[INFO] crate paxos 0.0.2 is already in cache
[INFO] extracting crate paxos 0.0.2 into work/ex/beta-1.37-6/sources/1.36.0/reg/paxos/0.0.2
[INFO] extracting crate paxos 0.0.2 into work/ex/beta-1.37-6/sources/beta-2019-07-23/reg/paxos/0.0.2
[INFO] validating manifest of paxos-0.0.2 on toolchain 1.36.0
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.36.0" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of paxos-0.0.2 on toolchain beta-2019-07-23
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-07-23" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing paxos-0.0.2
[INFO] finished frobbing paxos-0.0.2
[INFO] frobbed toml for paxos-0.0.2 written to work/ex/beta-1.37-6/sources/1.36.0/reg/paxos/0.0.2/Cargo.toml
[INFO] started frobbing paxos-0.0.2
[INFO] finished frobbing paxos-0.0.2
[INFO] frobbed toml for paxos-0.0.2 written to work/ex/beta-1.37-6/sources/beta-2019-07-23/reg/paxos/0.0.2/Cargo.toml
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.36.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-07-23" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.36.0" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-07-23" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] testing paxos-0.0.2 against beta-2019-07-23 for beta-1.37-6
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-2/beta-2019-07-23:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/beta-2019-07-23/reg/paxos/0.0.2:/opt/crater/workdir:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/opt/crater/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/opt/crater/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/crater/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/crater/cargo-home" "-e" "RUSTUP_HOME=/opt/crater/rustup-home" "-w" "/opt/crater/workdir" "-m" "1536M" "--network" "none" "rustops/crates-build-env" "/opt/crater/cargo-home/bin/cargo" "+beta-2019-07-23" "build" "--frozen"`
[INFO] [stdout] 8f5cf21cff0a1bf9afaa42dc7f8677b81ab25281e758399353acc0edfffd8bd2
[INFO] running `"docker" "start" "-a" "8f5cf21cff0a1bf9afaa42dc7f8677b81ab25281e758399353acc0edfffd8bd2"`
[INFO] [stderr]    Compiling pagetable v0.0.3
[INFO] [stderr]    Compiling crossbeam-epoch v0.7.2
[INFO] [stderr]    Compiling sled_sync v0.2.2
[INFO] [stderr]    Compiling historian v3.0.11
[INFO] [stderr]    Compiling pagecache v0.6.0
[INFO] [stderr]    Compiling sled v0.15.21
[INFO] [stderr]    Compiling paxos v0.0.2 (/opt/crater/workdir)
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/proposer.rs:301:21
[INFO] [stderr]     |
[INFO] [stderr] 301 |                 let mut pending = self.in_flight.get_mut(&ballot).unwrap();
[INFO] [stderr]     |                     ----^^^^^^^
[INFO] [stderr]     |                     |
[INFO] [stderr]     |                     help: remove this `mut`
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(unused_mut)] on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 15.29s
[INFO] running `"docker" "inspect" "8f5cf21cff0a1bf9afaa42dc7f8677b81ab25281e758399353acc0edfffd8bd2"`
[INFO] running `"docker" "rm" "-f" "8f5cf21cff0a1bf9afaa42dc7f8677b81ab25281e758399353acc0edfffd8bd2"`
[INFO] [stdout] 8f5cf21cff0a1bf9afaa42dc7f8677b81ab25281e758399353acc0edfffd8bd2
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-2/beta-2019-07-23:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/beta-2019-07-23/reg/paxos/0.0.2:/opt/crater/workdir:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/opt/crater/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/opt/crater/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/crater/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/crater/cargo-home" "-e" "RUSTUP_HOME=/opt/crater/rustup-home" "-w" "/opt/crater/workdir" "-m" "1536M" "--network" "none" "rustops/crates-build-env" "/opt/crater/cargo-home/bin/cargo" "+beta-2019-07-23" "test" "--frozen" "--no-run"`
[INFO] [stdout] 4db169723dc61436ba8587b2799adfac90670f612f54655536708b25fd8d3690
