[INFO] crate netns 0.1.0 is already in cache [INFO] extracting crate netns 0.1.0 into work/ex/clippy-test-run/sources/stable/reg/netns/0.1.0 [INFO] extracting crate netns 0.1.0 into work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/reg/netns/0.1.0 [INFO] validating manifest of netns-0.1.0 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 netns-0.1.0 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 netns-0.1.0 [INFO] finished frobbing netns-0.1.0 [INFO] frobbed toml for netns-0.1.0 written to work/ex/clippy-test-run/sources/stable/reg/netns/0.1.0/Cargo.toml [INFO] started frobbing netns-0.1.0 [INFO] finished frobbing netns-0.1.0 [INFO] frobbed toml for netns-0.1.0 written to work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/reg/netns/0.1.0/Cargo.toml [INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+stable" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"` [INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+stable" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"` [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 netns-0.1.0 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/reg/netns/0.1.0:/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] 6fdd3493e1f4bdf672bb6b7f03cd51f96b1ef93bcc8cc4884b5b525580ab2a8f [INFO] running `"docker" "start" "-a" "6fdd3493e1f4bdf672bb6b7f03cd51f96b1ef93bcc8cc4884b5b525580ab2a8f"` [INFO] [stderr] Checking netns v0.1.0 (/opt/crater/workdir) [INFO] [stderr] warning: redundant field names in struct initialization [INFO] [stderr] --> src/netns_linux.rs:57:13 [INFO] [stderr] | [INFO] [stderr] 57 | fd: fd, [INFO] [stderr] | ^^^^^^ help: replace it with: `fd` [INFO] [stderr] | [INFO] [stderr] = note: #[warn(clippy::redundant_field_names)] on by default [INFO] [stderr] = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#redundant_field_names [INFO] [stderr] [INFO] [stderr] warning: redundant field names in struct initialization [INFO] [stderr] --> src/netns_linux.rs:58:13 [INFO] [stderr] | [INFO] [stderr] 58 | path: path, [INFO] [stderr] | ^^^^^^^^^^ help: replace it with: `path` [INFO] [stderr] | [INFO] [stderr] = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#redundant_field_names [INFO] [stderr] [INFO] [stderr] warning: redundant field names in struct initialization [INFO] [stderr] --> src/netns_linux.rs:57:13 [INFO] [stderr] | [INFO] [stderr] 57 | fd: fd, [INFO] [stderr] | ^^^^^^ help: replace it with: `fd` [INFO] [stderr] | [INFO] [stderr] = note: #[warn(clippy::redundant_field_names)] on by default [INFO] [stderr] = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#redundant_field_names [INFO] [stderr] [INFO] [stderr] warning: redundant field names in struct initialization [INFO] [stderr] --> src/netns_linux.rs:58:13 [INFO] [stderr] | [INFO] [stderr] 58 | path: path, [INFO] [stderr] | ^^^^^^^^^^ help: replace it with: `path` [INFO] [stderr] | [INFO] [stderr] = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#redundant_field_names [INFO] [stderr] [INFO] [stderr] warning: unneeded return statement [INFO] [stderr] --> src/netns_linux.rs:42:9 [INFO] [stderr] | [INFO] [stderr] 42 | return NetNS::get_from_thread(getpid(), gettid()); [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove `return` as shown: `NetNS::get_from_thread(getpid(), gettid())` [INFO] [stderr] | [INFO] [stderr] = note: #[warn(clippy::needless_return)] on by default [INFO] [stderr] = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_return [INFO] [stderr] [INFO] [stderr] warning: unneeded return statement [INFO] [stderr] --> src/netns_linux.rs:50:9 [INFO] [stderr] | [INFO] [stderr] 50 | / return NetNS::get_from_path(PathBuf::from(format!