[INFO] updating cached repository MonteyMontey/crypto-info
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/MonteyMontey/crypto-info
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/MonteyMontey/crypto-info" "work/ex/clippy-test-run/sources/stable/gh/MonteyMontey/crypto-info"`
[INFO] [stderr] Cloning into 'work/ex/clippy-test-run/sources/stable/gh/MonteyMontey/crypto-info'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/MonteyMontey/crypto-info" "work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/gh/MonteyMontey/crypto-info"`
[INFO] [stderr] Cloning into 'work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/gh/MonteyMontey/crypto-info'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] f5a0915b8d28efb51fc0e772f381a8d89d000519
[INFO] sha for GitHub repo MonteyMontey/crypto-info: f5a0915b8d28efb51fc0e772f381a8d89d000519
[INFO] validating manifest of MonteyMontey/crypto-info 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 MonteyMontey/crypto-info 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 MonteyMontey/crypto-info
[INFO] finished frobbing MonteyMontey/crypto-info
[INFO] frobbed toml for MonteyMontey/crypto-info written to work/ex/clippy-test-run/sources/stable/gh/MonteyMontey/crypto-info/Cargo.toml
[INFO] started frobbing MonteyMontey/crypto-info
[INFO] finished frobbing MonteyMontey/crypto-info
[INFO] frobbed toml for MonteyMontey/crypto-info written to work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/gh/MonteyMontey/crypto-info/Cargo.toml
[INFO] crate MonteyMontey/crypto-info has a lockfile. skipping
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+stable" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr]     Blocking waiting for file lock on the registry index
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+stable" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] linting MonteyMontey/crypto-info against stable for clippy-test-run
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/clippy-test-run/worker-1/stable:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/clippy-test-run/sources/stable/gh/MonteyMontey/crypto-info:/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] 70b3a6335da43639670a14239dcaa05c82d8dc5d3559caa1ba398e3f19621e26
[INFO] running `"docker" "start" "-a" "70b3a6335da43639670a14239dcaa05c82d8dc5d3559caa1ba398e3f19621e26"`
[INFO] [stderr]     Checking minihttpse v0.1.6
[INFO] [stderr]     Checking serde_json v1.0.15
[INFO] [stderr]     Checking crypto-info v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: unneeded return statement
[INFO] [stderr]   --> src/main.rs:55:5
[INFO] [stderr]    |
[INFO] [stderr] 55 |     return n;
[INFO] [stderr]    |     ^^^^^^^^^ help: remove `return` as shown: `n`
[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/main.rs:61:14
[INFO] [stderr]    |
[INFO] [stderr] 61 |         1 => return "market_cap".to_string(),
[INFO] [stderr]    |              ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove `return` as shown: `"market_cap".to_string()`
[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/main.rs:62:14
[INFO] [stderr]    |
[INFO] [stderr] 62 |         2 => return "price".to_string(),
[INFO] [stderr]    |              ^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove `return` as shown: `"price".to_string()`
[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/main.rs:63:14
[INFO] [stderr]    |
[INFO] [stderr] 63 |         3 => return "volume_24h".to_string(),
[INFO] [stderr]    |              ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove `return` as shown: `"volume_24h".to_string()`
[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/main.rs:72:5
[INFO] [stderr]    |
[INFO] [stderr] 72 |     return json;
[INFO] [stderr]    |     ^^^^^^^^^^^^ help: remove `return` as shown: `json`
[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/main.rs:79:17
[INFO] [stderr]    |
[INFO] [stderr] 79 |         true => return false,
[INFO] [stderr]    |                 ^^^^^^^^^^^^ help: remove `return` as shown: `false`
[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/main.rs:80:18
[INFO] [stderr]    |
[INFO] [stderr] 80 |         false => return true
[INFO] [stderr]    |                  ^^^^^^^^^^^ help: remove `return` as shown: `true`
[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/main.rs:96:5
[INFO] [stderr]    |
[INFO] [stderr] 96 |     return response;
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^ help: remove `return` as shown: `response`
[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/main.rs:152:5
[INFO] [stderr]     |
[INFO] [stderr] 152 |     return tree;
[INFO] [stderr]     |     ^^^^^^^^^^^^ help: remove `return` as shown: `tree`
[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: writing `&String` instead of `&str` involves a new object where a slice will do.
