[INFO] updating cached repository binary132/rlua-repl-test
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/binary132/rlua-repl-test
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/binary132/rlua-repl-test" "work/ex/clippy-test-run/sources/stable/gh/binary132/rlua-repl-test"`
[INFO] [stderr] Cloning into 'work/ex/clippy-test-run/sources/stable/gh/binary132/rlua-repl-test'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/binary132/rlua-repl-test" "work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/gh/binary132/rlua-repl-test"`
[INFO] [stderr] Cloning into 'work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/gh/binary132/rlua-repl-test'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 860dd7cc4c09f4ca48e1f02f44356b4cec22212a
[INFO] sha for GitHub repo binary132/rlua-repl-test: 860dd7cc4c09f4ca48e1f02f44356b4cec22212a
[INFO] validating manifest of binary132/rlua-repl-test 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 binary132/rlua-repl-test 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 binary132/rlua-repl-test
[INFO] finished frobbing binary132/rlua-repl-test
[INFO] frobbed toml for binary132/rlua-repl-test written to work/ex/clippy-test-run/sources/stable/gh/binary132/rlua-repl-test/Cargo.toml
[INFO] started frobbing binary132/rlua-repl-test
[INFO] finished frobbing binary132/rlua-repl-test
[INFO] frobbed toml for binary132/rlua-repl-test written to work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/gh/binary132/rlua-repl-test/Cargo.toml
[INFO] crate binary132/rlua-repl-test 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 binary132/rlua-repl-test against stable for clippy-test-run
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/clippy-test-run/worker-5/stable:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/clippy-test-run/sources/stable/gh/binary132/rlua-repl-test:/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] 78f81703f23d7fad9b70b1ab44fc5a72b9432834395f82350f33b80acafb65f9
[INFO] running `"docker" "start" "-a" "78f81703f23d7fad9b70b1ab44fc5a72b9432834395f82350f33b80acafb65f9"`
[INFO] [stderr]    Compiling rlua v0.9.7
[INFO] [stderr]     Checking rustyline v1.0.0
[INFO] [stderr]    Compiling structopt-derive v0.1.5
[INFO] [stderr]     Checking structopt v0.1.5
[INFO] [stderr]     Checking hello v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: useless use of `format!`
[INFO] [stderr]   --> src/main.rs:28:17
[INFO] [stderr]    |
[INFO] [stderr] 28 |                 format!("")
[INFO] [stderr]    |                 ^^^^^^^^^^^ help: consider using .to_string(): `"".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] 
[INFO] [stderr] warning: useless use of `format!`
[INFO] [stderr]   --> src/main.rs:45:65
[INFO] [stderr]    |
[INFO] [stderr] 45 |         Err(rlua::Error::RuntimeError(e)) => Ok(MultiLine::Done(format!("{}", e))),
[INFO] [stderr]    |                                                                 ^^^^^^^^^^^^^^^^ help: consider using .to_string(): `e.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: length comparison to zero
[INFO] [stderr]   --> src/main.rs:64:16
[INFO] [stderr]    |
[INFO] [stderr] 64 |             if accum.len() == 0 {
[INFO] [stderr]    |                ^^^^^^^^^^^^^^^^ help: using `is_empty` is clearer and more explicit: `accum.is_empty()`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::len_zero)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#len_zero
[INFO] [stderr] 
[INFO] [stderr] warning: length comparison to zero
[INFO] [stderr]   --> src/main.rs:88:16
[INFO] [stderr]    |
[INFO] [stderr] 88 |             if accum.len() == 0 {
[INFO] [stderr]    |                ^^^^^^^^^^^^^^^^ help: using `is_empty` is clearer and more explicit: `accum.is_empty()`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#len_zero
[INFO] [stderr] 
[INFO] [stderr] warning: useless use of `format!`
[INFO] [stderr]   --> src/main.rs:89:21
[INFO] [stderr]    |
[INFO] [stderr] 89 |                 Err(format!("C-d"))
[INFO] [stderr]    |                     ^^^^^^^^^^^^^^ help: consider using .to_string(): `"C-d".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:103:48
[INFO] [stderr]     |
[INFO] [stderr] 103 |         Err(ReadlineError::Interrupted) => Err(format!("C-c")),
[INFO] [stderr]     |                                                ^^^^^^^^^^^^^^ help: consider using .to_string(): `"C-c".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:28:17
[INFO] [stderr]    |
[INFO] [stderr] 28 |                 format!("")
[INFO] [stderr]    |                 ^^^^^^^^^^^ help: consider using .to_string(): `"".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] 
[INFO] [stderr] warning: useless use of `format!`
[INFO] [stderr]   --> src/main.rs:45:65
[INFO] [stderr]    |
[INFO] [stderr] 45 |         Err(rlua::Error::RuntimeError(e)) => Ok(MultiLine::Done(format!("{}", e))),
[INFO] [stderr]    |                                                                 ^^^^^^^^^^^^^^^^ help: consider using .to_string(): `e.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: length comparison to zero
[INFO] [stderr]   --> src/main.rs:64:16
[INFO] [stderr]    |
[INFO] [stderr] 64 |             if accum.len() == 0 {
[INFO] [stderr]    |                ^^^^^^^^^^^^^^^^ help: using `is_empty` is clearer and more explicit: `accum.is_empty()`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::len_zero)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#len_zero
[INFO] [stderr] 
[INFO] [stderr] warning: length comparison to zero
[INFO] [stderr]   --> src/main.rs:88:16
[INFO] [stderr]    |
[INFO] [stderr] 88 |             if accum.len() == 0 {
[INFO] [stderr]    |                ^^^^^^^^^^^^^^^^ help: using `is_empty` is clearer and more explicit: `accum.is_empty()`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#len_zero
[INFO] [stderr] 
[INFO] [stderr] warning: useless use of `format!`
[INFO] [stderr]   --> src/main.rs:89:21
[INFO] [stderr]    |
[INFO] [stderr] 89 |                 Err(format!("C-d"))
[INFO] [stderr]    |                     ^^^^^^^^^^^^^^ help: consider using .to_string(): `"C-d".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:103:48
[INFO] [stderr]     |
[INFO] [stderr] 103 |         Err(ReadlineError::Interrupted) => Err(format!("C-c")),
[INFO] [stderr]     |                                                ^^^^^^^^^^^^^^ help: consider using .to_string(): `"C-c".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]     Finished dev [unoptimized + debuginfo] target(s) in 11.64s
[INFO] running `"docker" "inspect" "78f81703f23d7fad9b70b1ab44fc5a72b9432834395f82350f33b80acafb65f9"`
[INFO] running `"docker" "rm" "-f" "78f81703f23d7fad9b70b1ab44fc5a72b9432834395f82350f33b80acafb65f9"`
[INFO] [stdout] 78f81703f23d7fad9b70b1ab44fc5a72b9432834395f82350f33b80acafb65f9