[INFO] updating cached repository https://github.com/khanhtc1202/undefined-rust
[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] f32eab722599cd94d832f6a03d75f218efd34090
[INFO] testing khanhtc1202/undefined-rust against beta-2020-06-03 for beta-1.45-1
[INFO] running `"git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkhanhtc1202%2Fundefined-rust" "/workspace/builds/worker-0/source"`
[INFO] [stderr] Cloning into '/workspace/builds/worker-0/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/khanhtc1202/undefined-rust 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/khanhtc1202/undefined-rust
[INFO] finished tweaking git repo https://github.com/khanhtc1202/undefined-rust
[INFO] tweaked toml for git repo https://github.com/khanhtc1202/undefined-rust written to /workspace/builds/worker-0/source/Cargo.toml
[INFO] crate git repo https://github.com/khanhtc1202/undefined-rust 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-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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] 627f3171a3fab8bf7831616c92988a50d278b3b8625048fd3dcd8bfeadb8ae03
[INFO] running `"docker" "start" "-a" "627f3171a3fab8bf7831616c92988a50d278b3b8625048fd3dcd8bfeadb8ae03"`
[INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted
[INFO] [stderr]    Compiling sandbox v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] warning: unused doc comment
[INFO] [stderr]   --> src/mutexs.rs:14:9
[INFO] [stderr]    |
[INFO] [stderr] 14 | /         /// To access the data inside the mutex, we use the lock method to acquire the lock.
[INFO] [stderr] 15 | |         ///
[INFO] [stderr] 16 | |         /// The call to lock would fail if another thread holding the lock panicked. => need unwrap()
[INFO] [stderr] 17 | |         ///
[INFO] [stderr] ...  |
[INFO] [stderr] 21 | |         /// after this line, we going out of inner scope and ref `num` will be drop => return the lock to main thread
[INFO] [stderr] 22 | |         /// using inner scope, we don’t risk forgetting to release the lock and blocking the mutex from being used by other threads
[INFO] [stderr]    | |___________________________________________________________________________________________________________________________________^
[INFO] [stderr] 23 |           let mut num = m.lock().unwrap();
[INFO] [stderr]    |           -------------------------------- rustdoc does not generate documentation for statements
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_doc_comments)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: 1 warning emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.05s
[INFO] running `"docker" "inspect" "627f3171a3fab8bf7831616c92988a50d278b3b8625048fd3dcd8bfeadb8ae03"`
[INFO] running `"docker" "rm" "-f" "627f3171a3fab8bf7831616c92988a50d278b3b8625048fd3dcd8bfeadb8ae03"`
[INFO] [stdout] 627f3171a3fab8bf7831616c92988a50d278b3b8625048fd3dcd8bfeadb8ae03
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] a23890d3e726aed7c797765679f7fdf54534eaa9cdeb129717827527d64a7093
[INFO] running `"docker" "start" "-a" "a23890d3e726aed7c797765679f7fdf54534eaa9cdeb129717827527d64a7093"`
[INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted
[INFO] [stderr]    Compiling sandbox v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] warning: unused doc comment
[INFO] [stderr]   --> src/mutexs.rs:14:9
[INFO] [stderr]    |
[INFO] [stderr] 14 | /         /// To access the data inside the mutex, we use the lock method to acquire the lock.
[INFO] [stderr] 15 | |         ///
[INFO] [stderr] 16 | |         /// The call to lock would fail if another thread holding the lock panicked. => need unwrap()
[INFO] [stderr] 17 | |         ///
[INFO] [stderr] ...  |
[INFO] [stderr] 21 | |         /// after this line, we going out of inner scope and ref `num` will be drop => return the lock to main thread
[INFO] [stderr] 22 | |         /// using inner scope, we don’t risk forgetting to release the lock and blocking the mutex from being used by other threads
[INFO] [stderr]    | |___________________________________________________________________________________________________________________________________^
[INFO] [stderr] 23 |           let mut num = m.lock().unwrap();
[INFO] [stderr]    |           -------------------------------- rustdoc does not generate documentation for statements
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_doc_comments)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: 1 warning emitted
[INFO] [stderr] 
[INFO] [stderr] warning: unused doc comment
[INFO] [stderr]   --> src/mutexs.rs:14:9
[INFO] [stderr]    |
[INFO] [stderr] 14 | /         /// To access the data inside the mutex, we use the lock method to acquire the lock.
