[INFO] updating cached 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" "-c" "remote.origin.fetch=refs/heads/*:refs/heads/*" "fetch" "origin" "--force" "--prune", kill_on_drop: false }`
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 61395d5fbf7bbaade6b419fb485e4dc8a04b06c2
[INFO] testing vihu/leetcode_rust against beta-2020-07-24 for beta-1.46-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fvihu%2Fleetcode_rust" "/workspace/builds/worker-6/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-6/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/vihu/leetcode_rust on toolchain beta-2020-07-24
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2020-07-24" "read-manifest" "--manifest-path" "Cargo.toml", 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-6/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" "+beta-2020-07-24" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--network" "none" "rustops/crates-build-env@sha256:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2020-07-24" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] b43c9bbae8e792d0152d2ad50191bf15b688bc30f7a4d7234c449c88e5d35d99
[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" "b43c9bbae8e792d0152d2ad50191bf15b688bc30f7a4d7234c449c88e5d35d99", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "b43c9bbae8e792d0152d2ad50191bf15b688bc30f7a4d7234c449c88e5d35d99", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b43c9bbae8e792d0152d2ad50191bf15b688bc30f7a4d7234c449c88e5d35d99", kill_on_drop: false }`
[INFO] [stdout] b43c9bbae8e792d0152d2ad50191bf15b688bc30f7a4d7234c449c88e5d35d99
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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@sha256:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2020-07-24" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 9b1a7afcfd6d48f445a6bfd5dc7eb240ba4e10d543ffc1ec4db60bfd157f22b3
[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" "9b1a7afcfd6d48f445a6bfd5dc7eb240ba4e10d543ffc1ec4db60bfd157f22b3", 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 1.01s
[INFO] running `Command { std: "docker" "inspect" "9b1a7afcfd6d48f445a6bfd5dc7eb240ba4e10d543ffc1ec4db60bfd157f22b3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9b1a7afcfd6d48f445a6bfd5dc7eb240ba4e10d543ffc1ec4db60bfd157f22b3", kill_on_drop: false }`
[INFO] [stdout] 9b1a7afcfd6d48f445a6bfd5dc7eb240ba4e10d543ffc1ec4db60bfd157f22b3
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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@sha256:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2020-07-24" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 8dc84c6c2cbc6ef062204d5775c35bed2b7f379171d9bdb31fd7d55a627acf64
[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" "8dc84c6c2cbc6ef062204d5775c35bed2b7f379171d9bdb31fd7d55a627acf64", 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 3.20s
[INFO] running `Command { std: "docker" "inspect" "8dc84c6c2cbc6ef062204d5775c35bed2b7f379171d9bdb31fd7d55a627acf64", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8dc84c6c2cbc6ef062204d5775c35bed2b7f379171d9bdb31fd7d55a627acf64", kill_on_drop: false }`
[INFO] [stdout] 8dc84c6c2cbc6ef062204d5775c35bed2b7f379171d9bdb31fd7d55a627acf64
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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@sha256:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2020-07-24" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] f7d11f47587fe88f5f0e6f72d0ae070637b2a00d59cda2554b0a3322a4e8ee48
[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" "f7d11f47587fe88f5f0e6f72d0ae070637b2a00d59cda2554b0a3322a4e8ee48", kill_on_drop: false }`
[INFO] [stdout] 
[INFO] [stderr] warning: cannot borrow `map` as mutable because it is also borrowed as immutable
[INFO] [stdout] running 81 tests
[INFO] [stderr]   --> src/google/p560.rs:32:17
[INFO] [stdout] test google::p155::test::example1 ... ok
[INFO] [stderr]    |
[INFO] [stdout] test ds::bst::test::build_tree ... ok
[INFO] [stderr] 27 |         match map.get(&sum) {
[INFO] [stdout] test ds::bst::test::in_order_test ... ok
[INFO] [stderr]    |               --- immutable borrow occurs here
[INFO] [stdout] test google::p155::test::example2 ... ok
[INFO] [stderr] ...
