[INFO] cloning repository https://github.com/MinhongKim1/load-balancer-project
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/MinhongKim1/load-balancer-project" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FMinhongKim1%2Fload-balancer-project", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FMinhongKim1%2Fload-balancer-project'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 9acdc8633b8aaadcac3d69c95af3dfe78e15c939
[INFO] checking MinhongKim1/load-balancer-project against master#779e19d8baa3e3625bd4fc5c85cbb2ad47b43155 for pr-147589-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FMinhongKim1%2Fload-balancer-project" "/workspace/builds/worker-7-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-7-tc1/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/MinhongKim1/load-balancer-project
[INFO] finished tweaking git repo https://github.com/MinhongKim1/load-balancer-project
[INFO] tweaked toml for git repo https://github.com/MinhongKim1/load-balancer-project written to /workspace/builds/worker-7-tc1/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/MinhongKim1/load-balancer-project on toolchain 779e19d8baa3e3625bd4fc5c85cbb2ad47b43155
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+779e19d8baa3e3625bd4fc5c85cbb2ad47b43155" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/MinhongKim1/load-balancer-project already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+779e19d8baa3e3625bd4fc5c85cbb2ad47b43155" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+779e19d8baa3e3625bd4fc5c85cbb2ad47b43155" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 21268db4c829a342c77e733d8e9ebae013ca336db25c7e3bfdda57526d9e4b80
[INFO] running `Command { std: "docker" "start" "-a" "21268db4c829a342c77e733d8e9ebae013ca336db25c7e3bfdda57526d9e4b80", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "21268db4c829a342c77e733d8e9ebae013ca336db25c7e3bfdda57526d9e4b80", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "21268db4c829a342c77e733d8e9ebae013ca336db25c7e3bfdda57526d9e4b80", kill_on_drop: false }`
[INFO] [stdout] 21268db4c829a342c77e733d8e9ebae013ca336db25c7e3bfdda57526d9e4b80
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/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" "RUSTDOCFLAGS=--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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+779e19d8baa3e3625bd4fc5c85cbb2ad47b43155" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] fa6e754b83d93ad822166bab72597ac54084da4d6975c1140705dca4c762ecb1
[INFO] running `Command { std: "docker" "start" "-a" "fa6e754b83d93ad822166bab72597ac54084da4d6975c1140705dca4c762ecb1", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.174
[INFO] [stderr]     Checking smallvec v1.15.1
[INFO] [stderr]     Checking cfg-if v1.0.1
[INFO] [stderr]     Checking tracing-core v0.1.34
[INFO] [stderr]     Checking aho-corasick v1.1.3
[INFO] [stderr]     Checking hashbrown v0.15.4
[INFO] [stderr]     Checking slab v0.4.10
[INFO] [stderr]     Checking futures-task v0.3.31
[INFO] [stderr]     Checking humantime v2.2.0
[INFO] [stderr]     Checking backend_server v0.1.0 (/opt/rustwide/workdir/backend_server)
[INFO] [stderr]    Compiling syn v2.0.104
[INFO] [stderr]     Checking futures-util v0.3.31
[INFO] [stderr]     Checking tracing v0.1.41
[INFO] [stderr]     Checking indexmap v2.10.0
[INFO] [stderr]     Checking regex-automata v0.4.9
[INFO] [stderr]     Checking parking_lot_core v0.9.11
[INFO] [stderr]     Checking socket2 v0.6.0
[INFO] [stderr]     Checking signal-hook-registry v1.4.5
[INFO] [stderr]     Checking mio v1.0.4
[INFO] [stderr]     Checking is-terminal v0.4.16
[INFO] [stderr]     Checking parking_lot v0.12.4
[INFO] [stderr]     Checking regex v1.11.1
[INFO] [stderr]     Checking env_logger v0.10.2
[INFO] [stderr]    Compiling tokio-macros v2.5.0
[INFO] [stderr]     Checking pretty_env_logger v0.5.0
[INFO] [stderr]     Checking tokio v1.47.0
[INFO] [stderr]     Checking tokio-util v0.7.15
[INFO] [stderr]     Checking h2 v0.4.11
[INFO] [stderr]     Checking hyper v1.6.0
[INFO] [stderr]     Checking hyper-util v0.1.16
[INFO] [stderr]     Checking load_balancer v0.1.0 (/opt/rustwide/workdir/load_balancer)
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> load_balancer/src/connection_tracker.rs:40:29
[INFO] [stdout]    |
[INFO] [stdout] 40 |     pub fn track_connection(&self, backend: &str) -> ConnectionGuard {
[INFO] [stdout]    |                             ^^^^^                    ^^^^^^^^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]    |                             |
[INFO] [stdout]    |                             the lifetime is elided here
[INFO] [stdout]    |
[INFO] [stdout]    = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout]    = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]    |
[INFO] [stdout] 40 |     pub fn track_connection(&self, backend: &str) -> ConnectionGuard<'_> {
[INFO] [stdout]    |                                                                     ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> load_balancer/src/connection_tracker.rs:40:29
[INFO] [stdout]    |
[INFO] [stdout] 40 |     pub fn track_connection(&self, backend: &str) -> ConnectionGuard {
[INFO] [stdout]    |                             ^^^^^                    ^^^^^^^^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]    |                             |
[INFO] [stdout]    |                             the lifetime is elided here
[INFO] [stdout]    |
[INFO] [stdout]    = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout]    = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]    |
[INFO] [stdout] 40 |     pub fn track_connection(&self, backend: &str) -> ConnectionGuard<'_> {
[INFO] [stdout]    |                                                                     ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 19.86s
[INFO] running `Command { std: "docker" "inspect" "fa6e754b83d93ad822166bab72597ac54084da4d6975c1140705dca4c762ecb1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "fa6e754b83d93ad822166bab72597ac54084da4d6975c1140705dca4c762ecb1", kill_on_drop: false }`
[INFO] [stdout] fa6e754b83d93ad822166bab72597ac54084da4d6975c1140705dca4c762ecb1
