[INFO] crate chariot_io_tools 0.1.4 is already in cache
[INFO] extracting crate chariot_io_tools 0.1.4 into work/ex/clippy-test-run/sources/stable/reg/chariot_io_tools/0.1.4
[INFO] extracting crate chariot_io_tools 0.1.4 into work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/reg/chariot_io_tools/0.1.4
[INFO] validating manifest of chariot_io_tools-0.1.4 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 chariot_io_tools-0.1.4 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 chariot_io_tools-0.1.4
[INFO] finished frobbing chariot_io_tools-0.1.4
[INFO] frobbed toml for chariot_io_tools-0.1.4 written to work/ex/clippy-test-run/sources/stable/reg/chariot_io_tools/0.1.4/Cargo.toml
[INFO] started frobbing chariot_io_tools-0.1.4
[INFO] finished frobbing chariot_io_tools-0.1.4
[INFO] frobbed toml for chariot_io_tools-0.1.4 written to work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/reg/chariot_io_tools/0.1.4/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 chariot_io_tools-0.1.4 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/chariot_io_tools/0.1.4:/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] 1813a0aad8663d2f76352d4bbd89e72a5ac856cbee653e5ec239a8e0094aa732
[INFO] running `"docker" "start" "-a" "1813a0aad8663d2f76352d4bbd89e72a5ac856cbee653e5ec239a8e0094aa732"`
[INFO] [stderr]     Checking chariot_io_tools v0.1.4 (/opt/crater/workdir)
[INFO] [stderr] warning: the loop variable `i` is used to index `buffer`
[INFO] [stderr]    --> src/lib.rs:137:18
[INFO] [stderr]     |
[INFO] [stderr] 137 |         for i in 0..buffer.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] 137 |         for (i, <item>) in buffer.iter().enumerate() {
[INFO] [stderr]     |             ^^^^^^^^^^^    ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: the loop variable `i` is used to index `buffer`
[INFO] [stderr]    --> src/lib.rs:137:18
[INFO] [stderr]     |
[INFO] [stderr] 137 |         for i in 0..buffer.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] 137 |         for (i, <item>) in buffer.iter().enumerate() {
[INFO] [stderr]     |             ^^^^^^^^^^^    ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: calling `as_bytes()` on a string literal
[INFO] [stderr]    --> src/lib.rs:201:42
[INFO] [stderr]     |
[INFO] [stderr] 201 |         let mut cursor = io::Cursor::new("test".as_bytes());
[INFO] [stderr]     |                                          ^^^^^^^^^^^^^^^^^ help: consider using a byte string literal instead: `b"test"`
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(clippy::string_lit_as_bytes)] on by default
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#string_lit_as_bytes
[INFO] [stderr] 
[INFO] [stderr] warning: casting character literal to u8. `char`s are 4 bytes wide in rust, so casting to u8 truncates them
[INFO] [stderr]    --> src/lib.rs:202:20
[INFO] [stderr]     |
[INFO] [stderr] 202 |         assert_eq!('t' as u8, ReadExt::read_u8(&mut cursor).unwrap());
[INFO] [stderr]     |                    ^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(clippy::char_lit_as_u8)] on by default
[INFO] [stderr]     = help: Consider using a byte literal instead:
[INFO] [stderr]             b't'
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#char_lit_as_u8
[INFO] [stderr] 
[INFO] [stderr] warning: casting character literal to u8. `char`s are 4 bytes wide in rust, so casting to u8 truncates them
[INFO] [stderr]    --> src/lib.rs:203:20
[INFO] [stderr]     |
[INFO] [stderr] 203 |         assert_eq!('e' as u8, ReadExt::read_u8(&mut cursor).unwrap());
[INFO] [stderr]     |                    ^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = help: Consider using a byte literal instead:
[INFO] [stderr]             b'e'
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#char_lit_as_u8
[INFO] [stderr] 
[INFO] [stderr] warning: casting character literal to u8. `char`s are 4 bytes wide in rust, so casting to u8 truncates them
[INFO] [stderr]    --> src/lib.rs:204:20
[INFO] [stderr]     |
[INFO] [stderr] 204 |         assert_eq!('s' as u8, ReadExt::read_u8(&mut cursor).unwrap());
[INFO] [stderr]     |                    ^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = help: Consider using a byte literal instead:
[INFO] [stderr]             b's'
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#char_lit_as_u8
[INFO] [stderr] 
[INFO] [stderr] warning: casting character literal to u8. `char`s are 4 bytes wide in rust, so casting to u8 truncates them
[INFO] [stderr]    --> src/lib.rs:205:20
[INFO] [stderr]     |
[INFO] [stderr] 205 |         assert_eq!('t' as u8, ReadExt::read_u8(&mut cursor).unwrap());
[INFO] [stderr]     |                    ^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = help: Consider using a byte literal instead:
[INFO] [stderr]             b't'
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#char_lit_as_u8
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.94s
[INFO] running `"docker" "inspect" "1813a0aad8663d2f76352d4bbd89e72a5ac856cbee653e5ec239a8e0094aa732"`
[INFO] running `"docker" "rm" "-f" "1813a0aad8663d2f76352d4bbd89e72a5ac856cbee653e5ec239a8e0094aa732"`
[INFO] [stdout] 1813a0aad8663d2f76352d4bbd89e72a5ac856cbee653e5ec239a8e0094aa732