[INFO] crate cache_control 0.1.0 is already in cache
[INFO] extracting crate cache_control 0.1.0 into work/ex/clippy-test-run/sources/stable/reg/cache_control/0.1.0
[INFO] extracting crate cache_control 0.1.0 into work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/reg/cache_control/0.1.0
[INFO] validating manifest of cache_control-0.1.0 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 cache_control-0.1.0 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 cache_control-0.1.0
[INFO] finished frobbing cache_control-0.1.0
[INFO] frobbed toml for cache_control-0.1.0 written to work/ex/clippy-test-run/sources/stable/reg/cache_control/0.1.0/Cargo.toml
[INFO] started frobbing cache_control-0.1.0
[INFO] finished frobbing cache_control-0.1.0
[INFO] frobbed toml for cache_control-0.1.0 written to work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/reg/cache_control/0.1.0/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 cache_control-0.1.0 against stable for clippy-test-run
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/clippy-test-run/worker-4/stable:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/clippy-test-run/sources/stable/reg/cache_control/0.1.0:/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] bb973dcf27384a727918c89a5a9057342fba5b5dc0a9c48f638fe04b6a85ecf3
[INFO] running `"docker" "start" "-a" "bb973dcf27384a727918c89a5a9057342fba5b5dc0a9c48f638fe04b6a85ecf3"`
[INFO] [stderr]     Checking cache_control v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: single-character string constant used as pattern
[INFO] [stderr]   --> src/lib.rs:55:45
[INFO] [stderr]    |
[INFO] [stderr] 55 |         let tokens: Vec<&str> = value.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/lib.rs:57:52
[INFO] [stderr]    |
[INFO] [stderr] 57 |             let key_value: Vec<&str> = token.split("=").map(|s| s.trim()).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: redundant pattern matching, consider using `is_none()`
[INFO] [stderr]   --> src/lib.rs:67:28
[INFO] [stderr]    |
[INFO] [stderr] 67 |                       if let None = val {
[INFO] [stderr]    |  _____________________-      ^^^^
[INFO] [stderr] 68 | |                         return None;
[INFO] [stderr] 69 | |                     }
[INFO] [stderr]    | |_____________________- help: try this: `if val.is_none()`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::redundant_pattern_matching)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#redundant_pattern_matching
[INFO] [stderr] 
[INFO] [stderr] warning: redundant pattern matching, consider using `is_err()`
[INFO] [stderr]   --> src/lib.rs:72:28
[INFO] [stderr]    |
[INFO] [stderr] 72 |                       if let Err(_) = p_val {
[INFO] [stderr]    |  _____________________-      ^^^^^^
[INFO] [stderr] 73 | |                         return None;
[INFO] [stderr] 74 | |                     }
[INFO] [stderr]    | |_____________________- help: try this: `if p_val.is_err()`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#redundant_pattern_matching
[INFO] [stderr] 
[INFO] [stderr] warning: redundant pattern matching, consider using `is_none()`
[INFO] [stderr]   --> src/lib.rs:78:28
[INFO] [stderr]    |
[INFO] [stderr] 78 |                       if let None = val {
[INFO] [stderr]    |  _____________________-      ^^^^
[INFO] [stderr] 79 | |                         return None;
[INFO] [stderr] 80 | |                     }
[INFO] [stderr]    | |_____________________- help: try this: `if val.is_none()`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#redundant_pattern_matching
[INFO] [stderr] 
[INFO] [stderr] warning: redundant pattern matching, consider using `is_err()`
[INFO] [stderr]   --> src/lib.rs:83:28
[INFO] [stderr]    |
[INFO] [stderr] 83 |                       if let Err(_) = p_val {
[INFO] [stderr]    |  _____________________-      ^^^^^^
[INFO] [stderr] 84 | |                         return None;
[INFO] [stderr] 85 | |                     }
[INFO] [stderr]    | |_____________________- help: try this: `if p_val.is_err()`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#redundant_pattern_matching
[INFO] [stderr] 
[INFO] [stderr] warning: redundant pattern matching, consider using `is_none()`
[INFO] [stderr]   --> src/lib.rs:89:28
[INFO] [stderr]    |
[INFO] [stderr] 89 |                       if let None = val {
[INFO] [stderr]    |  _____________________-      ^^^^
[INFO] [stderr] 90 | |                         return None;
[INFO] [stderr] 91 | |                     }
[INFO] [stderr]    | |_____________________- help: try this: `if val.is_none()`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#redundant_pattern_matching
[INFO] [stderr] 
[INFO] [stderr] warning: redundant pattern matching, consider using `is_err()`
[INFO] [stderr]   --> src/lib.rs:94:28
[INFO] [stderr]    |
[INFO] [stderr] 94 |                       if let Err(_) = p_val {
[INFO] [stderr]    |  _____________________-      ^^^^^^
[INFO] [stderr] 95 | |                         return None;
[INFO] [stderr] 96 | |                     }
[INFO] [stderr]    | |_____________________- help: try this: `if p_val.is_err()`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#redundant_pattern_matching
[INFO] [stderr] 
[INFO] [stderr] warning: single-character string constant used as pattern
[INFO] [stderr]    --> src/lib.rs:112:51
[INFO] [stderr]     |
