[INFO] crate aquaenv 0.1.3 is already in cache
[INFO] extracting crate aquaenv 0.1.3 into work/ex/beta-1.37-6/sources/1.36.0/reg/aquaenv/0.1.3
[INFO] extracting crate aquaenv 0.1.3 into work/ex/beta-1.37-6/sources/beta-2019-07-23/reg/aquaenv/0.1.3
[INFO] validating manifest of aquaenv-0.1.3 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 aquaenv-0.1.3 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 aquaenv-0.1.3
[INFO] finished frobbing aquaenv-0.1.3
[INFO] frobbed toml for aquaenv-0.1.3 written to work/ex/beta-1.37-6/sources/1.36.0/reg/aquaenv/0.1.3/Cargo.toml
[INFO] started frobbing aquaenv-0.1.3
[INFO] finished frobbing aquaenv-0.1.3
[INFO] frobbed toml for aquaenv-0.1.3 written to work/ex/beta-1.37-6/sources/beta-2019-07-23/reg/aquaenv/0.1.3/Cargo.toml
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.36.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-07-23" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[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 aquaenv-0.1.3 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/reg/aquaenv/0.1.3:/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] 18f0a0278de3794444df6233ef370f6a872cc226af3bcb05eca96c12d7efd017
[INFO] running `"docker" "start" "-a" "18f0a0278de3794444df6233ef370f6a872cc226af3bcb05eca96c12d7efd017"`
[INFO] [stderr]    Compiling aquaenv v0.1.3 (/opt/crater/workdir)
[INFO] [stderr] warning: unused import: `ProjectDirs`
[INFO] [stderr]   --> src/main.rs:11:29
[INFO] [stderr]    |
[INFO] [stderr] 11 | use directories::{BaseDirs, ProjectDirs};
[INFO] [stderr]    |                             ^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_imports)] on by default
[INFO] [stderr] 
[INFO] [stderr] error[E0601]: `main` function not found in crate `aquaenv`
[INFO] [stderr]   |
[INFO] [stderr]   = note: consider adding a `main` function to `src/main.rs`
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to previous error
[INFO] [stderr] 
[INFO] [stderr] For more information about this error, try `rustc --explain E0601`.
[INFO] [stderr] error: Could not compile `aquaenv`.
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `"docker" "inspect" "18f0a0278de3794444df6233ef370f6a872cc226af3bcb05eca96c12d7efd017"`
[INFO] running `"docker" "rm" "-f" "18f0a0278de3794444df6233ef370f6a872cc226af3bcb05eca96c12d7efd017"`
[INFO] [stdout] 18f0a0278de3794444df6233ef370f6a872cc226af3bcb05eca96c12d7efd017