[INFO] updating cached repository kojole/benchmark-concurrent-io
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/kojole/benchmark-concurrent-io
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/kojole/benchmark-concurrent-io" "work/ex/clippy-test-run/sources/stable/gh/kojole/benchmark-concurrent-io"`
[INFO] [stderr] Cloning into 'work/ex/clippy-test-run/sources/stable/gh/kojole/benchmark-concurrent-io'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/kojole/benchmark-concurrent-io" "work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/gh/kojole/benchmark-concurrent-io"`
[INFO] [stderr] Cloning into 'work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/gh/kojole/benchmark-concurrent-io'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 5670befbccd0f25b281482f1fa0009f0e321a18a
[INFO] sha for GitHub repo kojole/benchmark-concurrent-io: 5670befbccd0f25b281482f1fa0009f0e321a18a
[INFO] validating manifest of kojole/benchmark-concurrent-io 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 kojole/benchmark-concurrent-io 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 kojole/benchmark-concurrent-io
[INFO] finished frobbing kojole/benchmark-concurrent-io
[INFO] frobbed toml for kojole/benchmark-concurrent-io written to work/ex/clippy-test-run/sources/stable/gh/kojole/benchmark-concurrent-io/Cargo.toml
[INFO] started frobbing kojole/benchmark-concurrent-io
[INFO] finished frobbing kojole/benchmark-concurrent-io
[INFO] frobbed toml for kojole/benchmark-concurrent-io written to work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/gh/kojole/benchmark-concurrent-io/Cargo.toml
[INFO] crate kojole/benchmark-concurrent-io 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 kojole/benchmark-concurrent-io 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/kojole/benchmark-concurrent-io:/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] 8e9abccab6217cad4638b6538862f2bfd8d3db9f1e77bdaef804fa2afe6c7dbb
[INFO] running `"docker" "start" "-a" "8e9abccab6217cad4638b6538862f2bfd8d3db9f1e77bdaef804fa2afe6c7dbb"`
[INFO] [stderr]     Checking docopt v1.0.0
[INFO] [stderr]     Checking conio v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: casting u32 to f64 may become silently lossy if types change
[INFO] [stderr]   --> src/cmd/read.rs:17:18
[INFO] [stderr]    |
[INFO] [stderr] 17 |     let count = (num_segments as f64 / num_threads as f64).ceil() as u32;
[INFO] [stderr]    |                  ^^^^^^^^^^^^^^^^^^^ help: try: `f64::from(num_segments)`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::cast_lossless)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#cast_lossless
[INFO] [stderr] 
[INFO] [stderr] warning: casting u8 to f64 may become silently lossy if types change
[INFO] [stderr]   --> src/cmd/read.rs:17:40
[INFO] [stderr]    |
[INFO] [stderr] 17 |     let count = (num_segments as f64 / num_threads as f64).ceil() as u32;
[INFO] [stderr]    |                                        ^^^^^^^^^^^^^^^^^^ help: try: `f64::from(num_threads)`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#cast_lossless
[INFO] [stderr] 
[INFO] [stderr] warning: casting u8 to u32 may become silently lossy if types change
[INFO] [stderr]   --> src/cmd/read.rs:21:17
[INFO] [stderr]    |
[INFO] [stderr] 21 |     for i in 0..(num_threads as u32) {
[INFO] [stderr]    |                 ^^^^^^^^^^^^^^^^^^^^ help: try: `u32::from(num_threads)`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#cast_lossless
[INFO] [stderr] 
[INFO] [stderr] warning: casting u32 to u64 may become silently lossy if types change
[INFO] [stderr]   --> src/cmd/read.rs:62:19
[INFO] [stderr]    |
[INFO] [stderr] 62 |         let pos = self.range.start as u64 * SEGMENT_SIZE as u64;
[INFO] [stderr]    |                   ^^^^^^^^^^^^^^^^^^^^^^^ help: try: `u64::from(self.range.start)`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#cast_lossless
[INFO] [stderr] 
[INFO] [stderr] warning: casting u32 to u64 may become silently lossy if types change
[INFO] [stderr]   --> src/cmd/read.rs:69:20
[INFO] [stderr]    |
[INFO] [stderr] 69 |             sum += segment.id() as u64;
[INFO] [stderr]    |                    ^^^^^^^^^^^^^^^^^^^ help: try: `u64::from(segment.id())`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#cast_lossless
