[INFO] fetching crate single-use-dns 0.1.0...
[INFO] testing single-use-dns-0.1.0 against 1.49.0 for beta-1.50-1
[INFO] extracting crate single-use-dns 0.1.0 into /workspace/builds/worker-2/source
[INFO] validating manifest of crates.io crate single-use-dns 0.1.0 on toolchain 1.49.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.49.0" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate single-use-dns 0.1.0
[INFO] finished tweaking crates.io crate single-use-dns 0.1.0
[INFO] tweaked toml for crates.io crate single-use-dns 0.1.0 written to /workspace/builds/worker-2/source/Cargo.toml
[INFO] crate crates.io crate single-use-dns 0.1.0 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.49.0" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+1.49.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] b83c42b6ad8b39d4853663adbbf369bdc0c5094a8ea8a11df1ee44bebd071ef7
[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" "b83c42b6ad8b39d4853663adbbf369bdc0c5094a8ea8a11df1ee44bebd071ef7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "b83c42b6ad8b39d4853663adbbf369bdc0c5094a8ea8a11df1ee44bebd071ef7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b83c42b6ad8b39d4853663adbbf369bdc0c5094a8ea8a11df1ee44bebd071ef7", kill_on_drop: false }`
[INFO] [stdout] b83c42b6ad8b39d4853663adbbf369bdc0c5094a8ea8a11df1ee44bebd071ef7
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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=warn" "-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:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+1.49.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] b499d734a3cc24182c4bb935e44167429d8dad517814bd89935f60e10cce2fbe
[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" "b499d734a3cc24182c4bb935e44167429d8dad517814bd89935f60e10cce2fbe", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v1.0.16
[INFO] [stderr]    Compiling futures-sink v0.3.4
[INFO] [stderr]    Compiling futures-task v0.3.4
[INFO] [stderr]    Compiling smallvec v1.2.0
[INFO] [stderr]    Compiling futures-io v0.3.4
[INFO] [stderr]    Compiling serde v1.0.105
[INFO] [stderr]    Compiling data-encoding v2.2.0
[INFO] [stderr]    Compiling regex-syntax v0.6.17
[INFO] [stderr]    Compiling backtrace-sys v0.1.34
[INFO] [stderr]    Compiling getrandom v0.1.14
[INFO] [stderr]    Compiling iovec v0.1.4
[INFO] [stderr]    Compiling net2 v0.2.33
[INFO] [stderr]    Compiling futures-channel v0.3.4
[INFO] [stderr]    Compiling rand_core v0.5.1
[INFO] [stderr]    Compiling unicode-normalization v0.1.12
[INFO] [stderr]    Compiling mio v0.6.21
[INFO] [stderr]    Compiling rand_chacha v0.2.2
[INFO] [stderr]    Compiling idna v0.2.0
[INFO] [stderr]    Compiling rand v0.7.3
[INFO] [stderr]    Compiling backtrace v0.3.45
[INFO] [stderr]    Compiling tokio v0.2.13
[INFO] [stderr]    Compiling url v2.1.1
[INFO] [stderr]    Compiling regex v1.3.5
[INFO] [stderr]    Compiling env_logger v0.7.1
[INFO] [stderr]    Compiling syn-mid v0.5.0
[INFO] [stderr]    Compiling proc-macro-hack v0.5.12
[INFO] [stderr]    Compiling thiserror-impl v1.0.11
[INFO] [stderr]    Compiling serde_derive v1.0.105
[INFO] [stderr]    Compiling async-trait v0.1.24
[INFO] [stderr]    Compiling enum-as-inner v0.3.2
[INFO] [stderr]    Compiling proc-macro-error-attr v0.4.11
[INFO] [stderr]    Compiling proc-macro-error v0.4.11
[INFO] [stderr]    Compiling futures-macro v0.3.4
[INFO] [stderr]    Compiling structopt-derive v0.4.5
[INFO] [stderr]    Compiling thiserror v1.0.11
[INFO] [stderr]    Compiling futures-util v0.3.4
[INFO] [stderr]    Compiling structopt v0.3.12
[INFO] [stderr]    Compiling futures-executor v0.3.4
[INFO] [stderr]    Compiling futures v0.3.4
[INFO] [stderr]    Compiling trust-dns-proto v0.19.3
[INFO] [stderr]    Compiling trust-dns-client v0.19.3
[INFO] [stderr]    Compiling toml v0.5.6
[INFO] [stderr]    Compiling trust-dns-server v0.19.3
[INFO] [stderr]    Compiling single-use-dns v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1m 31s
[INFO] running `Command { std: "docker" "inspect" "b499d734a3cc24182c4bb935e44167429d8dad517814bd89935f60e10cce2fbe", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b499d734a3cc24182c4bb935e44167429d8dad517814bd89935f60e10cce2fbe", kill_on_drop: false }`
[INFO] [stdout] b499d734a3cc24182c4bb935e44167429d8dad517814bd89935f60e10cce2fbe
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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=warn" "-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:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+1.49.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] d4ed33d9a5b2dbee552c349952f459e5fd8c979834651ce2fe62efdb9013cbe5
[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" "d4ed33d9a5b2dbee552c349952f459e5fd8c979834651ce2fe62efdb9013cbe5", kill_on_drop: false }`
[INFO] [stderr]    Compiling single-use-dns v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 1.26s
[INFO] running `Command { std: "docker" "inspect" "d4ed33d9a5b2dbee552c349952f459e5fd8c979834651ce2fe62efdb9013cbe5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d4ed33d9a5b2dbee552c349952f459e5fd8c979834651ce2fe62efdb9013cbe5", kill_on_drop: false }`
[INFO] [stdout] d4ed33d9a5b2dbee552c349952f459e5fd8c979834651ce2fe62efdb9013cbe5
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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=warn" "-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:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+1.49.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 8455236bcca4c7573467551f856b420248ac2d479f1a30d0866a0fa3f68ec842
[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" "8455236bcca4c7573467551f856b420248ac2d479f1a30d0866a0fa3f68ec842", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.09s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/single_use_dns-ff42eb7ff96ff546
[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 `Command { std: "docker" "inspect" "8455236bcca4c7573467551f856b420248ac2d479f1a30d0866a0fa3f68ec842", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8455236bcca4c7573467551f856b420248ac2d479f1a30d0866a0fa3f68ec842", kill_on_drop: false }`
[INFO] [stdout] 8455236bcca4c7573467551f856b420248ac2d479f1a30d0866a0fa3f68ec842