("/proc/{}/task/{}/ns/net", pid, tid) [INFO] [stderr] 51 | | .as_str())); [INFO] [stderr] | |________________________^ [INFO] [stderr] | [INFO] [stderr] = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_return [INFO] [stderr] help: remove `return` as shown [INFO] [stderr] | [INFO] [stderr] 50 | NetNS::get_from_path(PathBuf::from(format!("/proc/{}/task/{}/ns/net", pid, tid) [INFO] [stderr] 51 | .as_str())) [INFO] [stderr] | [INFO] [stderr] [INFO] [stderr] warning: unneeded return statement [INFO] [stderr] --> src/netns_linux.rs:56:9 [INFO] [stderr] | [INFO] [stderr] 56 | / return Ok(NetNS { [INFO] [stderr] 57 | | fd: fd, [INFO] [stderr] 58 | | path: path, [INFO] [stderr] 59 | | }); [INFO] [stderr] | |___________^ [INFO] [stderr] | [INFO] [stderr] = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_return [INFO] [stderr] help: remove `return` as shown [INFO] [stderr] | [INFO] [stderr] 56 | Ok(NetNS { [INFO] [stderr] 57 | fd: fd, [INFO] [stderr] 58 | path: path, [INFO] [stderr] 59 | }) [INFO] [stderr] | [INFO] [stderr] [INFO] [stderr] warning: unneeded return statement [INFO] [stderr] --> src/netns_linux.rs:42:9 [INFO] [stderr] | [INFO] [stderr] 42 | return NetNS::get_from_thread(getpid(), gettid()); [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove `return` as shown: `NetNS::get_from_thread(getpid(), gettid())` [INFO] [stderr] | [INFO] [stderr] = note: #[warn(clippy::needless_return)] on by default [INFO] [stderr] = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_return [INFO] [stderr] [INFO] [stderr] warning: unneeded return statement [INFO] [stderr] --> src/netns_linux.rs:50:9 [INFO] [stderr] | [INFO] [stderr] 50 | / return NetNS::get_from_path(PathBuf::from(format!("/proc/{}/task/{}/ns/net", pid, tid) [INFO] [stderr] 51 | | .as_str())); [INFO] [stderr] | |________________________^ [INFO] [stderr] | [INFO] [stderr] = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_return [INFO] [stderr] help: remove `return` as shown [INFO] [stderr] | [INFO] [stderr] 50 | NetNS::get_from_path(PathBuf::from(format!("/proc/{}/task/{}/ns/net", pid, tid) [INFO] [stderr] 51 | .as_str())) [INFO] [stderr] | [INFO] [stderr] [INFO] [stderr] warning: unneeded return statement [INFO] [stderr] --> src/netns_linux.rs:56:9 [INFO] [stderr] | [INFO] [stderr] 56 | / return Ok(NetNS { [INFO] [stderr] 57 | | fd: fd, [INFO] [stderr] 58 | | path: path, [INFO] [stderr] 59 | | }); [INFO] [stderr] | |___________^ [INFO] [stderr] | [INFO] [stderr] = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_return [INFO] [stderr] help: remove `return` as shown [INFO] [stderr] | [INFO] [stderr] 56 | Ok(NetNS { [INFO] [stderr] 57 | fd: fd, [INFO] [stderr] 58 | path: path, [INFO] [stderr] 59 | }) [INFO] [stderr] | [INFO] [stderr] [INFO] [stderr] warning: unused `std::result::Result` that must be used [INFO] [stderr] --> examples/basic.rs:11:3 [INFO] [stderr] | [INFO] [stderr] 11 | NetNS::set(temp); [INFO] [stderr] | ^^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: #[warn(unused_must_use)] on by default [INFO] [stderr] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stderr] [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 1.74s [INFO] running `"docker" "inspect" "6fdd3493e1f4bdf672bb6b7f03cd51f96b1ef93bcc8cc4884b5b525580ab2a8f"` [INFO] running `"docker" "rm" "-f" "6fdd3493e1f4bdf672bb6b7f03cd51f96b1ef93bcc8cc4884b5b525580ab2a8f"` [INFO] [stdout] 6fdd3493e1f4bdf672bb6b7f03cd51f96b1ef93bcc8cc4884b5b525580ab2a8f