[INFO] updating cached repository https://github.com/rfaulhaber/kolakoski-counter
[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] ff0ae4792a2a31bdf4be02e596c5bcd4f28e917c
[INFO] testing rfaulhaber/kolakoski-counter against beta-2020-06-03 for beta-1.45-1
[INFO] running `"git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Frfaulhaber%2Fkolakoski-counter" "/workspace/builds/worker-12/source"`
[INFO] [stderr] Cloning into '/workspace/builds/worker-12/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/rfaulhaber/kolakoski-counter 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/rfaulhaber/kolakoski-counter
[INFO] finished tweaking git repo https://github.com/rfaulhaber/kolakoski-counter
[INFO] tweaked toml for git repo https://github.com/rfaulhaber/kolakoski-counter written to /workspace/builds/worker-12/source/Cargo.toml
[INFO] crate git repo https://github.com/rfaulhaber/kolakoski-counter 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-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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] d963145c509c37985322f385eb632d98a02f58f78a610310f8406d6b5fb7b78a
[INFO] running `"docker" "start" "-a" "d963145c509c37985322f385eb632d98a02f58f78a610310f8406d6b5fb7b78a"`
[INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted
[INFO] [stderr]    Compiling kol-counter v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] warning: field is never read: `prev_run`
[INFO] [stderr]  --> src/seq.rs:2:2
[INFO] [stderr]   |
[INFO] [stderr] 2 |     prev_run: Run,
[INFO] [stderr]   |     ^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `new`
[INFO] [stderr]  --> src/seq.rs:8:9
[INFO] [stderr]   |
[INFO] [stderr] 8 |     pub fn new() -> KolSeq {
[INFO] [stderr]   |            ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `first`
[INFO] [stderr]   --> src/seq.rs:28:5
[INFO] [stderr]    |
[INFO] [stderr] 28 |     fn first(&self) -> u8 {
[INFO] [stderr]    |        ^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: 3 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.60s
[INFO] running `"docker" "inspect" "d963145c509c37985322f385eb632d98a02f58f78a610310f8406d6b5fb7b78a"`
[INFO] running `"docker" "rm" "-f" "d963145c509c37985322f385eb632d98a02f58f78a610310f8406d6b5fb7b78a"`
[INFO] [stdout] d963145c509c37985322f385eb632d98a02f58f78a610310f8406d6b5fb7b78a
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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] bece3ba20b54f6f8186ccbcbaa8020b15fcbb2fd1ba525c70106aab24f90b7f9
[INFO] running `"docker" "start" "-a" "bece3ba20b54f6f8186ccbcbaa8020b15fcbb2fd1ba525c70106aab24f90b7f9"`
[INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted
[INFO] [stderr]    Compiling kol-counter v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] warning: field is never read: `prev_run`
[INFO] [stderr]  --> src/seq.rs:2:2
[INFO] [stderr]   |
[INFO] [stderr] 2 |     prev_run: Run,
[INFO] [stderr]   |     ^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `first`
[INFO] [stderr]   --> src/seq.rs:28:5
[INFO] [stderr]    |
[INFO] [stderr] 28 |     fn first(&self) -> u8 {
[INFO] [stderr]    |        ^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: 2 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.91s
[INFO] running `"docker" "inspect" "bece3ba20b54f6f8186ccbcbaa8020b15fcbb2fd1ba525c70106aab24f90b7f9"`
[INFO] running `"docker" "rm" "-f" "bece3ba20b54f6f8186ccbcbaa8020b15fcbb2fd1ba525c70106aab24f90b7f9"`
[INFO] [stdout] bece3ba20b54f6f8186ccbcbaa8020b15fcbb2fd1ba525c70106aab24f90b7f9
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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] [stdout] 5e5373b9262c757a11b426b562b6d4265be23e74c2b6844baecd5cf41a8637d2
[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" "5e5373b9262c757a11b426b562b6d4265be23e74c2b6844baecd5cf41a8637d2"`
[INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted
[INFO] [stderr] warning: field is never read: `prev_run`
[INFO] [stderr]  --> src/seq.rs:2:2
[INFO] [stderr]   |
[INFO] [stderr] 2 |     prev_run: Run,
[INFO] [stderr]   |     ^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `first`
[INFO] [stderr]   --> src/seq.rs:28:5
[INFO] [stderr]    |
[INFO] [stderr] 28 |     fn first(&self) -> u8 {
[INFO] [stderr]    |        ^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: 2 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.05s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/kol_counter-a06d560c9d49891d
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test seq::tests::kol_seq_generates_n_steps ... 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" "5e5373b9262c757a11b426b562b6d4265be23e74c2b6844baecd5cf41a8637d2"`
[INFO] running `"docker" "rm" "-f" "5e5373b9262c757a11b426b562b6d4265be23e74c2b6844baecd5cf41a8637d2"`
[INFO] [stdout] 5e5373b9262c757a11b426b562b6d4265be23e74c2b6844baecd5cf41a8637d2