[INFO] fetching crate cueball 0.3.5...
[INFO] testing cueball-0.3.5 against master#c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38 for pr-146098-7
[INFO] extracting crate cueball 0.3.5 into /workspace/builds/worker-4-tc1/source
[INFO] started tweaking crates.io crate cueball 0.3.5
[INFO] finished tweaking crates.io crate cueball 0.3.5
[INFO] tweaked toml for crates.io crate cueball 0.3.5 written to /workspace/builds/worker-4-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate cueball 0.3.5 on toolchain c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate cueball 0.3.5 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" "+c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded timer v0.2.0
[INFO] [stderr]   Downloaded term v0.6.1
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[INFO] [stderr]   Downloaded backoff v0.1.6
[INFO] [stderr]   Downloaded crossbeam v0.2.12
[INFO] [stderr]   Downloaded arc-swap v0.4.6
[INFO] [stderr]   Downloaded hermit-abi v0.1.12
[INFO] [stderr]   Downloaded slog v2.5.2
[INFO] [stderr]   Downloaded slog-stdlog v3.0.5
[INFO] [stderr]   Downloaded num-integer v0.1.42
[INFO] [stderr]   Downloaded time v0.1.43
[INFO] [stderr]   Downloaded libc v0.2.70
[INFO] [stderr]   Downloaded syn v0.15.44
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 3f1375e9619461fe2230a4d1d0bb3ddf304de8a67e0ff87bc2f38d7339f83563
[INFO] running `Command { std: "docker" "start" "-a" "3f1375e9619461fe2230a4d1d0bb3ddf304de8a67e0ff87bc2f38d7339f83563", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "3f1375e9619461fe2230a4d1d0bb3ddf304de8a67e0ff87bc2f38d7339f83563", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3f1375e9619461fe2230a4d1d0bb3ddf304de8a67e0ff87bc2f38d7339f83563", kill_on_drop: false }`
[INFO] [stdout] 3f1375e9619461fe2230a4d1d0bb3ddf304de8a67e0ff87bc2f38d7339f83563
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 009a1faeadd50045b1060cac8b8cf7f758a582c292e34c782313dbaea5be92d1
[INFO] running `Command { std: "docker" "start" "-a" "009a1faeadd50045b1060cac8b8cf7f758a582c292e34c782313dbaea5be92d1", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.70
[INFO] [stderr]    Compiling autocfg v0.1.7
[INFO] [stderr]    Compiling autocfg v1.0.0
[INFO] [stderr]    Compiling getrandom v0.1.14
[INFO] [stderr]    Compiling slog v2.5.2
[INFO] [stderr]    Compiling log v0.4.8
[INFO] [stderr]    Compiling syn v0.15.44
[INFO] [stderr]    Compiling byteorder v1.3.4
[INFO] [stderr]    Compiling typenum v1.10.0
[INFO] [stderr]    Compiling arc-swap v0.4.6
[INFO] [stderr]    Compiling ppv-lite86 v0.2.6
[INFO] [stderr]    Compiling instant v0.1.3
[INFO] [stderr]    Compiling crossbeam v0.2.12
[INFO] [stderr]    Compiling sha1 v0.6.0
[INFO] [stderr]    Compiling num-traits v0.2.11
[INFO] [stderr]    Compiling num-integer v0.1.42
[INFO] [stderr]    Compiling log v0.3.9
[INFO] [stderr]    Compiling rand_chacha v0.1.1
[INFO] [stderr]    Compiling rand_pcg v0.1.2
[INFO] [stderr]    Compiling rand v0.6.5
[INFO] [stderr]    Compiling rand_os v0.1.3
[INFO] [stderr]    Compiling time v0.1.43
[INFO] [stderr]    Compiling rand_core v0.5.1
[INFO] [stderr]    Compiling base64 v0.10.1
[INFO] [stderr]    Compiling slog-scope v4.3.0
[INFO] [stderr]    Compiling rand_chacha v0.2.2
[INFO] [stderr]    Compiling slog-stdlog v3.0.5
[INFO] [stderr]    Compiling rand v0.7.3
[INFO] [stderr]    Compiling backoff v0.1.6
[INFO] [stderr]    Compiling chrono v0.4.11
[INFO] [stderr]    Compiling timer v0.2.0
[INFO] [stderr]    Compiling derive_more v0.14.1
[INFO] [stderr]    Compiling cueball v0.3.5 (/opt/rustwide/workdir)
