[INFO] fetching crate symm 0.7.2...
[INFO] testing symm-0.7.2 against beta-2025-09-21 for beta-1.91-3
[INFO] extracting crate symm 0.7.2 into /workspace/builds/worker-2-tc2/source
[INFO] started tweaking crates.io crate symm 0.7.2
[INFO] finished tweaking crates.io crate symm 0.7.2
[INFO] tweaked toml for crates.io crate symm 0.7.2 written to /workspace/builds/worker-2-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate symm 0.7.2 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 symm 0.7.2 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-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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] 95d3c275c6b55f9f7a42d2ce93c123c981f4c93918aabd87ab770620045a3506
[INFO] running `Command { std: "docker" "start" "-a" "95d3c275c6b55f9f7a42d2ce93c123c981f4c93918aabd87ab770620045a3506", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "95d3c275c6b55f9f7a42d2ce93c123c981f4c93918aabd87ab770620045a3506", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "95d3c275c6b55f9f7a42d2ce93c123c981f4c93918aabd87ab770620045a3506", kill_on_drop: false }`
[INFO] [stdout] 95d3c275c6b55f9f7a42d2ce93c123c981f4c93918aabd87ab770620045a3506
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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] e44144ac7748c100c2003826cd352e06480263c62de84f40016ac9ed7fcb17e0
[INFO] running `Command { std: "docker" "start" "-a" "e44144ac7748c100c2003826cd352e06480263c62de84f40016ac9ed7fcb17e0", kill_on_drop: false }`
[INFO] [stderr]    Compiling serde_core v1.0.225
[INFO] [stderr]    Compiling clap_lex v0.7.4
[INFO] [stderr]    Compiling winnow v0.7.13
[INFO] [stderr]    Compiling anstream v0.6.18
[INFO] [stderr]    Compiling serde v1.0.225
[INFO] [stderr]    Compiling toml_writer v1.0.3
[INFO] [stderr]    Compiling clap_derive v4.5.47
[INFO] [stderr]    Compiling serde_derive v1.0.225
[INFO] [stderr]    Compiling clap_builder v4.5.48
[INFO] [stderr]    Compiling dirs-sys v0.5.0
[INFO] [stderr]    Compiling itertools v0.14.0
[INFO] [stderr]    Compiling dirs v6.0.0
[INFO] [stderr]    Compiling toml_parser v1.0.3
[INFO] [stderr]    Compiling clap v4.5.48
[INFO] [stderr]    Compiling clap_complete v4.5.58
[INFO] [stderr]    Compiling toml_datetime v0.7.2
[INFO] [stderr]    Compiling serde_spanned v1.0.2
[INFO] [stderr]    Compiling toml v0.9.7
[INFO] [stderr]    Compiling symm v0.7.2 (/opt/rustwide/workdir)
[INFO] [stderr] error: failed to run custom build command for `symm v0.7.2 (/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/symm-102c93fb1fc2e06a/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" "e44144ac7748c100c2003826cd352e06480263c62de84f40016ac9ed7fcb17e0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e44144ac7748c100c2003826cd352e06480263c62de84f40016ac9ed7fcb17e0", kill_on_drop: false }`
[INFO] [stdout] e44144ac7748c100c2003826cd352e06480263c62de84f40016ac9ed7fcb17e0