[INFO] updating cached repository SunDoge/prettytoml
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/SunDoge/prettytoml
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/SunDoge/prettytoml" "work/ex/clippy-test-run/sources/stable/gh/SunDoge/prettytoml"`
[INFO] [stderr] Cloning into 'work/ex/clippy-test-run/sources/stable/gh/SunDoge/prettytoml'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/SunDoge/prettytoml" "work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/gh/SunDoge/prettytoml"`
[INFO] [stderr] Cloning into 'work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/gh/SunDoge/prettytoml'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 09210d808548a4b104c28f4de22ac50ad2d037fe
[INFO] sha for GitHub repo SunDoge/prettytoml: 09210d808548a4b104c28f4de22ac50ad2d037fe
[INFO] validating manifest of SunDoge/prettytoml 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 SunDoge/prettytoml 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 SunDoge/prettytoml
[INFO] finished frobbing SunDoge/prettytoml
[INFO] frobbed toml for SunDoge/prettytoml written to work/ex/clippy-test-run/sources/stable/gh/SunDoge/prettytoml/Cargo.toml
[INFO] started frobbing SunDoge/prettytoml
[INFO] finished frobbing SunDoge/prettytoml
[INFO] frobbed toml for SunDoge/prettytoml written to work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/gh/SunDoge/prettytoml/Cargo.toml
[INFO] crate SunDoge/prettytoml 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 SunDoge/prettytoml against stable for clippy-test-run
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/clippy-test-run/worker-7/stable:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/clippy-test-run/sources/stable/gh/SunDoge/prettytoml:/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] f3d7f99b47a970a002a1955afc5ed773f39a467bcde0d963d2fa5e6e8e4315e2
[INFO] running `"docker" "start" "-a" "f3d7f99b47a970a002a1955afc5ed773f39a467bcde0d963d2fa5e6e8e4315e2"`
[INFO] [stderr]     Checking memchr v2.1.0
[INFO] [stderr]     Checking aho-corasick v0.6.8
[INFO] [stderr]     Checking regex v1.0.5
[INFO] [stderr]     Checking prettytoml v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: unused import: `crate::tokens::*`
[INFO] [stderr]    --> src/lexer/mod.rs:118:9
[INFO] [stderr]     |
[INFO] [stderr] 118 |     use crate::tokens::*;
[INFO] [stderr]     |         ^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(unused_imports)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: module has the same name as its containing module
[INFO] [stderr]  --> src/parser/mod.rs:1:1
[INFO] [stderr]   |
[INFO] [stderr] 1 | mod parser;
[INFO] [stderr]   | ^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(clippy::module_inception)] on by default
[INFO] [stderr]   = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#module_inception
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `token_stream`
[INFO] [stderr]  --> src/parser/parser.rs:3:27
[INFO] [stderr]   |
[INFO] [stderr] 3 | pub fn toml_file_elements(token_stream: TokenStream) -> Result<TokenStream, String> {
[INFO] [stderr]   |                           ^^^^^^^^^^^^ help: consider using `_token_stream` instead
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(unused_variables)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `token_stream`
[INFO] [stderr]   --> src/parser/mod.rs:12:23
[INFO] [stderr]    |
[INFO] [stderr] 12 | fn parse_token_stream(token_stream: TokenStream) {}
[INFO] [stderr]    |                       ^^^^^^^^^^^^ help: consider using `_token_stream` instead
[INFO] [stderr] 
[INFO] [stderr] warning: module has the same name as its containing module
[INFO] [stderr]  --> src/parser/mod.rs:1:1
[INFO] [stderr]   |
[INFO] [stderr] 1 | mod parser;
[INFO] [stderr]   | ^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(clippy::module_inception)] on by default
