[INFO] updating cached repository memoryleak47/constraint-lang
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/memoryleak47/constraint-lang
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/memoryleak47/constraint-lang" "work/ex/clippy-test-run/sources/stable/gh/memoryleak47/constraint-lang"`
[INFO] [stderr] Cloning into 'work/ex/clippy-test-run/sources/stable/gh/memoryleak47/constraint-lang'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/memoryleak47/constraint-lang" "work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/gh/memoryleak47/constraint-lang"`
[INFO] [stderr] Cloning into 'work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/gh/memoryleak47/constraint-lang'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 7e41273373d8ed4f48e33e768eec95f58b0206b1
[INFO] sha for GitHub repo memoryleak47/constraint-lang: 7e41273373d8ed4f48e33e768eec95f58b0206b1
[INFO] validating manifest of memoryleak47/constraint-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 memoryleak47/constraint-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 memoryleak47/constraint-lang
[INFO] finished frobbing memoryleak47/constraint-lang
[INFO] frobbed toml for memoryleak47/constraint-lang written to work/ex/clippy-test-run/sources/stable/gh/memoryleak47/constraint-lang/Cargo.toml
[INFO] started frobbing memoryleak47/constraint-lang
[INFO] finished frobbing memoryleak47/constraint-lang
[INFO] frobbed toml for memoryleak47/constraint-lang written to work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/gh/memoryleak47/constraint-lang/Cargo.toml
[INFO] crate memoryleak47/constraint-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 memoryleak47/constraint-lang against stable for clippy-test-run
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/clippy-test-run/worker-2/stable:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/clippy-test-run/sources/stable/gh/memoryleak47/constraint-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] 3449aceea1a6f3130e2e444d0286fd83772c87b62f4e83872bed910de156be98
[INFO] running `"docker" "start" "-a" "3449aceea1a6f3130e2e444d0286fd83772c87b62f4e83872bed910de156be98"`
[INFO] [stderr]     Checking libc v0.2.39
[INFO] [stderr]     Checking memchr v1.0.2
[INFO] [stderr]     Checking nom v3.2.1
[INFO] [stderr]     Checking productivity-lang-compiler v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: unneeded return statement
[INFO] [stderr]   --> src/ast/parse/name.rs:12:2
[INFO] [stderr]    |
[INFO] [stderr] 12 |     return IResult::Error(ErrorKind::Custom(42));
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove `return` as shown: `IResult::Error(ErrorKind::Custom(42))`
[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/ast/parse/name.rs:23:2
[INFO] [stderr]    |
[INFO] [stderr] 23 |     return IResult::Error(ErrorKind::Custom(42));
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove `return` as shown: `IResult::Error(ErrorKind::Custom(42))`
[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/ast/parse/name.rs:12:2
[INFO] [stderr]    |
[INFO] [stderr] 12 |     return IResult::Error(ErrorKind::Custom(42));
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove `return` as shown: `IResult::Error(ErrorKind::Custom(42))`
[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/ast/parse/name.rs:23:2
[INFO] [stderr]    |
[INFO] [stderr] 23 |     return IResult::Error(ErrorKind::Custom(42));
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove `return` as shown: `IResult::Error(ErrorKind::Custom(42))`
[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/ast/parse/mod.rs:42:4
[INFO] [stderr]    |
[INFO] [stderr] 42 |             return Err(format!("Couldn't parse {:?}", from_utf8(rest)));
[INFO] [stderr]    |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove `return` as shown: `Err(format!("Couldn't parse {:?}", from_utf8(rest)))`
[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/ctxt/build.rs:10:2
[INFO] [stderr]    |
[INFO] [stderr] 10 |       return Ok(Ctxt {
[INFO] [stderr]    |  _____^
[INFO] [stderr] 11 | |         ast,
[INFO] [stderr] 12 | |         cctxt: CCtxt
[INFO] [stderr] 13 | |     });
[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] 10 |     Ok(Ctxt {
[INFO] [stderr] 11 |         ast,
[INFO] [stderr] 12 |         cctxt: CCtxt
[INFO] [stderr] 13 |     })
[INFO] [stderr]    |
[INFO] [stderr] 
[INFO] [stderr] warning: unneeded return statement
[INFO] [stderr]   --> src/exec/heap.rs:17:3
[INFO] [stderr]    |
[INFO] [stderr] 17 |         return self.map.get(&index);
[INFO] [stderr]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove `return` as shown: `self.map.get(&index)`
[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/exec/heap.rs:24:3
[INFO] [stderr]    |
[INFO] [stderr] 24 |         return key;
[INFO] [stderr]    |         ^^^^^^^^^^^ help: remove `return` as shown: `key`
[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/exec/mod.rs:151:3
[INFO] [stderr]     |
