[INFO] updating cached repository FauxFaux/jsonarray2pg
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/FauxFaux/jsonarray2pg
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/FauxFaux/jsonarray2pg" "work/ex/clippy-test-run/sources/stable/gh/FauxFaux/jsonarray2pg"`
[INFO] [stderr] Cloning into 'work/ex/clippy-test-run/sources/stable/gh/FauxFaux/jsonarray2pg'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/FauxFaux/jsonarray2pg" "work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/gh/FauxFaux/jsonarray2pg"`
[INFO] [stderr] Cloning into 'work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/gh/FauxFaux/jsonarray2pg'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 638a02d20cf26e7c6c5415eec6f31c7e692d4e08
[INFO] sha for GitHub repo FauxFaux/jsonarray2pg: 638a02d20cf26e7c6c5415eec6f31c7e692d4e08
[INFO] validating manifest of FauxFaux/jsonarray2pg 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 FauxFaux/jsonarray2pg 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 FauxFaux/jsonarray2pg
[INFO] finished frobbing FauxFaux/jsonarray2pg
[INFO] frobbed toml for FauxFaux/jsonarray2pg written to work/ex/clippy-test-run/sources/stable/gh/FauxFaux/jsonarray2pg/Cargo.toml
[INFO] started frobbing FauxFaux/jsonarray2pg
[INFO] finished frobbing FauxFaux/jsonarray2pg
[INFO] frobbed toml for FauxFaux/jsonarray2pg written to work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/gh/FauxFaux/jsonarray2pg/Cargo.toml
[INFO] crate FauxFaux/jsonarray2pg 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 FauxFaux/jsonarray2pg against stable+rustflags=-Dclippy::into_iter_on_array for clippy-test-run
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/clippy-test-run/worker-0/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/gh/FauxFaux/jsonarray2pg:/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 -Dclippy::into_iter_on_array" "-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] e362f66d9dfb6278a41110c67673fc662cd6c693e2ebe24a30f1219560e0a1c2
[INFO] running `"docker" "start" "-a" "e362f66d9dfb6278a41110c67673fc662cd6c693e2ebe24a30f1219560e0a1c2"`
[INFO] [stderr]     Checking siphasher v0.2.1
[INFO] [stderr]     Checking md5 v0.3.3
[INFO] [stderr]     Checking phf_shared v0.7.21
[INFO] [stderr]     Checking postgres-protocol v0.2.1
[INFO] [stderr]     Checking phf v0.7.21
[INFO] [stderr]     Checking postgres-shared v0.2.0
[INFO] [stderr]     Checking postgres v0.14.0
[INFO] [stderr]     Checking jsonarray2pg v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: unneeded return statement
[INFO] [stderr]   --> src/json.rs:59:5
[INFO] [stderr]    |
[INFO] [stderr] 59 |     return Ok(());
[INFO] [stderr]    |     ^^^^^^^^^^^^^^ help: remove `return` as shown: `Ok(())`
[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/json.rs:113:5
[INFO] [stderr]     |
[INFO] [stderr] 113 |     return Ok(());
[INFO] [stderr]     |     ^^^^^^^^^^^^^^ help: remove `return` as shown: `Ok(())`
[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/json.rs:134:5
[INFO] [stderr]     |
[INFO] [stderr] 134 |     return Ok(());
[INFO] [stderr]     |     ^^^^^^^^^^^^^^ help: remove `return` as shown: `Ok(())`
[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/json.rs:148:5
[INFO] [stderr]     |
[INFO] [stderr] 148 |     return Ok(());
[INFO] [stderr]     |     ^^^^^^^^^^^^^^ help: remove `return` as shown: `Ok(())`
[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/json.rs:167:5
[INFO] [stderr]     |
[INFO] [stderr] 167 |     return parse_array_from_iter(&mut iter, consumer, array);
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove `return` as shown: `parse_array_from_iter(&mut iter, consumer, array)`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_return
[INFO] [stderr] 
[INFO] [stderr] warning: this `else { if .. }` block can be collapsed
[INFO] [stderr]    --> src/json.rs:214:16
[INFO] [stderr]     |
[INFO] [stderr] 214 |           } else {
[INFO] [stderr]     |  ________________^
[INFO] [stderr] 215 | |             if iter.peek().is_none() {
[INFO] [stderr] 216 | |                 return Ok(());
[INFO] [stderr] 217 | |             }
[INFO] [stderr] 218 | |         }
[INFO] [stderr]     | |_________^
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(clippy::collapsible_if)] on by default
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#collapsible_if
[INFO] [stderr] help: try
[INFO] [stderr]     |
[INFO] [stderr] 214 |         } else if iter.peek().is_none() {
[INFO] [stderr] 215 |     return Ok(());
[INFO] [stderr] 216 | }
[INFO] [stderr]     |
[INFO] [stderr] 
[INFO] [stderr] warning: unneeded return statement
[INFO] [stderr]   --> src/main.rs:46:5
[INFO] [stderr]    |
[INFO] [stderr] 46 |     return Ok(());
[INFO] [stderr]    |     ^^^^^^^^^^^^^^ help: remove `return` as shown: `Ok(())`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_return
[INFO] [stderr] 
[INFO] [stderr] warning: this if statement can be collapsed
[INFO] [stderr]   --> src/main.rs:38:9
[INFO] [stderr]    |
[INFO] [stderr] 38 | /         if timeout.timed_out() {
[INFO] [stderr] 39 | |             if live_crashes.load(sync::atomic::Ordering::Relaxed) {
[INFO] [stderr] 40 | |                 return Err("some thread has died".to_string());
[INFO] [stderr] 41 | |             }
[INFO] [stderr] 42 | |         }
[INFO] [stderr]    | |_________^
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#collapsible_if
[INFO] [stderr] help: try
[INFO] [stderr]    |
[INFO] [stderr] 38 |         if timeout.timed_out() && live_crashes.load(sync::atomic::Ordering::Relaxed) {
[INFO] [stderr] 39 |     return Err("some thread has died".to_string());
[INFO] [stderr] 40 | }
[INFO] [stderr]    |
[INFO] [stderr] 
[INFO] [stderr] warning: unneeded return statement
[INFO] [stderr]   --> src/main.rs:56:5
[INFO] [stderr]    |
[INFO] [stderr] 56 |     return lock.pop().unwrap();
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove `return` as shown: `lock.pop().unwrap()`
[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:81:5
[INFO] [stderr]    |
[INFO] [stderr] 81 |     return Ok(());
[INFO] [stderr]    |     ^^^^^^^^^^^^^^ help: remove `return` as shown: `Ok(())`
[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:198:5
[INFO] [stderr]     |
[INFO] [stderr] 198 |     return if err { 3 } else { 0 };
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove `return` as shown: `if err { 3 } else { 0 }`
[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:166:13
[INFO] [stderr]     |
[INFO] [stderr] 166 |             return res;
[INFO] [stderr]     |             ^^^^^^^^^^^ help: remove `return` as shown: `res`
[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/json.rs:59:5
[INFO] [stderr]    |
[INFO] [stderr] 59 |     return Ok(());
[INFO] [stderr]    |     ^^^^^^^^^^^^^^ help: remove `return` as shown: `Ok(())`
[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/json.rs:113:5
[INFO] [stderr]     |
[INFO] [stderr] 113 |     return Ok(());
[INFO] [stderr]     |     ^^^^^^^^^^^^^^ help: remove `return` as shown: `Ok(())`
