[INFO] fetching crate guardian 1.0.1...
[INFO] testing guardian-1.0.1 against 1.55.0 for beta-1.56-1
[INFO] extracting crate guardian 1.0.1 into /workspace/builds/worker-5/source
[INFO] validating manifest of crates.io crate guardian 1.0.1 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 guardian 1.0.1
[INFO] finished tweaking crates.io crate guardian 1.0.1
[INFO] tweaked toml for crates.io crate guardian 1.0.1 written to /workspace/builds/worker-5/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] d3644f45efa73db7990b114933324f0187b8ba5ec833f9b10992e658390728dd
[INFO] running `Command { std: "docker" "start" "-a" "d3644f45efa73db7990b114933324f0187b8ba5ec833f9b10992e658390728dd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "d3644f45efa73db7990b114933324f0187b8ba5ec833f9b10992e658390728dd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d3644f45efa73db7990b114933324f0187b8ba5ec833f9b10992e658390728dd", kill_on_drop: false }`
[INFO] [stdout] d3644f45efa73db7990b114933324f0187b8ba5ec833f9b10992e658390728dd
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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] [stdout] d278105d73b0e4f76fb55bbefc7ec3534abde23819d7e76f722767f8bf6eefc5
[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" "d278105d73b0e4f76fb55bbefc7ec3534abde23819d7e76f722767f8bf6eefc5", kill_on_drop: false }`
[INFO] [stderr]    Compiling guardian v1.0.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.30s
[INFO] running `Command { std: "docker" "inspect" "d278105d73b0e4f76fb55bbefc7ec3534abde23819d7e76f722767f8bf6eefc5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d278105d73b0e4f76fb55bbefc7ec3534abde23819d7e76f722767f8bf6eefc5", kill_on_drop: false }`
[INFO] [stdout] d278105d73b0e4f76fb55bbefc7ec3534abde23819d7e76f722767f8bf6eefc5
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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] b75425f223762039ef7511762956369a5942cb4e0e6197cd8ec872dbe26cdcc8
[INFO] running `Command { std: "docker" "start" "-a" "b75425f223762039ef7511762956369a5942cb4e0e6197cd8ec872dbe26cdcc8", kill_on_drop: false }`
[INFO] [stderr]    Compiling guardian v1.0.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.69s
[INFO] running `Command { std: "docker" "inspect" "b75425f223762039ef7511762956369a5942cb4e0e6197cd8ec872dbe26cdcc8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b75425f223762039ef7511762956369a5942cb4e0e6197cd8ec872dbe26cdcc8", kill_on_drop: false }`
[INFO] [stdout] b75425f223762039ef7511762956369a5942cb4e0e6197cd8ec872dbe26cdcc8
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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] 187a1562e70a7e898d26fd03f67f3e180bfb431d286d45ab4c0845edc3173abd
[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" "187a1562e70a7e898d26fd03f67f3e180bfb431d286d45ab4c0845edc3173abd", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.00s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/guardian-cc0566c8b4f036b4)
[INFO] [stdout] 
[INFO] [stdout] running 6 tests
[INFO] [stderr] error: test failed, to rerun pass '--lib'
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `/opt/rustwide/target/debug/deps/guardian-cc0566c8b4f036b4` (signal: 11, SIGSEGV: invalid memory reference)
[INFO] running `Command { std: "docker" "inspect" "187a1562e70a7e898d26fd03f67f3e180bfb431d286d45ab4c0845edc3173abd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "187a1562e70a7e898d26fd03f67f3e180bfb431d286d45ab4c0845edc3173abd", kill_on_drop: false }`
[INFO] [stdout] 187a1562e70a7e898d26fd03f67f3e180bfb431d286d45ab4c0845edc3173abd