[INFO] crate redis-protocol 0.1.1 is already in cache
[INFO] extracting crate redis-protocol 0.1.1 into work/ex/clippy-test-run/sources/stable/reg/redis-protocol/0.1.1
[INFO] extracting crate redis-protocol 0.1.1 into work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/reg/redis-protocol/0.1.1
[INFO] validating manifest of redis-protocol-0.1.1 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 redis-protocol-0.1.1 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 redis-protocol-0.1.1
[INFO] finished frobbing redis-protocol-0.1.1
[INFO] frobbed toml for redis-protocol-0.1.1 written to work/ex/clippy-test-run/sources/stable/reg/redis-protocol/0.1.1/Cargo.toml
[INFO] started frobbing redis-protocol-0.1.1
[INFO] finished frobbing redis-protocol-0.1.1
[INFO] frobbed toml for redis-protocol-0.1.1 written to work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/reg/redis-protocol/0.1.1/Cargo.toml
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+stable" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+stable" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+stable" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+stable" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] linting redis-protocol-0.1.1 against stable for clippy-test-run
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/clippy-test-run/worker-2/stable:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/clippy-test-run/sources/stable/reg/redis-protocol/0.1.1:/opt/crater/workdir:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/opt/crater/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/opt/crater/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/crater/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/crater/cargo-home" "-e" "RUSTUP_HOME=/opt/crater/rustup-home" "-w" "/opt/crater/workdir" "-m" "1536M" "--network" "none" "rustops/crates-build-env" "/opt/crater/cargo-home/bin/cargo" "+stable" "clippy" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] edbe0b2efc27ea00b94237669a6f28e5211da488ee56a517184f707891213948
[INFO] running `"docker" "start" "-a" "edbe0b2efc27ea00b94237669a6f28e5211da488ee56a517184f707891213948"`
[INFO] [stderr]     Checking pretty_env_logger v0.2.5
[INFO] [stderr]     Checking redis-protocol v0.1.1 (/opt/crater/workdir)
[INFO] [stderr] warning: Constants have by default a `'static` lifetime
[INFO] [stderr]   --> src/utils.rs:14:18
[INFO] [stderr]    |
[INFO] [stderr] 14 | pub const CRLF: &'static str = "\r\n";
[INFO] [stderr]    |                 -^^^^^^^---- help: consider removing `'static`: `&str`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::const_static_lifetime)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#const_static_lifetime
[INFO] [stderr] 
[INFO] [stderr] warning: Constants have by default a `'static` lifetime
[INFO] [stderr]   --> src/utils.rs:16:18
[INFO] [stderr]    |
[INFO] [stderr] 16 | pub const NULL: &'static str = "$-1\r\n";
[INFO] [stderr]    |                 -^^^^^^^---- help: consider removing `'static`: `&str`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#const_static_lifetime
[INFO] [stderr] 
[INFO] [stderr] warning: Constants have by default a `'static` lifetime
[INFO] [stderr]   --> src/utils.rs:21:23
[INFO] [stderr]    |
[INFO] [stderr] 21 | pub const ZEROED_KB: &'static [u8; 1024] = &[0; 1024];
[INFO] [stderr]    |                      -^^^^^^^----------- help: consider removing `'static`: `&[u8; 1024]`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#const_static_lifetime
[INFO] [stderr] 
[INFO] [stderr] warning: Constants have by default a `'static` lifetime
[INFO] [stderr]   --> src/types.rs:19:23
[INFO] [stderr]    |
[INFO] [stderr] 19 | const PUBSUB_PREFIX: &'static str = "message";
[INFO] [stderr]    |                      -^^^^^^^---- help: consider removing `'static`: `&str`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#const_static_lifetime
