[INFO] updating cached repository dac456/scuti
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/dac456/scuti
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/dac456/scuti" "work/ex/beta-1.37-6/sources/1.36.0/gh/dac456/scuti"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.37-6/sources/1.36.0/gh/dac456/scuti'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/dac456/scuti" "work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/dac456/scuti"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/dac456/scuti'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 0cd6afb0bd30b188e5005f12c8a9338254936172
[INFO] sha for GitHub repo dac456/scuti: 0cd6afb0bd30b188e5005f12c8a9338254936172
[INFO] validating manifest of dac456/scuti 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 dac456/scuti 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 dac456/scuti
[INFO] finished frobbing dac456/scuti
[INFO] frobbed toml for dac456/scuti written to work/ex/beta-1.37-6/sources/1.36.0/gh/dac456/scuti/Cargo.toml
[INFO] started frobbing dac456/scuti
[INFO] finished frobbing dac456/scuti
[INFO] frobbed toml for dac456/scuti written to work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/dac456/scuti/Cargo.toml
[INFO] crate dac456/scuti 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 dac456/scuti against beta-2019-07-23 for beta-1.37-6
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-3/beta-2019-07-23:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/dac456/scuti:/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-2019-07-23" "build" "--frozen"`
[INFO] [stdout] 0ff6e4ed97ef3fe6920c6ded26d687852944dfe4367536da14fa1969287328fe
[INFO] running `"docker" "start" "-a" "0ff6e4ed97ef3fe6920c6ded26d687852944dfe4367536da14fa1969287328fe"`
[INFO] [stderr]    Compiling piston-float v0.0.1
[INFO] [stderr]    Compiling scuti v0.1.0 (/opt/crater/workdir)
[INFO] [stderr]    Compiling num-complex v0.1.36
[INFO] [stderr]    Compiling num-bigint v0.1.37
[INFO] [stderr]    Compiling semver v0.2.3
[INFO] [stderr] error: couldn't read build.rs: 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 `scuti`.
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: build failed
[INFO] running `"docker" "inspect" "0ff6e4ed97ef3fe6920c6ded26d687852944dfe4367536da14fa1969287328fe"`
[INFO] running `"docker" "rm" "-f" "0ff6e4ed97ef3fe6920c6ded26d687852944dfe4367536da14fa1969287328fe"`
[INFO] [stdout] 0ff6e4ed97ef3fe6920c6ded26d687852944dfe4367536da14fa1969287328fe