[INFO] crate image-base64 0.1.0 is already in cache
[INFO] extracting crate image-base64 0.1.0 into work/ex/clippy-test-run/sources/stable/reg/image-base64/0.1.0
[INFO] extracting crate image-base64 0.1.0 into work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/reg/image-base64/0.1.0
[INFO] validating manifest of image-base64-0.1.0 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 image-base64-0.1.0 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 image-base64-0.1.0
[INFO] finished frobbing image-base64-0.1.0
[INFO] frobbed toml for image-base64-0.1.0 written to work/ex/clippy-test-run/sources/stable/reg/image-base64/0.1.0/Cargo.toml
[INFO] started frobbing image-base64-0.1.0
[INFO] finished frobbing image-base64-0.1.0
[INFO] frobbed toml for image-base64-0.1.0 written to work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/reg/image-base64/0.1.0/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 image-base64-0.1.0 against stable for clippy-test-run
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/clippy-test-run/worker-6/stable:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/clippy-test-run/sources/stable/reg/image-base64/0.1.0:/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] 197e35813daefc6b427264000df9ff295e970129e3f4addd688e250d1fe16130
[INFO] running `"docker" "start" "-a" "197e35813daefc6b427264000df9ff295e970129e3f4addd688e250d1fe16130"`
[INFO] [stderr]     Checking base64 v0.4.2
[INFO] [stderr]     Checking png v0.6.2
[INFO] [stderr]     Checking image v0.12.4
[INFO] [stderr]     Checking image-base64 v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: unneeded return statement
[INFO] [stderr]   --> src/lib.rs:35:5
[INFO] [stderr]    |
[INFO] [stderr] 35 |     return value.from_base64().unwrap();
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove `return` as shown: `value.from_base64().unwrap()`
[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: trivial regex
[INFO] [stderr]   --> src/lib.rs:12:19
[INFO] [stderr]    |
[INFO] [stderr] 12 |     if Regex::new(r"^ffd8ffe0").unwrap().is_match(hex) { 
[INFO] [stderr]    |                   ^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::trivial_regex)] on by default
[INFO] [stderr]    = help: consider using `str::starts_with`
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#trivial_regex
[INFO] [stderr] 
[INFO] [stderr] warning: trivial regex
[INFO] [stderr]   --> src/lib.rs:14:26
[INFO] [stderr]    |
[INFO] [stderr] 14 |     } else if Regex::new(r"^89504e47").unwrap().is_match(hex) {  
[INFO] [stderr]    |                          ^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = help: consider using `str::starts_with`
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#trivial_regex
[INFO] [stderr] 
[INFO] [stderr] warning: trivial regex
[INFO] [stderr]   --> src/lib.rs:16:26
[INFO] [stderr]    |
[INFO] [stderr] 16 |     } else if Regex::new(r"^47494638").unwrap().is_match(hex) { 
[INFO] [stderr]    |                          ^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = help: consider using `str::starts_with`
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#trivial_regex
[INFO] [stderr] 
[INFO] [stderr] warning: use of `unwrap_or` followed by a function call
[INFO] [stderr]   --> src/lib.rs:32:35
[INFO] [stderr]    |
[INFO] [stderr] 32 |     let offset = base64.find(',').unwrap_or(base64.len())+1;
[INFO] [stderr]    |                                   ^^^^^^^^^^^^^^^^^^^^^^^ help: try this: `unwrap_or_else(|| base64.len())`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::or_fun_call)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#or_fun_call
[INFO] [stderr] 
[INFO] [stderr] warning: unneeded return statement
[INFO] [stderr]   --> src/lib.rs:35:5
[INFO] [stderr]    |
[INFO] [stderr] 35 |     return value.from_base64().unwrap();
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove `return` as shown: `value.from_base64().unwrap()`
