[INFO] updating cached repository krishnakumar4a4/rust-epmd
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/krishnakumar4a4/rust-epmd
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/krishnakumar4a4/rust-epmd" "work/ex/clippy-test-run/sources/stable/gh/krishnakumar4a4/rust-epmd"`
[INFO] [stderr] Cloning into 'work/ex/clippy-test-run/sources/stable/gh/krishnakumar4a4/rust-epmd'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/krishnakumar4a4/rust-epmd" "work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/gh/krishnakumar4a4/rust-epmd"`
[INFO] [stderr] Cloning into 'work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/gh/krishnakumar4a4/rust-epmd'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 58dbcbf3bf647f89b2da7ee1bb009bbe23658c3d
[INFO] sha for GitHub repo krishnakumar4a4/rust-epmd: 58dbcbf3bf647f89b2da7ee1bb009bbe23658c3d
[INFO] validating manifest of krishnakumar4a4/rust-epmd 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 krishnakumar4a4/rust-epmd 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 krishnakumar4a4/rust-epmd
[INFO] finished frobbing krishnakumar4a4/rust-epmd
[INFO] frobbed toml for krishnakumar4a4/rust-epmd written to work/ex/clippy-test-run/sources/stable/gh/krishnakumar4a4/rust-epmd/Cargo.toml
[INFO] started frobbing krishnakumar4a4/rust-epmd
[INFO] finished frobbing krishnakumar4a4/rust-epmd
[INFO] frobbed toml for krishnakumar4a4/rust-epmd written to work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/gh/krishnakumar4a4/rust-epmd/Cargo.toml
[INFO] crate krishnakumar4a4/rust-epmd 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 krishnakumar4a4/rust-epmd 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-7/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/krishnakumar4a4/rust-epmd:/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] 2b9cff40a45c37b165402988db93b731228d38b23a9e744756f53f9f8a2f2dac
[INFO] running `"docker" "start" "-a" "2b9cff40a45c37b165402988db93b731228d38b23a9e744756f53f9f8a2f2dac"`
[INFO] [stderr]     Checking rust-empd v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: unused variable: `r_array`
[INFO] [stderr]   --> src/main.rs:77:13
[INFO] [stderr]    |
[INFO] [stderr] 77 |     let mut r_array: [u8; 30] = [0; 30];
[INFO] [stderr]    |             ^^^^^^^ help: consider using `_r_array` instead
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_variables)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/main.rs:77:9
[INFO] [stderr]    |
[INFO] [stderr] 77 |     let mut r_array: [u8; 30] = [0; 30];
[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: function is never used: `ask_port`
[INFO] [stderr]   --> src/main.rs:50:1
[INFO] [stderr]    |
[INFO] [stderr] 50 | fn ask_port(stream: &mut TcpStream) {
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(dead_code)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variable `bufVec` should have a snake case name such as `buf_vec`
[INFO] [stderr]   --> src/main.rs:19:9
[INFO] [stderr]    |
[INFO] [stderr] 19 |     let mut bufVec: [u8; 22] = [0; 22];
[INFO] [stderr]    |         ^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(non_snake_case)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: calling `as_bytes()` on a string literal
[INFO] [stderr]   --> src/main.rs:22:17
[INFO] [stderr]    |
[INFO] [stderr] 22 |     bufVec[2] = "x".as_bytes()[0];
[INFO] [stderr]    |                 ^^^^^^^^^^^^^^ help: consider using a byte string literal instead: `b"x"`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::string_lit_as_bytes)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#string_lit_as_bytes