[INFO] [stderr] 
[INFO] [stderr] warning: casting u32 to f64 may become silently lossy if types change
[INFO] [stderr]   --> src/cmd/write.rs:17:18
[INFO] [stderr]    |
[INFO] [stderr] 17 |     let count = (num_segments as f64 / num_threads as f64).ceil() as u32;
[INFO] [stderr]    |                  ^^^^^^^^^^^^^^^^^^^ help: try: `f64::from(num_segments)`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#cast_lossless
[INFO] [stderr] 
[INFO] [stderr] warning: casting u8 to f64 may become silently lossy if types change
[INFO] [stderr]   --> src/cmd/write.rs:17:40
[INFO] [stderr]    |
[INFO] [stderr] 17 |     let count = (num_segments as f64 / num_threads as f64).ceil() as u32;
[INFO] [stderr]    |                                        ^^^^^^^^^^^^^^^^^^ help: try: `f64::from(num_threads)`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#cast_lossless
[INFO] [stderr] 
[INFO] [stderr] warning: casting u8 to u32 may become silently lossy if types change
[INFO] [stderr]   --> src/cmd/write.rs:21:17
[INFO] [stderr]    |
[INFO] [stderr] 21 |     for i in 0..(num_threads as u32) {
[INFO] [stderr]    |                 ^^^^^^^^^^^^^^^^^^^^ help: try: `u32::from(num_threads)`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#cast_lossless
[INFO] [stderr] 
[INFO] [stderr] warning: casting u32 to u64 may become silently lossy if types change
[INFO] [stderr]   --> src/cmd/write.rs:60:19
[INFO] [stderr]    |
[INFO] [stderr] 60 |         let pos = self.range.start as u64 * SEGMENT_SIZE as u64;
[INFO] [stderr]    |                   ^^^^^^^^^^^^^^^^^^^^^^^ help: try: `u64::from(self.range.start)`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#cast_lossless
[INFO] [stderr] 
[INFO] [stderr] warning: transmute from a pointer to a pointer
[INFO] [stderr]   --> src/segment.rs:24:33
[INFO] [stderr]    |
[INFO] [stderr] 24 |             let p: *const u32 = transmute(self.inner);
[INFO] [stderr]    |                                 ^^^^^^^^^^^^^^^^^^^^^ help: try: `self.inner as *const u32`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::transmute_ptr_to_ptr)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#transmute_ptr_to_ptr
[INFO] [stderr] 
[INFO] [stderr] warning: transmute from a pointer to a pointer
[INFO] [stderr]   --> src/segment.rs:31:31
[INFO] [stderr]    |
[INFO] [stderr] 31 |             let p: *mut u32 = transmute(self.inner);
[INFO] [stderr]    |                               ^^^^^^^^^^^^^^^^^^^^^ help: try: `self.inner as *mut u32`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#transmute_ptr_to_ptr
[INFO] [stderr] 
[INFO] [stderr] warning: casting u32 to f64 may become silently lossy if types change
[INFO] [stderr]   --> src/cmd/read.rs:17:18
[INFO] [stderr]    |
[INFO] [stderr] 17 |     let count = (num_segments as f64 / num_threads as f64).ceil() as u32;
[INFO] [stderr]    |                  ^^^^^^^^^^^^^^^^^^^ help: try: `f64::from(num_segments)`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::cast_lossless)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#cast_lossless
[INFO] [stderr] 
[INFO] [stderr] warning: casting u8 to f64 may become silently lossy if types change
[INFO] [stderr]   --> src/cmd/read.rs:17:40
[INFO] [stderr]    |
[INFO] [stderr] 17 |     let count = (num_segments as f64 / num_threads as f64).ceil() as u32;
[INFO] [stderr]    |                                        ^^^^^^^^^^^^^^^^^^ help: try: `f64::from(num_threads)`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#cast_lossless
[INFO] [stderr] 
[INFO] [stderr] warning: casting u8 to u32 may become silently lossy if types change
[INFO] [stderr]   --> src/cmd/read.rs:21:17
[INFO] [stderr]    |
[INFO] [stderr] 21 |     for i in 0..(num_threads as u32) {
[INFO] [stderr]    |                 ^^^^^^^^^^^^^^^^^^^^ help: try: `u32::from(num_threads)`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#cast_lossless
[INFO] [stderr] 
[INFO] [stderr] warning: casting u32 to u64 may become silently lossy if types change
[INFO] [stderr]   --> src/cmd/read.rs:62:19
[INFO] [stderr]    |
[INFO] [stderr] 62 |         let pos = self.range.start as u64 * SEGMENT_SIZE as u64;
[INFO] [stderr]    |                   ^^^^^^^^^^^^^^^^^^^^^^^ help: try: `u64::from(self.range.start)`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#cast_lossless
