[INFO] cloning repository https://github.com/puma3/distributed_recommender
[INFO] running `"git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/puma3/distributed_recommender" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fpuma3%2Fdistributed_recommender"`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fpuma3%2Fdistributed_recommender'...
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] be19d7076799e93846adcd6256be68413fc7e165
[INFO] testing puma3/distributed_recommender against 1.44.0 for beta-1.45-1
[INFO] running `"git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fpuma3%2Fdistributed_recommender" "/workspace/builds/worker-5/source"`
[INFO] [stderr] Cloning into '/workspace/builds/worker-5/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/puma3/distributed_recommender on toolchain 1.44.0
[INFO] running `"/workspace/cargo-home/bin/cargo" "+1.44.0" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking git repo https://github.com/puma3/distributed_recommender
[INFO] removed path dependency database from git repo https://github.com/puma3/distributed_recommender
[INFO] removed path dependency distance from git repo https://github.com/puma3/distributed_recommender
[INFO] finished tweaking git repo https://github.com/puma3/distributed_recommender
[INFO] tweaked toml for git repo https://github.com/puma3/distributed_recommender written to /workspace/builds/worker-5/source/Cargo.toml
[INFO] crate git repo https://github.com/puma3/distributed_recommender already has a lockfile, it will not be regenerated
[INFO] running `"/workspace/cargo-home/bin/cargo" "+1.44.0" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr] warning: dependency (database) specified without providing a local path, Git repository, or version to use. This will be considered an error in future versions
[INFO] [stderr] warning: dependency (distance) specified without providing a local path, Git repository, or version to use. This will be considered an error in future versions
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr] error: the lock file /workspace/builds/worker-5/source/Cargo.lock needs to be updated but --locked was passed to prevent this
[INFO] [stderr] If you want to try to generate the lock file without accessing the network, use the --offline flag.
[INFO] the lockfile is outdated, regenerating it
[INFO] running `"/workspace/cargo-home/bin/cargo" "+1.44.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/workspace/cargo-home/bin/cargo" "+1.44.0" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr] warning: dependency (database) specified without providing a local path, Git repository, or version to use. This will be considered an error in future versions
[INFO] [stderr] warning: dependency (distance) specified without providing a local path, Git repository, or version to use. This will be considered an error in future versions
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded timely_logging v0.11.1
[INFO] [stderr]   Downloaded timely v0.11.1
[INFO] [stderr]   Downloaded database v0.5.0
[INFO] [stderr]   Downloaded timely_communication v0.11.1
[INFO] [stderr]   Downloaded timely_bytes v0.11.0
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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" "+1.44.0" "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] 2f622066e4cfe5c4eb23296a9b74705981f3193194d7afae3c2ed881b5b235c6
[INFO] running `"docker" "start" "-a" "2f622066e4cfe5c4eb23296a9b74705981f3193194d7afae3c2ed881b5b235c6"`
[INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted
[INFO] [stderr] warning: dependency (database) specified without providing a local path, Git repository, or version to use. This will be considered an error in future versions
[INFO] [stderr] warning: dependency (distance) specified without providing a local path, Git repository, or version to use. This will be considered an error in future versions
[INFO] [stderr]    Compiling proc-macro2 v1.0.18
[INFO] [stderr]    Compiling syn v1.0.30
[INFO] [stderr]    Compiling timely_bytes v0.11.0
[INFO] [stderr]    Compiling timely_logging v0.11.1
[INFO] [stderr]    Compiling abomonation v0.7.3
[INFO] [stderr]    Compiling distance v0.4.0
[INFO] [stderr]    Compiling database v0.5.0
[INFO] [stderr]    Compiling getopts v0.2.21
[INFO] [stderr]    Compiling quote v1.0.6
