[INFO] crate embed_js_derive 0.1.2 is already in cache
[INFO] extracting crate embed_js_derive 0.1.2 into work/ex/clippy-test-run/sources/stable/reg/embed_js_derive/0.1.2
[INFO] extracting crate embed_js_derive 0.1.2 into work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/reg/embed_js_derive/0.1.2
[INFO] validating manifest of embed_js_derive-0.1.2 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 embed_js_derive-0.1.2 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 embed_js_derive-0.1.2
[INFO] finished frobbing embed_js_derive-0.1.2
[INFO] frobbed toml for embed_js_derive-0.1.2 written to work/ex/clippy-test-run/sources/stable/reg/embed_js_derive/0.1.2/Cargo.toml
[INFO] started frobbing embed_js_derive-0.1.2
[INFO] finished frobbing embed_js_derive-0.1.2
[INFO] frobbed toml for embed_js_derive-0.1.2 written to work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/reg/embed_js_derive/0.1.2/Cargo.toml
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+stable" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+stable" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[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 embed_js_derive-0.1.2 against stable for clippy-test-run
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/clippy-test-run/worker-6/stable:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/clippy-test-run/sources/stable/reg/embed_js_derive/0.1.2:/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] 91a86aa0327f6d3885aae61c6c0c74bd2fe16fb2782c22e8d2f63d8b4ade9df3
[INFO] running `"docker" "start" "-a" "91a86aa0327f6d3885aae61c6c0c74bd2fe16fb2782c22e8d2f63d8b4ade9df3"`
[INFO] [stderr]     Checking cpp_synom v0.12.0
[INFO] [stderr]     Checking memchr v1.0.2
[INFO] [stderr]     Checking cpp_syn v0.12.0
[INFO] [stderr]     Checking cpp_synmap v0.3.0
[INFO] [stderr]     Checking embed_js_common v0.3.0
[INFO] [stderr]     Checking embed_js_derive v0.1.2 (/opt/crater/workdir)
[INFO] [stderr] warning: length comparison to zero
[INFO] [stderr]   --> src/lib.rs:78:26
[INFO] [stderr]    |
[INFO] [stderr] 78 |     let type_params = if type_params.len() == 0 {
[INFO] [stderr]    |                          ^^^^^^^^^^^^^^^^^^^^^^ help: using `is_empty` is clearer and more explicit: `type_params.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:78:26
[INFO] [stderr]    |
[INFO] [stderr] 78 |     let type_params = if type_params.len() == 0 {
[INFO] [stderr]    |                          ^^^^^^^^^^^^^^^^^^^^^^ help: using `is_empty` is clearer and more explicit: `type_params.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 13.71s
[INFO] running `"docker" "inspect" "91a86aa0327f6d3885aae61c6c0c74bd2fe16fb2782c22e8d2f63d8b4ade9df3"`
[INFO] running `"docker" "rm" "-f" "91a86aa0327f6d3885aae61c6c0c74bd2fe16fb2782c22e8d2f63d8b4ade9df3"`
[INFO] [stdout] 91a86aa0327f6d3885aae61c6c0c74bd2fe16fb2782c22e8d2f63d8b4ade9df3