[INFO] updating cached repository mouri111/meta-text
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/mouri111/meta-text
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/mouri111/meta-text" "work/ex/clippy-test-run/sources/stable/gh/mouri111/meta-text"`
[INFO] [stderr] Cloning into 'work/ex/clippy-test-run/sources/stable/gh/mouri111/meta-text'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/mouri111/meta-text" "work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/gh/mouri111/meta-text"`
[INFO] [stderr] Cloning into 'work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/gh/mouri111/meta-text'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] ae2c348228393087aed913bc98fa374afa2b246d
[INFO] sha for GitHub repo mouri111/meta-text: ae2c348228393087aed913bc98fa374afa2b246d
[INFO] validating manifest of mouri111/meta-text 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 mouri111/meta-text 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 mouri111/meta-text
[INFO] finished frobbing mouri111/meta-text
[INFO] frobbed toml for mouri111/meta-text written to work/ex/clippy-test-run/sources/stable/gh/mouri111/meta-text/Cargo.toml
[INFO] started frobbing mouri111/meta-text
[INFO] finished frobbing mouri111/meta-text
[INFO] frobbed toml for mouri111/meta-text written to work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/gh/mouri111/meta-text/Cargo.toml
[INFO] crate mouri111/meta-text 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 mouri111/meta-text 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-1/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/mouri111/meta-text:/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] a51ab95c97ae0cb35b22b61549bebee18958a2f05f311312825d36feac3a022e
[INFO] running `"docker" "start" "-a" "a51ab95c97ae0cb35b22b61549bebee18958a2f05f311312825d36feac3a022e"`
[INFO] [stderr]     Checking meta-text v0.4.0 (/opt/crater/workdir)
[INFO] [stderr] warning: returning the result of a let binding from a block. Consider returning the expression directly.
[INFO] [stderr]   --> src/parser/mod.rs:20:5
[INFO] [stderr]    |
[INFO] [stderr] 20 |     res
[INFO] [stderr]    |     ^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::let_and_return)] on by default
[INFO] [stderr] note: this expression can be directly returned
[INFO] [stderr]   --> src/parser/mod.rs:19:15
[INFO] [stderr]    |
[INFO] [stderr] 19 |     let res = AST::Seq(xs);
[INFO] [stderr]    |               ^^^^^^^^^^^^
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#let_and_return
[INFO] [stderr] 
[INFO] [stderr] warning: returning the result of a let binding from a block. Consider returning the expression directly.
[INFO] [stderr]   --> src/parser/mod.rs:20:5
[INFO] [stderr]    |
[INFO] [stderr] 20 |     res
[INFO] [stderr]    |     ^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::let_and_return)] on by default
[INFO] [stderr] note: this expression can be directly returned
[INFO] [stderr]   --> src/parser/mod.rs:19:15
[INFO] [stderr]    |
[INFO] [stderr] 19 |     let res = AST::Seq(xs);
[INFO] [stderr]    |               ^^^^^^^^^^^^
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#let_and_return
[INFO] [stderr] 
[INFO] [stderr] warning: you should consider adding a `Default` implementation for `types::ast::AST`
[INFO] [stderr]   --> src/types/ast.rs:13:5
[INFO] [stderr]    |
[INFO] [stderr] 13 | /     pub fn new() -> AST {
[INFO] [stderr] 14 | |         AST::Empty
[INFO] [stderr] 15 | |     }
[INFO] [stderr]    | |_____^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::new_without_default)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#new_without_default
[INFO] [stderr] help: try this
[INFO] [stderr]    |
[INFO] [stderr] 12 | impl Default for types::ast::AST {
[INFO] [stderr] 13 |     fn default() -> Self {
[INFO] [stderr] 14 |         Self::new()
[INFO] [stderr] 15 |     }
[INFO] [stderr] 16 | }
[INFO] [stderr]    |
[INFO] [stderr] 
[INFO] [stderr] warning: this argument is passed by reference, but would be more efficient if passed by value
[INFO] [stderr]  --> src/types/precedence.rs:9:17
[INFO] [stderr]   |
[INFO] [stderr] 9 |     pub fn cont(&self, prec: &Precedence) -> bool {
[INFO] [stderr]   |                 ^^^^^ help: consider passing by value instead: `self`
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(clippy::trivially_copy_pass_by_ref)] on by default
[INFO] [stderr]   = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#trivially_copy_pass_by_ref
[INFO] [stderr] 
[INFO] [stderr] warning: this argument is passed by reference, but would be more efficient if passed by value
[INFO] [stderr]  --> src/types/precedence.rs:9:30
[INFO] [stderr]   |
[INFO] [stderr] 9 |     pub fn cont(&self, prec: &Precedence) -> bool {