[INFO] [stderr] 
[INFO] [stderr] warning: casting u32 to u64 may become silently lossy if types change
[INFO] [stderr]   --> src/cmd/read.rs:69:20
[INFO] [stderr]    |
[INFO] [stderr] 69 |             sum += segment.id() as u64;
[INFO] [stderr]    |                    ^^^^^^^^^^^^^^^^^^^ help: try: `u64::from(segment.id())`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#cast_lossless
[INFO] [stderr] 
[INFO] [stderr] warning: casting u32 to f64 may become silently lossy if types change
[INFO] [stderr]   --> src/cmd/write.rs:17:18
[INFO] [stderr]    |
[INFO] [stderr] 17 |     let count = (num_segments as f64 / num_threads as f64).ceil() as u32;
[INFO] [stderr]    |                  ^^^^^^^^^^^^^^^^^^^ help: try: `f64::from(num_segments)`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#cast_lossless
[INFO] [stderr] 
[INFO] [stderr] warning: casting u8 to f64 may become silently lossy if types change
[INFO] [stderr]   --> src/cmd/write.rs:17:40
[INFO] [stderr]    |
[INFO] [stderr] 17 |     let count = (num_segments as f64 / num_threads as f64).ceil() as u32;
[INFO] [stderr]    |                                        ^^^^^^^^^^^^^^^^^^ help: try: `f64::from(num_threads)`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#cast_lossless
[INFO] [stderr] 
[INFO] [stderr] warning: casting u8 to u32 may become silently lossy if types change
[INFO] [stderr]   --> src/cmd/write.rs:21:17
[INFO] [stderr]    |
[INFO] [stderr] 21 |     for i in 0..(num_threads as u32) {
[INFO] [stderr]    |                 ^^^^^^^^^^^^^^^^^^^^ help: try: `u32::from(num_threads)`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#cast_lossless
[INFO] [stderr] 
[INFO] [stderr] warning: casting u32 to u64 may become silently lossy if types change
[INFO] [stderr]   --> src/cmd/write.rs:60:19
[INFO] [stderr]    |
[INFO] [stderr] 60 |         let pos = self.range.start as u64 * SEGMENT_SIZE as u64;
[INFO] [stderr]    |                   ^^^^^^^^^^^^^^^^^^^^^^^ help: try: `u64::from(self.range.start)`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#cast_lossless
[INFO] [stderr] 
[INFO] [stderr] warning: transmute from a pointer to a pointer
[INFO] [stderr]   --> src/segment.rs:24:33
[INFO] [stderr]    |
[INFO] [stderr] 24 |             let p: *const u32 = transmute(self.inner);
[INFO] [stderr]    |                                 ^^^^^^^^^^^^^^^^^^^^^ help: try: `self.inner as *const u32`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::transmute_ptr_to_ptr)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#transmute_ptr_to_ptr
[INFO] [stderr] 
[INFO] [stderr] warning: transmute from a pointer to a pointer
[INFO] [stderr]   --> src/segment.rs:31:31
[INFO] [stderr]    |
[INFO] [stderr] 31 |             let p: *mut u32 = transmute(self.inner);
[INFO] [stderr]    |                               ^^^^^^^^^^^^^^^^^^^^^ help: try: `self.inner as *mut u32`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#transmute_ptr_to_ptr
[INFO] [stderr] 
[INFO] [stderr] warning: Constants have by default a `'static` lifetime
[INFO] [stderr]   --> src/main.rs:13:15
[INFO] [stderr]    |
[INFO] [stderr] 13 | const USAGE: &'static str = "
[INFO] [stderr]    |              -^^^^^^^---- help: consider removing `'static`: `&str`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::const_static_lifetime)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#const_static_lifetime
[INFO] [stderr] 
[INFO] [stderr] warning: Constants have by default a `'static` lifetime
[INFO] [stderr]   --> src/main.rs:13:15
[INFO] [stderr]    |
[INFO] [stderr] 13 | const USAGE: &'static str = "
[INFO] [stderr]    |              -^^^^^^^---- help: consider removing `'static`: `&str`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::const_static_lifetime)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#const_static_lifetime
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 4.80s
[INFO] running `"docker" "inspect" "8e9abccab6217cad4638b6538862f2bfd8d3db9f1e77bdaef804fa2afe6c7dbb"`
[INFO] running `"docker" "rm" "-f" "8e9abccab6217cad4638b6538862f2bfd8d3db9f1e77bdaef804fa2afe6c7dbb"`
[INFO] [stdout] 8e9abccab6217cad4638b6538862f2bfd8d3db9f1e77bdaef804fa2afe6c7dbb