[INFO] cloning repository https://github.com/vihu/leetcode_rust
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/vihu/leetcode_rust" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fvihu%2Fleetcode_rust", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fvihu%2Fleetcode_rust'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 61395d5fbf7bbaade6b419fb485e4dc8a04b06c2
[INFO] testing vihu/leetcode_rust against master#b70888601af92f6cdc0364abab3446e418b91d36 for pr-86479
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fvihu%2Fleetcode_rust" "/workspace/builds/worker-1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/vihu/leetcode_rust on toolchain b70888601af92f6cdc0364abab3446e418b91d36
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+b70888601af92f6cdc0364abab3446e418b91d36" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/vihu/leetcode_rust
[INFO] finished tweaking git repo https://github.com/vihu/leetcode_rust
[INFO] tweaked toml for git repo https://github.com/vihu/leetcode_rust written to /workspace/builds/worker-1/source/Cargo.toml
[INFO] crate git repo https://github.com/vihu/leetcode_rust already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+b70888601af92f6cdc0364abab3446e418b91d36" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+b70888601af92f6cdc0364abab3446e418b91d36" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 789f39e40a7a4bae491a3cfd6c741ce512402c906b71ab0ad3fa4996a91d3497
[INFO] running `Command { std: "docker" "start" "-a" "789f39e40a7a4bae491a3cfd6c741ce512402c906b71ab0ad3fa4996a91d3497", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "789f39e40a7a4bae491a3cfd6c741ce512402c906b71ab0ad3fa4996a91d3497", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "789f39e40a7a4bae491a3cfd6c741ce512402c906b71ab0ad3fa4996a91d3497", kill_on_drop: false }`
[INFO] [stdout] 789f39e40a7a4bae491a3cfd6c741ce512402c906b71ab0ad3fa4996a91d3497
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+b70888601af92f6cdc0364abab3446e418b91d36" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] e2889cc9c43be3806751a005f4b4c63e07759d34852b65fea0b2f2cb2b9dfe51
[INFO] running `Command { std: "docker" "start" "-a" "e2889cc9c43be3806751a005f4b4c63e07759d34852b65fea0b2f2cb2b9dfe51", kill_on_drop: false }`
[INFO] [stderr]    Compiling leetcode_rust v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: cannot borrow `map` as mutable because it is also borrowed as immutable
[INFO] [stdout]   --> src/google/p560.rs:32:17
[INFO] [stdout]    |
[INFO] [stdout] 27 |         match map.get(&sum) {
[INFO] [stdout]    |               --- immutable borrow occurs here
[INFO] [stdout] ...
[INFO] [stdout] 32 |                 map.insert(sum, v + 1);
[INFO] [stdout]    |                 ^^^             - immutable borrow later used here
[INFO] [stdout]    |                 |
[INFO] [stdout]    |                 mutable borrow occurs here
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(mutable_borrow_reservation_conflict)]` on by default
[INFO] [stdout]    = warning: this borrowing pattern was not meant to be accepted, and may become a hard error in the future
[INFO] [stdout]    = note: for more information, see issue #59159 <https://github.com/rust-lang/rust/issues/59159>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `new`
[INFO] [stdout]   --> src/google/p155.rs:28:8
[INFO] [stdout]    |
[INFO] [stdout] 28 |     fn new() -> Self {
[INFO] [stdout]    |        ^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `push`
[INFO] [stdout]   --> src/google/p155.rs:35:8
[INFO] [stdout]    |
[INFO] [stdout] 35 |     fn push(&mut self, x: i32) {
[INFO] [stdout]    |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `pop`
[INFO] [stdout]   --> src/google/p155.rs:46:8
[INFO] [stdout]    |
[INFO] [stdout] 46 |     fn pop(&mut self) {
[INFO] [stdout]    |        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `top`
[INFO] [stdout]   --> src/google/p155.rs:53:8
[INFO] [stdout]    |
[INFO] [stdout] 53 |     fn top(&self) -> i32 {
[INFO] [stdout]    |        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `get_min`
[INFO] [stdout]   --> src/google/p155.rs:57:8
[INFO] [stdout]    |
[INFO] [stdout] 57 |     fn get_min(&self) -> i32 {
[INFO] [stdout]    |        ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `len`
[INFO] [stdout]   --> src/google/p155.rs:61:8
[INFO] [stdout]    |
[INFO] [stdout] 61 |     fn len(&self) -> usize {
[INFO] [stdout]    |        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 7 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.14s
[INFO] running `Command { std: "docker" "inspect" "e2889cc9c43be3806751a005f4b4c63e07759d34852b65fea0b2f2cb2b9dfe51", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e2889cc9c43be3806751a005f4b4c63e07759d34852b65fea0b2f2cb2b9dfe51", kill_on_drop: false }`
[INFO] [stdout] e2889cc9c43be3806751a005f4b4c63e07759d34852b65fea0b2f2cb2b9dfe51
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+b70888601af92f6cdc0364abab3446e418b91d36" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 07dbfc00a03f297f8d877d682d3c21f925db7a7ba2e9995234bdd0e4768148bc
[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" "07dbfc00a03f297f8d877d682d3c21f925db7a7ba2e9995234bdd0e4768148bc", kill_on_drop: false }`
[INFO] [stderr]    Compiling leetcode_rust v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: cannot borrow `map` as mutable because it is also borrowed as immutable
[INFO] [stdout]   --> src/google/p560.rs:32:17
[INFO] [stdout]    |
[INFO] [stdout] 27 |         match map.get(&sum) {
[INFO] [stdout]    |               --- immutable borrow occurs here
[INFO] [stdout] ...
