[INFO] crate ns-dns-tokio 0.4.0 is already in cache
[INFO] extracting crate ns-dns-tokio 0.4.0 into work/ex/beta-1.38-1/sources/1.37.0/reg/ns-dns-tokio/0.4.0
[INFO] extracting crate ns-dns-tokio 0.4.0 into work/ex/beta-1.38-1/sources/beta-2019-08-13/reg/ns-dns-tokio/0.4.0
[INFO] validating manifest of ns-dns-tokio-0.4.0 on toolchain 1.37.0
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.37.0" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of ns-dns-tokio-0.4.0 on toolchain beta-2019-08-13
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-08-13" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing ns-dns-tokio-0.4.0
[INFO] finished frobbing ns-dns-tokio-0.4.0
[INFO] frobbed toml for ns-dns-tokio-0.4.0 written to work/ex/beta-1.38-1/sources/1.37.0/reg/ns-dns-tokio/0.4.0/Cargo.toml
[INFO] started frobbing ns-dns-tokio-0.4.0
[INFO] finished frobbing ns-dns-tokio-0.4.0
[INFO] frobbed toml for ns-dns-tokio-0.4.0 written to work/ex/beta-1.38-1/sources/beta-2019-08-13/reg/ns-dns-tokio/0.4.0/Cargo.toml
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.37.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-08-13" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.37.0" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-08-13" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] testing ns-dns-tokio-0.4.0 against 1.37.0 for beta-1.38-1
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-7/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/reg/ns-dns-tokio/0.4.0:/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" "+1.37.0" "build" "--frozen"`
[INFO] [stdout] a242cd22cb4348672ba929f0ecd89dc5f7e64b406b2fe593e0b9d9bec1a09c26
[INFO] running `"docker" "start" "-a" "a242cd22cb4348672ba929f0ecd89dc5f7e64b406b2fe593e0b9d9bec1a09c26"`
[INFO] [stderr]    Compiling abstract-ns v0.4.3
[INFO] [stderr]    Compiling domain v0.2.4
[INFO] [stderr]    Compiling ns-dns-tokio v0.4.0 (/opt/crater/workdir)
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/lib.rs:101:66
[INFO] [stderr]     |
[INFO] [stderr] 101 |     pub fn system_config(lp: &Handle) -> Result<DnsResolver, Box<StdError>> {
[INFO] [stderr]     |                                                                  ^^^^^^^^ help: use `dyn`: `dyn StdError`
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(bare_trait_objects)] on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 9.47s
[INFO] running `"docker" "inspect" "a242cd22cb4348672ba929f0ecd89dc5f7e64b406b2fe593e0b9d9bec1a09c26"`
[INFO] running `"docker" "rm" "-f" "a242cd22cb4348672ba929f0ecd89dc5f7e64b406b2fe593e0b9d9bec1a09c26"`
[INFO] [stdout] a242cd22cb4348672ba929f0ecd89dc5f7e64b406b2fe593e0b9d9bec1a09c26
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-7/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/reg/ns-dns-tokio/0.4.0:/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" "+1.37.0" "test" "--frozen" "--no-run"`
[INFO] [stdout] 48ce906a1a709d06ae3c6ee7cdf4fcf1c9927337317171f877ce11768418a4e1
[INFO] running `"docker" "start" "-a" "48ce906a1a709d06ae3c6ee7cdf4fcf1c9927337317171f877ce11768418a4e1"`
[INFO] [stderr]    Compiling ns-dns-tokio v0.4.0 (/opt/crater/workdir)
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/lib.rs:101:66
[INFO] [stderr]     |
[INFO] [stderr] 101 |     pub fn system_config(lp: &Handle) -> Result<DnsResolver, Box<StdError>> {
[INFO] [stderr]     |                                                                  ^^^^^^^^ help: use `dyn`: `dyn StdError`
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(bare_trait_objects)] on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 3.65s
[INFO] running `"docker" "inspect" "48ce906a1a709d06ae3c6ee7cdf4fcf1c9927337317171f877ce11768418a4e1"`
[INFO] running `"docker" "rm" "-f" "48ce906a1a709d06ae3c6ee7cdf4fcf1c9927337317171f877ce11768418a4e1"`
[INFO] [stdout] 48ce906a1a709d06ae3c6ee7cdf4fcf1c9927337317171f877ce11768418a4e1
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-7/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/reg/ns-dns-tokio/0.4.0:/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" "+1.37.0" "test" "--frozen"`
[INFO] [stdout] 87ec1a99e38113c5fff8841daaddd18abdfb174fd9b8dad76c932f51edf2d72e
[INFO] running `"docker" "start" "-a" "87ec1a99e38113c5fff8841daaddd18abdfb174fd9b8dad76c932f51edf2d72e"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.08s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/ns_dns_tokio-8717bf276bf7291b
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests ns_dns_tokio
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] running `"docker" "inspect" "87ec1a99e38113c5fff8841daaddd18abdfb174fd9b8dad76c932f51edf2d72e"`
[INFO] running `"docker" "rm" "-f" "87ec1a99e38113c5fff8841daaddd18abdfb174fd9b8dad76c932f51edf2d72e"`
[INFO] [stdout] 87ec1a99e38113c5fff8841daaddd18abdfb174fd9b8dad76c932f51edf2d72e