[INFO] fetching crate libpreflate-sys 0.1.0...
[INFO] testing libpreflate-sys-0.1.0 against try#b83b707f97d809763b7861afa7638871f3339a33 for pr-145838-1
[INFO] extracting crate libpreflate-sys 0.1.0 into /workspace/builds/worker-1-tc2/source
[INFO] started tweaking crates.io crate libpreflate-sys 0.1.0
[INFO] finished tweaking crates.io crate libpreflate-sys 0.1.0
[INFO] tweaked toml for crates.io crate libpreflate-sys 0.1.0 written to /workspace/builds/worker-1-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate libpreflate-sys 0.1.0 on toolchain b83b707f97d809763b7861afa7638871f3339a33
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+b83b707f97d809763b7861afa7638871f3339a33" "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" "+b83b707f97d809763b7861afa7638871f3339a33" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]      Locking 41 packages to latest compatible versions
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+b83b707f97d809763b7861afa7638871f3339a33" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+b83b707f97d809763b7861afa7638871f3339a33" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 5c1b1ea0cc1d8d3ae63ab2bdaf0859ecbbda744e800839a7ece3d2c086d48faf
[INFO] running `Command { std: "docker" "start" "-a" "5c1b1ea0cc1d8d3ae63ab2bdaf0859ecbbda744e800839a7ece3d2c086d48faf", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "5c1b1ea0cc1d8d3ae63ab2bdaf0859ecbbda744e800839a7ece3d2c086d48faf", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5c1b1ea0cc1d8d3ae63ab2bdaf0859ecbbda744e800839a7ece3d2c086d48faf", kill_on_drop: false }`
[INFO] [stdout] 5c1b1ea0cc1d8d3ae63ab2bdaf0859ecbbda744e800839a7ece3d2c086d48faf
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+b83b707f97d809763b7861afa7638871f3339a33" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] db28815d947746e00d7a1ec26a7d9a4725ff8d9d78d6c9e0f596f561784a86db
[INFO] running `Command { std: "docker" "start" "-a" "db28815d947746e00d7a1ec26a7d9a4725ff8d9d78d6c9e0f596f561784a86db", kill_on_drop: false }`
[INFO] [stderr]    Compiling shlex v1.3.0
[INFO] [stderr]    Compiling proc-macro2 v1.0.101
[INFO] [stderr]    Compiling unicode-ident v1.0.18
[INFO] [stderr]    Compiling hashbrown v0.15.5
[INFO] [stderr]    Compiling equivalent v1.0.2
[INFO] [stderr]    Compiling scratch v1.0.9
[INFO] [stderr]    Compiling termcolor v1.4.1
[INFO] [stderr]    Compiling cxxbridge-flags v1.0.173
[INFO] [stderr]    Compiling unicode-width v0.2.1
[INFO] [stderr]    Compiling rustversion v1.0.22
[INFO] [stderr]    Compiling foldhash v0.2.0
[INFO] [stderr]    Compiling cc v1.2.34
[INFO] [stderr]    Compiling codespan-reporting v0.12.0
[INFO] [stderr]    Compiling indexmap v2.11.0
[INFO] [stderr]    Compiling cmake v0.1.54
[INFO] [stderr]    Compiling quote v1.0.40
[INFO] [stderr]    Compiling link-cplusplus v1.0.10
[INFO] [stderr]    Compiling cxx v1.0.173
[INFO] [stderr]    Compiling syn v2.0.106
[INFO] [stderr]    Compiling cxx-build v1.0.173
[INFO] [stderr]    Compiling cxxbridge-macro v1.0.173
[INFO] [stderr]    Compiling libpreflate-sys v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] error: failed to run custom build command for `libpreflate-sys 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/libpreflate-sys-402a981446b2ae94/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" "db28815d947746e00d7a1ec26a7d9a4725ff8d9d78d6c9e0f596f561784a86db", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "db28815d947746e00d7a1ec26a7d9a4725ff8d9d78d6c9e0f596f561784a86db", kill_on_drop: false }`
[INFO] [stdout] db28815d947746e00d7a1ec26a7d9a4725ff8d9d78d6c9e0f596f561784a86db