[INFO] crate retrobasic 0.1.0 is already in cache
[INFO] extracting crate retrobasic 0.1.0 into work/ex/clippy-test-run/sources/stable/reg/retrobasic/0.1.0
[INFO] extracting crate retrobasic 0.1.0 into work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/reg/retrobasic/0.1.0
[INFO] validating manifest of retrobasic-0.1.0 on toolchain stable
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+stable" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of retrobasic-0.1.0 on toolchain stable+rustflags=-Dclippy::into_iter_on_array
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+stable" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing retrobasic-0.1.0
[INFO] finished frobbing retrobasic-0.1.0
[INFO] frobbed toml for retrobasic-0.1.0 written to work/ex/clippy-test-run/sources/stable/reg/retrobasic/0.1.0/Cargo.toml
[INFO] started frobbing retrobasic-0.1.0
[INFO] finished frobbing retrobasic-0.1.0
[INFO] frobbed toml for retrobasic-0.1.0 written to work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/reg/retrobasic/0.1.0/Cargo.toml
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+stable" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+stable" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+stable" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+stable" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] linting retrobasic-0.1.0 against stable for clippy-test-run
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/clippy-test-run/worker-5/stable:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/clippy-test-run/sources/stable/reg/retrobasic/0.1.0:/opt/crater/workdir:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/opt/crater/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/opt/crater/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/crater/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/crater/cargo-home" "-e" "RUSTUP_HOME=/opt/crater/rustup-home" "-w" "/opt/crater/workdir" "-m" "1536M" "--network" "none" "rustops/crates-build-env" "/opt/crater/cargo-home/bin/cargo" "+stable" "clippy" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] b5034db9367cd8f0e6bb807f2e46ad399502b1efd64360dfc85be594050fa204
[INFO] running `"docker" "start" "-a" "b5034db9367cd8f0e6bb807f2e46ad399502b1efd64360dfc85be594050fa204"`
[INFO] [stderr]     Checking dimsum v0.1.0
[INFO] [stderr]     Checking retrobasic v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: redundant field names in struct initialization
[INFO] [stderr]   --> src/ast.rs:36:13
[INFO] [stderr]    |
[INFO] [stderr] 36 |             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/fetcher.rs:36:19
[INFO] [stderr]    |
[INFO] [stderr] 36 |         Fetcher { sources: sources }
[INFO] [stderr]    |                   ^^^^^^^^^^^^^^^^ help: replace it with: `sources`
[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/interpreter.rs:364:13
[INFO] [stderr]     |
[INFO] [stderr] 364 |             end: end,
[INFO] [stderr]     |             ^^^^^^^^ help: replace it with: `end`
[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/interpreter.rs:365:13
[INFO] [stderr]     |
[INFO] [stderr] 365 |             step: step,
[INFO] [stderr]     |             ^^^^^^^^^^ help: replace it with: `step`
[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/interpreter.rs:367:13
[INFO] [stderr]     |
[INFO] [stderr] 367 |             id: id,
[INFO] [stderr]     |             ^^^^^^ help: replace it with: `id`
[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: using `println!("")`
[INFO] [stderr]    --> src/interpreter.rs:470:13
[INFO] [stderr]     |
[INFO] [stderr] 470 |             println!("");
[INFO] [stderr]     |             ^^^^^^^^^^^^ help: replace it with: `println!()`
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(clippy::println_empty_string)] on by default
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#println_empty_string
[INFO] [stderr] 
[INFO] [stderr] warning: redundant field names in struct initialization
[INFO] [stderr]   --> src/ast.rs:36:13
[INFO] [stderr]    |
[INFO] [stderr] 36 |             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/fetcher.rs:36:19
[INFO] [stderr]    |
[INFO] [stderr] 36 |         Fetcher { sources: sources }
[INFO] [stderr]    |                   ^^^^^^^^^^^^^^^^ help: replace it with: `sources`
[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/interpreter.rs:364:13
[INFO] [stderr]     |
[INFO] [stderr] 364 |             end: end,
[INFO] [stderr]     |             ^^^^^^^^ help: replace it with: `end`
[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/interpreter.rs:365:13
[INFO] [stderr]     |
[INFO] [stderr] 365 |             step: step,
[INFO] [stderr]     |             ^^^^^^^^^^ help: replace it with: `step`
[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/interpreter.rs:367:13
[INFO] [stderr]     |
[INFO] [stderr] 367 |             id: id,
[INFO] [stderr]     |             ^^^^^^ help: replace it with: `id`
[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: using `println!("")`
[INFO] [stderr]    --> src/interpreter.rs:470:13
[INFO] [stderr]     |
[INFO] [stderr] 470 |             println!("");
[INFO] [stderr]     |             ^^^^^^^^^^^^ help: replace it with: `println!()`
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(clippy::println_empty_string)] on by default
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#println_empty_string
[INFO] [stderr] 
[INFO] [stderr] warning: unneeded return statement
[INFO] [stderr]    --> src/parser.rs:642:9
[INFO] [stderr]     |
[INFO] [stderr] 642 |         return Ok(a);
[INFO] [stderr]     |         ^^^^^^^^^^^^^ help: remove `return` as shown: `Ok(a)`
[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/parser.rs:642:9
[INFO] [stderr]     |
[INFO] [stderr] 642 |         return Ok(a);
[INFO] [stderr]     |         ^^^^^^^^^^^^^ help: remove `return` as shown: `Ok(a)`
[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: the loop variable `i` is only used to index `children`.