[INFO] [stderr]   = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#module_inception
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `toml_file_elements`
[INFO] [stderr]  --> src/parser/parser.rs:3:1
[INFO] [stderr]   |
[INFO] [stderr] 3 | pub fn toml_file_elements(token_stream: TokenStream) -> Result<TokenStream, String> {
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(dead_code)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: field is never used: `head_index`
[INFO] [stderr]  --> src/parser/tokenstream.rs:5:5
[INFO] [stderr]   |
[INFO] [stderr] 5 |     head_index: usize,
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never used: `tokens`
[INFO] [stderr]  --> src/parser/tokenstream.rs:6:5
[INFO] [stderr]   |
[INFO] [stderr] 6 |     tokens: &'a Vec<Token>,
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `head`
[INFO] [stderr]   --> src/parser/tokenstream.rs:17:5
[INFO] [stderr]    |
[INFO] [stderr] 17 |     pub fn head(&self) -> Option<&Token> {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `tail`
[INFO] [stderr]   --> src/parser/tokenstream.rs:21:5
[INFO] [stderr]    |
[INFO] [stderr] 21 |     pub fn tail(&self) -> TokenStream {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `offset`
[INFO] [stderr]   --> src/parser/tokenstream.rs:28:5
[INFO] [stderr]    |
[INFO] [stderr] 28 |     pub fn offset(&self) -> usize {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `at_end`
[INFO] [stderr]   --> src/parser/tokenstream.rs:32:5
[INFO] [stderr]    |
[INFO] [stderr] 32 |     pub fn at_end(&self) -> bool {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `len`
[INFO] [stderr]   --> src/parser/tokenstream.rs:36:5
[INFO] [stderr]    |
[INFO] [stderr] 36 |     pub fn len(&self) -> usize {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: struct is never constructed: `Capture`
[INFO] [stderr]  --> src/parser/recdesc.rs:3:1
[INFO] [stderr]   |
[INFO] [stderr] 3 | pub struct Capture<'a> {
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `new`
[INFO] [stderr]  --> src/parser/recdesc.rs:8:5
[INFO] [stderr]   |
[INFO] [stderr] 8 |     pub fn new(token_stream: TokenStream) -> Capture {
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `pending_tokens`
[INFO] [stderr]   --> src/parser/recdesc.rs:12:5
[INFO] [stderr]    |
[INFO] [stderr] 12 |     pub fn pending_tokens(&self) -> &TokenStream {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: single-character string constant used as pattern
[INFO] [stderr]   --> src/lexer/mod.rs:78:42
[INFO] [stderr]    |
[INFO] [stderr] 78 |     if is_top_level && !source.ends_with("\n") {
[INFO] [stderr]    |                                          ^^^^ help: try using a char instead: `'\n'`
[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: writing `&Vec<_>` instead of `&[_]` involves one more reference and cannot be used with non-Vec-based slices.
[INFO] [stderr]   --> src/parser/tokenstream.rs:10:24
[INFO] [stderr]    |
[INFO] [stderr] 10 |     pub fn new(tokens: &Vec<Token>) -> TokenStream {
[INFO] [stderr]    |                        ^^^^^^^^^^^ help: change this to: `&[Token]`
[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 let-binding has unit value. Consider omitting `let _elements =`
[INFO] [stderr]   --> src/lib.rs:22:5
[INFO] [stderr]    |
[INFO] [stderr] 22 |     let _elements = parse_tokens(tokens);
[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: unused variable: `token_stream`
[INFO] [stderr]  --> src/parser/parser.rs:3:27
[INFO] [stderr]   |
[INFO] [stderr] 3 | pub fn toml_file_elements(token_stream: TokenStream) -> Result<TokenStream, String> {
[INFO] [stderr]   |                           ^^^^^^^^^^^^ help: consider using `_token_stream` instead
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(unused_variables)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `token_stream`
[INFO] [stderr]   --> src/parser/mod.rs:12:23
