[INFO] updating cached repository ANtlord/system_ladder
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/ANtlord/system_ladder
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/ANtlord/system_ladder" "work/ex/clippy-test-run/sources/stable/gh/ANtlord/system_ladder"`
[INFO] [stderr] Cloning into 'work/ex/clippy-test-run/sources/stable/gh/ANtlord/system_ladder'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/ANtlord/system_ladder" "work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/gh/ANtlord/system_ladder"`
[INFO] [stderr] Cloning into 'work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/gh/ANtlord/system_ladder'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] a62d11a6103840582855bd5fdd765b5ec179a3e1
[INFO] sha for GitHub repo ANtlord/system_ladder: a62d11a6103840582855bd5fdd765b5ec179a3e1
[INFO] validating manifest of ANtlord/system_ladder 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 ANtlord/system_ladder 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 ANtlord/system_ladder
[INFO] finished frobbing ANtlord/system_ladder
[INFO] frobbed toml for ANtlord/system_ladder written to work/ex/clippy-test-run/sources/stable/gh/ANtlord/system_ladder/Cargo.toml
[INFO] started frobbing ANtlord/system_ladder
[INFO] finished frobbing ANtlord/system_ladder
[INFO] frobbed toml for ANtlord/system_ladder written to work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/gh/ANtlord/system_ladder/Cargo.toml
[INFO] crate ANtlord/system_ladder 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 ANtlord/system_ladder against stable for clippy-test-run
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/clippy-test-run/worker-2/stable:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/clippy-test-run/sources/stable/gh/ANtlord/system_ladder:/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] 8e487f6e2a0731180c48ca2e68b801192a78e6285e8ca60c8a4f38ed0ba98fbd
[INFO] running `"docker" "start" "-a" "8e487f6e2a0731180c48ca2e68b801192a78e6285e8ca60c8a4f38ed0ba98fbd"`
[INFO] [stderr]     Checking system_ladder v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: unused import: `std::any::TypeId`
[INFO] [stderr]  --> src/main.rs:1:5
[INFO] [stderr]   |
[INFO] [stderr] 1 | use std::any::TypeId;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(unused_imports)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: Try not to call a closure in the expression where it is declared.
[INFO] [stderr]   --> src/main.rs:30:23
[INFO] [stderr]    |
[INFO] [stderr] 30 |               let res = (|| {
[INFO] [stderr]    |  _______________________^
[INFO] [stderr] 31 | |                 $($fbody)*
[INFO] [stderr] 32 | |             })();
[INFO] [stderr]    | |________________^
[INFO] [stderr] ...
[INFO] [stderr] 53 | /     call! {
[INFO] [stderr] 54 | |         fn callee3(a: i32, b: i32) -> i32 {
[INFO] [stderr] 55 | |             if a == 1 {
[INFO] [stderr] 56 | |                 let c = a + b;
[INFO] [stderr] ...  |
[INFO] [stderr] 62 | |         }
[INFO] [stderr] 63 | |     }
[INFO] [stderr]    | |_____- in this macro invocation
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::redundant_closure_call)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#redundant_closure_call
[INFO] [stderr] help: Try doing something like: 
[INFO] [stderr]    |
[INFO] [stderr] 30 |             let res = {
[INFO] [stderr] 31 |                 $($fbody)*
[INFO] [stderr] 32 |             };
[INFO] [stderr]    |
[INFO] [stderr] 
[INFO] [stderr] warning: returning the result of a let binding from a block. Consider returning the expression directly.
[INFO] [stderr]   --> src/main.rs:57:17
[INFO] [stderr]    |
[INFO] [stderr] 57 |                 c
[INFO] [stderr]    |                 ^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::let_and_return)] on by default
[INFO] [stderr] note: this expression can be directly returned
[INFO] [stderr]   --> src/main.rs:56:25
[INFO] [stderr]    |
[INFO] [stderr] 56 |                 let c = a + b;
[INFO] [stderr]    |                         ^^^^^
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#let_and_return
[INFO] [stderr] 
[INFO] [stderr] warning: returning the result of a let binding from a block. Consider returning the expression directly.
[INFO] [stderr]   --> src/main.rs:60:17
[INFO] [stderr]    |
[INFO] [stderr] 60 |                 d
[INFO] [stderr]    |                 ^
[INFO] [stderr]    |
[INFO] [stderr] note: this expression can be directly returned
[INFO] [stderr]   --> src/main.rs:59:25
[INFO] [stderr]    |
[INFO] [stderr] 59 |                 let d = a * b;
[INFO] [stderr]    |                         ^^^^^
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#let_and_return
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `a`
[INFO] [stderr]   --> src/main.rs:42:20
[INFO] [stderr]    |
[INFO] [stderr] 42 |         fn callee2(a: i32, b: i32) {
[INFO] [stderr]    |                    ^ help: consider using `_a` instead
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_variables)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `b`
[INFO] [stderr]   --> src/main.rs:42:28
[INFO] [stderr]    |
[INFO] [stderr] 42 |         fn callee2(a: i32, b: i32) {
[INFO] [stderr]    |                            ^ help: consider using `_b` instead
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `a`
[INFO] [stderr]   --> src/main.rs:48:25
[INFO] [stderr]    |
[INFO] [stderr] 48 |         fn callee(self, a: i32, b: i32) {
[INFO] [stderr]    |                         ^ help: consider using `_a` instead
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `b`
[INFO] [stderr]   --> src/main.rs:48:33
[INFO] [stderr]    |
[INFO] [stderr] 48 |         fn callee(self, a: i32, b: i32) {
[INFO] [stderr]    |                                 ^ help: consider using `_b` instead
[INFO] [stderr] 
[INFO] [stderr] warning: type `point` should have a camel case name such as `Point`
[INFO] [stderr]   --> src/main.rs:38:1
[INFO] [stderr]    |
[INFO] [stderr] 38 | struct point(i32, i32);
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(non_camel_case_types)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::any::TypeId`
[INFO] [stderr]  --> src/main.rs:1:5
[INFO] [stderr]   |
[INFO] [stderr] 1 | use std::any::TypeId;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(unused_imports)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: Try not to call a closure in the expression where it is declared.
