[INFO] crate machine 0.1.0 is already in cache
[INFO] extracting crate machine 0.1.0 into work/ex/clippy-test-run/sources/stable/reg/machine/0.1.0
[INFO] extracting crate machine 0.1.0 into work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/reg/machine/0.1.0
[INFO] validating manifest of machine-0.1.0 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 machine-0.1.0 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 machine-0.1.0
[INFO] finished frobbing machine-0.1.0
[INFO] frobbed toml for machine-0.1.0 written to work/ex/clippy-test-run/sources/stable/reg/machine/0.1.0/Cargo.toml
[INFO] started frobbing machine-0.1.0
[INFO] finished frobbing machine-0.1.0
[INFO] frobbed toml for machine-0.1.0 written to work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/reg/machine/0.1.0/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 machine-0.1.0 against stable for clippy-test-run
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/clippy-test-run/worker-7/stable:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/clippy-test-run/sources/stable/reg/machine/0.1.0:/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] f05ae80adb85e9ba56b2e027ef852013bd38eff473bdde80b9295dbf736691f4
[INFO] running `"docker" "start" "-a" "f05ae80adb85e9ba56b2e027ef852013bd38eff473bdde80b9295dbf736691f4"`
[INFO] [stderr]     Checking machine v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: unneeded return statement
[INFO] [stderr]   --> examples/prototype.rs:39:5
[INFO] [stderr]    |
[INFO] [stderr] 39 | /     return Machine {
[INFO] [stderr] 40 | |       state: SB { b: 1 },
[INFO] [stderr] 41 | |       counter: self.counter
[INFO] [stderr] 42 | |     }
[INFO] [stderr]    | |_____^
[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] help: remove `return` as shown
[INFO] [stderr]    |
[INFO] [stderr] 39 |     Machine {
[INFO] [stderr] 40 |       state: SB { b: 1 },
[INFO] [stderr] 41 |       counter: self.counter
[INFO] [stderr] 42 |     }
[INFO] [stderr]    |
[INFO] [stderr] 
[INFO] [stderr] warning: unneeded return statement
[INFO] [stderr]   --> examples/prototype.rs:49:5
[INFO] [stderr]    |
[INFO] [stderr] 49 | /     return Machine {
[INFO] [stderr] 50 | |       state: SC,
[INFO] [stderr] 51 | |       counter: 0
[INFO] [stderr] 52 | |     }
[INFO] [stderr]    | |_____^
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_return
[INFO] [stderr] help: remove `return` as shown
[INFO] [stderr]    |
[INFO] [stderr] 49 |     Machine {
[INFO] [stderr] 50 |       state: SC,
[INFO] [stderr] 51 |       counter: 0
[INFO] [stderr] 52 |     }
[INFO] [stderr]    |
[INFO] [stderr] 
[INFO] [stderr] warning: unneeded return statement
[INFO] [stderr]   --> examples/prototype.rs:58:5
[INFO] [stderr]    |
[INFO] [stderr] 58 | /     return Machine {
[INFO] [stderr] 59 | |       state: SA,
[INFO] [stderr] 60 | |       counter: 0
[INFO] [stderr] 61 | |     }
[INFO] [stderr]    | |_____^
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_return
[INFO] [stderr] help: remove `return` as shown
[INFO] [stderr]    |
[INFO] [stderr] 58 |     Machine {
[INFO] [stderr] 59 |       state: SA,
[INFO] [stderr] 60 |       counter: 0
[INFO] [stderr] 61 |     }
[INFO] [stderr]    |
[INFO] [stderr] 
[INFO] [stderr] warning: unneeded return statement
[INFO] [stderr]   --> examples/prototype.rs:68:5
[INFO] [stderr]    |
[INFO] [stderr] 68 | /     return Machine {
[INFO] [stderr] 69 | |       state: SA,
[INFO] [stderr] 70 | |       counter: 0
[INFO] [stderr] 71 | |     }
[INFO] [stderr]    | |_____^
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_return
[INFO] [stderr] help: remove `return` as shown
[INFO] [stderr]    |
[INFO] [stderr] 68 |     Machine {
[INFO] [stderr] 69 |       state: SA,
[INFO] [stderr] 70 |       counter: 0
[INFO] [stderr] 71 |     }
[INFO] [stderr]    |
[INFO] [stderr] 
[INFO] [stderr] warning: manual implementation of an assign operation
[INFO] [stderr]   --> tests/traffic_light.rs:31:5
[INFO] [stderr]    |
[INFO] [stderr] 31 |     self.cars = self.cars + 1;
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^ help: replace it with: `self.cars += 1`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::assign_op_pattern)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#assign_op_pattern
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2.04s
[INFO] running `"docker" "inspect" "f05ae80adb85e9ba56b2e027ef852013bd38eff473bdde80b9295dbf736691f4"`
[INFO] running `"docker" "rm" "-f" "f05ae80adb85e9ba56b2e027ef852013bd38eff473bdde80b9295dbf736691f4"`
[INFO] [stdout] f05ae80adb85e9ba56b2e027ef852013bd38eff473bdde80b9295dbf736691f4