[INFO] fetching crate lc-renderer 0.2.0...
[INFO] testing lc-renderer-0.2.0 against 1.55.0 for beta-1.56-1
[INFO] extracting crate lc-renderer 0.2.0 into /workspace/builds/worker-0/source
[INFO] validating manifest of crates.io crate lc-renderer 0.2.0 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 lc-renderer 0.2.0
[INFO] finished tweaking crates.io crate lc-renderer 0.2.0
[INFO] tweaked toml for crates.io crate lc-renderer 0.2.0 written to /workspace/builds/worker-0/source/Cargo.toml
[INFO] crate crates.io crate lc-renderer 0.2.0 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "fetch" "--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-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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] [stdout] d5bd4157c058bab6e733e7a3a3f0b001712035198d8383bceb6e5ab834be2e89
[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" "d5bd4157c058bab6e733e7a3a3f0b001712035198d8383bceb6e5ab834be2e89", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "d5bd4157c058bab6e733e7a3a3f0b001712035198d8383bceb6e5ab834be2e89", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d5bd4157c058bab6e733e7a3a3f0b001712035198d8383bceb6e5ab834be2e89", kill_on_drop: false }`
[INFO] [stdout] d5bd4157c058bab6e733e7a3a3f0b001712035198d8383bceb6e5ab834be2e89
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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] ac86e8340f5df429b7a18a371eec37754614d0d4cb9dd9e1abc1be53bfb7280a
[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" "ac86e8340f5df429b7a18a371eec37754614d0d4cb9dd9e1abc1be53bfb7280a", kill_on_drop: false }`
[INFO] [stderr]    Compiling futures-task v0.3.15
[INFO] [stderr]    Compiling futures-channel v0.3.15
[INFO] [stderr]    Compiling httpdate v1.0.0
[INFO] [stderr]    Compiling svg v0.9.1
[INFO] [stderr]    Compiling tokio v1.6.0
[INFO] [stderr]    Compiling futures-util v0.3.15
[INFO] [stderr]    Compiling crossbeam-utils v0.8.4
[INFO] [stderr]    Compiling itertools v0.10.0
[INFO] [stderr]    Compiling thread_local v1.1.3
[INFO] [stderr]    Compiling http-body v0.4.2
[INFO] [stderr]    Compiling which v4.1.0
[INFO] [stderr]    Compiling mio v0.7.11
[INFO] [stderr]    Compiling socket2 v0.4.0
[INFO] [stderr]    Compiling time v0.1.43
[INFO] [stderr]    Compiling petgraph v0.5.1
[INFO] [stderr]    Compiling prost-derive v0.7.0
[INFO] [stderr]    Compiling tokio-macros v1.2.0
[INFO] [stderr]    Compiling tracing-attributes v0.1.15
[INFO] [stderr]    Compiling pin-project-internal v1.0.7
[INFO] [stderr]    Compiling async-stream-impl v0.3.1
[INFO] [stderr]    Compiling async-trait v0.1.50
[INFO] [stderr]    Compiling rand v0.8.3
[INFO] [stderr]    Compiling chrono v0.4.19
[INFO] [stderr]    Compiling prost-build v0.7.0
[INFO] [stderr]    Compiling lc-render v0.2.3
[INFO] [stderr]    Compiling tempfile v3.2.0
[INFO] [stderr]    Compiling slog-json v2.3.0
[INFO] [stderr]    Compiling crossbeam-channel v0.5.1
[INFO] [stderr]    Compiling slog-async v2.6.0
[INFO] [stderr]    Compiling async-stream v0.3.1
[INFO] [stderr]    Compiling tracing v0.1.26
[INFO] [stderr]    Compiling pin-project v1.0.7
[INFO] [stderr]    Compiling prost v0.7.0
[INFO] [stderr]    Compiling tracing-futures v0.2.5
[INFO] [stderr]    Compiling prost-types v0.7.0
[INFO] [stderr]    Compiling tonic-build v0.4.2
[INFO] [stderr]    Compiling tokio-util v0.6.7
[INFO] [stderr]    Compiling tokio-stream v0.1.6
[INFO] [stderr]    Compiling h2 v0.3.3
[INFO] [stderr]    Compiling tower v0.4.7
[INFO] [stderr]    Compiling tonic-health v0.3.1
[INFO] [stderr]    Compiling lc-renderer v0.2.0 (/opt/rustwide/workdir)
[INFO] [stderr] error: failed to run custom build command for `lc-renderer v0.2.0 (/opt/rustwide/workdir)`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `/opt/rustwide/target/debug/build/lc-renderer-ed9ec116624982dc/build-script-build` (exit status: 1)
[INFO] [stderr]   --- stderr
[INFO] [stderr]   Error: Os { code: 30, kind: ReadOnlyFilesystem, message: "Read-only file system" }
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: build failed
[INFO] running `Command { std: "docker" "inspect" "ac86e8340f5df429b7a18a371eec37754614d0d4cb9dd9e1abc1be53bfb7280a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ac86e8340f5df429b7a18a371eec37754614d0d4cb9dd9e1abc1be53bfb7280a", kill_on_drop: false }`
[INFO] [stdout] ac86e8340f5df429b7a18a371eec37754614d0d4cb9dd9e1abc1be53bfb7280a