[INFO] fetching crate kalk 1.4.1...
[INFO] testing kalk-1.4.1 against 1.49.0 for beta-1.50-1
[INFO] extracting crate kalk 1.4.1 into /workspace/builds/worker-1/source
[INFO] validating manifest of crates.io crate kalk 1.4.1 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 kalk 1.4.1
[INFO] finished tweaking crates.io crate kalk 1.4.1
[INFO] tweaked toml for crates.io crate kalk 1.4.1 written to /workspace/builds/worker-1/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-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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] c8b76cc2c3d07b0f0fc86e517423817ad14e7a22acdddd65b40bc09bb573db9a
[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" "c8b76cc2c3d07b0f0fc86e517423817ad14e7a22acdddd65b40bc09bb573db9a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "c8b76cc2c3d07b0f0fc86e517423817ad14e7a22acdddd65b40bc09bb573db9a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c8b76cc2c3d07b0f0fc86e517423817ad14e7a22acdddd65b40bc09bb573db9a", kill_on_drop: false }`
[INFO] [stdout] c8b76cc2c3d07b0f0fc86e517423817ad14e7a22acdddd65b40bc09bb573db9a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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] 8a16f5d18b72a681a601dc699783601e8074e448e1889f3e2e77fd4c7c79f87f
[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" "8a16f5d18b72a681a601dc699783601e8074e448e1889f3e2e77fd4c7c79f87f", kill_on_drop: false }`
[INFO] [stderr]    Compiling wasm-bindgen-shared v0.2.69
[INFO] [stderr]    Compiling gmp-mpfr-sys v1.4.2
[INFO] [stderr]    Compiling wasm-bindgen v0.2.69
[INFO] [stderr]    Compiling rug v1.11.0
[INFO] [stderr]    Compiling az v1.0.0
[INFO] [stderr]    Compiling wasm-bindgen-backend v0.2.69
[INFO] [stderr]    Compiling wasm-bindgen-macro-support v0.2.69
[INFO] [stderr]    Compiling wasm-bindgen-macro v0.2.69
[ERROR] error running command: no output for 300 seconds
[INFO] running `Command { std: "docker" "inspect" "8a16f5d18b72a681a601dc699783601e8074e448e1889f3e2e77fd4c7c79f87f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8a16f5d18b72a681a601dc699783601e8074e448e1889f3e2e77fd4c7c79f87f", kill_on_drop: false }`
[INFO] [stdout] 8a16f5d18b72a681a601dc699783601e8074e448e1889f3e2e77fd4c7c79f87f