[INFO] updating cached repository https://github.com/JamesZFS/LeetCode
[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] 34283e6a7ea27b8a806d8726241288117896aca5
[INFO] testing JamesZFS/LeetCode against 1.44.0 for beta-1.45-1
[INFO] running `"git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FJamesZFS%2FLeetCode" "/workspace/builds/worker-10/source"`
[INFO] [stderr] Cloning into '/workspace/builds/worker-10/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/JamesZFS/LeetCode on toolchain 1.44.0
[INFO] running `"/workspace/cargo-home/bin/cargo" "+1.44.0" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking git repo https://github.com/JamesZFS/LeetCode
[INFO] finished tweaking git repo https://github.com/JamesZFS/LeetCode
[INFO] tweaked toml for git repo https://github.com/JamesZFS/LeetCode written to /workspace/builds/worker-10/source/Cargo.toml
[INFO] crate git repo https://github.com/JamesZFS/LeetCode already has a lockfile, it will not be regenerated
[INFO] running `"/workspace/cargo-home/bin/cargo" "+1.44.0" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/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" "+1.44.0" "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] 4fa00dc070a0833c47d63a41053dddbae03c2a8bb96b5c87e323ea9c6038ece7
[INFO] running `"docker" "start" "-a" "4fa00dc070a0833c47d63a41053dddbae03c2a8bb96b5c87e323ea9c6038ece7"`
[INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted
[INFO] [stderr]    Compiling leet_code v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] warning: method is never used: `tail`
[INFO] [stderr]   --> src/practice/list.rs:94:5
[INFO] [stderr]    |
[INFO] [stderr] 94 |     fn tail(&self) -> &Link<T> {
[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 dev [unoptimized + debuginfo] target(s) in 1.51s
[INFO] running `"docker" "inspect" "4fa00dc070a0833c47d63a41053dddbae03c2a8bb96b5c87e323ea9c6038ece7"`
[INFO] running `"docker" "rm" "-f" "4fa00dc070a0833c47d63a41053dddbae03c2a8bb96b5c87e323ea9c6038ece7"`
[INFO] [stdout] 4fa00dc070a0833c47d63a41053dddbae03c2a8bb96b5c87e323ea9c6038ece7
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/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" "+1.44.0" "test" "--frozen" "--no-run"`
[INFO] [stdout] f1281b83787243de7e27955608e996403923c6f361b26d0878c6a5eea8bf59ef
[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" "f1281b83787243de7e27955608e996403923c6f361b26d0878c6a5eea8bf59ef"`
[INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted
[INFO] [stderr]    Compiling leet_code v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] warning: method is never used: `tail`
[INFO] [stderr]   --> src/practice/list.rs:94:5
[INFO] [stderr]    |
[INFO] [stderr] 94 |     fn tail(&self) -> &Link<T> {
[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] warning: method is never used: `tail`
[INFO] [stderr]   --> src/practice/list.rs:94:5
[INFO] [stderr]    |
[INFO] [stderr] 94 |     fn tail(&self) -> &Link<T> {
[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 2.93s
[INFO] running `"docker" "inspect" "f1281b83787243de7e27955608e996403923c6f361b26d0878c6a5eea8bf59ef"`
[INFO] running `"docker" "rm" "-f" "f1281b83787243de7e27955608e996403923c6f361b26d0878c6a5eea8bf59ef"`
[INFO] [stdout] f1281b83787243de7e27955608e996403923c6f361b26d0878c6a5eea8bf59ef
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/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" "+1.44.0" "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] b77e538c1496a94d564a7b2bdea2e32874ba5f65bb0a4f2dc1189c6a3392d5b0
[INFO] running `"docker" "start" "-a" "b77e538c1496a94d564a7b2bdea2e32874ba5f65bb0a4f2dc1189c6a3392d5b0"`
[INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted
[INFO] [stderr] warning: method is never used: `tail`
[INFO] [stderr]   --> src/practice/list.rs:94:5
[INFO] [stderr]    |
[INFO] [stderr] 94 |     fn tail(&self) -> &Link<T> {
[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] warning: method is never used: `tail`
[INFO] [stderr]   --> src/practice/list.rs:94:5
[INFO] [stderr]    |
[INFO] [stderr] 94 |     fn tail(&self) -> &Link<T> {
[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 0.02s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/leet_code-4162c75cccf23cef
[INFO] [stdout] 
[INFO] [stdout] running 15 tests
[INFO] [stdout] test array::p1::tests::test ... ok
[INFO] [stdout] test string::p3::tests::test ... ok
[INFO] [stdout] test practice::list::test::iterator ... ok
[INFO] [stdout] test string::p5::tests::test ... ok
[INFO] [stdout] test array::p3::tests::test ... ok
[INFO] [stdout] test string::p2::test::test ... ok
[INFO] [stdout] test practice::heap::tests::sort ... ok
[INFO] [stdout] test string::p1::tests::test ... ok
[INFO] [stdout] test string::p6::tests::test ... ok
[INFO] [stdout] test array::p2::tests::test ... ok
[INFO] [stdout] test practice::heap::tests::basic ... ok
[INFO] [stdout] test practice::sort::tests::test ... ok
[INFO] [stdout] test practice::list::test::insert_remove ... ok
[INFO] [stdout] test string::p7::tests::test ... ok
[INFO] [stdout] test practice::list::test::basics ... ok
[INFO] [stderr]    Doc-tests leet_code
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 15 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] running `"docker" "inspect" "b77e538c1496a94d564a7b2bdea2e32874ba5f65bb0a4f2dc1189c6a3392d5b0"`
[INFO] running `"docker" "rm" "-f" "b77e538c1496a94d564a7b2bdea2e32874ba5f65bb0a4f2dc1189c6a3392d5b0"`
[INFO] [stdout] b77e538c1496a94d564a7b2bdea2e32874ba5f65bb0a4f2dc1189c6a3392d5b0