[INFO] [stderr] 151 |         return None;
[INFO] [stderr]     |         ^^^^^^^^^^^^ help: remove `return` as shown: `None`
[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/ast/parse/mod.rs:42:4
[INFO] [stderr]    |
[INFO] [stderr] 42 |             return Err(format!("Couldn't parse {:?}", from_utf8(rest)));
[INFO] [stderr]    |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove `return` as shown: `Err(format!("Couldn't parse {:?}", from_utf8(rest)))`
[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/ctxt/build.rs:10:2
[INFO] [stderr]    |
[INFO] [stderr] 10 |       return Ok(Ctxt {
[INFO] [stderr]    |  _____^
[INFO] [stderr] 11 | |         ast,
[INFO] [stderr] 12 | |         cctxt: CCtxt
[INFO] [stderr] 13 | |     });
[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] 10 |     Ok(Ctxt {
[INFO] [stderr] 11 |         ast,
[INFO] [stderr] 12 |         cctxt: CCtxt
[INFO] [stderr] 13 |     })
[INFO] [stderr]    |
[INFO] [stderr] 
[INFO] [stderr] warning: unneeded return statement
[INFO] [stderr]   --> src/exec/heap.rs:17:3
[INFO] [stderr]    |
[INFO] [stderr] 17 |         return self.map.get(&index);
[INFO] [stderr]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove `return` as shown: `self.map.get(&index)`
[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/exec/heap.rs:24:3
[INFO] [stderr]    |
[INFO] [stderr] 24 |         return key;
[INFO] [stderr]    |         ^^^^^^^^^^^ help: remove `return` as shown: `key`
[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/exec/mod.rs:151:3
[INFO] [stderr]     |
[INFO] [stderr] 151 |         return None;
[INFO] [stderr]     |         ^^^^^^^^^^^^ help: remove `return` as shown: `None`
[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: variant is never constructed: `String`
[INFO] [stderr]    --> src/ast/mod.rs:154:2
[INFO] [stderr]     |
[INFO] [stderr] 154 |     String(String),
[INFO] [stderr]     |     ^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(dead_code)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Null`
[INFO] [stderr]    --> src/ast/mod.rs:156:2
[INFO] [stderr]     |
[INFO] [stderr] 156 |     Null, // the `null` expression
[INFO] [stderr]     |     ^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Array`
[INFO] [stderr]    --> src/ast/mod.rs:159:2
[INFO] [stderr]     |
[INFO] [stderr] 159 |     Array(Vec<Expr>),
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Tuple`
[INFO] [stderr]    --> src/ast/mod.rs:160:2
[INFO] [stderr]     |
[INFO] [stderr] 160 |     Tuple(Vec<Expr>),
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Object`
[INFO] [stderr]    --> src/ast/mod.rs:161:2
[INFO] [stderr]     |
[INFO] [stderr] 161 |     Object(HashMap<String, Box<Expr>>), // { f = 2 }
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `dealloc`
[INFO] [stderr]   --> src/exec/heap.rs:27:2
[INFO] [stderr]    |
[INFO] [stderr] 27 |     pub fn dealloc(&mut self, index: usize) -> Option<V> {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: calling `as_bytes()` on a string literal
[INFO] [stderr]   --> src/ast/parse/keyword.rs:18:12
[INFO] [stderr]    |
[INFO] [stderr] 18 |     parse_fun("fun(".as_bytes()).unwrap();
[INFO] [stderr]    |               ^^^^^^^^^^^^^^^^^ help: consider using a byte string literal instead: `b"fun("`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::string_lit_as_bytes)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#string_lit_as_bytes
[INFO] [stderr] 
[INFO] [stderr] warning: calling `as_bytes()` on a string literal
[INFO] [stderr]   --> src/ast/parse/keyword.rs:29:12
[INFO] [stderr]    |
[INFO] [stderr] 29 |     parse_fun("funx".as_bytes()).unwrap();
[INFO] [stderr]    |               ^^^^^^^^^^^^^^^^^ help: consider using a byte string literal instead: `b"funx"`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#string_lit_as_bytes
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `String`
[INFO] [stderr]    --> src/ast/mod.rs:154:2
[INFO] [stderr]     |
[INFO] [stderr] 154 |     String(String),
[INFO] [stderr]     |     ^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(dead_code)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Null`
[INFO] [stderr]    --> src/ast/mod.rs:156:2
[INFO] [stderr]     |
[INFO] [stderr] 156 |     Null, // the `null` expression
[INFO] [stderr]     |     ^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Array`
[INFO] [stderr]    --> src/ast/mod.rs:159:2
[INFO] [stderr]     |
[INFO] [stderr] 159 |     Array(Vec<Expr>),
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Tuple`
[INFO] [stderr]    --> src/ast/mod.rs:160:2
[INFO] [stderr]     |
[INFO] [stderr] 160 |     Tuple(Vec<Expr>),
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Object`
[INFO] [stderr]    --> src/ast/mod.rs:161:2
[INFO] [stderr]     |
[INFO] [stderr] 161 |     Object(HashMap<String, Box<Expr>>), // { f = 2 }
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `dealloc`
[INFO] [stderr]   --> src/exec/heap.rs:27:2
[INFO] [stderr]    |