[INFO] running `"docker" "start" "-a" "4db169723dc61436ba8587b2799adfac90670f612f54655536708b25fd8d3690"`
[INFO] [stderr]    Compiling env_logger v0.5.13
[INFO] [stderr]    Compiling quickcheck v0.6.2
[INFO] [stderr]    Compiling paxos v0.0.2 (/opt/crater/workdir)
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> tests/quickcheck.rs:292:29
[INFO] [stderr]     |
[INFO] [stderr] 292 |     fn shrink(&self) -> Box<Iterator<Item = Cluster>> {
[INFO] [stderr]     |                             ^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Iterator<Item = Cluster>`
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(bare_trait_objects)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> tests/quickcheck.rs:468:21
[INFO] [stderr]     |
[INFO] [stderr] 468 |                 let mut entry = value_pool.entry(v).or_insert(0);
[INFO] [stderr]     |                     ----^^^^^
[INFO] [stderr]     |                     |
[INFO] [stderr]     |                     help: remove this `mut`
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(unused_mut)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> tests/quickcheck.rs:482:21
[INFO] [stderr]     |
[INFO] [stderr] 482 |                 let mut count = value_pool.get_mut(&v).unwrap();
[INFO] [stderr]     |                     ----^^^^^
[INFO] [stderr]     |                     |
[INFO] [stderr]     |                     help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/proposer.rs:301:21
[INFO] [stderr]     |
[INFO] [stderr] 301 |                 let mut pending = self.in_flight.get_mut(&ballot).unwrap();
[INFO] [stderr]     |                     ----^^^^^^^
[INFO] [stderr]     |                     |
[INFO] [stderr]     |                     help: remove this `mut`
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(unused_mut)] on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 6.55s
[INFO] running `"docker" "inspect" "4db169723dc61436ba8587b2799adfac90670f612f54655536708b25fd8d3690"`
[INFO] running `"docker" "rm" "-f" "4db169723dc61436ba8587b2799adfac90670f612f54655536708b25fd8d3690"`
[INFO] [stdout] 4db169723dc61436ba8587b2799adfac90670f612f54655536708b25fd8d3690
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-2/beta-2019-07-23:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/beta-2019-07-23/reg/paxos/0.0.2:/opt/crater/workdir:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/opt/crater/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/opt/crater/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/crater/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/crater/cargo-home" "-e" "RUSTUP_HOME=/opt/crater/rustup-home" "-w" "/opt/crater/workdir" "-m" "1536M" "--network" "none" "rustops/crates-build-env" "/opt/crater/cargo-home/bin/cargo" "+beta-2019-07-23" "test" "--frozen"`
[INFO] [stdout] 4dfbad6aa27ed2540d276a261d4dd35525f87fb98fbf90b47945bd5fc78e83ec
[INFO] running `"docker" "start" "-a" "4dfbad6aa27ed2540d276a261d4dd35525f87fb98fbf90b47945bd5fc78e83ec"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.04s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/paxos-a0d3d4b100572714
[INFO] [stderr]      Running /opt/crater/target/debug/deps/quickcheck-f0d20c34e1178b9e
[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
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 2 tests
[INFO] [stdout] test linearizability_bug_01 ... ok
[INFO] [stdout] test test_quickcheck_pagecache_works ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 2 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[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
[INFO] [stdout] 
[INFO] running `"docker" "inspect" "4dfbad6aa27ed2540d276a261d4dd35525f87fb98fbf90b47945bd5fc78e83ec"`
[INFO] running `"docker" "rm" "-f" "4dfbad6aa27ed2540d276a261d4dd35525f87fb98fbf90b47945bd5fc78e83ec"`
[INFO] [stdout] 4dfbad6aa27ed2540d276a261d4dd35525f87fb98fbf90b47945bd5fc78e83ec