[INFO] fetching crate caspaxos-kv 0.2.2...
[INFO] testing caspaxos-kv-0.2.2 against beta-2021-09-08 for beta-1.56-1
[INFO] extracting crate caspaxos-kv 0.2.2 into /workspace/builds/worker-12/source
[INFO] validating manifest of crates.io crate caspaxos-kv 0.2.2 on toolchain beta-2021-09-08
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-09-08" "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-12/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" "+beta-2021-09-08" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-09-08" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] ddeb37ee573c3b67bf9478f7394903a2357b6a11e076693a49c8926fd80cfdc3
[INFO] running `Command { std: "docker" "start" "-a" "ddeb37ee573c3b67bf9478f7394903a2357b6a11e076693a49c8926fd80cfdc3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "ddeb37ee573c3b67bf9478f7394903a2357b6a11e076693a49c8926fd80cfdc3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ddeb37ee573c3b67bf9478f7394903a2357b6a11e076693a49c8926fd80cfdc3", kill_on_drop: false }`
[INFO] [stdout] ddeb37ee573c3b67bf9478f7394903a2357b6a11e076693a49c8926fd80cfdc3
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-09-08" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 3e0276046d7fed0b89c78105fef6fe45569daa665f7737b283cadc6e687f989a
[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" "3e0276046d7fed0b89c78105fef6fe45569daa665f7737b283cadc6e687f989a", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.80
[INFO] [stderr]    Compiling futures-core v0.3.7
[INFO] [stderr]    Compiling futures-io v0.3.7
[INFO] [stderr]    Compiling pin-project-lite v0.1.11
[INFO] [stderr]    Compiling once_cell v1.4.1
[INFO] [stderr]    Compiling getrandom v0.1.15
[INFO] [stderr]    Compiling ppv-lite86 v0.2.9
[INFO] [stderr]    Compiling smallvec v1.4.2
[INFO] [stderr]    Compiling historian v4.0.3
[INFO] [stderr]    Compiling instant v0.1.8
[INFO] [stderr]    Compiling lock_api v0.4.1
[INFO] [stderr]    Compiling fxhash v0.2.1
[INFO] [stderr]    Compiling async-channel v1.5.1
[INFO] [stderr]    Compiling futures-channel v0.3.7
[INFO] [stderr]    Compiling futures-lite v1.11.2
[INFO] [stderr]    Compiling blocking v1.0.2
[INFO] [stderr]    Compiling async-executor v1.3.0
[INFO] [stderr]    Compiling nb-connect v1.0.2
[INFO] [stderr]    Compiling polling v2.0.2
[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 async-fs v1.5.0
[INFO] [stderr]    Compiling signal-hook v0.1.16
[INFO] [stderr]    Compiling async-io v1.1.10
[INFO] [stderr]    Compiling rand_core v0.5.1
[INFO] [stderr]    Compiling parking_lot v0.11.0
[INFO] [stderr]    Compiling rand_chacha v0.2.2
[INFO] [stderr]    Compiling sled v0.34.4
[INFO] [stderr]    Compiling async-process v1.0.1
[INFO] [stderr]    Compiling async-net v1.5.0
[INFO] [stderr]    Compiling rand v0.7.3
[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 42.50s
[INFO] running `Command { std: "docker" "inspect" "3e0276046d7fed0b89c78105fef6fe45569daa665f7737b283cadc6e687f989a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3e0276046d7fed0b89c78105fef6fe45569daa665f7737b283cadc6e687f989a", kill_on_drop: false }`
[INFO] [stdout] 3e0276046d7fed0b89c78105fef6fe45569daa665f7737b283cadc6e687f989a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-09-08" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 798d916a309f633e3511f0a4021c25a71eed7cbe7fef6d0ff1a48ba94bb570b7
[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" "798d916a309f633e3511f0a4021c25a71eed7cbe7fef6d0ff1a48ba94bb570b7", kill_on_drop: false }`
[INFO] [stderr]    Compiling regex-syntax v0.6.20
[INFO] [stderr]    Compiling object v0.21.1
[INFO] [stderr]    Compiling aho-corasick v0.7.14
[INFO] [stderr]    Compiling atty v0.2.14
[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 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 50.55s
[INFO] running `Command { std: "docker" "inspect" "798d916a309f633e3511f0a4021c25a71eed7cbe7fef6d0ff1a48ba94bb570b7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "798d916a309f633e3511f0a4021c25a71eed7cbe7fef6d0ff1a48ba94bb570b7", kill_on_drop: false }`
[INFO] [stdout] 798d916a309f633e3511f0a4021c25a71eed7cbe7fef6d0ff1a48ba94bb570b7
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-09-08" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] e77b8e61af43ed5d8cd6bee72b7a3dfef453cc60bde2f1abf004beb1b0f0cb82
[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" "e77b8e61af43ed5d8cd6bee72b7a3dfef453cc60bde2f1abf004beb1b0f0cb82", 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: `caspaxos-kv` (lib) generated 1 warning
[INFO] [stderr] warning: `caspaxos-kv` (lib test) generated 1 warning (1 duplicate)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.07s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/caspaxos_kv-73da6fe172217bcc)
[INFO] [stdout] 
[INFO] [stdout] running 9 tests
[INFO] [stdout] test bitset::test_bitset ... ok
[INFO] [stdout] test serialization::qc::u8 ... ok
[INFO] [stdout] test serialization::qc::bool ... ok
[INFO] [stdout] test serialization::qc::versioned_value ... ok
[INFO] [stdout] test serialization::qc::envelope ... ok
[INFO] [stdout] test serialization::qc::u64 ... ok
[INFO] [stdout] test serialization::qc::vec ... ok
[INFO] [stdout] test serialization::qc::option ... ok
[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 0.12s
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 3 tests
[INFO] [stderr]      Running tests/cas_linearizability.rs (/opt/rustwide/target/debug/deps/cas_linearizability-0db0f463ec6b3ccd)
[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
[ERROR] error running command: no output for 300 seconds
[INFO] running `Command { std: "docker" "inspect" "e77b8e61af43ed5d8cd6bee72b7a3dfef453cc60bde2f1abf004beb1b0f0cb82", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e77b8e61af43ed5d8cd6bee72b7a3dfef453cc60bde2f1abf004beb1b0f0cb82", kill_on_drop: false }`
[INFO] [stdout] e77b8e61af43ed5d8cd6bee72b7a3dfef453cc60bde2f1abf004beb1b0f0cb82