[INFO] [stderr] 27 |     pub fn dealloc(&mut self, index: usize) -> Option<V> {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: identical conversion
[INFO] [stderr]   --> src/ast/parse/var_def.rs:20:10
[INFO] [stderr]    |
[INFO] [stderr] 20 |             name: String::from(name),
[INFO] [stderr]    |                   ^^^^^^^^^^^^^^^^^^ help: consider removing `String::from()`: `name`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::identity_conversion)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#identity_conversion
[INFO] [stderr] 
[INFO] [stderr] warning: identical conversion
[INFO] [stderr]   --> src/ast/parse/var_def.rs:35:10
[INFO] [stderr]    |
[INFO] [stderr] 35 |             name: String::from(name),
[INFO] [stderr]    |                   ^^^^^^^^^^^^^^^^^^ help: consider removing `String::from()`: `name`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#identity_conversion
[INFO] [stderr] 
[INFO] [stderr] warning: identical conversion
[INFO] [stderr]   --> src/ast/parse/var_def.rs:62:10
[INFO] [stderr]    |
[INFO] [stderr] 62 |             name: String::from(name),
[INFO] [stderr]    |                   ^^^^^^^^^^^^^^^^^^ help: consider removing `String::from()`: `name`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#identity_conversion
[INFO] [stderr] 
[INFO] [stderr] warning: identical conversion
[INFO] [stderr]   --> src/ast/parse/var_def.rs:20:10
[INFO] [stderr]    |
[INFO] [stderr] 20 |             name: String::from(name),
[INFO] [stderr]    |                   ^^^^^^^^^^^^^^^^^^ help: consider removing `String::from()`: `name`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::identity_conversion)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#identity_conversion
[INFO] [stderr] 
[INFO] [stderr] warning: calling `as_bytes()` on a string literal
[INFO] [stderr]   --> src/ast/parse/expr/fun.rs:27:30
[INFO] [stderr]    |
[INFO] [stderr] 27 |     let (i, _) = parse_expr_fun("fun(x) { let y = 2; }".as_bytes()).unwrap();
[INFO] [stderr]    |                                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: consider using a byte string literal instead: `b"fun(x) { let y = 2; }"`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#string_lit_as_bytes
[INFO] [stderr] 
[INFO] [stderr] warning: calling `as_bytes()` on a string literal
[INFO] [stderr] warning: identical conversion
[INFO] [stderr]   --> src/ast/parse/var_def.rs:35:10
[INFO] [stderr]    |
[INFO] [stderr]   --> src/ast/parse/expr/fun.rs:33:30
[INFO] [stderr] 35 |             name: String::from(name),
[INFO] [stderr]    |                   ^^^^^^^^^^^^^^^^^^ help: consider removing `String::from()`: `name`
[INFO] [stderr]    |
[INFO] [stderr] 33 |     let (i, _) = parse_expr_fun("fun() { }".as_bytes()).unwrap();
[INFO] [stderr]    |                                 ^^^^^^^^^^^^^^^^^^^^^^ help: consider using a byte string literal instead: `b"fun() { }"`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#identity_conversion
[INFO] [stderr] 
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#string_lit_as_bytes
[INFO] [stderr] 
[INFO] [stderr] warning: identical conversion
[INFO] [stderr]   --> src/ast/parse/var_def.rs:62:10
[INFO] [stderr]    |
[INFO] [stderr] 62 |             name: String::from(name),
[INFO] [stderr]    |                   ^^^^^^^^^^^^^^^^^^ help: consider removing `String::from()`: `name`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#identity_conversion
[INFO] [stderr] 
[INFO] [stderr] warning: calling `as_bytes()` on a string literal
[INFO] [stderr]   --> src/ast/parse/expr/fun_call.rs:22:30
[INFO] [stderr]    |
[INFO] [stderr] 22 |     let (i, _) = parse_fun_call("(2,3)".as_bytes()).unwrap();
[INFO] [stderr]    |                                 ^^^^^^^^^^^^^^^^^^ help: consider using a byte string literal instead: `b"(2,3)"`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#string_lit_as_bytes
[INFO] [stderr] 
[INFO] [stderr] warning: calling `as_bytes()` on a string literal
[INFO] [stderr]    --> src/ast/parse/expr/mod.rs:185:31
[INFO] [stderr]     |
[INFO] [stderr] 185 |     assert!(parse_expr_statement("2(2,3);".as_bytes()).unwrap().0.is_empty());
[INFO] [stderr]     |                                  ^^^^^^^^^^^^^^^^^^^^ help: consider using a byte string literal instead: `b"2(2,3);"`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#string_lit_as_bytes
[INFO] [stderr] 
[INFO] [stderr] warning: calling `as_bytes()` on a string literal
[INFO] [stderr]    --> src/ast/parse/expr/mod.rs:190:27
[INFO] [stderr]     |
[INFO] [stderr] 190 |     let (i, o)  = parse_expr("2(2,3)".as_bytes()).unwrap();
[INFO] [stderr]     |                              ^^^^^^^^^^^^^^^^^^^ help: consider using a byte string literal instead: `b"2(2,3)"`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#string_lit_as_bytes
[INFO] [stderr] 
[INFO] [stderr] warning: identical conversion
[INFO] [stderr]    --> src/ast/parse/constraint.rs:104:10
[INFO] [stderr]     |
