[INFO] fetching crate dns-lookup 1.0.3...
[INFO] checking dns-lookup-1.0.3 against master#da897dfb6daa268a965d2d73620316ba56020a19 for pr-76219
[INFO] extracting crate dns-lookup 1.0.3 into /workspace/builds/worker-8/source
[INFO] validating manifest of crates.io crate dns-lookup 1.0.3 on toolchain da897dfb6daa268a965d2d73620316ba56020a19
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+da897dfb6daa268a965d2d73620316ba56020a19" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate dns-lookup 1.0.3
[INFO] finished tweaking crates.io crate dns-lookup 1.0.3
[INFO] tweaked toml for crates.io crate dns-lookup 1.0.3 written to /workspace/builds/worker-8/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+da897dfb6daa268a965d2d73620316ba56020a19" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+da897dfb6daa268a965d2d73620316ba56020a19" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "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" "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" "rustops/crates-build-env@sha256:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+da897dfb6daa268a965d2d73620316ba56020a19" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 84097495733b563793858e60273e42a71ad0999cc1988940e145707b746e71f5
[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" "84097495733b563793858e60273e42a71ad0999cc1988940e145707b746e71f5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "84097495733b563793858e60273e42a71ad0999cc1988940e145707b746e71f5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "84097495733b563793858e60273e42a71ad0999cc1988940e145707b746e71f5", kill_on_drop: false }`
[INFO] [stdout] 84097495733b563793858e60273e42a71ad0999cc1988940e145707b746e71f5
[INFO] running `Command { std: "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" "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" "rustops/crates-build-env@sha256:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+da897dfb6daa268a965d2d73620316ba56020a19" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 13933b02f1d8dee2dc0385a0195d2624c2c94585744acd9326d5e7fe511e532e
[INFO] running `Command { std: "docker" "start" "-a" "13933b02f1d8dee2dc0385a0195d2624c2c94585744acd9326d5e7fe511e532e", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.76
[INFO] [stderr]     Checking socket2 v0.3.12
[INFO] [stderr]     Checking dns-lookup v1.0.3 (/opt/rustwide/workdir)
[INFO] [stdout] warning: the item `libc` is imported redundantly
[INFO] [stdout]   --> src/lookup.rs:30:13
[INFO] [stdout]    |
[INFO] [stdout] 30 |         use libc;
[INFO] [stdout]    |             ^^^^
[INFO] [stdout]    | 
[INFO] [stdout]   ::: src/lib.rs:80:14
[INFO] [stdout]    |
[INFO] [stdout] 80 | #[cfg(unix)] extern crate libc;
[INFO] [stdout]    |              ------------------ the item `libc` is already imported here
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `libc` is imported redundantly
[INFO] [stdout]   --> src/lookup.rs:56:11
[INFO] [stdout]    |
[INFO] [stdout] 56 |       use libc;
[INFO] [stdout]    |           ^^^^
[INFO] [stdout]    | 
[INFO] [stdout]   ::: src/lib.rs:80:14
[INFO] [stdout]    |
[INFO] [stdout] 80 | #[cfg(unix)] extern crate libc;
[INFO] [stdout]    |              ------------------ the item `libc` is already imported here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `libc` is imported redundantly
[INFO] [stdout]   --> src/lookup.rs:30:13
[INFO] [stdout]    |
[INFO] [stdout] 30 |         use libc;
[INFO] [stdout]    |             ^^^^
[INFO] [stdout]    | 
[INFO] [stdout]   ::: src/lib.rs:80:14
[INFO] [stdout]    |
[INFO] [stdout] 80 | #[cfg(unix)] extern crate libc;
[INFO] [stdout]    |              ------------------ the item `libc` is already imported here
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `libc` is imported redundantly
[INFO] [stdout]   --> src/lookup.rs:56:11
[INFO] [stdout]    |
[INFO] [stdout] 56 |       use libc;
[INFO] [stdout]    |           ^^^^
[INFO] [stdout]    | 
[INFO] [stdout]   ::: src/lib.rs:80:14
[INFO] [stdout]    |
[INFO] [stdout] 80 | #[cfg(unix)] extern crate libc;
[INFO] [stdout]    |              ------------------ the item `libc` is already imported here
[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 3.36s
[INFO] running `Command { std: "docker" "inspect" "13933b02f1d8dee2dc0385a0195d2624c2c94585744acd9326d5e7fe511e532e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "13933b02f1d8dee2dc0385a0195d2624c2c94585744acd9326d5e7fe511e532e", kill_on_drop: false }`
[INFO] [stdout] 13933b02f1d8dee2dc0385a0195d2624c2c94585744acd9326d5e7fe511e532e