[INFO] updating cached repository hejile/tcpspeedtest
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/hejile/tcpspeedtest
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/hejile/tcpspeedtest" "work/ex/clippy-test-run/sources/stable/gh/hejile/tcpspeedtest"`
[INFO] [stderr] Cloning into 'work/ex/clippy-test-run/sources/stable/gh/hejile/tcpspeedtest'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/hejile/tcpspeedtest" "work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/gh/hejile/tcpspeedtest"`
[INFO] [stderr] Cloning into 'work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/gh/hejile/tcpspeedtest'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] a84fa28592a6f45a842e296e4c1a64fad0af01d6
[INFO] sha for GitHub repo hejile/tcpspeedtest: a84fa28592a6f45a842e296e4c1a64fad0af01d6
[INFO] validating manifest of hejile/tcpspeedtest 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 hejile/tcpspeedtest 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 hejile/tcpspeedtest
[INFO] finished frobbing hejile/tcpspeedtest
[INFO] frobbed toml for hejile/tcpspeedtest written to work/ex/clippy-test-run/sources/stable/gh/hejile/tcpspeedtest/Cargo.toml
[INFO] started frobbing hejile/tcpspeedtest
[INFO] finished frobbing hejile/tcpspeedtest
[INFO] frobbed toml for hejile/tcpspeedtest written to work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/gh/hejile/tcpspeedtest/Cargo.toml
[INFO] crate hejile/tcpspeedtest 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 hejile/tcpspeedtest against stable+rustflags=-Dclippy::into_iter_on_array for clippy-test-run
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/clippy-test-run/worker-7/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/gh/hejile/tcpspeedtest:/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 -Dclippy::into_iter_on_array" "-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] 8cf9eb819d3e8109335b45d1214846355e7c3fc54b7b5e664a07b1384d7970df
[INFO] running `"docker" "start" "-a" "8cf9eb819d3e8109335b45d1214846355e7c3fc54b7b5e664a07b1384d7970df"`
[INFO] [stderr]     Checking tcpspeedtest v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: long literal lacking separators
[INFO] [stderr]  --> src/main.rs:9:20
[INFO] [stderr]   |
[INFO] [stderr] 9 |     buf.push(((n & 0xff000000) >> 24) as u8);
[INFO] [stderr]   |                    ^^^^^^^^^^ help: consider: `0xff00_0000`
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(clippy::unreadable_literal)] on by default
[INFO] [stderr]   = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#unreadable_literal
[INFO] [stderr] 
[INFO] [stderr] warning: long literal lacking separators
[INFO] [stderr]   --> src/main.rs:10:20
[INFO] [stderr]    |
[INFO] [stderr] 10 |     buf.push(((n & 0x00ff0000) >> 16) as u8);
[INFO] [stderr]    |                    ^^^^^^^^^^ help: consider: `0x00ff_0000`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#unreadable_literal
[INFO] [stderr] 
[INFO] [stderr] warning: long literal lacking separators
[INFO] [stderr]   --> src/main.rs:11:20
[INFO] [stderr]    |
[INFO] [stderr] 11 |     buf.push(((n & 0x0000ff00) >> 8) as u8);
[INFO] [stderr]    |                    ^^^^^^^^^^ help: consider: `0x0000_ff00`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#unreadable_literal
[INFO] [stderr] 
[INFO] [stderr] warning: long literal lacking separators
[INFO] [stderr]   --> src/main.rs:12:20
[INFO] [stderr]    |
[INFO] [stderr] 12 |     buf.push(((n & 0x000000ff) >> 0) as u8);
[INFO] [stderr]    |                    ^^^^^^^^^^ help: consider: `0x0000_00ff`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#unreadable_literal
[INFO] [stderr] 
[INFO] [stderr] warning: long literal lacking separators
[INFO] [stderr]  --> src/main.rs:9:20
[INFO] [stderr]   |
[INFO] [stderr] 9 |     buf.push(((n & 0xff000000) >> 24) as u8);
