stderr]    |
[INFO] [stderr] 
[INFO] [stderr] warning: this argument is passed by reference, but would be more efficient if passed by value
[INFO] [stderr]   --> src/flang/lexer.rs:65:31
[INFO] [stderr]    |
[INFO] [stderr] 65 |     fn peek_ahead(&self, amt: &usize) -> String {
[INFO] [stderr]    |                               ^^^^^^ help: consider passing by value instead: `usize`
[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: usage of `contains_key` followed by `insert` on a `HashMap`
[INFO] [stderr]   --> src/flang/symbol_table.rs:17:9
[INFO] [stderr]    |
[INFO] [stderr] 17 | /         if !self.table.contains_key(&variable) {
[INFO] [stderr] 18 | |             self.table.insert(variable, value);
[INFO] [stderr] 19 | |         }
[INFO] [stderr]    | |_________^ help: consider using: `self.table.entry(variable).or_insert(value)`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::map_entry)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#map_entry
[INFO] [stderr] 
[INFO] [stderr] error: strict comparison of f32 or f64
[INFO] [stderr]   --> tests/interpreter.rs:35:9
[INFO] [stderr]    |
[INFO] [stderr] 35 |         assert_eq!(*variables.get("a").unwrap(), 10.);
[INFO] [stderr]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[deny(clippy::float_cmp)] on by default
[INFO] [stderr] note: std::f32::EPSILON and std::f64::EPSILON are available.
[INFO] [stderr]   --> tests/interpreter.rs:35:9
[INFO] [stderr]    |
[INFO] [stderr] 35 |         assert_eq!(*variables.get("a").unwrap(), 10.);
[INFO] [stderr]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#float_cmp
[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: aborting due to previous error
[INFO] [stderr] 
[INFO] [stderr] error: Could not compile `flang`.
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: build failed
[INFO] running `"docker" "inspect" "7b719df365b31723675d6bc53b90109a223c589207239dc6aff1190228221021"`
[INFO] running `"docker" "rm" "-f" "7b719df365b31723675d6bc53b90109a223c589207239dc6aff1190228221021"`
[INFO] [stdout] 7b719df365b31723675d6bc53b90109a223c589207239dc6aff1190228221021