[INFO] fetching crate cueball 0.3.5...
[INFO] testing cueball-0.3.5 against master#a77da2d454e6caa227a85b16410b95f93495e7e0 for pr-91031
[INFO] extracting crate cueball 0.3.5 into /workspace/builds/worker-1/source
[INFO] validating manifest of crates.io crate cueball 0.3.5 on toolchain a77da2d454e6caa227a85b16410b95f93495e7e0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[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-1/source/Cargo.toml
[INFO] crate crates.io crate cueball 0.3.5 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 5126c627798d6aa8851de1a8444e76375cf5c027b4dd033bd3ee89434a4dff19
[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" "5126c627798d6aa8851de1a8444e76375cf5c027b4dd033bd3ee89434a4dff19", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "5126c627798d6aa8851de1a8444e76375cf5c027b4dd033bd3ee89434a4dff19", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5126c627798d6aa8851de1a8444e76375cf5c027b4dd033bd3ee89434a4dff19", kill_on_drop: false }`
[INFO] [stdout] 5126c627798d6aa8851de1a8444e76375cf5c027b4dd033bd3ee89434a4dff19
[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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 198a70112d03a5d83f9af7cc8d7d4ba79be8f463edbe6496f3dd078cc331e2e8
[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" "198a70112d03a5d83f9af7cc8d7d4ba79be8f463edbe6496f3dd078cc331e2e8", kill_on_drop: false }`
[INFO] [stderr]    Compiling autocfg v0.1.7
[INFO] [stderr]    Compiling rand_core v0.4.2
[INFO] [stderr]    Compiling cfg-if v0.1.10
[INFO] [stderr]    Compiling proc-macro2 v0.4.30
[INFO] [stderr]    Compiling slog v2.5.2
[INFO] [stderr]    Compiling unicode-xid v0.1.0
[INFO] [stderr]    Compiling typenum v1.10.0
[INFO] [stderr]    Compiling lazy_static v1.4.0
[INFO] [stderr]    Compiling crossbeam v0.2.12
[INFO] [stderr]    Compiling instant v0.1.3
[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 getrandom v0.1.14
[INFO] [stderr]    Compiling log v0.4.8
[INFO] [stderr]    Compiling rand_core v0.3.1
[INFO] [stderr]    Compiling rand_jitter v0.1.4
[INFO] [stderr]    Compiling rand_os v0.1.3
[INFO] [stderr]    Compiling rand_hc v0.1.0
[INFO] [stderr]    Compiling rand_isaac v0.1.1
[INFO] [stderr]    Compiling rand_xorshift v0.1.1
[INFO] [stderr]    Compiling rand_core v0.5.1
[INFO] [stderr]    Compiling log v0.3.9
[INFO] [stderr]    Compiling rand_chacha v0.2.2
[INFO] [stderr]    Compiling rand_pcg v0.1.2
[INFO] [stderr]    Compiling rand_chacha v0.1.1
[INFO] [stderr]    Compiling rand v0.6.5
[INFO] [stderr]    Compiling slog-scope v4.3.0
[INFO] [stderr]    Compiling rand v0.7.3
[INFO] [stderr]    Compiling slog-stdlog v3.0.5
[INFO] [stderr]    Compiling quote v0.6.13
[INFO] [stderr]    Compiling syn v0.15.44
[INFO] [stderr]    Compiling chrono v0.4.11
[INFO] [stderr]    Compiling backoff v0.1.6
[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] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 35.13s
[INFO] running `Command { std: "docker" "inspect" "198a70112d03a5d83f9af7cc8d7d4ba79be8f463edbe6496f3dd078cc331e2e8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "198a70112d03a5d83f9af7cc8d7d4ba79be8f463edbe6496f3dd078cc331e2e8", kill_on_drop: false }`
[INFO] [stdout] 198a70112d03a5d83f9af7cc8d7d4ba79be8f463edbe6496f3dd078cc331e2e8
[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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] b8977d18c224a0b5a92b50486586197a10f62f351e477c1e5c5448ab922229b9
[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" "b8977d18c224a0b5a92b50486586197a10f62f351e477c1e5c5448ab922229b9", kill_on_drop: false }`
[INFO] [stderr]    Compiling thread_local v1.0.1
[INFO] [stderr]    Compiling dirs-sys v0.3.4
[INFO] [stderr]    Compiling atty v0.2.14
[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 is never read: `addr`
[INFO] [stdout]   --> tests/basic_test.rs:23:5
[INFO] [stdout]    |
[INFO] [stdout] 23 |     addr: SocketAddr,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `addr`
[INFO] [stdout]   --> examples/basic.rs:23:5
[INFO] [stdout]    |
[INFO] [stdout] 23 |     addr: SocketAddr,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 10.08s
[INFO] running `Command { std: "docker" "inspect" "b8977d18c224a0b5a92b50486586197a10f62f351e477c1e5c5448ab922229b9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b8977d18c224a0b5a92b50486586197a10f62f351e477c1e5c5448ab922229b9", kill_on_drop: false }`
[INFO] [stdout] b8977d18c224a0b5a92b50486586197a10f62f351e477c1e5c5448ab922229b9
[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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 450f5c98a88febc017cc9640650e869da17459d1faa2fe261b7878f1ec775bb0