[INFO] [stderr] 
[INFO] [stderr] warning: Constants have by default a `'static` lifetime
[INFO] [stderr]   --> src/utils.rs:14:18
[INFO] [stderr]    |
[INFO] [stderr] 14 | pub const CRLF: &'static str = "\r\n";
[INFO] [stderr]    |                 -^^^^^^^---- help: consider removing `'static`: `&str`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::const_static_lifetime)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#const_static_lifetime
[INFO] [stderr] 
[INFO] [stderr] warning: Constants have by default a `'static` lifetime
[INFO] [stderr]   --> src/utils.rs:16:18
[INFO] [stderr]    |
[INFO] [stderr] 16 | pub const NULL: &'static str = "$-1\r\n";
[INFO] [stderr]    |                 -^^^^^^^---- help: consider removing `'static`: `&str`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#const_static_lifetime
[INFO] [stderr] 
[INFO] [stderr] warning: Constants have by default a `'static` lifetime
[INFO] [stderr]   --> src/utils.rs:21:23
[INFO] [stderr]    |
[INFO] [stderr] 21 | pub const ZEROED_KB: &'static [u8; 1024] = &[0; 1024];
[INFO] [stderr]    |                      -^^^^^^^----------- help: consider removing `'static`: `&[u8; 1024]`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#const_static_lifetime
[INFO] [stderr] 
[INFO] [stderr] warning: Constants have by default a `'static` lifetime
[INFO] [stderr]   --> src/types.rs:19:23
[INFO] [stderr]    |
[INFO] [stderr] 19 | const PUBSUB_PREFIX: &'static str = "message";
[INFO] [stderr]    |                      -^^^^^^^---- help: consider removing `'static`: `&str`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#const_static_lifetime
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `::types::*`
[INFO] [stderr]    --> src/encode.rs:111:7
[INFO] [stderr]     |
[INFO] [stderr] 111 |   use ::types::*;
[INFO] [stderr]     |       ^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(unused_imports)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: Constants have by default a `'static` lifetime
[INFO] [stderr]    --> src/encode.rs:113:19
[INFO] [stderr]     |
[INFO] [stderr] 113 |   const PADDING: &'static str = "foobar";
[INFO] [stderr]     |                  -^^^^^^^---- help: consider removing `'static`: `&str`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#const_static_lifetime
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `::utils`
[INFO] [stderr]    --> src/decode.rs:143:7
[INFO] [stderr]     |
[INFO] [stderr] 143 |   use ::utils;
[INFO] [stderr]     |       ^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `::types::*`
[INFO] [stderr]    --> src/decode.rs:144:7
[INFO] [stderr]     |
[INFO] [stderr] 144 |   use ::types::*;
[INFO] [stderr]     |       ^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::fmt`
[INFO] [stderr]    --> src/decode.rs:146:7
[INFO] [stderr]     |
[INFO] [stderr] 146 |   use std::fmt;
[INFO] [stderr]     |       ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `nom::Err as NomError`
[INFO] [stderr]    --> src/decode.rs:149:7
[INFO] [stderr]     |
[INFO] [stderr] 149 |   use nom::Err as NomError;
[INFO] [stderr]     |       ^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `nom::simple_errors::Context`
[INFO] [stderr]    --> src/decode.rs:150:7
[INFO] [stderr]     |
[INFO] [stderr] 150 |   use nom::simple_errors::Context;
[INFO] [stderr]     |       ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: Constants have by default a `'static` lifetime
[INFO] [stderr]    --> src/decode.rs:152:19
[INFO] [stderr]     |
[INFO] [stderr] 152 |   const PADDING: &'static str = "FOOBARBAZ";
[INFO] [stderr]     |                  -^^^^^^^---- help: consider removing `'static`: `&str`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#const_static_lifetime
[INFO] [stderr] 
[INFO] [stderr] warning: writing `&Vec<_>` instead of `&[_]` involves one more reference and cannot be used with non-Vec-based slices.
