[INFO] fetching crate single-use-dns 0.1.0...
[INFO] testing single-use-dns-0.1.0 against beta-2021-01-01 for beta-1.50-1
[INFO] extracting crate single-use-dns 0.1.0 into /workspace/builds/worker-8/source
[INFO] validating manifest of crates.io crate single-use-dns 0.1.0 on toolchain beta-2021-01-01
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-01-01" "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-8/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" "+beta-2021-01-01" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded proc-macro-hack v0.5.12
[INFO] [stderr]   Downloaded trust-dns-proto v0.19.3
[INFO] [stderr]   Downloaded trust-dns-client v0.19.3
[INFO] [stderr]   Downloaded backtrace-sys v0.1.34
[INFO] [stderr]   Downloaded trust-dns-server v0.19.3
[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:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-01-01" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 7d60b1624e138d07635c31db66e20868986f8d80711758af2884929ab7099b08
[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" "7d60b1624e138d07635c31db66e20868986f8d80711758af2884929ab7099b08", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "7d60b1624e138d07635c31db66e20868986f8d80711758af2884929ab7099b08", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7d60b1624e138d07635c31db66e20868986f8d80711758af2884929ab7099b08", kill_on_drop: false }`
[INFO] [stdout] 7d60b1624e138d07635c31db66e20868986f8d80711758af2884929ab7099b08
[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=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" "+beta-2021-01-01" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] b0e4c62733f6af5f8f8bbefc35e33743bff13a4584e4f4e533d5aa483851b00f
[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" "b0e4c62733f6af5f8f8bbefc35e33743bff13a4584e4f4e533d5aa483851b00f", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.9
[INFO] [stderr]    Compiling syn v1.0.16
[INFO] [stderr]    Compiling serde v1.0.105
[INFO] [stderr]    Compiling endian-type v0.1.2
[INFO] [stderr]    Compiling nibble_vec v0.0.4
[INFO] [stderr]    Compiling backtrace-sys v0.1.34
[INFO] [stderr]    Compiling proc-macro-error-attr v0.4.11
[INFO] [stderr]    Compiling proc-macro-error v0.4.11
[INFO] [stderr]    Compiling futures-channel v0.3.4
[INFO] [stderr]    Compiling net2 v0.2.33
[INFO] [stderr]    Compiling iovec v0.1.4
[INFO] [stderr]    Compiling time v0.1.42
[INFO] [stderr]    Compiling regex v1.3.5
[INFO] [stderr]    Compiling clap v2.33.0
[INFO] [stderr]    Compiling radix_trie v0.1.6
[INFO] [stderr]    Compiling mio v0.6.21
[INFO] [stderr]    Compiling chrono v0.4.11
[INFO] [stderr]    Compiling quote v1.0.3
[INFO] [stderr]    Compiling tokio v0.2.13
[INFO] [stderr]    Compiling backtrace v0.3.45
[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 enum-as-inner v0.3.2
[INFO] [stderr]    Compiling serde_derive v1.0.105
[INFO] [stderr]    Compiling async-trait v0.1.24
[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 23s
[INFO] running `Command { std: "docker" "inspect" "b0e4c62733f6af5f8f8bbefc35e33743bff13a4584e4f4e533d5aa483851b00f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b0e4c62733f6af5f8f8bbefc35e33743bff13a4584e4f4e533d5aa483851b00f", kill_on_drop: false }`
[INFO] [stdout] b0e4c62733f6af5f8f8bbefc35e33743bff13a4584e4f4e533d5aa483851b00f
[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=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" "+beta-2021-01-01" "test" "--frozen" "--no-run" "--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] c544a76664116d8e05d23de46f8241c8099ec75ac774f45ab9517a7ed42e03bf
[INFO] running `Command { std: "docker" "start" "-a" "c544a76664116d8e05d23de46f8241c8099ec75ac774f45ab9517a7ed42e03bf", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling single-use-dns v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 1.51s
[INFO] running `Command { std: "docker" "inspect" "c544a76664116d8e05d23de46f8241c8099ec75ac774f45ab9517a7ed42e03bf", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c544a76664116d8e05d23de46f8241c8099ec75ac774f45ab9517a7ed42e03bf", kill_on_drop: false }`
[INFO] [stdout] c544a76664116d8e05d23de46f8241c8099ec75ac774f45ab9517a7ed42e03bf
[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=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" "+beta-2021-01-01" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 610a95ca004124fec88d6e2d645e9ca75b81ca455762229e8876ca2f9b7ae8a9
[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" "610a95ca004124fec88d6e2d645e9ca75b81ca455762229e8876ca2f9b7ae8a9", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.12s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/single_use_dns-c6026a43f3e40093
[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; finished in 0.00s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "610a95ca004124fec88d6e2d645e9ca75b81ca455762229e8876ca2f9b7ae8a9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "610a95ca004124fec88d6e2d645e9ca75b81ca455762229e8876ca2f9b7ae8a9", kill_on_drop: false }`
[INFO] [stdout] 610a95ca004124fec88d6e2d645e9ca75b81ca455762229e8876ca2f9b7ae8a9