[INFO] [stderr]   --> src/ast.rs:51:18
[INFO] [stderr]    |
[INFO] [stderr] 51 |         for i in 0..children.len() {
[INFO] [stderr]    |                  ^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::needless_range_loop)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_range_loop
[INFO] [stderr] help: consider using an iterator
[INFO] [stderr]    |
[INFO] [stderr] 51 |         for <item> in &children {
[INFO] [stderr]    |             ^^^^^^    ^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: you seem to be trying to use match for destructuring a single pattern. Consider using `if let`
[INFO] [stderr]   --> src/ast.rs:59:9
[INFO] [stderr]    |
[INFO] [stderr] 59 | /         match child {
[INFO] [stderr] 60 | |             Some(c) => self.children.push(c.clone()),
[INFO] [stderr] 61 | |             None => (),
[INFO] [stderr] 62 | |         }
[INFO] [stderr]    | |_________^ help: try this: `if let Some(c) = child { self.children.push(c.clone()) }`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::single_match)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#single_match
[INFO] [stderr] 
[INFO] [stderr] warning: using `clone` on a `Copy` type
[INFO] [stderr]   --> src/ast.rs:72:23
[INFO] [stderr]    |
[INFO] [stderr] 72 |             line_num: self.line_num.clone(),
[INFO] [stderr]    |                       ^^^^^^^^^^^^^^^^^^^^^ help: try removing the `clone` call: `self.line_num`
[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 all patterns
[INFO] [stderr]   --> src/error.rs:15:9
[INFO] [stderr]    |
[INFO] [stderr] 15 | /         match self {
[INFO] [stderr] 16 | |             &Error::SyntaxError(l, ref e) => write!(f, "SYNTAX ERROR AT LINE {}: {}", l, e),
[INFO] [stderr] 17 | |             &Error::RuntimeError(l, ref e) => write!(f, "RUNTIME ERROR AT LINE {}: {}", l, e),
[INFO] [stderr] 18 | |         }
[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 *self {
[INFO] [stderr] 16 |             Error::SyntaxError(l, ref e) => write!(f, "SYNTAX ERROR AT LINE {}: {}", l, e),
[INFO] [stderr] 17 |             Error::RuntimeError(l, ref e) => write!(f, "RUNTIME ERROR AT LINE {}: {}", l, e),
[INFO] [stderr]    |
[INFO] [stderr] 
[INFO] [stderr] warning: you don't need to add `&` to all patterns
[INFO] [stderr]   --> src/error.rs:24:9
[INFO] [stderr]    |
[INFO] [stderr] 24 | /         match self {
[INFO] [stderr] 25 | |             &Error::SyntaxError(_, _) => "Syntax Error",
[INFO] [stderr] 26 | |             &Error::RuntimeError(_, _) => "Runtime Error",
[INFO] [stderr] 27 | |         }
[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] 24 |         match *self {
[INFO] [stderr] 25 |             Error::SyntaxError(_, _) => "Syntax Error",
[INFO] [stderr] 26 |             Error::RuntimeError(_, _) => "Runtime Error",
[INFO] [stderr]    |
[INFO] [stderr] 
[INFO] [stderr] warning: useless use of `format!`
[INFO] [stderr]   --> src/interpreter.rs:22:31
[INFO] [stderr]    |
[INFO] [stderr] 22 |             MV::Str(ref s) => format!("{}", s),
[INFO] [stderr]    |                               ^^^^^^^^^^^^^^^^ help: consider using .to_string(): `s.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] warning: manual implementation of an assign operation
[INFO] [stderr]    --> src/interpreter.rs:172:13
[INFO] [stderr]     |
[INFO] [stderr] 172 |             self.curr_data = self.curr_data + 1;
[INFO] [stderr]     |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: replace it with: `self.curr_data += 1`
[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: writing `&Vec<_>` instead of `&[_]` involves one more reference and cannot be used with non-Vec-based slices.
[INFO] [stderr]    --> src/interpreter.rs:199:35
[INFO] [stderr]     |
[INFO] [stderr] 199 |     fn into_dim(&mut self, nodes: &Vec<AST>) -> Result<Vec<usize>> {
[INFO] [stderr]     |                                   ^^^^^^^^^ help: change this to: `&[AST]`
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(clippy::ptr_arg)] on by default
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#ptr_arg
[INFO] [stderr] 
[INFO] [stderr] warning: methods called `into_*` usually take self by value; consider choosing a less ambiguous name
[INFO] [stderr]    --> src/interpreter.rs:199:17
[INFO] [stderr]     |
[INFO] [stderr] 199 |     fn into_dim(&mut self, nodes: &Vec<AST>) -> Result<Vec<usize>> {
[INFO] [stderr]     |                 ^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(clippy::wrong_self_convention)] on by default
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#wrong_self_convention
[INFO] [stderr] 
[INFO] [stderr] warning: writing `&Vec<_>` instead of `&[_]` involves one more reference and cannot be used with non-Vec-based slices.
