[INFO] fetching crate serde-nothing 0.1.1...
[INFO] testing serde-nothing-0.1.1 against beta-2026-01-20 for beta-1.94-1
[INFO] extracting crate serde-nothing 0.1.1 into /workspace/builds/worker-4-tc2/source
[INFO] started tweaking crates.io crate serde-nothing 0.1.1
[INFO] finished tweaking crates.io crate serde-nothing 0.1.1
[INFO] tweaked toml for crates.io crate serde-nothing 0.1.1 written to /workspace/builds/worker-4-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate serde-nothing 0.1.1 on toolchain beta-2026-01-20
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2026-01-20" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2026-01-20" "generate-lockfile" "--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]      Locking 7 packages to latest compatible versions
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2026-01-20" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/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@sha256:98afbf2d16093dec2546ff8915fddc74e65664aa03fc460b3712b1c2c54a33e4" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2026-01-20" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 84b24429820c900b32bd6858cb68a6c27cd19b52fd5dea65247654b2d2615f48
[INFO] running `Command { std: "docker" "start" "-a" "84b24429820c900b32bd6858cb68a6c27cd19b52fd5dea65247654b2d2615f48", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "84b24429820c900b32bd6858cb68a6c27cd19b52fd5dea65247654b2d2615f48", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "84b24429820c900b32bd6858cb68a6c27cd19b52fd5dea65247654b2d2615f48", kill_on_drop: false }`
[INFO] [stdout] 84b24429820c900b32bd6858cb68a6c27cd19b52fd5dea65247654b2d2615f48
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/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@sha256:98afbf2d16093dec2546ff8915fddc74e65664aa03fc460b3712b1c2c54a33e4" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2026-01-20" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] fe2fcd47136d05564e70f1ef1b33f34d707ebc16ee502a62441f1697ad52e1e1
[INFO] running `Command { std: "docker" "start" "-a" "fe2fcd47136d05564e70f1ef1b33f34d707ebc16ee502a62441f1697ad52e1e1", kill_on_drop: false }`
[INFO] [stderr]    Compiling serde v1.0.228
[INFO] [stderr] error: failed to write `/opt/rustwide/target/debug/build/serde-8a673297de1f8ec4/output`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   No space left on device (os error 28)
[INFO] running `Command { std: "docker" "inspect" "fe2fcd47136d05564e70f1ef1b33f34d707ebc16ee502a62441f1697ad52e1e1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "fe2fcd47136d05564e70f1ef1b33f34d707ebc16ee502a62441f1697ad52e1e1", kill_on_drop: false }`
[INFO] [stdout] fe2fcd47136d05564e70f1ef1b33f34d707ebc16ee502a62441f1697ad52e1e1
