[INFO] fetching crate paxos 0.0.5...
[INFO] testing paxos-0.0.5 against 1.59.0 for beta-1.60-1
[INFO] extracting crate paxos 0.0.5 into /workspace/builds/worker-4/source
[INFO] validating manifest of crates.io crate paxos 0.0.5 on toolchain 1.59.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.59.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate paxos 0.0.5
[INFO] finished tweaking crates.io crate paxos 0.0.5
[INFO] tweaked toml for crates.io crate paxos 0.0.5 written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.59.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.59.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+1.59.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] fe6be81fed141cce1a4a253d12e120273c4024f0ca44add66edc86a215a9f556
[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" "fe6be81fed141cce1a4a253d12e120273c4024f0ca44add66edc86a215a9f556", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "fe6be81fed141cce1a4a253d12e120273c4024f0ca44add66edc86a215a9f556", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "fe6be81fed141cce1a4a253d12e120273c4024f0ca44add66edc86a215a9f556", kill_on_drop: false }`
[INFO] [stdout] fe6be81fed141cce1a4a253d12e120273c4024f0ca44add66edc86a215a9f556
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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=warn" "-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@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+1.59.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] c2b97240b69c94a1df081fa0d7a6a47fb3c9df57c247874e06fc78db2eb77e4b
[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" "c2b97240b69c94a1df081fa0d7a6a47fb3c9df57c247874e06fc78db2eb77e4b", kill_on_drop: false }`
[INFO] [stderr]    Compiling parking_lot_core v0.7.2
[INFO] [stderr]    Compiling parking_lot v0.10.2
[INFO] [stderr]    Compiling sled v0.31.0
[INFO] [stderr]    Compiling paxos v0.0.5 (/opt/rustwide/workdir)
[INFO] [stdout] warning: field is never read: `proposers`
[INFO] [stdout]  --> src/client.rs:7:5
[INFO] [stdout]   |
[INFO] [stdout] 7 |     proposers: Vec<String>,
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `req_counter`
[INFO] [stdout]  --> src/client.rs:8:5
[INFO] [stdout]   |
[INFO] [stdout] 8 |     req_counter: u64,
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `in_flight`
[INFO] [stdout]  --> src/client.rs:9:5
[INFO] [stdout]   |
[INFO] [stdout] 9 |     in_flight: HashMap<u64, ()>,
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 18.16s
[INFO] running `Command { std: "docker" "inspect" "c2b97240b69c94a1df081fa0d7a6a47fb3c9df57c247874e06fc78db2eb77e4b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c2b97240b69c94a1df081fa0d7a6a47fb3c9df57c247874e06fc78db2eb77e4b", kill_on_drop: false }`
[INFO] [stdout] c2b97240b69c94a1df081fa0d7a6a47fb3c9df57c247874e06fc78db2eb77e4b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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=warn" "-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@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+1.59.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] fa655b2a34f5c84b1ec53a6f0c2abc0fd956d60f25186bd4aa89d028eaf30078
[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" "fa655b2a34f5c84b1ec53a6f0c2abc0fd956d60f25186bd4aa89d028eaf30078", kill_on_drop: false }`
[INFO] [stderr]    Compiling env_logger v0.7.1
[INFO] [stdout] warning: field is never read: `proposers`
[INFO] [stdout]  --> src/client.rs:7:5
[INFO] [stdout]   |
[INFO] [stdout] 7 |     proposers: Vec<String>,
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `req_counter`
[INFO] [stdout]  --> src/client.rs:8:5
[INFO] [stdout]   |
[INFO] [stdout] 8 |     req_counter: u64,
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `in_flight`
[INFO] [stdout]  --> src/client.rs:9:5
[INFO] [stdout]   |
[INFO] [stdout] 9 |     in_flight: HashMap<u64, ()>,
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling quickcheck v0.9.2
[INFO] [stderr]    Compiling paxos v0.0.5 (/opt/rustwide/workdir)
[INFO] [stdout] warning: field is never read: `proposers`
[INFO] [stdout]  --> src/client.rs:7:5
[INFO] [stdout]   |
[INFO] [stdout] 7 |     proposers: Vec<String>,
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `req_counter`
[INFO] [stdout]  --> src/client.rs:8:5
[INFO] [stdout]   |
[INFO] [stdout] 8 |     req_counter: u64,
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `in_flight`
[INFO] [stdout]  --> src/client.rs:9:5
[INFO] [stdout]   |
[INFO] [stdout] 9 |     in_flight: HashMap<u64, ()>,
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 9.38s
[INFO] running `Command { std: "docker" "inspect" "fa655b2a34f5c84b1ec53a6f0c2abc0fd956d60f25186bd4aa89d028eaf30078", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "fa655b2a34f5c84b1ec53a6f0c2abc0fd956d60f25186bd4aa89d028eaf30078", kill_on_drop: false }`
[INFO] [stdout] fa655b2a34f5c84b1ec53a6f0c2abc0fd956d60f25186bd4aa89d028eaf30078
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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=warn" "-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@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+1.59.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] ae1fa4f905d574a0942b313ea11137a477411b40efa855b0a3e482a5108988c7
[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" "ae1fa4f905d574a0942b313ea11137a477411b40efa855b0a3e482a5108988c7", kill_on_drop: false }`
[INFO] [stdout] 
[INFO] [stderr] warning: field is never read: `proposers`
[INFO] [stdout] running 0 tests
[INFO] [stderr]  --> src/client.rs:7:5
[INFO] [stdout] 
[INFO] [stderr]   |
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stderr] 7 |     proposers: Vec<String>,
[INFO] [stdout] 
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stderr]   |
[INFO] [stdout] running 2 tests
[INFO] [stderr]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] test linearizability_bug_01 ... ok
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `req_counter`
[INFO] [stderr]  --> src/client.rs:8:5
[INFO] [stderr]   |
[INFO] [stderr] 8 |     req_counter: u64,
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `in_flight`
[INFO] [stderr]  --> src/client.rs:9:5
[INFO] [stderr]   |
[INFO] [stderr] 9 |     in_flight: HashMap<u64, ()>,
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: `paxos` (lib) generated 3 warnings
[INFO] [stderr] warning: `paxos` (lib test) generated 3 warnings (3 duplicates)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.05s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/paxos-2c473fb3e6a59416)
[INFO] [stderr]      Running tests/quickcheck.rs (/opt/rustwide/target/debug/deps/quickcheck-1a5d8a1cb2cf53e9)
[INFO] [stdout] test test_quickcheck_paxos_linearizes ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 2 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 16.08s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests paxos
[INFO] [stdout] 
[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] running `Command { std: "docker" "inspect" "ae1fa4f905d574a0942b313ea11137a477411b40efa855b0a3e482a5108988c7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ae1fa4f905d574a0942b313ea11137a477411b40efa855b0a3e482a5108988c7", kill_on_drop: false }`
[INFO] [stdout] ae1fa4f905d574a0942b313ea11137a477411b40efa855b0a3e482a5108988c7