[INFO] cloning repository https://github.com/nelsonatgithub/palindrome
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/nelsonatgithub/palindrome" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fnelsonatgithub%2Fpalindrome", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fnelsonatgithub%2Fpalindrome'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 093e4af2e6498e1f12f5be69bcb5c5571b7688cb
[INFO] testing nelsonatgithub/palindrome against 1.90.0 for beta-1.91-3
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fnelsonatgithub%2Fpalindrome" "/workspace/builds/worker-6-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-6-tc1/source'...
[INFO] [stderr] done.
[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-6-tc1/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/nelsonatgithub/palindrome on toolchain 1.90.0
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.90.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/nelsonatgithub/palindrome already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.90.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/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" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+1.90.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] ffecf8c62eb065d240008270575b3fc78336e0fdcdf9a9030c6992bdcde824d9
[INFO] running `Command { std: "docker" "start" "-a" "ffecf8c62eb065d240008270575b3fc78336e0fdcdf9a9030c6992bdcde824d9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "ffecf8c62eb065d240008270575b3fc78336e0fdcdf9a9030c6992bdcde824d9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ffecf8c62eb065d240008270575b3fc78336e0fdcdf9a9030c6992bdcde824d9", kill_on_drop: false }`
[INFO] [stdout] ffecf8c62eb065d240008270575b3fc78336e0fdcdf9a9030c6992bdcde824d9
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/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" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+1.90.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 518228233aaf4b7295a97c485725b29ba4e9112cae65ea2bb6b182c4558b11ac
[INFO] running `Command { std: "docker" "start" "-a" "518228233aaf4b7295a97c485725b29ba4e9112cae65ea2bb6b182c4558b11ac", kill_on_drop: false }`
[INFO] [stderr]    Compiling PALIN v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: method `is_palindrome` is never used
[INFO] [stdout]   --> src/main.rs:58:8
[INFO] [stdout]    |
[INFO] [stdout]  7 | impl LargeNumber {
[INFO] [stdout]    | ---------------- method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 58 |     fn is_palindrome(&mut self) -> bool {
[INFO] [stdout]    |        ^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.61s
[INFO] running `Command { std: "docker" "inspect" "518228233aaf4b7295a97c485725b29ba4e9112cae65ea2bb6b182c4558b11ac", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "518228233aaf4b7295a97c485725b29ba4e9112cae65ea2bb6b182c4558b11ac", kill_on_drop: false }`
[INFO] [stdout] 518228233aaf4b7295a97c485725b29ba4e9112cae65ea2bb6b182c4558b11ac
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/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" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+1.90.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 0383be01ae1b6a7fe6229e6d0c3575e833fe001e60738916a6d113af76df4388
[INFO] running `Command { std: "docker" "start" "-a" "0383be01ae1b6a7fe6229e6d0c3575e833fe001e60738916a6d113af76df4388", kill_on_drop: false }`
[INFO] [stderr]    Compiling PALIN v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.41s
[INFO] running `Command { std: "docker" "inspect" "0383be01ae1b6a7fe6229e6d0c3575e833fe001e60738916a6d113af76df4388", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0383be01ae1b6a7fe6229e6d0c3575e833fe001e60738916a6d113af76df4388", kill_on_drop: false }`
[INFO] [stdout] 0383be01ae1b6a7fe6229e6d0c3575e833fe001e60738916a6d113af76df4388
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/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" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+1.90.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] a9f6fc90086e250e419814ed4ab4c212830e1978002ded3273f2e20ea18f53c8
[INFO] running `Command { std: "docker" "start" "-a" "a9f6fc90086e250e419814ed4ab4c212830e1978002ded3273f2e20ea18f53c8", kill_on_drop: false }`
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stderr]      Running unittests src/main.rs (/opt/rustwide/target/debug/deps/PALIN-5dde12274c7f6761)
[INFO] [stdout] 
[INFO] [stdout] running 10 tests
[INFO] [stdout] test foo ... ok
[INFO] [stdout] test palindrome_digit ... ok
[INFO] [stdout] test palindrome_is_palindrome ... ok
[INFO] [stdout] test palindrome_mirror_after_2_digit ... ok
[INFO] [stdout] test palindrome_break_index ... ok
[INFO] [stdout] test palindrome_mirror_after_3_digit ... ok
[INFO] [stdout] test palindrome_update_digit ... ok
[INFO] [stdout] test palindrome_next ... ok
[INFO] [stdout] test palindrome_length ... ok
[INFO] [stdout] test palindrome_safe_index ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 10 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "a9f6fc90086e250e419814ed4ab4c212830e1978002ded3273f2e20ea18f53c8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a9f6fc90086e250e419814ed4ab4c212830e1978002ded3273f2e20ea18f53c8", kill_on_drop: false }`
[INFO] [stdout] a9f6fc90086e250e419814ed4ab4c212830e1978002ded3273f2e20ea18f53c8