[INFO] [stderr] 
[INFO] [stderr] warning: calling `as_bytes()` on a string literal
[INFO] [stderr]   --> src/main.rs:33:18
[INFO] [stderr]    |
[INFO] [stderr] 33 |     bufVec[13] = "k".as_bytes()[0];
[INFO] [stderr]    |                  ^^^^^^^^^^^^^^ help: consider using a byte string literal instead: `b"k"`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#string_lit_as_bytes
[INFO] [stderr] 
[INFO] [stderr] warning: calling `as_bytes()` on a string literal
[INFO] [stderr]   --> src/main.rs:34:18
[INFO] [stderr]    |
[INFO] [stderr] 34 |     bufVec[14] = "r".as_bytes()[0];
[INFO] [stderr]    |                  ^^^^^^^^^^^^^^ help: consider using a byte string literal instead: `b"r"`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#string_lit_as_bytes
[INFO] [stderr] 
[INFO] [stderr] warning: calling `as_bytes()` on a string literal
[INFO] [stderr]   --> src/main.rs:35:18
[INFO] [stderr]    |
[INFO] [stderr] 35 |     bufVec[15] = "i".as_bytes()[0];
[INFO] [stderr]    |                  ^^^^^^^^^^^^^^ help: consider using a byte string literal instead: `b"i"`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#string_lit_as_bytes
[INFO] [stderr] 
[INFO] [stderr] warning: calling `as_bytes()` on a string literal
[INFO] [stderr]   --> src/main.rs:36:18
[INFO] [stderr]    |
[INFO] [stderr] 36 |     bufVec[16] = "s".as_bytes()[0];
[INFO] [stderr]    |                  ^^^^^^^^^^^^^^ help: consider using a byte string literal instead: `b"s"`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#string_lit_as_bytes
[INFO] [stderr] 
[INFO] [stderr] warning: calling `as_bytes()` on a string literal
[INFO] [stderr]   --> src/main.rs:37:18
[INFO] [stderr]    |
[INFO] [stderr] 37 |     bufVec[17] = "h".as_bytes()[0];
[INFO] [stderr]    |                  ^^^^^^^^^^^^^^ help: consider using a byte string literal instead: `b"h"`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#string_lit_as_bytes
[INFO] [stderr] 
[INFO] [stderr] warning: calling `as_bytes()` on a string literal
[INFO] [stderr]   --> src/main.rs:38:18
[INFO] [stderr]    |
[INFO] [stderr] 38 |     bufVec[18] = "n".as_bytes()[0];
[INFO] [stderr]    |                  ^^^^^^^^^^^^^^ help: consider using a byte string literal instead: `b"n"`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#string_lit_as_bytes
[INFO] [stderr] 
[INFO] [stderr] warning: calling `as_bytes()` on a string literal
[INFO] [stderr]   --> src/main.rs:39:18
[INFO] [stderr]    |
[INFO] [stderr] 39 |     bufVec[19] = "a".as_bytes()[0];
[INFO] [stderr]    |                  ^^^^^^^^^^^^^^ help: consider using a byte string literal instead: `b"a"`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#string_lit_as_bytes
[INFO] [stderr] 
[INFO] [stderr] warning: calling `as_bytes()` on a string literal
[INFO] [stderr]   --> src/main.rs:54:15
[INFO] [stderr]    |
[INFO] [stderr] 54 |     buf_vec[2] = "z".as_bytes()[0];
[INFO] [stderr]    |                  ^^^^^^^^^^^^^^ help: consider using a byte string literal instead: `b"z"`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#string_lit_as_bytes
[INFO] [stderr] 
[INFO] [stderr] warning: calling `as_bytes()` on a string literal
[INFO] [stderr]   --> src/main.rs:55:15
[INFO] [stderr]    |
[INFO] [stderr] 55 |     buf_vec[3] = "k".as_bytes()[0];
[INFO] [stderr]    |                  ^^^^^^^^^^^^^^ help: consider using a byte string literal instead: `b"k"`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#string_lit_as_bytes
[INFO] [stderr] 