[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/json.rs:134:5
[INFO] [stderr]     |
[INFO] [stderr] 134 |     return Ok(());
[INFO] [stderr]     |     ^^^^^^^^^^^^^^ help: remove `return` as shown: `Ok(())`
[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/json.rs:148:5
[INFO] [stderr]     |
[INFO] [stderr] 148 |     return Ok(());
[INFO] [stderr]     |     ^^^^^^^^^^^^^^ help: remove `return` as shown: `Ok(())`
[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/json.rs:167:5
[INFO] [stderr]     |
[INFO] [stderr] 167 |     return parse_array_from_iter(&mut iter, consumer, array);
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove `return` as shown: `parse_array_from_iter(&mut iter, consumer, array)`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_return
[INFO] [stderr] 
[INFO] [stderr] warning: this `else { if .. }` block can be collapsed
[INFO] [stderr]    --> src/json.rs:214:16
[INFO] [stderr]     |
[INFO] [stderr] 214 |           } else {
[INFO] [stderr]     |  ________________^
[INFO] [stderr] 215 | |             if iter.peek().is_none() {
[INFO] [stderr] 216 | |                 return Ok(());
[INFO] [stderr] 217 | |             }
[INFO] [stderr] 218 | |         }
[INFO] [stderr]     | |_________^
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(clippy::collapsible_if)] on by default
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#collapsible_if
[INFO] [stderr] help: try
[INFO] [stderr]     |
[INFO] [stderr] 214 |         } else if iter.peek().is_none() {
[INFO] [stderr] 215 |     return Ok(());
[INFO] [stderr] 216 | }
[INFO] [stderr]     |
[INFO] [stderr] 
[INFO] [stderr] warning: unneeded return statement
[INFO] [stderr]   --> src/main.rs:46:5
[INFO] [stderr]    |
[INFO] [stderr] 46 |     return Ok(());
[INFO] [stderr]    |     ^^^^^^^^^^^^^^ help: remove `return` as shown: `Ok(())`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_return
[INFO] [stderr] 
[INFO] [stderr] warning: this if statement can be collapsed
[INFO] [stderr]   --> src/main.rs:38:9
[INFO] [stderr]    |
[INFO] [stderr] 38 | /         if timeout.timed_out() {
[INFO] [stderr] 39 | |             if live_crashes.load(sync::atomic::Ordering::Relaxed) {
[INFO] [stderr] 40 | |                 return Err("some thread has died".to_string());
[INFO] [stderr] 41 | |             }
[INFO] [stderr] 42 | |         }
[INFO] [stderr]    | |_________^
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#collapsible_if
[INFO] [stderr] help: try
[INFO] [stderr]    |
[INFO] [stderr] 38 |         if timeout.timed_out() && live_crashes.load(sync::atomic::Ordering::Relaxed) {
[INFO] [stderr] 39 |     return Err("some thread has died".to_string());
[INFO] [stderr] 40 | }
[INFO] [stderr]    |
[INFO] [stderr] 
[INFO] [stderr] warning: unneeded return statement
[INFO] [stderr]   --> src/main.rs:56:5
[INFO] [stderr]    |
[INFO] [stderr] 56 |     return lock.pop().unwrap();
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove `return` as shown: `lock.pop().unwrap()`
[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:81:5
[INFO] [stderr]    |
[INFO] [stderr] 81 |     return Ok(());
[INFO] [stderr]    |     ^^^^^^^^^^^^^^ help: remove `return` as shown: `Ok(())`
[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:198:5
[INFO] [stderr]     |
[INFO] [stderr] 198 |     return if err { 3 } else { 0 };
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove `return` as shown: `if err { 3 } else { 0 }`
[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:166:13
[INFO] [stderr]     |
[INFO] [stderr] 166 |             return res;
[INFO] [stderr]     |             ^^^^^^^^^^^ help: remove `return` as shown: `res`
[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: variable does not need to be mutable
[INFO] [stderr]   --> src/json.rs:94:40
[INFO] [stderr]    |
[INFO] [stderr] 94 | fn read_string<T: Iterator<Item = u8>>(mut iter: &mut T,
[INFO] [stderr]    |                                        ----^^^^
[INFO] [stderr]    |                                        |
[INFO] [stderr]    |                                        help: remove this `mut`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_mut)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/json.rs:95:40
[INFO] [stderr]    |
[INFO] [stderr] 95 |                                        mut buf: &mut Vec<u8>)
[INFO] [stderr]    |                                        ----^^^
[INFO] [stderr]    |                                        |
[INFO] [stderr]    |                                        help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/json.rs:116:37
[INFO] [stderr]     |
[INFO] [stderr] 116 | fn read_num<T: Iterator<Item = u8>>(mut iter: &mut Peekable<T>,
[INFO] [stderr]     |                                     ----^^^^
[INFO] [stderr]     |                                     |
[INFO] [stderr]     |                                     help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/json.rs:117:37
[INFO] [stderr]     |
[INFO] [stderr] 117 |                                     mut buf: &mut Vec<u8>)
[INFO] [stderr]     |                                     ----^^^
[INFO] [stderr]     |                                     |
[INFO] [stderr]     |                                     help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/json.rs:160:46
[INFO] [stderr]     |
[INFO] [stderr] 160 | pub fn parse_array_from_file<T: io::Read, F>(mut from: &mut T,
[INFO] [stderr]     |                                              ----^^^^
[INFO] [stderr]     |                                              |
[INFO] [stderr]     |                                              help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: this loop could be written as a `while let` loop
[INFO] [stderr]   --> src/json.rs:10:5
[INFO] [stderr]    |
[INFO] [stderr] 10 | /     loop {
[INFO] [stderr] 11 | |         let c = match iter.peek() {
[INFO] [stderr] 12 | |             Some(x) => *x,
[INFO] [stderr] 13 | |             None => break,
[INFO] [stderr] ...  |
[INFO] [stderr] 22 | |         iter.next();
[INFO] [stderr] 23 | |     }
[INFO] [stderr]    | |_____^ help: try: `while let Some(x) = iter.peek() { .. }`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::while_let_loop)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#while_let_loop
[INFO] [stderr] 
[INFO] [stderr] warning: casting character literal to u8. `char`s are 4 bytes wide in rust, so casting to u8 truncates them
[INFO] [stderr]   --> src/json.rs:29:16
[INFO] [stderr]    |
[INFO] [stderr] 29 |     assert_eq!('{' as u8, iter.next().unwrap());
[INFO] [stderr]    |                ^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::char_lit_as_u8)] on by default
[INFO] [stderr]    = help: Consider using a byte literal instead:
[INFO] [stderr]            b'{'
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#char_lit_as_u8
[INFO] [stderr] 
[INFO] [stderr] warning: casting character literal to u8. `char`s are 4 bytes wide in rust, so casting to u8 truncates them
