[INFO] fetching crate preflate-bindings 0.1.0...
[INFO] testing preflate-bindings-0.1.0 against master#c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38 for pr-146098-8
[INFO] extracting crate preflate-bindings 0.1.0 into /workspace/builds/worker-3-tc1/source
[INFO] started tweaking crates.io crate preflate-bindings 0.1.0
[INFO] finished tweaking crates.io crate preflate-bindings 0.1.0
[INFO] tweaked toml for crates.io crate preflate-bindings 0.1.0 written to /workspace/builds/worker-3-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate preflate-bindings 0.1.0 on toolchain c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38" "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" "+c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 43 packages to latest compatible versions
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded codespan-reporting v0.13.1
[INFO] [stderr]   Downloaded cxxbridge-flags v1.0.188
[INFO] [stderr]   Downloaded cxxbridge-macro v1.0.188
[INFO] [stderr]   Downloaded libpreflate-sys v0.1.0
[INFO] [stderr]   Downloaded cxx v1.0.188
[INFO] [stderr]   Downloaded cxx-build v1.0.188
[INFO] [stderr]   Downloaded cxxbridge-cmd v1.0.188
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/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" "+c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 749ae02c124c8a7d12b7cb6d4cdd745f2b570783b14250c93a6eb8d10f714376
[INFO] running `Command { std: "docker" "start" "-a" "749ae02c124c8a7d12b7cb6d4cdd745f2b570783b14250c93a6eb8d10f714376", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "749ae02c124c8a7d12b7cb6d4cdd745f2b570783b14250c93a6eb8d10f714376", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "749ae02c124c8a7d12b7cb6d4cdd745f2b570783b14250c93a6eb8d10f714376", kill_on_drop: false }`
[INFO] [stdout] 749ae02c124c8a7d12b7cb6d4cdd745f2b570783b14250c93a6eb8d10f714376
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/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" "+c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 9ba39e59ea12d68bb946a03da1319212a9a042cc57b3520c40ef1f72c85dde9d
[INFO] running `Command { std: "docker" "start" "-a" "9ba39e59ea12d68bb946a03da1319212a9a042cc57b3520c40ef1f72c85dde9d", kill_on_drop: false }`
[INFO] [stderr]    Compiling scratch v1.0.9
[INFO] [stderr]    Compiling termcolor v1.4.1
[INFO] [stderr]    Compiling cxxbridge-flags v1.0.188
[INFO] [stderr]    Compiling unicode-width v0.2.2
[INFO] [stderr]    Compiling foldhash v0.2.0
[INFO] [stderr]    Compiling proc-macro2 v1.0.103
[INFO] [stderr]    Compiling link-cplusplus v1.0.12
[INFO] [stderr]    Compiling cxx v1.0.188
[INFO] [stderr]    Compiling codespan-reporting v0.13.1
[INFO] [stderr]    Compiling quote v1.0.42
[INFO] [stderr]    Compiling syn v2.0.110
[INFO] [stderr]    Compiling cxx-build v1.0.188
[INFO] [stderr]    Compiling cxxbridge-macro v1.0.188
[INFO] [stderr]    Compiling libpreflate-sys v0.1.0
[INFO] [stderr] error: failed to run custom build command for `libpreflate-sys v0.1.0`
[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/libpreflate-sys-4d60a8dc28575d9f/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" "9ba39e59ea12d68bb946a03da1319212a9a042cc57b3520c40ef1f72c85dde9d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9ba39e59ea12d68bb946a03da1319212a9a042cc57b3520c40ef1f72c85dde9d", kill_on_drop: false }`
[INFO] [stdout] 9ba39e59ea12d68bb946a03da1319212a9a042cc57b3520c40ef1f72c85dde9d