[INFO] [stderr] 104 |             name: String::from(name),
[INFO] [stderr]     |                   ^^^^^^^^^^^^^^^^^^ help: consider removing `String::from()`: `name`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#identity_conversion
[INFO] [stderr] 
[INFO] [stderr] warning: you don't need to add `&` to all patterns
[INFO] [stderr]   --> src/ast/mod.rs:25:4
[INFO] [stderr]    |
[INFO] [stderr] 25 |               match self {
[INFO] [stderr]    |  _____________^
[INFO] [stderr] 26 | |                 &CtrlFlow::Return(ref x) => CtrlFlow::Return(x.clone().map(f)),
[INFO] [stderr] 27 | |                 &CtrlFlow::Break => CtrlFlow::Break,
[INFO] [stderr] 28 | |                 &CtrlFlow::Continue => CtrlFlow::Continue,
[INFO] [stderr] 29 | |             }
[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] 25 |             match *self {
[INFO] [stderr] 26 |                 CtrlFlow::Return(ref x) => CtrlFlow::Return(x.clone().map(f)),
[INFO] [stderr] 27 |                 CtrlFlow::Break => CtrlFlow::Break,
[INFO] [stderr] 28 |                 CtrlFlow::Continue => CtrlFlow::Continue,
[INFO] [stderr]    |
[INFO] [stderr] 
[INFO] [stderr] warning: identical conversion
[INFO] [stderr]    --> src/ast/parse/constraint.rs:104:10
[INFO] [stderr]     |
[INFO] [stderr] 104 |             name: String::from(name),
[INFO] [stderr]     |                   ^^^^^^^^^^^^^^^^^^ help: consider removing `String::from()`: `name`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#identity_conversion
[INFO] [stderr] 
[INFO] [stderr] warning: you don't need to add `&` to all patterns
[INFO] [stderr]   --> src/ast/mod.rs:87:3
[INFO] [stderr]    |
[INFO] [stderr] 87 |           match self {
[INFO] [stderr]    |  _________^
[INFO] [stderr] 88 | |             &PreOp::Minus => 9,
[INFO] [stderr] 89 | |             &PreOp::Not => 9,
[INFO] [stderr] 90 | |         }
[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] 87 |         match *self {
[INFO] [stderr] 88 |             PreOp::Minus => 9,
[INFO] [stderr] 89 |             PreOp::Not => 9,
[INFO] [stderr]    |
[INFO] [stderr] 
[INFO] [stderr] warning: you don't need to add `&` to all patterns
[INFO] [stderr]    --> src/ast/mod.rs:101:3
[INFO] [stderr]     |
[INFO] [stderr] 101 |           match self {
[INFO] [stderr]     |  _________^
[INFO] [stderr] 102 | |             &PostOp::FunCall(_) => 10
[INFO] [stderr] 103 | |         }
[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] 101 |         match *self {
[INFO] [stderr] 102 |             PostOp::FunCall(_) => 10
[INFO] [stderr]     |
[INFO] [stderr] 
[INFO] [stderr] warning: you don't need to add `&` to all patterns
[INFO] [stderr]    --> src/ast/mod.rs:126:3
[INFO] [stderr]     |
[INFO] [stderr] 126 |           match self {
[INFO] [stderr]     |  _________^
[INFO] [stderr] 127 | |             &Op2::LessEq => 8,
[INFO] [stderr] 128 | |             &Op2::Eq => 7,
[INFO] [stderr] 129 | |             &Op2::GreaterEq => 8,
[INFO] [stderr] ...   |
[INFO] [stderr] 139 | |             &Op2::Mod => 6,
[INFO] [stderr] 140 | |         }
[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] 126 |         match *self {
[INFO] [stderr] 127 |             Op2::LessEq => 8,
[INFO] [stderr] 128 |             Op2::Eq => 7,
[INFO] [stderr] 129 |             Op2::GreaterEq => 8,
[INFO] [stderr] 130 |             Op2::NotEq => 7,
[INFO] [stderr] 131 | 
[INFO] [stderr]   ...
[INFO] [stderr] 
[INFO] [stderr] warning: you don't need to add `&` to all patterns
[INFO] [stderr]  --> src/ctxt/build.rs:7:15
[INFO] [stderr]   |
[INFO] [stderr] 7 |         .filter(|x| if let &AstNode::CDef{..} = x { false } else { true } )
[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] 7 |         .filter(|x| if let AstNode::CDef{..} = *x { false } else { true } )
[INFO] [stderr]   |                            ^^^^^^^^^^^^^^^^^   ^^
[INFO] [stderr] 
[INFO] [stderr] warning: you don't need to add `&` to all patterns
[INFO] [stderr]   --> src/ast/mod.rs:25:4
[INFO] [stderr]    |
[INFO] [stderr] 25 |               match self {
[INFO] [stderr]    |  _____________^
[INFO] [stderr] 26 | |                 &CtrlFlow::Return(ref x) => CtrlFlow::Return(x.clone().map(f)),
[INFO] [stderr] 27 | |                 &CtrlFlow::Break => CtrlFlow::Break,
[INFO] [stderr] 28 | |                 &CtrlFlow::Continue => CtrlFlow::Continue,
[INFO] [stderr] 29 | |             }
[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] 25 |             match *self {
[INFO] [stderr] 26 |                 CtrlFlow::Return(ref x) => CtrlFlow::Return(x.clone().map(f)),
[INFO] [stderr] 27 |                 CtrlFlow::Break => CtrlFlow::Break,
[INFO] [stderr] 28 |                 CtrlFlow::Continue => CtrlFlow::Continue,
[INFO] [stderr]    |
[INFO] [stderr] 
[INFO] [stderr] warning: you don't need to add `&` to all patterns
[INFO] [stderr]   --> src/ast/mod.rs:87:3
[INFO] [stderr]    |
[INFO] [stderr] 87 |           match self {
[INFO] [stderr]    |  _________^