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/connection_pool.rs:530:13
[INFO] [stdout]     |
[INFO] [stdout] 530 |         let mut connection_data = connection_data_guard.deref_mut();
[INFO] [stdout]     |             ----^^^^^^^^^^^^^^^
[INFO] [stdout]     |             |
[INFO] [stdout]     |             help: remove this `mut`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_mut)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/connection_pool/types.rs:195:33
[INFO] [stdout]     |
[INFO] [stdout] 195 |     pub fn connection_data_lock(&self) -> MutexGuard<ConnectionData<C>> {
[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] 195 |     pub fn connection_data_lock(&self) -> MutexGuard<'_, ConnectionData<C>> {
[INFO] [stdout]     |                                                      +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/connection_pool/types.rs:249:21
[INFO] [stdout]     |
[INFO] [stdout] 249 |     pub fn get_lock(&self) -> MutexGuard<bool> {
[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] help: use `'_` for type paths
[INFO] [stdout]     |
[INFO] [stdout] 249 |     pub fn get_lock(&self) -> MutexGuard<'_, bool> {
[INFO] [stdout]     |                                          +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 9.48s
[INFO] running `Command { std: "docker" "inspect" "009a1faeadd50045b1060cac8b8cf7f758a582c292e34c782313dbaea5be92d1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "009a1faeadd50045b1060cac8b8cf7f758a582c292e34c782313dbaea5be92d1", kill_on_drop: false }`
[INFO] [stdout] 009a1faeadd50045b1060cac8b8cf7f758a582c292e34c782313dbaea5be92d1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] cdc893762ad5e433952f11f5a9b4cdfeefad712fe9700e124708efb99cf10f18
[INFO] running `Command { std: "docker" "start" "-a" "cdc893762ad5e433952f11f5a9b4cdfeefad712fe9700e124708efb99cf10f18", kill_on_drop: false }`
[INFO] [stderr]    Compiling dirs-sys v0.3.4
[INFO] [stderr]    Compiling atty v0.2.14
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/connection_pool.rs:530:13
[INFO] [stdout]     |
[INFO] [stdout] 530 |         let mut connection_data = connection_data_guard.deref_mut();
[INFO] [stdout]     |             ----^^^^^^^^^^^^^^^
[INFO] [stdout]     |             |
[INFO] [stdout]     |             help: remove this `mut`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_mut)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/connection_pool/types.rs:195:33
[INFO] [stdout]     |
[INFO] [stdout] 195 |     pub fn connection_data_lock(&self) -> MutexGuard<ConnectionData<C>> {
[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] 195 |     pub fn connection_data_lock(&self) -> MutexGuard<'_, ConnectionData<C>> {
[INFO] [stdout]     |                                                      +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/connection_pool/types.rs:249:21
[INFO] [stdout]     |
[INFO] [stdout] 249 |     pub fn get_lock(&self) -> MutexGuard<bool> {
[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] help: use `'_` for type paths
[INFO] [stdout]     |
[INFO] [stdout] 249 |     pub fn get_lock(&self) -> MutexGuard<'_, bool> {
[INFO] [stdout]     |                                          +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling dirs v2.0.2
[INFO] [stderr]    Compiling term v0.6.1
[INFO] [stderr]    Compiling slog-term v2.5.0
[INFO] [stderr]    Compiling cueball v0.3.5 (/opt/rustwide/workdir)
[INFO] [stdout] warning: field `addr` is never read
[INFO] [stdout]   --> examples/basic.rs:23:5
