[INFO] fetching crate libunicorn-sys 0.9.1...
[INFO] testing libunicorn-sys-0.9.1 against 1.49.0 for beta-1.50-1
[INFO] extracting crate libunicorn-sys 0.9.1 into /workspace/builds/worker-7/source
[INFO] validating manifest of crates.io crate libunicorn-sys 0.9.1 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 libunicorn-sys 0.9.1
[INFO] finished tweaking crates.io crate libunicorn-sys 0.9.1
[INFO] tweaked toml for crates.io crate libunicorn-sys 0.9.1 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] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.49.0" "fetch" "--locked" "--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-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] ff10db4f466392f20a3f0196d8a06c7fc6a679dc711c93be9b666171ddb63930
[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" "ff10db4f466392f20a3f0196d8a06c7fc6a679dc711c93be9b666171ddb63930", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "ff10db4f466392f20a3f0196d8a06c7fc6a679dc711c93be9b666171ddb63930", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ff10db4f466392f20a3f0196d8a06c7fc6a679dc711c93be9b666171ddb63930", kill_on_drop: false }`
[INFO] [stdout] ff10db4f466392f20a3f0196d8a06c7fc6a679dc711c93be9b666171ddb63930
[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] 00367306e055db068e923d150f7c58c7582610eef2013a042684b03c22d7c192
[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" "00367306e055db068e923d150f7c58c7582610eef2013a042684b03c22d7c192", kill_on_drop: false }`
[INFO] [stderr]    Compiling semver v0.6.0
[INFO] [stderr]    Compiling os_type v2.2.0
[INFO] [stderr]    Compiling build-helper v0.1.1
[INFO] [stderr]    Compiling libunicorn-sys v0.9.1 (/opt/rustwide/workdir)
[INFO] [stdout] error: could not find native static library `unicorn`, perhaps an -L flag is missing?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `libunicorn-sys`
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `Command { std: "docker" "inspect" "00367306e055db068e923d150f7c58c7582610eef2013a042684b03c22d7c192", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "00367306e055db068e923d150f7c58c7582610eef2013a042684b03c22d7c192", kill_on_drop: false }`
[INFO] [stdout] 00367306e055db068e923d150f7c58c7582610eef2013a042684b03c22d7c192