[INFO] [stderr] 88 | |             &PreOp::Minus => 9,
[INFO] [stderr] 89 | |             &PreOp::Not => 9,
[INFO] [stderr] 90 | |         }
[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] 87 |         match *self {
[INFO] [stderr] 88 |             PreOp::Minus => 9,
[INFO] [stderr] 89 |             PreOp::Not => 9,
[INFO] [stderr]    |
[INFO] [stderr] 
[INFO] [stderr] warning: you don't need to add `&` to all patterns
[INFO] [stderr]    --> src/ast/mod.rs:101:3
[INFO] [stderr]     |
[INFO] [stderr] 101 |           match self {
[INFO] [stderr]     |  _________^
[INFO] [stderr] 102 | |             &PostOp::FunCall(_) => 10
[INFO] [stderr] 103 | |         }
[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] 101 |         match *self {
[INFO] [stderr] 102 |             PostOp::FunCall(_) => 10
[INFO] [stderr]     |
[INFO] [stderr] 
[INFO] [stderr] warning: you don't need to add `&` to all patterns
[INFO] [stderr]    --> src/ast/mod.rs:126:3
[INFO] [stderr]     |
[INFO] [stderr] 126 |           match self {
[INFO] [stderr]     |  _________^
[INFO] [stderr] 127 | |             &Op2::LessEq => 8,
[INFO] [stderr] 128 | |             &Op2::Eq => 7,
[INFO] [stderr] 129 | |             &Op2::GreaterEq => 8,
[INFO] [stderr] ...   |
[INFO] [stderr] 139 | |             &Op2::Mod => 6,
[INFO] [stderr] 140 | |         }
[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] 126 |         match *self {
[INFO] [stderr] 127 |             Op2::LessEq => 8,
[INFO] [stderr] 128 |             Op2::Eq => 7,
[INFO] [stderr] 129 |             Op2::GreaterEq => 8,
[INFO] [stderr] 130 |             Op2::NotEq => 7,
[INFO] [stderr] 131 | 
[INFO] [stderr]   ...
[INFO] [stderr] 
[INFO] [stderr] warning: you don't need to add `&` to all patterns
[INFO] [stderr]  --> src/ctxt/build.rs:7:15
[INFO] [stderr]   |
[INFO] [stderr] 7 |         .filter(|x| if let &AstNode::CDef{..} = x { false } else { true } )
[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] 7 |         .filter(|x| if let AstNode::CDef{..} = *x { false } else { true } )
[INFO] [stderr]   |                            ^^^^^^^^^^^^^^^^^   ^^
[INFO] [stderr] 
[INFO] [stderr] warning: you don't need to add `&` to all patterns
[INFO] [stderr]   --> src/exec/expr.rs:7:3
[INFO] [stderr]    |
[INFO] [stderr] 7  |           match expr {
[INFO] [stderr]    |  _________^
[INFO] [stderr] 8  | |             &Expr::Null => Some(Val::Null),
[INFO] [stderr] 9  | |             &Expr::Num(x) => Some(Val::Num(x)),
[INFO] [stderr] 10 | |             &Expr::String(ref x) => Some(Val::String(x.clone())),
[INFO] [stderr] ...  |
[INFO] [stderr] 92 | |             _ => unimplemented!(),
[INFO] [stderr] 93 | |         }
[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] 7  |         match *expr {
[INFO] [stderr] 8  |             Expr::Null => Some(Val::Null),
[INFO] [stderr] 9  |             Expr::Num(x) => Some(Val::Num(x)),
[INFO] [stderr] 10 |             Expr::String(ref x) => Some(Val::String(x.clone())),
[INFO] [stderr] 11 |             Expr::Bool(x) => Some(Val::Bool(x)),
[INFO] [stderr] 12 |             Expr::Array(ref x) => Some(Val::Array(
[INFO] [stderr]  ...
[INFO] [stderr] 
[INFO] [stderr] warning: you don't need to add `&` to both the expression and the patterns
[INFO] [stderr]   --> src/exec/expr.rs:27:5
[INFO] [stderr]    |
[INFO] [stderr] 27 |                   if let &Expr::Var(ref s) = &**fun {
[INFO] [stderr]    |  _________________^
[INFO] [stderr] 28 | |                     if s == "print" {
[INFO] [stderr] 29 | |                         for arg in args {
[INFO] [stderr] 30 | |                             let val = self.exec_expr(&arg, ctxt).unwrap();
[INFO] [stderr] ...  |
[INFO] [stderr] 34 | |                     }
[INFO] [stderr] 35 | |                 }
[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] 27 |                 if let Expr::Var(ref s) = **fun {
[INFO] [stderr]    |                        ^^^^^^^^^^^^^^^^   ^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: you don't need to add `&` to all patterns
[INFO] [stderr]   --> src/exec/expr.rs:7:3
[INFO] [stderr]    |
[INFO] [stderr] 7  |           match expr {
[INFO] [stderr]    |  _________^
[INFO] [stderr] 8  | |             &Expr::Null => Some(Val::Null),
[INFO] [stderr] 9  | |             &Expr::Num(x) => Some(Val::Num(x)),
[INFO] [stderr] 10 | |             &Expr::String(ref x) => Some(Val::String(x.clone())),
[INFO] [stderr] ...  |
[INFO] [stderr] 92 | |             _ => unimplemented!(),
[INFO] [stderr] 93 | |         }
[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] 7  |         match *expr {
[INFO] [stderr] 8  |             Expr::Null => Some(Val::Null),
[INFO] [stderr] 9  |             Expr::Num(x) => Some(Val::Num(x)),
[INFO] [stderr] 10 |             Expr::String(ref x) => Some(Val::String(x.clone())),
[INFO] [stderr] 11 |             Expr::Bool(x) => Some(Val::Bool(x)),
[INFO] [stderr] 12 |             Expr::Array(ref x) => Some(Val::Array(
[INFO] [stderr]  ...
