[INFO] updating cached repository icew4ll/rsub
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/icew4ll/rsub
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/icew4ll/rsub" "work/ex/clippy-test-run/sources/stable/gh/icew4ll/rsub"`
[INFO] [stderr] Cloning into 'work/ex/clippy-test-run/sources/stable/gh/icew4ll/rsub'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/icew4ll/rsub" "work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/gh/icew4ll/rsub"`
[INFO] [stderr] Cloning into 'work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/gh/icew4ll/rsub'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 0ec4c581fc7ec36fcb21b56a14966d728a3b6e87
[INFO] sha for GitHub repo icew4ll/rsub: 0ec4c581fc7ec36fcb21b56a14966d728a3b6e87
[INFO] validating manifest of icew4ll/rsub 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 icew4ll/rsub 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 icew4ll/rsub
[INFO] finished frobbing icew4ll/rsub
[INFO] frobbed toml for icew4ll/rsub written to work/ex/clippy-test-run/sources/stable/gh/icew4ll/rsub/Cargo.toml
[INFO] started frobbing icew4ll/rsub
[INFO] finished frobbing icew4ll/rsub
[INFO] frobbed toml for icew4ll/rsub written to work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/gh/icew4ll/rsub/Cargo.toml
[INFO] crate icew4ll/rsub 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 icew4ll/rsub 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/gh/icew4ll/rsub:/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] 57891d67a965fda0b6ca913f8d9e9e68a15bf37dd1ed14e882153b3d2516a9f5
[INFO] running `"docker" "start" "-a" "57891d67a965fda0b6ca913f8d9e9e68a15bf37dd1ed14e882153b3d2516a9f5"`
[INFO] [stderr]    Compiling cmake v0.1.30
[INFO] [stderr]    Compiling libz-sys v1.0.18
[INFO] [stderr]    Compiling openssl-sys v0.9.28
[INFO] [stderr]     Checking termios v0.2.2
[INFO] [stderr]     Checking subprocess v0.1.12
[INFO] [stderr]     Checking nix v0.9.0
[INFO] [stderr]     Checking clicolors-control v0.2.0
[INFO] [stderr]     Checking csv-core v0.1.4
[INFO] [stderr]     Checking regex v0.2.10
[INFO] [stderr]     Checking csv v1.0.0-beta.5
[INFO] [stderr]    Compiling libssh2-sys v0.2.6
[INFO] [stderr]     Checking parking_lot v0.5.4
[INFO] [stderr]     Checking shared_child v0.3.2
[INFO] [stderr]     Checking error-chain v0.10.0
[INFO] [stderr]     Checking error-chain v0.11.0
[INFO] [stderr]    Compiling openssl v0.9.24
[INFO] [stderr]     Checking console v0.6.1
[INFO] [stderr]     Checking os_pipe v0.6.0
[INFO] [stderr]     Checking ssl-expiration v0.1.1
[INFO] [stderr]     Checking duct v0.10.0
[INFO] [stderr]     Checking ssh2 v0.3.2
[INFO] [stderr]     Checking rsub v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: unused variable: `v2`
[INFO] [stderr]   --> src/main.rs:59:9
[INFO] [stderr]    |
[INFO] [stderr] 59 |     let v2 = s.lines()
[INFO] [stderr]    |         ^^ help: consider using `_v2` instead
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_variables)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: this let-binding has unit value. Consider omitting `let v2 =`
[INFO] [stderr]   --> src/main.rs:59:5
[INFO] [stderr]    |
[INFO] [stderr] 59 | /     let v2 = s.lines()
[INFO] [stderr] 60 | |         .map(|x| format!("x{}", x))
[INFO] [stderr] 61 | |         .for_each(|x| println!("{:?}", x));
[INFO] [stderr]    | |___________________________________________^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::let_unit_value)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#let_unit_value
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `v2`
[INFO] [stderr]   --> src/main.rs:59:9
[INFO] [stderr]    |
[INFO] [stderr] 59 |     let v2 = s.lines()
[INFO] [stderr]    |         ^^ help: consider using `_v2` instead
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_variables)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: this let-binding has unit value. Consider omitting `let v2 =`
[INFO] [stderr]   --> src/main.rs:59:5
[INFO] [stderr]    |
[INFO] [stderr] 59 | /     let v2 = s.lines()
[INFO] [stderr] 60 | |         .map(|x| format!("x{}", x))
[INFO] [stderr] 61 | |         .for_each(|x| println!("{:?}", x));
[INFO] [stderr]    | |___________________________________________^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::let_unit_value)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#let_unit_value
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 27.83s
[INFO] running `"docker" "inspect" "57891d67a965fda0b6ca913f8d9e9e68a15bf37dd1ed14e882153b3d2516a9f5"`
[INFO] running `"docker" "rm" "-f" "57891d67a965fda0b6ca913f8d9e9e68a15bf37dd1ed14e882153b3d2516a9f5"`
[INFO] [stdout] 57891d67a965fda0b6ca913f8d9e9e68a15bf37dd1ed14e882153b3d2516a9f5