[INFO] updating cached repository https://github.com/xanahopper/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] 8a93c652b375b453577b2339c3120f3fe5614aea
[INFO] testing xanahopper/leetcode against beta-2020-06-03 for beta-1.45-1
[INFO] running `"git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fxanahopper%2Fleetcode" "/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/xanahopper/leetcode 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/xanahopper/leetcode
[INFO] finished tweaking git repo https://github.com/xanahopper/leetcode
[INFO] tweaked toml for git repo https://github.com/xanahopper/leetcode written to /workspace/builds/worker-12/source/Cargo.toml
[INFO] crate git repo https://github.com/xanahopper/leetcode 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] ac149c53a19afefbdc9fa32f51ec4fd61c413b956dbabee020e85e05a32f60d3
[INFO] running `"docker" "start" "-a" "ac149c53a19afefbdc9fa32f51ec4fd61c413b956dbabee020e85e05a32f60d3"`
[INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted
[INFO] [stderr]    Compiling serde_json v1.0.44
[INFO] [stderr]    Compiling leetcode_test v0.1.1
[INFO] [stderr]    Compiling leetcode_prelude v0.2.2
[INFO] [stderr]    Compiling leetcode v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] warning: unused variable: `s`
[INFO] [stderr]   --> src/leetcode/editor/en/solution_5.rs:26:31
[INFO] [stderr]    |
[INFO] [stderr] 26 |     pub fn longest_palindrome(s: String) -> String {
[INFO] [stderr]    |                               ^ help: if this is intentional, prefix it with an underscore: `_s`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: 1 warning emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 6.82s
[INFO] running `"docker" "inspect" "ac149c53a19afefbdc9fa32f51ec4fd61c413b956dbabee020e85e05a32f60d3"`
[INFO] running `"docker" "rm" "-f" "ac149c53a19afefbdc9fa32f51ec4fd61c413b956dbabee020e85e05a32f60d3"`
[INFO] [stdout] ac149c53a19afefbdc9fa32f51ec4fd61c413b956dbabee020e85e05a32f60d3
[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] [stdout] c4830d4db8e9b68504767b6f05e6cd26c39c64a1191998f21d3405338bbd978f
[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" "c4830d4db8e9b68504767b6f05e6cd26c39c64a1191998f21d3405338bbd978f"`
[INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted
[INFO] [stderr]    Compiling leetcode v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] warning: unused variable: `s`
[INFO] [stderr]   --> src/leetcode/editor/en/solution_5.rs:26:31
[INFO] [stderr]    |
[INFO] [stderr] 26 |     pub fn longest_palindrome(s: String) -> String {
[INFO] [stderr]    |                               ^ help: if this is intentional, prefix it with an underscore: `_s`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: 1 warning emitted
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `s`
[INFO] [stderr]   --> src/leetcode/editor/en/solution_5.rs:26:31
[INFO] [stderr]    |
[INFO] [stderr] 26 |     pub fn longest_palindrome(s: String) -> String {
[INFO] [stderr]    |                               ^ help: if this is intentional, prefix it with an underscore: `_s`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: 1 warning emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 1.49s
[INFO] running `"docker" "inspect" "c4830d4db8e9b68504767b6f05e6cd26c39c64a1191998f21d3405338bbd978f"`
[INFO] running `"docker" "rm" "-f" "c4830d4db8e9b68504767b6f05e6cd26c39c64a1191998f21d3405338bbd978f"`
[INFO] [stdout] c4830d4db8e9b68504767b6f05e6cd26c39c64a1191998f21d3405338bbd978f
[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] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] cb5f046a1ec5b10d8db6607dbc8ac72d46ba4e7e4034c2df02a0746515d40222
[INFO] running `"docker" "start" "-a" "cb5f046a1ec5b10d8db6607dbc8ac72d46ba4e7e4034c2df02a0746515d40222"`
[INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted
[INFO] [stderr] warning: unused variable: `s`
[INFO] [stderr]   --> src/leetcode/editor/en/solution_5.rs:26:31
[INFO] [stderr]    |
[INFO] [stderr] 26 |     pub fn longest_palindrome(s: String) -> String {
[INFO] [stderr]    |                               ^ help: if this is intentional, prefix it with an underscore: `_s`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: 1 warning emitted
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `s`
[INFO] [stderr]   --> src/leetcode/editor/en/solution_5.rs:26:31
[INFO] [stderr]    |
[INFO] [stderr] 26 |     pub fn longest_palindrome(s: String) -> String {
[INFO] [stderr]    |                               ^ help: if this is intentional, prefix it with an underscore: `_s`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: 1 warning emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.08s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/leetcode-4c5d3429f2db38ca
[INFO] [stdout] 
[INFO] [stdout] running 6 tests
[INFO] [stdout] test tests::n1_test ... ok
[INFO] [stdout] test tests::n3_test ... ok
[INFO] [stdout] test tests::n8_test ... ok
[INFO] [stdout] test tests::n2_test ... ok
[INFO] [stdout] test tests::n6_test ... ok
[INFO] [stdout] test tests::n7_test ... ok
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/leetcode-200fcd41605decce
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 6 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests leetcode
[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] [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" "cb5f046a1ec5b10d8db6607dbc8ac72d46ba4e7e4034c2df02a0746515d40222"`
[INFO] running `"docker" "rm" "-f" "cb5f046a1ec5b10d8db6607dbc8ac72d46ba4e7e4034c2df02a0746515d40222"`
[INFO] [stdout] cb5f046a1ec5b10d8db6607dbc8ac72d46ba4e7e4034c2df02a0746515d40222