[INFO] updating cached repository https://github.com/nelsonatgithub/palindrome
[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] 093e4af2e6498e1f12f5be69bcb5c5571b7688cb
[INFO] testing nelsonatgithub/palindrome against beta-2020-06-03 for beta-1.45-1
[INFO] running `"git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fnelsonatgithub%2Fpalindrome" "/workspace/builds/worker-9/source"`
[INFO] [stderr] Cloning into '/workspace/builds/worker-9/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/nelsonatgithub/palindrome 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/nelsonatgithub/palindrome
[INFO] finished tweaking git repo https://github.com/nelsonatgithub/palindrome
[INFO] tweaked toml for git repo https://github.com/nelsonatgithub/palindrome written to /workspace/builds/worker-9/source/Cargo.toml
[INFO] crate git repo https://github.com/nelsonatgithub/palindrome 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-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/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] e861bc67b7e4ae1b3e579193e9cc639b88c2308dcb2717be1433354880d88655
[INFO] running `"docker" "start" "-a" "e861bc67b7e4ae1b3e579193e9cc639b88c2308dcb2717be1433354880d88655"`
[INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted
[INFO] [stderr]    Compiling PALIN v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] warning: associated function is never used: `is_palindrome`
[INFO] [stderr]   --> src/main.rs:58:8
[INFO] [stderr]    |
[INFO] [stderr] 58 |     fn is_palindrome(&mut self) -> bool {
[INFO] [stderr]    |        ^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: crate `PALIN` should have a snake case name
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(non_snake_case)]` on by default
[INFO] [stderr]   = help: convert the identifier to snake case: `palin`
[INFO] [stderr] 
[INFO] [stderr] warning: 2 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.12s
[INFO] running `"docker" "inspect" "e861bc67b7e4ae1b3e579193e9cc639b88c2308dcb2717be1433354880d88655"`
[INFO] running `"docker" "rm" "-f" "e861bc67b7e4ae1b3e579193e9cc639b88c2308dcb2717be1433354880d88655"`
[INFO] [stdout] e861bc67b7e4ae1b3e579193e9cc639b88c2308dcb2717be1433354880d88655
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/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] [stdout] 2e9e6545cdda558ea3a14d83ad9d55b123bdb57ecf84d68f92ec51152e54a2b1
[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" "2e9e6545cdda558ea3a14d83ad9d55b123bdb57ecf84d68f92ec51152e54a2b1"`
[INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted
[INFO] [stderr]    Compiling PALIN v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] warning: crate `PALIN` should have a snake case name
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(non_snake_case)]` on by default
[INFO] [stderr]   = help: convert the identifier to snake case: `palin`
[INFO] [stderr] 
[INFO] [stderr] warning: 1 warning emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 1.23s
[INFO] running `"docker" "inspect" "2e9e6545cdda558ea3a14d83ad9d55b123bdb57ecf84d68f92ec51152e54a2b1"`
[INFO] running `"docker" "rm" "-f" "2e9e6545cdda558ea3a14d83ad9d55b123bdb57ecf84d68f92ec51152e54a2b1"`
[INFO] [stdout] 2e9e6545cdda558ea3a14d83ad9d55b123bdb57ecf84d68f92ec51152e54a2b1
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/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] 3aff4338fc71970985cb1d60b1fb0f266f17da59282d77b25880970069b45542
[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" "3aff4338fc71970985cb1d60b1fb0f266f17da59282d77b25880970069b45542"`
[INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted
[INFO] [stderr] warning: crate `PALIN` should have a snake case name
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(non_snake_case)]` on by default
[INFO] [stderr]   = help: convert the identifier to snake case: `palin`
[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/PALIN-3f6bba9a2b7c7e1a
[INFO] [stdout] 
[INFO] [stdout] running 10 tests
[INFO] [stdout] test foo ... ok
[INFO] [stdout] test palindrome_break_index ... ok
[INFO] [stdout] test palindrome_digit ... ok
[INFO] [stdout] test palindrome_is_palindrome ... ok
[INFO] [stdout] test palindrome_mirror_after_3_digit ... ok
[INFO] [stdout] test palindrome_safe_index ... ok
[INFO] [stdout] test palindrome_mirror_after_2_digit ... ok
[INFO] [stdout] test palindrome_next ... ok
[INFO] [stdout] test palindrome_update_digit ... ok
[INFO] [stdout] test palindrome_length ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 10 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] running `"docker" "inspect" "3aff4338fc71970985cb1d60b1fb0f266f17da59282d77b25880970069b45542"`
[INFO] running `"docker" "rm" "-f" "3aff4338fc71970985cb1d60b1fb0f266f17da59282d77b25880970069b45542"`
[INFO] [stdout] 3aff4338fc71970985cb1d60b1fb0f266f17da59282d77b25880970069b45542