[INFO] fetching crate rhododendron 0.7.0...
[INFO] testing rhododendron-0.7.0 against 1.54.0 for beta-1.55-1
[INFO] extracting crate rhododendron 0.7.0 into /workspace/builds/worker-57/source
[INFO] validating manifest of crates.io crate rhododendron 0.7.0 on toolchain 1.54.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.54.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate rhododendron 0.7.0
[INFO] finished tweaking crates.io crate rhododendron 0.7.0
[INFO] tweaked toml for crates.io crate rhododendron 0.7.0 written to /workspace/builds/worker-57/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.54.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.54.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-57/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-57/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" "+1.54.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 7880a3327a450cf7e2d0e87b77374083d0a9041783103427330822f3c19a2594
[INFO] running `Command { std: "docker" "start" "-a" "7880a3327a450cf7e2d0e87b77374083d0a9041783103427330822f3c19a2594", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "7880a3327a450cf7e2d0e87b77374083d0a9041783103427330822f3c19a2594", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7880a3327a450cf7e2d0e87b77374083d0a9041783103427330822f3c19a2594", kill_on_drop: false }`
[INFO] [stdout] 7880a3327a450cf7e2d0e87b77374083d0a9041783103427330822f3c19a2594
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-57/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-57/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+1.54.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 413338a479c68837dea747497cfcf8076dd75c948b1994c55c968965d262eca5
[INFO] running `Command { std: "docker" "start" "-a" "413338a479c68837dea747497cfcf8076dd75c948b1994c55c968965d262eca5", kill_on_drop: false }`
[INFO] [stderr]    Compiling memchr v2.4.0
[INFO] [stderr]    Compiling error-chain v0.12.4
[INFO] [stderr]    Compiling object v0.26.0
[INFO] [stderr]    Compiling backtrace v0.3.61
[INFO] [stderr]    Compiling rhododendron v0.7.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: use of deprecated associated function `std::error::Error::description`: use the Display impl or to_string()
[INFO] [stdout]    --> src/lib.rs:314:19
[INFO] [stdout]     |
[INFO] [stdout] 314 |         write!(f, "{}", ::std::error::Error::description(self))
[INFO] [stdout]     |                         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(deprecated)]` 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 8.09s
[INFO] running `Command { std: "docker" "inspect" "413338a479c68837dea747497cfcf8076dd75c948b1994c55c968965d262eca5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "413338a479c68837dea747497cfcf8076dd75c948b1994c55c968965d262eca5", kill_on_drop: false }`
[INFO] [stdout] 413338a479c68837dea747497cfcf8076dd75c948b1994c55c968965d262eca5
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-57/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-57/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+1.54.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 3ebd57d17b57c1eea731f8808a5ef8a5fdbe8d2ac2868873fed62af5759d3427
[INFO] running `Command { std: "docker" "start" "-a" "3ebd57d17b57c1eea731f8808a5ef8a5fdbe8d2ac2868873fed62af5759d3427", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling radium v0.3.0
[INFO] [stderr]    Compiling arrayvec v0.5.2
[INFO] [stderr]    Compiling byte-slice-cast v0.3.5
[INFO] [stderr]    Compiling tokio-sync v0.1.8
[INFO] [stderr]    Compiling tokio-timer v0.1.2
[INFO] [stderr]    Compiling crossbeam-utils v0.7.2
[INFO] [stderr]    Compiling mio v0.6.23
[INFO] [stderr]    Compiling proc-macro-crate v0.1.5
[INFO] [stderr]    Compiling tokio-io v0.1.13
[INFO] [stderr]    Compiling parking_lot v0.9.0
[INFO] [stdout] warning: use of deprecated associated function `std::error::Error::description`: use the Display impl or to_string()
[INFO] [stdout]    --> src/lib.rs:314:19
[INFO] [stdout]     |
[INFO] [stdout] 314 |         write!(f, "{}", ::std::error::Error::description(self))
[INFO] [stdout]     |                         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling bitvec v0.17.4
[INFO] [stderr]    Compiling tokio-executor v0.1.10
[INFO] [stderr]    Compiling crossbeam-epoch v0.8.2
[INFO] [stderr]    Compiling crossbeam-queue v0.2.3
[INFO] [stderr]    Compiling parity-scale-codec-derive v1.2.3
[INFO] [stderr]    Compiling tokio-codec v0.1.2
[INFO] [stderr]    Compiling tokio-current-thread v0.1.7
[INFO] [stderr]    Compiling tokio-timer v0.2.13
[INFO] [stderr]    Compiling crossbeam-deque v0.7.4
[INFO] [stderr]    Compiling tokio-reactor v0.1.12
[INFO] [stderr]    Compiling mio-uds v0.6.8
[INFO] [stderr]    Compiling tokio-threadpool v0.1.18
[INFO] [stderr]    Compiling tokio-uds v0.2.7
[INFO] [stderr]    Compiling tokio-udp v0.1.6
[INFO] [stderr]    Compiling tokio-tcp v0.1.4
[INFO] [stderr]    Compiling tokio-fs v0.1.7
[INFO] [stderr]    Compiling tokio v0.1.22
[INFO] [stderr]    Compiling tokio-core v0.1.18
[INFO] [stderr]    Compiling parity-scale-codec v1.3.7
[INFO] [stderr]    Compiling rhododendron v0.7.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/tests.rs:131:26
[INFO] [stdout]     |
[INFO] [stdout] 131 |     type RoundTimeout = Box<Future<Item=(), Error=Error>>;
[INFO] [stdout]     |                             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Future<Item=(), Error=Error>`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in the 2021 edition!
