[INFO] fetching crate caspaxos-kv 0.2.2...
[INFO] testing caspaxos-kv-0.2.2 against try#ecabaf78506b7a4668d42dc20268c086b93f0fad for pr-87041
[INFO] extracting crate caspaxos-kv 0.2.2 into /workspace/builds/worker-13/source
[INFO] validating manifest of crates.io crate caspaxos-kv 0.2.2 on toolchain ecabaf78506b7a4668d42dc20268c086b93f0fad
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+ecabaf78506b7a4668d42dc20268c086b93f0fad" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate caspaxos-kv 0.2.2
[INFO] finished tweaking crates.io crate caspaxos-kv 0.2.2
[INFO] tweaked toml for crates.io crate caspaxos-kv 0.2.2 written to /workspace/builds/worker-13/source/Cargo.toml
[INFO] crate crates.io crate caspaxos-kv 0.2.2 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+ecabaf78506b7a4668d42dc20268c086b93f0fad" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded async-net v1.5.0
[INFO] [stderr]   Downloaded async-io v1.1.10
[INFO] [stderr]   Downloaded futures-channel v0.3.7
[INFO] [stderr]   Downloaded object v0.21.1
[INFO] [stderr]   Downloaded sled v0.34.4
[INFO] [stderr]   Downloaded async-process v1.0.1
[INFO] [stderr]   Downloaded historian v4.0.3
[INFO] [stderr]   Downloaded smol v1.2.4
[INFO] [stderr]   Downloaded futures-io v0.3.7
[INFO] [stderr]   Downloaded backtrace v0.3.53
[INFO] [stderr]   Downloaded futures-core v0.3.7
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+ecabaf78506b7a4668d42dc20268c086b93f0fad" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 9fd22619d4e26c33f02573ca1c9c1b3c28897d2e54fc245a08b9e2d1a3dedadd
[INFO] running `Command { std: "docker" "start" "-a" "9fd22619d4e26c33f02573ca1c9c1b3c28897d2e54fc245a08b9e2d1a3dedadd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "9fd22619d4e26c33f02573ca1c9c1b3c28897d2e54fc245a08b9e2d1a3dedadd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9fd22619d4e26c33f02573ca1c9c1b3c28897d2e54fc245a08b9e2d1a3dedadd", kill_on_drop: false }`
[INFO] [stdout] 9fd22619d4e26c33f02573ca1c9c1b3c28897d2e54fc245a08b9e2d1a3dedadd
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+ecabaf78506b7a4668d42dc20268c086b93f0fad" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 18c6b5f177d0bb4f22ad71720f9171641b27f3f0d421510db88d42241edc6e85
[INFO] running `Command { std: "docker" "start" "-a" "18c6b5f177d0bb4f22ad71720f9171641b27f3f0d421510db88d42241edc6e85", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.80
[INFO] [stderr]    Compiling futures-core v0.3.7
[INFO] [stderr]    Compiling memchr v2.3.3
[INFO] [stderr]    Compiling cache-padded v1.1.1
[INFO] [stderr]    Compiling waker-fn v1.1.0
[INFO] [stderr]    Compiling parking v2.0.0
[INFO] [stderr]    Compiling futures-io v0.3.7
[INFO] [stderr]    Compiling fastrand v1.4.0
[INFO] [stderr]    Compiling log v0.4.11
[INFO] [stderr]    Compiling once_cell v1.4.1
[INFO] [stderr]    Compiling event-listener v2.5.1
[INFO] [stderr]    Compiling getrandom v0.1.15
[INFO] [stderr]    Compiling vec-arena v1.0.0
[INFO] [stderr]    Compiling arc-swap v0.4.7
[INFO] [stderr]    Compiling atomic-waker v1.0.0
[INFO] [stderr]    Compiling lazy_static v1.4.0
[INFO] [stderr]    Compiling smallvec v1.4.2
[INFO] [stderr]    Compiling ppv-lite86 v0.2.9
[INFO] [stderr]    Compiling historian v4.0.3
[INFO] [stderr]    Compiling memoffset v0.5.6
[INFO] [stderr]    Compiling crossbeam-utils v0.7.2
[INFO] [stderr]    Compiling instant v0.1.8
[INFO] [stderr]    Compiling crossbeam-epoch v0.8.2
[INFO] [stderr]    Compiling lock_api v0.4.1
[INFO] [stderr]    Compiling crc32fast v1.2.1
[INFO] [stderr]    Compiling fxhash v0.2.1
[INFO] [stderr]    Compiling concurrent-queue v1.2.2
