[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] checking vihu/leetcode_rust against try#82acd1d76add2232e19c1f0feb250d2a19ec6efe for pr-81213
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fvihu%2Fleetcode_rust" "/workspace/builds/worker-0/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-0/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/vihu/leetcode_rust on toolchain 82acd1d76add2232e19c1f0feb250d2a19ec6efe
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+82acd1d76add2232e19c1f0feb250d2a19ec6efe" "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-0/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" "+82acd1d76add2232e19c1f0feb250d2a19ec6efe" "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-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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@sha256:21f1ed92105a0ef9b0d27ad8bdeb7f36f9f01ac17fffe3a3f3dc5241fc25d8f4" "/opt/rustwide/cargo-home/bin/cargo" "+82acd1d76add2232e19c1f0feb250d2a19ec6efe" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] f27d614180fc6dcdd486f4e8d9cd4b0a87d1bef100088f2468b0f96dd101af02
[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" "f27d614180fc6dcdd486f4e8d9cd4b0a87d1bef100088f2468b0f96dd101af02", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "f27d614180fc6dcdd486f4e8d9cd4b0a87d1bef100088f2468b0f96dd101af02", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f27d614180fc6dcdd486f4e8d9cd4b0a87d1bef100088f2468b0f96dd101af02", kill_on_drop: false }`
[INFO] [stdout] f27d614180fc6dcdd486f4e8d9cd4b0a87d1bef100088f2468b0f96dd101af02
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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@sha256:21f1ed92105a0ef9b0d27ad8bdeb7f36f9f01ac17fffe3a3f3dc5241fc25d8f4" "/opt/rustwide/cargo-home/bin/cargo" "+82acd1d76add2232e19c1f0feb250d2a19ec6efe" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 398cb4e9a1f8daa6660717b5efa8886d91796f75b7322a27916a4a0856d6f641
[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" "398cb4e9a1f8daa6660717b5efa8886d91796f75b7322a27916a4a0856d6f641", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Checking 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] [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 dev [unoptimized + debuginfo] target(s) in 1.67s
[INFO] running `Command { std: "docker" "inspect" "398cb4e9a1f8daa6660717b5efa8886d91796f75b7322a27916a4a0856d6f641", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "398cb4e9a1f8daa6660717b5efa8886d91796f75b7322a27916a4a0856d6f641", kill_on_drop: false }`
[INFO] [stdout] 398cb4e9a1f8daa6660717b5efa8886d91796f75b7322a27916a4a0856d6f641