[INFO] updating cached repository darksv/futon
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/darksv/futon
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/darksv/futon" "work/ex/clippy-test-run/sources/stable/gh/darksv/futon"`
[INFO] [stderr] Cloning into 'work/ex/clippy-test-run/sources/stable/gh/darksv/futon'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/darksv/futon" "work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/gh/darksv/futon"`
[INFO] [stderr] Cloning into 'work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/gh/darksv/futon'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] c1641aa859df9f05a202bc5e0d9416009fefa051
[INFO] sha for GitHub repo darksv/futon: c1641aa859df9f05a202bc5e0d9416009fefa051
[INFO] validating manifest of darksv/futon 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 darksv/futon 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 darksv/futon
[INFO] finished frobbing darksv/futon
[INFO] frobbed toml for darksv/futon written to work/ex/clippy-test-run/sources/stable/gh/darksv/futon/Cargo.toml
[INFO] started frobbing darksv/futon
[INFO] finished frobbing darksv/futon
[INFO] frobbed toml for darksv/futon written to work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/gh/darksv/futon/Cargo.toml
[INFO] crate darksv/futon 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 darksv/futon against stable for clippy-test-run
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/clippy-test-run/worker-5/stable:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/clippy-test-run/sources/stable/gh/darksv/futon:/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] bf9460cf56ac677d940fe364448d44b2692dba2777aa1567a6bea098fe5b03c3
[INFO] running `"docker" "start" "-a" "bf9460cf56ac677d940fe364448d44b2692dba2777aa1567a6bea098fe5b03c3"`
[INFO] [stderr]     Checking untitled v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: unneeded return statement
[INFO] [stderr]    --> src/parser.rs:327:9
[INFO] [stderr]     |
[INFO] [stderr] 327 |         return true;
[INFO] [stderr]     |         ^^^^^^^^^^^^ help: remove `return` as shown: `true`
[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: unused import: `PunctKind`
[INFO] [stderr]    --> src/lexer.rs:540:87
[INFO] [stderr]     |
[INFO] [stderr] 540 |     use super::{Lexer, LexerError, Token, SourceSpan, TokenType, TokenValue, Keyword, PunctKind};
[INFO] [stderr]     |                                                                                       ^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(unused_imports)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unneeded return statement
[INFO] [stderr]    --> src/parser.rs:327:9
[INFO] [stderr]     |
[INFO] [stderr] 327 |         return true;
[INFO] [stderr]     |         ^^^^^^^^^^^^ help: remove `return` as shown: `true`
[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: method is never used: `from_str`
[INFO] [stderr]    --> src/lexer.rs:235:5
[INFO] [stderr]     |
[INFO] [stderr] 235 |     pub fn from_str(str: &'a str, line: usize, column: usize) -> SourceSpan<'a> {
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(dead_code)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: you don't need to add `&` to all patterns
[INFO] [stderr]   --> src/lexer.rs:12:17
[INFO] [stderr]    |
[INFO] [stderr] 12 | /                 match self {
[INFO] [stderr] 13 | |                     $(&Keyword::$name => write!(f, $val)?),*
[INFO] [stderr] 14 | |                 }
[INFO] [stderr]    | |_________________^
[INFO] [stderr] ...
[INFO] [stderr] 30 | / keywords! {
[INFO] [stderr] 31 | |     "if" => If,
[INFO] [stderr] 32 | |     "else" => Else,
[INFO] [stderr] 33 | |     "for" => For,
[INFO] [stderr] ...  |
[INFO] [stderr] 42 | |     "in" => In
[INFO] [stderr] 43 | | }
[INFO] [stderr]    | |_- in this macro invocation
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::match_ref_pats)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#match_ref_pats
[INFO] [stderr] 
[INFO] [stderr] warning: you don't need to add `&` to all patterns
[INFO] [stderr]   --> src/parser.rs:56:9
[INFO] [stderr]    |
[INFO] [stderr] 56 | /         match self {
[INFO] [stderr] 57 | |             &ParseError::UnexpectedToken(actual, line, column, None) => {
[INFO] [stderr] 58 | |                 write!(f, "Unexpected {:?} at {}:{}", actual, line, column)?
[INFO] [stderr] 59 | |             }
[INFO] [stderr] ...  |
[INFO] [stderr] 62 | |             }
[INFO] [stderr] 63 | |         }
[INFO] [stderr]    | |_________^
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#match_ref_pats
[INFO] [stderr] help: instead of prefixing all patterns with `&`, you can dereference the expression
[INFO] [stderr]    |
[INFO] [stderr] 56 |         match *self {
[INFO] [stderr] 57 |             ParseError::UnexpectedToken(actual, line, column, None) => {
[INFO] [stderr] 58 |                 write!(f, "Unexpected {:?} at {}:{}", actual, line, column)?
[INFO] [stderr] 59 |             }
[INFO] [stderr] 60 |             ParseError::UnexpectedToken(actual, line, column, Some(expected)) => {
[INFO] [stderr]    |
[INFO] [stderr] 
[INFO] [stderr] warning: you don't need to add `&` to all patterns
[INFO] [stderr]   --> src/lexer.rs:12:17
[INFO] [stderr]    |
[INFO] [stderr] 12 | /                 match self {
[INFO] [stderr] 13 | |                     $(&Keyword::$name => write!(f, $val)?),*
[INFO] [stderr] 14 | |                 }
[INFO] [stderr]    | |_________________^
[INFO] [stderr] ...
[INFO] [stderr] 30 | / keywords! {
[INFO] [stderr] 31 | |     "if" => If,
[INFO] [stderr] 32 | |     "else" => Else,
[INFO] [stderr] 33 | |     "for" => For,
[INFO] [stderr] ...  |
[INFO] [stderr] 42 | |     "in" => In
[INFO] [stderr] 43 | | }
[INFO] [stderr]    | |_- in this macro invocation
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::match_ref_pats)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#match_ref_pats
[INFO] [stderr] 
[INFO] [stderr] warning: you don't need to add `&` to all patterns
[INFO] [stderr]   --> src/parser.rs:56:9
[INFO] [stderr]    |
[INFO] [stderr] 56 | /         match self {
[INFO] [stderr] 57 | |             &ParseError::UnexpectedToken(actual, line, column, None) => {
[INFO] [stderr] 58 | |                 write!(f, "Unexpected {:?} at {}:{}", actual, line, column)?
[INFO] [stderr] 59 | |             }
[INFO] [stderr] ...  |
[INFO] [stderr] 62 | |             }
[INFO] [stderr] 63 | |         }
[INFO] [stderr]    | |_________^
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#match_ref_pats
[INFO] [stderr] help: instead of prefixing all patterns with `&`, you can dereference the expression
[INFO] [stderr]    |
[INFO] [stderr] 56 |         match *self {
[INFO] [stderr] 57 |             ParseError::UnexpectedToken(actual, line, column, None) => {
[INFO] [stderr] 58 |                 write!(f, "Unexpected {:?} at {}:{}", actual, line, column)?
[INFO] [stderr] 59 |             }
[INFO] [stderr] 60 |             ParseError::UnexpectedToken(actual, line, column, Some(expected)) => {
[INFO] [stderr]    |
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.55s
[INFO] running `"docker" "inspect" "bf9460cf56ac677d940fe364448d44b2692dba2777aa1567a6bea098fe5b03c3"`
[INFO] running `"docker" "rm" "-f" "bf9460cf56ac677d940fe364448d44b2692dba2777aa1567a6bea098fe5b03c3"`
[INFO] [stdout] bf9460cf56ac677d940fe364448d44b2692dba2777aa1567a6bea098fe5b03c3