[INFO] [stderr]    Compiling async-lock v2.3.0
[INFO] [stderr]    Compiling futures-channel v0.3.7
[INFO] [stderr]    Compiling async-channel v1.5.1
[INFO] [stderr]    Compiling futures-lite v1.11.2
[INFO] [stderr]    Compiling polling v2.0.2
[INFO] [stderr]    Compiling nb-connect v1.0.2
[INFO] [stderr]    Compiling signal-hook-registry v1.2.1
[INFO] [stderr]    Compiling parking_lot_core v0.8.0
[INFO] [stderr]    Compiling fs2 v0.4.3
[INFO] [stderr]    Compiling parking_lot v0.11.0
[INFO] [stderr]    Compiling signal-hook v0.1.16
[INFO] [stderr]    Compiling rand_core v0.5.1
[INFO] [stderr]    Compiling blocking v1.0.2
[INFO] [stderr]    Compiling async-io v1.1.10
[INFO] [stderr]    Compiling async-executor v1.3.0
[INFO] [stderr]    Compiling rand_chacha v0.2.2
[INFO] [stderr]    Compiling async-fs v1.5.0
[INFO] [stderr]    Compiling sled v0.34.4
[INFO] [stderr]    Compiling rand v0.7.3
[INFO] [stderr]    Compiling async-net v1.5.0
[INFO] [stderr]    Compiling async-process v1.0.1
[INFO] [stderr]    Compiling smol v1.2.4
[INFO] [stderr]    Compiling uuid v0.8.1
[INFO] [stderr]    Compiling caspaxos-kv v0.2.2 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unnecessary `unsafe` block
[INFO] [stdout]   --> src/udp_net.rs:78:13
[INFO] [stdout]    |
[INFO] [stdout] 78 |             unsafe {
[INFO] [stdout]    |             ^^^^^^ unnecessary `unsafe` block
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_unsafe)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 24.60s
[INFO] running `Command { std: "docker" "inspect" "18c6b5f177d0bb4f22ad71720f9171641b27f3f0d421510db88d42241edc6e85", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "18c6b5f177d0bb4f22ad71720f9171641b27f3f0d421510db88d42241edc6e85", kill_on_drop: false }`
[INFO] [stdout] 18c6b5f177d0bb4f22ad71720f9171641b27f3f0d421510db88d42241edc6e85
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+ecabaf78506b7a4668d42dc20268c086b93f0fad" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 04dd442f549434c9595f7aaaf64531a45e3e622b94e2c106f0e45585b3f1ef91
[INFO] running `Command { std: "docker" "start" "-a" "04dd442f549434c9595f7aaaf64531a45e3e622b94e2c106f0e45585b3f1ef91", kill_on_drop: false }`
[INFO] [stderr]    Compiling gimli v0.22.0
[INFO] [stderr]    Compiling regex-syntax v0.6.20
[INFO] [stderr]    Compiling termcolor v1.1.0
[INFO] [stderr]    Compiling quick-error v1.2.3
[INFO] [stderr]    Compiling object v0.21.1
[INFO] [stderr]    Compiling miniz_oxide v0.4.3
[INFO] [stderr]    Compiling thread_local v1.0.1
[INFO] [stderr]    Compiling atty v0.2.14
[INFO] [stderr]    Compiling aho-corasick v0.7.14
[INFO] [stdout] warning: unnecessary `unsafe` block
[INFO] [stdout]   --> src/udp_net.rs:78:13
[INFO] [stdout]    |
[INFO] [stdout] 78 |             unsafe {
[INFO] [stdout]    |             ^^^^^^ unnecessary `unsafe` block
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_unsafe)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling humantime v1.3.0
[INFO] [stderr]    Compiling addr2line v0.13.0
[INFO] [stderr]    Compiling backtrace v0.3.53
[INFO] [stderr]    Compiling regex v1.4.1
[INFO] [stderr]    Compiling color-backtrace v0.4.2
[INFO] [stderr]    Compiling env_logger v0.7.1
[INFO] [stderr]    Compiling quickcheck v0.9.2
[INFO] [stderr]    Compiling caspaxos-kv v0.2.2 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unnecessary `unsafe` block
[INFO] [stdout]   --> src/udp_net.rs:78:13
[INFO] [stdout]    |
[INFO] [stdout] 78 |             unsafe {
[INFO] [stdout]    |             ^^^^^^ unnecessary `unsafe` block
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_unsafe)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 19.62s