[INFO] [stdout]    |
[INFO] [stdout] 22 | pub struct DummyConnection {
[INFO] [stdout]    |            --------------- field in this struct
[INFO] [stdout] 23 |     addr: SocketAddr,
[INFO] [stdout]    |     ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `DummyConnection` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `addr` is never read
[INFO] [stdout]   --> tests/basic_test.rs:23:5
[INFO] [stdout]    |
[INFO] [stdout] 22 | pub struct DummyConnection {
[INFO] [stdout]    |            --------------- field in this struct
[INFO] [stdout] 23 |     addr: SocketAddr,
[INFO] [stdout]    |     ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `DummyConnection` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/connection_pool.rs:530:13
[INFO] [stdout]     |
[INFO] [stdout] 530 |         let mut connection_data = connection_data_guard.deref_mut();
[INFO] [stdout]     |             ----^^^^^^^^^^^^^^^
[INFO] [stdout]     |             |
[INFO] [stdout]     |             help: remove this `mut`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_mut)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/connection_pool/types.rs:195:33
[INFO] [stdout]     |
[INFO] [stdout] 195 |     pub fn connection_data_lock(&self) -> MutexGuard<ConnectionData<C>> {
[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] 195 |     pub fn connection_data_lock(&self) -> MutexGuard<'_, ConnectionData<C>> {
[INFO] [stdout]     |                                                      +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/connection_pool/types.rs:249:21
[INFO] [stdout]     |
[INFO] [stdout] 249 |     pub fn get_lock(&self) -> MutexGuard<bool> {
[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] help: use `'_` for type paths
[INFO] [stdout]     |
[INFO] [stdout] 249 |     pub fn get_lock(&self) -> MutexGuard<'_, bool> {
[INFO] [stdout]     |                                          +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 2.84s
[INFO] running `Command { std: "docker" "inspect" "cdc893762ad5e433952f11f5a9b4cdfeefad712fe9700e124708efb99cf10f18", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "cdc893762ad5e433952f11f5a9b4cdfeefad712fe9700e124708efb99cf10f18", kill_on_drop: false }`
[INFO] [stdout] cdc893762ad5e433952f11f5a9b4cdfeefad712fe9700e124708efb99cf10f18
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] e8db4f10b4ee714163127e1f338f99657aa13be26db307866481f66c29eae3d9
[INFO] running `Command { std: "docker" "start" "-a" "e8db4f10b4ee714163127e1f338f99657aa13be26db307866481f66c29eae3d9", kill_on_drop: false }`
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/connection_pool.rs:530:13
[INFO] [stderr]     |
[INFO] [stderr] 530 |         let mut connection_data = connection_data_guard.deref_mut();
[INFO] [stderr]     |             ----^^^^^^^^^^^^^^^
[INFO] [stderr]     |             |
[INFO] [stderr]     |             help: remove this `mut`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_mut)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stderr]    --> src/connection_pool/types.rs:195:33
[INFO] [stderr]     |
[INFO] [stderr] 195 |     pub fn connection_data_lock(&self) -> MutexGuard<ConnectionData<C>> {
[INFO] [stderr]     |                                 ^^^^^     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ the same lifetime is hidden here
[INFO] [stderr]     |                                 |
[INFO] [stderr]     |                                 the lifetime is elided here
[INFO] [stderr]     |