[INFO] [stderr]   --> src/utils.rs:48:33
[INFO] [stderr]    |
[INFO] [stderr] 48 | pub fn array_encode_len(frames: &Vec<Frame>) -> Result<usize, GenError> {
[INFO] [stderr]    |                                 ^^^^^^^^^^^ help: change this to: `&[Frame]`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::ptr_arg)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#ptr_arg
[INFO] [stderr] 
[INFO] [stderr] warning: an inclusive range would be more readable
[INFO] [stderr]    --> src/utils.rs:117:23
[INFO] [stderr]     |
[INFO] [stderr] 117 |     crc16_xmodem(&key[i+1..i+j+1])
[INFO] [stderr]     |                       ^^^^^^^^^^ help: use: `i+1..=i+j`
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(clippy::range_plus_one)] on by default
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#range_plus_one
[INFO] [stderr] 
[INFO] [stderr] warning: single-character string constant used as pattern
[INFO] [stderr]    --> src/utils.rs:126:42
[INFO] [stderr]     |
[INFO] [stderr] 126 |     let parts: Vec<&str> = payload.split(" ").collect();
[INFO] [stderr]     |                                          ^^^ help: try using a char instead: `' '`
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(clippy::single_char_pattern)] on by default
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#single_char_pattern
[INFO] [stderr] 
[INFO] [stderr] warning: single-character string constant used as pattern
[INFO] [stderr]    --> src/utils.rs:129:42
[INFO] [stderr]     |
[INFO] [stderr] 129 |     let parts: Vec<&str> = payload.split(" ").collect();
[INFO] [stderr]     |                                          ^^^ help: try using a char instead: `' '`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#single_char_pattern
[INFO] [stderr] 
[INFO] [stderr] warning: use as_ref() instead
[INFO] [stderr]   --> src/types.rs:85:5
[INFO] [stderr]    |
[INFO] [stderr] 85 | /     match self.context {
[INFO] [stderr] 86 | |       Some(ref c) => Some(c),
[INFO] [stderr] 87 | |       None => None
[INFO] [stderr] 88 | |     }
[INFO] [stderr]    | |_____^ help: try this: `self.context.as_ref()`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::match_as_ref)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#match_as_ref
[INFO] [stderr] 
[INFO] [stderr] warning: this let-binding has unit value. Consider omitting `let _ =`
[INFO] [stderr]   --> src/encode.rs:14:3
[INFO] [stderr]    |
[INFO] [stderr] 14 |   let _ = utils::check_offset(&x)?;
[INFO] [stderr]    |   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::let_unit_value)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#let_unit_value
[INFO] [stderr] 
[INFO] [stderr] warning: this let-binding has unit value. Consider omitting `let _ =`
[INFO] [stderr]   --> src/encode.rs:33:3
[INFO] [stderr]    |
[INFO] [stderr] 33 |   let _ = utils::check_offset(&x)?;
[INFO] [stderr]    |   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#let_unit_value
[INFO] [stderr] 
[INFO] [stderr] warning: writing `&Vec<_>` instead of `&[_]` involves one more reference and cannot be used with non-Vec-based slices.
[INFO] [stderr]   --> src/encode.rs:45:50
[INFO] [stderr]    |
[INFO] [stderr] 45 | fn gen_array<'a>(x: (&'a mut [u8], usize), data: &Vec<Frame>) -> Result<(&'a mut [u8], usize), GenError> {
[INFO] [stderr]    |                                                  ^^^^^^^^^^^ help: change this to: `&[Frame]`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#ptr_arg
[INFO] [stderr] 
[INFO] [stderr] warning: this let-binding has unit value. Consider omitting `let _ =`
[INFO] [stderr]   --> src/encode.rs:46:3
[INFO] [stderr]    |
[INFO] [stderr] 46 |   let _ = utils::check_offset(&x)?;
[INFO] [stderr]    |   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#let_unit_value
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `s`
[INFO] [stderr]    --> src/types.rs:360:9
[INFO] [stderr]     |
[INFO] [stderr] 360 |     let s = e.to_string();
[INFO] [stderr]     |         ^ help: consider using `_s` instead
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(unused_variables)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `s`
[INFO] [stderr]    --> src/types.rs:370:9
[INFO] [stderr]     |
[INFO] [stderr] 370 |     let s = e.to_string();
[INFO] [stderr]     |         ^ help: consider using `_s` instead
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `s`
[INFO] [stderr]    --> src/types.rs:380:9
[INFO] [stderr]     |
[INFO] [stderr] 380 |     let s = e.to_string();
[INFO] [stderr]     |         ^ help: consider using `_s` instead
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `s`
[INFO] [stderr]    --> src/types.rs:390:9
[INFO] [stderr]     |
[INFO] [stderr] 390 |     let s = e.to_string();
[INFO] [stderr]     |         ^ help: consider using `_s` instead
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/decode.rs:297:9
[INFO] [stderr]     |
[INFO] [stderr] 297 |     let mut bytes: BytesMut = "foobarbazwibblewobble".into();
[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: `to_bytes`
[INFO] [stderr]    --> src/encode.rs:119:3
[INFO] [stderr]     |
[INFO] [stderr] 119 |   fn to_bytes(s: &str) -> BytesMut {
[INFO] [stderr]     |   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(dead_code)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `to_bytes`
[INFO] [stderr]    --> src/decode.rs:158:3
[INFO] [stderr]     |
[INFO] [stderr] 158 |   fn to_bytes(s: &str) -> BytesMut {
[INFO] [stderr]     |   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `empty_bytes`
[INFO] [stderr]    --> src/decode.rs:162:3
[INFO] [stderr]     |
[INFO] [stderr] 162 |   fn empty_bytes() -> BytesMut {
[INFO] [stderr]     |   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: writing `&Vec<_>` instead of `&[_]` involves one more reference and cannot be used with non-Vec-based slices.