[INFO] [stderr]    --> src/interpreter.rs:206:35
[INFO] [stderr]     |
[INFO] [stderr] 206 |     fn exec_dim(&mut self, nodes: &Vec<AST>) -> Result<Execute> {
[INFO] [stderr]     |                                   ^^^^^^^^^ help: change this to: `&[AST]`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#ptr_arg
[INFO] [stderr] 
[INFO] [stderr] warning: the loop variable `i` is only used to index `nodes`.
[INFO] [stderr]    --> src/interpreter.rs:207:18
[INFO] [stderr]     |
[INFO] [stderr] 207 |         for i in 0..nodes.len() {
[INFO] [stderr]     |                  ^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_range_loop
[INFO] [stderr] help: consider using an iterator
[INFO] [stderr]     |
[INFO] [stderr] 207 |         for <item> in &nodes {
[INFO] [stderr]     |             ^^^^^^    ^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: single-character string constant used as pattern
[INFO] [stderr]    --> src/interpreter.rs:210:37
[INFO] [stderr]     |
[INFO] [stderr] 210 |             let mv = if id.contains("$") {
[INFO] [stderr]     |                                     ^^^ help: try using a char instead: `'$'`
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(clippy::single_char_pattern)] on by default
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#single_char_pattern
[INFO] [stderr] 
[INFO] [stderr] warning: writing `&Vec<_>` instead of `&[_]` involves one more reference and cannot be used with non-Vec-based slices.
[INFO] [stderr]    --> src/interpreter.rs:231:37
[INFO] [stderr]     |
[INFO] [stderr] 231 |     fn exec_input(&mut self, nodes: &Vec<AST>) -> Result<Execute> {
[INFO] [stderr]     |                                     ^^^^^^^^^ help: change this to: `&[AST]`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#ptr_arg
[INFO] [stderr] 
[INFO] [stderr] warning: single-character string constant used as pattern
[INFO] [stderr]    --> src/interpreter.rs:246:47
[INFO] [stderr]     |
[INFO] [stderr] 246 |             let split: Vec<&str> = line.split(",").collect();
[INFO] [stderr]     |                                               ^^^ help: try using a char instead: `','`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#single_char_pattern
[INFO] [stderr] 
[INFO] [stderr] warning: you seem to be trying to use match for destructuring a single pattern. Consider using `if let`
[INFO] [stderr]    --> src/interpreter.rs:256:17
[INFO] [stderr]     |
[INFO] [stderr] 256 | /                 match nodes[i + start].token.val {
[INFO] [stderr] 257 | |                     Some(ref s) => {
[INFO] [stderr] 258 | |                         if s.contains("$") {
[INFO] [stderr] 259 | |                             let val = MV::Str(split[i].trim().to_string().to_uppercase());
[INFO] [stderr] ...   |
[INFO] [stderr] 274 | |                     None => (),
[INFO] [stderr] 275 | |                 }
[INFO] [stderr]     | |_________________^
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#single_match
[INFO] [stderr] help: try this
[INFO] [stderr]     |
[INFO] [stderr] 256 |                 if let Some(ref s) = nodes[i + start].token.val {
[INFO] [stderr] 257 |     if s.contains("$") {
[INFO] [stderr] 258 |         let val = MV::Str(split[i].trim().to_string().to_uppercase());
[INFO] [stderr] 259 |         self.do_assign(&nodes[i + start], val)?;
[INFO] [stderr] 260 |     } else {
[INFO] [stderr] 261 |         match split[i].trim().parse::<f32>() {
[INFO] [stderr]   ...
[INFO] [stderr] 
[INFO] [stderr] warning: single-character string constant used as pattern
[INFO] [stderr]    --> src/interpreter.rs:258:39
[INFO] [stderr]     |
[INFO] [stderr] 258 |                         if s.contains("$") {
[INFO] [stderr]     |                                       ^^^ help: try using a char instead: `'$'`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#single_char_pattern
[INFO] [stderr] 
[INFO] [stderr] warning: single-character string constant used as pattern
[INFO] [stderr]    --> src/interpreter.rs:308:45
[INFO] [stderr]     |
[INFO] [stderr] 308 |                 let mv_def = if id.contains("$") {
[INFO] [stderr]     |                                             ^^^ help: try using a char instead: `'$'`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#single_char_pattern
[INFO] [stderr] 
[INFO] [stderr] warning: the loop variable `i` is only used to index `children`.
[INFO] [stderr]   --> src/ast.rs:51:18
[INFO] [stderr]    |
[INFO] [stderr] 51 |         for i in 0..children.len() {
[INFO] [stderr]    |                  ^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::needless_range_loop)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_range_loop
[INFO] [stderr] help: consider using an iterator
[INFO] [stderr]    |
[INFO] [stderr] 51 |         for <item> in &children {
[INFO] [stderr]    |             ^^^^^^    ^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: you seem to be trying to use match for destructuring a single pattern. Consider using `if let`
[INFO] [stderr]   --> src/ast.rs:59:9
[INFO] [stderr]    |
[INFO] [stderr] 59 | /         match child {
[INFO] [stderr] 60 | |             Some(c) => self.children.push(c.clone()),
[INFO] [stderr] 61 | |             None => (),
[INFO] [stderr] 62 | |         }
[INFO] [stderr]    | |_________^ help: try this: `if let Some(c) = child { self.children.push(c.clone()) }`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::single_match)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#single_match
[INFO] [stderr] 
[INFO] [stderr] warning: using `clone` on a `Copy` type
[INFO] [stderr]   --> src/ast.rs:72:23
[INFO] [stderr]    |
[INFO] [stderr] 72 |             line_num: self.line_num.clone(),
[INFO] [stderr]    |                       ^^^^^^^^^^^^^^^^^^^^^ help: try removing the `clone` call: `self.line_num`
[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: writing `&Vec<_>` instead of `&[_]` involves one more reference and cannot be used with non-Vec-based slices.
