[INFO] updating cached repository technosophos/rust_k8s_experiment
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/technosophos/rust_k8s_experiment
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/technosophos/rust_k8s_experiment" "work/ex/clippy-test-run/sources/stable/gh/technosophos/rust_k8s_experiment"`
[INFO] [stderr] Cloning into 'work/ex/clippy-test-run/sources/stable/gh/technosophos/rust_k8s_experiment'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/technosophos/rust_k8s_experiment" "work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/gh/technosophos/rust_k8s_experiment"`
[INFO] [stderr] Cloning into 'work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/gh/technosophos/rust_k8s_experiment'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 49972ba7ba4d6a063a764f04bf5ad09dadf7633f
[INFO] sha for GitHub repo technosophos/rust_k8s_experiment: 49972ba7ba4d6a063a764f04bf5ad09dadf7633f
[INFO] validating manifest of technosophos/rust_k8s_experiment 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 technosophos/rust_k8s_experiment 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 technosophos/rust_k8s_experiment
[INFO] finished frobbing technosophos/rust_k8s_experiment
[INFO] frobbed toml for technosophos/rust_k8s_experiment written to work/ex/clippy-test-run/sources/stable/gh/technosophos/rust_k8s_experiment/Cargo.toml
[INFO] started frobbing technosophos/rust_k8s_experiment
[INFO] finished frobbing technosophos/rust_k8s_experiment
[INFO] frobbed toml for technosophos/rust_k8s_experiment written to work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/gh/technosophos/rust_k8s_experiment/Cargo.toml
[INFO] crate technosophos/rust_k8s_experiment 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 technosophos/rust_k8s_experiment against stable for clippy-test-run
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/clippy-test-run/worker-3/stable:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/clippy-test-run/sources/stable/gh/technosophos/rust_k8s_experiment:/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] 18934e3fdcd8c016c14b5b2ad54d486ba79d82b54965f490e9f489428e5b3a33
[INFO] running `"docker" "start" "-a" "18934e3fdcd8c016c14b5b2ad54d486ba79d82b54965f490e9f489428e5b3a33"`
[INFO] [stderr]     Checking serde_yaml v0.7.5
[INFO] [stderr]     Checking k8s_example v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: unneeded unit return type
[INFO] [stderr]   --> src/main.rs:49:33
[INFO] [stderr]    |
[INFO] [stderr] 49 | fn inspect_object(obj: &Object) -> () {
[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 unit return type
[INFO] [stderr]   --> src/main.rs:49:33
[INFO] [stderr]    |
[INFO] [stderr] 49 | fn inspect_object(obj: &Object) -> () {
[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: this let-binding has unit value. Consider omitting `let _ =`
[INFO] [stderr]   --> src/main.rs:50:5
[INFO] [stderr]    |
[INFO] [stderr] 50 | /     let _ = match obj {
[INFO] [stderr] 51 | |         Object::Pod{ metadata, .. } => {
[INFO] [stderr] 52 | |             println!("I am a pod named {}!", metadata.name);
[INFO] [stderr] 53 | |         }
[INFO] [stderr] ...  |
[INFO] [stderr] 56 | |         }
[INFO] [stderr] 57 | |     };
[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: this let-binding has unit value. Consider omitting `let _ =`
[INFO] [stderr]   --> src/main.rs:50:5
[INFO] [stderr]    |
[INFO] [stderr] 50 | /     let _ = match obj {
[INFO] [stderr] 51 | |         Object::Pod{ metadata, .. } => {
[INFO] [stderr] 52 | |             println!("I am a pod named {}!", metadata.name);
[INFO] [stderr] 53 | |         }
[INFO] [stderr] ...  |
[INFO] [stderr] 56 | |         }
[INFO] [stderr] 57 | |     };
[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 2.71s
[INFO] running `"docker" "inspect" "18934e3fdcd8c016c14b5b2ad54d486ba79d82b54965f490e9f489428e5b3a33"`
[INFO] running `"docker" "rm" "-f" "18934e3fdcd8c016c14b5b2ad54d486ba79d82b54965f490e9f489428e5b3a33"`
[INFO] [stdout] 18934e3fdcd8c016c14b5b2ad54d486ba79d82b54965f490e9f489428e5b3a33