[INFO] [stderr]   --> src/json.rs:30:14
[INFO] [stderr]    |
[INFO] [stderr] 30 |     buf.push('{' as u8);
[INFO] [stderr]    |              ^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = help: Consider using a byte literal instead:
[INFO] [stderr]            b'{'
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#char_lit_as_u8
[INFO] [stderr] 
[INFO] [stderr] warning: casting character literal to u8. `char`s are 4 bytes wide in rust, so casting to u8 truncates them
[INFO] [stderr]   --> src/json.rs:32:8
[INFO] [stderr]    |
[INFO] [stderr] 32 |     if '}' as u8 == *iter.peek().ok_or("eof in short object")? {
[INFO] [stderr]    |        ^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = help: Consider using a byte literal instead:
[INFO] [stderr]            b'}'
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#char_lit_as_u8
[INFO] [stderr] 
[INFO] [stderr] warning: casting character literal to u8. `char`s are 4 bytes wide in rust, so casting to u8 truncates them
[INFO] [stderr]   --> src/json.rs:33:18
[INFO] [stderr]    |
[INFO] [stderr] 33 |         buf.push('}' as u8);
[INFO] [stderr]    |                  ^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = help: Consider using a byte literal instead:
[INFO] [stderr]            b'}'
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#char_lit_as_u8
[INFO] [stderr] 
[INFO] [stderr] warning: casting character literal to u8. `char`s are 4 bytes wide in rust, so casting to u8 truncates them
[INFO] [stderr]   --> src/json.rs:41:12
[INFO] [stderr]    |
[INFO] [stderr] 41 |         if ':' as u8 != iter.next().ok_or("eof at key-value gap")? {
[INFO] [stderr]    |            ^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = help: Consider using a byte literal instead:
[INFO] [stderr]            b':'
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#char_lit_as_u8
[INFO] [stderr] 
[INFO] [stderr] warning: casting character literal to u8. `char`s are 4 bytes wide in rust, so casting to u8 truncates them
[INFO] [stderr]   --> src/json.rs:44:18
[INFO] [stderr]    |
[INFO] [stderr] 44 |         buf.push(':' as u8);
[INFO] [stderr]    |                  ^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = help: Consider using a byte literal instead:
[INFO] [stderr]            b':'
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#char_lit_as_u8
[INFO] [stderr] 
[INFO] [stderr] warning: casting character literal to u8. `char`s are 4 bytes wide in rust, so casting to u8 truncates them
[INFO] [stderr]   --> src/json.rs:50:12
[INFO] [stderr]    |
[INFO] [stderr] 50 |         if ',' as u8 == end {
[INFO] [stderr]    |            ^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = help: Consider using a byte literal instead:
[INFO] [stderr]            b','
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#char_lit_as_u8
[INFO] [stderr] 
[INFO] [stderr] warning: casting character literal to u8. `char`s are 4 bytes wide in rust, so casting to u8 truncates them
[INFO] [stderr]   --> src/json.rs:53:12
[INFO] [stderr]    |
[INFO] [stderr] 53 |         if '}' as u8 == end {
[INFO] [stderr]    |            ^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = help: Consider using a byte literal instead:
[INFO] [stderr]            b'}'
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#char_lit_as_u8
[INFO] [stderr] 
[INFO] [stderr] warning: casting character literal to u8. `char`s are 4 bytes wide in rust, so casting to u8 truncates them
[INFO] [stderr]   --> src/json.rs:65:16
[INFO] [stderr]    |
[INFO] [stderr] 65 |     assert_eq!('[' as u8, iter.next().unwrap());
[INFO] [stderr]    |                ^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = help: Consider using a byte literal instead:
[INFO] [stderr]            b'['
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#char_lit_as_u8
[INFO] [stderr] 
[INFO] [stderr] warning: casting character literal to u8. `char`s are 4 bytes wide in rust, so casting to u8 truncates them
[INFO] [stderr]   --> src/json.rs:66:14
[INFO] [stderr]    |
[INFO] [stderr] 66 |     buf.push('[' as u8);
[INFO] [stderr]    |              ^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = help: Consider using a byte literal instead:
[INFO] [stderr]            b'['
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#char_lit_as_u8
[INFO] [stderr] 
[INFO] [stderr] warning: casting character literal to u8. `char`s are 4 bytes wide in rust, so casting to u8 truncates them
[INFO] [stderr]   --> src/json.rs:69:8
[INFO] [stderr]    |
[INFO] [stderr] 69 |     if ']' as u8 == *iter.peek().ok_or("eof in short array")? {
[INFO] [stderr]    |        ^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = help: Consider using a byte literal instead:
[INFO] [stderr]            b']'
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#char_lit_as_u8
[INFO] [stderr] 
[INFO] [stderr] warning: casting character literal to u8. `char`s are 4 bytes wide in rust, so casting to u8 truncates them
[INFO] [stderr]   --> src/json.rs:71:18
[INFO] [stderr]    |
[INFO] [stderr] 71 |         buf.push(']' as u8);
[INFO] [stderr]    |                  ^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = help: Consider using a byte literal instead:
[INFO] [stderr]            b']'
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#char_lit_as_u8
[INFO] [stderr] 
[INFO] [stderr] warning: casting character literal to u8. `char`s are 4 bytes wide in rust, so casting to u8 truncates them
[INFO] [stderr]   --> src/json.rs:82:12
[INFO] [stderr]    |
[INFO] [stderr] 82 |         if ',' as u8 == end {
[INFO] [stderr]    |            ^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = help: Consider using a byte literal instead:
[INFO] [stderr]            b','
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#char_lit_as_u8
[INFO] [stderr] 
[INFO] [stderr] warning: casting character literal to u8. `char`s are 4 bytes wide in rust, so casting to u8 truncates them
[INFO] [stderr]   --> src/json.rs:86:12
[INFO] [stderr]    |
[INFO] [stderr] 86 |         if ']' as u8 == end {
[INFO] [stderr]    |            ^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = help: Consider using a byte literal instead:
[INFO] [stderr]            b']'
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#char_lit_as_u8
[INFO] [stderr] 
[INFO] [stderr] warning: casting character literal to u8. `char`s are 4 bytes wide in rust, so casting to u8 truncates them
[INFO] [stderr]   --> src/json.rs:97:16
[INFO] [stderr]    |
[INFO] [stderr] 97 |     assert_eq!('"' as u8, iter.next().unwrap());
[INFO] [stderr]    |                ^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = help: Consider using a byte literal instead:
[INFO] [stderr]            b'"'
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#char_lit_as_u8
[INFO] [stderr] 
[INFO] [stderr] warning: casting character literal to u8. `char`s are 4 bytes wide in rust, so casting to u8 truncates them
