[INFO] crate roller 0.1.0 is already in cache
[INFO] extracting crate roller 0.1.0 into work/ex/clippy-test-run/sources/stable/reg/roller/0.1.0
[INFO] extracting crate roller 0.1.0 into work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/reg/roller/0.1.0
[INFO] validating manifest of roller-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 roller-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 roller-0.1.0
[INFO] finished frobbing roller-0.1.0
[INFO] frobbed toml for roller-0.1.0 written to work/ex/clippy-test-run/sources/stable/reg/roller/0.1.0/Cargo.toml
[INFO] started frobbing roller-0.1.0
[INFO] finished frobbing roller-0.1.0
[INFO] frobbed toml for roller-0.1.0 written to work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/reg/roller/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 roller-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-7/stable:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/clippy-test-run/sources/stable/reg/roller/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] 49efe0b09d884e1882a4c527f160048a843e0da7fa18e4002b2e3ecacb0da808
[INFO] running `"docker" "start" "-a" "49efe0b09d884e1882a4c527f160048a843e0da7fa18e4002b2e3ecacb0da808"`
[INFO] [stderr]     Checking roller v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: Constants have by default a `'static` lifetime
[INFO] [stderr]   --> src/main.rs:33:20
[INFO] [stderr]    |
[INFO] [stderr] 33 | const INDEX_PATH: &'static str = ".roller_index.json";
[INFO] [stderr]    |                   -^^^^^^^---- help: consider removing `'static`: `&str`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::const_static_lifetime)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#const_static_lifetime
[INFO] [stderr] 
[INFO] [stderr] warning: Constants have by default a `'static` lifetime
[INFO] [stderr]   --> src/main.rs:34:21
[INFO] [stderr]    |
[INFO] [stderr] 34 | const CONFIG_PATH: &'static str = ".roller_config.json";
[INFO] [stderr]    |                    -^^^^^^^---- help: consider removing `'static`: `&str`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#const_static_lifetime
[INFO] [stderr] 
[INFO] [stderr] warning: needlessly taken reference of left operand
[INFO] [stderr]    --> src/main.rs:150:16
[INFO] [stderr]     |
[INFO] [stderr] 150 |             if &file_extension != extension {
[INFO] [stderr]     |                ---------------^^^^^^^^^^^^^
[INFO] [stderr]     |                |
[INFO] [stderr]     |                help: use the left value directly: `file_extension`
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(clippy::op_ref)] on by default
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#op_ref
[INFO] [stderr] 
[INFO] [stderr] warning: Err(_) will match all errors, maybe not a good idea
[INFO] [stderr]    --> src/main.rs:168:9
[INFO] [stderr]     |
[INFO] [stderr] 168 |         Err(_) => panic!("couldn't open file to get hash: {}", path),
[INFO] [stderr]     |         ^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(clippy::match_wild_err_arm)] on by default
[INFO] [stderr]     = note: to remove this warning, match each error separately or use unreachable macro
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#match_wild_err_arm
[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/main.rs:172:5
[INFO] [stderr]     |
[INFO] [stderr] 172 | /     match file.read_to_string(&mut s) {
[INFO] [stderr] 173 | |         Err(_) => panic!("couldn't read file to string: {}", path),
[INFO] [stderr] 174 | |         Ok(_) => (),
[INFO] [stderr] 175 | |     };
[INFO] [stderr]     | |_____^ help: try this: `if let Err(_) = file.read_to_string(&mut s) { panic!("couldn't read file to string: {}", path) }`
[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: Err(_) will match all errors, maybe not a good idea
[INFO] [stderr]    --> src/main.rs:173:9
[INFO] [stderr]     |
[INFO] [stderr] 173 |         Err(_) => panic!("couldn't read file to string: {}", path),
[INFO] [stderr]     |         ^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: to remove this warning, match each error separately or use unreachable macro
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#match_wild_err_arm
[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/main.rs:188:5
[INFO] [stderr]     |
[INFO] [stderr] 188 | /     match write!(file, "{}", encoded) {
[INFO] [stderr] 189 | |         Err(_) => panic!(),
[INFO] [stderr] 190 | |         Ok(_) => (),
[INFO] [stderr] 191 | |     };
[INFO] [stderr]     | |_____^ help: try this: `if let Err(_) = $ dst . write_fmt ( format_args ! ( $ ( $ arg ) * ) ) { panic!() }`