[INFO] [stderr] 15 | |         ///
[INFO] [stderr] 16 | |         /// The call to lock would fail if another thread holding the lock panicked. => need unwrap()
[INFO] [stderr] 17 | |         ///
[INFO] [stderr] ...  |
[INFO] [stderr] 21 | |         /// after this line, we going out of inner scope and ref `num` will be drop => return the lock to main thread
[INFO] [stderr] 22 | |         /// using inner scope, we don’t risk forgetting to release the lock and blocking the mutex from being used by other threads
[INFO] [stderr]    | |___________________________________________________________________________________________________________________________________^
[INFO] [stderr] 23 |           let mut num = m.lock().unwrap();
[INFO] [stderr]    |           -------------------------------- rustdoc does not generate documentation for statements
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_doc_comments)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: 1 warning emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.88s
[INFO] running `"docker" "inspect" "a23890d3e726aed7c797765679f7fdf54534eaa9cdeb129717827527d64a7093"`
[INFO] running `"docker" "rm" "-f" "a23890d3e726aed7c797765679f7fdf54534eaa9cdeb129717827527d64a7093"`
[INFO] [stdout] a23890d3e726aed7c797765679f7fdf54534eaa9cdeb129717827527d64a7093
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 205ddefec0fa8524487bc5151669d92b4a22ff1264d17b5c35023e9a2fc9b389
[INFO] running `"docker" "start" "-a" "205ddefec0fa8524487bc5151669d92b4a22ff1264d17b5c35023e9a2fc9b389"`
[INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted
[INFO] [stderr] warning: unused doc comment
[INFO] [stderr]   --> src/mutexs.rs:14:9
[INFO] [stderr]    |
[INFO] [stderr] 14 | /         /// To access the data inside the mutex, we use the lock method to acquire the lock.
[INFO] [stderr] 15 | |         ///
[INFO] [stderr] 16 | |         /// The call to lock would fail if another thread holding the lock panicked. => need unwrap()
[INFO] [stderr] 17 | |         ///
[INFO] [stderr] ...  |
[INFO] [stderr] 21 | |         /// after this line, we going out of inner scope and ref `num` will be drop => return the lock to main thread
[INFO] [stderr] 22 | |         /// using inner scope, we don’t risk forgetting to release the lock and blocking the mutex from being used by other threads
[INFO] [stderr]    | |___________________________________________________________________________________________________________________________________^
[INFO] [stderr] 23 |           let mut num = m.lock().unwrap();
[INFO] [stderr]    |           -------------------------------- rustdoc does not generate documentation for statements
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_doc_comments)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: 1 warning emitted
[INFO] [stderr] 
[INFO] [stderr] warning: unused doc comment
[INFO] [stderr]   --> src/mutexs.rs:14:9
[INFO] [stderr]    |
[INFO] [stderr] 14 | /         /// To access the data inside the mutex, we use the lock method to acquire the lock.
[INFO] [stderr] 15 | |         ///
[INFO] [stderr] 16 | |         /// The call to lock would fail if another thread holding the lock panicked. => need unwrap()
[INFO] [stderr] 17 | |         ///
[INFO] [stderr] ...  |
[INFO] [stderr] 21 | |         /// after this line, we going out of inner scope and ref `num` will be drop => return the lock to main thread
[INFO] [stderr] 22 | |         /// using inner scope, we don’t risk forgetting to release the lock and blocking the mutex from being used by other threads
[INFO] [stderr]    | |___________________________________________________________________________________________________________________________________^
[INFO] [stderr] 23 |           let mut num = m.lock().unwrap();
[INFO] [stderr]    |           -------------------------------- rustdoc does not generate documentation for statements
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_doc_comments)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: 1 warning emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.03s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/sandbox-9df488a5c82b2f72
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/tests-359d425943d5a454
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test tests::greater_than_100 ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] running `"docker" "inspect" "205ddefec0fa8524487bc5151669d92b4a22ff1264d17b5c35023e9a2fc9b389"`
[INFO] running `"docker" "rm" "-f" "205ddefec0fa8524487bc5151669d92b4a22ff1264d17b5c35023e9a2fc9b389"`
[INFO] [stdout] 205ddefec0fa8524487bc5151669d92b4a22ff1264d17b5c35023e9a2fc9b389