[INFO] [stderr]   --> src/json.rs:98:14
[INFO] [stderr]    |
[INFO] [stderr] 98 |     buf.push('"' as u8);
[INFO] [stderr]    |              ^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = help: Consider using a byte literal instead:
[INFO] [stderr]            b'"'
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#char_lit_as_u8
[INFO] [stderr] 
[INFO] [stderr] warning: casting character literal to u8. `char`s are 4 bytes wide in rust, so casting to u8 truncates them
[INFO] [stderr]    --> src/json.rs:102:17
[INFO] [stderr]     |
[INFO] [stderr] 102 |         if c == '\\' as u8 {
[INFO] [stderr]     |                 ^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = help: Consider using a byte literal instead:
[INFO] [stderr]             b'\\'
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#char_lit_as_u8
[INFO] [stderr] 
[INFO] [stderr] warning: casting character literal to u8. `char`s are 4 bytes wide in rust, so casting to u8 truncates them
[INFO] [stderr]    --> src/json.rs:106:17
[INFO] [stderr]     |
[INFO] [stderr] 106 |         if c == '"' as u8 {
[INFO] [stderr]     |                 ^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = help: Consider using a byte literal instead:
[INFO] [stderr]             b'"'
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#char_lit_as_u8
[INFO] [stderr] 
[INFO] [stderr] warning: casting character literal to u8. `char`s are 4 bytes wide in rust, so casting to u8 truncates them
[INFO] [stderr]    --> src/json.rs:109:16
[INFO] [stderr]     |
[INFO] [stderr] 109 |         if c < ' ' as u8 {
[INFO] [stderr]     |                ^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = help: Consider using a byte literal instead:
[INFO] [stderr]             b' '
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#char_lit_as_u8
[INFO] [stderr] 
[INFO] [stderr] warning: casting character literal to u8. `char`s are 4 bytes wide in rust, so casting to u8 truncates them
[INFO] [stderr]    --> src/json.rs:121:20
[INFO] [stderr]     |
[INFO] [stderr] 121 |         if !((c >= 'a' as u8 && c <= 'z' as u8) ||
[INFO] [stderr]     |                    ^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = help: Consider using a byte literal instead:
[INFO] [stderr]             b'a'
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#char_lit_as_u8
[INFO] [stderr] 
[INFO] [stderr] warning: casting character literal to u8. `char`s are 4 bytes wide in rust, so casting to u8 truncates them
[INFO] [stderr]    --> src/json.rs:121:38
[INFO] [stderr]     |
[INFO] [stderr] 121 |         if !((c >= 'a' as u8 && c <= 'z' as u8) ||
[INFO] [stderr]     |                                      ^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = help: Consider using a byte literal instead:
[INFO] [stderr]             b'z'
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#char_lit_as_u8
[INFO] [stderr] 
[INFO] [stderr] warning: casting character literal to u8. `char`s are 4 bytes wide in rust, so casting to u8 truncates them
[INFO] [stderr]    --> src/json.rs:122:20
[INFO] [stderr]     |
[INFO] [stderr] 122 |              (c >= '0' as u8 && c <= '9' as u8) ||
[INFO] [stderr]     |                    ^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = help: Consider using a byte literal instead:
[INFO] [stderr]             b'0'
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#char_lit_as_u8
[INFO] [stderr] 
[INFO] [stderr] warning: casting character literal to u8. `char`s are 4 bytes wide in rust, so casting to u8 truncates them
[INFO] [stderr]    --> src/json.rs:122:38
[INFO] [stderr]     |
[INFO] [stderr] 122 |              (c >= '0' as u8 && c <= '9' as u8) ||
[INFO] [stderr]     |                                      ^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = help: Consider using a byte literal instead:
[INFO] [stderr]             b'9'
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#char_lit_as_u8
[INFO] [stderr] 
[INFO] [stderr] warning: casting character literal to u8. `char`s are 4 bytes wide in rust, so casting to u8 truncates them
[INFO] [stderr]    --> src/json.rs:123:17
[INFO] [stderr]     |
[INFO] [stderr] 123 |                 '.' as u8 == c ||
[INFO] [stderr]     |                 ^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = help: Consider using a byte literal instead:
[INFO] [stderr]             b'.'
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#char_lit_as_u8
[INFO] [stderr] 
[INFO] [stderr] warning: casting character literal to u8. `char`s are 4 bytes wide in rust, so casting to u8 truncates them
[INFO] [stderr]    --> src/json.rs:124:17
[INFO] [stderr]     |
[INFO] [stderr] 124 |                 '-' as u8 == c || '+' as u8 == c ||
[INFO] [stderr]     |                 ^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = help: Consider using a byte literal instead:
[INFO] [stderr]             b'-'
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#char_lit_as_u8
[INFO] [stderr] 
[INFO] [stderr] warning: casting character literal to u8. `char`s are 4 bytes wide in rust, so casting to u8 truncates them
[INFO] [stderr]    --> src/json.rs:124:35
[INFO] [stderr]     |
[INFO] [stderr] 124 |                 '-' as u8 == c || '+' as u8 == c ||
[INFO] [stderr]     |                                   ^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = help: Consider using a byte literal instead:
[INFO] [stderr]             b'+'
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#char_lit_as_u8
[INFO] [stderr] 
[INFO] [stderr] warning: casting character literal to u8. `char`s are 4 bytes wide in rust, so casting to u8 truncates them
[INFO] [stderr]    --> src/json.rs:125:17
[INFO] [stderr]     |
[INFO] [stderr] 125 |                 'N' as u8 == c || // NaN
[INFO] [stderr]     |                 ^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = help: Consider using a byte literal instead:
[INFO] [stderr]             b'N'
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#char_lit_as_u8
[INFO] [stderr] 
[INFO] [stderr] warning: casting character literal to u8. `char`s are 4 bytes wide in rust, so casting to u8 truncates them
[INFO] [stderr]    --> src/json.rs:126:17
[INFO] [stderr]     |
[INFO] [stderr] 126 |                 'I' as u8 == c || // Infinity
[INFO] [stderr]     |                 ^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = help: Consider using a byte literal instead:
[INFO] [stderr]             b'I'
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#char_lit_as_u8
[INFO] [stderr] 
[INFO] [stderr] warning: casting character literal to u8. `char`s are 4 bytes wide in rust, so casting to u8 truncates them
[INFO] [stderr]    --> src/json.rs:127:23
[INFO] [stderr]     |
[INFO] [stderr] 127 |                 (c >= 'A' as u8 && c <= 'F' as u8)) {
[INFO] [stderr]     |                       ^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = help: Consider using a byte literal instead:
[INFO] [stderr]             b'A'
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#char_lit_as_u8