[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: Err(_) will match all errors, maybe not a good idea
[INFO] [stderr]    --> src/main.rs:189:9
[INFO] [stderr]     |
[INFO] [stderr] 189 |         Err(_) => panic!(),
[INFO] [stderr]     |         ^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: to remove this warning, match each error separately or use unreachable macro
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#match_wild_err_arm
[INFO] [stderr] 
[INFO] [stderr] warning: Constants have by default a `'static` lifetime
[INFO] [stderr]   --> src/main.rs:33:20
[INFO] [stderr]    |
[INFO] [stderr] 33 | const INDEX_PATH: &'static str = ".roller_index.json";
[INFO] [stderr]    |                   -^^^^^^^---- help: consider removing `'static`: `&str`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::const_static_lifetime)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#const_static_lifetime
[INFO] [stderr] 
[INFO] [stderr] warning: Constants have by default a `'static` lifetime
[INFO] [stderr]   --> src/main.rs:34:21
[INFO] [stderr]    |
[INFO] [stderr] 34 | const CONFIG_PATH: &'static str = ".roller_config.json";
[INFO] [stderr]    |                    -^^^^^^^---- help: consider removing `'static`: `&str`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#const_static_lifetime
[INFO] [stderr] 
[INFO] [stderr] warning: needlessly taken reference of left operand
[INFO] [stderr]    --> src/main.rs:150:16
[INFO] [stderr]     |
[INFO] [stderr] 150 |             if &file_extension != extension {
[INFO] [stderr]     |                ---------------^^^^^^^^^^^^^
[INFO] [stderr]     |                |
[INFO] [stderr]     |                help: use the left value directly: `file_extension`
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(clippy::op_ref)] on by default
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#op_ref
[INFO] [stderr] 
[INFO] [stderr] warning: Err(_) will match all errors, maybe not a good idea
[INFO] [stderr]    --> src/main.rs:168:9
[INFO] [stderr]     |
[INFO] [stderr] 168 |         Err(_) => panic!("couldn't open file to get hash: {}", path),
[INFO] [stderr]     |         ^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(clippy::match_wild_err_arm)] on by default
[INFO] [stderr]     = note: to remove this warning, match each error separately or use unreachable macro
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#match_wild_err_arm
[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/main.rs:172:5
[INFO] [stderr]     |
[INFO] [stderr] 172 | /     match file.read_to_string(&mut s) {
[INFO] [stderr] 173 | |         Err(_) => panic!("couldn't read file to string: {}", path),
[INFO] [stderr] 174 | |         Ok(_) => (),
[INFO] [stderr] 175 | |     };
[INFO] [stderr]     | |_____^ help: try this: `if let Err(_) = file.read_to_string(&mut s) { panic!("couldn't read file to string: {}", path) }`
[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: Err(_) will match all errors, maybe not a good idea
[INFO] [stderr]    --> src/main.rs:173:9
[INFO] [stderr]     |
[INFO] [stderr] 173 |         Err(_) => panic!("couldn't read file to string: {}", path),
[INFO] [stderr]     |         ^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: to remove this warning, match each error separately or use unreachable macro
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#match_wild_err_arm
[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/main.rs:188:5
[INFO] [stderr]     |
[INFO] [stderr] 188 | /     match write!(file, "{}", encoded) {
[INFO] [stderr] 189 | |         Err(_) => panic!(),
[INFO] [stderr] 190 | |         Ok(_) => (),
[INFO] [stderr] 191 | |     };
[INFO] [stderr]     | |_____^ help: try this: `if let Err(_) = $ dst . write_fmt ( format_args ! ( $ ( $ arg ) * ) ) { panic!() }`
[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: Err(_) will match all errors, maybe not a good idea
[INFO] [stderr]    --> src/main.rs:189:9
[INFO] [stderr]     |
[INFO] [stderr] 189 |         Err(_) => panic!(),
[INFO] [stderr]     |         ^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: to remove this warning, match each error separately or use unreachable macro
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#match_wild_err_arm
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2.23s
[INFO] running `"docker" "inspect" "49efe0b09d884e1882a4c527f160048a843e0da7fa18e4002b2e3ecacb0da808"`
[INFO] running `"docker" "rm" "-f" "49efe0b09d884e1882a4c527f160048a843e0da7fa18e4002b2e3ecacb0da808"`
[INFO] [stdout] 49efe0b09d884e1882a4c527f160048a843e0da7fa18e4002b2e3ecacb0da808