[INFO] updating cached repository https://github.com/divvun/derive-collect-docs
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "-c" "remote.origin.fetch=refs/heads/*:refs/heads/*" "fetch" "origin" "--force" "--prune", kill_on_drop: false }`
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] b8ca4647315cf85f142bdcfde8709e6dbbdecd6e
[INFO] testing divvun/derive-collect-docs against master#8534be72fc3b9c5f2f2dc4e4ee7b651a008e9a3e for pr-74409
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdivvun%2Fderive-collect-docs" "/workspace/builds/worker-0/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-0/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/divvun/derive-collect-docs on toolchain 8534be72fc3b9c5f2f2dc4e4ee7b651a008e9a3e
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+8534be72fc3b9c5f2f2dc4e4ee7b651a008e9a3e" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/divvun/derive-collect-docs
[INFO] finished tweaking git repo https://github.com/divvun/derive-collect-docs
[INFO] tweaked toml for git repo https://github.com/divvun/derive-collect-docs written to /workspace/builds/worker-0/source/Cargo.toml
[INFO] crate git repo https://github.com/divvun/derive-collect-docs already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+8534be72fc3b9c5f2f2dc4e4ee7b651a008e9a3e" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env@sha256:38e1b949b06cde1964af550a6e548bd9b2b2ea170003ae122f8fc0886596cc07" "/opt/rustwide/cargo-home/bin/cargo" "+8534be72fc3b9c5f2f2dc4e4ee7b651a008e9a3e" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 9c87d2ae7439ae97e3ca54339d20ae895125d77c4adcb8e9e6f467107d6f4048
[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" "9c87d2ae7439ae97e3ca54339d20ae895125d77c4adcb8e9e6f467107d6f4048", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "9c87d2ae7439ae97e3ca54339d20ae895125d77c4adcb8e9e6f467107d6f4048", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9c87d2ae7439ae97e3ca54339d20ae895125d77c4adcb8e9e6f467107d6f4048", kill_on_drop: false }`
[INFO] [stdout] 9c87d2ae7439ae97e3ca54339d20ae895125d77c4adcb8e9e6f467107d6f4048
[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" "MAP_USER_ID=0" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--network" "none" "rustops/crates-build-env@sha256:38e1b949b06cde1964af550a6e548bd9b2b2ea170003ae122f8fc0886596cc07" "/opt/rustwide/cargo-home/bin/cargo" "+8534be72fc3b9c5f2f2dc4e4ee7b651a008e9a3e" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 7520c5b92d7e929bc92d5a734f361725590ff41d83f3b489e0b0a840822692e6
[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" "7520c5b92d7e929bc92d5a734f361725590ff41d83f3b489e0b0a840822692e6", kill_on_drop: false }`
[INFO] [stderr]    Compiling unicode-xid v0.2.0
[INFO] [stderr]    Compiling lazy_static v1.4.0
[INFO] [stderr]    Compiling syn v1.0.17
[INFO] [stderr]    Compiling unindent v0.1.5
[INFO] [stderr]    Compiling once_cell v1.3.1
[INFO] [stderr]    Compiling thread_local v1.0.1
[INFO] [stderr]    Compiling proc-macro2 v1.0.9
[INFO] [stderr]    Compiling regex v1.3.6
[INFO] [stderr]    Compiling quote v1.0.3
[INFO] [stderr]    Compiling derive-collect-docs v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 29.09s
[INFO] running `Command { std: "docker" "inspect" "7520c5b92d7e929bc92d5a734f361725590ff41d83f3b489e0b0a840822692e6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7520c5b92d7e929bc92d5a734f361725590ff41d83f3b489e0b0a840822692e6", kill_on_drop: false }`
[INFO] [stdout] 7520c5b92d7e929bc92d5a734f361725590ff41d83f3b489e0b0a840822692e6
[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" "MAP_USER_ID=0" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--network" "none" "rustops/crates-build-env@sha256:38e1b949b06cde1964af550a6e548bd9b2b2ea170003ae122f8fc0886596cc07" "/opt/rustwide/cargo-home/bin/cargo" "+8534be72fc3b9c5f2f2dc4e4ee7b651a008e9a3e" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] b3559e9a21e11c85d3e7cceefa33c052c1b2276c637b5a6bfd020d98998813d8
[INFO] running `Command { std: "docker" "start" "-a" "b3559e9a21e11c85d3e7cceefa33c052c1b2276c637b5a6bfd020d98998813d8", kill_on_drop: false }`
[INFO] [stderr]    Compiling linked-hash-map v0.5.2
[INFO] [stderr]    Compiling dtoa v0.4.5
[INFO] [stderr]    Compiling serde_derive v1.0.105
[INFO] [stderr]    Compiling yaml-rust v0.4.3
[INFO] [stderr]    Compiling serde v1.0.105
[INFO] [stderr]    Compiling serde_yaml v0.8.11
[INFO] [stderr]    Compiling derive-collect-docs v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] error: proc-macro derive panicked
[INFO] [stdout]   --> examples/foo.rs:13:37
[INFO] [stdout]    |
[INFO] [stdout] 13 | #[derive(Debug, serde::Deserialize, CollectDocs)]
[INFO] [stdout]    |                                     ^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: message: could not create directory ./docs/generated: Os { code: 30, kind: Other, message: "Read-only file system" }
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `derive-collect-docs`.
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: build failed
[INFO] running `Command { std: "docker" "inspect" "b3559e9a21e11c85d3e7cceefa33c052c1b2276c637b5a6bfd020d98998813d8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b3559e9a21e11c85d3e7cceefa33c052c1b2276c637b5a6bfd020d98998813d8", kill_on_drop: false }`
[INFO] [stdout] b3559e9a21e11c85d3e7cceefa33c052c1b2276c637b5a6bfd020d98998813d8