[INFO] crate dns-lookup 1.0.2 is already in cache
[INFO] checking dns-lookup-1.0.2 against try#d7b51666469c792a8a3f40849607739bae1e705e for pr-71665
[INFO] extracting crate dns-lookup 1.0.2 into /workspace/builds/worker-8/source
[INFO] validating manifest of crates.io crate dns-lookup 1.0.2 on toolchain d7b51666469c792a8a3f40849607739bae1e705e
[INFO] running `"/workspace/cargo-home/bin/cargo" "+d7b51666469c792a8a3f40849607739bae1e705e" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking crates.io crate dns-lookup 1.0.2
[INFO] finished tweaking crates.io crate dns-lookup 1.0.2
[INFO] tweaked toml for crates.io crate dns-lookup 1.0.2 written to /workspace/builds/worker-8/source/Cargo.toml
[INFO] running `"/workspace/cargo-home/bin/cargo" "+d7b51666469c792a8a3f40849607739bae1e705e" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/workspace/cargo-home/bin/cargo" "+d7b51666469c792a8a3f40849607739bae1e705e" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+d7b51666469c792a8a3f40849607739bae1e705e" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] 80875473b0c896a1ff6abce684ecc18be050c4901ffbf098693bc939569e441e
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `"docker" "start" "-a" "80875473b0c896a1ff6abce684ecc18be050c4901ffbf098693bc939569e441e"`
[INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling libc v0.2.69
[INFO] [stderr]     Checking cfg-if v0.1.10
[INFO] [stderr]     Checking socket2 v0.3.12
[INFO] [stderr]     Checking dns-lookup v1.0.2 (/opt/rustwide/workdir)
[INFO] [stderr] warning: the item `libc` is imported redundantly
[INFO] [stderr]   --> src/lookup.rs:30:13
[INFO] [stderr]    |
[INFO] [stderr] 30 |         use libc;
[INFO] [stderr]    |             ^^^^
[INFO] [stderr]    | 
[INFO] [stderr]   ::: src/lib.rs:80:14
[INFO] [stderr]    |
[INFO] [stderr] 80 | #[cfg(unix)] extern crate libc;
[INFO] [stderr]    |              ------------------ the item `libc` is already imported here
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: the item `libc` is imported redundantly
[INFO] [stderr]   --> src/lookup.rs:56:11
[INFO] [stderr]    |
[INFO] [stderr] 56 |       use libc;
[INFO] [stderr]    |           ^^^^
[INFO] [stderr]    | 
[INFO] [stderr]   ::: src/lib.rs:80:14
[INFO] [stderr]    |
[INFO] [stderr] 80 | #[cfg(unix)] extern crate libc;
[INFO] [stderr]    |              ------------------ the item `libc` is already imported here
[INFO] [stderr] 
[INFO] [stderr] warning: the item `libc` is imported redundantly
[INFO] [stderr]   --> src/lookup.rs:30:13
[INFO] [stderr]    |
[INFO] [stderr] 30 |         use libc;
[INFO] [stderr]    |             ^^^^
[INFO] [stderr]    | 
[INFO] [stderr]   ::: src/lib.rs:80:14
[INFO] [stderr]    |
[INFO] [stderr] 80 | #[cfg(unix)] extern crate libc;
[INFO] [stderr]    |              ------------------ the item `libc` is already imported here
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: the item `libc` is imported redundantly
[INFO] [stderr]   --> src/lookup.rs:56:11
[INFO] [stderr]    |
[INFO] [stderr] 56 |       use libc;
[INFO] [stderr]    |           ^^^^
[INFO] [stderr]    | 
[INFO] [stderr]   ::: src/lib.rs:80:14
[INFO] [stderr]    |
[INFO] [stderr] 80 | #[cfg(unix)] extern crate libc;
[INFO] [stderr]    |              ------------------ the item `libc` is already imported here
[INFO] [stderr] 
[INFO] [stderr] warning: 2 warnings emitted
[INFO] [stderr] 
[INFO] [stderr] warning: 2 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 3.35s
[INFO] running `"docker" "inspect" "80875473b0c896a1ff6abce684ecc18be050c4901ffbf098693bc939569e441e"`
[INFO] running `"docker" "rm" "-f" "80875473b0c896a1ff6abce684ecc18be050c4901ffbf098693bc939569e441e"`
[INFO] [stdout] 80875473b0c896a1ff6abce684ecc18be050c4901ffbf098693bc939569e441e