[INFO] [stderr]   --> src/utils.rs:48:33
[INFO] [stderr]    |
[INFO] [stderr] 48 | pub fn array_encode_len(frames: &Vec<Frame>) -> Result<usize, GenError> {
[INFO] [stderr]    |                                 ^^^^^^^^^^^ help: change this to: `&[Frame]`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::ptr_arg)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#ptr_arg
[INFO] [stderr] 
[INFO] [stderr] warning: an inclusive range would be more readable
[INFO] [stderr]    --> src/utils.rs:117:23
[INFO] [stderr]     |
[INFO] [stderr] 117 |     crc16_xmodem(&key[i+1..i+j+1])
[INFO] [stderr]     |                       ^^^^^^^^^^ help: use: `i+1..=i+j`
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(clippy::range_plus_one)] on by default
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#range_plus_one
[INFO] [stderr] 
[INFO] [stderr] warning: single-character string constant used as pattern
[INFO] [stderr]    --> src/utils.rs:126:42
[INFO] [stderr]     |
[INFO] [stderr] 126 |     let parts: Vec<&str> = payload.split(" ").collect();
[INFO] [stderr]     |                                          ^^^ help: try using a char instead: `' '`
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(clippy::single_char_pattern)] on by default
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#single_char_pattern
[INFO] [stderr] 
[INFO] [stderr] warning: single-character string constant used as pattern
[INFO] [stderr]    --> src/utils.rs:129:42
[INFO] [stderr]     |
[INFO] [stderr] 129 |     let parts: Vec<&str> = payload.split(" ").collect();
[INFO] [stderr]     |                                          ^^^ help: try using a char instead: `' '`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#single_char_pattern
[INFO] [stderr] 
[INFO] [stderr] warning: use as_ref() instead
[INFO] [stderr]   --> src/types.rs:85:5
[INFO] [stderr]    |
[INFO] [stderr] 85 | /     match self.context {
[INFO] [stderr] 86 | |       Some(ref c) => Some(c),
[INFO] [stderr] 87 | |       None => None
[INFO] [stderr] 88 | |     }
[INFO] [stderr]    | |_____^ help: try this: `self.context.as_ref()`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::match_as_ref)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#match_as_ref
[INFO] [stderr] 
[INFO] [stderr] warning: the function has a cyclomatic complexity of 49
[INFO] [stderr]    --> src/types.rs:422:3
[INFO] [stderr]     |
[INFO] [stderr] 422 | /   fn should_check_frame_types() {
[INFO] [stderr] 423 | |     let f = Frame::Null;
[INFO] [stderr] 424 | |     assert!(f.is_null());
[INFO] [stderr] 425 | |     assert!(!f.is_string());
[INFO] [stderr] ...   |
[INFO] [stderr] 485 | |     assert!(f.is_moved_or_ask_error());
[INFO] [stderr] 486 | |   }
[INFO] [stderr]     | |___^
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(clippy::cyclomatic_complexity)] on by default
[INFO] [stderr]     = help: you could split it up into multiple smaller functions
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#cyclomatic_complexity
[INFO] [stderr] 
[INFO] [stderr] warning: calling `as_bytes()` on a string literal
[INFO] [stderr]    --> src/types.rs:431:31
[INFO] [stderr]     |
[INFO] [stderr] 431 |     let f = Frame::BulkString("foo".as_bytes().to_vec());
[INFO] [stderr]     |                               ^^^^^^^^^^^^^^^^ help: consider using a byte string literal instead: `b"foo"`
[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: this let-binding has unit value. Consider omitting `let _ =`
[INFO] [stderr]   --> src/encode.rs:14:3
[INFO] [stderr]    |
[INFO] [stderr] 14 |   let _ = utils::check_offset(&x)?;
[INFO] [stderr]    |   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::let_unit_value)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#let_unit_value
[INFO] [stderr] 
[INFO] [stderr] warning: this let-binding has unit value. Consider omitting `let _ =`
[INFO] [stderr]   --> src/encode.rs:33:3
[INFO] [stderr]    |
[INFO] [stderr] 33 |   let _ = utils::check_offset(&x)?;
[INFO] [stderr]    |   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#let_unit_value
[INFO] [stderr] 
[INFO] [stderr] warning: writing `&Vec<_>` instead of `&[_]` involves one more reference and cannot be used with non-Vec-based slices.
