[INFO] updating cached repository JRegimbal/luhn-algorithm
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/JRegimbal/luhn-algorithm
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/JRegimbal/luhn-algorithm" "work/ex/clippy-test-run/sources/stable/gh/JRegimbal/luhn-algorithm"`
[INFO] [stderr] Cloning into 'work/ex/clippy-test-run/sources/stable/gh/JRegimbal/luhn-algorithm'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/JRegimbal/luhn-algorithm" "work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/gh/JRegimbal/luhn-algorithm"`
[INFO] [stderr] Cloning into 'work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/gh/JRegimbal/luhn-algorithm'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 9ec7c175e18f72c9a8966794afdfe2d1792112d8
[INFO] sha for GitHub repo JRegimbal/luhn-algorithm: 9ec7c175e18f72c9a8966794afdfe2d1792112d8
[INFO] validating manifest of JRegimbal/luhn-algorithm 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 JRegimbal/luhn-algorithm 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 JRegimbal/luhn-algorithm
[INFO] finished frobbing JRegimbal/luhn-algorithm
[INFO] frobbed toml for JRegimbal/luhn-algorithm written to work/ex/clippy-test-run/sources/stable/gh/JRegimbal/luhn-algorithm/Cargo.toml
[INFO] started frobbing JRegimbal/luhn-algorithm
[INFO] finished frobbing JRegimbal/luhn-algorithm
[INFO] frobbed toml for JRegimbal/luhn-algorithm written to work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/gh/JRegimbal/luhn-algorithm/Cargo.toml
[INFO] crate JRegimbal/luhn-algorithm 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 JRegimbal/luhn-algorithm 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-2/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/JRegimbal/luhn-algorithm:/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] 208111c3bd26edbc216010dec206145a32f75d87df22ffdf0c25e7f296ad64bb
[INFO] running `"docker" "start" "-a" "208111c3bd26edbc216010dec206145a32f75d87df22ffdf0c25e7f296ad64bb"`
[INFO] [stderr] warning: path `/opt/crater/workdir/src/luhn.rs` was erroneously implicitly accepted for library `luhn`,
[INFO] [stderr] please rename the file to `src/lib.rs` or set lib.path in Cargo.toml
[INFO] [stderr]     Checking luhn_check v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: writing `&String` instead of `&str` involves a new object where a slice will do.
[INFO] [stderr]  --> src/luhn.rs:1:32
[INFO] [stderr]   |
[INFO] [stderr] 1 | pub fn luhn_valid_n(raw_input: &String, base: u32) -> bool {
[INFO] [stderr]   |                                ^^^^^^^ help: change this to: `&str`
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(clippy::ptr_arg)] on by default
[INFO] [stderr]   = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#ptr_arg
[INFO] [stderr] 
[INFO] [stderr] warning: manual implementation of an assign operation
[INFO] [stderr]   --> src/luhn.rs:18:13
[INFO] [stderr]    |
[INFO] [stderr] 18 |             value = value * 2;
[INFO] [stderr]    |             ^^^^^^^^^^^^^^^^^ help: replace it with: `value *= 2`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::assign_op_pattern)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#assign_op_pattern
[INFO] [stderr] 
[INFO] [stderr] warning: manual implementation of an assign operation
[INFO] [stderr]   --> src/luhn.rs:21:9
[INFO] [stderr]    |
[INFO] [stderr] 21 |         sum = sum + value;
[INFO] [stderr]    |         ^^^^^^^^^^^^^^^^^ help: replace it with: `sum += value`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#assign_op_pattern
[INFO] [stderr] 
[INFO] [stderr] warning: manual implementation of an assign operation
[INFO] [stderr]   --> src/luhn.rs:22:9
[INFO] [stderr]    |
[INFO] [stderr] 22 |         double = double ^ true;
[INFO] [stderr]    |         ^^^^^^^^^^^^^^^^^^^^^^ help: replace it with: `double ^= true`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#assign_op_pattern
[INFO] [stderr] 
[INFO] [stderr] warning: writing `&String` instead of `&str` involves a new object where a slice will do.