[INFO] [stderr] 112 |         let header_value: Vec<&str> = value.split(":").map(|s| s.trim()).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: called `.get().unwrap()` on a Vec. Using `[]` is more clear and more concise
[INFO] [stderr]    --> src/lib.rs:116:19
[INFO] [stderr]     |
[INFO] [stderr] 116 |         let val = header_value.get(1).unwrap();
[INFO] [stderr]     |                   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try this: `&header_value[1]`
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(clippy::get_unwrap)] on by default
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#get_unwrap
[INFO] [stderr] 
[INFO] [stderr] warning: single-character string constant used as pattern
[INFO] [stderr]   --> src/lib.rs:55:45
[INFO] [stderr]    |
[INFO] [stderr] 55 |         let tokens: Vec<&str> = value.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/lib.rs:57:52
[INFO] [stderr]    |
[INFO] [stderr] 57 |             let key_value: Vec<&str> = token.split("=").map(|s| s.trim()).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: redundant pattern matching, consider using `is_none()`
[INFO] [stderr]   --> src/lib.rs:67:28
[INFO] [stderr]    |
[INFO] [stderr] 67 |                       if let None = val {
[INFO] [stderr]    |  _____________________-      ^^^^
[INFO] [stderr] 68 | |                         return None;
[INFO] [stderr] 69 | |                     }
[INFO] [stderr]    | |_____________________- help: try this: `if val.is_none()`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::redundant_pattern_matching)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#redundant_pattern_matching
[INFO] [stderr] 
[INFO] [stderr] warning: redundant pattern matching, consider using `is_err()`
[INFO] [stderr]   --> src/lib.rs:72:28
[INFO] [stderr]    |
[INFO] [stderr] 72 |                       if let Err(_) = p_val {
[INFO] [stderr]    |  _____________________-      ^^^^^^
[INFO] [stderr] 73 | |                         return None;
[INFO] [stderr] 74 | |                     }
[INFO] [stderr]    | |_____________________- help: try this: `if p_val.is_err()`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#redundant_pattern_matching
[INFO] [stderr] 
[INFO] [stderr] warning: redundant pattern matching, consider using `is_none()`
[INFO] [stderr]   --> src/lib.rs:78:28
[INFO] [stderr]    |
[INFO] [stderr] 78 |                       if let None = val {
[INFO] [stderr]    |  _____________________-      ^^^^
[INFO] [stderr] 79 | |                         return None;
[INFO] [stderr] 80 | |                     }
[INFO] [stderr]    | |_____________________- help: try this: `if val.is_none()`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#redundant_pattern_matching
[INFO] [stderr] 
[INFO] [stderr] warning: redundant pattern matching, consider using `is_err()`
[INFO] [stderr]   --> src/lib.rs:83:28
[INFO] [stderr]    |
[INFO] [stderr] 83 |                       if let Err(_) = p_val {
[INFO] [stderr]    |  _____________________-      ^^^^^^
[INFO] [stderr] 84 | |                         return None;
[INFO] [stderr] 85 | |                     }
[INFO] [stderr]    | |_____________________- help: try this: `if p_val.is_err()`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#redundant_pattern_matching
[INFO] [stderr] 
[INFO] [stderr] warning: redundant pattern matching, consider using `is_none()`
[INFO] [stderr]   --> src/lib.rs:89:28
[INFO] [stderr]    |
[INFO] [stderr] 89 |                       if let None = val {
[INFO] [stderr]    |  _____________________-      ^^^^
[INFO] [stderr] 90 | |                         return None;
[INFO] [stderr] 91 | |                     }
[INFO] [stderr]    | |_____________________- help: try this: `if val.is_none()`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#redundant_pattern_matching
[INFO] [stderr] 
[INFO] [stderr] warning: redundant pattern matching, consider using `is_err()`
[INFO] [stderr]   --> src/lib.rs:94:28
[INFO] [stderr]    |
[INFO] [stderr] 94 |                       if let Err(_) = p_val {
[INFO] [stderr]    |  _____________________-      ^^^^^^
[INFO] [stderr] 95 | |                         return None;
[INFO] [stderr] 96 | |                     }
[INFO] [stderr]    | |_____________________- help: try this: `if p_val.is_err()`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#redundant_pattern_matching
[INFO] [stderr] 
[INFO] [stderr] warning: single-character string constant used as pattern
[INFO] [stderr]    --> src/lib.rs:112:51
[INFO] [stderr]     |
[INFO] [stderr] 112 |         let header_value: Vec<&str> = value.split(":").map(|s| s.trim()).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: called `.get().unwrap()` on a Vec. Using `[]` is more clear and more concise
[INFO] [stderr]    --> src/lib.rs:116:19
[INFO] [stderr]     |
[INFO] [stderr] 116 |         let val = header_value.get(1).unwrap();
[INFO] [stderr]     |                   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try this: `&header_value[1]`
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(clippy::get_unwrap)] on by default
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#get_unwrap
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.83s
[INFO] running `"docker" "inspect" "bb973dcf27384a727918c89a5a9057342fba5b5dc0a9c48f638fe04b6a85ecf3"`
[INFO] running `"docker" "rm" "-f" "bb973dcf27384a727918c89a5a9057342fba5b5dc0a9c48f638fe04b6a85ecf3"`
[INFO] [stdout] bb973dcf27384a727918c89a5a9057342fba5b5dc0a9c48f638fe04b6a85ecf3