[INFO] [stderr] 
[INFO] [stderr] warning: casting character literal to u8. `char`s are 4 bytes wide in rust, so casting to u8 truncates them
[INFO] [stderr]    --> src/json.rs:127:41
[INFO] [stderr]     |
[INFO] [stderr] 127 |                 (c >= 'A' as u8 && c <= 'F' as u8)) {
[INFO] [stderr]     |                                         ^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = help: Consider using a byte literal instead:
[INFO] [stderr]             b'F'
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#char_lit_as_u8
[INFO] [stderr] 
[INFO] [stderr] warning: use of `ok_or` followed by a function call
[INFO] [stderr]    --> src/json.rs:142:24
[INFO] [stderr]     |
[INFO] [stderr] 142 |     match *iter.peek().ok_or("eof looking for an element".to_string())? as char {
[INFO] [stderr]     |                        ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try this: `ok_or_else(|| "eof looking for an element".to_string())`
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(clippy::or_fun_call)] on by default
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#or_fun_call
[INFO] [stderr] 
[INFO] [stderr] warning: casting character literal to u8. `char`s are 4 bytes wide in rust, so casting to u8 truncates them
[INFO] [stderr]    --> src/json.rs:182:12
[INFO] [stderr]     |
[INFO] [stderr] 182 |         if '[' as u8 != start {
[INFO] [stderr]     |            ^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = help: Consider using a byte literal instead:
[INFO] [stderr]             b'['
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#char_lit_as_u8
[INFO] [stderr] 
[INFO] [stderr] warning: casting character literal to u8. `char`s are 4 bytes wide in rust, so casting to u8 truncates them
[INFO] [stderr]    --> src/json.rs:185:12
[INFO] [stderr]     |
[INFO] [stderr] 185 |         if ']' as u8 == *iter.peek().ok_or_else(bad_eof)? {
[INFO] [stderr]     |            ^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = help: Consider using a byte literal instead:
[INFO] [stderr]             b']'
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#char_lit_as_u8
[INFO] [stderr] 
[INFO] [stderr] warning: casting character literal to u8. `char`s are 4 bytes wide in rust, so casting to u8 truncates them
[INFO] [stderr]    --> src/json.rs:195:16
[INFO] [stderr]     |
[INFO] [stderr] 195 |             if (',' as u8) != end && (']' as u8) != end {
[INFO] [stderr]     |                ^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = help: Consider using a byte literal instead:
[INFO] [stderr]             b','
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#char_lit_as_u8
[INFO] [stderr] 
[INFO] [stderr] warning: casting character literal to u8. `char`s are 4 bytes wide in rust, so casting to u8 truncates them
[INFO] [stderr]    --> src/json.rs:195:38
[INFO] [stderr]     |
[INFO] [stderr] 195 |             if (',' as u8) != end && (']' as u8) != end {
[INFO] [stderr]     |                                      ^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = help: Consider using a byte literal instead:
[INFO] [stderr]             b']'
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#char_lit_as_u8
[INFO] [stderr] 
[INFO] [stderr] warning: casting character literal to u8. `char`s are 4 bytes wide in rust, so casting to u8 truncates them
[INFO] [stderr]    --> src/json.rs:211:16
[INFO] [stderr]     |
[INFO] [stderr] 211 |             if ']' as u8 == end.unwrap() {
[INFO] [stderr]     |                ^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = help: Consider using a byte literal instead:
[INFO] [stderr]             b']'
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#char_lit_as_u8
[INFO] [stderr] 
[INFO] [stderr] warning: use of `writeln!(stderr(), ...).unwrap()`. Consider using `eprintln!` instead
[INFO] [stderr]    --> src/main.rs:127:9
[INFO] [stderr]     |
[INFO] [stderr] 127 |         writeln!(io::stderr(), "exactly one of table or query must be specified").unwrap();
[INFO] [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(clippy::explicit_write)] on by default
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#explicit_write
[INFO] [stderr] 
[INFO] [stderr] warning: Err(_) will match all errors, maybe not a good idea
[INFO] [stderr]    --> src/main.rs:142:21
[INFO] [stderr]     |
[INFO] [stderr] 142 |                     Err(_) => panic!("USER or PGURL env is required to be present and valid unicode"),
[INFO] [stderr]     |                     ^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(clippy::match_wild_err_arm)] on by default
[INFO] [stderr]     = note: to remove this warning, match each error separately or use unreachable macro
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#match_wild_err_arm
[INFO] [stderr] 
[INFO] [stderr] warning: use of `writeln!(stderr(), ...).unwrap()`. Consider using `eprintln!` instead
[INFO] [stderr]    --> src/main.rs:177:9
[INFO] [stderr]     |
[INFO] [stderr] 177 |         writeln!(io::stderr(), "error: parsing failed, trying to shut down. Cause: {}", e).unwrap();
[INFO] [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#explicit_write
[INFO] [stderr] 
[INFO] [stderr] warning: the variable `id` is used as a loop counter. Consider using `for (id, item) in threads.enumerate()` or similar iterators
[INFO] [stderr]    --> src/main.rs:191:14
[INFO] [stderr]     |
[INFO] [stderr] 191 |     for t in threads {
[INFO] [stderr]     |              ^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(clippy::explicit_counter_loop)] on by default
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#explicit_counter_loop
[INFO] [stderr] 
[INFO] [stderr] warning: use of `writeln!(stderr(), ...).unwrap()`. Consider using `eprintln!` instead
[INFO] [stderr]    --> src/main.rs:193:13
[INFO] [stderr]     |
[INFO] [stderr] 193 |             writeln!(io::stderr(), "error: thread {} failed: {}", id, e).unwrap();
[INFO] [stderr]     |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#explicit_write
[INFO] [stderr] 
[INFO] [stderr] warning: casting u8 to i32 may become silently lossy if types change
[INFO] [stderr]    --> src/main.rs:202:19
[INFO] [stderr]     |
[INFO] [stderr] 202 |     process::exit(run() as i32);
[INFO] [stderr]     |                   ^^^^^^^^^^^^ help: try: `i32::from(run())`
[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: variable does not need to be mutable
[INFO] [stderr]   --> src/json.rs:94:40
[INFO] [stderr]    |
[INFO] [stderr] 94 | fn read_string<T: Iterator<Item = u8>>(mut iter: &mut T,
[INFO] [stderr]    |                                        ----^^^^
[INFO] [stderr]    |                                        |
[INFO] [stderr]    |                                        help: remove this `mut`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_mut)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/json.rs:95:40
[INFO] [stderr]    |
[INFO] [stderr] 95 |                                        mut buf: &mut Vec<u8>)