[INFO] [stdout]     = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated associated function `std::error::Error::description`: use the Display impl or to_string()
[INFO] [stdout]    --> src/lib.rs:314:19
[INFO] [stdout]     |
[INFO] [stdout] 314 |         write!(f, "{}", ::std::error::Error::description(self))
[INFO] [stdout]     |                         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated associated function `std::sync::atomic::AtomicUsize::compare_and_swap`: Use `compare_exchange` or `compare_exchange_weak` instead
[INFO] [stdout]    --> src/tests.rs:198:20
[INFO] [stdout]     |
[INFO] [stdout] 198 |                     current_round.compare_and_swap(round as usize, round as usize + 1, Ordering::SeqCst);
[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 14.96s
[INFO] running `Command { std: "docker" "inspect" "3ebd57d17b57c1eea731f8808a5ef8a5fdbe8d2ac2868873fed62af5759d3427", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3ebd57d17b57c1eea731f8808a5ef8a5fdbe8d2ac2868873fed62af5759d3427", kill_on_drop: false }`
[INFO] [stdout] 3ebd57d17b57c1eea731f8808a5ef8a5fdbe8d2ac2868873fed62af5759d3427
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-57/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-57/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+1.54.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 2097aca04d52f775f211058113a5a3ffe4bcd797115a2d265457258d828cd555
[INFO] running `Command { std: "docker" "start" "-a" "2097aca04d52f775f211058113a5a3ffe4bcd797115a2d265457258d828cd555", kill_on_drop: false }`
[INFO] [stderr] warning: use of deprecated associated function `std::error::Error::description`: use the Display impl or to_string()
[INFO] [stdout] 
[INFO] [stderr]    --> src/lib.rs:314:19
[INFO] [stdout] running 20 tests
[INFO] [stderr]     |
[INFO] [stderr] 314 |         write!(f, "{}", ::std::error::Error::description(self))
[INFO] [stderr]     |                         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(deprecated)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: 1 warning emitted
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/tests.rs:131:26
[INFO] [stderr]     |
[INFO] [stderr] 131 |     type RoundTimeout = Box<Future<Item=(), Error=Error>>;
[INFO] [stderr]     |                             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Future<Item=(), Error=Error>`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stderr]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in the 2021 edition!
[INFO] [stderr]     = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated associated function `std::error::Error::description`: use the Display impl or to_string()
[INFO] [stderr]    --> src/lib.rs:314:19
[INFO] [stderr]     |
[INFO] [stderr] 314 |         write!(f, "{}", ::std::error::Error::description(self))
[INFO] [stderr]     |                         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(deprecated)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated associated function `std::sync::atomic::AtomicUsize::compare_and_swap`: Use `compare_exchange` or `compare_exchange_weak` instead
[INFO] [stderr]    --> src/tests.rs:198:20
[INFO] [stderr]     |
[INFO] [stderr] 198 |                     current_round.compare_and_swap(round as usize, round as usize + 1, Ordering::SeqCst);
[INFO] [stderr]     |                                   ^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: 3 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.10s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/rhododendron-f9b2c82f2f7f8fec)
[INFO] [stdout] test accumulator::tests::accepts_proposal_from_proposer_only ... ok
[INFO] [stdout] test accumulator::tests::conclude_without_prepare ... ok
[INFO] [stdout] test accumulator::tests::double_commit_is_misbehavior ... ok
[INFO] [stdout] test accumulator::tests::double_propose_is_misbehavior ... ok
[INFO] [stdout] test accumulator::tests::double_prepare_is_misbehavior ... ok
[INFO] [stdout] test accumulator::tests::begin_to_advance ... ok
[INFO] [stdout] test accumulator::tests::prepare_to_advance ... ok
[INFO] [stdout] test accumulator::tests::justification_checks_out ... ok
[INFO] [stdout] test accumulator::tests::prepare_to_commit ... ok
[INFO] [stdout] test accumulator::tests::conclude_different_than_proposed ... ok
[INFO] [stdout] test accumulator::tests::propose_after_advance_does_not_clobber_state ... ok
[INFO] [stdout] test accumulator::tests::propose_after_prepared_does_not_clobber_state ... ok
[INFO] [stdout] test accumulator::tests::reaches_prepare_phase ... ok
[INFO] [stdout] test accumulator::tests::propose_after_committed_does_not_clobber_state ... ok
[INFO] [stdout] test tests::consensus_completes_with_minimum_good_all_initial_proposals_bad ... ok
[INFO] [stdout] test tests::consensus_completes_with_minimum_good ... ok
[INFO] [stdout] test tests::threshold_plus_one_locked_on_bad_proposal ... ok
[INFO] [stdout] test tests::threshold_plus_one_locked_on_proposal_only_one_with_candidate ... ok
[INFO] [stdout] test tests::consensus_completes_even_when_nodes_start_with_a_delay ... ok
[INFO] [stderr]    Doc-tests rhododendron
[INFO] [stdout] test tests::consensus_does_not_complete_without_enough_nodes ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 20 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.54s
[INFO] [stdout] 
[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" "2097aca04d52f775f211058113a5a3ffe4bcd797115a2d265457258d828cd555", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2097aca04d52f775f211058113a5a3ffe4bcd797115a2d265457258d828cd555", kill_on_drop: false }`
[INFO] [stdout] 2097aca04d52f775f211058113a5a3ffe4bcd797115a2d265457258d828cd555