[INFO] [stderr]   --> src/main.rs:76:44
[INFO] [stderr]    |
[INFO] [stderr] 76 | fn check_if_key_in_json(json: &Value, key: &String) -> bool {
[INFO] [stderr]    |                                            ^^^^^^^ help: change this to: `&str`
[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: `ref` on an entire `let` pattern is discouraged, take a reference with `&` instead
[INFO] [stderr]   --> src/main.rs:77:9
[INFO] [stderr]    |
[INFO] [stderr] 77 |     let ref value: Value = json["data"][key];
[INFO] [stderr]    |     ----^^^^^^^^^---------------------------- help: try: `let value: &Value = &json["data"][key];`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::toplevel_ref_arg)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#toplevel_ref_arg
[INFO] [stderr] 
[INFO] [stderr] warning: you seem to be trying to match on a boolean expression
[INFO] [stderr]   --> src/main.rs:78:5
[INFO] [stderr]    |
[INFO] [stderr] 78 | /     match value.is_null() {
[INFO] [stderr] 79 | |         true => return false,
[INFO] [stderr] 80 | |         false => return true
[INFO] [stderr] 81 | |     };
[INFO] [stderr]    | |_____^ help: consider using an if/else expression: `if value.is_null() { return false } else { return true }`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::match_bool)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#match_bool
[INFO] [stderr] 
[INFO] [stderr] warning: identical conversion
[INFO] [stderr]   --> src/main.rs:90:19
[INFO] [stderr]    |
[INFO] [stderr] 90 |     let request = String::from(format!("GET /v2/ticker/ HTTP/1.1\r\nHost: api.coinmarketcap.com\r\nConnection: close\r\n\r\n"));
[INFO] [stderr]    |                   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: consider removing `String::from()`: `format!("GET /v2/ticker/ HTTP/1.1\r\nHost: api.coinmarketcap.com\r\nConnection: close\r\n\r\n")`
[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: useless use of `format!`
[INFO] [stderr]   --> src/main.rs:90:32
[INFO] [stderr]    |
[INFO] [stderr] 90 |     let request = String::from(format!("GET /v2/ticker/ HTTP/1.1\r\nHost: api.coinmarketcap.com\r\nConnection: close\r\n\r\n"));
[INFO] [stderr]    |                                ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: consider using .to_string(): `"GET /v2/ticker/ HTTP/1.1\r\nHost: api.coinmarketcap.com\r\nConnection: close\r\n\r\n".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] 
[INFO] [stderr] error: handle written amount returned or use `Write::write_all` instead
[INFO] [stderr]   --> src/main.rs:91:5
[INFO] [stderr]    |
[INFO] [stderr] 91 |     stream.write(request.as_bytes()).expect("could not send request");
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[deny(clippy::unused_io_amount)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#unused_io_amount
[INFO] [stderr] 
[INFO] [stderr] warning: writing `&String` instead of `&str` involves a new object where a slice will do.
[INFO] [stderr]    --> src/main.rs:109:63
[INFO] [stderr]     |
[INFO] [stderr] 109 |     pub fn insert(&mut self, coin: &'a Value, sort_attribute: &'a String) {
[INFO] [stderr]     |                                                               ^^^^^^^^^^ help: change this to: `&str`
[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/main.rs:113:9
[INFO] [stderr]     |
[INFO] [stderr] 113 | /         match target_node {
[INFO] [stderr] 114 | |             &mut Some(ref mut subnode) => subnode.insert(coin, sort_attribute),
[INFO] [stderr] 115 | |             &mut None => {
[INFO] [stderr] 116 | |                 let new_node = Node { left_node: None, right_node: None, value: coin };
[INFO] [stderr] ...   |
[INFO] [stderr] 119 | |             }
[INFO] [stderr] 120 | |         }
[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] 113 |         match *target_node {
[INFO] [stderr] 114 |             Some(ref mut subnode) => subnode.insert(coin, sort_attribute),
[INFO] [stderr] 115 |             None => {
[INFO] [stderr]     |
[INFO] [stderr] 
[INFO] [stderr] warning: writing `&String` instead of `&str` involves a new object where a slice will do.