[INFO] [stderr]    |                                        ----^^^
[INFO] [stderr]    |                                        |
[INFO] [stderr]    |                                        help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/json.rs:116:37
[INFO] [stderr]     |
[INFO] [stderr] 116 | fn read_num<T: Iterator<Item = u8>>(mut iter: &mut Peekable<T>,
[INFO] [stderr]     |                                     ----^^^^
[INFO] [stderr]     |                                     |
[INFO] [stderr]     |                                     help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/json.rs:117:37
[INFO] [stderr]     |
[INFO] [stderr] 117 |                                     mut buf: &mut Vec<u8>)
[INFO] [stderr]     |                                     ----^^^
[INFO] [stderr]     |                                     |
[INFO] [stderr]     |                                     help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/json.rs:160:46
[INFO] [stderr]     |
[INFO] [stderr] 160 | pub fn parse_array_from_file<T: io::Read, F>(mut from: &mut T,
[INFO] [stderr]     |                                              ----^^^^
[INFO] [stderr]     |                                              |
[INFO] [stderr]     |                                              help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: this loop could be written as a `while let` loop
[INFO] [stderr]   --> src/json.rs:10:5
[INFO] [stderr]    |
[INFO] [stderr] 10 | /     loop {
[INFO] [stderr] 11 | |         let c = match iter.peek() {
[INFO] [stderr] 12 | |             Some(x) => *x,
[INFO] [stderr] 13 | |             None => break,
[INFO] [stderr] ...  |
[INFO] [stderr] 22 | |         iter.next();
[INFO] [stderr] 23 | |     }
[INFO] [stderr]    | |_____^ help: try: `while let Some(x) = iter.peek() { .. }`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::while_let_loop)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#while_let_loop
[INFO] [stderr] 
[INFO] [stderr] warning: casting character literal to u8. `char`s are 4 bytes wide in rust, so casting to u8 truncates them
[INFO] [stderr]   --> src/json.rs:29:16
[INFO] [stderr]    |
[INFO] [stderr] 29 |     assert_eq!('{' as u8, iter.next().unwrap());
[INFO] [stderr]    |                ^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::char_lit_as_u8)] on by default
[INFO] [stderr]    = help: Consider using a byte literal instead:
[INFO] [stderr]            b'{'
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#char_lit_as_u8
[INFO] [stderr] 
[INFO] [stderr] warning: casting character literal to u8. `char`s are 4 bytes wide in rust, so casting to u8 truncates them
[INFO] [stderr]   --> src/json.rs:30:14
[INFO] [stderr]    |
[INFO] [stderr] 30 |     buf.push('{' as u8);
[INFO] [stderr]    |              ^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = help: Consider using a byte literal instead:
[INFO] [stderr]            b'{'
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#char_lit_as_u8
[INFO] [stderr] 
[INFO] [stderr] warning: casting character literal to u8. `char`s are 4 bytes wide in rust, so casting to u8 truncates them
[INFO] [stderr]   --> src/json.rs:32:8
[INFO] [stderr]    |
[INFO] [stderr] 32 |     if '}' as u8 == *iter.peek().ok_or("eof in short object")? {
[INFO] [stderr]    |        ^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = help: Consider using a byte literal instead:
[INFO] [stderr]            b'}'
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#char_lit_as_u8
[INFO] [stderr] 
[INFO] [stderr] warning: casting character literal to u8. `char`s are 4 bytes wide in rust, so casting to u8 truncates them
[INFO] [stderr]   --> src/json.rs:33:18
[INFO] [stderr]    |
[INFO] [stderr] 33 |         buf.push('}' as u8);
[INFO] [stderr]    |                  ^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = help: Consider using a byte literal instead:
[INFO] [stderr]            b'}'
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#char_lit_as_u8
[INFO] [stderr] 
[INFO] [stderr] warning: casting character literal to u8. `char`s are 4 bytes wide in rust, so casting to u8 truncates them
[INFO] [stderr]   --> src/json.rs:41:12
[INFO] [stderr]    |
[INFO] [stderr] 41 |         if ':' as u8 != iter.next().ok_or("eof at key-value gap")? {
[INFO] [stderr]    |            ^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = help: Consider using a byte literal instead:
[INFO] [stderr]            b':'
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#char_lit_as_u8
[INFO] [stderr] 
[INFO] [stderr] warning: casting character literal to u8. `char`s are 4 bytes wide in rust, so casting to u8 truncates them
[INFO] [stderr]   --> src/json.rs:44:18
[INFO] [stderr]    |
[INFO] [stderr] 44 |         buf.push(':' as u8);
[INFO] [stderr]    |                  ^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = help: Consider using a byte literal instead:
[INFO] [stderr]            b':'
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#char_lit_as_u8
[INFO] [stderr] 
[INFO] [stderr] warning: casting character literal to u8. `char`s are 4 bytes wide in rust, so casting to u8 truncates them
[INFO] [stderr]   --> src/json.rs:50:12
[INFO] [stderr]    |
[INFO] [stderr] 50 |         if ',' as u8 == end {
[INFO] [stderr]    |            ^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = help: Consider using a byte literal instead:
[INFO] [stderr]            b','
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#char_lit_as_u8
[INFO] [stderr] 
[INFO] [stderr] warning: casting character literal to u8. `char`s are 4 bytes wide in rust, so casting to u8 truncates them
[INFO] [stderr]   --> src/json.rs:53:12
[INFO] [stderr]    |
[INFO] [stderr] 53 |         if '}' as u8 == end {
[INFO] [stderr]    |            ^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = help: Consider using a byte literal instead:
[INFO] [stderr]            b'}'
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#char_lit_as_u8
[INFO] [stderr] 
[INFO] [stderr] warning: casting character literal to u8. `char`s are 4 bytes wide in rust, so casting to u8 truncates them
[INFO] [stderr]   --> src/json.rs:65:16
[INFO] [stderr]    |
[INFO] [stderr] 65 |     assert_eq!('[' as u8, iter.next().unwrap());
[INFO] [stderr]    |                ^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = help: Consider using a byte literal instead:
[INFO] [stderr]            b'['
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#char_lit_as_u8
[INFO] [stderr] 
[INFO] [stderr] warning: casting character literal to u8. `char`s are 4 bytes wide in rust, so casting to u8 truncates them
[INFO] [stderr]   --> src/json.rs:66:14
[INFO] [stderr]    |
[INFO] [stderr] 66 |     buf.push('[' as u8);
[INFO] [stderr]    |              ^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = help: Consider using a byte literal instead:
[INFO] [stderr]            b'['
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#char_lit_as_u8
