[INFO] updating cached repository geostran/risp
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/geostran/risp
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/geostran/risp" "work/ex/beta-1.38-1/sources/1.37.0/gh/geostran/risp"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/1.37.0/gh/geostran/risp'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/geostran/risp" "work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/geostran/risp"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/geostran/risp'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 3f324a113fc399ff85c1d21163d33ba86d2baf02
[INFO] sha for GitHub repo geostran/risp: 3f324a113fc399ff85c1d21163d33ba86d2baf02
[INFO] validating manifest of geostran/risp on toolchain 1.37.0
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.37.0" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of geostran/risp on toolchain beta-2019-08-13
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-08-13" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing geostran/risp
[INFO] finished frobbing geostran/risp
[INFO] frobbed toml for geostran/risp written to work/ex/beta-1.38-1/sources/1.37.0/gh/geostran/risp/Cargo.toml
[INFO] started frobbing geostran/risp
[INFO] finished frobbing geostran/risp
[INFO] frobbed toml for geostran/risp written to work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/geostran/risp/Cargo.toml
[INFO] crate geostran/risp already has a lockfile, it will not be regenerated
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.37.0" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-08-13" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] testing geostran/risp against beta-2019-08-13 for beta-1.38-1
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-1/beta-2019-08-13:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/geostran/risp:/opt/crater/workdir:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/opt/crater/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/opt/crater/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/crater/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/crater/cargo-home" "-e" "RUSTUP_HOME=/opt/crater/rustup-home" "-w" "/opt/crater/workdir" "-m" "1536M" "--network" "none" "rustops/crates-build-env" "/opt/crater/cargo-home/bin/cargo" "+beta-2019-08-13" "build" "--frozen"`
[INFO] [stdout] 41ef1ab6bc1848cee79b50ba4dac085d6d91aa56cda0cb1a0a1f6062f30c8ac1
[INFO] running `"docker" "start" "-a" "41ef1ab6bc1848cee79b50ba4dac085d6d91aa56cda0cb1a0a1f6062f30c8ac1"`
[INFO] [stderr]    Compiling nix v0.13.1
[INFO] [stderr]    Compiling risp v0.1.0 (/opt/crater/workdir)
[INFO] [stderr]    Compiling dirs v1.0.5
[INFO] [stderr] error: failed to run custom build command for `risp v0.1.0 (/opt/crater/workdir)`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `/opt/crater/target/debug/build/risp-7818a68eb5f237a2/build-script-build` (exit code: 1)
[INFO] [stderr] --- stderr
[INFO] [stderr] Error: Os { code: 30, kind: Other, message: "Read-only file system" }
[INFO] [stderr] 
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: build failed
[INFO] running `"docker" "inspect" "41ef1ab6bc1848cee79b50ba4dac085d6d91aa56cda0cb1a0a1f6062f30c8ac1"`
[INFO] running `"docker" "rm" "-f" "41ef1ab6bc1848cee79b50ba4dac085d6d91aa56cda0cb1a0a1f6062f30c8ac1"`
[INFO] [stdout] 41ef1ab6bc1848cee79b50ba4dac085d6d91aa56cda0cb1a0a1f6062f30c8ac1