[INFO] [stderr]    --> src/main.rs:122:47
[INFO] [stderr]     |
[INFO] [stderr] 122 |     pub fn inorder(&mut self, sort_attribute: &'a String, recursion_depth: &mut u32) {
[INFO] [stderr]     |                                               ^^^^^^^^^^ help: change this to: `&str`
[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/main.rs:125:13
[INFO] [stderr]     |
[INFO] [stderr] 125 | /             match &mut self.right_node {
[INFO] [stderr] 126 | |                 &mut Some(ref mut subnode) => subnode.inorder(&sort_attribute, recursion_depth),
[INFO] [stderr] 127 | |                 &mut None => {}
[INFO] [stderr] 128 | |             }
[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] 125 |             match *(&mut self.right_node) {
[INFO] [stderr] 126 |                 Some(ref mut subnode) => subnode.inorder(&sort_attribute, recursion_depth),
[INFO] [stderr] 127 |                 None => {}
[INFO] [stderr]     |
[INFO] [stderr] 
[INFO] [stderr] warning: long literal lacking separators
[INFO] [stderr]   --> src/test.rs:49:39
[INFO] [stderr]    |
[INFO] [stderr] 49 |                         "volume_24h": 8561930000.0,
[INFO] [stderr]    |                                       ^^^^^^^^^^^^ help: consider: `8_561_930_000.0`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::unreadable_literal)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#unreadable_literal
[INFO] [stderr] 
[INFO] [stderr] warning: long literal lacking separators
[INFO] [stderr]   --> src/test.rs:50:39
[INFO] [stderr]    |
[INFO] [stderr] 50 |                         "market_cap": 146690002871.0
[INFO] [stderr]    |                                       ^^^^^^^^^^^^^^ help: consider: `146_690_002_871.0`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#unreadable_literal
[INFO] [stderr] 
[INFO] [stderr] warning: long literal lacking separators
[INFO] [stderr]   --> src/test.rs:59:39
[INFO] [stderr]    |
[INFO] [stderr] 59 |                         "volume_24h": 2561930000.0,
[INFO] [stderr]    |                                       ^^^^^^^^^^^^ help: consider: `2_561_930_000.0`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#unreadable_literal
[INFO] [stderr] 
[INFO] [stderr] warning: long literal lacking separators
[INFO] [stderr]   --> src/test.rs:60:39
[INFO] [stderr]    |
[INFO] [stderr] 60 |                         "market_cap": 86690002871.0
[INFO] [stderr]    |                                       ^^^^^^^^^^^^^ help: consider: `86_690_002_871.0`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#unreadable_literal
[INFO] [stderr] 
[INFO] [stderr] warning: long literal lacking separators
[INFO] [stderr]   --> src/test.rs:69:39
[INFO] [stderr]    |
[INFO] [stderr] 69 |                         "volume_24h": 761930000.0,
[INFO] [stderr]    |                                       ^^^^^^^^^^^ help: consider: `761_930_000.0`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#unreadable_literal
[INFO] [stderr] 
[INFO] [stderr] warning: long literal lacking separators
[INFO] [stderr]   --> src/test.rs:70:39
[INFO] [stderr]    |
[INFO] [stderr] 70 |                         "market_cap": 16690002871.0
[INFO] [stderr]    |                                       ^^^^^^^^^^^^^ help: consider: `16_690_002_871.0`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#unreadable_literal
[INFO] [stderr] 
[INFO] [stderr] warning: long literal lacking separators
[INFO] [stderr]   --> src/test.rs:79:39
[INFO] [stderr]    |
[INFO] [stderr] 79 |                         "volume_24h": 1930000.0,
[INFO] [stderr]    |                                       ^^^^^^^^^ help: consider: `1_930_000.0`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#unreadable_literal
[INFO] [stderr] 
[INFO] [stderr] warning: long literal lacking separators
[INFO] [stderr]   --> src/test.rs:80:39
[INFO] [stderr]    |
[INFO] [stderr] 80 |                         "market_cap": 690002871.0
[INFO] [stderr]    |                                       ^^^^^^^^^^^ help: consider: `690_002_871.0`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#unreadable_literal
[INFO] [stderr] 
[INFO] [stderr] warning: unneeded return statement
[INFO] [stderr]   --> src/main.rs:55:5
[INFO] [stderr]    |
[INFO] [stderr] 55 |     return n;
[INFO] [stderr]    |     ^^^^^^^^^ help: remove `return` as shown: `n`
[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/main.rs:61:14
[INFO] [stderr]    |
[INFO] [stderr] 61 |         1 => return "market_cap".to_string(),
[INFO] [stderr]    |              ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove `return` as shown: `"market_cap".to_string()`
[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/main.rs:62:14
[INFO] [stderr]    |
[INFO] [stderr] 62 |         2 => return "price".to_string(),
[INFO] [stderr]    |              ^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove `return` as shown: `"price".to_string()`
[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/main.rs:63:14
[INFO] [stderr]    |
[INFO] [stderr] 63 |         3 => return "volume_24h".to_string(),
[INFO] [stderr]    |              ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove `return` as shown: `"volume_24h".to_string()`
[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/main.rs:72:5
[INFO] [stderr]    |
[INFO] [stderr] 72 |     return json;
[INFO] [stderr]    |     ^^^^^^^^^^^^ help: remove `return` as shown: `json`
