[INFO] crate cmb 0.0.2 is already in cache
[INFO] testing cmb-0.0.2 against beta-2020-06-03 for beta-1.45-1
[INFO] extracting crate cmb 0.0.2 into /workspace/builds/worker-7/source
[INFO] validating manifest of crates.io crate cmb 0.0.2 on toolchain beta-2020-06-03
[INFO] running `"/workspace/cargo-home/bin/cargo" "+beta-2020-06-03" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking crates.io crate cmb 0.0.2
[INFO] finished tweaking crates.io crate cmb 0.0.2
[INFO] tweaked toml for crates.io crate cmb 0.0.2 written to /workspace/builds/worker-7/source/Cargo.toml
[INFO] crate crates.io crate cmb 0.0.2 already has a lockfile, it will not be regenerated
[INFO] running `"/workspace/cargo-home/bin/cargo" "+beta-2020-06-03" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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=warn" "-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-2020-06-03" "build" "--frozen"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] b580fd2a049ca74455444224998a2c9aa6955afdecad6314df365aa9da81f95d
[INFO] running `"docker" "start" "-a" "b580fd2a049ca74455444224998a2c9aa6955afdecad6314df365aa9da81f95d"`
[INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted
[INFO] [stderr]    Compiling cmb v0.0.2 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.12s
[INFO] running `"docker" "inspect" "b580fd2a049ca74455444224998a2c9aa6955afdecad6314df365aa9da81f95d"`
[INFO] running `"docker" "rm" "-f" "b580fd2a049ca74455444224998a2c9aa6955afdecad6314df365aa9da81f95d"`
[INFO] [stdout] b580fd2a049ca74455444224998a2c9aa6955afdecad6314df365aa9da81f95d
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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=warn" "-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-2020-06-03" "test" "--frozen" "--no-run"`
[INFO] [stdout] 074ef2a8417a6645b73ae2bbba8648ac298f76596be8a1dd703e4a2cbf7327ec
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `"docker" "start" "-a" "074ef2a8417a6645b73ae2bbba8648ac298f76596be8a1dd703e4a2cbf7327ec"`
[INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted
[INFO] [stderr]    Compiling cmb v0.0.2 (/opt/rustwide/workdir)
[INFO] [stderr] error[E0601]: `main` function not found in crate `app`
[INFO] [stderr]   |
[INFO] [stderr]   = note: consider adding a `main` function to `examples/app.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 `cmb`.
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: build failed
[INFO] running `"docker" "inspect" "074ef2a8417a6645b73ae2bbba8648ac298f76596be8a1dd703e4a2cbf7327ec"`
[INFO] running `"docker" "rm" "-f" "074ef2a8417a6645b73ae2bbba8648ac298f76596be8a1dd703e4a2cbf7327ec"`
[INFO] [stdout] 074ef2a8417a6645b73ae2bbba8648ac298f76596be8a1dd703e4a2cbf7327ec