[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" "450f5c98a88febc017cc9640650e869da17459d1faa2fe261b7878f1ec775bb0", kill_on_drop: false }`
[INFO] [stderr] warning: field is never read: `addr`
[INFO] [stderr]   --> examples/basic.rs:23:5
[INFO] [stderr]    |
[INFO] [stderr] 23 |     addr: SocketAddr,
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `addr`
[INFO] [stderr]   --> tests/basic_test.rs:23:5
[INFO] [stderr]    |
[INFO] [stderr] 23 |     addr: SocketAddr,
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: `cueball` (example "basic") generated 1 warning
[INFO] [stderr] warning: `cueball` (test "basic_test") generated 1 warning
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.07s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/cueball-39cba6a0b02919e6)
[INFO] [stdout] 
[INFO] [stderr]      Running tests/basic_test.rs (/opt/rustwide/target/debug/deps/basic_test-28e91bd805222c5e)
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[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 20 16:25:07.698 DEBG starting decoherence task, interval 300 seconds, build-id: 0.1.0
[INFO] [stdout] Nov 20 16:25:07.701 DEBG starting connection health task, interval 30 seconds, build-id: 0.1.0
[INFO] [stdout] Nov 20 16:25:07.703 INFO Adding backend VdkFzX0HE5+B0VYi+Zx1FIGo8CY=, build-id: 0.1.0
[INFO] [stdout] Nov 20 16:25:07.847 DEBG rebalance var true, build-id: 0.1.0
[INFO] [stdout] Nov 20 16:25:07.887 DEBG Running rebalancer on 0 connections..., build-id: 0.1.0
[INFO] [stdout] Nov 20 16:25:07.887 INFO Backend count: 1, build-id: 0.1.0
[INFO] [stdout] Nov 20 16:25:07.887 INFO Backend key: VdkFzX0HE5+B0VYi+Zx1FIGo8CY=, build-id: 0.1.0
[INFO] [stdout] Nov 20 16:25:07.887 DEBG New connection count: 3 Old Connection Count: 0, build-id: 0.1.0
[INFO] [stdout] Nov 20 16:25:07.887 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 20 16:25:07.888 DEBG Adding new connections, build-id: 0.1.0
[INFO] [stdout] Nov 20 16:25:07.888 DEBG Unwanted connection count: 0, build-id: 0.1.0
[INFO] [stdout] Nov 20 16:25:07.888 DEBG Net total connections: 0, build-id: 0.1.0
[INFO] [stdout] Nov 20 16:25:07.888 DEBG Trying to add more connections: 0, build-id: 0.1.0
[INFO] [stdout] Nov 20 16:25:07.888 DEBG attempting to connect with retry..., build-id: 0.1.0
[INFO] [stdout] Nov 20 16:25:07.888 INFO Added connection for backend VdkFzX0HE5+B0VYi+Zx1FIGo8CY=, build-id: 0.1.0
[INFO] [stdout] Nov 20 16:25:07.888 DEBG Unwanted connection count: 0, build-id: 0.1.0
[INFO] [stdout] Nov 20 16:25:07.888 DEBG Net total connections: 1, build-id: 0.1.0
[INFO] [stdout] Nov 20 16:25:07.888 DEBG Trying to add more connections: 1, build-id: 0.1.0
[INFO] [stdout] Nov 20 16:25:07.888 DEBG attempting to connect with retry..., build-id: 0.1.0
[INFO] [stdout] Nov 20 16:25:07.888 INFO Added connection for backend VdkFzX0HE5+B0VYi+Zx1FIGo8CY=, build-id: 0.1.0
[INFO] [stdout] Nov 20 16:25:07.888 DEBG Unwanted connection count: 0, build-id: 0.1.0
[INFO] [stdout] Nov 20 16:25:07.888 DEBG Net total connections: 2, build-id: 0.1.0
[INFO] [stdout] Nov 20 16:25:07.888 DEBG Trying to add more connections: 2, build-id: 0.1.0
[INFO] [stdout] Nov 20 16:25:07.888 DEBG attempting to connect with retry..., build-id: 0.1.0
[INFO] [stdout] Nov 20 16:25:07.888 INFO Added connection for backend VdkFzX0HE5+B0VYi+Zx1FIGo8CY=, build-id: 0.1.0
[INFO] [stdout] test connection_pool_accounting ... ok
[INFO] [stdout] Nov 20 16:25:08.392 INFO connections queue size: 3, build-id: 0.1.0
[INFO] [stdout] Nov 20 16:25:08.392 INFO closing connection VdkFzX0HE5+B0VYi+Zx1FIGo8CY=, build-id: 0.1.0
[INFO] [stdout] Nov 20 16:25:08.392 INFO closing connection VdkFzX0HE5+B0VYi+Zx1FIGo8CY=, build-id: 0.1.0
[INFO] [stdout] Nov 20 16:25:08.392 INFO closing connection VdkFzX0HE5+B0VYi+Zx1FIGo8CY=, build-id: 0.1.0
[INFO] [stdout] test connection_pool_stop ... ok
[INFO] [stdout] Nov 20 16:25:08.395 INFO Closing unwanted connection for backend VdkFzX0HE5+B0VYi+Zx1FIGo8CY=, build-id: 0.1.0
[INFO] [stdout] Nov 20 16:25:08.399 INFO Closing unwanted connection for backend VdkFzX0HE5+B0VYi+Zx1FIGo8CY=, build-id: 0.1.0
[INFO] [stdout] Nov 20 16:25:08.403 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 20.02s
[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" "450f5c98a88febc017cc9640650e869da17459d1faa2fe261b7878f1ec775bb0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "450f5c98a88febc017cc9640650e869da17459d1faa2fe261b7878f1ec775bb0", kill_on_drop: false }`
[INFO] [stdout] 450f5c98a88febc017cc9640650e869da17459d1faa2fe261b7878f1ec775bb0