[INFO] fetching crate mastodon-api-models 0.1.0...
[INFO] testing mastodon-api-models-0.1.0 against 1.55.0 for beta-1.56-1
[INFO] extracting crate mastodon-api-models 0.1.0 into /workspace/builds/worker-7/source
[INFO] validating manifest of crates.io crate mastodon-api-models 0.1.0 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 mastodon-api-models 0.1.0
[INFO] finished tweaking crates.io crate mastodon-api-models 0.1.0
[INFO] tweaked toml for crates.io crate mastodon-api-models 0.1.0 written to /workspace/builds/worker-7/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-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" "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] 8807e5d5f4b2da985ae2ff8e2fb1f3db9f3dd0a5a397f28a0587ab298cccee2a
[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" "8807e5d5f4b2da985ae2ff8e2fb1f3db9f3dd0a5a397f28a0587ab298cccee2a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "8807e5d5f4b2da985ae2ff8e2fb1f3db9f3dd0a5a397f28a0587ab298cccee2a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8807e5d5f4b2da985ae2ff8e2fb1f3db9f3dd0a5a397f28a0587ab298cccee2a", kill_on_drop: false }`
[INFO] [stdout] 8807e5d5f4b2da985ae2ff8e2fb1f3db9f3dd0a5a397f28a0587ab298cccee2a
[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" "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] 292bbf2bf81c7dd25ea2415d150a7e97074b3a2e63244d199ed3b0526a95b4e8
[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" "292bbf2bf81c7dd25ea2415d150a7e97074b3a2e63244d199ed3b0526a95b4e8", kill_on_drop: false }`
[INFO] [stderr]    Compiling derive_builder v0.9.0
[INFO] [stderr]    Compiling darling_core v0.10.2
[INFO] [stderr]    Compiling fehler-macros v1.0.0
[INFO] [stderr]    Compiling proc-macro-error v1.0.4
[INFO] [stderr]    Compiling derive-getters v0.1.1
[INFO] [stderr]    Compiling serde_json v1.0.67
[INFO] [stderr]    Compiling isolang v1.0.0
[INFO] [stderr]    Compiling chrono v0.4.19
[INFO] [stderr]    Compiling getset v0.1.1
[INFO] [stderr]    Compiling fehler v1.0.0
[INFO] [stderr]    Compiling darling_macro v0.10.2
[INFO] [stderr]    Compiling mastodon-api-models v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]    Compiling darling v0.10.2
[INFO] [stderr]    Compiling derive_builder_core v0.9.0
[INFO] [stderr] error: failed to run custom build command for `mastodon-api-models v0.1.0 (/opt/rustwide/workdir)`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `/opt/rustwide/target/debug/build/mastodon-api-models-fcd7bb949581f99e/build-script-build` (exit status: 1)
[INFO] [stderr]   --- stderr
[INFO] [stderr]   Error: trying to open to_file
[INFO] [stderr] 
[INFO] [stderr]   Caused by:
[INFO] [stderr]       Read-only file system (os error 30)
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: build failed
[INFO] running `Command { std: "docker" "inspect" "292bbf2bf81c7dd25ea2415d150a7e97074b3a2e63244d199ed3b0526a95b4e8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "292bbf2bf81c7dd25ea2415d150a7e97074b3a2e63244d199ed3b0526a95b4e8", kill_on_drop: false }`
[INFO] [stdout] 292bbf2bf81c7dd25ea2415d150a7e97074b3a2e63244d199ed3b0526a95b4e8