[INFO] fetching crate tokio-tun 0.3.1...
[INFO] testing tokio-tun-0.3.1 against 1.49.0 for beta-1.50-1
[INFO] extracting crate tokio-tun 0.3.1 into /workspace/builds/worker-0/source
[INFO] validating manifest of crates.io crate tokio-tun 0.3.1 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 tokio-tun 0.3.1
[INFO] finished tweaking crates.io crate tokio-tun 0.3.1
[INFO] tweaked toml for crates.io crate tokio-tun 0.3.1 written to /workspace/builds/worker-0/source/Cargo.toml
[INFO] crate crates.io crate tokio-tun 0.3.1 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] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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] 8686b550b909f1805ec98ecca58050c88f9ae2fd47039c3ce6985bc41ff802b2
[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" "8686b550b909f1805ec98ecca58050c88f9ae2fd47039c3ce6985bc41ff802b2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "8686b550b909f1805ec98ecca58050c88f9ae2fd47039c3ce6985bc41ff802b2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8686b550b909f1805ec98ecca58050c88f9ae2fd47039c3ce6985bc41ff802b2", kill_on_drop: false }`
[INFO] [stdout] 8686b550b909f1805ec98ecca58050c88f9ae2fd47039c3ce6985bc41ff802b2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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] b26ee85ee26199660a2efd5b0d3b80d79caf117cdaecd479f7135ec772e66369
[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" "b26ee85ee26199660a2efd5b0d3b80d79caf117cdaecd479f7135ec772e66369", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.81
[INFO] [stderr]    Compiling syn v1.0.56
[INFO] [stderr]    Compiling smallvec v1.5.1
[INFO] [stderr]    Compiling parking_lot_core v0.8.2
[INFO] [stderr]    Compiling mio v0.7.6
[INFO] [stderr]    Compiling num_cpus v1.13.0
[INFO] [stderr]    Compiling signal-hook-registry v1.3.0
[INFO] [stderr]    Compiling nix v0.19.1
[INFO] [stderr]    Compiling parking_lot v0.11.1
[INFO] [stderr]    Compiling tokio-macros v1.0.0
[INFO] [stderr]    Compiling tokio v1.0.1
[INFO] [stderr]    Compiling tokio-tun v0.3.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 28.59s
[INFO] running `Command { std: "docker" "inspect" "b26ee85ee26199660a2efd5b0d3b80d79caf117cdaecd479f7135ec772e66369", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b26ee85ee26199660a2efd5b0d3b80d79caf117cdaecd479f7135ec772e66369", kill_on_drop: false }`
[INFO] [stdout] b26ee85ee26199660a2efd5b0d3b80d79caf117cdaecd479f7135ec772e66369
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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] ce5c296bee858749fce3d9393e7fbeb19592b6e96d8d57434e77ea9052e5620e
[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" "ce5c296bee858749fce3d9393e7fbeb19592b6e96d8d57434e77ea9052e5620e", kill_on_drop: false }`
[INFO] [stderr]    Compiling tokio-tun v0.3.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 4.11s
[INFO] running `Command { std: "docker" "inspect" "ce5c296bee858749fce3d9393e7fbeb19592b6e96d8d57434e77ea9052e5620e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ce5c296bee858749fce3d9393e7fbeb19592b6e96d8d57434e77ea9052e5620e", kill_on_drop: false }`
[INFO] [stdout] ce5c296bee858749fce3d9393e7fbeb19592b6e96d8d57434e77ea9052e5620e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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] d5a74f30c3d24d85b207d8f410c39f1064c2af95256a991a21db82cb98c3fea9
[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" "d5a74f30c3d24d85b207d8f410c39f1064c2af95256a991a21db82cb98c3fea9", kill_on_drop: false }`
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.06s
[INFO] [stdout] running 0 tests
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/tokio_tun-964261aa733dd7f8
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests tokio-tun
[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 `Command { std: "docker" "inspect" "d5a74f30c3d24d85b207d8f410c39f1064c2af95256a991a21db82cb98c3fea9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d5a74f30c3d24d85b207d8f410c39f1064c2af95256a991a21db82cb98c3fea9", kill_on_drop: false }`
[INFO] [stdout] d5a74f30c3d24d85b207d8f410c39f1064c2af95256a991a21db82cb98c3fea9