[INFO] [stderr] 
[INFO] [stderr] warning: you don't need to add `&` to both the expression and the patterns
[INFO] [stderr]   --> src/exec/expr.rs:27:5
[INFO] [stderr]    |
[INFO] [stderr] 27 |                   if let &Expr::Var(ref s) = &**fun {
[INFO] [stderr]    |  _________________^
[INFO] [stderr] 28 | |                     if s == "print" {
[INFO] [stderr] 29 | |                         for arg in args {
[INFO] [stderr] 30 | |                             let val = self.exec_expr(&arg, ctxt).unwrap();
[INFO] [stderr] ...  |
[INFO] [stderr] 34 | |                     }
[INFO] [stderr] 35 | |                 }
[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] warning: you don't need to add `&` to all patterns
[INFO] [stderr] help: try
[INFO] [stderr]    |
[INFO] [stderr] 27 |                 if let Expr::Var(ref s) = **fun {
[INFO] [stderr]    |                        ^^^^^^^^^^^^^^^^   ^^^^^
[INFO] [stderr]   --> src/exec/expr.rs:70:10
[INFO] [stderr]    |
[INFO] [stderr] 70 |                   Some(match op {
[INFO] [stderr]    |  ______________________^
[INFO] [stderr] 71 | |                     &Op2::LessEq => Val::Bool(a <= b),
[INFO] [stderr] 72 | |                     &Op2::Eq => Val::Bool(a == b),
[INFO] [stderr] 73 | |                     &Op2::GreaterEq => Val::Bool(a >= b),
[INFO] [stderr] ...  |
[INFO] [stderr] 83 | |                     &Op2::Mod => Val::Num(a % b),
[INFO] [stderr] 84 | |                 })
[INFO] [stderr]    | |_________________^
[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] 70 |                 Some(match *op {
[INFO] [stderr] 71 |                     Op2::LessEq => Val::Bool(a <= b),
[INFO] [stderr] 72 |                     Op2::Eq => Val::Bool(a == b),
[INFO] [stderr] 73 |                     Op2::GreaterEq => Val::Bool(a >= b),
[INFO] [stderr] 74 |                     Op2::NotEq => Val::Bool(a != b),
[INFO] [stderr] 75 | 
[INFO] [stderr]  ...
[INFO] [stderr] 
[INFO] [stderr] error: strict comparison of f32 or f64
[INFO] [stderr]   --> src/exec/expr.rs:72:28
[INFO] [stderr]    |
[INFO] [stderr] 72 |                     &Op2::Eq => Val::Bool(a == b),
[INFO] [stderr]    |                                           ^^^^^^ help: consider comparing them within some error: `(a - b).abs() < error`
[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]   --> src/exec/expr.rs:72:28
[INFO] [stderr]    |
[INFO] [stderr] 72 |                     &Op2::Eq => Val::Bool(a == b),
[INFO] [stderr]    |                                           ^^^^^^
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#float_cmp
[INFO] [stderr] 
[INFO] [stderr] error: strict comparison of f32 or f64
[INFO] [stderr]   --> src/exec/expr.rs:74:31
[INFO] [stderr]    |
[INFO] [stderr] 74 |                     &Op2::NotEq => Val::Bool(a != b),
[INFO] [stderr]    |                                              ^^^^^^ help: consider comparing them within some error: `(a - b).abs() < error`
[INFO] [stderr]    |
[INFO] [stderr] note: std::f32::EPSILON and std::f64::EPSILON are available.
