[INFO] updating cached repository AspenJames/rust_fahrenheit_to_celsius
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/AspenJames/rust_fahrenheit_to_celsius
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/AspenJames/rust_fahrenheit_to_celsius" "work/ex/clippy-test-run/sources/stable/gh/AspenJames/rust_fahrenheit_to_celsius"`
[INFO] [stderr] Cloning into 'work/ex/clippy-test-run/sources/stable/gh/AspenJames/rust_fahrenheit_to_celsius'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/AspenJames/rust_fahrenheit_to_celsius" "work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/gh/AspenJames/rust_fahrenheit_to_celsius"`
[INFO] [stderr] Cloning into 'work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/gh/AspenJames/rust_fahrenheit_to_celsius'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 7ae8118678afb5eb17165d105a831b2e04bab048
[INFO] sha for GitHub repo AspenJames/rust_fahrenheit_to_celsius: 7ae8118678afb5eb17165d105a831b2e04bab048
[INFO] validating manifest of AspenJames/rust_fahrenheit_to_celsius 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 AspenJames/rust_fahrenheit_to_celsius 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 AspenJames/rust_fahrenheit_to_celsius
[INFO] finished frobbing AspenJames/rust_fahrenheit_to_celsius
[INFO] frobbed toml for AspenJames/rust_fahrenheit_to_celsius written to work/ex/clippy-test-run/sources/stable/gh/AspenJames/rust_fahrenheit_to_celsius/Cargo.toml
[INFO] started frobbing AspenJames/rust_fahrenheit_to_celsius
[INFO] finished frobbing AspenJames/rust_fahrenheit_to_celsius
[INFO] frobbed toml for AspenJames/rust_fahrenheit_to_celsius written to work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/gh/AspenJames/rust_fahrenheit_to_celsius/Cargo.toml
[INFO] crate AspenJames/rust_fahrenheit_to_celsius 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 AspenJames/rust_fahrenheit_to_celsius 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-5/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/AspenJames/rust_fahrenheit_to_celsius:/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] b7a89a12edaf3909a91e38b0aa31e1ae3dd5857e84d3da975e5cd7b0df842bfa
[INFO] running `"docker" "start" "-a" "b7a89a12edaf3909a91e38b0aa31e1ae3dd5857e84d3da975e5cd7b0df842bfa"`
[INFO] [stderr]     Checking rust_fahrenheit_to_celsius v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: this argument is passed by reference, but would be more efficient if passed by value
[INFO] [stderr]   --> src/main.rs:31:23
[INFO] [stderr]    |
[INFO] [stderr] 31 | fn convert_temp(temp: &f64) -> f64 {
[INFO] [stderr]    |                       ^^^^ help: consider passing by value instead: `f64`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::trivially_copy_pass_by_ref)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#trivially_copy_pass_by_ref
[INFO] [stderr] 
[INFO] [stderr] warning: this argument is passed by reference, but would be more efficient if passed by value
[INFO] [stderr]   --> src/main.rs:31:23
[INFO] [stderr]    |
[INFO] [stderr] 31 | fn convert_temp(temp: &f64) -> f64 {
[INFO] [stderr]    |                       ^^^^ help: consider passing by value instead: `f64`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::trivially_copy_pass_by_ref)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#trivially_copy_pass_by_ref
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.56s
[INFO] running `"docker" "inspect" "b7a89a12edaf3909a91e38b0aa31e1ae3dd5857e84d3da975e5cd7b0df842bfa"`
[INFO] running `"docker" "rm" "-f" "b7a89a12edaf3909a91e38b0aa31e1ae3dd5857e84d3da975e5cd7b0df842bfa"`
[INFO] [stdout] b7a89a12edaf3909a91e38b0aa31e1ae3dd5857e84d3da975e5cd7b0df842bfa