[INFO] [stderr] warning: calling `as_bytes()` on a string literal
[INFO] [stderr]   --> src/main.rs:56:18
[INFO] [stderr]    |
[INFO] [stderr] 56 |     buf_vec[4] = "r".as_bytes()[0];
[INFO] [stderr]    |                  ^^^^^^^^^^^^^^ help: consider using a byte string literal instead: `b"r"`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#string_lit_as_bytes
[INFO] [stderr] 
[INFO] [stderr] warning: calling `as_bytes()` on a string literal
[INFO] [stderr]   --> src/main.rs:57:18
[INFO] [stderr]    |
[INFO] [stderr] 57 |     buf_vec[5] = "i".as_bytes()[0];
[INFO] [stderr]    |                  ^^^^^^^^^^^^^^ help: consider using a byte string literal instead: `b"i"`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#string_lit_as_bytes
[INFO] [stderr] 
[INFO] [stderr] warning: calling `as_bytes()` on a string literal
[INFO] [stderr]   --> src/main.rs:58:18
[INFO] [stderr]    |
[INFO] [stderr] 58 |     buf_vec[6] = "s".as_bytes()[0];
[INFO] [stderr]    |                  ^^^^^^^^^^^^^^ help: consider using a byte string literal instead: `b"s"`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#string_lit_as_bytes
[INFO] [stderr] 
[INFO] [stderr] warning: calling `as_bytes()` on a string literal
[INFO] [stderr]   --> src/main.rs:59:18
[INFO] [stderr]    |
[INFO] [stderr] 59 |     buf_vec[7] = "h".as_bytes()[0];
[INFO] [stderr]    |                  ^^^^^^^^^^^^^^ help: consider using a byte string literal instead: `b"h"`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#string_lit_as_bytes
[INFO] [stderr] 
[INFO] [stderr] warning: calling `as_bytes()` on a string literal
[INFO] [stderr]   --> src/main.rs:60:18
[INFO] [stderr]    |
[INFO] [stderr] 60 |     buf_vec[8] = "n".as_bytes()[0];
[INFO] [stderr]    |                  ^^^^^^^^^^^^^^ help: consider using a byte string literal instead: `b"n"`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#string_lit_as_bytes
[INFO] [stderr] 
[INFO] [stderr] warning: calling `as_bytes()` on a string literal
[INFO] [stderr]   --> src/main.rs:61:18
[INFO] [stderr]    |
[INFO] [stderr] 61 |     buf_vec[9] = "a".as_bytes()[0];
[INFO] [stderr]    |                  ^^^^^^^^^^^^^^ help: consider using a byte string literal instead: `b"a"`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#string_lit_as_bytes
[INFO] [stderr] 
[INFO] [stderr] warning: calling `as_bytes()` on a string literal
[INFO] [stderr]   --> src/main.rs:74:15
[INFO] [stderr]    |
[INFO] [stderr] 74 |     buf_vec[2] = "n".as_bytes()[0];
[INFO] [stderr]    |                  ^^^^^^^^^^^^^^ help: consider using a byte string literal instead: `b"n"`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#string_lit_as_bytes
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `r_array`
[INFO] [stderr]   --> src/main.rs:77:13
[INFO] [stderr]    |
[INFO] [stderr] 77 |     let mut r_array: [u8; 30] = [0; 30];
[INFO] [stderr]    |             ^^^^^^^ help: consider using `_r_array` instead
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_variables)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/main.rs:77:9
[INFO] [stderr]    |
[INFO] [stderr] 77 |     let mut r_array: [u8; 30] = [0; 30];
[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: function is never used: `ask_port`
[INFO] [stderr]   --> src/main.rs:50:1
[INFO] [stderr]    |
[INFO] [stderr] 50 | fn ask_port(stream: &mut TcpStream) {
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(dead_code)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variable `bufVec` should have a snake case name such as `buf_vec`
[INFO] [stderr]   --> src/main.rs:19:9
[INFO] [stderr]    |