[INFO] [stderr]   --> src/exec/expr.rs:74:31
[INFO] [stderr]    |
[INFO] [stderr] 74 |                     &Op2::NotEq => Val::Bool(a != b),
[INFO] [stderr]    |                                              ^^^^^^
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#float_cmp
[INFO] [stderr] 
[INFO] [stderr] warning: you don't need to add `&` to all patterns
[INFO] [stderr]   --> src/exec/expr.rs:70:10
[INFO] [stderr]    |
[INFO] [stderr] 70 |                   Some(match op {
[INFO] [stderr]    |  ______________________^
[INFO] [stderr] 71 | |                     &Op2::LessEq => Val::Bool(a <= b),
[INFO] [stderr] 72 | |                     &Op2::Eq => Val::Bool(a == b),
[INFO] [stderr] 73 | |                     &Op2::GreaterEq => Val::Bool(a >= b),
[INFO] [stderr] ...  |
[INFO] [stderr] 83 | |                     &Op2::Mod => Val::Num(a % b),
[INFO] [stderr] 84 | |                 })
[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] 70 |                 Some(match *op {
[INFO] [stderr] 71 |                     Op2::LessEq => Val::Bool(a <= b),
[INFO] [stderr] 72 |                     Op2::Eq => Val::Bool(a == b),
[INFO] [stderr] 73 |                     Op2::GreaterEq => Val::Bool(a >= b),
[INFO] [stderr] 74 |                     Op2::NotEq => Val::Bool(a != b),
[INFO] [stderr] 75 | 
[INFO] [stderr]  ...
[INFO] [stderr] 
[INFO] [stderr] warning: You are using an explicit closure for cloning elements
[INFO] [stderr]   --> src/exec/expr.rs:88:5
[INFO] [stderr]    |
[INFO] [stderr] 88 |                   self.get_var(name)
[INFO] [stderr]    |  _________________^
[INFO] [stderr] 89 | |                     .and_then(|i| self.heap.get(i))
[INFO] [stderr] 90 | |                     .map(|x| x.clone())
[INFO] [stderr]    | |_______________________________________^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::map_clone)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#map_clone
[INFO] [stderr] error: strict comparison of f32 or f64
[INFO] [stderr]   --> src/exec/expr.rs:72:28
[INFO] [stderr]    |
[INFO] [stderr] 72 |                     &Op2::Eq => Val::Bool(a == b),
[INFO] [stderr]    |                                           ^^^^^^ help: consider comparing them within some error: `(a - b).abs() < error`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[deny(clippy::float_cmp)] on by default
[INFO] [stderr] help: Consider calling the dedicated `cloned` method
[INFO] [stderr]    |
[INFO] [stderr] 88 |                 self.get_var(name)
[INFO] [stderr] 89 |                     .and_then(|i| self.heap.get(i)).cloned()
[INFO] [stderr]    |
[INFO] [stderr] note: std::f32::EPSILON and std::f64::EPSILON are available.
[INFO] [stderr]   --> src/exec/expr.rs:72:28
[INFO] [stderr]    |
[INFO] [stderr] 72 |                     &Op2::Eq => Val::Bool(a == b),
[INFO] [stderr]    |                                           ^^^^^^
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#float_cmp
[INFO] [stderr] 
[INFO] [stderr] 
[INFO] [stderr] error: strict comparison of f32 or f64
[INFO] [stderr]   --> src/exec/expr.rs:74:31
[INFO] [stderr]    |
[INFO] [stderr] 74 |                     &Op2::NotEq => Val::Bool(a != b),
[INFO] [stderr]    |                                              ^^^^^^ help: consider comparing them within some error: `(a - b).abs() < error`
[INFO] [stderr]    |
[INFO] [stderr] note: std::f32::EPSILON and std::f64::EPSILON are available.
[INFO] [stderr]   --> src/exec/expr.rs:74:31
[INFO] [stderr]    |
[INFO] [stderr] 74 |                     &Op2::NotEq => Val::Bool(a != b),
[INFO] [stderr]    |                                              ^^^^^^
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#float_cmp
[INFO] [stderr] 
[INFO] [stderr] warning: You are using an explicit closure for cloning elements
[INFO] [stderr]   --> src/exec/expr.rs:88:5
[INFO] [stderr]    |
[INFO] [stderr] 88 |                   self.get_var(name)
[INFO] [stderr]    |  _________________^
[INFO] [stderr] 89 | |                     .and_then(|i| self.heap.get(i))
[INFO] [stderr] 90 | |                     .map(|x| x.clone())
[INFO] [stderr]    | |_______________________________________^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::map_clone)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#map_clone
[INFO] [stderr] help: Consider calling the dedicated `cloned` method
[INFO] [stderr]    |
[INFO] [stderr] 88 |                 self.get_var(name)
[INFO] [stderr] 89 |                     .and_then(|i| self.heap.get(i)).cloned()
[INFO] [stderr]    |
[INFO] [stderr] 
[INFO] [stderr] warning: you don't need to add `&` to all patterns
[INFO] [stderr]    --> src/exec/mod.rs:78:3
[INFO] [stderr]     |
[INFO] [stderr] 78  |           match node {
[INFO] [stderr]     |  _________^
[INFO] [stderr] 79  | |             &AstNode::VarDec(VarDec { ref name, ref prefix, .. }) => {
[INFO] [stderr] 80  | |                 (match prefix {
[INFO] [stderr] 81  | |                     &VarDecPrefix::Let => self.local_mut(),
[INFO] [stderr] ...   |
[INFO] [stderr] 148 | |             _ => panic!("This should not happen")
[INFO] [stderr] 149 | |         };
[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] 78  |         match *node {
[INFO] [stderr] 79  |             AstNode::VarDec(VarDec { ref name, ref prefix, .. }) => {
[INFO] [stderr] 80  |                 (match prefix {
[INFO] [stderr] 81  |                     &VarDecPrefix::Let => self.local_mut(),
[INFO] [stderr] 82  |                     &VarDecPrefix::Global => self.global_mut(),
[INFO] [stderr] 83  |                 }).insert(name.to_string(), None);
[INFO] [stderr]   ...
