[INFO] cloning repository https://github.com/mwttg/rust-99-problems
[INFO] running `"git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/mwttg/rust-99-problems" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmwttg%2Frust-99-problems"`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmwttg%2Frust-99-problems'...
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 3b72ee8ac58d67f537732428ece0e1877ec0d573
[INFO] testing mwttg/rust-99-problems against beta-2020-06-03 for beta-1.45-1
[INFO] running `"git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmwttg%2Frust-99-problems" "/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/mwttg/rust-99-problems 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/mwttg/rust-99-problems
[INFO] finished tweaking git repo https://github.com/mwttg/rust-99-problems
[INFO] tweaked toml for git repo https://github.com/mwttg/rust-99-problems written to /workspace/builds/worker-5/source/Cargo.toml
[INFO] crate git repo https://github.com/mwttg/rust-99-problems 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-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" "+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] 9e17af74dd5d4b0d7525005db58b17a9fe9e486a33470c6cbd43bdcfbc1da0a2
[INFO] running `"docker" "start" "-a" "9e17af74dd5d4b0d7525005db58b17a9fe9e486a33470c6cbd43bdcfbc1da0a2"`
[INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted
[INFO] [stderr]    Compiling rust-99-problems v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.94s
[INFO] running `"docker" "inspect" "9e17af74dd5d4b0d7525005db58b17a9fe9e486a33470c6cbd43bdcfbc1da0a2"`
[INFO] running `"docker" "rm" "-f" "9e17af74dd5d4b0d7525005db58b17a9fe9e486a33470c6cbd43bdcfbc1da0a2"`
[INFO] [stdout] 9e17af74dd5d4b0d7525005db58b17a9fe9e486a33470c6cbd43bdcfbc1da0a2
[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" "+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] 0dab4aba973b52da7c2b68fe4e55b4ed898d0017da6d83622815b0e74759026c
[INFO] running `"docker" "start" "-a" "0dab4aba973b52da7c2b68fe4e55b4ed898d0017da6d83622815b0e74759026c"`
[INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted
[INFO] [stderr]    Compiling rust-99-problems v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] warning: function is never used: `length_recursive_empty_input`
[INFO] [stderr]   --> src/p04/mod.rs:52:8
[INFO] [stderr]    |
[INFO] [stderr] 52 |     fn length_recursive_empty_input() {
[INFO] [stderr]    |        ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: 1 warning emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 1.16s
[INFO] running `"docker" "inspect" "0dab4aba973b52da7c2b68fe4e55b4ed898d0017da6d83622815b0e74759026c"`
[INFO] running `"docker" "rm" "-f" "0dab4aba973b52da7c2b68fe4e55b4ed898d0017da6d83622815b0e74759026c"`
[INFO] [stdout] 0dab4aba973b52da7c2b68fe4e55b4ed898d0017da6d83622815b0e74759026c
[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" "+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] 18d8d349402e3d97b39971de1105f2364e7504ab256b7e466cb31af08a04e9f1
[INFO] running `"docker" "start" "-a" "18d8d349402e3d97b39971de1105f2364e7504ab256b7e466cb31af08a04e9f1"`
[INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted
[INFO] [stderr] warning: function is never used: `length_recursive_empty_input`
[INFO] [stderr]   --> src/p04/mod.rs:52:8
[INFO] [stderr]    |
[INFO] [stderr] 52 |     fn length_recursive_empty_input() {
[INFO] [stderr]    |        ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` 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/rust_99_problems-9d48bdd04b43e87f
[INFO] [stdout] 
[INFO] [stdout] running 20 tests
[INFO] [stdout] test p01::tests::find_last_recursive_empty_input ... ok
[INFO] [stdout] test p01::tests::find_last_recursive_input_of_size_one ... ok
[INFO] [stdout] test p01::tests::test_find_last_functional_empty_input ... ok
[INFO] [stdout] test p02::tests::penultimate_valid_input_int ... ok
[INFO] [stdout] test p02::tests::penultimate_valid_input_of_size_one ... ok
[INFO] [stdout] test p02::tests::penultimate_valid_input_string ... ok
[INFO] [stdout] test p03::tests::nth_empty_vec ... ok
[INFO] [stdout] test p03::tests::nth_recursive_empty_vec ... ok
[INFO] [stdout] test p03::tests::nth_recursive_valid_input ... ok
[INFO] [stdout] test p03::tests::nth_valid_input ... ok
[INFO] [stdout] test p04::tests::length_empty_input ... ok
[INFO] [stdout] test p04::tests::length_recursive_valid_input ... ok
[INFO] [stdout] test p04::tests::length_valid_input ... ok
[INFO] [stdout] test p05::tests::reverse_recursive_valid_input ... ok
[INFO] [stdout] test p05::tests::reverse_recursive_with_empty_input ... ok
[INFO] [stdout] test p05::tests::reverse_valid_vec ... ok
[INFO] [stdout] test p05::tests::reverse_with_empty_input ... ok
[INFO] [stdout] test p01::tests::find_last_recursive_valid_input ... ok
[INFO] [stdout] test p02::tests::penultimate_valid_empty_input ... ok
[INFO] [stdout] test p01::tests::test_find_last_functional_valid_input ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 20 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] running `"docker" "inspect" "18d8d349402e3d97b39971de1105f2364e7504ab256b7e466cb31af08a04e9f1"`
[INFO] running `"docker" "rm" "-f" "18d8d349402e3d97b39971de1105f2364e7504ab256b7e466cb31af08a04e9f1"`
[INFO] [stdout] 18d8d349402e3d97b39971de1105f2364e7504ab256b7e466cb31af08a04e9f1