[INFO] updating cached repository CjS77/actix-demo
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/CjS77/actix-demo
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/CjS77/actix-demo" "work/ex/clippy-test-run/sources/stable/gh/CjS77/actix-demo"`
[INFO] [stderr] Cloning into 'work/ex/clippy-test-run/sources/stable/gh/CjS77/actix-demo'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/CjS77/actix-demo" "work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/gh/CjS77/actix-demo"`
[INFO] [stderr] Cloning into 'work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/gh/CjS77/actix-demo'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] f9c1cbdf83ea1ebdbacc6cf74ec3278d5771b4b3
[INFO] sha for GitHub repo CjS77/actix-demo: f9c1cbdf83ea1ebdbacc6cf74ec3278d5771b4b3
[INFO] validating manifest of CjS77/actix-demo 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 CjS77/actix-demo 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 CjS77/actix-demo
[INFO] finished frobbing CjS77/actix-demo
[INFO] frobbed toml for CjS77/actix-demo written to work/ex/clippy-test-run/sources/stable/gh/CjS77/actix-demo/Cargo.toml
[INFO] started frobbing CjS77/actix-demo
[INFO] finished frobbing CjS77/actix-demo
[INFO] frobbed toml for CjS77/actix-demo written to work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/gh/CjS77/actix-demo/Cargo.toml
[INFO] crate CjS77/actix-demo 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 CjS77/actix-demo against stable for clippy-test-run
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/clippy-test-run/worker-5/stable:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/clippy-test-run/sources/stable/gh/CjS77/actix-demo:/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] 0a7ba42bfc8533aa005964e79659ef9c611e1525139cff7c9923573c21d2c9d0
[INFO] running `"docker" "start" "-a" "0a7ba42bfc8533aa005964e79659ef9c611e1525139cff7c9923573c21d2c9d0"`
[INFO] [stderr]     Blocking waiting for file lock on the registry index
[INFO] [stderr]     Checking failure v0.1.2
[INFO] [stderr]     Checking tokio-signal v0.2.5
[INFO] [stderr]     Checking trust-dns-proto v0.4.3
[INFO] [stderr]     Checking trust-dns-resolver v0.9.1
[INFO] [stderr]     Checking actix v0.7.5
[INFO] [stderr]     Checking actix-demo v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: length comparison to zero
[INFO] [stderr]   --> src/messages/oracle.rs:43:16
[INFO] [stderr]    |
[INFO] [stderr] 43 |             if self.subscribers.len() == 0 {
[INFO] [stderr]    |                ^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: using `is_empty` is clearer and more explicit: `self.subscribers.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/messages/oracle.rs:43:16
[INFO] [stderr]    |
[INFO] [stderr] 43 |             if self.subscribers.len() == 0 {
[INFO] [stderr]    |                ^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: using `is_empty` is clearer and more explicit: `self.subscribers.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]     Finished dev [unoptimized + debuginfo] target(s) in 30.59s
[INFO] running `"docker" "inspect" "0a7ba42bfc8533aa005964e79659ef9c611e1525139cff7c9923573c21d2c9d0"`
[INFO] running `"docker" "rm" "-f" "0a7ba42bfc8533aa005964e79659ef9c611e1525139cff7c9923573c21d2c9d0"`
[INFO] [stdout] 0a7ba42bfc8533aa005964e79659ef9c611e1525139cff7c9923573c21d2c9d0