[INFO] updating cached repository idursun/valuestream
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/idursun/valuestream
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/idursun/valuestream" "work/ex/clippy-test-run/sources/stable/gh/idursun/valuestream"`
[INFO] [stderr] Cloning into 'work/ex/clippy-test-run/sources/stable/gh/idursun/valuestream'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/idursun/valuestream" "work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/gh/idursun/valuestream"`
[INFO] [stderr] Cloning into 'work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/gh/idursun/valuestream'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] ceea4a8957430032ac556eabd20b5e14656d7ecd
[INFO] sha for GitHub repo idursun/valuestream: ceea4a8957430032ac556eabd20b5e14656d7ecd
[INFO] validating manifest of idursun/valuestream 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 idursun/valuestream 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 idursun/valuestream
[INFO] finished frobbing idursun/valuestream
[INFO] frobbed toml for idursun/valuestream written to work/ex/clippy-test-run/sources/stable/gh/idursun/valuestream/Cargo.toml
[INFO] started frobbing idursun/valuestream
[INFO] finished frobbing idursun/valuestream
[INFO] frobbed toml for idursun/valuestream written to work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/gh/idursun/valuestream/Cargo.toml
[INFO] crate idursun/valuestream 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 idursun/valuestream against stable+rustflags=-Dclippy::into_iter_on_array for clippy-test-run
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/clippy-test-run/worker-6/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/gh/idursun/valuestream:/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 -Dclippy::into_iter_on_array" "-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] b7cc93d07efaa41a704061c1841d331fde4d43b9fdcc3fffbbd5a2ff4f4398de
[INFO] running `"docker" "start" "-a" "b7cc93d07efaa41a704061c1841d331fde4d43b9fdcc3fffbbd5a2ff4f4398de"`
[INFO] [stderr]     Checking valuestreams v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: item `valuestream::ValueStream<T>` has a public `len` method but no corresponding `is_empty` method
[INFO] [stderr]   --> src/valuestream.rs:9:1
[INFO] [stderr]    |
[INFO] [stderr] 9  | / impl<T: Clone> ValueStream<T> {
[INFO] [stderr] 10 | |     pub fn new() -> ValueStream<T> {
[INFO] [stderr] 11 | |         ValueStream(Vec::new())
[INFO] [stderr] 12 | |     }
[INFO] [stderr] ...  |
[INFO] [stderr] 41 | |     }
[INFO] [stderr] 42 | | }
[INFO] [stderr]    | |_^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::len_without_is_empty)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#len_without_is_empty
[INFO] [stderr] 
[INFO] [stderr] warning: you should consider deriving a `Default` implementation for `valuestream::ValueStream<T>`
[INFO] [stderr]   --> src/valuestream.rs:10:5
[INFO] [stderr]    |
[INFO] [stderr] 10 | /     pub fn new() -> ValueStream<T> {
[INFO] [stderr] 11 | |         ValueStream(Vec::new())
[INFO] [stderr] 12 | |     }
[INFO] [stderr]    | |_____^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::new_without_default_derive)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#new_without_default_derive
[INFO] [stderr] help: try this
[INFO] [stderr]    |
[INFO] [stderr] 5  | #[derive(Default)]
[INFO] [stderr]    |
[INFO] [stderr] 
[INFO] [stderr] warning: item `valuestream::ValueStream<T>` has a public `len` method but no corresponding `is_empty` method
[INFO] [stderr]   --> src/valuestream.rs:9:1
[INFO] [stderr]    |
[INFO] [stderr] 9  | / impl<T: Clone> ValueStream<T> {
[INFO] [stderr] 10 | |     pub fn new() -> ValueStream<T> {
[INFO] [stderr] 11 | |         ValueStream(Vec::new())
[INFO] [stderr] 12 | |     }
[INFO] [stderr] ...  |
[INFO] [stderr] 41 | |     }
[INFO] [stderr] 42 | | }
[INFO] [stderr]    | |_^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::len_without_is_empty)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#len_without_is_empty
[INFO] [stderr] 
[INFO] [stderr] warning: you should consider deriving a `Default` implementation for `valuestream::ValueStream<T>`
[INFO] [stderr]   --> src/valuestream.rs:10:5
[INFO] [stderr]    |
[INFO] [stderr] 10 | /     pub fn new() -> ValueStream<T> {
[INFO] [stderr] 11 | |         ValueStream(Vec::new())
[INFO] [stderr] 12 | |     }
[INFO] [stderr]    | |_____^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::new_without_default_derive)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#new_without_default_derive
[INFO] [stderr] help: try this
[INFO] [stderr]    |
[INFO] [stderr] 5  | #[derive(Default)]
[INFO] [stderr]    |
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.08s
[INFO] running `"docker" "inspect" "b7cc93d07efaa41a704061c1841d331fde4d43b9fdcc3fffbbd5a2ff4f4398de"`
[INFO] running `"docker" "rm" "-f" "b7cc93d07efaa41a704061c1841d331fde4d43b9fdcc3fffbbd5a2ff4f4398de"`
[INFO] [stdout] b7cc93d07efaa41a704061c1841d331fde4d43b9fdcc3fffbbd5a2ff4f4398de