[INFO] [stderr]   --> src/main.rs:30:23
[INFO] [stderr]    |
[INFO] [stderr] 30 |               let res = (|| {
[INFO] [stderr]    |  _______________________^
[INFO] [stderr] 31 | |                 $($fbody)*
[INFO] [stderr] 32 | |             })();
[INFO] [stderr]    | |________________^
[INFO] [stderr] ...
[INFO] [stderr] 53 | /     call! {
[INFO] [stderr] 54 | |         fn callee3(a: i32, b: i32) -> i32 {
[INFO] [stderr] 55 | |             if a == 1 {
[INFO] [stderr] 56 | |                 let c = a + b;
[INFO] [stderr] ...  |
[INFO] [stderr] 62 | |         }
[INFO] [stderr] 63 | |     }
[INFO] [stderr]    | |_____- in this macro invocation
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::redundant_closure_call)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#redundant_closure_call
[INFO] [stderr] help: Try doing something like: 
[INFO] [stderr]    |
[INFO] [stderr] 30 |             let res = {
[INFO] [stderr] 31 |                 $($fbody)*
[INFO] [stderr] 32 |             };
[INFO] [stderr]    |
[INFO] [stderr] 
[INFO] [stderr] warning: returning the result of a let binding from a block. Consider returning the expression directly.
[INFO] [stderr]   --> src/main.rs:57:17
[INFO] [stderr]    |
[INFO] [stderr] 57 |                 c
[INFO] [stderr]    |                 ^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::let_and_return)] on by default
[INFO] [stderr] note: this expression can be directly returned
[INFO] [stderr]   --> src/main.rs:56:25
[INFO] [stderr]    |
[INFO] [stderr] 56 |                 let c = a + b;
[INFO] [stderr]    |                         ^^^^^
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#let_and_return
[INFO] [stderr] 
[INFO] [stderr] warning: returning the result of a let binding from a block. Consider returning the expression directly.
[INFO] [stderr]   --> src/main.rs:60:17
[INFO] [stderr]    |
[INFO] [stderr] 60 |                 d
[INFO] [stderr]    |                 ^
[INFO] [stderr]    |
[INFO] [stderr] note: this expression can be directly returned
[INFO] [stderr]   --> src/main.rs:59:25
[INFO] [stderr]    |
[INFO] [stderr] 59 |                 let d = a * b;
[INFO] [stderr]    |                         ^^^^^
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#let_and_return
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `a`
[INFO] [stderr]   --> src/main.rs:42:20
[INFO] [stderr]    |
[INFO] [stderr] 42 |         fn callee2(a: i32, b: i32) {
[INFO] [stderr]    |                    ^ help: consider using `_a` instead
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_variables)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `b`
[INFO] [stderr]   --> src/main.rs:42:28
[INFO] [stderr]    |
[INFO] [stderr] 42 |         fn callee2(a: i32, b: i32) {
[INFO] [stderr]    |                            ^ help: consider using `_b` instead
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `a`
[INFO] [stderr]   --> src/main.rs:48:25
[INFO] [stderr]    |
[INFO] [stderr] 48 |         fn callee(self, a: i32, b: i32) {
[INFO] [stderr]    |                         ^ help: consider using `_a` instead
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `b`
[INFO] [stderr]   --> src/main.rs:48:33
[INFO] [stderr]    |
[INFO] [stderr] 48 |         fn callee(self, a: i32, b: i32) {
[INFO] [stderr]    |                                 ^ help: consider using `_b` instead
[INFO] [stderr] 
[INFO] [stderr] warning: type `point` should have a camel case name such as `Point`
[INFO] [stderr]   --> src/main.rs:38:1
[INFO] [stderr]    |
[INFO] [stderr] 38 | struct point(i32, i32);
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(non_camel_case_types)] on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.75s
[INFO] running `"docker" "inspect" "8e487f6e2a0731180c48ca2e68b801192a78e6285e8ca60c8a4f38ed0ba98fbd"`
[INFO] running `"docker" "rm" "-f" "8e487f6e2a0731180c48ca2e68b801192a78e6285e8ca60c8a4f38ed0ba98fbd"`
[INFO] [stdout] 8e487f6e2a0731180c48ca2e68b801192a78e6285e8ca60c8a4f38ed0ba98fbd