[INFO] updating cached repository goodeggs/docker-compose-cacher
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/goodeggs/docker-compose-cacher
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/goodeggs/docker-compose-cacher" "work/ex/clippy-test-run/sources/stable/gh/goodeggs/docker-compose-cacher"`
[INFO] [stderr] Cloning into 'work/ex/clippy-test-run/sources/stable/gh/goodeggs/docker-compose-cacher'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/goodeggs/docker-compose-cacher" "work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/gh/goodeggs/docker-compose-cacher"`
[INFO] [stderr] Cloning into 'work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/gh/goodeggs/docker-compose-cacher'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 50fe0b2765ee170d888b238cf519b07942691e28
[INFO] sha for GitHub repo goodeggs/docker-compose-cacher: 50fe0b2765ee170d888b238cf519b07942691e28
[INFO] validating manifest of goodeggs/docker-compose-cacher 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 goodeggs/docker-compose-cacher 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 goodeggs/docker-compose-cacher
[INFO] finished frobbing goodeggs/docker-compose-cacher
[INFO] frobbed toml for goodeggs/docker-compose-cacher written to work/ex/clippy-test-run/sources/stable/gh/goodeggs/docker-compose-cacher/Cargo.toml
[INFO] started frobbing goodeggs/docker-compose-cacher
[INFO] finished frobbing goodeggs/docker-compose-cacher
[INFO] frobbed toml for goodeggs/docker-compose-cacher written to work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/gh/goodeggs/docker-compose-cacher/Cargo.toml
[INFO] crate goodeggs/docker-compose-cacher 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 goodeggs/docker-compose-cacher 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/goodeggs/docker-compose-cacher:/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] 8ecd32125c6b8ac6d36d9ba288aa953744e85b8c3e85d409ffe9e5fcf0a3366a
[INFO] running `"docker" "start" "-a" "8ecd32125c6b8ac6d36d9ba288aa953744e85b8c3e85d409ffe9e5fcf0a3366a"`
[INFO] [stderr]     Blocking waiting for file lock on the registry index
[INFO] [stderr]     Checking shellexpand v1.0.0
[INFO] [stderr]     Checking deque v0.3.1
[INFO] [stderr]     Checking rayon v0.6.0
[INFO] [stderr]     Checking docker-compose-cacher v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: unneeded return statement
[INFO] [stderr]   --> src/main.rs:89:3
[INFO] [stderr]    |
[INFO] [stderr] 89 |   return Path::new(&filename).exists()
[INFO] [stderr]    |   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove `return` as shown: `Path::new(&filename).exists()`
[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: unneeded return statement
[INFO] [stderr]   --> src/main.rs:89:3
[INFO] [stderr]    |
[INFO] [stderr] 89 |   return Path::new(&filename).exists()
[INFO] [stderr]    |   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove `return` as shown: `Path::new(&filename).exists()`
[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: useless use of `format!`
[INFO] [stderr]   --> src/main.rs:40:65
[INFO] [stderr]    |
[INFO] [stderr] 40 |     let raw_cache_path = matches.opt_str("d").unwrap_or_else(|| format!("{}", "~/.docker-compose-cacher"));
[INFO] [stderr]    |                                                                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: consider using .to_string(): `"~/.docker-compose-cacher".to_string()`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::useless_format)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#useless_format
[INFO] [stderr]    = note: this error originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: you seem to want to iterate on a map's values
[INFO] [stderr]   --> src/main.rs:54:23
[INFO] [stderr]    |
[INFO] [stderr] 54 |   for (_, service) in services {
[INFO] [stderr]    |                       ^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::for_kv_map)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#for_kv_map
[INFO] [stderr] help: use the corresponding method
[INFO] [stderr]    |
[INFO] [stderr] 54 |   for service in services.values() {
[INFO] [stderr]    |       ^^^^^^^    ^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: useless use of `format!`
[INFO] [stderr]   --> src/main.rs:40:65
[INFO] [stderr]    |
[INFO] [stderr] 40 |     let raw_cache_path = matches.opt_str("d").unwrap_or_else(|| format!("{}", "~/.docker-compose-cacher"));
[INFO] [stderr]    |                                                                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: consider using .to_string(): `"~/.docker-compose-cacher".to_string()`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::useless_format)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#useless_format
[INFO] [stderr]    = note: this error originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: you seem to want to iterate on a map's values
[INFO] [stderr]   --> src/main.rs:54:23
[INFO] [stderr]    |
[INFO] [stderr] 54 |   for (_, service) in services {
[INFO] [stderr]    |                       ^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::for_kv_map)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#for_kv_map
[INFO] [stderr] help: use the corresponding method
[INFO] [stderr]    |
[INFO] [stderr] 54 |   for service in services.values() {
[INFO] [stderr]    |       ^^^^^^^    ^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2.87s
[INFO] running `"docker" "inspect" "8ecd32125c6b8ac6d36d9ba288aa953744e85b8c3e85d409ffe9e5fcf0a3366a"`
[INFO] running `"docker" "rm" "-f" "8ecd32125c6b8ac6d36d9ba288aa953744e85b8c3e85d409ffe9e5fcf0a3366a"`
[INFO] [stdout] 8ecd32125c6b8ac6d36d9ba288aa953744e85b8c3e85d409ffe9e5fcf0a3366a