[INFO] updating cached repository mrzombi3/rustlingspractice
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/mrzombi3/rustlingspractice
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/mrzombi3/rustlingspractice" "work/ex/beta-1.38-1/sources/1.37.0/gh/mrzombi3/rustlingspractice"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/1.37.0/gh/mrzombi3/rustlingspractice'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/mrzombi3/rustlingspractice" "work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/mrzombi3/rustlingspractice"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/mrzombi3/rustlingspractice'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 40a52a65327db774f483d80ee25392db4540b860
[INFO] sha for GitHub repo mrzombi3/rustlingspractice: 40a52a65327db774f483d80ee25392db4540b860
[INFO] validating manifest of mrzombi3/rustlingspractice 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 mrzombi3/rustlingspractice 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 mrzombi3/rustlingspractice
[INFO] finished frobbing mrzombi3/rustlingspractice
[INFO] frobbed toml for mrzombi3/rustlingspractice written to work/ex/beta-1.38-1/sources/1.37.0/gh/mrzombi3/rustlingspractice/Cargo.toml
[INFO] started frobbing mrzombi3/rustlingspractice
[INFO] finished frobbing mrzombi3/rustlingspractice
[INFO] frobbed toml for mrzombi3/rustlingspractice written to work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/mrzombi3/rustlingspractice/Cargo.toml
[INFO] crate mrzombi3/rustlingspractice 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 mrzombi3/rustlingspractice 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-2/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/mrzombi3/rustlingspractice:/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] 758a8b9c9219f278ea727532cdc637c277678780cba28bc887c822cfed8c4fc2
[INFO] running `"docker" "start" "-a" "758a8b9c9219f278ea727532cdc637c277678780cba28bc887c822cfed8c4fc2"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling clicolors-control v0.2.0
[INFO] [stderr]    Compiling mio v0.6.19
[INFO] [stderr]    Compiling inotify v0.6.1
[INFO] [stderr]    Compiling clap v2.33.0
[INFO] [stderr]    Compiling serde_derive v1.0.92
[INFO] [stderr]    Compiling indicatif v0.9.0
[INFO] [stderr]    Compiling console v0.6.2
[INFO] [stderr]    Compiling mio-extras v2.0.5
[INFO] [stderr]    Compiling notify v4.0.12
[INFO] [stderr]    Compiling serde v1.0.92
[INFO] [stderr]    Compiling toml v0.4.10
[INFO] [stderr]    Compiling rustlings v1.4.0 (/opt/crater/workdir)
[INFO] [stderr] error: couldn't read src/main.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 `rustlings`.
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `"docker" "inspect" "758a8b9c9219f278ea727532cdc637c277678780cba28bc887c822cfed8c4fc2"`
[INFO] running `"docker" "rm" "-f" "758a8b9c9219f278ea727532cdc637c277678780cba28bc887c822cfed8c4fc2"`
[INFO] [stdout] 758a8b9c9219f278ea727532cdc637c277678780cba28bc887c822cfed8c4fc2