[INFO] updating cached repository blt/fd_test [INFO] running `"git" "fetch" "--all"` [INFO] [stdout] Fetching origin [INFO] [stderr] From git://github.com/blt/fd_test [INFO] [stderr] * branch HEAD -> FETCH_HEAD [INFO] running `"git" "clone" "work/cache/sources/gh/blt/fd_test" "work/ex/clippy-test-run/sources/stable/gh/blt/fd_test"` [INFO] [stderr] Cloning into 'work/ex/clippy-test-run/sources/stable/gh/blt/fd_test'... [INFO] [stderr] done. [INFO] running `"git" "clone" "work/cache/sources/gh/blt/fd_test" "work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/gh/blt/fd_test"` [INFO] [stderr] Cloning into 'work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/gh/blt/fd_test'... [INFO] [stderr] done. [INFO] running `"git" "rev-parse" "HEAD"` [INFO] [stdout] 0e5cbbac481b0b14510b69a417dcfc320aee92cc [INFO] sha for GitHub repo blt/fd_test: 0e5cbbac481b0b14510b69a417dcfc320aee92cc [INFO] validating manifest of blt/fd_test 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 blt/fd_test 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 blt/fd_test [INFO] finished frobbing blt/fd_test [INFO] frobbed toml for blt/fd_test written to work/ex/clippy-test-run/sources/stable/gh/blt/fd_test/Cargo.toml [INFO] started frobbing blt/fd_test [INFO] finished frobbing blt/fd_test [INFO] frobbed toml for blt/fd_test written to work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/gh/blt/fd_test/Cargo.toml [INFO] crate blt/fd_test 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 blt/fd_test 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/blt/fd_test:/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] b40f99c2ebcd5e8da0afa337cb3f362d96a4391952b24e4ffec5c7283b8e70f0 [INFO] running `"docker" "start" "-a" "b40f99c2ebcd5e8da0afa337cb3f362d96a4391952b24e4ffec5c7283b8e70f0"` [INFO] [stderr] Checking hopper v0.3.1 [INFO] [stderr] Checking fd_test v0.1.0 (/opt/crater/workdir) [INFO] [stderr] warning: unneeded unit return type [INFO] [stderr] --> src/bin/fd_test.rs:12:54 [INFO] [stderr] | [INFO] [stderr] 12 | fn send(idx: usize, mut sender: hopper::Sender) -> () { [INFO] [stderr] | ^^^^^ help: remove the `-> ()` [INFO] [stderr] | [INFO] [stderr] = note: #[warn(clippy::unused_unit)] on by default [INFO] [stderr] = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#unused_unit [INFO] [stderr] [INFO] [stderr] warning: unneeded unit return type [INFO] [stderr] --> src/bin/fd_test.rs:23:54 [INFO] [stderr] | [INFO] [stderr] 23 | fn recv(idx: usize, receiver: hopper::Receiver) -> () { [INFO] [stderr] | ^^^^^ help: remove the `-> ()` [INFO] [stderr] | [INFO] [stderr] = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#unused_unit [INFO] [stderr] [INFO] [stderr] warning: unneeded unit return type [INFO] [stderr] --> src/bin/fd_test.rs:39:14 [INFO] [stderr] | [INFO] [stderr] 39 | fn monitor() -> () { [INFO] [stderr] | ^^^^^ help: remove the `-> ()` [INFO] [stderr] | [INFO] [stderr] = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#unused_unit [INFO] [stderr] [INFO] [stderr] warning: unneeded unit return type [INFO] [stderr] --> src/bin/fd_test.rs:12:54 [INFO] [stderr] | [INFO] [stderr] 12 | fn send(idx: usize, mut sender: hopper::Sender) -> () { [INFO] [stderr] | ^^^^^ help: remove the `-> ()` [INFO] [stderr] | [INFO] [stderr] = note: #[warn(clippy::unused_unit)] on by default [INFO] [stderr] = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#unused_unit [INFO] [stderr] [INFO] [stderr] warning: unneeded unit return type [INFO] [stderr] --> src/bin/fd_test.rs:23:54 [INFO] [stderr] | [INFO] [stderr] 23 | fn recv(idx: usize, receiver: hopper::Receiver) -> () { [INFO] [stderr] | ^^^^^ help: remove the `-> ()` [INFO] [stderr] | [INFO] [stderr] = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#unused_unit [INFO] [stderr] [INFO] [stderr] warning: unneeded unit return type [INFO] [stderr] --> src/bin/fd_test.rs:39:14 [INFO] [stderr] | [INFO] [stderr] 39 | fn monitor() -> () { [INFO] [stderr] | ^^^^^ help: remove the `-> ()` [INFO] [stderr] | [INFO] [stderr] = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#unused_unit [INFO] [stderr] [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 2.73s [INFO] running `"docker" "inspect" "b40f99c2ebcd5e8da0afa337cb3f362d96a4391952b24e4ffec5c7283b8e70f0"` [INFO] running `"docker" "rm" "-f" "b40f99c2ebcd5e8da0afa337cb3f362d96a4391952b24e4ffec5c7283b8e70f0"` [INFO] [stdout] b40f99c2ebcd5e8da0afa337cb3f362d96a4391952b24e4ffec5c7283b8e70f0