[INFO] fetching crate buss-protocol 0.1.0...
[INFO] testing buss-protocol-0.1.0 against beta-2026-03-05 for beta-1.95-1
[INFO] extracting crate buss-protocol 0.1.0 into /workspace/builds/worker-4-tc2/source
[INFO] started tweaking crates.io crate buss-protocol 0.1.0
[INFO] finished tweaking crates.io crate buss-protocol 0.1.0
[INFO] tweaked toml for crates.io crate buss-protocol 0.1.0 written to /workspace/builds/worker-4-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate buss-protocol 0.1.0 on toolchain beta-2026-03-05
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2026-03-05" "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-2026-03-05" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2026-03-05" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2026-03-05" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 1f693d45eebb4a3ba3724a25c9d72b63b99073c7d8a84c810cc184facf871fa7
[INFO] running `Command { std: "docker" "start" "-a" "1f693d45eebb4a3ba3724a25c9d72b63b99073c7d8a84c810cc184facf871fa7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "1f693d45eebb4a3ba3724a25c9d72b63b99073c7d8a84c810cc184facf871fa7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1f693d45eebb4a3ba3724a25c9d72b63b99073c7d8a84c810cc184facf871fa7", kill_on_drop: false }`
[INFO] [stdout] 1f693d45eebb4a3ba3724a25c9d72b63b99073c7d8a84c810cc184facf871fa7
[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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2026-03-05" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] d15f57f24b21f1f2910c53359f4b129dc6431c32c990dff0c5d0906d89b66e2c
[INFO] running `Command { std: "docker" "start" "-a" "d15f57f24b21f1f2910c53359f4b129dc6431c32c990dff0c5d0906d89b66e2c", kill_on_drop: false }`
[INFO] [stderr]    Compiling buss-protocol v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.35s
[INFO] running `Command { std: "docker" "inspect" "d15f57f24b21f1f2910c53359f4b129dc6431c32c990dff0c5d0906d89b66e2c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d15f57f24b21f1f2910c53359f4b129dc6431c32c990dff0c5d0906d89b66e2c", kill_on_drop: false }`
[INFO] [stdout] d15f57f24b21f1f2910c53359f4b129dc6431c32c990dff0c5d0906d89b66e2c
[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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2026-03-05" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 3377492ab363439c0de102826ca1621f9e2389c770e6b921049aa7bba1cea78e
[INFO] running `Command { std: "docker" "start" "-a" "3377492ab363439c0de102826ca1621f9e2389c770e6b921049aa7bba1cea78e", kill_on_drop: false }`
[INFO] [stderr]    Compiling buss-protocol v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.48s
[INFO] running `Command { std: "docker" "inspect" "3377492ab363439c0de102826ca1621f9e2389c770e6b921049aa7bba1cea78e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3377492ab363439c0de102826ca1621f9e2389c770e6b921049aa7bba1cea78e", kill_on_drop: false }`
[INFO] [stdout] 3377492ab363439c0de102826ca1621f9e2389c770e6b921049aa7bba1cea78e
[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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2026-03-05" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 289a9dc400d64328bbf7e4bc8b4e0e1673fe30719ea405421c049bb6123bb19f
[INFO] running `Command { std: "docker" "start" "-a" "289a9dc400d64328bbf7e4bc8b4e0e1673fe30719ea405421c049bb6123bb19f", kill_on_drop: false }`
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/buss_protocol-3e0328e2f2ba9077)
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test tests::skeleton ... FAILED
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout] 
[INFO] [stdout] ---- tests::skeleton stdout ----
[INFO] [stdout] Error: Os { code: 30, kind: ReadOnlyFilesystem, message: "Read-only file system" }
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout]     tests::skeleton
[INFO] [stdout] 
[INFO] [stdout] test result: FAILED. 0 passed; 1 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr] error: test failed, to rerun pass `--lib`
[INFO] running `Command { std: "docker" "inspect" "289a9dc400d64328bbf7e4bc8b4e0e1673fe30719ea405421c049bb6123bb19f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "289a9dc400d64328bbf7e4bc8b4e0e1673fe30719ea405421c049bb6123bb19f", kill_on_drop: false }`
[INFO] [stdout] 289a9dc400d64328bbf7e4bc8b4e0e1673fe30719ea405421c049bb6123bb19f
