[INFO] fetching crate netmap_sys 0.1.4...
[INFO] checking netmap_sys-0.1.4 against master#a5f164faad4a2fed606b8160fd7ecd2d5cbba381 for pr-84920
[INFO] extracting crate netmap_sys 0.1.4 into /workspace/builds/worker-6/source
[INFO] validating manifest of crates.io crate netmap_sys 0.1.4 on toolchain a5f164faad4a2fed606b8160fd7ecd2d5cbba381
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a5f164faad4a2fed606b8160fd7ecd2d5cbba381" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate netmap_sys 0.1.4
[INFO] finished tweaking crates.io crate netmap_sys 0.1.4
[INFO] tweaked toml for crates.io crate netmap_sys 0.1.4 written to /workspace/builds/worker-6/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a5f164faad4a2fed606b8160fd7ecd2d5cbba381" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a5f164faad4a2fed606b8160fd7ecd2d5cbba381" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+a5f164faad4a2fed606b8160fd7ecd2d5cbba381" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 0a0840a64d2636f650c8140b5f2449b0bd7e32f5b60801094e528507beab26f1
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "0a0840a64d2636f650c8140b5f2449b0bd7e32f5b60801094e528507beab26f1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "0a0840a64d2636f650c8140b5f2449b0bd7e32f5b60801094e528507beab26f1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0a0840a64d2636f650c8140b5f2449b0bd7e32f5b60801094e528507beab26f1", kill_on_drop: false }`
[INFO] [stdout] 0a0840a64d2636f650c8140b5f2449b0bd7e32f5b60801094e528507beab26f1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+a5f164faad4a2fed606b8160fd7ecd2d5cbba381" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 09b8e3e6a2f8d5fff1f40c383d292ee36dbbd0453dde0ba0cb0fadf9075a4765
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "09b8e3e6a2f8d5fff1f40c383d292ee36dbbd0453dde0ba0cb0fadf9075a4765", kill_on_drop: false }`
[INFO] [stderr]    Compiling cc v1.0.67
[INFO] [stderr]    Compiling libc v0.2.94
[INFO] [stderr]    Compiling netmap_sys v0.1.4 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unnecessary parentheses around assigned value
[INFO] [stdout]   --> src/netmap.rs:28:33
[INFO] [stdout]    |
[INFO] [stdout] 28 | pub const NS_PORT_MASK: c_int = (0xff << NS_PORT_SHIFT);
[INFO] [stdout]    |                                 ^^^^^^^^^^^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_parens)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around block return value
[INFO] [stdout]   --> src/netmap_user.rs:44:5
[INFO] [stdout]    |
[INFO] [stdout] 44 | /     ((buf as *mut c_char).offset( -((ring as *mut c_char) as isize) )
[INFO] [stdout] 45 | |                          .offset((*ring).buf_ofs as isize) as usize / (*ring).nr_buf_size as usize)
[INFO] [stdout]    | |___________________________________________________________________________________________________^
[INFO] [stdout]    |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout] 44 |     (buf as *mut c_char).offset( -((ring as *mut c_char) as isize) )
[INFO] [stdout] 45 |                          .offset((*ring).buf_ofs as isize) as usize / (*ring).nr_buf_size as usize
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around assigned value
[INFO] [stdout]   --> src/netmap.rs:28:33
[INFO] [stdout]    |
[INFO] [stdout] 28 | pub const NS_PORT_MASK: c_int = (0xff << NS_PORT_SHIFT);
[INFO] [stdout]    |                                 ^^^^^^^^^^^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_parens)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around block return value
[INFO] [stdout]   --> src/netmap_user.rs:44:5
[INFO] [stdout]    |
[INFO] [stdout] 44 | /     ((buf as *mut c_char).offset( -((ring as *mut c_char) as isize) )
[INFO] [stdout] 45 | |                          .offset((*ring).buf_ofs as isize) as usize / (*ring).nr_buf_size as usize)
[INFO] [stdout]    | |___________________________________________________________________________________________________^
[INFO] [stdout]    |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout] 44 |     (buf as *mut c_char).offset( -((ring as *mut c_char) as isize) )
[INFO] [stdout] 45 |                          .offset((*ring).buf_ofs as isize) as usize / (*ring).nr_buf_size as usize
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 5.81s
[INFO] running `Command { std: "docker" "inspect" "09b8e3e6a2f8d5fff1f40c383d292ee36dbbd0453dde0ba0cb0fadf9075a4765", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "09b8e3e6a2f8d5fff1f40c383d292ee36dbbd0453dde0ba0cb0fadf9075a4765", kill_on_drop: false }`
[INFO] [stdout] 09b8e3e6a2f8d5fff1f40c383d292ee36dbbd0453dde0ba0cb0fadf9075a4765