[INFO] [stdout] 32 |                 map.insert(sum, v + 1);
[INFO] [stdout]    |                 ^^^             - immutable borrow later used here
[INFO] [stdout]    |                 |
[INFO] [stdout]    |                 mutable borrow occurs here
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(mutable_borrow_reservation_conflict)]` on by default
[INFO] [stdout]    = warning: this borrowing pattern was not meant to be accepted, and may become a hard error in the future
[INFO] [stdout]    = note: for more information, see issue #59159 <https://github.com/rust-lang/rust/issues/59159>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 3.44s
[INFO] running `Command { std: "docker" "inspect" "07dbfc00a03f297f8d877d682d3c21f925db7a7ba2e9995234bdd0e4768148bc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "07dbfc00a03f297f8d877d682d3c21f925db7a7ba2e9995234bdd0e4768148bc", kill_on_drop: false }`
[INFO] [stdout] 07dbfc00a03f297f8d877d682d3c21f925db7a7ba2e9995234bdd0e4768148bc
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+b70888601af92f6cdc0364abab3446e418b91d36" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 1b2fdff5e5c9b2b8fd48a0516be2ca56f791dc9c2241ab034c5a1ca5cb8708e3
[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" "1b2fdff5e5c9b2b8fd48a0516be2ca56f791dc9c2241ab034c5a1ca5cb8708e3", kill_on_drop: false }`
[INFO] [stderr] warning: cannot borrow `map` as mutable because it is also borrowed as immutable
[INFO] [stderr]   --> src/google/p560.rs:32:17
[INFO] [stderr]    |
[INFO] [stderr] 27 |         match map.get(&sum) {
[INFO] [stderr]    |               --- immutable borrow occurs here
[INFO] [stderr] ...
[INFO] [stderr] 32 |                 map.insert(sum, v + 1);
[INFO] [stderr]    |                 ^^^             - immutable borrow later used here
[INFO] [stderr]    |                 |
[INFO] [stderr]    |                 mutable borrow occurs here
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(mutable_borrow_reservation_conflict)]` on by default
[INFO] [stderr]    = warning: this borrowing pattern was not meant to be accepted, and may become a hard error in the future
[INFO] [stderr]    = note: for more information, see issue #59159 <https://github.com/rust-lang/rust/issues/59159>
[INFO] [stderr] 
[INFO] [stderr] warning: `leetcode_rust` (bin "leetcode_rust" test) generated 1 warning
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/leetcode_rust-46599f5a84fd8713)
[INFO] [stdout] 
[INFO] [stdout] running 81 tests
[INFO] [stdout] test ds::bst::test::in_order_test ... ok
[INFO] [stdout] test google::p155::test::example2 ... ok
[INFO] [stdout] test ds::bst::test::build_tree ... ok
[INFO] [stdout] test google::p1::test::example1 ... ok
[INFO] [stdout] test google::p20::test::example10 ... ok
[INFO] [stdout] test google::p20::test::example7 ... ok
[INFO] [stdout] test google::p20::test::example3 ... ok
[INFO] [stdout] test google::p231::test::example1 ... ok
[INFO] [stdout] test google::p231::test::example10 ... ok
[INFO] [stdout] test google::p231::test::example11 ... ok
[INFO] [stdout] test google::p231::test::example12 ... ok
[INFO] [stdout] test google::p231::test::example13 ... ok
[INFO] [stdout] test google::p231::test::example2 ... ok
[INFO] [stdout] test google::p231::test::example3 ... ok
[INFO] [stdout] test google::p20::test::example8 ... ok
[INFO] [stdout] test google::p20::test::example4 ... ok
[INFO] [stdout] test google::p20::test::example9 ... ok
[INFO] [stdout] test google::p200::test::example2 ... ok
[INFO] [stdout] test google::p155::test::example1 ... ok
[INFO] [stdout] test google::p20::test::example6 ... ok
[INFO] [stdout] test google::p20::test::example1 ... ok
[INFO] [stdout] test google::p1::test::example3 ... ok
[INFO] [stdout] test google::p20::test::example2 ... ok