[INFO] [stderr]    --> src/interpreter.rs:400:36
[INFO] [stderr]     |
[INFO] [stderr] 400 |     fn exec_next(&mut self, nodes: &Vec<AST>) -> Result<Execute> {
[INFO] [stderr]     |                                    ^^^^^^^^^ help: change this to: `&[AST]`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#ptr_arg
[INFO] [stderr] 
[INFO] [stderr] warning: you don't need to add `&` to all patterns
[INFO] [stderr]   --> src/error.rs:15:9
[INFO] [stderr]    |
[INFO] [stderr] 15 | /         match self {
[INFO] [stderr] 16 | |             &Error::SyntaxError(l, ref e) => write!(f, "SYNTAX ERROR AT LINE {}: {}", l, e),
[INFO] [stderr] 17 | |             &Error::RuntimeError(l, ref e) => write!(f, "RUNTIME ERROR AT LINE {}: {}", l, e),
[INFO] [stderr] 18 | |         }
[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 *self {
[INFO] [stderr] 16 |             Error::SyntaxError(l, ref e) => write!(f, "SYNTAX ERROR AT LINE {}: {}", l, e),
[INFO] [stderr] 17 |             Error::RuntimeError(l, ref e) => write!(f, "RUNTIME ERROR AT LINE {}: {}", l, e),
[INFO] [stderr]    |
[INFO] [stderr] 
[INFO] [stderr] warning: you don't need to add `&` to all patterns
[INFO] [stderr]   --> src/error.rs:24:9
[INFO] [stderr]    |
[INFO] [stderr] 24 | /         match self {
[INFO] [stderr] 25 | |             &Error::SyntaxError(_, _) => "Syntax Error",
[INFO] [stderr] 26 | |             &Error::RuntimeError(_, _) => "Runtime Error",
[INFO] [stderr] 27 | |         }
[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] 24 |         match *self {
[INFO] [stderr] 25 |             Error::SyntaxError(_, _) => "Syntax Error",
[INFO] [stderr] 26 |             Error::RuntimeError(_, _) => "Runtime Error",
[INFO] [stderr]    |
[INFO] [stderr] 
[INFO] [stderr] warning: manual implementation of an assign operation
[INFO] [stderr]    --> src/interpreter.rs:435:21
[INFO] [stderr]     |
[INFO] [stderr] 435 |                     curr_idx = curr_idx + 1;
[INFO] [stderr]     |                     ^^^^^^^^^^^^^^^^^^^^^^^ help: replace it with: `curr_idx += 1`
[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: writing `&Vec<_>` instead of `&[_]` involves one more reference and cannot be used with non-Vec-based slices.
[INFO] [stderr]    --> src/interpreter.rs:448:37
[INFO] [stderr]     |
[INFO] [stderr] 448 |     fn exec_print(&mut self, nodes: &Vec<AST>) -> Result<Execute> {
[INFO] [stderr]     |                                     ^^^^^^^^^ help: change this to: `&[AST]`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#ptr_arg
[INFO] [stderr] 
[INFO] [stderr] warning: the loop variable `i` is only used to index `nodes`.
[INFO] [stderr]    --> src/interpreter.rs:450:18
[INFO] [stderr]     |
[INFO] [stderr] 450 |         for i in 0..nodes.len() as usize {
[INFO] [stderr]     |                  ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_range_loop
[INFO] [stderr] help: consider using an iterator
[INFO] [stderr]     |
[INFO] [stderr] 450 |         for <item> in nodes.iter().take(nodes.len() as usize) {
[INFO] [stderr]     |             ^^^^^^    ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: called `.get().unwrap()` on a HashMap. Using `[]` is more clear and more concise
[INFO] [stderr]    --> src/interpreter.rs:555:22
[INFO] [stderr]     |
[INFO] [stderr] 555 |         let fn_def = self.fn_defs.get(&fn_id).unwrap().clone();
[INFO] [stderr]     |                      ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try this: `&self.fn_defs[&fn_id]`
[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: single-character string constant used as pattern
[INFO] [stderr]    --> src/interpreter.rs:591:32
[INFO] [stderr]     |
[INFO] [stderr] 591 |                 if id.contains("$") {
[INFO] [stderr]     |                                ^^^ help: try using a char instead: `'$'`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#single_char_pattern
[INFO] [stderr] 
[INFO] [stderr] warning: casting u8 to f32 may become silently lossy if types change
[INFO] [stderr]    --> src/interpreter.rs:605:20
[INFO] [stderr]     |
[INFO] [stderr] 605 |         Ok(MV::Num(self.eval(ast)?.to_str().as_bytes()[0] as f32))
[INFO] [stderr]     |                    ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try: `f32::from(self.eval(ast)?.to_str().as_bytes()[0])`
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(clippy::cast_lossless)] on by default
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#cast_lossless
[INFO] [stderr] 
[INFO] [stderr] warning: useless use of `format!`
[INFO] [stderr]   --> src/interpreter.rs:22:31
[INFO] [stderr]    |
[INFO] [stderr] 22 |             MV::Str(ref s) => format!("{}", s),
[INFO] [stderr]    |                               ^^^^^^^^^^^^^^^^ help: consider using .to_string(): `s.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] warning: manual implementation of an assign operation
[INFO] [stderr]    --> src/interpreter.rs:172:13
[INFO] [stderr]     |
[INFO] [stderr] 172 |             self.curr_data = self.curr_data + 1;
[INFO] [stderr]     |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: replace it with: `self.curr_data += 1`
[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: writing `&Vec<_>` instead of `&[_]` involves one more reference and cannot be used with non-Vec-based slices.
