[INFO] updating cached repository henryroyal/cli-gcd
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/henryroyal/cli-gcd
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/henryroyal/cli-gcd" "work/ex/clippy-test-run/sources/stable/gh/henryroyal/cli-gcd"`
[INFO] [stderr] Cloning into 'work/ex/clippy-test-run/sources/stable/gh/henryroyal/cli-gcd'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/henryroyal/cli-gcd" "work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/gh/henryroyal/cli-gcd"`
[INFO] [stderr] Cloning into 'work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/gh/henryroyal/cli-gcd'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 5ac4be847ad402d554d4d5ca121b0ba2da37260b
[INFO] sha for GitHub repo henryroyal/cli-gcd: 5ac4be847ad402d554d4d5ca121b0ba2da37260b
[INFO] validating manifest of henryroyal/cli-gcd 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 henryroyal/cli-gcd 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 henryroyal/cli-gcd
[INFO] finished frobbing henryroyal/cli-gcd
[INFO] frobbed toml for henryroyal/cli-gcd written to work/ex/clippy-test-run/sources/stable/gh/henryroyal/cli-gcd/Cargo.toml
[INFO] started frobbing henryroyal/cli-gcd
[INFO] finished frobbing henryroyal/cli-gcd
[INFO] frobbed toml for henryroyal/cli-gcd written to work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/gh/henryroyal/cli-gcd/Cargo.toml
[INFO] crate henryroyal/cli-gcd 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 henryroyal/cli-gcd 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/henryroyal/cli-gcd:/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] d0e7a2d20fd73ca3fc3922614d11e1ad8320b2973b8d549ff68cddca360b13d6
[INFO] running `"docker" "start" "-a" "d0e7a2d20fd73ca3fc3922614d11e1ad8320b2973b8d549ff68cddca360b13d6"`
[INFO] [stderr]     Checking gcd v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: literal with an empty format string
[INFO] [stderr]  --> src/main.rs:3:24
[INFO] [stderr]   |
[INFO] [stderr] 3 |         println!("{}", 1);
[INFO] [stderr]   |                        ^
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(clippy::print_literal)] on by default
[INFO] [stderr]   = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#print_literal
[INFO] [stderr] 
[INFO] [stderr] warning: literal with an empty format string
[INFO] [stderr]  --> src/main.rs:3:24
[INFO] [stderr]   |
[INFO] [stderr] 3 |         println!("{}", 1);
[INFO] [stderr]   |                        ^
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(clippy::print_literal)] on by default
[INFO] [stderr]   = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#print_literal
[INFO] [stderr] 
[INFO] [stderr] warning: unneeded return statement
[INFO] [stderr]   --> src/main.rs:50:5
[INFO] [stderr]    |
[INFO] [stderr] 50 |     return input;
[INFO] [stderr]    |     ^^^^^^^^^^^^^ help: remove `return` as shown: `input`
[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: variable does not need to be mutable
[INFO] [stderr]   --> src/main.rs:37:9
[INFO] [stderr]    |
[INFO] [stderr] 37 |     let mut split = buffer.split_whitespace();
[INFO] [stderr]    |         ----^^^^^
[INFO] [stderr]    |         |
[INFO] [stderr]    |         help: remove this `mut`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_mut)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unneeded return statement
[INFO] [stderr]   --> src/main.rs:50:5
[INFO] [stderr]    |
[INFO] [stderr] 50 |     return input;
[INFO] [stderr]    |     ^^^^^^^^^^^^^ help: remove `return` as shown: `input`
[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: unused `std::result::Result` that must be used
[INFO] [stderr]   --> src/main.rs:34:5
[INFO] [stderr]    |
[INFO] [stderr] 34 |     stdin.read_line(&mut buffer);
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_must_use)] on by default
[INFO] [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/main.rs:37:9
[INFO] [stderr]    |
[INFO] [stderr] 37 |     let mut split = buffer.split_whitespace();
[INFO] [stderr]    |         ----^^^^^
[INFO] [stderr]    |         |
[INFO] [stderr]    |         help: remove this `mut`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_mut)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]   --> src/main.rs:34:5
[INFO] [stderr]    |
[INFO] [stderr] 34 |     stdin.read_line(&mut buffer);
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_must_use)] on by default
[INFO] [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.41s
[INFO] running `"docker" "inspect" "d0e7a2d20fd73ca3fc3922614d11e1ad8320b2973b8d549ff68cddca360b13d6"`
[INFO] running `"docker" "rm" "-f" "d0e7a2d20fd73ca3fc3922614d11e1ad8320b2973b8d549ff68cddca360b13d6"`
[INFO] [stdout] d0e7a2d20fd73ca3fc3922614d11e1ad8320b2973b8d549ff68cddca360b13d6