[INFO] fetching crate uuid_v1 0.1.2...
[INFO] testing uuid_v1-0.1.2 against beta-2021-01-01 for beta-1.50-1
[INFO] extracting crate uuid_v1 0.1.2 into /workspace/builds/worker-4/source
[INFO] validating manifest of crates.io crate uuid_v1 0.1.2 on toolchain beta-2021-01-01
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-01-01" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate uuid_v1 0.1.2
[INFO] finished tweaking crates.io crate uuid_v1 0.1.2
[INFO] tweaked toml for crates.io crate uuid_v1 0.1.2 written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-01-01" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-01-01" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded handlebars v0.16.1
[INFO] [stderr]   Downloaded chrono v0.3.0
[INFO] [stderr]   Downloaded ip v1.1.1
[INFO] [stderr]   Downloaded interfaces v0.0.1
[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" "rustops/crates-build-env@sha256:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-01-01" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] fca98618ce4b7135fe0907de875debf3dc069437197f73716940fd65feaf69ee
[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" "fca98618ce4b7135fe0907de875debf3dc069437197f73716940fd65feaf69ee", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "fca98618ce4b7135fe0907de875debf3dc069437197f73716940fd65feaf69ee", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "fca98618ce4b7135fe0907de875debf3dc069437197f73716940fd65feaf69ee", kill_on_drop: false }`
[INFO] [stdout] fca98618ce4b7135fe0907de875debf3dc069437197f73716940fd65feaf69ee
[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" "rustops/crates-build-env@sha256:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-01-01" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 7adb2f73af7a26ba08f610e1ebe3d42a458a0d1730e8dac6336be0ba2bbddb2d
[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" "7adb2f73af7a26ba08f610e1ebe3d42a458a0d1730e8dac6336be0ba2bbddb2d", kill_on_drop: false }`
[INFO] [stderr]    Compiling bitflags v0.5.0
[INFO] [stderr]    Compiling ip v1.1.1
[INFO] [stderr]    Compiling handlebars v0.16.1
[INFO] [stderr]    Compiling chrono v0.3.0
[INFO] [stderr]    Compiling interfaces v0.0.1
[INFO] [stderr] error: failed to run custom build command for `interfaces v0.0.1`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `/opt/rustwide/target/debug/build/interfaces-6ddc985f33881d4d/build-script-build` (exit code: 1)
[INFO] [stderr]   --- stdout
[INFO] [stderr]   Error creating `constants.c` from template
[INFO] [stderr]   -> IoError(Os { code: 30, kind: Other, message: "Read-only file system" })
[INFO] running `Command { std: "docker" "inspect" "7adb2f73af7a26ba08f610e1ebe3d42a458a0d1730e8dac6336be0ba2bbddb2d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7adb2f73af7a26ba08f610e1ebe3d42a458a0d1730e8dac6336be0ba2bbddb2d", kill_on_drop: false }`
[INFO] [stdout] 7adb2f73af7a26ba08f610e1ebe3d42a458a0d1730e8dac6336be0ba2bbddb2d