[INFO] [stderr]    --> src/interpreter.rs:199:35
[INFO] [stderr]     |
[INFO] [stderr] 199 |     fn into_dim(&mut self, nodes: &Vec<AST>) -> Result<Vec<usize>> {
[INFO] [stderr]     |                                   ^^^^^^^^^ help: change this to: `&[AST]`
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(clippy::ptr_arg)] on by default
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#ptr_arg
[INFO] [stderr] 
[INFO] [stderr] warning: methods called `into_*` usually take self by value; consider choosing a less ambiguous name
[INFO] [stderr]    --> src/interpreter.rs:199:17
[INFO] [stderr]     |
[INFO] [stderr] 199 |     fn into_dim(&mut self, nodes: &Vec<AST>) -> Result<Vec<usize>> {
[INFO] [stderr]     |                 ^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(clippy::wrong_self_convention)] on by default
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#wrong_self_convention
[INFO] [stderr] 
[INFO] [stderr] warning: writing `&Vec<_>` instead of `&[_]` involves one more reference and cannot be used with non-Vec-based slices.
[INFO] [stderr]    --> src/interpreter.rs:206:35
[INFO] [stderr]     |
[INFO] [stderr] 206 |     fn exec_dim(&mut self, nodes: &Vec<AST>) -> Result<Execute> {
[INFO] [stderr]     |                                   ^^^^^^^^^ help: change this to: `&[AST]`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#ptr_arg
[INFO] [stderr] 
[INFO] [stderr] warning: the loop variable `i` is only used to index `nodes`.
[INFO] [stderr]    --> src/interpreter.rs:207:18
[INFO] [stderr]     |
[INFO] [stderr] 207 |         for i in 0..nodes.len() {
[INFO] [stderr]     |                  ^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_range_loop
[INFO] [stderr] help: consider using an iterator
[INFO] [stderr]     |
[INFO] [stderr] 207 |         for <item> in &nodes {
[INFO] [stderr]     |             ^^^^^^    ^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: single-character string constant used as pattern
[INFO] [stderr]    --> src/interpreter.rs:210:37
[INFO] [stderr]     |
[INFO] [stderr] 210 |             let mv = if id.contains("$") {
[INFO] [stderr]     |                                     ^^^ help: try using a char instead: `'$'`
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(clippy::single_char_pattern)] on by default
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#single_char_pattern
[INFO] [stderr] 
[INFO] [stderr] warning: writing `&Vec<_>` instead of `&[_]` involves one more reference and cannot be used with non-Vec-based slices.
[INFO] [stderr]    --> src/interpreter.rs:231:37
[INFO] [stderr]     |
[INFO] [stderr] 231 |     fn exec_input(&mut self, nodes: &Vec<AST>) -> Result<Execute> {
[INFO] [stderr]     |                                     ^^^^^^^^^ help: change this to: `&[AST]`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#ptr_arg
[INFO] [stderr] 
[INFO] [stderr] warning: single-character string constant used as pattern
[INFO] [stderr]    --> src/interpreter.rs:246:47
[INFO] [stderr]     |
[INFO] [stderr] 246 |             let split: Vec<&str> = line.split(",").collect();
[INFO] [stderr]     |                                               ^^^ help: try using a char instead: `','`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#single_char_pattern
[INFO] [stderr] 
[INFO] [stderr] warning: you seem to be trying to use match for destructuring a single pattern. Consider using `if let`
[INFO] [stderr]    --> src/interpreter.rs:256:17
[INFO] [stderr]     |
[INFO] [stderr] 256 | /                 match nodes[i + start].token.val {
[INFO] [stderr] 257 | |                     Some(ref s) => {
[INFO] [stderr] 258 | |                         if s.contains("$") {
[INFO] [stderr] 259 | |                             let val = MV::Str(split[i].trim().to_string().to_uppercase());
[INFO] [stderr] ...   |
[INFO] [stderr] 274 | |                     None => (),
[INFO] [stderr] 275 | |                 }
[INFO] [stderr]     | |_________________^
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#single_match
[INFO] [stderr] help: try this
[INFO] [stderr]     |
[INFO] [stderr] 256 |                 if let Some(ref s) = nodes[i + start].token.val {
[INFO] [stderr] 257 |     if s.contains("$") {
[INFO] [stderr] 258 |         let val = MV::Str(split[i].trim().to_string().to_uppercase());
[INFO] [stderr] 259 |         self.do_assign(&nodes[i + start], val)?;
[INFO] [stderr] 260 |     } else {
[INFO] [stderr] 261 |         match split[i].trim().parse::<f32>() {
[INFO] [stderr]   ...
