[INFO] updating cached repository f0x52/rust_bar
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/f0x52/rust_bar
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/f0x52/rust_bar" "work/ex/clippy-test-run/sources/stable/gh/f0x52/rust_bar"`
[INFO] [stderr] Cloning into 'work/ex/clippy-test-run/sources/stable/gh/f0x52/rust_bar'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/f0x52/rust_bar" "work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/gh/f0x52/rust_bar"`
[INFO] [stderr] Cloning into 'work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/gh/f0x52/rust_bar'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 142eeb62600a9aeb48a0fbc2ed31a892fb708a3a
[INFO] sha for GitHub repo f0x52/rust_bar: 142eeb62600a9aeb48a0fbc2ed31a892fb708a3a
[INFO] validating manifest of f0x52/rust_bar 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 f0x52/rust_bar 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 f0x52/rust_bar
[INFO] finished frobbing f0x52/rust_bar
[INFO] frobbed toml for f0x52/rust_bar written to work/ex/clippy-test-run/sources/stable/gh/f0x52/rust_bar/Cargo.toml
[INFO] started frobbing f0x52/rust_bar
[INFO] finished frobbing f0x52/rust_bar
[INFO] frobbed toml for f0x52/rust_bar written to work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/gh/f0x52/rust_bar/Cargo.toml
[INFO] crate f0x52/rust_bar has a lockfile. skipping
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+stable" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr]     Blocking waiting for file lock on the registry index
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+stable" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] linting f0x52/rust_bar against stable for clippy-test-run
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/clippy-test-run/worker-2/stable:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/clippy-test-run/sources/stable/gh/f0x52/rust_bar:/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] 6b7b70566c4c80e812f8c922d184a3e4147e8e7a91f9f694c6ef45a70e17f778
[INFO] running `"docker" "start" "-a" "6b7b70566c4c80e812f8c922d184a3e4147e8e7a91f9f694c6ef45a70e17f778"`
[INFO] [stderr]     Checking memchr v2.0.1
[INFO] [stderr]     Checking aho-corasick v0.6.4
[INFO] [stderr]     Checking regex v0.2.3
[INFO] [stderr]     Checking rust_bar v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: single-character string constant used as pattern
[INFO] [stderr]   --> src/main.rs:24:31
[INFO] [stderr]    |
[INFO] [stderr] 24 |             contents.contains("1")
[INFO] [stderr]    |                               ^^^ help: try using a char instead: `'1'`
[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: useless use of `format!`
[INFO] [stderr]   --> src/main.rs:48:23
[INFO] [stderr]    |
[INFO] [stderr] 48 |     let battery_cap = format!("{}", batteries);
[INFO] [stderr]    |                       ^^^^^^^^^^^^^^^^^^^^^^^^ help: consider using .to_string(): `batteries.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: useless use of `format!`
[INFO] [stderr]   --> src/main.rs:78:9
[INFO] [stderr]    |
[INFO] [stderr] 78 |         format!("")
[INFO] [stderr]    |         ^^^^^^^^^^^ help: consider using .to_string(): `"".to_string()`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#useless_format
[INFO] [stderr] 
[INFO] [stderr] warning: useless use of `format!`
[INFO] [stderr]    --> src/main.rs:149:5
[INFO] [stderr]     |
[INFO] [stderr] 149 |     format!("{}", out.trim())
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^ help: consider using .to_string(): `out.trim().to_string()`
[INFO] [stderr]     |
[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: single-character string constant used as pattern
[INFO] [stderr]   --> src/main.rs:24:31
[INFO] [stderr]    |
[INFO] [stderr] 24 |             contents.contains("1")
[INFO] [stderr]    |                               ^^^ help: try using a char instead: `'1'`
[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: useless use of `format!`
[INFO] [stderr]   --> src/main.rs:48:23
[INFO] [stderr]    |
[INFO] [stderr] 48 |     let battery_cap = format!("{}", batteries);
[INFO] [stderr]    |                       ^^^^^^^^^^^^^^^^^^^^^^^^ help: consider using .to_string(): `batteries.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: useless use of `format!`
[INFO] [stderr]   --> src/main.rs:78:9
[INFO] [stderr]    |
[INFO] [stderr] 78 |         format!("")
[INFO] [stderr]    |         ^^^^^^^^^^^ help: consider using .to_string(): `"".to_string()`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#useless_format
[INFO] [stderr] 
[INFO] [stderr] warning: useless use of `format!`
[INFO] [stderr]    --> src/main.rs:149:5
[INFO] [stderr]     |
[INFO] [stderr] 149 |     format!("{}", out.trim())
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^ help: consider using .to_string(): `out.trim().to_string()`
[INFO] [stderr]     |
[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]     Finished dev [unoptimized + debuginfo] target(s) in 5.38s
[INFO] running `"docker" "inspect" "6b7b70566c4c80e812f8c922d184a3e4147e8e7a91f9f694c6ef45a70e17f778"`
[INFO] running `"docker" "rm" "-f" "6b7b70566c4c80e812f8c922d184a3e4147e8e7a91f9f694c6ef45a70e17f778"`
[INFO] [stdout] 6b7b70566c4c80e812f8c922d184a3e4147e8e7a91f9f694c6ef45a70e17f778