[INFO] fetching crate mastodon-api-models 0.1.0...
[INFO] documenting mastodon-api-models-0.1.0 against beta-2020-08-29 for beta-1.47-rustdoc-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 beta-2020-08-29
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2020-08-29" "read-manifest" "--manifest-path" "Cargo.toml", 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" "+beta-2020-08-29" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2020-08-29" "fetch" "--locked" "--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" "rustops/crates-build-env@sha256:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2020-08-29" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 1494add8b2bf614e0be4b4f2fdc47f9316760ec7f942e4673c1e4450a64b73b2
[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" "1494add8b2bf614e0be4b4f2fdc47f9316760ec7f942e4673c1e4450a64b73b2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "1494add8b2bf614e0be4b4f2fdc47f9316760ec7f942e4673c1e4450a64b73b2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1494add8b2bf614e0be4b4f2fdc47f9316760ec7f942e4673c1e4450a64b73b2", kill_on_drop: false }`
[INFO] [stdout] 1494add8b2bf614e0be4b4f2fdc47f9316760ec7f942e4673c1e4450a64b73b2
[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" "RUSTDOCFLAGS=--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:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2020-08-29" "doc" "--frozen" "--no-deps" "--document-private-items" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] c330f39ee2acda9dedd771fec65597933a5757cbbdda47d2a8f1f877dd4b8a51
[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" "c330f39ee2acda9dedd771fec65597933a5757cbbdda47d2a8f1f877dd4b8a51", kill_on_drop: false }`
[INFO] [stderr]    Compiling fehler-macros v1.0.0
[INFO] [stderr]    Compiling derive-getters v0.1.1
[INFO] [stderr]    Compiling serde v1.0.115
[INFO] [stderr]     Checking url v2.1.1
[INFO] [stderr]    Compiling proc-macro-error v1.0.4
[INFO] [stderr]    Compiling isolang v1.0.0
[INFO] [stderr]    Compiling derive_builder_core v0.9.0
[INFO] [stderr]     Checking chrono v0.4.15
[INFO] [stderr]    Compiling getset v0.1.1
[INFO] [stderr]    Compiling derive_builder v0.9.0
[INFO] [stderr]    Compiling fehler v1.0.0
[INFO] [stderr]    Compiling serde_json v1.0.57
[INFO] [stderr]    Compiling mastodon-api-models v0.1.0 (/opt/rustwide/workdir)
[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-0b2d1ad6753a9ff0/build-script-build` (exit code: 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" "c330f39ee2acda9dedd771fec65597933a5757cbbdda47d2a8f1f877dd4b8a51", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c330f39ee2acda9dedd771fec65597933a5757cbbdda47d2a8f1f877dd4b8a51", kill_on_drop: false }`
[INFO] [stdout] c330f39ee2acda9dedd771fec65597933a5757cbbdda47d2a8f1f877dd4b8a51