[INFO] fetching crate rustun 0.3.7...
[INFO] testing rustun-0.3.7 against 1.55.0 for beta-1.56-1
[INFO] extracting crate rustun 0.3.7 into /workspace/builds/worker-4/source
[INFO] validating manifest of crates.io crate rustun 0.3.7 on toolchain 1.55.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate rustun 0.3.7
[INFO] finished tweaking crates.io crate rustun 0.3.7
[INFO] tweaked toml for crates.io crate rustun 0.3.7 written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] crate crates.io crate rustun 0.3.7 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "fetch" "--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-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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 6d4617e40e2810daddfa95f1f84dccef35acca15f918e4d3081c48042a8ec5ce
[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" "6d4617e40e2810daddfa95f1f84dccef35acca15f918e4d3081c48042a8ec5ce", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "6d4617e40e2810daddfa95f1f84dccef35acca15f918e4d3081c48042a8ec5ce", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6d4617e40e2810daddfa95f1f84dccef35acca15f918e4d3081c48042a8ec5ce", kill_on_drop: false }`
[INFO] [stdout] 6d4617e40e2810daddfa95f1f84dccef35acca15f918e4d3081c48042a8ec5ce
[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=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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "build" "--frozen" "--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] 1124f8d2d8effe48cda65c09cc392adb50e3d13f62d78f881696ac7f31a4dc49
[INFO] running `Command { std: "docker" "start" "-a" "1124f8d2d8effe48cda65c09cc392adb50e3d13f62d78f881696ac7f31a4dc49", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.77
[INFO] [stderr]    Compiling proc-macro2 v1.0.21
[INFO] [stderr]    Compiling syn v1.0.40
[INFO] [stderr]    Compiling log v0.4.11
[INFO] [stderr]    Compiling slab v0.4.2
[INFO] [stderr]    Compiling build_const v0.2.1
[INFO] [stderr]    Compiling futures v0.1.29
[INFO] [stderr]    Compiling splay_tree v0.2.10
[INFO] [stderr]    Compiling nbchan v0.1.3
[INFO] [stderr]    Compiling sha1 v0.2.0
[INFO] [stderr]    Compiling factory v0.1.2
[INFO] [stderr]    Compiling md5 v0.6.1
[INFO] [stderr]    Compiling hmac-sha1 v0.1.3
[INFO] [stderr]    Compiling crc v1.8.1
[INFO] [stderr]    Compiling quote v1.0.7
[INFO] [stderr]    Compiling net2 v0.2.35
[INFO] [stderr]    Compiling iovec v0.1.4
[INFO] [stderr]    Compiling num_cpus v1.13.0
[INFO] [stderr]    Compiling rand v0.5.6
[INFO] [stderr]    Compiling mio v0.6.22
[INFO] [stderr]    Compiling fibers v0.1.13
[INFO] [stderr]    Compiling fibers_timeout_queue v0.1.0
[INFO] [stderr]    Compiling trackable_derive v0.1.3
[INFO] [stderr]    Compiling trackable v0.2.23
[INFO] [stderr]    Compiling bytecodec v0.4.13
[INFO] [stderr]    Compiling stun_codec v0.1.12
[INFO] [stderr]    Compiling fibers_transport v0.1.3
[INFO] [stderr]    Compiling rustun v0.3.7 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 17.07s
[INFO] running `Command { std: "docker" "inspect" "1124f8d2d8effe48cda65c09cc392adb50e3d13f62d78f881696ac7f31a4dc49", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1124f8d2d8effe48cda65c09cc392adb50e3d13f62d78f881696ac7f31a4dc49", kill_on_drop: false }`
[INFO] [stdout] 1124f8d2d8effe48cda65c09cc392adb50e3d13f62d78f881696ac7f31a4dc49
[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=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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "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] 264e98700856b68475c3dcd6ef9b3391c8dce78a6dd72a3d97ab7e7b2e3fda90
[INFO] running `Command { std: "docker" "start" "-a" "264e98700856b68475c3dcd6ef9b3391c8dce78a6dd72a3d97ab7e7b2e3fda90", kill_on_drop: false }`
[INFO] [stderr]    Compiling atty v0.2.14
[INFO] [stderr]    Compiling fibers_global v0.1.2
[INFO] [stderr]    Compiling clap v2.33.3
[INFO] [stderr]    Compiling rustun v0.3.7 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 7.91s
[INFO] running `Command { std: "docker" "inspect" "264e98700856b68475c3dcd6ef9b3391c8dce78a6dd72a3d97ab7e7b2e3fda90", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "264e98700856b68475c3dcd6ef9b3391c8dce78a6dd72a3d97ab7e7b2e3fda90", kill_on_drop: false }`
[INFO] [stdout] 264e98700856b68475c3dcd6ef9b3391c8dce78a6dd72a3d97ab7e7b2e3fda90
[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=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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 6ff4bb657ebb34b2e7ba714a9c41ba272bfe178bc04a388cdccfe192525abb90
[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" "6ff4bb657ebb34b2e7ba714a9c41ba272bfe178bc04a388cdccfe192525abb90", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.05s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/rustun-0b6ac1eea4fe30af)
[INFO] [stdout] 
[INFO] [stdout] running 2 tests
[INFO] [stdout] test tests::basic_udp_test ... ok
[INFO] [stdout] test tests::basic_tcp_test ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 2 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.09s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests rustun
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test src/lib.rs - (line 7) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 3.39s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "6ff4bb657ebb34b2e7ba714a9c41ba272bfe178bc04a388cdccfe192525abb90", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6ff4bb657ebb34b2e7ba714a9c41ba272bfe178bc04a388cdccfe192525abb90", kill_on_drop: false }`
[INFO] [stdout] 6ff4bb657ebb34b2e7ba714a9c41ba272bfe178bc04a388cdccfe192525abb90