[INFO] [stderr] 
[INFO] [stderr] warning: casting character literal to u8. `char`s are 4 bytes wide in rust, so casting to u8 truncates them
[INFO] [stderr]   --> src/json.rs:69:8
[INFO] [stderr]    |
[INFO] [stderr] 69 |     if ']' as u8 == *iter.peek().ok_or("eof in short array")? {
[INFO] [stderr]    |        ^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = help: Consider using a byte literal instead:
[INFO] [stderr]            b']'
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#char_lit_as_u8
[INFO] [stderr] 
[INFO] [stderr] warning: casting character literal to u8. `char`s are 4 bytes wide in rust, so casting to u8 truncates them
[INFO] [stderr]   --> src/json.rs:71:18
[INFO] [stderr]    |
[INFO] [stderr] 71 |         buf.push(']' as u8);
[INFO] [stderr]    |                  ^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = help: Consider using a byte literal instead:
[INFO] [stderr]            b']'
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#char_lit_as_u8
[INFO] [stderr] 
[INFO] [stderr] warning: casting character literal to u8. `char`s are 4 bytes wide in rust, so casting to u8 truncates them
[INFO] [stderr]   --> src/json.rs:82:12
[INFO] [stderr]    |
[INFO] [stderr] 82 |         if ',' as u8 == end {
[INFO] [stderr]    |            ^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = help: Consider using a byte literal instead:
[INFO] [stderr]            b','
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#char_lit_as_u8
[INFO] [stderr] 
[INFO] [stderr] warning: casting character literal to u8. `char`s are 4 bytes wide in rust, so casting to u8 truncates them
[INFO] [stderr]   --> src/json.rs:86:12
[INFO] [stderr]    |
[INFO] [stderr] 86 |         if ']' as u8 == end {
[INFO] [stderr]    |            ^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = help: Consider using a byte literal instead:
[INFO] [stderr]            b']'
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#char_lit_as_u8
[INFO] [stderr] 
[INFO] [stderr] warning: casting character literal to u8. `char`s are 4 bytes wide in rust, so casting to u8 truncates them
[INFO] [stderr]   --> src/json.rs:97:16
[INFO] [stderr]    |
[INFO] [stderr] 97 |     assert_eq!('"' as u8, iter.next().unwrap());
[INFO] [stderr]    |                ^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = help: Consider using a byte literal instead:
[INFO] [stderr]            b'"'
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#char_lit_as_u8
[INFO] [stderr] 
[INFO] [stderr] warning: casting character literal to u8. `char`s are 4 bytes wide in rust, so casting to u8 truncates them
[INFO] [stderr]   --> src/json.rs:98:14
[INFO] [stderr]    |
[INFO] [stderr] 98 |     buf.push('"' as u8);
[INFO] [stderr]    |              ^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = help: Consider using a byte literal instead:
[INFO] [stderr]            b'"'
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#char_lit_as_u8
[INFO] [stderr] 
[INFO] [stderr] warning: casting character literal to u8. `char`s are 4 bytes wide in rust, so casting to u8 truncates them
[INFO] [stderr]    --> src/json.rs:102:17
[INFO] [stderr]     |
[INFO] [stderr] 102 |         if c == '\\' as u8 {
[INFO] [stderr]     |                 ^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = help: Consider using a byte literal instead:
[INFO] [stderr]             b'\\'
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#char_lit_as_u8
[INFO] [stderr] 
[INFO] [stderr] warning: casting character literal to u8. `char`s are 4 bytes wide in rust, so casting to u8 truncates them
[INFO] [stderr]    --> src/json.rs:106:17
[INFO] [stderr]     |
[INFO] [stderr] 106 |         if c == '"' as u8 {
[INFO] [stderr]     |                 ^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = help: Consider using a byte literal instead:
[INFO] [stderr]             b'"'
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#char_lit_as_u8
[INFO] [stderr] 
[INFO] [stderr] warning: casting character literal to u8. `char`s are 4 bytes wide in rust, so casting to u8 truncates them
[INFO] [stderr]    --> src/json.rs:109:16
[INFO] [stderr]     |
[INFO] [stderr] 109 |         if c < ' ' as u8 {
[INFO] [stderr]     |                ^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = help: Consider using a byte literal instead:
[INFO] [stderr]             b' '
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#char_lit_as_u8
[INFO] [stderr] 
[INFO] [stderr] warning: casting character literal to u8. `char`s are 4 bytes wide in rust, so casting to u8 truncates them
[INFO] [stderr]    --> src/json.rs:121:20
[INFO] [stderr]     |
[INFO] [stderr] 121 |         if !((c >= 'a' as u8 && c <= 'z' as u8) ||
[INFO] [stderr]     |                    ^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = help: Consider using a byte literal instead:
[INFO] [stderr]             b'a'
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#char_lit_as_u8
[INFO] [stderr] 
[INFO] [stderr] warning: casting character literal to u8. `char`s are 4 bytes wide in rust, so casting to u8 truncates them
[INFO] [stderr]    --> src/json.rs:121:38
[INFO] [stderr]     |
[INFO] [stderr] 121 |         if !((c >= 'a' as u8 && c <= 'z' as u8) ||
[INFO] [stderr]     |                                      ^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = help: Consider using a byte literal instead:
[INFO] [stderr]             b'z'
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#char_lit_as_u8
[INFO] [stderr] 
[INFO] [stderr] warning: casting character literal to u8. `char`s are 4 bytes wide in rust, so casting to u8 truncates them
[INFO] [stderr]    --> src/json.rs:122:20
[INFO] [stderr]     |
[INFO] [stderr] 122 |              (c >= '0' as u8 && c <= '9' as u8) ||
[INFO] [stderr]     |                    ^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = help: Consider using a byte literal instead:
[INFO] [stderr]             b'0'
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#char_lit_as_u8
[INFO] [stderr] 
[INFO] [stderr] warning: casting character literal to u8. `char`s are 4 bytes wide in rust, so casting to u8 truncates them
[INFO] [stderr]    --> src/json.rs:122:38
[INFO] [stderr]     |
[INFO] [stderr] 122 |              (c >= '0' as u8 && c <= '9' as u8) ||
[INFO] [stderr]     |                                      ^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = help: Consider using a byte literal instead:
[INFO] [stderr]             b'9'
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#char_lit_as_u8
[INFO] [stderr] 
[INFO] [stderr] warning: casting character literal to u8. `char`s are 4 bytes wide in rust, so casting to u8 truncates them
[INFO] [stderr]    --> src/json.rs:123:17
[INFO] [stderr]     |
[INFO] [stderr] 123 |                 '.' as u8 == c ||
[INFO] [stderr]     |                 ^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = help: Consider using a byte literal instead:
[INFO] [stderr]             b'.'
