[INFO] fetching crate spanner 0.0.0...
[INFO] testing spanner-0.0.0 against 1.49.0 for beta-1.50-1
[INFO] extracting crate spanner 0.0.0 into /workspace/builds/worker-7/source
[INFO] validating manifest of crates.io crate spanner 0.0.0 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 spanner 0.0.0
[INFO] finished tweaking crates.io crate spanner 0.0.0
[INFO] tweaked toml for crates.io crate spanner 0.0.0 written to /workspace/builds/worker-7/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-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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] 15c562464fd7d6f1a3b02f9e6fa88d34b373adebf6ba8c54653fa95e6f913059
[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" "15c562464fd7d6f1a3b02f9e6fa88d34b373adebf6ba8c54653fa95e6f913059", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "15c562464fd7d6f1a3b02f9e6fa88d34b373adebf6ba8c54653fa95e6f913059", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "15c562464fd7d6f1a3b02f9e6fa88d34b373adebf6ba8c54653fa95e6f913059", kill_on_drop: false }`
[INFO] [stdout] 15c562464fd7d6f1a3b02f9e6fa88d34b373adebf6ba8c54653fa95e6f913059
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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] a0657b749d78b8af6f6ce2ce3b9d501062b84da19625a5d5efa8888d1ba4ed14
[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" "a0657b749d78b8af6f6ce2ce3b9d501062b84da19625a5d5efa8888d1ba4ed14", kill_on_drop: false }`
[INFO] [stderr]    Compiling spanner v0.0.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.58s
[INFO] running `Command { std: "docker" "inspect" "a0657b749d78b8af6f6ce2ce3b9d501062b84da19625a5d5efa8888d1ba4ed14", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a0657b749d78b8af6f6ce2ce3b9d501062b84da19625a5d5efa8888d1ba4ed14", kill_on_drop: false }`
[INFO] [stdout] a0657b749d78b8af6f6ce2ce3b9d501062b84da19625a5d5efa8888d1ba4ed14
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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] a1d3e910bdf90289a6f354d84abd170c4b1e9f90bc885b36d166a49bf709ab3c
[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" "a1d3e910bdf90289a6f354d84abd170c4b1e9f90bc885b36d166a49bf709ab3c", kill_on_drop: false }`
[INFO] [stderr]    Compiling spanner v0.0.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.59s
[INFO] running `Command { std: "docker" "inspect" "a1d3e910bdf90289a6f354d84abd170c4b1e9f90bc885b36d166a49bf709ab3c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a1d3e910bdf90289a6f354d84abd170c4b1e9f90bc885b36d166a49bf709ab3c", kill_on_drop: false }`
[INFO] [stdout] a1d3e910bdf90289a6f354d84abd170c4b1e9f90bc885b36d166a49bf709ab3c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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] 854161782d7737ac666b635ec3937ae9a7d9e97bcd7c9259b4bfd4d31f54e8f8
[INFO] running `Command { std: "docker" "start" "-a" "854161782d7737ac666b635ec3937ae9a7d9e97bcd7c9259b4bfd4d31f54e8f8", kill_on_drop: false }`
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stdout] running 1 test
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/spanner-2ace0cd78c8f4cbb
[INFO] [stdout] test tests::it_works ... ok
[INFO] [stderr]    Doc-tests spanner
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 1 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" "854161782d7737ac666b635ec3937ae9a7d9e97bcd7c9259b4bfd4d31f54e8f8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "854161782d7737ac666b635ec3937ae9a7d9e97bcd7c9259b4bfd4d31f54e8f8", kill_on_drop: false }`
[INFO] [stdout] 854161782d7737ac666b635ec3937ae9a7d9e97bcd7c9259b4bfd4d31f54e8f8