[INFO] [stderr]   |                    ^^^^^^^^^^ help: consider: `0xff00_0000`
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(clippy::unreadable_literal)] on by default
[INFO] [stderr]   = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#unreadable_literal
[INFO] [stderr] 
[INFO] [stderr] warning: long literal lacking separators
[INFO] [stderr]   --> src/main.rs:10:20
[INFO] [stderr]    |
[INFO] [stderr] 10 |     buf.push(((n & 0x00ff0000) >> 16) as u8);
[INFO] [stderr]    |                    ^^^^^^^^^^ help: consider: `0x00ff_0000`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#unreadable_literal
[INFO] [stderr] 
[INFO] [stderr] warning: long literal lacking separators
[INFO] [stderr]   --> src/main.rs:11:20
[INFO] [stderr]    |
[INFO] [stderr] 11 |     buf.push(((n & 0x0000ff00) >> 8) as u8);
[INFO] [stderr]    |                    ^^^^^^^^^^ help: consider: `0x0000_ff00`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#unreadable_literal
[INFO] [stderr] 
[INFO] [stderr] warning: long literal lacking separators
[INFO] [stderr]   --> src/main.rs:12:20
[INFO] [stderr]    |
[INFO] [stderr] 12 |     buf.push(((n & 0x000000ff) >> 0) as u8);
[INFO] [stderr]    |                    ^^^^^^^^^^ help: consider: `0x0000_00ff`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#unreadable_literal
[INFO] [stderr] 
[INFO] [stderr] warning: value assigned to `total_bytes` is never read
[INFO] [stderr]   --> src/main.rs:36:13
[INFO] [stderr]    |
[INFO] [stderr] 36 |     let mut total_bytes = 0;
[INFO] [stderr]    |             ^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_assignments)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: value assigned to `upload_dur` is never read
[INFO] [stderr]   --> src/main.rs:58:13
[INFO] [stderr]    |
[INFO] [stderr] 58 |     let mut upload_dur = 0usize;
[INFO] [stderr]    |             ^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: the operation is ineffective. Consider reducing it to `(n & 0x000000ff)`
[INFO] [stderr]   --> src/main.rs:12:14
[INFO] [stderr]    |
[INFO] [stderr] 12 |     buf.push(((n & 0x000000ff) >> 0) as u8);
[INFO] [stderr]    |              ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::identity_op)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#identity_op
[INFO] [stderr] 
[INFO] [stderr] warning: casting u8 to u32 may become silently lossy if types change
[INFO] [stderr]   --> src/main.rs:19:10
[INFO] [stderr]    |
[INFO] [stderr] 19 |     n += (buf[0] as u32) << 24;
[INFO] [stderr]    |          ^^^^^^^^^^^^^^^ help: try: `u32::from(buf[0])`
[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 u32 may become silently lossy if types change
[INFO] [stderr]   --> src/main.rs:20:10
[INFO] [stderr]    |
[INFO] [stderr] 20 |     n += (buf[1] as u32) << 16;
[INFO] [stderr]    |          ^^^^^^^^^^^^^^^ help: try: `u32::from(buf[1])`
[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/main.rs:21:10
[INFO] [stderr]    |
[INFO] [stderr] 21 |     n += (buf[2] as u32) << 8;
[INFO] [stderr]    |          ^^^^^^^^^^^^^^^ help: try: `u32::from(buf[2])`
[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: the operation is ineffective. Consider reducing it to `(buf[3] as u32)`
[INFO] [stderr]   --> src/main.rs:22:10
[INFO] [stderr]    |
[INFO] [stderr] 22 |     n += (buf[3] as u32) << 0;
[INFO] [stderr]    |          ^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#identity_op
[INFO] [stderr] 
[INFO] [stderr] warning: casting u8 to u32 may become silently lossy if types change
[INFO] [stderr]   --> src/main.rs:22:10
[INFO] [stderr]    |
[INFO] [stderr] 22 |     n += (buf[3] as u32) << 0;
[INFO] [stderr]    |          ^^^^^^^^^^^^^^^ help: try: `u32::from(buf[3])`
[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: the loop variable `i` is only used to index `buf`.