[INFO] [stderr]   --> src/luhn.rs:27:30
[INFO] [stderr]    |
[INFO] [stderr] 27 | pub fn luhn_valid(raw_input: &String) -> bool {
[INFO] [stderr]    |                              ^^^^^^^ help: change this to: `&str`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#ptr_arg
[INFO] [stderr] 
[INFO] [stderr] warning: writing `&String` instead of `&str` involves a new object where a slice will do.
[INFO] [stderr]  --> src/luhn.rs:1:32
[INFO] [stderr]   |
[INFO] [stderr] 1 | pub fn luhn_valid_n(raw_input: &String, base: u32) -> bool {
[INFO] [stderr]   |                                ^^^^^^^ help: change this to: `&str`
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(clippy::ptr_arg)] on by default
[INFO] [stderr]   = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#ptr_arg
[INFO] [stderr] 
[INFO] [stderr] warning: manual implementation of an assign operation
[INFO] [stderr]   --> src/luhn.rs:18:13
[INFO] [stderr]    |
[INFO] [stderr] 18 |             value = value * 2;
[INFO] [stderr]    |             ^^^^^^^^^^^^^^^^^ help: replace it with: `value *= 2`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::assign_op_pattern)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#assign_op_pattern
[INFO] [stderr] 
[INFO] [stderr] warning: manual implementation of an assign operation
[INFO] [stderr]   --> src/luhn.rs:21:9
[INFO] [stderr]    |
[INFO] [stderr] 21 |         sum = sum + value;
[INFO] [stderr]    |         ^^^^^^^^^^^^^^^^^ help: replace it with: `sum += value`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#assign_op_pattern
[INFO] [stderr] 
[INFO] [stderr] warning: manual implementation of an assign operation
[INFO] [stderr]   --> src/luhn.rs:22:9
[INFO] [stderr]    |
[INFO] [stderr] 22 |         double = double ^ true;
[INFO] [stderr]    |         ^^^^^^^^^^^^^^^^^^^^^^ help: replace it with: `double ^= true`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#assign_op_pattern
[INFO] [stderr] 
[INFO] [stderr] warning: writing `&String` instead of `&str` involves a new object where a slice will do.
[INFO] [stderr]   --> src/luhn.rs:27:30
[INFO] [stderr]    |
[INFO] [stderr] 27 | pub fn luhn_valid(raw_input: &String) -> bool {
[INFO] [stderr]    |                              ^^^^^^^ help: change this to: `&str`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#ptr_arg
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `luhn_valid`
[INFO] [stderr]   --> src/luhn.rs:27:1
[INFO] [stderr]    |
[INFO] [stderr] 27 | pub fn luhn_valid(raw_input: &String) -> bool {
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(dead_code)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: writing `&String` instead of `&str` involves a new object where a slice will do.
[INFO] [stderr]  --> src/luhn.rs:1:32
[INFO] [stderr]   |
[INFO] [stderr] 1 | pub fn luhn_valid_n(raw_input: &String, base: u32) -> bool {
[INFO] [stderr]   |                                ^^^^^^^ help: change this to: `&str`
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(clippy::ptr_arg)] on by default
[INFO] [stderr]   = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#ptr_arg
[INFO] [stderr] 
[INFO] [stderr] warning: manual implementation of an assign operation
[INFO] [stderr]   --> src/luhn.rs:18:13
[INFO] [stderr]    |
[INFO] [stderr] 18 |             value = value * 2;
[INFO] [stderr]    |             ^^^^^^^^^^^^^^^^^ help: replace it with: `value *= 2`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::assign_op_pattern)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#assign_op_pattern
[INFO] [stderr] 
[INFO] [stderr] warning: manual implementation of an assign operation
[INFO] [stderr]   --> src/luhn.rs:21:9
[INFO] [stderr]    |
[INFO] [stderr] 21 |         sum = sum + value;
[INFO] [stderr]    |         ^^^^^^^^^^^^^^^^^ help: replace it with: `sum += value`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#assign_op_pattern
[INFO] [stderr] 
[INFO] [stderr] warning: manual implementation of an assign operation
[INFO] [stderr]   --> src/luhn.rs:22:9
[INFO] [stderr]    |
[INFO] [stderr] 22 |         double = double ^ true;
[INFO] [stderr]    |         ^^^^^^^^^^^^^^^^^^^^^^ help: replace it with: `double ^= true`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#assign_op_pattern
[INFO] [stderr] 
[INFO] [stderr] warning: writing `&String` instead of `&str` involves a new object where a slice will do.
