[INFO] updating cached repository graememcc/netStack
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/graememcc/netStack
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/graememcc/netStack" "work/ex/beta-1.37-6/sources/1.36.0/gh/graememcc/netStack"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.37-6/sources/1.36.0/gh/graememcc/netStack'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/graememcc/netStack" "work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/graememcc/netStack"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/graememcc/netStack'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] f562813a0a85ab4ca24223c4435278fe538fdb10
[INFO] sha for GitHub repo graememcc/netStack: f562813a0a85ab4ca24223c4435278fe538fdb10
[INFO] validating manifest of graememcc/netStack on toolchain 1.36.0
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.36.0" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of graememcc/netStack on toolchain beta-2019-07-23
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-07-23" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing graememcc/netStack
[INFO] finished frobbing graememcc/netStack
[INFO] frobbed toml for graememcc/netStack written to work/ex/beta-1.37-6/sources/1.36.0/gh/graememcc/netStack/Cargo.toml
[INFO] started frobbing graememcc/netStack
[INFO] finished frobbing graememcc/netStack
[INFO] frobbed toml for graememcc/netStack written to work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/graememcc/netStack/Cargo.toml
[INFO] crate graememcc/netStack already has a lockfile, it will not be regenerated
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.36.0" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-07-23" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] testing graememcc/netStack against 1.36.0 for beta-1.37-6
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-4/1.36.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/1.36.0/gh/graememcc/netStack:/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" "+1.36.0" "build" "--frozen"`
[INFO] [stdout] 43d53d6d1329b3cd8204c966d76e5524909d39b83e6a6513e60c1a5535e6143a
[INFO] running `"docker" "start" "-a" "43d53d6d1329b3cd8204c966d76e5524909d39b83e6a6513e60c1a5535e6143a"`
[INFO] [stderr]    Compiling rust_ether1 v0.0.1 (/opt/crater/workdir)
[INFO] [stderr] error: couldn't read make -C src/ioctl: No such file or directory (os error 2)
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to previous error
[INFO] [stderr] 
[INFO] [stderr] error: Could not compile `rust_ether1`.
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `"docker" "inspect" "43d53d6d1329b3cd8204c966d76e5524909d39b83e6a6513e60c1a5535e6143a"`
[INFO] running `"docker" "rm" "-f" "43d53d6d1329b3cd8204c966d76e5524909d39b83e6a6513e60c1a5535e6143a"`
[INFO] [stdout] 43d53d6d1329b3cd8204c966d76e5524909d39b83e6a6513e60c1a5535e6143a