[INFO] updating cached repository mesalock-linux/minit
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/mesalock-linux/minit
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/mesalock-linux/minit" "work/ex/clippy-test-run/sources/stable/gh/mesalock-linux/minit"`
[INFO] [stderr] Cloning into 'work/ex/clippy-test-run/sources/stable/gh/mesalock-linux/minit'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/mesalock-linux/minit" "work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/gh/mesalock-linux/minit"`
[INFO] [stderr] Cloning into 'work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/gh/mesalock-linux/minit'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 2f810e4a07b91ea56d18021a7a714c2df659fe7d
[INFO] sha for GitHub repo mesalock-linux/minit: 2f810e4a07b91ea56d18021a7a714c2df659fe7d
[INFO] validating manifest of mesalock-linux/minit 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 mesalock-linux/minit 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 mesalock-linux/minit
[INFO] finished frobbing mesalock-linux/minit
[INFO] frobbed toml for mesalock-linux/minit written to work/ex/clippy-test-run/sources/stable/gh/mesalock-linux/minit/Cargo.toml
[INFO] started frobbing mesalock-linux/minit
[INFO] finished frobbing mesalock-linux/minit
[INFO] frobbed toml for mesalock-linux/minit written to work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/gh/mesalock-linux/minit/Cargo.toml
[INFO] crate mesalock-linux/minit 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 mesalock-linux/minit against stable+rustflags=-Dclippy::into_iter_on_array for clippy-test-run
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/clippy-test-run/worker-3/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/gh/mesalock-linux/minit:/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 -Dclippy::into_iter_on_array" "-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] 8606ddbe73ac4353326f6b397ad9e3e0454a0385868b5ef090ab5d8b3a26eb74
[INFO] running `"docker" "start" "-a" "8606ddbe73ac4353326f6b397ad9e3e0454a0385868b5ef090ab5d8b3a26eb74"`
[INFO] [stderr]     Checking nix v0.9.0
[INFO] [stderr]     Checking minit v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: this let-binding has unit value. Consider omitting `let _ =`
[INFO] [stderr]   --> src/main.rs:83:5
[INFO] [stderr]    |
[INFO] [stderr] 83 |     let _ = mount::mount(Some("proc"), "/proc", Some("proc"), proc_mount_flags, Some("mode=0555")).expect("mount proc failed");
[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: this let-binding has unit value. Consider omitting `let _ =`
[INFO] [stderr]   --> src/main.rs:87:5
[INFO] [stderr]    |
[INFO] [stderr] 87 |     let _ = mount::mount(Some("dev"), "/dev", Some("devtmpfs"), dev_mount_flags, Some("mode=0755")).expect("mount tmp failed");
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[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: this let-binding has unit value. Consider omitting `let _ =`
[INFO] [stderr]   --> src/main.rs:91:5
[INFO] [stderr]    |
[INFO] [stderr] 91 |     let _ = mount::mount(Some("sysfs"), "/sys", Some("sysfs"), sys_mount_flags, Some("mode=0555")).expect("mount sys failed");
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[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: this let-binding has unit value. Consider omitting `let _ =`
[INFO] [stderr]   --> src/main.rs:83:5
[INFO] [stderr]    |
[INFO] [stderr] 83 |     let _ = mount::mount(Some("proc"), "/proc", Some("proc"), proc_mount_flags, Some("mode=0555")).expect("mount proc failed");
[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: this let-binding has unit value. Consider omitting `let _ =`
[INFO] [stderr]   --> src/main.rs:87:5
[INFO] [stderr]    |
[INFO] [stderr] 87 |     let _ = mount::mount(Some("dev"), "/dev", Some("devtmpfs"), dev_mount_flags, Some("mode=0755")).expect("mount tmp failed");
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[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: this let-binding has unit value. Consider omitting `let _ =`
[INFO] [stderr]   --> src/main.rs:91:5
[INFO] [stderr]    |
[INFO] [stderr] 91 |     let _ = mount::mount(Some("sysfs"), "/sys", Some("sysfs"), sys_mount_flags, Some("mode=0555")).expect("mount sys failed");
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[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 6.11s
[INFO] running `"docker" "inspect" "8606ddbe73ac4353326f6b397ad9e3e0454a0385868b5ef090ab5d8b3a26eb74"`
[INFO] running `"docker" "rm" "-f" "8606ddbe73ac4353326f6b397ad9e3e0454a0385868b5ef090ab5d8b3a26eb74"`
[INFO] [stdout] 8606ddbe73ac4353326f6b397ad9e3e0454a0385868b5ef090ab5d8b3a26eb74