[INFO] updating cached repository Askaholic/rust-intro
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/Askaholic/rust-intro
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/Askaholic/rust-intro" "work/ex/clippy-test-run/sources/stable/gh/Askaholic/rust-intro"`
[INFO] [stderr] Cloning into 'work/ex/clippy-test-run/sources/stable/gh/Askaholic/rust-intro'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/Askaholic/rust-intro" "work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/gh/Askaholic/rust-intro"`
[INFO] [stderr] Cloning into 'work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/gh/Askaholic/rust-intro'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 863aaad62137c038592c5392e56e8b015f301c74
[INFO] sha for GitHub repo Askaholic/rust-intro: 863aaad62137c038592c5392e56e8b015f301c74
[INFO] validating manifest of Askaholic/rust-intro 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 Askaholic/rust-intro 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 Askaholic/rust-intro
[INFO] finished frobbing Askaholic/rust-intro
[INFO] frobbed toml for Askaholic/rust-intro written to work/ex/clippy-test-run/sources/stable/gh/Askaholic/rust-intro/Cargo.toml
[INFO] started frobbing Askaholic/rust-intro
[INFO] finished frobbing Askaholic/rust-intro
[INFO] frobbed toml for Askaholic/rust-intro written to work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/gh/Askaholic/rust-intro/Cargo.toml
[INFO] crate Askaholic/rust-intro 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 Askaholic/rust-intro 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-4/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/Askaholic/rust-intro:/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] 3ec4ee2d5d36e29757f29a3b1a96f21835a85533895bc04422ede1e12485d2cf
[INFO] running `"docker" "start" "-a" "3ec4ee2d5d36e29757f29a3b1a96f21835a85533895bc04422ede1e12485d2cf"`
[INFO] [stderr]     Checking hello_world v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: unneeded return statement
[INFO] [stderr]   --> src/guess.rs:50:5
[INFO] [stderr]    |
[INFO] [stderr] 50 |     return guess.trim().parse::<i64>();
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove `return` as shown: `guess.trim().parse::<i64>()`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::needless_return)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_return
[INFO] [stderr] 
[INFO] [stderr] warning: unneeded return statement
[INFO] [stderr]   --> src/guess.rs:50:5
[INFO] [stderr]    |
[INFO] [stderr] 50 |     return guess.trim().parse::<i64>();
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove `return` as shown: `guess.trim().parse::<i64>()`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::needless_return)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_return
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `guess`
[INFO] [stderr]   --> src/guess.rs:14:1
[INFO] [stderr]    |
[INFO] [stderr] 14 | pub fn guess() {
[INFO] [stderr]    | ^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(dead_code)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `get_guess`
[INFO] [stderr]   --> src/guess.rs:41:1
[INFO] [stderr]    |
[INFO] [stderr] 41 | fn get_guess() -> Result<i64, std::num::ParseIntError> {
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] error: handle written amount returned or use `Write::write_all` instead
[INFO] [stderr]   --> src/base64.rs:18:5
[INFO] [stderr]    |
[INFO] [stderr] 18 |     out.write(&[b'\n']).expect("Failed to write to stdout");
[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/base64.rs:41:9
[INFO] [stderr]    |
[INFO] [stderr] 41 |         output_stream.write(&output.as_bytes()).expect("Failed to write to stdout");
[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] warning: an inclusive range would be more readable
[INFO] [stderr]   --> src/base64.rs:50:30
[INFO] [stderr]    |
[INFO] [stderr] 50 |         *output += &ALPHABET[ind..ind+1];
[INFO] [stderr]    |                              ^^^^^^^^^^ help: use: `ind..=ind`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::range_plus_one)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#range_plus_one
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to 2 previous errors
[INFO] [stderr] 
[INFO] [stderr] error: Could not compile `hello_world`.
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] warning: function is never used: `guess`
[INFO] [stderr]   --> src/guess.rs:14:1
[INFO] [stderr]    |
[INFO] [stderr] 14 | pub fn guess() {
[INFO] [stderr]    | ^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(dead_code)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `get_guess`
[INFO] [stderr]   --> src/guess.rs:41:1
[INFO] [stderr]    |
[INFO] [stderr] 41 | fn get_guess() -> Result<i64, std::num::ParseIntError> {
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] error: handle written amount returned or use `Write::write_all` instead
[INFO] [stderr]   --> src/base64.rs:18:5
[INFO] [stderr]    |
[INFO] [stderr] 18 |     out.write(&[b'\n']).expect("Failed to write to stdout");
[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/base64.rs:41:9
[INFO] [stderr]    |
[INFO] [stderr] 41 |         output_stream.write(&output.as_bytes()).expect("Failed to write to stdout");
[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] warning: an inclusive range would be more readable
[INFO] [stderr]   --> src/base64.rs:50:30
[INFO] [stderr]    |
[INFO] [stderr] 50 |         *output += &ALPHABET[ind..ind+1];
[INFO] [stderr]    |                              ^^^^^^^^^^ help: use: `ind..=ind`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::range_plus_one)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#range_plus_one
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to 2 previous errors
[INFO] [stderr] 
[INFO] [stderr] error: Could not compile `hello_world`.
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `"docker" "inspect" "3ec4ee2d5d36e29757f29a3b1a96f21835a85533895bc04422ede1e12485d2cf"`
[INFO] running `"docker" "rm" "-f" "3ec4ee2d5d36e29757f29a3b1a96f21835a85533895bc04422ede1e12485d2cf"`
[INFO] [stdout] 3ec4ee2d5d36e29757f29a3b1a96f21835a85533895bc04422ede1e12485d2cf