[INFO] [stderr] 19 |     let mut bufVec: [u8; 22] = [0; 22];
[INFO] [stderr]    |         ^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(non_snake_case)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: calling `as_bytes()` on a string literal
[INFO] [stderr]   --> src/main.rs:22:17
[INFO] [stderr]    |
[INFO] [stderr] 22 |     bufVec[2] = "x".as_bytes()[0];
[INFO] [stderr]    |                 ^^^^^^^^^^^^^^ help: consider using a byte string literal instead: `b"x"`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::string_lit_as_bytes)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#string_lit_as_bytes
[INFO] [stderr] 
[INFO] [stderr] warning: calling `as_bytes()` on a string literal
[INFO] [stderr]   --> src/main.rs:33:18
[INFO] [stderr]    |
[INFO] [stderr] 33 |     bufVec[13] = "k".as_bytes()[0];
[INFO] [stderr]    |                  ^^^^^^^^^^^^^^ help: consider using a byte string literal instead: `b"k"`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#string_lit_as_bytes
[INFO] [stderr] 
[INFO] [stderr] warning: calling `as_bytes()` on a string literal
[INFO] [stderr]   --> src/main.rs:34:18
[INFO] [stderr]    |
[INFO] [stderr] 34 |     bufVec[14] = "r".as_bytes()[0];
[INFO] [stderr]    |                  ^^^^^^^^^^^^^^ help: consider using a byte string literal instead: `b"r"`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#string_lit_as_bytes
[INFO] [stderr] 
[INFO] [stderr] warning: calling `as_bytes()` on a string literal
[INFO] [stderr]   --> src/main.rs:35:18
[INFO] [stderr]    |
[INFO] [stderr] 35 |     bufVec[15] = "i".as_bytes()[0];
[INFO] [stderr]    |                  ^^^^^^^^^^^^^^ help: consider using a byte string literal instead: `b"i"`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#string_lit_as_bytes
[INFO] [stderr] 
[INFO] [stderr] warning: calling `as_bytes()` on a string literal
[INFO] [stderr]   --> src/main.rs:36:18
[INFO] [stderr]    |
[INFO] [stderr] 36 |     bufVec[16] = "s".as_bytes()[0];
[INFO] [stderr]    |                  ^^^^^^^^^^^^^^ help: consider using a byte string literal instead: `b"s"`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#string_lit_as_bytes
[INFO] [stderr] 
[INFO] [stderr] warning: calling `as_bytes()` on a string literal
[INFO] [stderr]   --> src/main.rs:37:18
[INFO] [stderr]    |
[INFO] [stderr] 37 |     bufVec[17] = "h".as_bytes()[0];
[INFO] [stderr]    |                  ^^^^^^^^^^^^^^ help: consider using a byte string literal instead: `b"h"`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#string_lit_as_bytes
[INFO] [stderr] 
[INFO] [stderr] warning: calling `as_bytes()` on a string literal
[INFO] [stderr]   --> src/main.rs:38:18
[INFO] [stderr]    |
[INFO] [stderr] 38 |     bufVec[18] = "n".as_bytes()[0];
[INFO] [stderr]    |                  ^^^^^^^^^^^^^^ help: consider using a byte string literal instead: `b"n"`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#string_lit_as_bytes
[INFO] [stderr] 
[INFO] [stderr] warning: calling `as_bytes()` on a string literal
[INFO] [stderr]   --> src/main.rs:39:18
[INFO] [stderr]    |
[INFO] [stderr] 39 |     bufVec[19] = "a".as_bytes()[0];
[INFO] [stderr]    |                  ^^^^^^^^^^^^^^ help: consider using a byte string literal instead: `b"a"`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#string_lit_as_bytes
[INFO] [stderr] 
[INFO] [stderr] warning: calling `as_bytes()` on a string literal
[INFO] [stderr]   --> src/main.rs:54:15
[INFO] [stderr]    |
[INFO] [stderr] 54 |     buf_vec[2] = "z".as_bytes()[0];