[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: trivial regex
[INFO] [stderr]   --> src/lib.rs:12:19
[INFO] [stderr]    |
[INFO] [stderr] 12 |     if Regex::new(r"^ffd8ffe0").unwrap().is_match(hex) { 
[INFO] [stderr]    |                   ^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::trivial_regex)] on by default
[INFO] [stderr]    = help: consider using `str::starts_with`
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#trivial_regex
[INFO] [stderr] 
[INFO] [stderr] warning: trivial regex
[INFO] [stderr]   --> src/lib.rs:14:26
[INFO] [stderr]    |
[INFO] [stderr] 14 |     } else if Regex::new(r"^89504e47").unwrap().is_match(hex) {  
[INFO] [stderr]    |                          ^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = help: consider using `str::starts_with`
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#trivial_regex
[INFO] [stderr] 
[INFO] [stderr] warning: trivial regex
[INFO] [stderr]   --> src/lib.rs:16:26
[INFO] [stderr]    |
[INFO] [stderr] 16 |     } else if Regex::new(r"^47494638").unwrap().is_match(hex) { 
[INFO] [stderr]    |                          ^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = help: consider using `str::starts_with`
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#trivial_regex
[INFO] [stderr] 
[INFO] [stderr] warning: use of `unwrap_or` followed by a function call
[INFO] [stderr]   --> src/lib.rs:32:35
[INFO] [stderr]    |
[INFO] [stderr] 32 |     let offset = base64.find(',').unwrap_or(base64.len())+1;
[INFO] [stderr]    |                                   ^^^^^^^^^^^^^^^^^^^^^^^ help: try this: `unwrap_or_else(|| base64.len())`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::or_fun_call)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#or_fun_call
[INFO] [stderr] 
[INFO] [stderr] warning: you seem to be trying to use match for destructuring a single pattern. Consider using `if let`
[INFO] [stderr]   --> tests/test.rs:39:5
[INFO] [stderr]    |
[INFO] [stderr] 39 | /     match file.read_to_string(&mut buffer) {
[INFO] [stderr] 40 | |         Err(why) => panic!("couldn't read {}", why),
[INFO] [stderr] 41 | |         Ok(_) => {},
[INFO] [stderr] 42 | |     }
[INFO] [stderr]    | |_____^ help: try this: `if let Err(why) = file.read_to_string(&mut buffer) { panic!("couldn't read {}", why) }`
[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] 
[INFO] [stderr] warning: you seem to be trying to use match for destructuring a single pattern. Consider using `if let`
[INFO] [stderr]   --> tests/test.rs:71:5
[INFO] [stderr]    |
[INFO] [stderr] 71 | /     match original.read_to_string(&mut base64) {
[INFO] [stderr] 72 | |         Err(why) => panic!("couldn't read {}", why),
[INFO] [stderr] 73 | |         Ok(_) => {},
[INFO] [stderr] 74 | |     }
[INFO] [stderr]    | |_____^ help: try this: `if let Err(why) = original.read_to_string(&mut base64) { panic!("couldn't read {}", why) }`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#single_match
[INFO] [stderr] 
[INFO] [stderr] warning: you seem to be trying to use match for destructuring a single pattern. Consider using `if let`
[INFO] [stderr]   --> tests/test.rs:92:5
[INFO] [stderr]    |
[INFO] [stderr] 92 | /     match file.read_to_end(&mut file_vec) {
[INFO] [stderr] 93 | |         Err(why) => panic!("couldn't read {}", why),
[INFO] [stderr] 94 | |         Ok(_) => {},
[INFO] [stderr] 95 | |     }
[INFO] [stderr]    | |_____^ help: try this: `if let Err(why) = file.read_to_end(&mut file_vec) { panic!("couldn't read {}", why) }`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#single_match
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 13.33s
[INFO] running `"docker" "inspect" "197e35813daefc6b427264000df9ff295e970129e3f4addd688e250d1fe16130"`
[INFO] running `"docker" "rm" "-f" "197e35813daefc6b427264000df9ff295e970129e3f4addd688e250d1fe16130"`
[INFO] [stdout] 197e35813daefc6b427264000df9ff295e970129e3f4addd688e250d1fe16130