[INFO] updating cached repository stepchowfun/paxos
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/stepchowfun/paxos
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/stepchowfun/paxos" "work/ex/beta-1.38-1/sources/1.37.0/gh/stepchowfun/paxos"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/1.37.0/gh/stepchowfun/paxos'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/stepchowfun/paxos" "work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/stepchowfun/paxos"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/stepchowfun/paxos'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 9b7023e138e54c715dc175e32c1b4a7fec62b058
[INFO] sha for GitHub repo stepchowfun/paxos: 9b7023e138e54c715dc175e32c1b4a7fec62b058
[INFO] validating manifest of stepchowfun/paxos on toolchain 1.37.0
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.37.0" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of stepchowfun/paxos on toolchain beta-2019-08-13
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-08-13" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing stepchowfun/paxos
[INFO] finished frobbing stepchowfun/paxos
[INFO] frobbed toml for stepchowfun/paxos written to work/ex/beta-1.38-1/sources/1.37.0/gh/stepchowfun/paxos/Cargo.toml
[INFO] started frobbing stepchowfun/paxos
[INFO] finished frobbing stepchowfun/paxos
[INFO] frobbed toml for stepchowfun/paxos written to work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/stepchowfun/paxos/Cargo.toml
[INFO] crate stepchowfun/paxos already has a lockfile, it will not be regenerated
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.37.0" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-08-13" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] testing stepchowfun/paxos against 1.37.0 for beta-1.38-1
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-7/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/stepchowfun/paxos:/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" "+1.37.0" "build" "--frozen"`
[INFO] [stdout] b97204609d5e887359cf28012d0f2a99bbb81c3141099ac339522de260baf4b5
[INFO] running `"docker" "start" "-a" "b97204609d5e887359cf28012d0f2a99bbb81c3141099ac339522de260baf4b5"`
[INFO] [stderr]    Compiling want v0.0.6
[INFO] [stderr]    Compiling term_size v0.3.1
[INFO] [stderr]    Compiling mio v0.6.16
[INFO] [stderr]    Compiling tokio-io v0.1.12
[INFO] [stderr]    Compiling tokio-threadpool v0.1.13
[INFO] [stderr]    Compiling serde v1.0.90
[INFO] [stderr]    Compiling textwrap v0.11.0
[INFO] [stderr]    Compiling clap v2.33.0
[INFO] [stderr]    Compiling tokio-codec v0.1.1
[INFO] [stderr]    Compiling h2 v0.1.18
[INFO] [stderr]    Compiling tokio-reactor v0.1.9
[INFO] [stderr]    Compiling mio-uds v0.6.7
[INFO] [stderr]    Compiling tokio-fs v0.1.6
[INFO] [stderr]    Compiling tokio-uds v0.2.5
[INFO] [stderr]    Compiling tokio-tcp v0.1.3
[INFO] [stderr]    Compiling tokio-udp v0.1.3
[INFO] [stderr]    Compiling tokio v0.1.18
[INFO] [stderr]    Compiling hyper v0.12.27
[INFO] [stderr]    Compiling bincode v1.1.3
[INFO] [stderr]    Compiling serde_yaml v0.8.8
[INFO] [stderr]    Compiling paxos v1.0.0 (/opt/crater/workdir)
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/proposer.rs:160:30
[INFO] [stderr]     |
[INFO] [stderr] 160 |                     ) as Box<Future<Item = (), Error = ()> + Send>
[INFO] [stderr]     |                              ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Future<Item = (), Error = ()> + Send`
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(bare_trait_objects)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/proposer.rs:173:30
[INFO] [stderr]     |
[INFO] [stderr] 173 |                     ) as Box<Future<Item = (), Error = ()> + Send>
[INFO] [stderr]     |                              ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Future<Item = (), Error = ()> + Send`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/main.rs:351:23
[INFO] [stderr]     |
[INFO] [stderr] 351 |             )) as Box<Future<Item = (), Error = ()> + Send>
[INFO] [stderr]     |                       ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Future<Item = (), Error = ()> + Send`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/main.rs:353:37
[INFO] [stderr]     |
[INFO] [stderr] 353 |             Box::new(ok(())) as Box<Future<Item = (), Error = ()> + Send>
[INFO] [stderr]     |                                     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Future<Item = (), Error = ()> + Send`
