[INFO] crate iot_center 0.0.1 is already in cache
[INFO] extracting crate iot_center 0.0.1 into work/ex/clippy-test-run/sources/stable/reg/iot_center/0.0.1
[INFO] extracting crate iot_center 0.0.1 into work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/reg/iot_center/0.0.1
[INFO] validating manifest of iot_center-0.0.1 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 iot_center-0.0.1 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 iot_center-0.0.1
[INFO] finished frobbing iot_center-0.0.1
[INFO] frobbed toml for iot_center-0.0.1 written to work/ex/clippy-test-run/sources/stable/reg/iot_center/0.0.1/Cargo.toml
[INFO] started frobbing iot_center-0.0.1
[INFO] finished frobbing iot_center-0.0.1
[INFO] frobbed toml for iot_center-0.0.1 written to work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/reg/iot_center/0.0.1/Cargo.toml
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+stable" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+stable" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[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 iot_center-0.0.1 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/reg/iot_center/0.0.1:/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] 5386bef20aa402ae4104933702b1ae0a53e5fd37da323a4d29ceb46d2ec5d946
[INFO] running `"docker" "start" "-a" "5386bef20aa402ae4104933702b1ae0a53e5fd37da323a4d29ceb46d2ec5d946"`
[INFO] [stderr]     Checking chan-signal v0.3.2
[INFO] [stderr]     Checking log4rs v0.8.1
[INFO] [stderr]     Checking mqtt-protocol v0.3.1
[INFO] [stderr]     Checking rumqtt v0.10.1
[INFO] [stderr]     Checking iot_center v0.0.1 (/opt/crater/workdir)
[INFO] [stderr] warning: field is never used: `client`
[INFO] [stderr]  --> src/mqtt/mod.rs:9:5
[INFO] [stderr]   |
[INFO] [stderr] 9 |     client: MqttClient
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(dead_code)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: use of `expect` followed by a function call
[INFO] [stderr]   --> src/config/mod.rs:43:42
[INFO] [stderr]    |
[INFO] [stderr] 43 |         let mut f = File::open(location).expect(format!("fail to open config file: {}", location).as_str());
[INFO] [stderr]    |                                          ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try this: `unwrap_or_else(|_| panic!("fail to open config file: {}", location))`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::expect_fun_call)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#expect_fun_call
[INFO] [stderr] 
[INFO] [stderr] warning: use of `expect` followed by a function call
[INFO] [stderr]   --> src/config/mod.rs:46:40
[INFO] [stderr]    |
[INFO] [stderr] 46 |         f.read_to_string(&mut content).expect(format!("fail to read config file: {}", location).as_str());
[INFO] [stderr]    |                                        ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try this: `unwrap_or_else(|_| panic!("fail to read config file: {}", location))`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#expect_fun_call
[INFO] [stderr] 
[INFO] [stderr] warning: use of `unwrap_or` followed by a function call
[INFO] [stderr]   --> src/config/mod.rs:68:39
[INFO] [stderr]    |
[INFO] [stderr] 68 |     let profile = env::var("PROFILE").unwrap_or("debug".to_string());
[INFO] [stderr]    |                                       ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try this: `unwrap_or_else(|_| "debug".to_string())`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::or_fun_call)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#or_fun_call
[INFO] [stderr] 
[INFO] [stderr] warning: use of `expect` followed by a function call
[INFO] [stderr]   --> src/config/mod.rs:76:10
[INFO] [stderr]    |
[INFO] [stderr] 76 |         .expect(format!("invalid level: {}", log.level).as_str());
[INFO] [stderr]    |          ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try this: `unwrap_or_else(|_| panic!("invalid level: {}", log.level))`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#expect_fun_call
[INFO] [stderr] 
[INFO] [stderr] warning: field is never used: `client`
[INFO] [stderr]  --> src/mqtt/mod.rs:9:5
[INFO] [stderr]   |
[INFO] [stderr] 9 |     client: MqttClient
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(dead_code)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: use of `expect` followed by a function call
[INFO] [stderr]   --> src/config/mod.rs:43:42
[INFO] [stderr]    |
[INFO] [stderr] 43 |         let mut f = File::open(location).expect(format!("fail to open config file: {}", location).as_str());
[INFO] [stderr]    |                                          ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try this: `unwrap_or_else(|_| panic!("fail to open config file: {}", location))`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::expect_fun_call)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#expect_fun_call
[INFO] [stderr] 
[INFO] [stderr] warning: use of `expect` followed by a function call
[INFO] [stderr]   --> src/config/mod.rs:46:40
[INFO] [stderr]    |
[INFO] [stderr] 46 |         f.read_to_string(&mut content).expect(format!("fail to read config file: {}", location).as_str());
[INFO] [stderr]    |                                        ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try this: `unwrap_or_else(|_| panic!("fail to read config file: {}", location))`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#expect_fun_call
[INFO] [stderr] 
[INFO] [stderr] warning: use of `unwrap_or` followed by a function call
[INFO] [stderr]   --> src/config/mod.rs:68:39
[INFO] [stderr]    |
[INFO] [stderr] 68 |     let profile = env::var("PROFILE").unwrap_or("debug".to_string());
[INFO] [stderr]    |                                       ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try this: `unwrap_or_else(|_| "debug".to_string())`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::or_fun_call)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#or_fun_call
[INFO] [stderr] 
[INFO] [stderr] warning: use of `expect` followed by a function call
[INFO] [stderr]   --> src/config/mod.rs:76:10
[INFO] [stderr]    |
[INFO] [stderr] 76 |         .expect(format!("invalid level: {}", log.level).as_str());
[INFO] [stderr]    |          ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try this: `unwrap_or_else(|_| panic!("invalid level: {}", log.level))`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#expect_fun_call
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 11.34s
[INFO] running `"docker" "inspect" "5386bef20aa402ae4104933702b1ae0a53e5fd37da323a4d29ceb46d2ec5d946"`
[INFO] running `"docker" "rm" "-f" "5386bef20aa402ae4104933702b1ae0a53e5fd37da323a4d29ceb46d2ec5d946"`
[INFO] [stdout] 5386bef20aa402ae4104933702b1ae0a53e5fd37da323a4d29ceb46d2ec5d946