[INFO] fetching crate orbtk-tree 0.3.1-alpha3...
[INFO] testing orbtk-tree-0.3.1-alpha3 against 1.49.0 for beta-1.50-1
[INFO] extracting crate orbtk-tree 0.3.1-alpha3 into /workspace/builds/worker-8/source
[INFO] validating manifest of crates.io crate orbtk-tree 0.3.1-alpha3 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 orbtk-tree 0.3.1-alpha3
[INFO] finished tweaking crates.io crate orbtk-tree 0.3.1-alpha3
[INFO] tweaked toml for crates.io crate orbtk-tree 0.3.1-alpha3 written to /workspace/builds/worker-8/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.49.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[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-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" "+1.49.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 542336c0935bc6e25e183c5945e40385a9501f39c5e2edb65ccd0cc90c98ea9a
[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" "542336c0935bc6e25e183c5945e40385a9501f39c5e2edb65ccd0cc90c98ea9a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "542336c0935bc6e25e183c5945e40385a9501f39c5e2edb65ccd0cc90c98ea9a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "542336c0935bc6e25e183c5945e40385a9501f39c5e2edb65ccd0cc90c98ea9a", kill_on_drop: false }`
[INFO] [stdout] 542336c0935bc6e25e183c5945e40385a9501f39c5e2edb65ccd0cc90c98ea9a
[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" "+1.49.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] be6eb6a8091810f7bf945129ad2829d67ae44f1148837bf3937cb453d16c627f
[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" "be6eb6a8091810f7bf945129ad2829d67ae44f1148837bf3937cb453d16c627f", kill_on_drop: false }`
[INFO] [stderr]    Compiling dces v0.3.0
[INFO] [stderr]    Compiling orbtk-tree v0.3.1-alpha3 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2.51s
[INFO] running `Command { std: "docker" "inspect" "be6eb6a8091810f7bf945129ad2829d67ae44f1148837bf3937cb453d16c627f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "be6eb6a8091810f7bf945129ad2829d67ae44f1148837bf3937cb453d16c627f", kill_on_drop: false }`
[INFO] [stdout] be6eb6a8091810f7bf945129ad2829d67ae44f1148837bf3937cb453d16c627f
[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" "+1.49.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 0c447083700ea6101e6c966d9e2035b41a02c734cb751ea2eaf860bfb4c87510
[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" "0c447083700ea6101e6c966d9e2035b41a02c734cb751ea2eaf860bfb4c87510", kill_on_drop: false }`
[INFO] [stderr]    Compiling orbtk-tree v0.3.1-alpha3 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 2.29s
[INFO] running `Command { std: "docker" "inspect" "0c447083700ea6101e6c966d9e2035b41a02c734cb751ea2eaf860bfb4c87510", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0c447083700ea6101e6c966d9e2035b41a02c734cb751ea2eaf860bfb4c87510", kill_on_drop: false }`
[INFO] [stdout] 0c447083700ea6101e6c966d9e2035b41a02c734cb751ea2eaf860bfb4c87510
[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" "+1.49.0" "test" "--frozen", 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] 7e1aaa1d2974e61c78efbddc53dcc54d0cca48741e75c7123959baef40a4ac79
[INFO] running `Command { std: "docker" "start" "-a" "7e1aaa1d2974e61c78efbddc53dcc54d0cca48741e75c7123959baef40a4ac79", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.04s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/orbtk_tree-cdfc9bf23d261f1e
[INFO] [stdout] 
[INFO] [stdout] running 7 tests
[INFO] [stderr]    Doc-tests orbtk-tree
[INFO] [stdout] test tests::test_is_empty ... ok
[INFO] [stdout] test tests::test_append_child ... ok
[INFO] [stdout] test tests::test_register_entity ... ok
[INFO] [stdout] test tests::test_iterator_next ... ok
[INFO] [stdout] test tests::test_len ... ok
[INFO] [stdout] test tests::test_register_node ... ok
[INFO] [stdout] test tests::test_remove_entity ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 7 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test src/lib.rs - (line 8) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "7e1aaa1d2974e61c78efbddc53dcc54d0cca48741e75c7123959baef40a4ac79", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7e1aaa1d2974e61c78efbddc53dcc54d0cca48741e75c7123959baef40a4ac79", kill_on_drop: false }`
[INFO] [stdout] 7e1aaa1d2974e61c78efbddc53dcc54d0cca48741e75c7123959baef40a4ac79