[INFO] fetching crate single-use-dns 0.1.0...
[INFO] checking single-use-dns-0.1.0 against try#3e22d1f9053c0fc87629b3c6d5d9567856368e5d for pr-78714
[INFO] extracting crate single-use-dns 0.1.0 into /workspace/builds/worker-4/source
[INFO] validating manifest of crates.io crate single-use-dns 0.1.0 on toolchain 3e22d1f9053c0fc87629b3c6d5d9567856368e5d
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+3e22d1f9053c0fc87629b3c6d5d9567856368e5d" "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-4/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" "+3e22d1f9053c0fc87629b3c6d5d9567856368e5d" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded thiserror v1.0.11
[INFO] [stderr]   Downloaded serde v1.0.105
[INFO] [stderr]   Downloaded regex v1.3.5
[INFO] [stderr]   Downloaded serde_derive v1.0.105
[INFO] [stderr]   Downloaded data-encoding v2.2.0
[INFO] [stderr]   Downloaded trust-dns-client v0.19.3
[INFO] [stderr]   Downloaded proc-macro-hack v0.5.12
[INFO] [stderr]   Downloaded async-trait v0.1.24
[INFO] [stderr]   Downloaded tokio v0.2.13
[INFO] [stderr]   Downloaded trust-dns-server v0.19.3
[INFO] [stderr]   Downloaded trust-dns-proto v0.19.3
[INFO] [stderr]   Downloaded thiserror-impl v1.0.11
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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@sha256:6eabd152ff4036248d66efda456a36cb33d24b7291b33f25f75140726c88da35" "/opt/rustwide/cargo-home/bin/cargo" "+3e22d1f9053c0fc87629b3c6d5d9567856368e5d" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 72c21aa075fd480f2a919749dafa47a328f94501c3d1f42c3ca4893e910b4085
[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" "72c21aa075fd480f2a919749dafa47a328f94501c3d1f42c3ca4893e910b4085", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "72c21aa075fd480f2a919749dafa47a328f94501c3d1f42c3ca4893e910b4085", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "72c21aa075fd480f2a919749dafa47a328f94501c3d1f42c3ca4893e910b4085", kill_on_drop: false }`
[INFO] [stdout] 72c21aa075fd480f2a919749dafa47a328f94501c3d1f42c3ca4893e910b4085
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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@sha256:6eabd152ff4036248d66efda456a36cb33d24b7291b33f25f75140726c88da35" "/opt/rustwide/cargo-home/bin/cargo" "+3e22d1f9053c0fc87629b3c6d5d9567856368e5d" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 5569b14a625052a3bf55aba98e1f8f442a65ff0943d3794e9b76f8c9743bb5ac
[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" "5569b14a625052a3bf55aba98e1f8f442a65ff0943d3794e9b76f8c9743bb5ac", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v1.0.16
[INFO] [stderr]    Compiling serde v1.0.105
[INFO] [stderr]    Compiling backtrace-sys v0.1.34
[INFO] [stderr]     Checking futures-channel v0.3.4
[INFO] [stderr]     Checking regex v1.3.5
[INFO] [stderr]     Checking mio v0.6.21
[INFO] [stderr]     Checking tokio v0.2.13
[INFO] [stderr]     Checking backtrace v0.3.45
[INFO] [stderr]     Checking 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 proc-macro-error-attr v0.4.11
[INFO] [stderr]    Compiling async-trait v0.1.24
[INFO] [stderr]    Compiling serde_derive v1.0.105
[INFO] [stderr]    Compiling enum-as-inner v0.3.2
[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]     Checking thiserror v1.0.11
[INFO] [stderr]     Checking futures-util v0.3.4
[INFO] [stderr]     Checking structopt v0.3.12
[INFO] [stderr]     Checking futures-executor v0.3.4
[INFO] [stderr]     Checking futures v0.3.4
[INFO] [stderr]     Checking trust-dns-proto v0.19.3
[INFO] [stderr]     Checking trust-dns-client v0.19.3
[INFO] [stderr]     Checking toml v0.5.6
[INFO] [stderr]     Checking trust-dns-server v0.19.3
[INFO] [stderr]     Checking single-use-dns v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 50.06s
[INFO] running `Command { std: "docker" "inspect" "5569b14a625052a3bf55aba98e1f8f442a65ff0943d3794e9b76f8c9743bb5ac", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5569b14a625052a3bf55aba98e1f8f442a65ff0943d3794e9b76f8c9743bb5ac", kill_on_drop: false }`
[INFO] [stdout] 5569b14a625052a3bf55aba98e1f8f442a65ff0943d3794e9b76f8c9743bb5ac