[INFO] updating cached repository https://github.com/Pungyeon/rust-sample-app
[INFO] running `"git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "-c" "remote.origin.fetch=refs/heads/*:refs/heads/*" "fetch" "origin" "--force" "--prune"`
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] d42914c3daed5c499d6347c42d7f79554cd2e101
[INFO] testing Pungyeon/rust-sample-app against beta-2020-06-03 for beta-1.45-1
[INFO] running `"git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FPungyeon%2Frust-sample-app" "/workspace/builds/worker-1/source"`
[INFO] [stderr] Cloning into '/workspace/builds/worker-1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/Pungyeon/rust-sample-app 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 git repo https://github.com/Pungyeon/rust-sample-app
[INFO] finished tweaking git repo https://github.com/Pungyeon/rust-sample-app
[INFO] tweaked toml for git repo https://github.com/Pungyeon/rust-sample-app written to /workspace/builds/worker-1/source/Cargo.toml
[INFO] crate git repo https://github.com/Pungyeon/rust-sample-app 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-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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] [stdout] 4b6e03ba0e1f1fc7c9865444cdcc6bdc7a3e931fc1a1954a6447084ca4d8e533
[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" "4b6e03ba0e1f1fc7c9865444cdcc6bdc7a3e931fc1a1954a6447084ca4d8e533"`
[INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted
[INFO] [stderr]    Compiling rust_test v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] error[E0583]: file not found for module `lib`
[INFO] [stderr]  --> src/bin/main.rs:1:1
[INFO] [stderr]   |
[INFO] [stderr] 1 | mod lib;
[INFO] [stderr]   | ^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = help: to create the module `lib`, create file "src/bin/lib.rs"
[INFO] [stderr] 
[INFO] [stderr] error[E0433]: failed to resolve: use of undeclared type or module `ThreadPool`
[INFO] [stderr]   --> src/bin/main.rs:13:13
[INFO] [stderr]    |
[INFO] [stderr] 13 |     let pool = ThreadPool::new(4);
[INFO] [stderr]    |                ^^^^^^^^^^ use of undeclared type or module `ThreadPool`
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to 2 previous errors
[INFO] [stderr] 
[INFO] [stderr] Some errors have detailed explanations: E0433, E0583.
[INFO] [stderr] For more information about an error, try `rustc --explain E0433`.
[INFO] [stderr] error: could not compile `rust_test`.
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `"docker" "inspect" "4b6e03ba0e1f1fc7c9865444cdcc6bdc7a3e931fc1a1954a6447084ca4d8e533"`
[INFO] running `"docker" "rm" "-f" "4b6e03ba0e1f1fc7c9865444cdcc6bdc7a3e931fc1a1954a6447084ca4d8e533"`
[INFO] [stdout] 4b6e03ba0e1f1fc7c9865444cdcc6bdc7a3e931fc1a1954a6447084ca4d8e533