[INFO] crate dns-lookup 1.0.1 is already in cache
[INFO] extracting crate dns-lookup 1.0.1 into work/ex/beta-1.37-6/sources/1.36.0/reg/dns-lookup/1.0.1
[INFO] extracting crate dns-lookup 1.0.1 into work/ex/beta-1.37-6/sources/beta-2019-07-23/reg/dns-lookup/1.0.1
[INFO] validating manifest of dns-lookup-1.0.1 on toolchain 1.36.0
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.36.0" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of dns-lookup-1.0.1 on toolchain beta-2019-07-23
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-07-23" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing dns-lookup-1.0.1
[INFO] finished frobbing dns-lookup-1.0.1
[INFO] frobbed toml for dns-lookup-1.0.1 written to work/ex/beta-1.37-6/sources/1.36.0/reg/dns-lookup/1.0.1/Cargo.toml
[INFO] started frobbing dns-lookup-1.0.1
[INFO] finished frobbing dns-lookup-1.0.1
[INFO] frobbed toml for dns-lookup-1.0.1 written to work/ex/beta-1.37-6/sources/beta-2019-07-23/reg/dns-lookup/1.0.1/Cargo.toml
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.36.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-07-23" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.36.0" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-07-23" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] testing dns-lookup-1.0.1 against 1.36.0 for beta-1.37-6
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-7/1.36.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/1.36.0/reg/dns-lookup/1.0.1:/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=warn" "-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" "+1.36.0" "build" "--frozen"`
[INFO] [stdout] 53efd1d4923696b76b535a56564df198c088bb78c8af9919758b8d2198565b65
[INFO] running `"docker" "start" "-a" "53efd1d4923696b76b535a56564df198c088bb78c8af9919758b8d2198565b65"`
[INFO] [stderr]    Compiling dns-lookup v1.0.1 (/opt/crater/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]     Finished dev [unoptimized + debuginfo] target(s) in 0.55s
[INFO] running `"docker" "inspect" "53efd1d4923696b76b535a56564df198c088bb78c8af9919758b8d2198565b65"`
[INFO] running `"docker" "rm" "-f" "53efd1d4923696b76b535a56564df198c088bb78c8af9919758b8d2198565b65"`
[INFO] [stdout] 53efd1d4923696b76b535a56564df198c088bb78c8af9919758b8d2198565b65
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-7/1.36.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/1.36.0/reg/dns-lookup/1.0.1:/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=warn" "-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" "+1.36.0" "test" "--frozen" "--no-run"`
[INFO] [stdout] 752dd08957d8804e17b49962b4b445523c1359ee8ce78115beae0458eef37edd
[INFO] running `"docker" "start" "-a" "752dd08957d8804e17b49962b4b445523c1359ee8ce78115beae0458eef37edd"`
[INFO] [stderr]    Compiling dns-lookup v1.0.1 (/opt/crater/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]     Finished dev [unoptimized + debuginfo] target(s) in 0.94s
[INFO] running `"docker" "inspect" "752dd08957d8804e17b49962b4b445523c1359ee8ce78115beae0458eef37edd"`
[INFO] running `"docker" "rm" "-f" "752dd08957d8804e17b49962b4b445523c1359ee8ce78115beae0458eef37edd"`
[INFO] [stdout] 752dd08957d8804e17b49962b4b445523c1359ee8ce78115beae0458eef37edd
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-7/1.36.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/1.36.0/reg/dns-lookup/1.0.1:/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=warn" "-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" "+1.36.0" "test" "--frozen"`
[INFO] [stdout] e66dbc98ab94f9e8226e18a95edd93b78264fe0f823e33751811cd77f93aa834
[INFO] running `"docker" "start" "-a" "e66dbc98ab94f9e8226e18a95edd93b78264fe0f823e33751811cd77f93aa834"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/dns_lookup-323629d924d0e9af
[INFO] [stdout] 
[INFO] [stdout] running 4 tests
[INFO] [stdout] test hostname::test_get_hostname ... ok
[INFO] [stdout] test lookup::test_localhost ... ok
[INFO] [stdout] test nameinfo::test_getnameinfo ... ok
[INFO] [stdout] test lookup::test_rev_localhost ... ok
[INFO] [stderr]    Doc-tests dns-lookup
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 4 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 4 tests
[INFO] [stdout] test src/lib.rs -  (line 60) ... ok
[INFO] [stdout] test src/lib.rs -  (line 36) ... ok
[INFO] [stdout] test src/lib.rs -  (line 26) ... ok
[INFO] [stdout] test src/lib.rs -  (line 13) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 4 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] running `"docker" "inspect" "e66dbc98ab94f9e8226e18a95edd93b78264fe0f823e33751811cd77f93aa834"`
[INFO] running `"docker" "rm" "-f" "e66dbc98ab94f9e8226e18a95edd93b78264fe0f823e33751811cd77f93aa834"`
[INFO] [stdout] e66dbc98ab94f9e8226e18a95edd93b78264fe0f823e33751811cd77f93aa834