[INFO] [stderr]   |                              ^^^^^^^^^^^ help: consider passing by value instead: `Precedence`
[INFO] [stderr]   |
[INFO] [stderr]   = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#trivially_copy_pass_by_ref
[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/lexer/mod.rs:23:16
[INFO] [stderr]    |
[INFO] [stderr] 23 | pub fn lex(ss: &Vec<char>) -> Vec<Token> {
[INFO] [stderr]    |                ^^^^^^^^^^ help: change this to: `&[char]`
[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: this loop could be written as a `for` loop
[INFO] [stderr]   --> src/parser/mod.rs:10:28
[INFO] [stderr]    |
[INFO] [stderr] 10 |     while let Some(head) = iter.next() {
[INFO] [stderr]    |                            ^^^^^^^^^^^ help: try: `for head in iter { .. }`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::while_let_on_iterator)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#while_let_on_iterator
[INFO] [stderr] 
[INFO] [stderr] warning: you seem to be trying to use match for destructuring a single pattern. Consider using `if let`
[INFO] [stderr]   --> src/parser/mod.rs:11:9
[INFO] [stderr]    |
[INFO] [stderr] 11 | /         match head {
[INFO] [stderr] 12 | |             Token::STRING(_) => {
[INFO] [stderr] 13 | |                 xs.push(Box::new(AST::String(head.clone())));
[INFO] [stderr] 14 | |             }
[INFO] [stderr] 15 | |             _ => {
[INFO] [stderr] 16 | |             }
[INFO] [stderr] 17 | |         }
[INFO] [stderr]    | |_________^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::single_match)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#single_match
[INFO] [stderr] help: try this
[INFO] [stderr]    |
[INFO] [stderr] 11 |         if let Token::STRING(_) = head {
[INFO] [stderr] 12 |     xs.push(Box::new(AST::String(head.clone())));
[INFO] [stderr] 13 | }
[INFO] [stderr]    |
[INFO] [stderr] 
[INFO] [stderr] warning: you seem to be trying to use match for destructuring a single pattern. Consider using `if let`
[INFO] [stderr]   --> src/render/mod.rs:22:13
[INFO] [stderr]    |
[INFO] [stderr] 22 | /             match token {
[INFO] [stderr] 23 | |                 Token::STRING(ss) => {
[INFO] [stderr] 24 | |                     let n = ss.len();
[INFO] [stderr] 25 | |                     let mut exp_buf: Vec<char> = vec![];
[INFO] [stderr] ...  |
[INFO] [stderr] 55 | |                 }
[INFO] [stderr] 56 | |             }
[INFO] [stderr]    | |_____________^
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#single_match
[INFO] [stderr] help: try this
[INFO] [stderr]    |
[INFO] [stderr] 22 |             if let Token::STRING(ss) = token {
[INFO] [stderr] 23 |     let n = ss.len();
[INFO] [stderr] 24 |     let mut exp_buf: Vec<char> = vec![];
[INFO] [stderr] 25 |     let mut exp_mode = false;
[INFO] [stderr] 26 |     for i in 1..n-1 {
[INFO] [stderr] 27 |         if ss[i] == '{' {
[INFO] [stderr]  ...
[INFO] [stderr] 
[INFO] [stderr] warning: the loop variable `i` is only used to index `ss`.
[INFO] [stderr]   --> src/render/mod.rs:27:30
[INFO] [stderr]    |
[INFO] [stderr] 27 |                     for i in 1..n-1 {
[INFO] [stderr]    |                              ^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::needless_range_loop)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_range_loop
[INFO] [stderr] help: consider using an iterator
[INFO] [stderr]    |
[INFO] [stderr] 27 |                     for <item> in ss.iter().take(n-1).skip(1) {
[INFO] [stderr]    |                         ^^^^^^    ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: you should consider adding a `Default` implementation for `types::ast::AST`
[INFO] [stderr]   --> src/types/ast.rs:13:5
[INFO] [stderr]    |
[INFO] [stderr] 13 | /     pub fn new() -> AST {
[INFO] [stderr] 14 | |         AST::Empty
[INFO] [stderr] 15 | |     }
[INFO] [stderr]    | |_____^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::new_without_default)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#new_without_default
[INFO] [stderr] help: try this
[INFO] [stderr]    |
[INFO] [stderr] 12 | impl Default for types::ast::AST {
[INFO] [stderr] 13 |     fn default() -> Self {
[INFO] [stderr] 14 |         Self::new()
[INFO] [stderr] 15 |     }
[INFO] [stderr] 16 | }
[INFO] [stderr]    |
[INFO] [stderr] 
[INFO] [stderr] warning: this argument is passed by reference, but would be more efficient if passed by value
[INFO] [stderr]  --> src/types/precedence.rs:9:17
[INFO] [stderr]   |
[INFO] [stderr] 9 |     pub fn cont(&self, prec: &Precedence) -> bool {
[INFO] [stderr]   |                 ^^^^^ help: consider passing by value instead: `self`
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(clippy::trivially_copy_pass_by_ref)] on by default