[INFO] [stderr]   --> src/luhn.rs:27:30
[INFO] [stderr]    |
[INFO] [stderr] 27 | pub fn luhn_valid(raw_input: &String) -> bool {
[INFO] [stderr]    |                              ^^^^^^^ help: change this to: `&str`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#ptr_arg
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `luhn_valid`
[INFO] [stderr]   --> src/luhn.rs:27:1
[INFO] [stderr]    |
[INFO] [stderr] 27 | pub fn luhn_valid(raw_input: &String) -> bool {
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(dead_code)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: writing `&String` instead of `&str` involves a new object where a slice will do.
[INFO] [stderr]  --> src/luhn.rs:1:32
[INFO] [stderr]   |
[INFO] [stderr] 1 | pub fn luhn_valid_n(raw_input: &String, base: u32) -> bool {
[INFO] [stderr]   |                                ^^^^^^^ help: change this to: `&str`
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(clippy::ptr_arg)] on by default
[INFO] [stderr]   = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#ptr_arg
[INFO] [stderr] 
[INFO] [stderr] warning: manual implementation of an assign operation
[INFO] [stderr]   --> src/luhn.rs:18:13
[INFO] [stderr]    |
[INFO] [stderr] 18 |             value = value * 2;
[INFO] [stderr]    |             ^^^^^^^^^^^^^^^^^ help: replace it with: `value *= 2`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::assign_op_pattern)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#assign_op_pattern
[INFO] [stderr] 
[INFO] [stderr] warning: manual implementation of an assign operation
[INFO] [stderr]   --> src/luhn.rs:21:9
[INFO] [stderr]    |
[INFO] [stderr] 21 |         sum = sum + value;
[INFO] [stderr]    |         ^^^^^^^^^^^^^^^^^ help: replace it with: `sum += value`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#assign_op_pattern
[INFO] [stderr] 
[INFO] [stderr] warning: manual implementation of an assign operation
[INFO] [stderr]   --> src/luhn.rs:22:9
[INFO] [stderr]    |
[INFO] [stderr] 22 |         double = double ^ true;
[INFO] [stderr]    |         ^^^^^^^^^^^^^^^^^^^^^^ help: replace it with: `double ^= true`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#assign_op_pattern
[INFO] [stderr] 
[INFO] [stderr] warning: writing `&String` instead of `&str` involves a new object where a slice will do.
[INFO] [stderr]   --> src/luhn.rs:27:30
[INFO] [stderr]    |
[INFO] [stderr] 27 | pub fn luhn_valid(raw_input: &String) -> bool {
[INFO] [stderr]    |                              ^^^^^^^ help: change this to: `&str`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#ptr_arg
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.68s
[INFO] running `"docker" "inspect" "208111c3bd26edbc216010dec206145a32f75d87df22ffdf0c25e7f296ad64bb"`
[INFO] running `"docker" "rm" "-f" "208111c3bd26edbc216010dec206145a32f75d87df22ffdf0c25e7f296ad64bb"`
[INFO] [stdout] 208111c3bd26edbc216010dec206145a32f75d87df22ffdf0c25e7f296ad64bb