[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/main.rs:79:17
[INFO] [stderr]    |
[INFO] [stderr] 79 |         true => return false,
[INFO] [stderr]    |                 ^^^^^^^^^^^^ help: remove `return` as shown: `false`
[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/main.rs:80:18
[INFO] [stderr]    |
[INFO] [stderr] 80 |         false => return true
[INFO] [stderr]    |                  ^^^^^^^^^^^ help: remove `return` as shown: `true`
[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/main.rs:96:5
[INFO] [stderr]    |
[INFO] [stderr] 96 |     return response;
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^ help: remove `return` as shown: `response`
[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/main.rs:152:5
[INFO] [stderr]     |
[INFO] [stderr] 152 |     return tree;
[INFO] [stderr]     |     ^^^^^^^^^^^^ help: remove `return` as shown: `tree`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_return
[INFO] [stderr] 
[INFO] [stderr] warning: you don't need to add `&` to all patterns
[INFO] [stderr]    --> src/main.rs:132:13
[INFO] [stderr]     |
[INFO] [stderr] 132 | /             match &mut self.left_node {
[INFO] [stderr] 133 | |                 &mut Some(ref mut subnode) => subnode.inorder(&sort_attribute, recursion_depth),
[INFO] [stderr] 134 | |                 &mut None => {}
[INFO] [stderr] 135 | |             }
[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] 132 |             match *(&mut self.left_node) {
[INFO] [stderr] 133 |                 Some(ref mut subnode) => subnode.inorder(&sort_attribute, recursion_depth),
[INFO] [stderr] 134 |                 None => {}
[INFO] [stderr]     |
[INFO] [stderr] 
[INFO] [stderr] warning: writing `&String` instead of `&str` involves a new object where a slice will do.
[INFO] [stderr]    --> src/main.rs:141:46
[INFO] [stderr]     |
[INFO] [stderr] 141 | fn store_content_in_tree<'a>(sort_attribute: &'a String, content: &'a Value) -> Node<'a> {
[INFO] [stderr]     |                                              ^^^^^^^^^^ help: change this to: `&str`
[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] error: aborting due to previous error
[INFO] [stderr] 
[INFO] [stderr] error: Could not compile `crypto-info`.
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] warning: writing `&String` instead of `&str` involves a new object where a slice will do.
[INFO] [stderr]   --> src/main.rs:76:44
[INFO] [stderr]    |
[INFO] [stderr] 76 | fn check_if_key_in_json(json: &Value, key: &String) -> bool {
[INFO] [stderr]    |                                            ^^^^^^^ help: change this to: `&str`
[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: `ref` on an entire `let` pattern is discouraged, take a reference with `&` instead
[INFO] [stderr]   --> src/main.rs:77:9
[INFO] [stderr]    |
[INFO] [stderr] 77 |     let ref value: Value = json["data"][key];
[INFO] [stderr]    |     ----^^^^^^^^^---------------------------- help: try: `let value: &Value = &json["data"][key];`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::toplevel_ref_arg)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#toplevel_ref_arg
[INFO] [stderr] 
[INFO] [stderr] warning: you seem to be trying to match on a boolean expression
[INFO] [stderr]   --> src/main.rs:78:5
[INFO] [stderr]    |
[INFO] [stderr] 78 | /     match value.is_null() {
[INFO] [stderr] 79 | |         true => return false,
[INFO] [stderr] 80 | |         false => return true
[INFO] [stderr] 81 | |     };
[INFO] [stderr]    | |_____^ help: consider using an if/else expression: `if value.is_null() { return false } else { return true }`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::match_bool)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#match_bool
[INFO] [stderr] 
[INFO] [stderr] warning: identical conversion
[INFO] [stderr]   --> src/main.rs:90:19
[INFO] [stderr]    |
[INFO] [stderr] 90 |     let request = String::from(format!("GET /v2/ticker/ HTTP/1.1\r\nHost: api.coinmarketcap.com\r\nConnection: close\r\n\r\n"));
[INFO] [stderr]    |                   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: consider removing `String::from()`: `format!("GET /v2/ticker/ HTTP/1.1\r\nHost: api.coinmarketcap.com\r\nConnection: close\r\n\r\n")`
[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: useless use of `format!`
[INFO] [stderr]   --> src/main.rs:90:32
[INFO] [stderr]    |
[INFO] [stderr] 90 |     let request = String::from(format!("GET /v2/ticker/ HTTP/1.1\r\nHost: api.coinmarketcap.com\r\nConnection: close\r\n\r\n"));
[INFO] [stderr]    |                                ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: consider using .to_string(): `"GET /v2/ticker/ HTTP/1.1\r\nHost: api.coinmarketcap.com\r\nConnection: close\r\n\r\n".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] 
[INFO] [stderr] error: handle written amount returned or use `Write::write_all` instead
[INFO] [stderr]   --> src/main.rs:91:5
[INFO] [stderr]    |
[INFO] [stderr] 91 |     stream.write(request.as_bytes()).expect("could not send request");
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[deny(clippy::unused_io_amount)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#unused_io_amount
[INFO] [stderr] 
[INFO] [stderr] warning: writing `&String` instead of `&str` involves a new object where a slice will do.
