[INFO] fetching crate derive-merge-struct 0.2.3...
[INFO] documenting derive-merge-struct-0.2.3 against 1.86.0 for beta-1.87-rustdoc-1
[INFO] extracting crate derive-merge-struct 0.2.3 into /workspace/builds/worker-2-tc1/source
[INFO] validating manifest of crates.io crate derive-merge-struct 0.2.3 on toolchain 1.86.0
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.86.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate derive-merge-struct 0.2.3
[INFO] finished tweaking crates.io crate derive-merge-struct 0.2.3
[INFO] tweaked toml for crates.io crate derive-merge-struct 0.2.3 written to /workspace/builds/worker-2-tc1/source/Cargo.toml
[INFO] crate crates.io crate derive-merge-struct 0.2.3 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.86.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded derive_merge v0.2.2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/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:b0b074c097205a61b89e8ad263052f976b2b332c4dc5f02aef1fe52501660d6e" "/opt/rustwide/cargo-home/bin/cargo" "+1.86.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 509940578b1b7e1be2f54c5d2533b060db274e66b6beb695ab51e1cf286bcd67
[INFO] running `Command { std: "docker" "start" "-a" "509940578b1b7e1be2f54c5d2533b060db274e66b6beb695ab51e1cf286bcd67", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "509940578b1b7e1be2f54c5d2533b060db274e66b6beb695ab51e1cf286bcd67", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "509940578b1b7e1be2f54c5d2533b060db274e66b6beb695ab51e1cf286bcd67", kill_on_drop: false }`
[INFO] [stdout] 509940578b1b7e1be2f54c5d2533b060db274e66b6beb695ab51e1cf286bcd67
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/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" "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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:b0b074c097205a61b89e8ad263052f976b2b332c4dc5f02aef1fe52501660d6e" "/opt/rustwide/cargo-home/bin/cargo" "+1.86.0" "doc" "--frozen" "--no-deps" "--document-private-items" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] c9125c3444364b8fa2b165e8121be67e9eff48ad2ffed39c6a5e0cfadba312de
[INFO] running `Command { std: "docker" "start" "-a" "c9125c3444364b8fa2b165e8121be67e9eff48ad2ffed39c6a5e0cfadba312de", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.94
[INFO] [stderr]    Compiling unicode-ident v1.0.18
[INFO] [stderr]    Compiling quote v1.0.40
[INFO] [stderr]    Compiling syn v2.0.100
[INFO] [stderr]    Compiling derive_merge v0.2.2
[INFO] [stderr]  Documenting derive-merge-struct v0.2.3 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 3.83s
[INFO] [stderr]    Generated /opt/rustwide/target/doc/derive_merge_struct/index.html
[INFO] running `Command { std: "docker" "inspect" "c9125c3444364b8fa2b165e8121be67e9eff48ad2ffed39c6a5e0cfadba312de", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c9125c3444364b8fa2b165e8121be67e9eff48ad2ffed39c6a5e0cfadba312de", kill_on_drop: false }`
[INFO] [stdout] c9125c3444364b8fa2b165e8121be67e9eff48ad2ffed39c6a5e0cfadba312de
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/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" "RUSTDOCFLAGS=--cap-lints=warn" "-e" "DOCS_RS=1" "-e" "RUSTC_BOOTSTRAP=1" "-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:b0b074c097205a61b89e8ad263052f976b2b332c4dc5f02aef1fe52501660d6e" "/opt/rustwide/cargo-home/bin/cargo" "+1.86.0" "rustdoc" "--lib" "-Zrustdoc-map" "--config" "build.rustdocflags=[\"--cfg\", \"docsrs\", \"-Z\", \"unstable-options\", \"--document-private-items\"]" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 0fd2c898e17ead002bdebd8ae2b0388b52d88e2924821b14c0c468caf2a82de6
[INFO] running `Command { std: "docker" "start" "-a" "0fd2c898e17ead002bdebd8ae2b0388b52d88e2924821b14c0c468caf2a82de6", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.94
[INFO] [stderr]    Compiling quote v1.0.40
[INFO] [stderr]    Compiling syn v2.0.100
[INFO] [stdout] error: failed to write to `/opt/rustwide/target/debug/deps/rmetaqRAtN1/lib.rmeta`: No space left on device (os error 28)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `syn` (lib) due to 1 previous error
[INFO] running `Command { std: "docker" "inspect" "0fd2c898e17ead002bdebd8ae2b0388b52d88e2924821b14c0c468caf2a82de6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0fd2c898e17ead002bdebd8ae2b0388b52d88e2924821b14c0c468caf2a82de6", kill_on_drop: false }`
[INFO] [stdout] 0fd2c898e17ead002bdebd8ae2b0388b52d88e2924821b14c0c468caf2a82de6