[INFO] fetching crate xdpsock-ffi 0.1.0...
[INFO] checking xdpsock-ffi-0.1.0 against master#dfd7b8d03fb93d0e03147d28b3be6d93260fa94d for pr-87050
[INFO] extracting crate xdpsock-ffi 0.1.0 into /workspace/builds/worker-4/source
[INFO] validating manifest of crates.io crate xdpsock-ffi 0.1.0 on toolchain dfd7b8d03fb93d0e03147d28b3be6d93260fa94d
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+dfd7b8d03fb93d0e03147d28b3be6d93260fa94d" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate xdpsock-ffi 0.1.0
[INFO] finished tweaking crates.io crate xdpsock-ffi 0.1.0
[INFO] tweaked toml for crates.io crate xdpsock-ffi 0.1.0 written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+dfd7b8d03fb93d0e03147d28b3be6d93260fa94d" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+dfd7b8d03fb93d0e03147d28b3be6d93260fa94d" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+dfd7b8d03fb93d0e03147d28b3be6d93260fa94d" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] ca7a50bece507cfa8d9ad0bb746318310b5c7a83db589dc8178442a865db770c
[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" "ca7a50bece507cfa8d9ad0bb746318310b5c7a83db589dc8178442a865db770c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "ca7a50bece507cfa8d9ad0bb746318310b5c7a83db589dc8178442a865db770c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ca7a50bece507cfa8d9ad0bb746318310b5c7a83db589dc8178442a865db770c", kill_on_drop: false }`
[INFO] [stdout] ca7a50bece507cfa8d9ad0bb746318310b5c7a83db589dc8178442a865db770c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+dfd7b8d03fb93d0e03147d28b3be6d93260fa94d" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 7d118033ca899db357eed4a3d1d31f119c50948a620dd67bef028eca5962b6f5
[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" "7d118033ca899db357eed4a3d1d31f119c50948a620dd67bef028eca5962b6f5", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling libc v0.2.98
[INFO] [stderr]    Compiling cc v1.0.69
[INFO] [stderr]     Checking cfg-if v1.0.0
[INFO] [stderr]    Compiling crossbeam-utils v0.8.5
[INFO] [stderr]    Compiling bitflags v1.2.1
[INFO] [stderr]     Checking lazy_static v1.4.0
[INFO] [stderr]    Compiling log v0.4.14
[INFO] [stderr]     Checking byteorder v1.4.3
[INFO] [stderr]     Checking etherparse v0.9.0
[INFO] [stderr]     Checking crossbeam-channel v0.5.1
[INFO] [stderr]    Compiling libbpf-sys v0.3.0-2
[INFO] [stderr]     Checking num_cpus v1.13.0
[INFO] [stderr]     Checking errno v0.2.7
[INFO] [stderr]     Checking core_affinity v0.5.10
[INFO] [stderr]     Checking xdpsock v0.1.0
[INFO] [stderr]     Checking xdpsock-ffi v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused imports: `SocketConfig`, `UmemConfig`
[INFO] [stdout]  --> src/lib.rs:2:25
[INFO] [stdout]   |
[INFO] [stdout] 2 |     socket::{BindFlags, SocketConfig, SocketConfigBuilder, XdpFlags},
[INFO] [stdout]   |                         ^^^^^^^^^^^^
[INFO] [stdout] 3 |     umem::{UmemConfig, UmemConfigBuilder},
[INFO] [stdout]   |            ^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `SocketConfig`, `UmemConfig`
[INFO] [stdout]  --> src/lib.rs:2:25
[INFO] [stdout]   |
[INFO] [stdout] 2 |     socket::{BindFlags, SocketConfig, SocketConfigBuilder, XdpFlags},
[INFO] [stdout]   |                         ^^^^^^^^^^^^
[INFO] [stdout] 3 |     umem::{UmemConfig, UmemConfigBuilder},
[INFO] [stdout]   |            ^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/lib.rs:37:9
[INFO] [stdout]    |
[INFO] [stdout] 37 |     let mut xsk = Xsk2::new(&ifname, 0, umem_config, socket_config, n_tx_frames as usize);
[INFO] [stdout]    |         ----^^^
[INFO] [stdout]    |         |
[INFO] [stdout]    |         help: remove this `mut`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/lib.rs:37:9
[INFO] [stdout]    |
[INFO] [stdout] 37 |     let mut xsk = Xsk2::new(&ifname, 0, umem_config, socket_config, n_tx_frames as usize);
[INFO] [stdout]    |         ----^^^
[INFO] [stdout]    |         |
[INFO] [stdout]    |         help: remove this `mut`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/lib.rs:81:9
[INFO] [stdout]    |
[INFO] [stdout] 81 |     let mut pkt = unsafe {
[INFO] [stdout]    |         ----^^^
[INFO] [stdout]    |         |
[INFO] [stdout]    |         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/lib.rs:81:9
[INFO] [stdout]    |
[INFO] [stdout] 81 |     let mut pkt = unsafe {
[INFO] [stdout]    |         ----^^^
[INFO] [stdout]    |         |
[INFO] [stdout]    |         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 15.60s
[INFO] running `Command { std: "docker" "inspect" "7d118033ca899db357eed4a3d1d31f119c50948a620dd67bef028eca5962b6f5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7d118033ca899db357eed4a3d1d31f119c50948a620dd67bef028eca5962b6f5", kill_on_drop: false }`
[INFO] [stdout] 7d118033ca899db357eed4a3d1d31f119c50948a620dd67bef028eca5962b6f5