[INFO] updating cached repository Goirad/Quadtree
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/Goirad/Quadtree
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/Goirad/Quadtree" "work/ex/clippy-test-run/sources/stable/gh/Goirad/Quadtree"`
[INFO] [stderr] Cloning into 'work/ex/clippy-test-run/sources/stable/gh/Goirad/Quadtree'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/Goirad/Quadtree" "work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/gh/Goirad/Quadtree"`
[INFO] [stderr] Cloning into 'work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/gh/Goirad/Quadtree'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 96251f5ffecc5f243102d3275de3161e87cb1d06
[INFO] sha for GitHub repo Goirad/Quadtree: 96251f5ffecc5f243102d3275de3161e87cb1d06
[INFO] validating manifest of Goirad/Quadtree 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 Goirad/Quadtree 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 Goirad/Quadtree
[INFO] finished frobbing Goirad/Quadtree
[INFO] frobbed toml for Goirad/Quadtree written to work/ex/clippy-test-run/sources/stable/gh/Goirad/Quadtree/Cargo.toml
[INFO] started frobbing Goirad/Quadtree
[INFO] finished frobbing Goirad/Quadtree
[INFO] frobbed toml for Goirad/Quadtree written to work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/gh/Goirad/Quadtree/Cargo.toml
[INFO] crate Goirad/Quadtree 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 Goirad/Quadtree against stable for clippy-test-run
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/clippy-test-run/worker-2/stable:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/clippy-test-run/sources/stable/gh/Goirad/Quadtree:/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] 5b3fdf034a01b09a688ad2fb8869f5b499e20d004d1c8bc94623526f8a7e8248
[INFO] running `"docker" "start" "-a" "5b3fdf034a01b09a688ad2fb8869f5b499e20d004d1c8bc94623526f8a7e8248"`
[INFO] [stderr]     Checking quadtree v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: unneeded return statement
[INFO] [stderr]    --> src/lib.rs:118:13
[INFO] [stderr]     |
[INFO] [stderr] 118 |             return true;
[INFO] [stderr]     |             ^^^^^^^^^^^^ help: remove `return` as shown: `true`
[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 return statement
[INFO] [stderr]    --> src/lib.rs:118:13
[INFO] [stderr]     |
[INFO] [stderr] 118 |             return true;
[INFO] [stderr]     |             ^^^^^^^^^^^^ help: remove `return` as shown: `true`
[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: length comparison to zero
[INFO] [stderr]   --> src/lib.rs:99:12
[INFO] [stderr]    |
[INFO] [stderr] 99 |         if self.st.len() == 0 {
[INFO] [stderr]    |            ^^^^^^^^^^^^^^^^^^ help: using `is_empty` is clearer and more explicit: `self.st.is_empty()`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::len_zero)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#len_zero
[INFO] [stderr] 
[INFO] [stderr] warning: length comparison to zero
[INFO] [stderr]    --> src/lib.rs:150:20
[INFO] [stderr]     |
[INFO] [stderr] 150 |                 if st.data.len() > 0 {
[INFO] [stderr]     |                    ^^^^^^^^^^^^^^^^^ help: using `is_empty` is clearer and more explicit: `!st.data.is_empty()`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#len_zero
[INFO] [stderr] 
[INFO] [stderr] warning: length comparison to zero
[INFO] [stderr]   --> src/lib.rs:99:12
[INFO] [stderr]    |
[INFO] [stderr] 99 |         if self.st.len() == 0 {
[INFO] [stderr]    |            ^^^^^^^^^^^^^^^^^^ help: using `is_empty` is clearer and more explicit: `self.st.is_empty()`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::len_zero)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#len_zero
[INFO] [stderr] 
[INFO] [stderr] warning: length comparison to zero
[INFO] [stderr]    --> src/lib.rs:150:20
[INFO] [stderr]     |
[INFO] [stderr] 150 |                 if st.data.len() > 0 {
[INFO] [stderr]     |                    ^^^^^^^^^^^^^^^^^ help: using `is_empty` is clearer and more explicit: `!st.data.is_empty()`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#len_zero
[INFO] [stderr] 
[INFO] [stderr] error[E0554]: #![feature] may not be used on the stable release channel
[INFO] [stderr]  --> benches/benches.rs:1:1
[INFO] [stderr]   |
[INFO] [stderr] 1 | #![feature(test)]
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to previous error
[INFO] [stderr] 
[INFO] [stderr] For more information about this error, try `rustc --explain E0554`.
[INFO] [stderr] error: Could not compile `quadtree`.
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: build failed
[INFO] running `"docker" "inspect" "5b3fdf034a01b09a688ad2fb8869f5b499e20d004d1c8bc94623526f8a7e8248"`
[INFO] running `"docker" "rm" "-f" "5b3fdf034a01b09a688ad2fb8869f5b499e20d004d1c8bc94623526f8a7e8248"`
[INFO] [stdout] 5b3fdf034a01b09a688ad2fb8869f5b499e20d004d1c8bc94623526f8a7e8248