[INFO] [stderr]    Compiling synstructure v0.12.3
[INFO] [stderr]    Compiling serde_derive v1.0.111
[INFO] [stderr]    Compiling abomonation_derive v0.5.0
[INFO] [stderr]    Compiling timely_communication v0.11.1
[INFO] [stderr]    Compiling timely v0.11.1
[INFO] [stderr]    Compiling distributed_recommender v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] error[E0432]: unresolved import `timely::dataflow::channels::message`
[INFO] [stderr]   --> src/main.rs:14:33
[INFO] [stderr]    |
[INFO] [stderr] 14 | use timely::dataflow::channels::message::Content;
[INFO] [stderr]    |                                 ^^^^^^^ could not find `message` in `channels`
[INFO] [stderr] 
[INFO] [stderr] error[E0433]: failed to resolve: use of undeclared type or module `Database`
[INFO] [stderr]   --> src/main.rs:39:18
[INFO] [stderr]    |
[INFO] [stderr] 39 |         let db = Database::from_file(path);
[INFO] [stderr]    |                  ^^^^^^^^ use of undeclared type or module `Database`
[INFO] [stderr] 
[INFO] [stderr] error[E0425]: cannot find value `pearson_coef` in crate `distance`
[INFO] [stderr]   --> src/main.rs:71:114
[INFO] [stderr]    |
[INFO] [stderr] 71 | ...                   distance::pearson_coef)));
[INFO] [stderr]    |                                 ^^^^^^^^^^^^ not found in `distance`
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `database::*`
[INFO] [stderr]  --> src/main.rs:5:5
[INFO] [stderr]   |
[INFO] [stderr] 5 | use database::*;
[INFO] [stderr]   |     ^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] error[E0593]: closure is expected to take 2 arguments, but it takes 1 argument
[INFO] [stderr]   --> src/main.rs:58:19
[INFO] [stderr]    |
[INFO] [stderr] 58 |                  .unary(Pipeline, "user-user_distances", |capability|
[INFO] [stderr]    |                   ^^^^^                                  ------------ takes 1 argument
[INFO] [stderr]    |                   |
[INFO] [stderr]    |                   expected closure that takes 2 arguments
[INFO] [stderr] 
[INFO] [stderr] error[E0599]: no method named `distance_between_users` found for struct `std::sync::MutexGuard<'_, _>` in the current scope
[INFO] [stderr]   --> src/main.rs:69:82
[INFO] [stderr]    |
[INFO] [stderr] 69 | ...                   session.give((*id_2, db1.lock().unwrap().distance_between_users(id...
[INFO] [stderr]    |                                                                ^^^^^^^^^^^^^^^^^^^^^^ method not found in `std::sync::MutexGuard<'_, _>`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `db1.lock().unwrap()` is a function, perhaps you wish to call it
[INFO] [stderr] 
[INFO] [stderr] error[E0593]: closure is expected to take 2 arguments, but it takes 1 argument
[INFO] [stderr]   --> src/main.rs:78:19
[INFO] [stderr]    |
[INFO] [stderr] 78 |                  .unary(Pipeline, "user-based_recommend", |capability|
[INFO] [stderr]    |                   ^^^^^                                   ------------ takes 1 argument
[INFO] [stderr]    |                   |
[INFO] [stderr]    |                   expected closure that takes 2 arguments
[INFO] [stderr] 
[INFO] [stderr] error[E0599]: no method named `user_based_recommendation` found for struct `std::sync::MutexGuard<'_, _>` in the current scope
[INFO] [stderr]   --> src/main.rs:84:62
[INFO] [stderr]    |
[INFO] [stderr] 84 | ...                   session.give(db2.lock().unwrap().user_based_recommendation(dist_vec));
[INFO] [stderr]    |                                                        ^^^^^^^^^^^^^^^^^^^^^^^^^ method not found in `std::sync::MutexGuard<'_, _>`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `db2.lock().unwrap()` is a function, perhaps you wish to call it
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to 7 previous errors; 1 warning emitted
[INFO] [stderr] 
[INFO] [stderr] Some errors have detailed explanations: E0425, E0432, E0433, E0593, E0599.
[INFO] [stderr] For more information about an error, try `rustc --explain E0425`.
[INFO] [stderr] error: could not compile `distributed_recommender`.
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `"docker" "inspect" "2f622066e4cfe5c4eb23296a9b74705981f3193194d7afae3c2ed881b5b235c6"`
[INFO] running `"docker" "rm" "-f" "2f622066e4cfe5c4eb23296a9b74705981f3193194d7afae3c2ed881b5b235c6"`
[INFO] [stdout] 2f622066e4cfe5c4eb23296a9b74705981f3193194d7afae3c2ed881b5b235c6