[INFO] cloning repository https://github.com/wangyuntao/leetcode-rs
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/wangyuntao/leetcode-rs" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fwangyuntao%2Fleetcode-rs", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fwangyuntao%2Fleetcode-rs'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] e88111c5e2a05af8f8f794d46af5580b83ea5841
[INFO] testing wangyuntao/leetcode-rs against master#5d5ff84130da0d74c6ece368dbe821d8f83fa526 for pr-79296
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fwangyuntao%2Fleetcode-rs" "/workspace/builds/worker-2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/wangyuntao/leetcode-rs on toolchain 5d5ff84130da0d74c6ece368dbe821d8f83fa526
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+5d5ff84130da0d74c6ece368dbe821d8f83fa526" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/wangyuntao/leetcode-rs
[INFO] finished tweaking git repo https://github.com/wangyuntao/leetcode-rs
[INFO] tweaked toml for git repo https://github.com/wangyuntao/leetcode-rs written to /workspace/builds/worker-2/source/Cargo.toml
[INFO] crate git repo https://github.com/wangyuntao/leetcode-rs already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+5d5ff84130da0d74c6ece368dbe821d8f83fa526" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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" "rustops/crates-build-env@sha256:c8ac004eab7d63a0ad09a2dde3d3353ba464f767bee4de425dc8f74c46a1905e" "/opt/rustwide/cargo-home/bin/cargo" "+5d5ff84130da0d74c6ece368dbe821d8f83fa526" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 3e95bc4f9fab3c0e44a6a3bdc4b7fe25a372e9d60c903aeeddf149fe625eb5c4
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "3e95bc4f9fab3c0e44a6a3bdc4b7fe25a372e9d60c903aeeddf149fe625eb5c4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "3e95bc4f9fab3c0e44a6a3bdc4b7fe25a372e9d60c903aeeddf149fe625eb5c4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3e95bc4f9fab3c0e44a6a3bdc4b7fe25a372e9d60c903aeeddf149fe625eb5c4", kill_on_drop: false }`
[INFO] [stdout] 3e95bc4f9fab3c0e44a6a3bdc4b7fe25a372e9d60c903aeeddf149fe625eb5c4
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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=forbid" "-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" "rustops/crates-build-env@sha256:c8ac004eab7d63a0ad09a2dde3d3353ba464f767bee4de425dc8f74c46a1905e" "/opt/rustwide/cargo-home/bin/cargo" "+5d5ff84130da0d74c6ece368dbe821d8f83fa526" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] c615cbdc7b098eab6c4d06e41f353ce089893bee710fd9f0f48718c220d79ff8
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "c615cbdc7b098eab6c4d06e41f353ce089893bee710fd9f0f48718c220d79ff8", kill_on_drop: false }`
[INFO] [stderr]    Compiling leetcode-rs v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused return value of `std::mem::replace` that must be used
[INFO] [stdout]   --> src/p0083_remove_duplicates_from_sorted_list.rs:32:13
[INFO] [stdout]    |
[INFO] [stdout] 32 |             std::mem::replace(&mut b1.next, b2n);
[INFO] [stdout]    |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout]    = note: if you don't need the old value, you can just assign the new value directly
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.63s
[INFO] running `Command { std: "docker" "inspect" "c615cbdc7b098eab6c4d06e41f353ce089893bee710fd9f0f48718c220d79ff8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c615cbdc7b098eab6c4d06e41f353ce089893bee710fd9f0f48718c220d79ff8", kill_on_drop: false }`
[INFO] [stdout] c615cbdc7b098eab6c4d06e41f353ce089893bee710fd9f0f48718c220d79ff8
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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=forbid" "-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" "rustops/crates-build-env@sha256:c8ac004eab7d63a0ad09a2dde3d3353ba464f767bee4de425dc8f74c46a1905e" "/opt/rustwide/cargo-home/bin/cargo" "+5d5ff84130da0d74c6ece368dbe821d8f83fa526" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] a0182cf17fa1de1abe50f252f1291644337d2a20c34903d9f0dadcf9cad97cd1
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "a0182cf17fa1de1abe50f252f1291644337d2a20c34903d9f0dadcf9cad97cd1", kill_on_drop: false }`
[INFO] [stdout] warning: unused return value of `std::mem::replace` that must be used
[INFO] [stdout]   --> src/p0083_remove_duplicates_from_sorted_list.rs:32:13