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#char_lit_as_u8
[INFO] [stderr] 
[INFO] [stderr] warning: casting character literal to u8. `char`s are 4 bytes wide in rust, so casting to u8 truncates them
[INFO] [stderr]    --> src/json.rs:124:17
[INFO] [stderr]     |
[INFO] [stderr] 124 |                 '-' as u8 == c || '+' as u8 == c ||
[INFO] [stderr]     |                 ^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = help: Consider using a byte literal instead:
[INFO] [stderr]             b'-'
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#char_lit_as_u8
[INFO] [stderr] 
[INFO] [stderr] warning: casting character literal to u8. `char`s are 4 bytes wide in rust, so casting to u8 truncates them
[INFO] [stderr]    --> src/json.rs:124:35
[INFO] [stderr]     |
[INFO] [stderr] 124 |                 '-' as u8 == c || '+' as u8 == c ||
[INFO] [stderr]     |                                   ^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = help: Consider using a byte literal instead:
[INFO] [stderr]             b'+'
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#char_lit_as_u8
[INFO] [stderr] 
[INFO] [stderr] warning: casting character literal to u8. `char`s are 4 bytes wide in rust, so casting to u8 truncates them
[INFO] [stderr]    --> src/json.rs:125:17
[INFO] [stderr]     |
[INFO] [stderr] 125 |                 'N' as u8 == c || // NaN
[INFO] [stderr]     |                 ^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = help: Consider using a byte literal instead:
[INFO] [stderr]             b'N'
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#char_lit_as_u8
[INFO] [stderr] 
[INFO] [stderr] warning: casting character literal to u8. `char`s are 4 bytes wide in rust, so casting to u8 truncates them
[INFO] [stderr]    --> src/json.rs:126:17
[INFO] [stderr]     |
[INFO] [stderr] 126 |                 'I' as u8 == c || // Infinity
[INFO] [stderr]     |                 ^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = help: Consider using a byte literal instead:
[INFO] [stderr]             b'I'
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#char_lit_as_u8
[INFO] [stderr] 
[INFO] [stderr] warning: casting character literal to u8. `char`s are 4 bytes wide in rust, so casting to u8 truncates them
[INFO] [stderr]    --> src/json.rs:127:23
[INFO] [stderr]     |
[INFO] [stderr] 127 |                 (c >= 'A' as u8 && c <= 'F' as u8)) {
[INFO] [stderr]     |                       ^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = help: Consider using a byte literal instead:
[INFO] [stderr]             b'A'
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#char_lit_as_u8
[INFO] [stderr] 
[INFO] [stderr] warning: casting character literal to u8. `char`s are 4 bytes wide in rust, so casting to u8 truncates them
[INFO] [stderr]    --> src/json.rs:127:41
[INFO] [stderr]     |
[INFO] [stderr] 127 |                 (c >= 'A' as u8 && c <= 'F' as u8)) {
[INFO] [stderr]     |                                         ^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = help: Consider using a byte literal instead:
[INFO] [stderr]             b'F'
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#char_lit_as_u8
[INFO] [stderr] 
[INFO] [stderr] warning: use of `ok_or` followed by a function call
[INFO] [stderr]    --> src/json.rs:142:24
[INFO] [stderr]     |
[INFO] [stderr] 142 |     match *iter.peek().ok_or("eof looking for an element".to_string())? as char {
[INFO] [stderr]     |                        ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try this: `ok_or_else(|| "eof looking for an element".to_string())`
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(clippy::or_fun_call)] on by default
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#or_fun_call
[INFO] [stderr] 
[INFO] [stderr] warning: casting character literal to u8. `char`s are 4 bytes wide in rust, so casting to u8 truncates them
[INFO] [stderr]    --> src/json.rs:182:12
[INFO] [stderr]     |
[INFO] [stderr] 182 |         if '[' as u8 != start {
[INFO] [stderr]     |            ^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = help: Consider using a byte literal instead:
[INFO] [stderr]             b'['
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#char_lit_as_u8
[INFO] [stderr] 
[INFO] [stderr] warning: casting character literal to u8. `char`s are 4 bytes wide in rust, so casting to u8 truncates them
[INFO] [stderr]    --> src/json.rs:185:12
[INFO] [stderr]     |
[INFO] [stderr] 185 |         if ']' as u8 == *iter.peek().ok_or_else(bad_eof)? {
[INFO] [stderr]     |            ^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = help: Consider using a byte literal instead:
[INFO] [stderr]             b']'
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#char_lit_as_u8
[INFO] [stderr] 
[INFO] [stderr] warning: casting character literal to u8. `char`s are 4 bytes wide in rust, so casting to u8 truncates them
[INFO] [stderr]    --> src/json.rs:195:16
[INFO] [stderr]     |
[INFO] [stderr] 195 |             if (',' as u8) != end && (']' as u8) != end {
[INFO] [stderr]     |                ^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = help: Consider using a byte literal instead:
[INFO] [stderr]             b','
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#char_lit_as_u8
[INFO] [stderr] 
[INFO] [stderr] warning: casting character literal to u8. `char`s are 4 bytes wide in rust, so casting to u8 truncates them
[INFO] [stderr]    --> src/json.rs:195:38
[INFO] [stderr]     |
[INFO] [stderr] 195 |             if (',' as u8) != end && (']' as u8) != end {
[INFO] [stderr]     |                                      ^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = help: Consider using a byte literal instead:
[INFO] [stderr]             b']'
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#char_lit_as_u8
[INFO] [stderr] 
[INFO] [stderr] warning: casting character literal to u8. `char`s are 4 bytes wide in rust, so casting to u8 truncates them
[INFO] [stderr]    --> src/json.rs:211:16
[INFO] [stderr]     |
[INFO] [stderr] 211 |             if ']' as u8 == end.unwrap() {
[INFO] [stderr]     |                ^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = help: Consider using a byte literal instead:
[INFO] [stderr]             b']'
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#char_lit_as_u8
[INFO] [stderr] 
[INFO] [stderr] warning: use of `writeln!(stderr(), ...).unwrap()`. Consider using `eprintln!` instead
[INFO] [stderr]    --> src/main.rs:127:9
[INFO] [stderr]     |
[INFO] [stderr] 127 |         writeln!(io::stderr(), "exactly one of table or query must be specified").unwrap();
[INFO] [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(clippy::explicit_write)] on by default
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#explicit_write
[INFO] [stderr] 
[INFO] [stderr] warning: Err(_) will match all errors, maybe not a good idea
[INFO] [stderr]    --> src/main.rs:142:21
[INFO] [stderr]     |
[INFO] [stderr] 142 |                     Err(_) => panic!("USER or PGURL env is required to be present and valid unicode"),
[INFO] [stderr]     |                     ^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(clippy::match_wild_err_arm)] on by default
[INFO] [stderr]     = note: to remove this warning, match each error separately or use unreachable macro
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#match_wild_err_arm
[INFO] [stderr] 
[INFO] [stderr] warning: use of `writeln!(stderr(), ...).unwrap()`. Consider using `eprintln!` instead
[INFO] [stderr]    --> src/main.rs:177:9
[INFO] [stderr]     |
[INFO] [stderr] 177 |         writeln!(io::stderr(), "error: parsing failed, trying to shut down. Cause: {}", e).unwrap();
[INFO] [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#explicit_write
[INFO] [stderr] 
[INFO] [stderr] warning: the variable `id` is used as a loop counter. Consider using `for (id, item) in threads.enumerate()` or similar iterators
[INFO] [stderr]    --> src/main.rs:191:14
[INFO] [stderr]     |
[INFO] [stderr] 191 |     for t in threads {
[INFO] [stderr]     |              ^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(clippy::explicit_counter_loop)] on by default
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#explicit_counter_loop
[INFO] [stderr] 
[INFO] [stderr] warning: use of `writeln!(stderr(), ...).unwrap()`. Consider using `eprintln!` instead
[INFO] [stderr]    --> src/main.rs:193:13
[INFO] [stderr]     |
[INFO] [stderr] 193 |             writeln!(io::stderr(), "error: thread {} failed: {}", id, e).unwrap();
[INFO] [stderr]     |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#explicit_write
[INFO] [stderr] 
[INFO] [stderr] warning: casting u8 to i32 may become silently lossy if types change
[INFO] [stderr]    --> src/main.rs:202:19
[INFO] [stderr]     |
[INFO] [stderr] 202 |     process::exit(run() as i32);
[INFO] [stderr]     |                   ^^^^^^^^^^^^ help: try: `i32::from(run())`
[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]     Finished dev [unoptimized + debuginfo] target(s) in 7.67s
[INFO] running `"docker" "inspect" "e362f66d9dfb6278a41110c67673fc662cd6c693e2ebe24a30f1219560e0a1c2"`
[INFO] running `"docker" "rm" "-f" "e362f66d9dfb6278a41110c67673fc662cd6c693e2ebe24a30f1219560e0a1c2"`
[INFO] [stdout] e362f66d9dfb6278a41110c67673fc662cd6c693e2ebe24a30f1219560e0a1c2