[INFO] running `Command { std: "docker" "inspect" "04dd442f549434c9595f7aaaf64531a45e3e622b94e2c106f0e45585b3f1ef91", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "04dd442f549434c9595f7aaaf64531a45e3e622b94e2c106f0e45585b3f1ef91", kill_on_drop: false }`
[INFO] [stdout] 04dd442f549434c9595f7aaaf64531a45e3e622b94e2c106f0e45585b3f1ef91
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+ecabaf78506b7a4668d42dc20268c086b93f0fad" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 4699c8b5097460eef7f839e66a127820840538915b3bf45a2cf52978b9e47c30
[INFO] running `Command { std: "docker" "start" "-a" "4699c8b5097460eef7f839e66a127820840538915b3bf45a2cf52978b9e47c30", kill_on_drop: false }`
[INFO] [stderr] warning: unnecessary `unsafe` block
[INFO] [stderr]   --> src/udp_net.rs:78:13
[INFO] [stderr]    |
[INFO] [stderr] 78 |             unsafe {
[INFO] [stderr]    |             ^^^^^^ unnecessary `unsafe` block
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_unsafe)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: 1 warning emitted
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary `unsafe` block
[INFO] [stderr]   --> src/udp_net.rs:78:13
[INFO] [stderr]    |
[INFO] [stderr] 78 |             unsafe {
[INFO] [stderr]    |             ^^^^^^ unnecessary `unsafe` block
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_unsafe)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: 1 warning emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.07s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/caspaxos_kv-932706dffc44879f)
[INFO] [stdout] 
[INFO] [stdout] running 9 tests
[INFO] [stdout] test bitset::test_bitset ... ok
[INFO] [stdout] test serialization::qc::bool ... ok
[INFO] [stdout] test serialization::qc::u64 ... ok
[INFO] [stdout] test serialization::qc::versioned_value ... ok
[INFO] [stdout] test serialization::qc::option ... ok
[INFO] [stdout] test serialization::qc::envelope ... ok
[INFO] [stdout] test serialization::qc::u8 ... ok
[INFO] [stdout] test serialization::qc::vec ... ok
[INFO] [stderr]      Running tests/cas_linearizability.rs (/opt/rustwide/target/debug/deps/cas_linearizability-db63f7aa6b3d2ab7)
[INFO] [stdout] test bitset::qc::bitset ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 9 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.07s
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 3 tests
[INFO] [stdout] test basic ... ok
[INFO] [stdout] test cas_exact_writes has been running for over 60 seconds
[INFO] [stdout] test cas_monotonicity has been running for over 60 seconds
[INFO] [stdout] test cas_exact_writes ... ok
[INFO] [stdout] test cas_monotonicity ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 3 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 328.50s
[INFO] [stdout] 
[INFO] [stderr]      Running tests/flake_detector.rs (/opt/rustwide/target/debug/deps/flake_detector-e9061adf1d02048d)
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test flake_detector ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 1.04s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests caspaxos-kv
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test src/simulator.rs - simulator::simulate (line 22) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 13.62s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "4699c8b5097460eef7f839e66a127820840538915b3bf45a2cf52978b9e47c30", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4699c8b5097460eef7f839e66a127820840538915b3bf45a2cf52978b9e47c30", kill_on_drop: false }`
[INFO] [stdout] 4699c8b5097460eef7f839e66a127820840538915b3bf45a2cf52978b9e47c30