[INFO] [stderr]   --> src/encode.rs:45:50
[INFO] [stderr]    |
[INFO] [stderr] 45 | fn gen_array<'a>(x: (&'a mut [u8], usize), data: &Vec<Frame>) -> Result<(&'a mut [u8], usize), GenError> {
[INFO] [stderr]    |                                                  ^^^^^^^^^^^ help: change this to: `&[Frame]`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#ptr_arg
[INFO] [stderr] 
[INFO] [stderr] warning: this let-binding has unit value. Consider omitting `let _ =`
[INFO] [stderr]   --> src/encode.rs:46:3
[INFO] [stderr]    |
[INFO] [stderr] 46 |   let _ = utils::check_offset(&x)?;
[INFO] [stderr]    |   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#let_unit_value
[INFO] [stderr] 
[INFO] [stderr] warning: redundant closure found
[INFO] [stderr]    --> src/decode.rs:298:42
[INFO] [stderr]     |
[INFO] [stderr] 298 |     let _ = decode_bytes(&bytes).map_err(|e| pretty_print_panic(e));
[INFO] [stderr]     |                                          ^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove closure as shown: `pretty_print_panic`
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(clippy::redundant_closure)] on by default
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#redundant_closure
[INFO] [stderr] 
[INFO] [stderr] error[E0554]: #![feature] may not be used on the stable release channel
[INFO] [stderr]  --> benches/decode.rs:1:1
[INFO] [stderr]   |
[INFO] [stderr] 1 | #![feature(test)]
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to previous error
[INFO] [stderr] 
[INFO] [stderr] For more information about this error, try `rustc --explain E0554`.
[INFO] [stderr] error: Could not compile `redis-protocol`.
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error[E0554]: #![feature] may not be used on the stable release channel
[INFO] [stderr]  --> benches/encode.rs:1:1
[INFO] [stderr]   |
[INFO] [stderr] 1 | #![feature(test)]
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to previous error
[INFO] [stderr] 
[INFO] [stderr] For more information about this error, try `rustc --explain E0554`.
[INFO] [stderr] error: Could not compile `redis-protocol`.
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error[E0554]: #![feature] may not be used on the stable release channel
[INFO] [stderr]  --> benches/utils.rs:1:1
[INFO] [stderr]   |
[INFO] [stderr] 1 | #![feature(test)]
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to previous error
[INFO] [stderr] 
[INFO] [stderr] For more information about this error, try `rustc --explain E0554`.
[INFO] [stderr] error: Could not compile `redis-protocol`.
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `"docker" "inspect" "edbe0b2efc27ea00b94237669a6f28e5211da488ee56a517184f707891213948"`
[INFO] running `"docker" "rm" "-f" "edbe0b2efc27ea00b94237669a6f28e5211da488ee56a517184f707891213948"`
[INFO] [stdout] edbe0b2efc27ea00b94237669a6f28e5211da488ee56a517184f707891213948