[INFO] [stderr]   = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#trivially_copy_pass_by_ref
[INFO] [stderr] 
[INFO] [stderr] warning: this argument is passed by reference, but would be more efficient if passed by value
[INFO] [stderr]  --> src/types/precedence.rs:9:30
[INFO] [stderr]   |
[INFO] [stderr] 9 |     pub fn cont(&self, prec: &Precedence) -> bool {
[INFO] [stderr]   |                              ^^^^^^^^^^^ help: consider passing by value instead: `Precedence`
[INFO] [stderr]   |
[INFO] [stderr]   = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#trivially_copy_pass_by_ref
[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/lexer/mod.rs:23:16
[INFO] [stderr]    |
[INFO] [stderr] 23 | pub fn lex(ss: &Vec<char>) -> Vec<Token> {
[INFO] [stderr]    |                ^^^^^^^^^^ help: change this to: `&[char]`
[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: this loop could be written as a `for` loop
[INFO] [stderr]   --> src/parser/mod.rs:10:28
[INFO] [stderr]    |
[INFO] [stderr] 10 |     while let Some(head) = iter.next() {
[INFO] [stderr]    |                            ^^^^^^^^^^^ help: try: `for head in iter { .. }`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::while_let_on_iterator)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#while_let_on_iterator
[INFO] [stderr] 
[INFO] [stderr] warning: you seem to be trying to use match for destructuring a single pattern. Consider using `if let`
[INFO] [stderr]   --> src/parser/mod.rs:11:9
[INFO] [stderr]    |
[INFO] [stderr] 11 | /         match head {
[INFO] [stderr] 12 | |             Token::STRING(_) => {
[INFO] [stderr] 13 | |                 xs.push(Box::new(AST::String(head.clone())));
[INFO] [stderr] 14 | |             }
[INFO] [stderr] 15 | |             _ => {
[INFO] [stderr] 16 | |             }
[INFO] [stderr] 17 | |         }
[INFO] [stderr]    | |_________^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::single_match)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#single_match
[INFO] [stderr] help: try this
[INFO] [stderr]    |
[INFO] [stderr] 11 |         if let Token::STRING(_) = head {
[INFO] [stderr] 12 |     xs.push(Box::new(AST::String(head.clone())));
[INFO] [stderr] 13 | }
[INFO] [stderr]    |
[INFO] [stderr] 
[INFO] [stderr] warning: you seem to be trying to use match for destructuring a single pattern. Consider using `if let`
[INFO] [stderr]   --> src/render/mod.rs:22:13
[INFO] [stderr]    |
[INFO] [stderr] 22 | /             match token {
[INFO] [stderr] 23 | |                 Token::STRING(ss) => {
[INFO] [stderr] 24 | |                     let n = ss.len();
[INFO] [stderr] 25 | |                     let mut exp_buf: Vec<char> = vec![];
[INFO] [stderr] ...  |
[INFO] [stderr] 55 | |                 }
[INFO] [stderr] 56 | |             }
[INFO] [stderr]    | |_____________^
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#single_match
[INFO] [stderr] help: try this
[INFO] [stderr]    |
[INFO] [stderr] 22 |             if let Token::STRING(ss) = token {
[INFO] [stderr] 23 |     let n = ss.len();
[INFO] [stderr] 24 |     let mut exp_buf: Vec<char> = vec![];
[INFO] [stderr] 25 |     let mut exp_mode = false;
[INFO] [stderr] 26 |     for i in 1..n-1 {
[INFO] [stderr] 27 |         if ss[i] == '{' {
[INFO] [stderr]  ...
[INFO] [stderr] 
[INFO] [stderr] warning: the loop variable `i` is only used to index `ss`.
[INFO] [stderr]   --> src/render/mod.rs:27:30
[INFO] [stderr]    |
[INFO] [stderr] 27 |                     for i in 1..n-1 {
[INFO] [stderr]    |                              ^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::needless_range_loop)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_range_loop
[INFO] [stderr] help: consider using an iterator
[INFO] [stderr]    |
[INFO] [stderr] 27 |                     for <item> in ss.iter().take(n-1).skip(1) {
[INFO] [stderr]    |                         ^^^^^^    ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] error[E0554]: #![feature] may not be used on the stable release channel
[INFO] [stderr]  --> benches/bench.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 `meta-text`.
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] warning: an inclusive range would be more readable
[INFO] [stderr]   --> tests/test.rs:33:14
[INFO] [stderr]    |
[INFO] [stderr] 33 |     for i in 1..10+1 {
[INFO] [stderr]    |              ^^^^^^^ help: use: `1..=10`
[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] error: build failed
[INFO] running `"docker" "inspect" "a51ab95c97ae0cb35b22b61549bebee18958a2f05f311312825d36feac3a022e"`
[INFO] running `"docker" "rm" "-f" "a51ab95c97ae0cb35b22b61549bebee18958a2f05f311312825d36feac3a022e"`
[INFO] [stdout] a51ab95c97ae0cb35b22b61549bebee18958a2f05f311312825d36feac3a022e