[INFO] [stdout]    |
[INFO] [stdout] 32 |             std::mem::replace(&mut b1.next, b2n);
[INFO] [stdout]    |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout]    = note: if you don't need the old value, you can just assign the new value directly
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling leetcode-rs v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused return value of `std::mem::replace` that must be used
[INFO] [stdout]   --> src/p0083_remove_duplicates_from_sorted_list.rs:32:13
[INFO] [stdout]    |
[INFO] [stdout] 32 |             std::mem::replace(&mut b1.next, b2n);
[INFO] [stdout]    |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout]    = note: if you don't need the old value, you can just assign the new value directly
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 1.70s
[INFO] running `Command { std: "docker" "inspect" "a0182cf17fa1de1abe50f252f1291644337d2a20c34903d9f0dadcf9cad97cd1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a0182cf17fa1de1abe50f252f1291644337d2a20c34903d9f0dadcf9cad97cd1", kill_on_drop: false }`
[INFO] [stdout] a0182cf17fa1de1abe50f252f1291644337d2a20c34903d9f0dadcf9cad97cd1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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=forbid" "-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" "rustops/crates-build-env@sha256:c8ac004eab7d63a0ad09a2dde3d3353ba464f767bee4de425dc8f74c46a1905e" "/opt/rustwide/cargo-home/bin/cargo" "+5d5ff84130da0d74c6ece368dbe821d8f83fa526" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 41215e30fb71358e5ce6f537f4a933658c07eea83b289ea045ea221edb29131d
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "41215e30fb71358e5ce6f537f4a933658c07eea83b289ea045ea221edb29131d", kill_on_drop: false }`
[INFO] [stderr] warning: unused return value of `std::mem::replace` that must be used
[INFO] [stderr]   --> src/p0083_remove_duplicates_from_sorted_list.rs:32:13
[INFO] [stderr]    |
[INFO] [stderr] 32 |             std::mem::replace(&mut b1.next, b2n);
[INFO] [stderr]    |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stderr]    = note: if you don't need the old value, you can just assign the new value directly
[INFO] [stderr] 
[INFO] [stderr] warning: 1 warning emitted
[INFO] [stderr] 
[INFO] [stderr] warning: unused return value of `std::mem::replace` that must be used
[INFO] [stderr]   --> src/p0083_remove_duplicates_from_sorted_list.rs:32:13
[INFO] [stderr]    |
[INFO] [stderr] 32 |             std::mem::replace(&mut b1.next, b2n);
[INFO] [stderr]    |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stderr]    = note: if you don't need the old value, you can just assign the new value directly
[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/leetcode_rs-cad780b89f7f51b4
[INFO] [stdout] 
[INFO] [stdout] running 14 tests
[INFO] [stdout] test p0053_maximum_subarray::tests::test ... ok
[INFO] [stdout] test p0038_count_and_say::tests::test ... ok
[INFO] [stdout] test p0058_length_of_last_word::tests::test ... ok
[INFO] [stdout] test p0083_remove_duplicates_from_sorted_list::tests::test ... ok
[INFO] [stdout] test p0066_plus_one::tests::test ... ok
[INFO] [stdout] test p0067_add_binary::tests::test ... ok
[INFO] [stdout] test p0088_merge_sorted_array::tests::test ... ok
[INFO] [stdout] test p0101_symmetric_tree::tests::test ... ok
[INFO] [stdout] test p0104_maximum_depth_of_binary_tree::tests::test ... ok
[INFO] [stdout] test p0121_best_time_to_buy_and_sell_stock::tests::test ... ok
[INFO] [stdout] test p0100_same_tree::tests::test ... ok
[INFO] [stdout] test p0155_min_stack::tests::test ... ok
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/leetcode_rs-5d0bbc5f5e8f0ef4
[INFO] [stdout] test p0168_excel_sheet_column_title::tests::test ... ok
[INFO] [stdout] test p0258_add_digits::tests::test ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 14 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests leetcode-rs
[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] [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 `Command { std: "docker" "inspect" "41215e30fb71358e5ce6f537f4a933658c07eea83b289ea045ea221edb29131d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "41215e30fb71358e5ce6f537f4a933658c07eea83b289ea045ea221edb29131d", kill_on_drop: false }`
[INFO] [stdout] 41215e30fb71358e5ce6f537f4a933658c07eea83b289ea045ea221edb29131d