[INFO] updating cached repository hdemon/kiko
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/hdemon/kiko
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/hdemon/kiko" "work/ex/beta-1.38-1/sources/1.37.0/gh/hdemon/kiko"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/1.37.0/gh/hdemon/kiko'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/hdemon/kiko" "work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/hdemon/kiko"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/hdemon/kiko'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 2f25d1640ceb98e9917d0bd662155362a911a92c
[INFO] sha for GitHub repo hdemon/kiko: 2f25d1640ceb98e9917d0bd662155362a911a92c
[INFO] validating manifest of hdemon/kiko 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 hdemon/kiko 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 hdemon/kiko
[INFO] finished frobbing hdemon/kiko
[INFO] frobbed toml for hdemon/kiko written to work/ex/beta-1.38-1/sources/1.37.0/gh/hdemon/kiko/Cargo.toml
[INFO] started frobbing hdemon/kiko
[INFO] finished frobbing hdemon/kiko
[INFO] frobbed toml for hdemon/kiko written to work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/hdemon/kiko/Cargo.toml
[INFO] crate hdemon/kiko 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] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-08-13" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] testing hdemon/kiko against 1.37.0 for beta-1.38-1
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-0/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/hdemon/kiko:/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" "+1.37.0" "build" "--frozen"`
[INFO] [stdout] 4b6b8644d3e3da6dc4ef0e5bc72d1cd0b15e4139adee015779f09b63439f42bb
[INFO] running `"docker" "start" "-a" "4b6b8644d3e3da6dc4ef0e5bc72d1cd0b15e4139adee015779f09b63439f42bb"`
[INFO] [stderr]    Compiling kiko v0.1.0 (/opt/crater/workdir)
[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 `kiko`.
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `"docker" "inspect" "4b6b8644d3e3da6dc4ef0e5bc72d1cd0b15e4139adee015779f09b63439f42bb"`
[INFO] running `"docker" "rm" "-f" "4b6b8644d3e3da6dc4ef0e5bc72d1cd0b15e4139adee015779f09b63439f42bb"`
[INFO] [stdout] 4b6b8644d3e3da6dc4ef0e5bc72d1cd0b15e4139adee015779f09b63439f42bb