[INFO] [stderr]    |                  ^^^^^^^^^^^^^^ help: consider using a byte string literal instead: `b"z"`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#string_lit_as_bytes
[INFO] [stderr] 
[INFO] [stderr] warning: calling `as_bytes()` on a string literal
[INFO] [stderr]   --> src/main.rs:55:15
[INFO] [stderr]    |
[INFO] [stderr] 55 |     buf_vec[3] = "k".as_bytes()[0];
[INFO] [stderr]    |                  ^^^^^^^^^^^^^^ help: consider using a byte string literal instead: `b"k"`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#string_lit_as_bytes
[INFO] [stderr] 
[INFO] [stderr] warning: calling `as_bytes()` on a string literal
[INFO] [stderr]   --> src/main.rs:56:18
[INFO] [stderr]    |
[INFO] [stderr] 56 |     buf_vec[4] = "r".as_bytes()[0];
[INFO] [stderr]    |                  ^^^^^^^^^^^^^^ help: consider using a byte string literal instead: `b"r"`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#string_lit_as_bytes
[INFO] [stderr] 
[INFO] [stderr] warning: calling `as_bytes()` on a string literal
[INFO] [stderr]   --> src/main.rs:57:18
[INFO] [stderr]    |
[INFO] [stderr] 57 |     buf_vec[5] = "i".as_bytes()[0];
[INFO] [stderr]    |                  ^^^^^^^^^^^^^^ help: consider using a byte string literal instead: `b"i"`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#string_lit_as_bytes
[INFO] [stderr] 
[INFO] [stderr] warning: calling `as_bytes()` on a string literal
[INFO] [stderr]   --> src/main.rs:58:18
[INFO] [stderr]    |
[INFO] [stderr] 58 |     buf_vec[6] = "s".as_bytes()[0];
[INFO] [stderr]    |                  ^^^^^^^^^^^^^^ help: consider using a byte string literal instead: `b"s"`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#string_lit_as_bytes
[INFO] [stderr] 
[INFO] [stderr] warning: calling `as_bytes()` on a string literal
[INFO] [stderr]   --> src/main.rs:59:18
[INFO] [stderr]    |
[INFO] [stderr] 59 |     buf_vec[7] = "h".as_bytes()[0];
[INFO] [stderr]    |                  ^^^^^^^^^^^^^^ help: consider using a byte string literal instead: `b"h"`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#string_lit_as_bytes
[INFO] [stderr] 
[INFO] [stderr] warning: calling `as_bytes()` on a string literal
[INFO] [stderr]   --> src/main.rs:60:18
[INFO] [stderr]    |
[INFO] [stderr] 60 |     buf_vec[8] = "n".as_bytes()[0];
[INFO] [stderr]    |                  ^^^^^^^^^^^^^^ help: consider using a byte string literal instead: `b"n"`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#string_lit_as_bytes
[INFO] [stderr] 
[INFO] [stderr] warning: calling `as_bytes()` on a string literal
[INFO] [stderr]   --> src/main.rs:61:18
[INFO] [stderr]    |
[INFO] [stderr] 61 |     buf_vec[9] = "a".as_bytes()[0];
[INFO] [stderr]    |                  ^^^^^^^^^^^^^^ help: consider using a byte string literal instead: `b"a"`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#string_lit_as_bytes
[INFO] [stderr] 
[INFO] [stderr] warning: calling `as_bytes()` on a string literal
[INFO] [stderr]   --> src/main.rs:74:15
[INFO] [stderr]    |
[INFO] [stderr] 74 |     buf_vec[2] = "n".as_bytes()[0];
[INFO] [stderr]    |                  ^^^^^^^^^^^^^^ help: consider using a byte string literal instead: `b"n"`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#string_lit_as_bytes
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.90s
[INFO] running `"docker" "inspect" "2b9cff40a45c37b165402988db93b731228d38b23a9e744756f53f9f8a2f2dac"`
[INFO] running `"docker" "rm" "-f" "2b9cff40a45c37b165402988db93b731228d38b23a9e744756f53f9f8a2f2dac"`
[INFO] [stdout] 2b9cff40a45c37b165402988db93b731228d38b23a9e744756f53f9f8a2f2dac