[INFO] [stderr]     = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stderr]     = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stderr] help: use `'_` for type paths
[INFO] [stderr]     |
[INFO] [stderr] 195 |     pub fn connection_data_lock(&self) -> MutexGuard<'_, ConnectionData<C>> {
[INFO] [stderr]     |                                                      +++
[INFO] [stderr] 
[INFO] [stderr] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stderr]    --> src/connection_pool/types.rs:249:21
[INFO] [stderr]     |
[INFO] [stderr] 249 |     pub fn get_lock(&self) -> MutexGuard<bool> {
[INFO] [stderr]     |                     ^^^^^     ^^^^^^^^^^^^^^^^ the same lifetime is hidden here
[INFO] [stderr]     |                     |
[INFO] [stderr]     |                     the lifetime is elided here
[INFO] [stderr]     |
[INFO] [stderr]     = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stderr] help: use `'_` for type paths
[INFO] [stderr]     |
[INFO] [stderr] 249 |     pub fn get_lock(&self) -> MutexGuard<'_, bool> {
[INFO] [stderr]     |                                          +++
[INFO] [stderr] 
[INFO] [stderr] warning: `cueball` (lib) generated 3 warnings (run `cargo fix --lib -p cueball` to apply 3 suggestions)
[INFO] [stderr] warning: `cueball` (lib test) generated 3 warnings (3 duplicates)
[INFO] [stderr] warning: field `addr` is never read
[INFO] [stderr]   --> tests/basic_test.rs:23:5
[INFO] [stderr]    |
[INFO] [stderr] 22 | pub struct DummyConnection {
[INFO] [stderr]    |            --------------- field in this struct
[INFO] [stderr] 23 |     addr: SocketAddr,
[INFO] [stderr]    |     ^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `DummyConnection` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stderr]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: field `addr` is never read
[INFO] [stderr]   --> examples/basic.rs:23:5
[INFO] [stderr]    |
[INFO] [stderr] 22 | pub struct DummyConnection {
[INFO] [stderr]    |            --------------- field in this struct
[INFO] [stderr] 23 |     addr: SocketAddr,
[INFO] [stderr]    |     ^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `DummyConnection` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stderr]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: `cueball` (test "basic_test") generated 1 warning
[INFO] [stderr] warning: `cueball` (example "basic") generated 1 warning
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.11s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/cueball-8f247ae929453b94)
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stderr]      Running tests/basic_test.rs (/opt/rustwide/target/debug/deps/basic_test-deff72c4f2fe437e)
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 5 tests
[INFO] [stdout] Nov 11 09:33:28.833 DEBG starting decoherence task, interval 300 seconds, build-id: 0.1.0
[INFO] [stdout] Nov 11 09:33:28.839 DEBG starting connection health task, interval 30 seconds, build-id: 0.1.0
[INFO] [stdout] Nov 11 09:33:28.845 INFO Adding backend VdkFzX0HE5+B0VYi+Zx1FIGo8CY=, build-id: 0.1.0
[INFO] [stdout] Nov 11 09:33:28.949 DEBG rebalance var true, build-id: 0.1.0
[INFO] [stdout] Nov 11 09:33:28.949 DEBG Running rebalancer on 0 connections..., build-id: 0.1.0
[INFO] [stdout] Nov 11 09:33:28.950 INFO Backend count: 1, build-id: 0.1.0
[INFO] [stdout] Nov 11 09:33:28.950 INFO Backend key: VdkFzX0HE5+B0VYi+Zx1FIGo8CY=, build-id: 0.1.0
[INFO] [stdout] Nov 11 09:33:28.950 DEBG New connection count: 3 Old Connection Count: 0, build-id: 0.1.0
[INFO] [stdout] Nov 11 09:33:28.950 DEBG Connection rebalance completed: Ok(
