[INFO] updating cached repository WanzenBug/rust-fixed-capacity-vec
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/WanzenBug/rust-fixed-capacity-vec
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/WanzenBug/rust-fixed-capacity-vec" "work/ex/clippy-test-run/sources/stable/gh/WanzenBug/rust-fixed-capacity-vec"`
[INFO] [stderr] Cloning into 'work/ex/clippy-test-run/sources/stable/gh/WanzenBug/rust-fixed-capacity-vec'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/WanzenBug/rust-fixed-capacity-vec" "work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/gh/WanzenBug/rust-fixed-capacity-vec"`
[INFO] [stderr] Cloning into 'work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/gh/WanzenBug/rust-fixed-capacity-vec'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 7708bc7ca5979d037e48c848f0bd2e8be7bb5023
[INFO] sha for GitHub repo WanzenBug/rust-fixed-capacity-vec: 7708bc7ca5979d037e48c848f0bd2e8be7bb5023
[INFO] validating manifest of WanzenBug/rust-fixed-capacity-vec 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 WanzenBug/rust-fixed-capacity-vec 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 WanzenBug/rust-fixed-capacity-vec
[INFO] finished frobbing WanzenBug/rust-fixed-capacity-vec
[INFO] frobbed toml for WanzenBug/rust-fixed-capacity-vec written to work/ex/clippy-test-run/sources/stable/gh/WanzenBug/rust-fixed-capacity-vec/Cargo.toml
[INFO] started frobbing WanzenBug/rust-fixed-capacity-vec
[INFO] finished frobbing WanzenBug/rust-fixed-capacity-vec
[INFO] frobbed toml for WanzenBug/rust-fixed-capacity-vec written to work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/gh/WanzenBug/rust-fixed-capacity-vec/Cargo.toml
[INFO] crate WanzenBug/rust-fixed-capacity-vec 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 WanzenBug/rust-fixed-capacity-vec against stable for clippy-test-run
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/clippy-test-run/worker-4/stable:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/clippy-test-run/sources/stable/gh/WanzenBug/rust-fixed-capacity-vec:/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] b0d17d573727474035002526b9359c179484882f2c9e91c95daaf1ca888df4ae
[INFO] running `"docker" "start" "-a" "b0d17d573727474035002526b9359c179484882f2c9e91c95daaf1ca888df4ae"`
[INFO] [stderr]     Checking fixed_capacity_vec v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: item `FixedCapacityVec<'a, T>` has a public `len` method but no corresponding `is_empty` method
[INFO] [stderr]    --> src/lib.rs:261:1
[INFO] [stderr]     |
[INFO] [stderr] 261 | / impl<'a, T> FixedCapacityVec<'a, T>
[INFO] [stderr] 262 | | where
[INFO] [stderr] 263 | |     T: 'a,
[INFO] [stderr] 264 | | {
[INFO] [stderr] ...   |
[INFO] [stderr] 330 | |     }
[INFO] [stderr] 331 | | }
[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: item `FixedCapacityVec<'a, T>` has a public `len` method but no corresponding `is_empty` method
[INFO] [stderr]    --> src/lib.rs:261:1
[INFO] [stderr]     |
[INFO] [stderr] 261 | / impl<'a, T> FixedCapacityVec<'a, T>
[INFO] [stderr] 262 | | where
[INFO] [stderr] 263 | |     T: 'a,
[INFO] [stderr] 264 | | {
[INFO] [stderr] ...   |
[INFO] [stderr] 330 | |     }
[INFO] [stderr] 331 | | }
[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] error[E0554]: #![feature] may not be used on the stable release channel
[INFO] [stderr]  --> benches/decode_rle.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 `fixed_capacity_vec`.
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `"docker" "inspect" "b0d17d573727474035002526b9359c179484882f2c9e91c95daaf1ca888df4ae"`
[INFO] running `"docker" "rm" "-f" "b0d17d573727474035002526b9359c179484882f2c9e91c95daaf1ca888df4ae"`
[INFO] [stdout] b0d17d573727474035002526b9359c179484882f2c9e91c95daaf1ca888df4ae