[INFO] fetching crate arkts 0.1.0...
[INFO] testing arkts-0.1.0 against try#c2e32f1c9652b13ed99608599c1e855462f421f3 for pr-146098-7
[INFO] extracting crate arkts 0.1.0 into /workspace/builds/worker-4-tc2/source
[INFO] started tweaking crates.io crate arkts 0.1.0
[INFO] removed 0 missing tests
[INFO] finished tweaking crates.io crate arkts 0.1.0
[INFO] tweaked toml for crates.io crate arkts 0.1.0 written to /workspace/builds/worker-4-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate arkts 0.1.0 on toolchain c2e32f1c9652b13ed99608599c1e855462f421f3
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c2e32f1c9652b13ed99608599c1e855462f421f3" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate arkts 0.1.0 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" "+c2e32f1c9652b13ed99608599c1e855462f421f3" "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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+c2e32f1c9652b13ed99608599c1e855462f421f3" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 8738958b283cf06e84a23a0e91b1e8149149625a3644a4d8246c6f317c8e1cff
[INFO] running `Command { std: "docker" "start" "-a" "8738958b283cf06e84a23a0e91b1e8149149625a3644a4d8246c6f317c8e1cff", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "8738958b283cf06e84a23a0e91b1e8149149625a3644a4d8246c6f317c8e1cff", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8738958b283cf06e84a23a0e91b1e8149149625a3644a4d8246c6f317c8e1cff", kill_on_drop: false }`
[INFO] [stdout] 8738958b283cf06e84a23a0e91b1e8149149625a3644a4d8246c6f317c8e1cff
[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=forbid" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+c2e32f1c9652b13ed99608599c1e855462f421f3" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] ed03c99dab5e95a09347489ca30e67291cca585df7adb49fc0bb6fde86daee3e
[INFO] running `Command { std: "docker" "start" "-a" "ed03c99dab5e95a09347489ca30e67291cca585df7adb49fc0bb6fde86daee3e", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.103
[INFO] [stderr]    Compiling quote v1.0.41
[INFO] [stderr]    Compiling syn v2.0.108
[INFO] [stderr]    Compiling serde_derive v1.0.228
[INFO] [stderr]    Compiling serde v1.0.228
[INFO] [stderr]    Compiling serde_yaml v0.9.34+deprecated
[INFO] [stderr]    Compiling arkts v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] error: failed to run custom build command for `arkts v0.1.0 (/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/arkts-302934d5d46d8076/build-script-build` (exit status: 1)
[INFO] [stderr]   --- stdout
[INFO] [stderr]   cargo:rerun-if-changed=specs/isa.yaml
[INFO] [stderr] 
[INFO] [stderr]   --- stderr
[INFO] [stderr]   DEBUG: Attempting to parse: specs/isa.yaml
[INFO] [stderr]   DEBUG: Successfully parsed YAML
[INFO] [stderr]   DEBUG: Built 221 plain and 105 prefixed instructions
[INFO] [stderr]   Error: Os { code: 30, kind: ReadOnlyFilesystem, message: "Read-only file system" }
[INFO] running `Command { std: "docker" "inspect" "ed03c99dab5e95a09347489ca30e67291cca585df7adb49fc0bb6fde86daee3e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ed03c99dab5e95a09347489ca30e67291cca585df7adb49fc0bb6fde86daee3e", kill_on_drop: false }`
[INFO] [stdout] ed03c99dab5e95a09347489ca30e67291cca585df7adb49fc0bb6fde86daee3e