[INFO] [stderr]   --> src/main.rs:28:14
[INFO] [stderr]    |
[INFO] [stderr] 28 |     for i in 0..buf.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] 28 |     for <item> in &mut buf {
[INFO] [stderr]    |         ^^^^^^    ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: slow zero-filling initialization
[INFO] [stderr]   --> src/main.rs:49:5
[INFO] [stderr]    |
[INFO] [stderr] 48 |     let mut upload_buf: Vec<u8> = Vec::with_capacity(total_bytes);
[INFO] [stderr]    |                                   ------------------------------- help: consider replace allocation with: `vec![0; total_bytes]`
[INFO] [stderr] 49 |     upload_buf.resize(total_bytes, 0);
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::slow_vector_initialization)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#slow_vector_initialization
[INFO] [stderr] 
[INFO] [stderr] warning: slow zero-filling initialization
[INFO] [stderr]   --> src/main.rs:70:5
[INFO] [stderr]    |
[INFO] [stderr] 69 |     let mut buf: Vec<u8> = Vec::with_capacity(data_size);
[INFO] [stderr]    |                            ----------------------------- help: consider replace allocation with: `vec![0; data_size]`
[INFO] [stderr] 70 |     buf.resize(data_size, 0);
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#slow_vector_initialization
[INFO] [stderr] 
[INFO] [stderr] warning: value assigned to `total_bytes` is never read
[INFO] [stderr]   --> src/main.rs:36:13
[INFO] [stderr]    |
[INFO] [stderr] 36 |     let mut total_bytes = 0;
[INFO] [stderr]    |             ^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_assignments)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: value assigned to `upload_dur` is never read
[INFO] [stderr]   --> src/main.rs:58:13
[INFO] [stderr]    |
[INFO] [stderr] 58 |     let mut upload_dur = 0usize;
[INFO] [stderr]    |             ^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: the operation is ineffective. Consider reducing it to `(n & 0x000000ff)`
[INFO] [stderr]   --> src/main.rs:12:14
[INFO] [stderr]    |
[INFO] [stderr] 12 |     buf.push(((n & 0x000000ff) >> 0) as u8);
[INFO] [stderr]    |              ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::identity_op)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#identity_op
[INFO] [stderr] 
[INFO] [stderr] warning: casting u8 to u32 may become silently lossy if types change
[INFO] [stderr]   --> src/main.rs:19:10
[INFO] [stderr]    |
[INFO] [stderr] 19 |     n += (buf[0] as u32) << 24;
[INFO] [stderr]    |          ^^^^^^^^^^^^^^^ help: try: `u32::from(buf[0])`
[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 u32 may become silently lossy if types change
[INFO] [stderr]   --> src/main.rs:20:10
[INFO] [stderr]    |
[INFO] [stderr] 20 |     n += (buf[1] as u32) << 16;
[INFO] [stderr]    |          ^^^^^^^^^^^^^^^ help: try: `u32::from(buf[1])`
[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/main.rs:21:10
[INFO] [stderr]    |
[INFO] [stderr] 21 |     n += (buf[2] as u32) << 8;
[INFO] [stderr]    |          ^^^^^^^^^^^^^^^ help: try: `u32::from(buf[2])`
[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: the operation is ineffective. Consider reducing it to `(buf[3] as u32)`
[INFO] [stderr]   --> src/main.rs:22:10
[INFO] [stderr]    |
[INFO] [stderr] 22 |     n += (buf[3] as u32) << 0;
[INFO] [stderr]    |          ^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#identity_op
[INFO] [stderr] 
[INFO] [stderr] warning: casting u8 to u32 may become silently lossy if types change
[INFO] [stderr]   --> src/main.rs:22:10
[INFO] [stderr]    |
[INFO] [stderr] 22 |     n += (buf[3] as u32) << 0;
[INFO] [stderr]    |          ^^^^^^^^^^^^^^^ help: try: `u32::from(buf[3])`
[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: the loop variable `i` is only used to index `buf`.
[INFO] [stderr]   --> src/main.rs:28:14
[INFO] [stderr]    |
[INFO] [stderr] 28 |     for i in 0..buf.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] 28 |     for <item> in &mut buf {
[INFO] [stderr]    |         ^^^^^^    ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: slow zero-filling initialization
[INFO] [stderr]   --> src/main.rs:49:5
[INFO] [stderr]    |
[INFO] [stderr] 48 |     let mut upload_buf: Vec<u8> = Vec::with_capacity(total_bytes);
[INFO] [stderr]    |                                   ------------------------------- help: consider replace allocation with: `vec![0; total_bytes]`
[INFO] [stderr] 49 |     upload_buf.resize(total_bytes, 0);
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::slow_vector_initialization)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#slow_vector_initialization
[INFO] [stderr] 
[INFO] [stderr] warning: slow zero-filling initialization
[INFO] [stderr]   --> src/main.rs:70:5
[INFO] [stderr]    |
[INFO] [stderr] 69 |     let mut buf: Vec<u8> = Vec::with_capacity(data_size);
[INFO] [stderr]    |                            ----------------------------- help: consider replace allocation with: `vec![0; data_size]`
[INFO] [stderr] 70 |     buf.resize(data_size, 0);
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#slow_vector_initialization
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.86s
[INFO] running `"docker" "inspect" "8cf9eb819d3e8109335b45d1214846355e7c3fc54b7b5e664a07b1384d7970df"`
[INFO] running `"docker" "rm" "-f" "8cf9eb819d3e8109335b45d1214846355e7c3fc54b7b5e664a07b1384d7970df"`
[INFO] [stdout] 8cf9eb819d3e8109335b45d1214846355e7c3fc54b7b5e664a07b1384d7970df