[INFO] crate rotor-test 0.2.0 is already in cache
[INFO] extracting crate rotor-test 0.2.0 into work/ex/clippy-test-run/sources/stable/reg/rotor-test/0.2.0
[INFO] extracting crate rotor-test 0.2.0 into work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/reg/rotor-test/0.2.0
[INFO] validating manifest of rotor-test-0.2.0 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 rotor-test-0.2.0 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 rotor-test-0.2.0
[INFO] finished frobbing rotor-test-0.2.0
[INFO] frobbed toml for rotor-test-0.2.0 written to work/ex/clippy-test-run/sources/stable/reg/rotor-test/0.2.0/Cargo.toml
[INFO] started frobbing rotor-test-0.2.0
[INFO] finished frobbing rotor-test-0.2.0
[INFO] frobbed toml for rotor-test-0.2.0 written to work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/reg/rotor-test/0.2.0/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 rotor-test-0.2.0 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/reg/rotor-test/0.2.0:/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] aaec38134722449add2c4f1f1c257d12da0aec643fb88fc9757fba20580971e1
[INFO] running `"docker" "start" "-a" "aaec38134722449add2c4f1f1c257d12da0aec643fb88fc9757fba20580971e1"`
[INFO] [stderr]     Checking netbuf v0.3.8
[INFO] [stderr]     Checking rotor v0.6.3
[INFO] [stderr]     Checking rotor-tools v0.3.2
[INFO] [stderr]     Checking rotor-stream v0.6.2
[INFO] [stderr]     Checking rotor-test v0.2.0 (/opt/crater/workdir)
[INFO] [stderr] warning: this `else { if .. }` block can be collapsed
[INFO] [stderr]    --> src/stream.rs:107:16
[INFO] [stderr]     |
[INFO] [stderr] 107 |           } else {
[INFO] [stderr]     |  ________________^
[INFO] [stderr] 108 | |             if bufs.input_closed {
[INFO] [stderr] 109 | |                 Ok(0)
[INFO] [stderr] 110 | |             } else {
[INFO] [stderr] ...   |
[INFO] [stderr] 113 | |             }
[INFO] [stderr] 114 | |         }
[INFO] [stderr]     | |_________^
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(clippy::collapsible_if)] on by default
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#collapsible_if
[INFO] [stderr] help: try
[INFO] [stderr]     |
[INFO] [stderr] 107 |         } else if bufs.input_closed {
[INFO] [stderr] 108 |     Ok(0)
[INFO] [stderr] 109 | } else {
[INFO] [stderr] 110 |     Err(io::Error::new(io::ErrorKind::WouldBlock,
[INFO] [stderr] 111 |         "no data in mocked input buffer"))
[INFO] [stderr] 112 | }
[INFO] [stderr]     |
[INFO] [stderr] 
[INFO] [stderr] warning: field is never used: `event_loop`
[INFO] [stderr]   --> src/scope.rs:25:5
[INFO] [stderr]    |
[INFO] [stderr] 25 |     event_loop: mio::EventLoop<Handler>,
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(dead_code)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: you should consider adding a `Default` implementation for `stream::MemIo`
[INFO] [stderr]   --> src/stream.rs:34:5
[INFO] [stderr]    |
[INFO] [stderr] 34 | /     pub fn new() -> MemIo {
[INFO] [stderr] 35 | |         MemIo(Arc::new(Mutex::new(Bufs {
[INFO] [stderr] 36 | |             input: Vec::new(),
[INFO] [stderr] 37 | |             input_closed: false,
[INFO] [stderr] 38 | |             output: Vec::new(),
[INFO] [stderr] 39 | |         })))
[INFO] [stderr] 40 | |     }
[INFO] [stderr]    | |_____^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::new_without_default)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#new_without_default
[INFO] [stderr] help: try this
[INFO] [stderr]    |
[INFO] [stderr] 30 | impl Default for stream::MemIo {
[INFO] [stderr] 31 |     fn default() -> Self {
[INFO] [stderr] 32 |         Self::new()
[INFO] [stderr] 33 |     }
[INFO] [stderr] 34 | }
[INFO] [stderr]    |
[INFO] [stderr] 
[INFO] [stderr] error: handle written amount returned or use `Write::write_all` instead
[INFO] [stderr]    --> src/stream.rs:156:9
[INFO] [stderr]     |
[INFO] [stderr] 156 |         s.write(b"hello").expect("write failed");
[INFO] [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[deny(clippy::unused_io_amount)] on by default
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#unused_io_amount
[INFO] [stderr] 
[INFO] [stderr] error: handle written amount returned or use `Write::write_all` instead
[INFO] [stderr]    --> src/stream.rs:157:9
[INFO] [stderr]     |
[INFO] [stderr] 157 |         s.write(b"world").expect("write failed");
[INFO] [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#unused_io_amount
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to 2 previous errors
[INFO] [stderr] 
[INFO] [stderr] error: Could not compile `rotor-test`.