[INFO] [stderr]    --> src/main.rs:109:63
[INFO] [stderr]     |
[INFO] [stderr] 109 |     pub fn insert(&mut self, coin: &'a Value, sort_attribute: &'a String) {
[INFO] [stderr]     |                                                               ^^^^^^^^^^ help: change this to: `&str`
[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/main.rs:113:9
[INFO] [stderr]     |
[INFO] [stderr] 113 | /         match target_node {
[INFO] [stderr] 114 | |             &mut Some(ref mut subnode) => subnode.insert(coin, sort_attribute),
[INFO] [stderr] 115 | |             &mut None => {
[INFO] [stderr] 116 | |                 let new_node = Node { left_node: None, right_node: None, value: coin };
[INFO] [stderr] ...   |
[INFO] [stderr] 119 | |             }
[INFO] [stderr] 120 | |         }
[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] 113 |         match *target_node {
[INFO] [stderr] 114 |             Some(ref mut subnode) => subnode.insert(coin, sort_attribute),
[INFO] [stderr] 115 |             None => {
[INFO] [stderr]     |
[INFO] [stderr] 
[INFO] [stderr] warning: writing `&String` instead of `&str` involves a new object where a slice will do.
[INFO] [stderr]    --> src/main.rs:122:47
[INFO] [stderr]     |
[INFO] [stderr] 122 |     pub fn inorder(&mut self, sort_attribute: &'a String, recursion_depth: &mut u32) {
[INFO] [stderr]     |                                               ^^^^^^^^^^ help: change this to: `&str`
[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/main.rs:125:13
[INFO] [stderr]     |
[INFO] [stderr] 125 | /             match &mut self.right_node {
[INFO] [stderr] 126 | |                 &mut Some(ref mut subnode) => subnode.inorder(&sort_attribute, recursion_depth),
[INFO] [stderr] 127 | |                 &mut None => {}
[INFO] [stderr] 128 | |             }
[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] 125 |             match *(&mut self.right_node) {
[INFO] [stderr] 126 |                 Some(ref mut subnode) => subnode.inorder(&sort_attribute, recursion_depth),
[INFO] [stderr] 127 |                 None => {}
[INFO] [stderr]     |
[INFO] [stderr] 
[INFO] [stderr] warning: you don't need to add `&` to all patterns
[INFO] [stderr]    --> src/main.rs:132:13
[INFO] [stderr]     |
[INFO] [stderr] 132 | /             match &mut self.left_node {
[INFO] [stderr] 133 | |                 &mut Some(ref mut subnode) => subnode.inorder(&sort_attribute, recursion_depth),
[INFO] [stderr] 134 | |                 &mut None => {}
[INFO] [stderr] 135 | |             }
[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] 132 |             match *(&mut self.left_node) {
[INFO] [stderr] 133 |                 Some(ref mut subnode) => subnode.inorder(&sort_attribute, recursion_depth),
[INFO] [stderr] 134 |                 None => {}
[INFO] [stderr]     |
[INFO] [stderr] 
[INFO] [stderr] warning: writing `&String` instead of `&str` involves a new object where a slice will do.
[INFO] [stderr]    --> src/main.rs:141:46
[INFO] [stderr]     |
[INFO] [stderr] 141 | fn store_content_in_tree<'a>(sort_attribute: &'a String, content: &'a Value) -> Node<'a> {
[INFO] [stderr]     |                                              ^^^^^^^^^^ help: change this to: `&str`
[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] error: aborting due to previous error
[INFO] [stderr] 
[INFO] [stderr] error: Could not compile `crypto-info`.
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `"docker" "inspect" "70b3a6335da43639670a14239dcaa05c82d8dc5d3559caa1ba398e3f19621e26"`
[INFO] running `"docker" "rm" "-f" "70b3a6335da43639670a14239dcaa05c82d8dc5d3559caa1ba398e3f19621e26"`
[INFO] [stdout] 70b3a6335da43639670a14239dcaa05c82d8dc5d3559caa1ba398e3f19621e26