[INFO] updating cached repository rustybox/devops-build-counter
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/rustybox/devops-build-counter
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/rustybox/devops-build-counter" "work/ex/clippy-test-run/sources/stable/gh/rustybox/devops-build-counter"`
[INFO] [stderr] Cloning into 'work/ex/clippy-test-run/sources/stable/gh/rustybox/devops-build-counter'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/rustybox/devops-build-counter" "work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/gh/rustybox/devops-build-counter"`
[INFO] [stderr] Cloning into 'work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/gh/rustybox/devops-build-counter'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 9757e2dfc6e149d202e9f4cecccc0cc569ea4e14
[INFO] sha for GitHub repo rustybox/devops-build-counter: 9757e2dfc6e149d202e9f4cecccc0cc569ea4e14
[INFO] validating manifest of rustybox/devops-build-counter 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 rustybox/devops-build-counter 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 rustybox/devops-build-counter
[INFO] finished frobbing rustybox/devops-build-counter
[INFO] frobbed toml for rustybox/devops-build-counter written to work/ex/clippy-test-run/sources/stable/gh/rustybox/devops-build-counter/Cargo.toml
[INFO] started frobbing rustybox/devops-build-counter
[INFO] finished frobbing rustybox/devops-build-counter
[INFO] frobbed toml for rustybox/devops-build-counter written to work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/gh/rustybox/devops-build-counter/Cargo.toml
[INFO] crate rustybox/devops-build-counter 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 rustybox/devops-build-counter 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/gh/rustybox/devops-build-counter:/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] c477df149a1cb1f680159e863dfaa47dfb6c69efd58e89b7e27a48bfd217823b
[INFO] running `"docker" "start" "-a" "c477df149a1cb1f680159e863dfaa47dfb6c69efd58e89b7e27a48bfd217823b"`
[INFO] [stderr]     Checking rust-crypto v0.2.36
[INFO] [stderr]     Checking dobc v0.1.1 (/opt/crater/workdir)
[INFO] [stderr] warning: unneeded return statement
[INFO] [stderr]   --> src/main.rs:50:5
[INFO] [stderr]    |
[INFO] [stderr] 50 |     return path.to_str().expect("").to_string();
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove `return` as shown: `path.to_str().expect("").to_string()`
[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: unneeded unit return type
[INFO] [stderr]   --> src/main.rs:53:36
[INFO] [stderr]    |
[INFO] [stderr] 53 | fn init_project_dir(project: &str) -> () {
[INFO] [stderr]    |                                    ^^^^^ help: remove the `-> ()`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::unused_unit)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#unused_unit
[INFO] [stderr] 
[INFO] [stderr] warning: unneeded return statement
[INFO] [stderr]   --> src/main.rs:67:5
[INFO] [stderr]    |
[INFO] [stderr] 67 |     return hasher.result_str();
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove `return` as shown: `hasher.result_str()`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_return
[INFO] [stderr] 
[INFO] [stderr] warning: unneeded return statement
[INFO] [stderr]   --> src/main.rs:80:5
[INFO] [stderr]    |
[INFO] [stderr] 80 |     return next.to_string();
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^ help: remove `return` as shown: `next.to_string()`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_return
[INFO] [stderr] 
[INFO] [stderr] warning: unneeded return statement
[INFO] [stderr]   --> src/main.rs:93:5
[INFO] [stderr]    |
[INFO] [stderr] 93 |     return text.parse().unwrap();
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove `return` as shown: `text.parse().unwrap()`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_return
[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:106:5
[INFO] [stderr]     |
[INFO] [stderr] 106 | /     match file.write_all(count.to_string().as_bytes()) {
[INFO] [stderr] 107 | |         Err(why) => panic!("couldn't write to {}: {}", display, why.description()),
[INFO] [stderr] 108 | |         Ok(_) => {}
[INFO] [stderr] 109 | |     }
[INFO] [stderr]     | |_____^ help: try this: `if let Err(why) = file.write_all(count.to_string().as_bytes()) { panic!("couldn't write to {}: {}", display, why.description()) }`
[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: unneeded return statement
[INFO] [stderr]   --> src/main.rs:50:5
[INFO] [stderr]    |
[INFO] [stderr] 50 |     return path.to_str().expect("").to_string();
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove `return` as shown: `path.to_str().expect("").to_string()`
[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: unneeded unit return type
[INFO] [stderr]   --> src/main.rs:53:36
[INFO] [stderr]    |
[INFO] [stderr] 53 | fn init_project_dir(project: &str) -> () {
[INFO] [stderr]    |                                    ^^^^^ help: remove the `-> ()`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::unused_unit)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#unused_unit
[INFO] [stderr] 
[INFO] [stderr] warning: unneeded return statement
[INFO] [stderr]   --> src/main.rs:67:5
[INFO] [stderr]    |
[INFO] [stderr] 67 |     return hasher.result_str();
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove `return` as shown: `hasher.result_str()`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_return
[INFO] [stderr] 
[INFO] [stderr] warning: unneeded return statement
[INFO] [stderr]   --> src/main.rs:80:5
[INFO] [stderr]    |
[INFO] [stderr] 80 |     return next.to_string();
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^ help: remove `return` as shown: `next.to_string()`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_return
[INFO] [stderr] 
[INFO] [stderr] warning: unneeded return statement
[INFO] [stderr]   --> src/main.rs:93:5
[INFO] [stderr]    |
[INFO] [stderr] 93 |     return text.parse().unwrap();
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove `return` as shown: `text.parse().unwrap()`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_return
[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:106:5
[INFO] [stderr]     |
[INFO] [stderr] 106 | /     match file.write_all(count.to_string().as_bytes()) {
[INFO] [stderr] 107 | |         Err(why) => panic!("couldn't write to {}: {}", display, why.description()),
[INFO] [stderr] 108 | |         Ok(_) => {}
[INFO] [stderr] 109 | |     }
[INFO] [stderr]     | |_____^ help: try this: `if let Err(why) = file.write_all(count.to_string().as_bytes()) { panic!("couldn't write to {}: {}", display, why.description()) }`
[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]     Finished dev [unoptimized + debuginfo] target(s) in 7.57s
[INFO] running `"docker" "inspect" "c477df149a1cb1f680159e863dfaa47dfb6c69efd58e89b7e27a48bfd217823b"`
[INFO] running `"docker" "rm" "-f" "c477df149a1cb1f680159e863dfaa47dfb6c69efd58e89b7e27a48bfd217823b"`
[INFO] [stdout] c477df149a1cb1f680159e863dfaa47dfb6c69efd58e89b7e27a48bfd217823b