[INFO] [stdout] test google::p231::test::example4 ... ok
[INFO] [stdout] test google::p173::test::create_iter ... ok
[INFO] [stdout] test google::p231::test::example5 ... ok
[INFO] [stdout] test google::p173::test::build_tree ... ok
[INFO] [stdout] test google::p1::test::example2 ... ok
[INFO] [stdout] test google::p200::test::example1 ... ok
[INFO] [stdout] test google::p20::test::example11 ... ok
[INFO] [stdout] test google::p326::test::example3 ... ok
[INFO] [stdout] test google::p20::test::example5 ... ok
[INFO] [stdout] test google::p326::test::example4 ... ok
[INFO] [stdout] test google::p326::test::example6 ... ok
[INFO] [stdout] test google::p326::test::example5 ... ok
[INFO] [stdout] test google::p231::test::example6 ... ok
[INFO] [stdout] test google::p345::test::example4 ... ok
[INFO] [stdout] test google::p231::test::example7 ... ok
[INFO] [stdout] test google::p231::test::example8 ... ok
[INFO] [stdout] test google::p345::test::example2 ... ok
[INFO] [stdout] test google::p345::test::example1 ... ok
[INFO] [stdout] test google::p345::test::example6 ... ok
[INFO] [stdout] test google::p387::test::example4 ... ok
[INFO] [stdout] test google::p345::test::example3 ... ok
[INFO] [stdout] test google::p387::test::example3 ... ok
[INFO] [stdout] test google::p387::test::example2 ... ok
[INFO] [stdout] test google::p345::test::example5 ... ok
[INFO] [stdout] test google::p345::test::example7 ... ok
[INFO] [stdout] test google::p415::test::example3 ... ok
[INFO] [stdout] test google::p50::test::example1 ... ok
[INFO] [stdout] test google::p50::test::example3 ... ok
[INFO] [stdout] test google::p50::test::example4 ... ok
[INFO] [stdout] test google::p560::test::example1 ... ok
[INFO] [stdout] test google::p56::test::example1 ... ok
[INFO] [stdout] test google::p415::test::example5 ... ok
[INFO] [stdout] test google::p448::test::example1 ... ok
[INFO] [stdout] test google::p463::test::example2 ... ok
[INFO] [stdout] test google::p415::test::example6 ... ok
[INFO] [stdout] test google::p463::test::example1 ... ok
[INFO] [stdout] test google::p406::test::example1 ... ok
[INFO] [stdout] test google::p739::test::example1 ... ok
[INFO] [stdout] test google::p415::test::example2 ... ok
[INFO] [stdout] test google::p832::test::example2 ... ok
[INFO] [stdout] test google::p415::test::example1 ... ok
[INFO] [stdout] test google::p253::test::example1 ... ok
[INFO] [stdout] test google::p66::test::example1 ... ok
[INFO] [stdout] test google::p326::test::example1 ... ok
[INFO] [stdout] test google::p832::test::example1 ... ok
[INFO] [stdout] test google::p253::test::example2 ... ok
[INFO] [stdout] test google::p929::test::example1 ... ok
[INFO] [stdout] test google::p929::test::example4 ... ok
[INFO] [stdout] test google::p929::test::example3 ... ok
[INFO] [stdout] test google::p929::test::example2 ... ok
[INFO] [stdout] test google::p326::test::example2 ... ok
[INFO] [stdout] test google::p66::test::example2 ... ok
[INFO] [stdout] test google::p231::test::example9 ... ok
[INFO] [stdout] test google::p415::test::example4 ... ok
[INFO] [stdout] test google::p387::test::example1 ... ok
[INFO] [stdout] test google::p657::test::example1 ... ok
[INFO] [stdout] test google::p56::test::example2 ... ok
[INFO] [stdout] test google::p657::test::example2 ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 81 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.03s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "1b2fdff5e5c9b2b8fd48a0516be2ca56f791dc9c2241ab034c5a1ca5cb8708e3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1b2fdff5e5c9b2b8fd48a0516be2ca56f791dc9c2241ab034c5a1ca5cb8708e3", kill_on_drop: false }`
[INFO] [stdout] 1b2fdff5e5c9b2b8fd48a0516be2ca56f791dc9c2241ab034c5a1ca5cb8708e3