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 56.22s
[INFO] running `"docker" "inspect" "b97204609d5e887359cf28012d0f2a99bbb81c3141099ac339522de260baf4b5"`
[INFO] running `"docker" "rm" "-f" "b97204609d5e887359cf28012d0f2a99bbb81c3141099ac339522de260baf4b5"`
[INFO] [stdout] b97204609d5e887359cf28012d0f2a99bbb81c3141099ac339522de260baf4b5
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-7/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/stepchowfun/paxos:/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" "+1.37.0" "test" "--frozen" "--no-run"`
[INFO] [stdout] 58142fb1337b7924036aff41a2539d380c27f6c2a6c797d4abce55c5b4e81c59
[INFO] running `"docker" "start" "-a" "58142fb1337b7924036aff41a2539d380c27f6c2a6c797d4abce55c5b4e81c59"`
[INFO] [stderr]    Compiling paxos v1.0.0 (/opt/crater/workdir)
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/proposer.rs:160:30
[INFO] [stderr]     |
[INFO] [stderr] 160 |                     ) as Box<Future<Item = (), Error = ()> + Send>
[INFO] [stderr]     |                              ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Future<Item = (), Error = ()> + Send`
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(bare_trait_objects)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/proposer.rs:173:30
[INFO] [stderr]     |
[INFO] [stderr] 173 |                     ) as Box<Future<Item = (), Error = ()> + Send>
[INFO] [stderr]     |                              ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Future<Item = (), Error = ()> + Send`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/main.rs:351:23
[INFO] [stderr]     |
[INFO] [stderr] 351 |             )) as Box<Future<Item = (), Error = ()> + Send>
[INFO] [stderr]     |                       ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Future<Item = (), Error = ()> + Send`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/main.rs:353:37
[INFO] [stderr]     |
[INFO] [stderr] 353 |             Box::new(ok(())) as Box<Future<Item = (), Error = ()> + Send>
[INFO] [stderr]     |                                     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Future<Item = (), Error = ()> + Send`
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 6.51s
[INFO] running `"docker" "inspect" "58142fb1337b7924036aff41a2539d380c27f6c2a6c797d4abce55c5b4e81c59"`
[INFO] running `"docker" "rm" "-f" "58142fb1337b7924036aff41a2539d380c27f6c2a6c797d4abce55c5b4e81c59"`
[INFO] [stdout] 58142fb1337b7924036aff41a2539d380c27f6c2a6c797d4abce55c5b4e81c59
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-7/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/stepchowfun/paxos:/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" "+1.37.0" "test" "--frozen"`
[INFO] [stdout] 9fa8889242adc103ae1edb312e5a1a9fe6f2908b9bfbe07caedcd90f9ab2b78f
[INFO] running `"docker" "start" "-a" "9fa8889242adc103ae1edb312e5a1a9fe6f2908b9bfbe07caedcd90f9ab2b78f"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.11s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/paxos-81aa0d9b3abffedc
[INFO] [stdout] 
[INFO] [stdout] running 15 tests
[INFO] [stdout] test acceptor::tests::accept_failure ... ok
[INFO] [stdout] test acceptor::tests::accept_success ... ok
[INFO] [stdout] test acceptor::tests::prepare_does_not_decrease_min_proposal_number ... ok
[INFO] [stdout] test acceptor::tests::choose_updates_state ... ok
[INFO] [stdout] test acceptor::tests::prepare_initializes_min_proposal_number ... ok
[INFO] [stdout] test acceptor::tests::prepare_returns_accepted_proposal ... ok
[INFO] [stdout] test config::tests::parse_empty ... ok
[INFO] [stdout] test config::tests::parse_multiple ... ok
[INFO] [stdout] test config::tests::parse_single ... ok
[INFO] [stdout] test proposer::tests::first_proposal_number ... ok
[INFO] [stdout] test proposer::tests::second_proposal_number ... ok
[INFO] [stdout] test state::tests::proposal_ord_proposer_ip ... ok
[INFO] [stdout] test state::tests::proposal_ord_proposer_port ... ok
[INFO] [stdout] test acceptor::tests::prepare_increases_min_proposal_number ... ok
[INFO] [stdout] test state::tests::proposal_ord_round ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 15 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] running `"docker" "inspect" "9fa8889242adc103ae1edb312e5a1a9fe6f2908b9bfbe07caedcd90f9ab2b78f"`
[INFO] running `"docker" "rm" "-f" "9fa8889242adc103ae1edb312e5a1a9fe6f2908b9bfbe07caedcd90f9ab2b78f"`
[INFO] [stdout] 9fa8889242adc103ae1edb312e5a1a9fe6f2908b9bfbe07caedcd90f9ab2b78f