[INFO] [stderr]    |
[INFO] [stderr] 12 | fn parse_token_stream(token_stream: TokenStream) {}
[INFO] [stderr]    |                       ^^^^^^^^^^^^ help: consider using `_token_stream` instead
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `toml_file_elements`
[INFO] [stderr]  --> src/parser/parser.rs:3:1
[INFO] [stderr]   |
[INFO] [stderr] 3 | pub fn toml_file_elements(token_stream: TokenStream) -> Result<TokenStream, String> {
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(dead_code)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: field is never used: `head_index`
[INFO] [stderr]  --> src/parser/tokenstream.rs:5:5
[INFO] [stderr]   |
[INFO] [stderr] 5 |     head_index: usize,
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never used: `tokens`
[INFO] [stderr]  --> src/parser/tokenstream.rs:6:5
[INFO] [stderr]   |
[INFO] [stderr] 6 |     tokens: &'a Vec<Token>,
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `head`
[INFO] [stderr]   --> src/parser/tokenstream.rs:17:5
[INFO] [stderr]    |
[INFO] [stderr] 17 |     pub fn head(&self) -> Option<&Token> {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `tail`
[INFO] [stderr]   --> src/parser/tokenstream.rs:21:5
[INFO] [stderr]    |
[INFO] [stderr] 21 |     pub fn tail(&self) -> TokenStream {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `offset`
[INFO] [stderr]   --> src/parser/tokenstream.rs:28:5
[INFO] [stderr]    |
[INFO] [stderr] 28 |     pub fn offset(&self) -> usize {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `at_end`
[INFO] [stderr]   --> src/parser/tokenstream.rs:32:5
[INFO] [stderr]    |
[INFO] [stderr] 32 |     pub fn at_end(&self) -> bool {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `len`
[INFO] [stderr]   --> src/parser/tokenstream.rs:36:5
[INFO] [stderr]    |
[INFO] [stderr] 36 |     pub fn len(&self) -> usize {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: struct is never constructed: `Capture`
[INFO] [stderr]  --> src/parser/recdesc.rs:3:1
[INFO] [stderr]   |
[INFO] [stderr] 3 | pub struct Capture<'a> {
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `new`
[INFO] [stderr]  --> src/parser/recdesc.rs:8:5
[INFO] [stderr]   |
[INFO] [stderr] 8 |     pub fn new(token_stream: TokenStream) -> Capture {
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `pending_tokens`
[INFO] [stderr]   --> src/parser/recdesc.rs:12:5
[INFO] [stderr]    |
[INFO] [stderr] 12 |     pub fn pending_tokens(&self) -> &TokenStream {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: single-character string constant used as pattern
[INFO] [stderr]   --> src/lexer/mod.rs:78:42
[INFO] [stderr]    |
[INFO] [stderr] 78 |     if is_top_level && !source.ends_with("\n") {
[INFO] [stderr]    |                                          ^^^^ help: try using a char instead: `'\n'`
[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: writing `&Vec<_>` instead of `&[_]` involves one more reference and cannot be used with non-Vec-based slices.
[INFO] [stderr]   --> src/parser/tokenstream.rs:10:24
[INFO] [stderr]    |
[INFO] [stderr] 10 |     pub fn new(tokens: &Vec<Token>) -> TokenStream {
[INFO] [stderr]    |                        ^^^^^^^^^^^ help: change this to: `&[Token]`
[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 let-binding has unit value. Consider omitting `let _elements =`
[INFO] [stderr]   --> src/lib.rs:22:5
[INFO] [stderr]    |
[INFO] [stderr] 22 |     let _elements = parse_tokens(tokens);
[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]     Finished dev [unoptimized + debuginfo] target(s) in 9.03s
[INFO] running `"docker" "inspect" "f3d7f99b47a970a002a1955afc5ed773f39a467bcde0d963d2fa5e6e8e4315e2"`
[INFO] running `"docker" "rm" "-f" "f3d7f99b47a970a002a1955afc5ed773f39a467bcde0d963d2fa5e6e8e4315e2"`
[INFO] [stdout] f3d7f99b47a970a002a1955afc5ed773f39a467bcde0d963d2fa5e6e8e4315e2