[INFO] updating cached repository Itanq/RustLight
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/Itanq/RustLight
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/Itanq/RustLight" "work/ex/clippy-test-run/sources/stable/gh/Itanq/RustLight"`
[INFO] [stderr] Cloning into 'work/ex/clippy-test-run/sources/stable/gh/Itanq/RustLight'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/Itanq/RustLight" "work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/gh/Itanq/RustLight"`
[INFO] [stderr] Cloning into 'work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/gh/Itanq/RustLight'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 372b1419beeb8ad99ebe17281394a1d664a7258f
[INFO] sha for GitHub repo Itanq/RustLight: 372b1419beeb8ad99ebe17281394a1d664a7258f
[INFO] validating manifest of Itanq/RustLight 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 Itanq/RustLight 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 Itanq/RustLight
[INFO] finished frobbing Itanq/RustLight
[INFO] frobbed toml for Itanq/RustLight written to work/ex/clippy-test-run/sources/stable/gh/Itanq/RustLight/Cargo.toml
[INFO] started frobbing Itanq/RustLight
[INFO] finished frobbing Itanq/RustLight
[INFO] frobbed toml for Itanq/RustLight written to work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/gh/Itanq/RustLight/Cargo.toml
[INFO] crate Itanq/RustLight 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 Itanq/RustLight against stable for clippy-test-run
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/clippy-test-run/worker-1/stable:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/clippy-test-run/sources/stable/gh/Itanq/RustLight:/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] b4a099827bbf4d05b68c2606d0ba4eab90139826b74a63488909c9caaea7e0c8
[INFO] running `"docker" "start" "-a" "b4a099827bbf4d05b68c2606d0ba4eab90139826b74a63488909c9caaea7e0c8"`
[INFO] [stderr]     Checking math v0.0.2
[INFO] [stderr]     Checking image v0.20.1
[INFO] [stderr]     Checking DrawLight v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: crate `DrawLight` should have a snake case name such as `draw_light`
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(non_snake_case)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: manual implementation of an assign operation
[INFO] [stderr]   --> src/light.rs:15:9
[INFO] [stderr]    |
[INFO] [stderr] 15 |         sum = sum + trace(x, y, a.cos(), a.sin());
[INFO] [stderr]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: replace it with: `sum += trace(x, y, a.cos(), a.sin())`
[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/light.rs:51:9
[INFO] [stderr]    |
[INFO] [stderr] 51 |         t = t + r.sd;
[INFO] [stderr]    |         ^^^^^^^^^^^^ help: replace it with: `t += r.sd`
[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: function is never used: `draw_light`
[INFO] [stderr]  --> src/example.rs:4:1
[INFO] [stderr]   |
[INFO] [stderr] 4 | fn draw_light(path: &str, width: u32, height: u32) {
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(dead_code)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: crate `DrawLight` should have a snake case name such as `draw_light`
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(non_snake_case)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: manual implementation of an assign operation
[INFO] [stderr]   --> src/light.rs:15:9
[INFO] [stderr]    |
[INFO] [stderr] 15 |         sum = sum + trace(x, y, a.cos(), a.sin());
[INFO] [stderr]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: replace it with: `sum += trace(x, y, a.cos(), a.sin())`
[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/light.rs:51:9
[INFO] [stderr]    |
[INFO] [stderr] 51 |         t = t + r.sd;
[INFO] [stderr]    |         ^^^^^^^^^^^^ help: replace it with: `t += r.sd`
[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: crate `DrawLight` should have a snake case name such as `draw_light`
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(non_snake_case)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: crate `DrawLight` should have a snake case name such as `draw_light`
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(non_snake_case)] on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 15.34s
[INFO] running `"docker" "inspect" "b4a099827bbf4d05b68c2606d0ba4eab90139826b74a63488909c9caaea7e0c8"`
[INFO] running `"docker" "rm" "-f" "b4a099827bbf4d05b68c2606d0ba4eab90139826b74a63488909c9caaea7e0c8"`
[INFO] [stdout] b4a099827bbf4d05b68c2606d0ba4eab90139826b74a63488909c9caaea7e0c8