[INFO] fetching crate xhypervisor 0.0.12...
[INFO] testing xhypervisor-0.0.12 against 1.54.0 for beta-1.55-1
[INFO] extracting crate xhypervisor 0.0.12 into /workspace/builds/worker-4/source
[INFO] validating manifest of crates.io crate xhypervisor 0.0.12 on toolchain 1.54.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.54.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate xhypervisor 0.0.12
[INFO] finished tweaking crates.io crate xhypervisor 0.0.12
[INFO] tweaked toml for crates.io crate xhypervisor 0.0.12 written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.54.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.54.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+1.54.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] ffa02be189daeb8fc11118a938cdb389ac156a59830718e19b0782be945c310e
[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" "ffa02be189daeb8fc11118a938cdb389ac156a59830718e19b0782be945c310e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "ffa02be189daeb8fc11118a938cdb389ac156a59830718e19b0782be945c310e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ffa02be189daeb8fc11118a938cdb389ac156a59830718e19b0782be945c310e", kill_on_drop: false }`
[INFO] [stdout] ffa02be189daeb8fc11118a938cdb389ac156a59830718e19b0782be945c310e
[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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+1.54.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] efdcd19f50f4e5cd5e5badd26a364cbb32d033c71c7407bfc65195b21af960fd
[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" "efdcd19f50f4e5cd5e5badd26a364cbb32d033c71c7407bfc65195b21af960fd", kill_on_drop: false }`
[INFO] [stderr]    Compiling xhypervisor v0.0.12 (/opt/rustwide/workdir)
[INFO] [stdout] error: native frameworks are only available on macOS targets
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `xhypervisor`
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `Command { std: "docker" "inspect" "efdcd19f50f4e5cd5e5badd26a364cbb32d033c71c7407bfc65195b21af960fd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "efdcd19f50f4e5cd5e5badd26a364cbb32d033c71c7407bfc65195b21af960fd", kill_on_drop: false }`
[INFO] [stdout] efdcd19f50f4e5cd5e5badd26a364cbb32d033c71c7407bfc65195b21af960fd
