[INFO] updating cached repository tkrs/rust-redis-pubsub-example [INFO] running `"git" "fetch" "--all"` [INFO] [stdout] Fetching origin [INFO] [stderr] From git://github.com/tkrs/rust-redis-pubsub-example [INFO] [stderr] * branch HEAD -> FETCH_HEAD [INFO] running `"git" "clone" "work/cache/sources/gh/tkrs/rust-redis-pubsub-example" "work/ex/clippy-test-run/sources/stable/gh/tkrs/rust-redis-pubsub-example"` [INFO] [stderr] Cloning into 'work/ex/clippy-test-run/sources/stable/gh/tkrs/rust-redis-pubsub-example'... [INFO] [stderr] done. [INFO] running `"git" "clone" "work/cache/sources/gh/tkrs/rust-redis-pubsub-example" "work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/gh/tkrs/rust-redis-pubsub-example"` [INFO] [stderr] Cloning into 'work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/gh/tkrs/rust-redis-pubsub-example'... [INFO] [stderr] done. [INFO] running `"git" "rev-parse" "HEAD"` [INFO] [stdout] 6031085b5f870c8816102e8f8096af98b744d14b [INFO] sha for GitHub repo tkrs/rust-redis-pubsub-example: 6031085b5f870c8816102e8f8096af98b744d14b [INFO] validating manifest of tkrs/rust-redis-pubsub-example 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 tkrs/rust-redis-pubsub-example 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 tkrs/rust-redis-pubsub-example [INFO] finished frobbing tkrs/rust-redis-pubsub-example [INFO] frobbed toml for tkrs/rust-redis-pubsub-example written to work/ex/clippy-test-run/sources/stable/gh/tkrs/rust-redis-pubsub-example/Cargo.toml [INFO] started frobbing tkrs/rust-redis-pubsub-example [INFO] finished frobbing tkrs/rust-redis-pubsub-example [INFO] frobbed toml for tkrs/rust-redis-pubsub-example written to work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/gh/tkrs/rust-redis-pubsub-example/Cargo.toml [INFO] crate tkrs/rust-redis-pubsub-example 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 tkrs/rust-redis-pubsub-example against stable for clippy-test-run [INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/clippy-test-run/worker-1/stable:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/clippy-test-run/sources/stable/gh/tkrs/rust-redis-pubsub-example:/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] 38b0b214e52868040d74b00d47d96a274a286f7447919c41bc3d7c21a3395668 [INFO] running `"docker" "start" "-a" "38b0b214e52868040d74b00d47d96a274a286f7447919c41bc3d7c21a3395668"` [INFO] [stderr] Compiling redis v0.9.0 [INFO] [stderr] Checking log v0.4.3 [INFO] [stderr] Checking combine v3.5.1 [INFO] [stderr] Checking mio v0.6.15 [INFO] [stderr] Checking tokio-io v0.1.7 [INFO] [stderr] Checking tokio-codec v0.1.0 [INFO] [stderr] Checking tokio-reactor v0.1.3 [INFO] [stderr] Checking tokio-tcp v0.1.1 [INFO] [stderr] Checking rust-redis-pubsub-example v0.1.0 (/opt/crater/workdir) [INFO] [stderr] warning: this let-binding has unit value. Consider omitting `let _ =` [INFO] [stderr] --> src/main.rs:58:13 [INFO] [stderr] | [INFO] [stderr] 58 | let _: () = conn.publish("boo", x).unwrap(); [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:58:13 [INFO] [stderr] | [INFO] [stderr] 58 | let _: () = conn.publish("boo", x).unwrap(); [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 31.62s [INFO] running `"docker" "inspect" "38b0b214e52868040d74b00d47d96a274a286f7447919c41bc3d7c21a3395668"` [INFO] running `"docker" "rm" "-f" "38b0b214e52868040d74b00d47d96a274a286f7447919c41bc3d7c21a3395668"` [INFO] [stdout] 38b0b214e52868040d74b00d47d96a274a286f7447919c41bc3d7c21a3395668