[INFO] crate ksway 0.1.0 is already in cache
[INFO] checking ksway-0.1.0 against beta-2019-10-27 for pr-65897
[INFO] extracting crate ksway 0.1.0 into /workspace/builds/worker-6/source
[INFO] validating manifest of crates.io crate ksway 0.1.0 on toolchain beta-2019-10-27
[INFO] running `"/workspace/cargo-home/bin/cargo" "+beta-2019-10-27" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking crates.io crate ksway 0.1.0
[INFO] removed 1 missing examples
[INFO] finished tweaking crates.io crate ksway 0.1.0
[INFO] tweaked toml for crates.io crate ksway 0.1.0 written to /workspace/builds/worker-6/source/Cargo.toml
[INFO] running `"/workspace/cargo-home/bin/cargo" "+beta-2019-10-27" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/workspace/cargo-home/bin/cargo" "+beta-2019-10-27" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "MAP_USER_ID=0" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=allow" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2019-10-27" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 5fa7df2229694fc8189bed28d9f50140f3f3e9b2055f6d1a0ea9c81fe35ab8c4
[INFO] running `"docker" "start" "-a" "5fa7df2229694fc8189bed28d9f50140f3f3e9b2055f6d1a0ea9c81fe35ab8c4"`
[INFO] [stderr]     Checking globset v0.4.4
[INFO] [stderr]    Compiling num-derive v0.2.5
[INFO] [stderr]     Checking redis v0.10.0
[INFO] [stderr]     Checking ignore v0.4.10
[INFO] [stderr]     Checking globwalk v0.7.1
[INFO] [stderr]     Checking ksway v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] error[E0601]: `main` function not found in crate `utils`
[INFO] [stderr]   --> examples/utils.rs:1:1
[INFO] [stderr]    |
[INFO] [stderr] 1  | / use json::JsonValue;
[INFO] [stderr] 2  | |
[INFO] [stderr] 3  | | pub fn preorder<T, F: FnMut(&JsonValue) -> Option<T>>(
[INFO] [stderr] 4  | |     value: &JsonValue,
[INFO] [stderr] ...  |
[INFO] [stderr] 42 | |     target
[INFO] [stderr] 43 | | }
[INFO] [stderr]    | |_^ consider adding a `main` function to `examples/utils.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 `ksway`.
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: build failed
[INFO] running `"docker" "inspect" "5fa7df2229694fc8189bed28d9f50140f3f3e9b2055f6d1a0ea9c81fe35ab8c4"`
[INFO] running `"docker" "rm" "-f" "5fa7df2229694fc8189bed28d9f50140f3f3e9b2055f6d1a0ea9c81fe35ab8c4"`
[INFO] [stdout] 5fa7df2229694fc8189bed28d9f50140f3f3e9b2055f6d1a0ea9c81fe35ab8c4