[INFO] updating cached repository koba-e964/mining-rust
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/koba-e964/mining-rust
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/koba-e964/mining-rust" "work/ex/clippy-test-run/sources/stable/gh/koba-e964/mining-rust"`
[INFO] [stderr] Cloning into 'work/ex/clippy-test-run/sources/stable/gh/koba-e964/mining-rust'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/koba-e964/mining-rust" "work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/gh/koba-e964/mining-rust"`
[INFO] [stderr] Cloning into 'work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/gh/koba-e964/mining-rust'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] bbd39ba2fcc26887b3b0960336d72e9926cc680a
[INFO] sha for GitHub repo koba-e964/mining-rust: bbd39ba2fcc26887b3b0960336d72e9926cc680a
[INFO] validating manifest of koba-e964/mining-rust 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 koba-e964/mining-rust 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 koba-e964/mining-rust
[INFO] finished frobbing koba-e964/mining-rust
[INFO] frobbed toml for koba-e964/mining-rust written to work/ex/clippy-test-run/sources/stable/gh/koba-e964/mining-rust/Cargo.toml
[INFO] started frobbing koba-e964/mining-rust
[INFO] finished frobbing koba-e964/mining-rust
[INFO] frobbed toml for koba-e964/mining-rust written to work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/gh/koba-e964/mining-rust/Cargo.toml
[INFO] crate koba-e964/mining-rust 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 koba-e964/mining-rust 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/koba-e964/mining-rust:/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] 1080ba0fd8c21949b0609612550a84094fdf0eae4c8a0f1feacc029a786d715a
[INFO] running `"docker" "start" "-a" "1080ba0fd8c21949b0609612550a84094fdf0eae4c8a0f1feacc029a786d715a"`
[INFO] [stderr]     Checking rand v0.4.1
[INFO] [stderr]     Checking rust-crypto v0.2.36
[INFO] [stderr]     Checking mining-rust v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: the loop variable `i` is only used to index `suffix`.
[INFO] [stderr]   --> src/main.rs:58:22
[INFO] [stderr]    |
[INFO] [stderr] 58 |             for i in 0 .. LEN {
[INFO] [stderr]    |                      ^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::needless_range_loop)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_range_loop
[INFO] [stderr] help: consider using an iterator
[INFO] [stderr]    |
[INFO] [stderr] 58 |             for <item> in suffix.iter_mut().take(LEN) {
[INFO] [stderr]    |                 ^^^^^^    ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: needlessly taken reference of both operands
[INFO] [stderr]   --> src/main.rs:66:23
[INFO] [stderr]    |
[INFO] [stderr] 66 |             } else if &buffer[0..4] < &[0, 0, 0, 0x40] {
[INFO] [stderr]    |                       ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::op_ref)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#op_ref
[INFO] [stderr] help: use the values directly
[INFO] [stderr]    |
[INFO] [stderr] 66 |             } else if buffer[0..4] < [0, 0, 0, 0x40] {
[INFO] [stderr]    |                       ^^^^^^^^^^^^   ^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: casting u32 to f64 may become silently lossy if types change
[INFO] [stderr]   --> src/main.rs:74:13
[INFO] [stderr]    |
[INFO] [stderr] 74 |             end.subsec_nanos() as f64 * 1e-9;
[INFO] [stderr]    |             ^^^^^^^^^^^^^^^^^^^^^^^^^ help: try: `f64::from(end.subsec_nanos())`
[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: the loop variable `i` is only used to index `suffix`.
[INFO] [stderr]   --> src/main.rs:58:22
[INFO] [stderr]    |
[INFO] [stderr] 58 |             for i in 0 .. LEN {
[INFO] [stderr]    |                      ^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::needless_range_loop)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_range_loop
[INFO] [stderr] help: consider using an iterator
[INFO] [stderr]    |
[INFO] [stderr] 58 |             for <item> in suffix.iter_mut().take(LEN) {
[INFO] [stderr]    |                 ^^^^^^    ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: needlessly taken reference of both operands
[INFO] [stderr]   --> src/main.rs:66:23
[INFO] [stderr]    |
[INFO] [stderr] 66 |             } else if &buffer[0..4] < &[0, 0, 0, 0x40] {
[INFO] [stderr]    |                       ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::op_ref)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#op_ref
[INFO] [stderr] help: use the values directly
[INFO] [stderr]    |
[INFO] [stderr] 66 |             } else if buffer[0..4] < [0, 0, 0, 0x40] {
[INFO] [stderr]    |                       ^^^^^^^^^^^^   ^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: casting u32 to f64 may become silently lossy if types change
[INFO] [stderr]   --> src/main.rs:74:13
[INFO] [stderr]    |
[INFO] [stderr] 74 |             end.subsec_nanos() as f64 * 1e-9;
[INFO] [stderr]    |             ^^^^^^^^^^^^^^^^^^^^^^^^^ help: try: `f64::from(end.subsec_nanos())`
[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]     Finished dev [unoptimized + debuginfo] target(s) in 7.81s
[INFO] running `"docker" "inspect" "1080ba0fd8c21949b0609612550a84094fdf0eae4c8a0f1feacc029a786d715a"`
[INFO] running `"docker" "rm" "-f" "1080ba0fd8c21949b0609612550a84094fdf0eae4c8a0f1feacc029a786d715a"`
[INFO] [stdout] 1080ba0fd8c21949b0609612550a84094fdf0eae4c8a0f1feacc029a786d715a