[INFO] [stdout] test google::p173::test::build_tree ... ok
[INFO] [stderr] 32 |                 map.insert(sum, v + 1);
[INFO] [stdout] test google::p200::test::example1 ... ok
[INFO] [stderr]    |                 ^^^             - immutable borrow later used here
[INFO] [stdout] test google::p20::test::example1 ... ok
[INFO] [stderr]    |                 |
[INFO] [stdout] test google::p200::test::example2 ... ok
[INFO] [stderr]    |                 mutable borrow occurs here
[INFO] [stdout] test google::p20::test::example7 ... ok
[INFO] [stderr]    |
[INFO] [stdout] test google::p20::test::example6 ... ok
[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: 1 warning emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.04s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/leetcode_rust-6b61dfba817831bc
[INFO] [stdout] test google::p20::test::example8 ... ok
[INFO] [stdout] test google::p231::test::example1 ... ok
[INFO] [stdout] test google::p20::test::example9 ... ok
[INFO] [stdout] test google::p20::test::example4 ... ok
[INFO] [stdout] test google::p1::test::example1 ... ok
[INFO] [stdout] test google::p20::test::example5 ... ok
[INFO] [stdout] test google::p20::test::example2 ... ok
[INFO] [stdout] test google::p20::test::example10 ... ok
[INFO] [stdout] test google::p20::test::example11 ... ok
[INFO] [stdout] test google::p173::test::create_iter ... ok
[INFO] [stdout] test google::p1::test::example2 ... ok
[INFO] [stdout] test google::p1::test::example3 ... ok
[INFO] [stdout] test google::p20::test::example3 ... ok
[INFO] [stdout] test google::p231::test::example10 ... ok
[INFO] [stdout] test google::p231::test::example11 ... ok
[INFO] [stdout] test google::p231::test::example7 ... ok
[INFO] [stdout] test google::p231::test::example8 ... ok
[INFO] [stdout] test google::p253::test::example1 ... 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::example4 ... ok
[INFO] [stdout] test google::p231::test::example9 ... ok
[INFO] [stdout] test google::p253::test::example2 ... ok
[INFO] [stdout] test google::p231::test::example6 ... ok
[INFO] [stdout] test google::p231::test::example5 ... ok
[INFO] [stdout] test google::p345::test::example1 ... ok
[INFO] [stdout] test google::p345::test::example2 ... ok
[INFO] [stdout] test google::p231::test::example3 ... ok
[INFO] [stdout] test google::p326::test::example5 ... ok
[INFO] [stdout] test google::p387::test::example3 ... ok
[INFO] [stdout] test google::p326::test::example6 ... ok
[INFO] [stdout] test google::p326::test::example4 ... ok
[INFO] [stdout] test google::p387::test::example1 ... ok
[INFO] [stdout] test google::p326::test::example3 ... ok
[INFO] [stdout] test google::p326::test::example2 ... ok
[INFO] [stdout] test google::p345::test::example3 ... ok
[INFO] [stdout] test google::p345::test::example6 ... ok
[INFO] [stdout] test google::p326::test::example1 ... ok
[INFO] [stdout] test google::p345::test::example4 ... ok
[INFO] [stdout] test google::p345::test::example5 ... ok
[INFO] [stdout] test google::p345::test::example7 ... ok
[INFO] [stdout] test google::p387::test::example2 ... ok
[INFO] [stdout] test google::p387::test::example4 ... ok
[INFO] [stdout] test google::p415::test::example3 ... ok
[INFO] [stdout] test google::p415::test::example6 ... ok
[INFO] [stdout] test google::p56::test::example1 ... ok
[INFO] [stdout] test google::p415::test::example1 ... ok
[INFO] [stdout] test google::p560::test::example1 ... ok
[INFO] [stdout] test google::p415::test::example4 ... ok
[INFO] [stdout] test google::p448::test::example1 ... ok
[INFO] [stdout] test google::p56::test::example2 ... ok
[INFO] [stdout] test google::p415::test::example2 ... ok
[INFO] [stdout] test google::p832::test::example2 ... ok
[INFO] [stdout] test google::p463::test::example1 ... ok
[INFO] [stdout] test google::p657::test::example1 ... ok
[INFO] [stdout] test google::p463::test::example2 ... ok
[INFO] [stdout] test google::p50::test::example4 ... ok
[INFO] [stdout] test google::p657::test::example2 ... ok
[INFO] [stdout] test google::p66::test::example1 ... ok
[INFO] [stdout] test google::p66::test::example2 ... ok
[INFO] [stdout] test google::p739::test::example1 ... ok
[INFO] [stdout] test google::p832::test::example1 ... ok
[INFO] [stdout] test google::p929::test::example1 ... ok
[INFO] [stdout] test google::p50::test::example3 ... ok
[INFO] [stdout] test google::p50::test::example1 ... ok
[INFO] [stdout] test google::p415::test::example5 ... ok
[INFO] [stdout] test google::p929::test::example2 ... ok
[INFO] [stdout] test google::p406::test::example1 ... ok
[INFO] [stdout] test google::p929::test::example3 ... ok
[INFO] [stdout] test google::p929::test::example4 ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 81 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "f7d11f47587fe88f5f0e6f72d0ae070637b2a00d59cda2554b0a3322a4e8ee48", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f7d11f47587fe88f5f0e6f72d0ae070637b2a00d59cda2554b0a3322a4e8ee48", kill_on_drop: false }`
[INFO] [stdout] f7d11f47587fe88f5f0e6f72d0ae070637b2a00d59cda2554b0a3322a4e8ee48