[INFO] [stdout]     Some(
[INFO] [stdout]         {
[INFO] [stdout]             BackendKey(
[INFO] [stdout]                 "VdkFzX0HE5+B0VYi+Zx1FIGo8CY=",
[INFO] [stdout]             ): ConnectionCount(
[INFO] [stdout]                 3,
[INFO] [stdout]             ),
[INFO] [stdout]         },
[INFO] [stdout]     ),
[INFO] [stdout] ), build-id: 0.1.0
[INFO] [stdout] Nov 11 09:33:28.950 DEBG Adding new connections, build-id: 0.1.0
[INFO] [stdout] Nov 11 09:33:28.950 DEBG Unwanted connection count: 0, build-id: 0.1.0
[INFO] [stdout] Nov 11 09:33:28.950 DEBG Net total connections: 0, build-id: 0.1.0
[INFO] [stdout] Nov 11 09:33:28.950 DEBG Trying to add more connections: 0, build-id: 0.1.0
[INFO] [stdout] Nov 11 09:33:28.950 DEBG attempting to connect with retry..., build-id: 0.1.0
[INFO] [stdout] Nov 11 09:33:28.950 INFO Added connection for backend VdkFzX0HE5+B0VYi+Zx1FIGo8CY=, build-id: 0.1.0
[INFO] [stdout] Nov 11 09:33:28.950 DEBG Unwanted connection count: 0, build-id: 0.1.0
[INFO] [stdout] Nov 11 09:33:28.950 DEBG Net total connections: 1, build-id: 0.1.0
[INFO] [stdout] Nov 11 09:33:28.950 DEBG Trying to add more connections: 1, build-id: 0.1.0
[INFO] [stdout] Nov 11 09:33:28.950 DEBG attempting to connect with retry..., build-id: 0.1.0
[INFO] [stdout] Nov 11 09:33:28.950 INFO Added connection for backend VdkFzX0HE5+B0VYi+Zx1FIGo8CY=, build-id: 0.1.0
[INFO] [stdout] Nov 11 09:33:28.950 DEBG Unwanted connection count: 0, build-id: 0.1.0
[INFO] [stdout] Nov 11 09:33:28.950 DEBG Net total connections: 2, build-id: 0.1.0
[INFO] [stdout] Nov 11 09:33:28.950 DEBG Trying to add more connections: 2, build-id: 0.1.0
[INFO] [stdout] Nov 11 09:33:28.950 DEBG attempting to connect with retry..., build-id: 0.1.0
[INFO] [stdout] Nov 11 09:33:28.950 INFO Added connection for backend VdkFzX0HE5+B0VYi+Zx1FIGo8CY=, build-id: 0.1.0
[INFO] [stdout] test connection_pool_accounting ... ok
[INFO] [stdout] Nov 11 09:33:29.450 INFO connections queue size: 3, build-id: 0.1.0
[INFO] [stdout] Nov 11 09:33:29.450 INFO closing connection VdkFzX0HE5+B0VYi+Zx1FIGo8CY=, build-id: 0.1.0
[INFO] [stdout] Nov 11 09:33:29.450 INFO closing connection VdkFzX0HE5+B0VYi+Zx1FIGo8CY=, build-id: 0.1.0
[INFO] [stdout] Nov 11 09:33:29.450 INFO closing connection VdkFzX0HE5+B0VYi+Zx1FIGo8CY=, build-id: 0.1.0
[INFO] [stdout] Nov 11 09:33:29.450 INFO Closing unwanted connection for backend VdkFzX0HE5+B0VYi+Zx1FIGo8CY=, build-id: 0.1.0
[INFO] [stdout] test connection_pool_stop ... ok
[INFO] [stdout] Nov 11 09:33:29.451 INFO Closing unwanted connection for backend VdkFzX0HE5+B0VYi+Zx1FIGo8CY=, build-id: 0.1.0
[INFO] [stdout] Nov 11 09:33:29.452 INFO Closing unwanted connection for backend VdkFzX0HE5+B0VYi+Zx1FIGo8CY=, build-id: 0.1.0
[INFO] [stdout] test connection_pool_claim ... ok
[INFO] [stdout] test connection_pool_no_backends ... ok
[INFO] [stdout] test connection_pool_decoherence ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 5 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 20.06s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests cueball
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test src/lib.rs - (line 136) ... ignored
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 1 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "e8db4f10b4ee714163127e1f338f99657aa13be26db307866481f66c29eae3d9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e8db4f10b4ee714163127e1f338f99657aa13be26db307866481f66c29eae3d9", kill_on_drop: false }`
[INFO] [stdout] e8db4f10b4ee714163127e1f338f99657aa13be26db307866481f66c29eae3d9
