[INFO] fetching crate underdose 0.0.6...
[INFO] testing underdose-0.0.6 against beta-2025-09-21 for beta-1.91-3
[INFO] extracting crate underdose 0.0.6 into /workspace/builds/worker-4-tc2/source
[INFO] started tweaking crates.io crate underdose 0.0.6
[INFO] finished tweaking crates.io crate underdose 0.0.6
[INFO] tweaked toml for crates.io crate underdose 0.0.6 written to /workspace/builds/worker-4-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate underdose 0.0.6 on toolchain beta-2025-09-21
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2025-09-21" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate underdose 0.0.6 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" "+beta-2025-09-21" "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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2025-09-21" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 5e23393fa242e195d6ed975c55e38d47932561ca2177df3b5d15125093313ee0
[INFO] running `Command { std: "docker" "start" "-a" "5e23393fa242e195d6ed975c55e38d47932561ca2177df3b5d15125093313ee0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "5e23393fa242e195d6ed975c55e38d47932561ca2177df3b5d15125093313ee0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5e23393fa242e195d6ed975c55e38d47932561ca2177df3b5d15125093313ee0", kill_on_drop: false }`
[INFO] [stdout] 5e23393fa242e195d6ed975c55e38d47932561ca2177df3b5d15125093313ee0
[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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2025-09-21" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 2c8982fb17a28b5c0299eba1e969021b98948d11c2b02f8f99827026f029fc1b
[INFO] running `Command { std: "docker" "start" "-a" "2c8982fb17a28b5c0299eba1e969021b98948d11c2b02f8f99827026f029fc1b", kill_on_drop: false }`
[INFO] [stderr]    Compiling aho-corasick v1.1.3
[INFO] [stderr]    Compiling regex-syntax v0.8.5
[INFO] [stderr]    Compiling syn v2.0.104
[INFO] [stderr]    Compiling jobserver v0.1.33
[INFO] [stderr]    Compiling smallvec v1.15.1
[INFO] [stderr]    Compiling dirs-sys v0.5.0
[INFO] [stderr]    Compiling log v0.4.27
[INFO] [stderr]    Compiling hashbrown v0.15.4
[INFO] [stderr]    Compiling cc v1.2.27
[INFO] [stderr]    Compiling winnow v0.7.11
[INFO] [stderr]    Compiling toml_write v0.1.2
[INFO] [stderr]    Compiling getrandom v0.3.3
[INFO] [stderr]    Compiling deranged v0.4.0
[INFO] [stderr]    Compiling time-core v0.1.4
[INFO] [stderr]    Compiling jiff v0.2.15
[INFO] [stderr]    Compiling anyhow v1.0.98
[INFO] [stderr]    Compiling atomic v0.6.1
[INFO] [stderr]    Compiling regex-automata v0.4.9
[INFO] [stderr]    Compiling time v0.3.41
[INFO] [stderr]    Compiling libz-sys v1.1.22
[INFO] [stderr]    Compiling openssl-sys v0.9.109
[INFO] [stderr]    Compiling libssh2-sys v0.3.1
[INFO] [stderr]    Compiling libgit2-sys v0.18.2+1.9.1
[INFO] [stderr]    Compiling directories v6.0.0
[INFO] [stderr]    Compiling dirs v6.0.0
[INFO] [stderr]    Compiling os_str_bytes v6.6.1
[INFO] [stderr]    Compiling openssl-probe v0.1.6
[INFO] [stderr]    Compiling fslock v0.2.1
[INFO] [stderr]    Compiling colored v3.0.0
[INFO] [stderr]    Compiling synstructure v0.13.2
[INFO] [stderr]    Compiling regex v1.11.1
[INFO] [stderr]    Compiling bstr v1.12.0
[INFO] [stderr]    Compiling env_filter v0.1.3
[INFO] [stderr]    Compiling shellexpand v3.1.1
[INFO] [stderr]    Compiling zerofrom-derive v0.1.6
[INFO] [stderr]    Compiling yoke-derive v0.8.0
[INFO] [stderr]    Compiling zerovec-derive v0.11.1
[INFO] [stderr]    Compiling displaydoc v0.2.5
[INFO] [stderr]    Compiling serde_derive v1.0.219
[INFO] [stderr]    Compiling clap_derive v4.5.40
[INFO] [stderr]    Compiling thiserror-impl v1.0.69
[INFO] [stderr]    Compiling env_logger v0.11.8
[INFO] [stderr]    Compiling zerofrom v0.1.6
[INFO] [stderr]    Compiling yoke v0.8.0
[INFO] [stderr]    Compiling zerovec v0.11.2
[INFO] [stderr]    Compiling zerotrie v0.2.2
[INFO] [stderr]    Compiling thiserror v1.0.69
[INFO] [stderr]    Compiling rustygit v0.5.0
[INFO] [stderr]    Compiling tinystr v0.8.1
[INFO] [stderr]    Compiling icu_locale_core v2.0.0
[INFO] [stderr]    Compiling potential_utf v0.1.2
[INFO] [stderr]    Compiling icu_collections v2.0.0
[INFO] [stderr]    Compiling icu_provider v2.0.0
[INFO] [stderr]    Compiling clap v4.5.40
[INFO] [stderr]    Compiling icu_normalizer v2.0.0
[INFO] [stderr]    Compiling icu_properties v2.0.1
[INFO] [stderr]    Compiling clap_complete v4.5.54
[INFO] [stderr]    Compiling underdose v0.0.6 (/opt/rustwide/workdir)
[INFO] [stderr]    Compiling serde v1.0.219
[INFO] [stderr] error: failed to run custom build command for `underdose v0.0.6 (/opt/rustwide/workdir)`
[INFO] [stderr] note: To improve backtraces for build dependencies, set the CARGO_PROFILE_DEV_BUILD_OVERRIDE_DEBUG=true environment variable to enable debug information generation.
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `/opt/rustwide/target/debug/build/underdose-b43eac9782ee1926/build-script-build` (exit status: 1)
[INFO] [stderr]   --- stderr
[INFO] [stderr]   Error: Os { code: 30, kind: ReadOnlyFilesystem, message: "Read-only file system" }
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] running `Command { std: "docker" "inspect" "2c8982fb17a28b5c0299eba1e969021b98948d11c2b02f8f99827026f029fc1b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2c8982fb17a28b5c0299eba1e969021b98948d11c2b02f8f99827026f029fc1b", kill_on_drop: false }`
[INFO] [stdout] 2c8982fb17a28b5c0299eba1e969021b98948d11c2b02f8f99827026f029fc1b