[INFO] [stderr] 
[INFO] [stderr] warning: single-character string constant used as pattern
[INFO] [stderr]    --> src/interpreter.rs:258:39
[INFO] [stderr]     |
[INFO] [stderr] 258 |                         if s.contains("$") {
[INFO] [stderr]     |                                       ^^^ help: try using a char instead: `'$'`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#single_char_pattern
[INFO] [stderr] 
[INFO] [stderr] warning: single-character string constant used as pattern
[INFO] [stderr]    --> src/interpreter.rs:308:45
[INFO] [stderr]     |
[INFO] [stderr] 308 |                 let mv_def = if id.contains("$") {
[INFO] [stderr]     |                                             ^^^ help: try using a char instead: `'$'`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#single_char_pattern
[INFO] [stderr] 
[INFO] [stderr] warning: you seem to be trying to use match for destructuring a single pattern. Consider using `if let`
[INFO] [stderr]    --> src/interpreter.rs:860:13
[INFO] [stderr]     |
[INFO] [stderr] 860 | /             match ast.children[i].line_num {
[INFO] [stderr] 861 | |                 Some(n) => {
[INFO] [stderr] 862 | |                     target_map.insert(n, i as u32);
[INFO] [stderr] 863 | |                 }
[INFO] [stderr] 864 | |                 None => (),
[INFO] [stderr] 865 | |             }
[INFO] [stderr]     | |_____________^
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#single_match
[INFO] [stderr] help: try this
[INFO] [stderr]     |
[INFO] [stderr] 860 |             if let Some(n) = ast.children[i].line_num {
[INFO] [stderr] 861 |     target_map.insert(n, i as u32);
[INFO] [stderr] 862 | }
[INFO] [stderr]     |
[INFO] [stderr] 
[INFO] [stderr] warning: manual implementation of an assign operation
[INFO] [stderr]    --> src/interpreter.rs:880:34
[INFO] [stderr]     |
[INFO] [stderr] 880 |                 Execute::Next => curr = curr + 1,
[INFO] [stderr]     |                                  ^^^^^^^^^^^^^^^ help: replace it with: `curr += 1`
[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/interpreter.rs:882:21
[INFO] [stderr]     |
[INFO] [stderr] 882 |                     curr = curr + 1;
[INFO] [stderr]     |                     ^^^^^^^^^^^^^^^ help: replace it with: `curr += 1`
[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: you seem to be trying to use match for destructuring a single pattern. Consider using `if let`
[INFO] [stderr]    --> src/interpreter.rs:883:21
[INFO] [stderr]     |
[INFO] [stderr] 883 | /                     match ast.children[curr].line_num {
[INFO] [stderr] 884 | |                         Some(_) => break,
[INFO] [stderr] 885 | |                         None => (),
[INFO] [stderr] 886 | |                     }
[INFO] [stderr]     | |_____________________^ help: try this: `if let Some(_) = ast.children[curr].line_num { break }`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#single_match
[INFO] [stderr] 
[INFO] [stderr] warning: called `.get().unwrap()` on a HashMap. Using `[]` is more clear and more concise
[INFO] [stderr]    --> src/interpreter.rs:890:30
[INFO] [stderr]     |
[INFO] [stderr] 890 |                     let ix = target_map.get(&n).unwrap();
[INFO] [stderr]     |                              ^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try this: `&target_map[&n]`
[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: length comparison to zero
[INFO] [stderr]   --> src/lexer.rs:46:12
[INFO] [stderr]    |
[INFO] [stderr] 46 |         if l.buf.len() > 0 {
[INFO] [stderr]    |            ^^^^^^^^^^^^^^^ help: using `is_empty` is clearer and more explicit: `!l.buf.is_empty()`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::len_zero)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#len_zero
[INFO] [stderr] 
[INFO] [stderr] warning: manual implementation of an assign operation
[INFO] [stderr]   --> src/lexer.rs:53:9
[INFO] [stderr]    |
[INFO] [stderr] 53 |         self.curr = self.curr + 1;
[INFO] [stderr]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^ help: replace it with: `self.curr += 1`
[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: writing `&Vec<_>` instead of `&[_]` involves one more reference and cannot be used with non-Vec-based slices.
[INFO] [stderr]    --> src/interpreter.rs:400:36
[INFO] [stderr]     |
[INFO] [stderr] 400 |     fn exec_next(&mut self, nodes: &Vec<AST>) -> Result<Execute> {
[INFO] [stderr]     |                                    ^^^^^^^^^ help: change this to: `&[AST]`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#ptr_arg
[INFO] [stderr] 
[INFO] [stderr] warning: manual implementation of an assign operation
[INFO] [stderr]    --> src/interpreter.rs:435:21
[INFO] [stderr]     |
[INFO] [stderr] 435 |                     curr_idx = curr_idx + 1;
[INFO] [stderr]     |                     ^^^^^^^^^^^^^^^^^^^^^^^ help: replace it with: `curr_idx += 1`
[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: writing `&Vec<_>` instead of `&[_]` involves one more reference and cannot be used with non-Vec-based slices.
