[INFO] updating cached repository szeka94/rust-examples
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/szeka94/rust-examples
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/szeka94/rust-examples" "work/ex/beta-1.38-1/sources/1.37.0/gh/szeka94/rust-examples"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/1.37.0/gh/szeka94/rust-examples'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/szeka94/rust-examples" "work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/szeka94/rust-examples"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/szeka94/rust-examples'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] ec2fa401d086248edced5a96eb285a4a874ba0cd
[INFO] sha for GitHub repo szeka94/rust-examples: ec2fa401d086248edced5a96eb285a4a874ba0cd
[INFO] validating manifest of szeka94/rust-examples 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 szeka94/rust-examples 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 szeka94/rust-examples
[INFO] finished frobbing szeka94/rust-examples
[INFO] frobbed toml for szeka94/rust-examples written to work/ex/beta-1.38-1/sources/1.37.0/gh/szeka94/rust-examples/Cargo.toml
[INFO] started frobbing szeka94/rust-examples
[INFO] finished frobbing szeka94/rust-examples
[INFO] frobbed toml for szeka94/rust-examples written to work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/szeka94/rust-examples/Cargo.toml
[INFO] crate szeka94/rust-examples 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 szeka94/rust-examples 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-3/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/szeka94/rust-examples:/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] 96f1eba1b0081890912241eb83ef37251a3aaa3c67db60918d0cfea430591c35
[INFO] running `"docker" "start" "-a" "96f1eba1b0081890912241eb83ef37251a3aaa3c67db60918d0cfea430591c35"`
[INFO] [stderr]    Compiling rust_by_example v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] error[E0463]: can't find crate for `crate_lib`
[INFO] [stderr]  --> src/crate_caller.rs:1:1
[INFO] [stderr]   |
[INFO] [stderr] 1 | extern crate crate_lib;
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^ can't find crate
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to previous error
[INFO] [stderr] 
[INFO] [stderr] For more information about this error, try `rustc --explain E0463`.
[INFO] [stderr] error: Could not compile `rust_by_example`.
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `"docker" "inspect" "96f1eba1b0081890912241eb83ef37251a3aaa3c67db60918d0cfea430591c35"`
[INFO] running `"docker" "rm" "-f" "96f1eba1b0081890912241eb83ef37251a3aaa3c67db60918d0cfea430591c35"`
[INFO] [stdout] 96f1eba1b0081890912241eb83ef37251a3aaa3c67db60918d0cfea430591c35