[INFO] [stderr] 
[INFO] [stderr] warning: you don't need to add `&` to all patterns
[INFO] [stderr]   --> src/exec/mod.rs:80:5
[INFO] [stderr]    |
[INFO] [stderr] 80 |                   (match prefix {
[INFO] [stderr]    |  _________________^
[INFO] [stderr] 81 | |                     &VarDecPrefix::Let => self.local_mut(),
[INFO] [stderr] 82 | |                     &VarDecPrefix::Global => self.global_mut(),
[INFO] [stderr] 83 | |                 }).insert(name.to_string(), None);
[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] 80 |                 (match *prefix {
[INFO] [stderr] 81 |                     VarDecPrefix::Let => self.local_mut(),
[INFO] [stderr] 82 |                     VarDecPrefix::Global => self.global_mut(),
[INFO] [stderr]    |
[INFO] [stderr] 
[INFO] [stderr] warning: you don't need to add `&` to all patterns
[INFO] [stderr]    --> src/exec/mod.rs:78:3
[INFO] [stderr]     |
[INFO] [stderr] 78  |           match node {
[INFO] [stderr]     |  _________^
[INFO] [stderr] 79  | |             &AstNode::VarDec(VarDec { ref name, ref prefix, .. }) => {
[INFO] [stderr] 80  | |                 (match prefix {
[INFO] [stderr] 81  | |                     &VarDecPrefix::Let => self.local_mut(),
[INFO] [stderr] ...   |
[INFO] [stderr] 148 | |             _ => panic!("This should not happen")
[INFO] [stderr] 149 | |         };
[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] 78  |         match *node {
[INFO] [stderr] 79  |             AstNode::VarDec(VarDec { ref name, ref prefix, .. }) => {
[INFO] [stderr] 80  |                 (match prefix {
[INFO] [stderr] 81  |                     &VarDecPrefix::Let => self.local_mut(),
[INFO] [stderr] 82  |                     &VarDecPrefix::Global => self.global_mut(),
[INFO] [stderr] 83  |                 }).insert(name.to_string(), None);
[INFO] [stderr]   ...
[INFO] [stderr] 
[INFO] [stderr] warning: you don't need to add `&` to all patterns
[INFO] [stderr]   --> src/exec/mod.rs:80:5
[INFO] [stderr]    |
[INFO] [stderr] 80 |                   (match prefix {
[INFO] [stderr]    |  _________________^
[INFO] [stderr] 81 | |                     &VarDecPrefix::Let => self.local_mut(),
[INFO] [stderr] 82 | |                     &VarDecPrefix::Global => self.global_mut(),
[INFO] [stderr] 83 | |                 }).insert(name.to_string(), None);
[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] 80 |                 (match *prefix {
[INFO] [stderr] 81 |                     VarDecPrefix::Let => self.local_mut(),
[INFO] [stderr] 82 |                     VarDecPrefix::Global => self.global_mut(),
[INFO] [stderr]    |
[INFO] [stderr] 
[INFO] [stderr] warning: you don't need to add `&` to all patterns
[INFO] [stderr]    --> src/exec/mod.rs:110:5
[INFO] [stderr]     |
[INFO] [stderr] 110 |                   if let &Some(ref body) = otherwise {
[INFO] [stderr]     |  _________________^
[INFO] [stderr] 111 | |                     let mut res = None;
[INFO] [stderr] 112 | |
[INFO] [stderr] 113 | |                     self.push_stack();
[INFO] [stderr] ...   |
[INFO] [stderr] 121 | |                     return res;
[INFO] [stderr] 122 | |                 }
[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] 110 |                 if let Some(ref body) = *otherwise {
[INFO] [stderr]     |                        ^^^^^^^^^^^^^^   ^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: you don't need to add `&` to all patterns
[INFO] [stderr]    --> src/exec/mod.rs:110:5
[INFO] [stderr]     |
[INFO] [stderr] 110 |                   if let &Some(ref body) = otherwise {
[INFO] [stderr]     |  _________________^
[INFO] [stderr] 111 | |                     let mut res = None;
[INFO] [stderr] 112 | |
[INFO] [stderr] 113 | |                     self.push_stack();
[INFO] [stderr] ...   |
[INFO] [stderr] 121 | |                     return res;
[INFO] [stderr] 122 | |                 }
[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] 110 |                 if let Some(ref body) = *otherwise {
[INFO] [stderr]     |                        ^^^^^^^^^^^^^^   ^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to 2 previous errors
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to 2 previous errors
[INFO] [stderr] 
[INFO] [stderr] error: Could not compile `productivity-lang-compiler`.
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: Could not compile `productivity-lang-compiler`.
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `"docker" "inspect" "3449aceea1a6f3130e2e444d0286fd83772c87b62f4e83872bed910de156be98"`
[INFO] running `"docker" "rm" "-f" "3449aceea1a6f3130e2e444d0286fd83772c87b62f4e83872bed910de156be98"`
[INFO] [stdout] 3449aceea1a6f3130e2e444d0286fd83772c87b62f4e83872bed910de156be98