[INFO] [stderr]    --> src/interpreter.rs:448:37
[INFO] [stderr]     |
[INFO] [stderr] 448 |     fn exec_print(&mut self, nodes: &Vec<AST>) -> Result<Execute> {
[INFO] [stderr]     |                                     ^^^^^^^^^ help: change this to: `&[AST]`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#ptr_arg
[INFO] [stderr] 
[INFO] [stderr] warning: the loop variable `i` is only used to index `nodes`.
[INFO] [stderr]    --> src/interpreter.rs:450:18
[INFO] [stderr]     |
[INFO] [stderr] 450 |         for i in 0..nodes.len() as usize {
[INFO] [stderr]     |                  ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_range_loop
[INFO] [stderr] help: consider using an iterator
[INFO] [stderr]     |
[INFO] [stderr] 450 |         for <item> in nodes.iter().take(nodes.len() as usize) {
[INFO] [stderr]     |             ^^^^^^    ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: you seem to be trying to use match for destructuring a single pattern. Consider using `if let`
[INFO] [stderr]   --> src/parser.rs:79:9
[INFO] [stderr]    |
[INFO] [stderr] 79 | /         match tid {
[INFO] [stderr] 80 | |             TID::LBRK => {
[INFO] [stderr] 81 | |                 self.consume();
[INFO] [stderr] 82 | |                 a.token.id = TID::MDID;
[INFO] [stderr] ...  |
[INFO] [stderr] 86 | |             _ => (),
[INFO] [stderr] 87 | |         }
[INFO] [stderr]    | |_________^
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#single_match
[INFO] [stderr] help: try this
[INFO] [stderr]    |
[INFO] [stderr] 79 |         if let TID::LBRK = tid {
[INFO] [stderr] 80 |     self.consume();
[INFO] [stderr] 81 |     a.token.id = TID::MDID;
[INFO] [stderr] 82 |     a.add_children(self.parse_expression_list()?);
[INFO] [stderr] 83 |     self.match_token(TID::RBRK)?;
[INFO] [stderr] 84 | }
[INFO] [stderr]    |
[INFO] [stderr] 
[INFO] [stderr] warning: called `.get().unwrap()` on a HashMap. Using `[]` is more clear and more concise
[INFO] [stderr]    --> src/interpreter.rs:555:22
[INFO] [stderr]     |
[INFO] [stderr] 555 |         let fn_def = self.fn_defs.get(&fn_id).unwrap().clone();
[INFO] [stderr]     |                      ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try this: `&self.fn_defs[&fn_id]`
[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: single-character string constant used as pattern
[INFO] [stderr]    --> src/interpreter.rs:591:32
[INFO] [stderr]     |
[INFO] [stderr] 591 |                 if id.contains("$") {
[INFO] [stderr]     |                                ^^^ help: try using a char instead: `'$'`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#single_char_pattern
[INFO] [stderr] 
[INFO] [stderr] warning: casting u8 to f32 may become silently lossy if types change
[INFO] [stderr]    --> src/interpreter.rs:605:20
[INFO] [stderr]     |
[INFO] [stderr] 605 |         Ok(MV::Num(self.eval(ast)?.to_str().as_bytes()[0] as f32))
[INFO] [stderr]     |                    ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try: `f32::from(self.eval(ast)?.to_str().as_bytes()[0])`
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(clippy::cast_lossless)] on by default
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#cast_lossless
[INFO] [stderr] 
[INFO] [stderr] warning: you seem to be trying to use match for destructuring a single pattern. Consider using `if let`
[INFO] [stderr]    --> src/interpreter.rs:860:13
[INFO] [stderr]     |
[INFO] [stderr] 860 | /             match ast.children[i].line_num {
[INFO] [stderr] 861 | |                 Some(n) => {
[INFO] [stderr] 862 | |                     target_map.insert(n, i as u32);
[INFO] [stderr] 863 | |                 }
[INFO] [stderr] 864 | |                 None => (),
[INFO] [stderr] 865 | |             }
[INFO] [stderr]     | |_____________^
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#single_match
[INFO] [stderr] help: try this
[INFO] [stderr]     |
[INFO] [stderr] 860 |             if let Some(n) = ast.children[i].line_num {
[INFO] [stderr] 861 |     target_map.insert(n, i as u32);
[INFO] [stderr] 862 | }
[INFO] [stderr]     |
[INFO] [stderr] 
[INFO] [stderr] warning: manual implementation of an assign operation
[INFO] [stderr]    --> src/interpreter.rs:880:34
[INFO] [stderr]     |
[INFO] [stderr] 880 |                 Execute::Next => curr = curr + 1,
[INFO] [stderr]     |                                  ^^^^^^^^^^^^^^^ help: replace it with: `curr += 1`
[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/interpreter.rs:882:21
[INFO] [stderr]     |
[INFO] [stderr] 882 |                     curr = curr + 1;
[INFO] [stderr]     |                     ^^^^^^^^^^^^^^^ help: replace it with: `curr += 1`
[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: you seem to be trying to use match for destructuring a single pattern. Consider using `if let`
[INFO] [stderr]    --> src/interpreter.rs:883:21
[INFO] [stderr]     |
