[INFO] crate cpubars 0.2.1 is already in cache
[INFO] extracting crate cpubars 0.2.1 into work/ex/clippy-test-run/sources/stable/reg/cpubars/0.2.1
[INFO] extracting crate cpubars 0.2.1 into work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/reg/cpubars/0.2.1
[INFO] validating manifest of cpubars-0.2.1 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 cpubars-0.2.1 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 cpubars-0.2.1
[INFO] finished frobbing cpubars-0.2.1
[INFO] frobbed toml for cpubars-0.2.1 written to work/ex/clippy-test-run/sources/stable/reg/cpubars/0.2.1/Cargo.toml
[INFO] started frobbing cpubars-0.2.1
[INFO] finished frobbing cpubars-0.2.1
[INFO] frobbed toml for cpubars-0.2.1 written to work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/reg/cpubars/0.2.1/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 cpubars-0.2.1 against stable for clippy-test-run
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/clippy-test-run/worker-4/stable:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/clippy-test-run/sources/stable/reg/cpubars/0.2.1:/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] ea902560a472b4d9f87f11c730a17630ee7aefa425e9cddd916f60e8acc60f14
[INFO] running `"docker" "start" "-a" "ea902560a472b4d9f87f11c730a17630ee7aefa425e9cddd916f60e8acc60f14"`
[INFO] [stderr]     Checking cpubars v0.2.1 (/opt/crater/workdir)
[INFO] [stderr] warning: casting u32 to f64 may become silently lossy if types change
[INFO] [stderr]   --> src/model.rs:25:9
[INFO] [stderr]    |
[INFO] [stderr] 25 | /         (self.user
[INFO] [stderr] 26 | |             + self.nice
[INFO] [stderr] 27 | |             + self.system
[INFO] [stderr] 28 | |             + self.idle
[INFO] [stderr] ...  |
[INFO] [stderr] 31 | |             + self.softirq
[INFO] [stderr] 32 | |             + self.steal) as f64
[INFO] [stderr]    | |________________________________^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::cast_lossless)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#cast_lossless
[INFO] [stderr] help: try
[INFO] [stderr]    |
[INFO] [stderr] 25 |         f64::from(self.user
[INFO] [stderr] 26 |             + self.nice
[INFO] [stderr] 27 |             + self.system
[INFO] [stderr] 28 |             + self.idle
[INFO] [stderr] 29 |             + self.iowait
[INFO] [stderr] 30 |             + self.irq
[INFO] [stderr]  ...
[INFO] [stderr] 
[INFO] [stderr] warning: casting u32 to f64 may become silently lossy if types change
[INFO] [stderr]   --> src/model.rs:36:9
[INFO] [stderr]    |
[INFO] [stderr] 36 |         (self.idle + self.iowait) as f64
[INFO] [stderr]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try: `f64::from(self.idle + self.iowait)`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#cast_lossless
[INFO] [stderr] 
[INFO] [stderr] warning: single-character string constant used as pattern
[INFO] [stderr]  --> src/parser.rs:8:20
[INFO] [stderr]   |
[INFO] [stderr] 8 |             .split(" ")
[INFO] [stderr]   |                    ^^^ help: try using a char instead: `' '`
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(clippy::single_char_pattern)] on by default
[INFO] [stderr]   = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#single_char_pattern
[INFO] [stderr] 
[INFO] [stderr] warning: single-character string constant used as pattern
[INFO] [stderr]   --> src/parser.rs:28:16
[INFO] [stderr]    |
[INFO] [stderr] 28 |         .split("\n")
[INFO] [stderr]    |                ^^^^ help: try using a char instead: `'\n'`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#single_char_pattern
[INFO] [stderr] 
[INFO] [stderr] warning: this lifetime isn't used in the function definition
[INFO] [stderr]   --> src/main.rs:42:13
[INFO] [stderr]    |
[INFO] [stderr] 42 | fn get_stat<'a>() -> Result<Stat, failure::Error> {
[INFO] [stderr]    |             ^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::extra_unused_lifetimes)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#extra_unused_lifetimes
[INFO] [stderr] 
[INFO] [stderr] warning: casting u32 to f64 may become silently lossy if types change
[INFO] [stderr]   --> src/model.rs:25:9
[INFO] [stderr]    |
[INFO] [stderr] 25 | /         (self.user
[INFO] [stderr] 26 | |             + self.nice
[INFO] [stderr] 27 | |             + self.system
[INFO] [stderr] 28 | |             + self.idle
[INFO] [stderr] ...  |
[INFO] [stderr] 31 | |             + self.softirq
[INFO] [stderr] 32 | |             + self.steal) as f64
[INFO] [stderr]    | |________________________________^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::cast_lossless)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#cast_lossless
[INFO] [stderr] help: try
[INFO] [stderr]    |
[INFO] [stderr] 25 |         f64::from(self.user
[INFO] [stderr] 26 |             + self.nice
[INFO] [stderr] 27 |             + self.system
[INFO] [stderr] 28 |             + self.idle
[INFO] [stderr] 29 |             + self.iowait
[INFO] [stderr] 30 |             + self.irq
[INFO] [stderr]  ...
[INFO] [stderr] 
[INFO] [stderr] warning: casting u32 to f64 may become silently lossy if types change
[INFO] [stderr]   --> src/model.rs:36:9
[INFO] [stderr]    |
[INFO] [stderr] 36 |         (self.idle + self.iowait) as f64
[INFO] [stderr]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try: `f64::from(self.idle + self.iowait)`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#cast_lossless
[INFO] [stderr] 
[INFO] [stderr] warning: single-character string constant used as pattern
[INFO] [stderr]  --> src/parser.rs:8:20
[INFO] [stderr]   |
[INFO] [stderr] 8 |             .split(" ")
[INFO] [stderr]   |                    ^^^ help: try using a char instead: `' '`
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(clippy::single_char_pattern)] on by default
[INFO] [stderr]   = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#single_char_pattern
[INFO] [stderr] 
[INFO] [stderr] warning: single-character string constant used as pattern
[INFO] [stderr]   --> src/parser.rs:28:16
[INFO] [stderr]    |
[INFO] [stderr] 28 |         .split("\n")
[INFO] [stderr]    |                ^^^^ help: try using a char instead: `'\n'`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#single_char_pattern
[INFO] [stderr] 
[INFO] [stderr] warning: this lifetime isn't used in the function definition
[INFO] [stderr]   --> src/main.rs:42:13
[INFO] [stderr]    |
[INFO] [stderr] 42 | fn get_stat<'a>() -> Result<Stat, failure::Error> {
[INFO] [stderr]    |             ^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::extra_unused_lifetimes)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#extra_unused_lifetimes
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2.06s
[INFO] running `"docker" "inspect" "ea902560a472b4d9f87f11c730a17630ee7aefa425e9cddd916f60e8acc60f14"`
[INFO] running `"docker" "rm" "-f" "ea902560a472b4d9f87f11c730a17630ee7aefa425e9cddd916f60e8acc60f14"`
[INFO] [stdout] ea902560a472b4d9f87f11c730a17630ee7aefa425e9cddd916f60e8acc60f14