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] warning: this `else { if .. }` block can be collapsed
[INFO] [stderr]    --> src/stream.rs:107:16
[INFO] [stderr]     |
[INFO] [stderr] 107 |           } else {
[INFO] [stderr]     |  ________________^
[INFO] [stderr] 108 | |             if bufs.input_closed {
[INFO] [stderr] 109 | |                 Ok(0)
[INFO] [stderr] 110 | |             } else {
[INFO] [stderr] ...   |
[INFO] [stderr] 113 | |             }
[INFO] [stderr] 114 | |         }
[INFO] [stderr]     | |_________^
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(clippy::collapsible_if)] on by default
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#collapsible_if
[INFO] [stderr] help: try
[INFO] [stderr]     |
[INFO] [stderr] 107 |         } else if bufs.input_closed {
[INFO] [stderr] 108 |     Ok(0)
[INFO] [stderr] 109 | } else {
[INFO] [stderr] 110 |     Err(io::Error::new(io::ErrorKind::WouldBlock,
[INFO] [stderr] 111 |         "no data in mocked input buffer"))
[INFO] [stderr] 112 | }
[INFO] [stderr]     |
[INFO] [stderr] 
[INFO] [stderr] warning: field is never used: `event_loop`
[INFO] [stderr]   --> src/scope.rs:25:5
[INFO] [stderr]    |
[INFO] [stderr] 25 |     event_loop: mio::EventLoop<Handler>,
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(dead_code)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: you should consider adding a `Default` implementation for `stream::MemIo`
[INFO] [stderr]   --> src/stream.rs:34:5
[INFO] [stderr]    |
[INFO] [stderr] 34 | /     pub fn new() -> MemIo {
[INFO] [stderr] 35 | |         MemIo(Arc::new(Mutex::new(Bufs {
[INFO] [stderr] 36 | |             input: Vec::new(),
[INFO] [stderr] 37 | |             input_closed: false,
[INFO] [stderr] 38 | |             output: Vec::new(),
[INFO] [stderr] 39 | |         })))
[INFO] [stderr] 40 | |     }
[INFO] [stderr]    | |_____^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::new_without_default)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#new_without_default
[INFO] [stderr] help: try this
[INFO] [stderr]    |
[INFO] [stderr] 30 | impl Default for stream::MemIo {
[INFO] [stderr] 31 |     fn default() -> Self {
[INFO] [stderr] 32 |         Self::new()
[INFO] [stderr] 33 |     }
[INFO] [stderr] 34 | }
[INFO] [stderr]    |
[INFO] [stderr] 
[INFO] [stderr] error: build failed
[INFO] running `"docker" "inspect" "aaec38134722449add2c4f1f1c257d12da0aec643fb88fc9757fba20580971e1"`
[INFO] running `"docker" "rm" "-f" "aaec38134722449add2c4f1f1c257d12da0aec643fb88fc9757fba20580971e1"`
[INFO] [stdout] aaec38134722449add2c4f1f1c257d12da0aec643fb88fc9757fba20580971e1