[INFO] [stderr] 883 | /                     match ast.children[curr].line_num {
[INFO] [stderr] 884 | |                         Some(_) => break,
[INFO] [stderr] 885 | |                         None => (),
[INFO] [stderr] 886 | |                     }
[INFO] [stderr]     | |_____________________^ help: try this: `if let Some(_) = ast.children[curr].line_num { break }`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#single_match
[INFO] [stderr] 
[INFO] [stderr] warning: called `.get().unwrap()` on a HashMap. Using `[]` is more clear and more concise
[INFO] [stderr]    --> src/interpreter.rs:890:30
[INFO] [stderr]     |
[INFO] [stderr] 890 |                     let ix = target_map.get(&n).unwrap();
[INFO] [stderr]     |                              ^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try this: `&target_map[&n]`
[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: length comparison to zero
[INFO] [stderr]   --> src/lexer.rs:46:12
[INFO] [stderr]    |
[INFO] [stderr] 46 |         if l.buf.len() > 0 {
[INFO] [stderr]    |            ^^^^^^^^^^^^^^^ help: using `is_empty` is clearer and more explicit: `!l.buf.is_empty()`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::len_zero)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#len_zero
[INFO] [stderr] 
[INFO] [stderr] warning: manual implementation of an assign operation
[INFO] [stderr]   --> src/lexer.rs:53:9
[INFO] [stderr]    |
[INFO] [stderr] 53 |         self.curr = self.curr + 1;
[INFO] [stderr]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^ help: replace it with: `self.curr += 1`
[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: you seem to be trying to use match for destructuring a single pattern. Consider using `if let`
[INFO] [stderr]    --> src/main.rs:96:9
[INFO] [stderr]     |
[INFO] [stderr] 96  | /         match file.read_to_string(&mut b) {
[INFO] [stderr] 97  | |             Err(why) => {
[INFO] [stderr] 98  | |                 println!("couldn't read {}: {}", filename, why.description());
[INFO] [stderr] 99  | |                 std::process::exit(1);
[INFO] [stderr] 100 | |             }
[INFO] [stderr] 101 | |             Ok(_) => {}
[INFO] [stderr] 102 | |         };
[INFO] [stderr]     | |_________^
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#single_match
[INFO] [stderr] help: try this
[INFO] [stderr]     |
[INFO] [stderr] 96  |         if let Err(why) = file.read_to_string(&mut b) {
[INFO] [stderr] 97  |     println!("couldn't read {}: {}", filename, why.description());
[INFO] [stderr] 98  |     std::process::exit(1);
[INFO] [stderr] 99  | };
[INFO] [stderr]     |
[INFO] [stderr] 
[INFO] [stderr] warning: you seem to be trying to use match for destructuring a single pattern. Consider using `if let`
[INFO] [stderr]   --> src/parser.rs:79:9
[INFO] [stderr]    |
[INFO] [stderr] 79 | /         match tid {
[INFO] [stderr] 80 | |             TID::LBRK => {
[INFO] [stderr] 81 | |                 self.consume();
[INFO] [stderr] 82 | |                 a.token.id = TID::MDID;
[INFO] [stderr] ...  |
[INFO] [stderr] 86 | |             _ => (),
[INFO] [stderr] 87 | |         }
[INFO] [stderr]    | |_________^
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#single_match
[INFO] [stderr] help: try this
[INFO] [stderr]    |
[INFO] [stderr] 79 |         if let TID::LBRK = tid {
[INFO] [stderr] 80 |     self.consume();
[INFO] [stderr] 81 |     a.token.id = TID::MDID;
[INFO] [stderr] 82 |     a.add_children(self.parse_expression_list()?);
[INFO] [stderr] 83 |     self.match_token(TID::RBRK)?;
[INFO] [stderr] 84 | }
[INFO] [stderr]    |
[INFO] [stderr] 
[INFO] [stderr] warning: you seem to be trying to use match for destructuring a single pattern. Consider using `if let`
[INFO] [stderr]    --> src/main.rs:96:9
[INFO] [stderr]     |
[INFO] [stderr] 96  | /         match file.read_to_string(&mut b) {
[INFO] [stderr] 97  | |             Err(why) => {
[INFO] [stderr] 98  | |                 println!("couldn't read {}: {}", filename, why.description());
[INFO] [stderr] 99  | |                 std::process::exit(1);
[INFO] [stderr] 100 | |             }
[INFO] [stderr] 101 | |             Ok(_) => {}
[INFO] [stderr] 102 | |         };
[INFO] [stderr]     | |_________^
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#single_match
[INFO] [stderr] help: try this
[INFO] [stderr]     |
[INFO] [stderr] 96  |         if let Err(why) = file.read_to_string(&mut b) {
[INFO] [stderr] 97  |     println!("couldn't read {}: {}", filename, why.description());
[INFO] [stderr] 98  |     std::process::exit(1);
[INFO] [stderr] 99  | };
[INFO] [stderr]     |
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 9.07s
[INFO] running `"docker" "inspect" "b5034db9367cd8f0e6bb807f2e46ad399502b1efd64360dfc85be594050fa204"`
[INFO] running `"docker" "rm" "-f" "b5034db9367cd8f0e6bb807f2e46ad399502b1efd64360dfc85be594050fa204"`
[INFO] [stdout] b5034db9367cd8f0e6bb807f2e46ad399502b1efd64360dfc85be594050fa204