[INFO] updating cached repository https://github.com/kuanxiang/coding-dojo-rust-001
[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] a8ac14bd0b5ff8c8391e57d00572ac2c7f4f9afd
[INFO] testing kuanxiang/coding-dojo-rust-001 against beta-2020-06-03 for beta-1.45-1
[INFO] running `"git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkuanxiang%2Fcoding-dojo-rust-001" "/workspace/builds/worker-7/source"`
[INFO] [stderr] Cloning into '/workspace/builds/worker-7/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/kuanxiang/coding-dojo-rust-001 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/kuanxiang/coding-dojo-rust-001
[INFO] finished tweaking git repo https://github.com/kuanxiang/coding-dojo-rust-001
[INFO] tweaked toml for git repo https://github.com/kuanxiang/coding-dojo-rust-001 written to /workspace/builds/worker-7/source/Cargo.toml
[INFO] crate git repo https://github.com/kuanxiang/coding-dojo-rust-001 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] 82e160bb6c8ac2a6e5b145117a634d7da8c5fcf867e03c12838716e691f3286b
[INFO] running `"docker" "start" "-a" "82e160bb6c8ac2a6e5b145117a634d7da8c5fcf867e03c12838716e691f3286b"`
[INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted
[INFO] [stderr]    Compiling coding-dojo-rust-001 v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] warning: associated function is never used: `add`
[INFO] [stderr]  --> src/main.rs:8:8
[INFO] [stderr]   |
[INFO] [stderr] 8 |     fn add(a: i64, b: i64) -> i64 {
[INFO] [stderr]   |        ^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `sub`
[INFO] [stderr]   --> src/main.rs:12:8
[INFO] [stderr]    |
[INFO] [stderr] 12 |     fn sub(a: i64, b: i64) -> i64 {
[INFO] [stderr]    |        ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `mul`
[INFO] [stderr]   --> src/main.rs:16:8
[INFO] [stderr]    |
[INFO] [stderr] 16 |     fn mul(a: i64, b: i64) -> i64 {
[INFO] [stderr]    |        ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: 3 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.40s
[INFO] running `"docker" "inspect" "82e160bb6c8ac2a6e5b145117a634d7da8c5fcf867e03c12838716e691f3286b"`
[INFO] running `"docker" "rm" "-f" "82e160bb6c8ac2a6e5b145117a634d7da8c5fcf867e03c12838716e691f3286b"`
[INFO] [stdout] 82e160bb6c8ac2a6e5b145117a634d7da8c5fcf867e03c12838716e691f3286b
[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] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] c3a0d490e454d24628e2a6342df8099a9abba25c6a122dbeb9bcd061b9a35d6b
[INFO] running `"docker" "start" "-a" "c3a0d490e454d24628e2a6342df8099a9abba25c6a122dbeb9bcd061b9a35d6b"`
[INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted
[INFO] [stderr]    Compiling coding-dojo-rust-001 v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.69s
[INFO] running `"docker" "inspect" "c3a0d490e454d24628e2a6342df8099a9abba25c6a122dbeb9bcd061b9a35d6b"`
[INFO] running `"docker" "rm" "-f" "c3a0d490e454d24628e2a6342df8099a9abba25c6a122dbeb9bcd061b9a35d6b"`
[INFO] [stdout] c3a0d490e454d24628e2a6342df8099a9abba25c6a122dbeb9bcd061b9a35d6b
[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"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] b61f8ea68acc7369632caf5077459dbc4342f0e50e5b81bf7ecfa8e1c80bcccf
[INFO] running `"docker" "start" "-a" "b61f8ea68acc7369632caf5077459dbc4342f0e50e5b81bf7ecfa8e1c80bcccf"`
[INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/coding_dojo_rust_001-5cc493dc26fe4d07
[INFO] [stdout] 
[INFO] [stdout] running 3 tests
[INFO] [stdout] test test_add ... ok
[INFO] [stdout] test test_mul ... ok
[INFO] [stdout] test test_sub ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 3 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] running `"docker" "inspect" "b61f8ea68acc7369632caf5077459dbc4342f0e50e5b81bf7ecfa8e1c80bcccf"`
[INFO] running `"docker" "rm" "-f" "b61f8ea68acc7369632caf5077459dbc4342f0e50e5b81bf7ecfa8e1c80bcccf"`
[INFO] [stdout] b61f8ea68acc7369632caf5077459dbc4342f0e50e5b81bf7ecfa8e1c80bcccf