[INFO] cloning repository https://github.com/demostf/sync-rs
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/demostf/sync-rs" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdemostf%2Fsync-rs", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdemostf%2Fsync-rs'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 582287e8dac6b50a37e696d2639b5ab1077f21f8
[INFO] testing demostf/sync-rs against 1.49.0 for beta-1.50-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdemostf%2Fsync-rs" "/workspace/builds/worker-9/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-9/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/demostf/sync-rs on toolchain 1.49.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.49.0" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/demostf/sync-rs
[INFO] finished tweaking git repo https://github.com/demostf/sync-rs
[INFO] tweaked toml for git repo https://github.com/demostf/sync-rs written to /workspace/builds/worker-9/source/Cargo.toml
[INFO] crate git repo https://github.com/demostf/sync-rs already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.49.0" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/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" "rustops/crates-build-env@sha256:c8ac004eab7d63a0ad09a2dde3d3353ba464f767bee4de425dc8f74c46a1905e" "/opt/rustwide/cargo-home/bin/cargo" "+1.49.0" "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] 492fdd49b2ff536db1afde391c46db2ed0d853800faa44b143103b4fe5930bd3
[INFO] running `Command { std: "docker" "start" "-a" "492fdd49b2ff536db1afde391c46db2ed0d853800faa44b143103b4fe5930bd3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "492fdd49b2ff536db1afde391c46db2ed0d853800faa44b143103b4fe5930bd3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "492fdd49b2ff536db1afde391c46db2ed0d853800faa44b143103b4fe5930bd3", kill_on_drop: false }`
[INFO] [stdout] 492fdd49b2ff536db1afde391c46db2ed0d853800faa44b143103b4fe5930bd3
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/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" "rustops/crates-build-env@sha256:c8ac004eab7d63a0ad09a2dde3d3353ba464f767bee4de425dc8f74c46a1905e" "/opt/rustwide/cargo-home/bin/cargo" "+1.49.0" "build" "--frozen" "--message-format=json", 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] 40d30b1412ee6867e68084c6e0edfbf24bf748e4c4719f08dbcae72effe03f01
[INFO] running `Command { std: "docker" "start" "-a" "40d30b1412ee6867e68084c6e0edfbf24bf748e4c4719f08dbcae72effe03f01", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.77
[INFO] [stderr]    Compiling proc-macro2 v1.0.23
[INFO] [stderr]    Compiling typenum v1.12.0
[INFO] [stderr]    Compiling syn v1.0.42
[INFO] [stderr]    Compiling byte-tools v0.3.1
[INFO] [stderr]    Compiling serde_derive v1.0.116
[INFO] [stderr]    Compiling tinyvec v0.3.4
[INFO] [stderr]    Compiling httparse v1.3.4
[INFO] [stderr]    Compiling serde v1.0.116
[INFO] [stderr]    Compiling ppv-lite86 v0.2.9
[INFO] [stderr]    Compiling serde_json v1.0.57
[INFO] [stderr]    Compiling lazycell v1.3.0
[INFO] [stderr]    Compiling fake-simd v0.1.2
[INFO] [stderr]    Compiling opaque-debug v0.2.3
[INFO] [stderr]    Compiling once_cell v1.4.1
[INFO] [stderr]    Compiling block-padding v0.1.5
[INFO] [stderr]    Compiling unicode-normalization v0.1.13
[INFO] [stderr]    Compiling quote v1.0.7
[INFO] [stderr]    Compiling getrandom v0.1.15
[INFO] [stderr]    Compiling iovec v0.1.4
[INFO] [stderr]    Compiling net2 v0.2.35
[INFO] [stderr]    Compiling idna v0.2.0
[INFO] [stderr]    Compiling bytes v0.4.12
[INFO] [stderr]    Compiling rand_core v0.5.1
[INFO] [stderr]    Compiling generic-array v0.12.3
[INFO] [stderr]    Compiling mio v0.6.22
[INFO] [stderr]    Compiling rand_chacha v0.2.2
[INFO] [stderr]    Compiling digest v0.8.1
[INFO] [stderr]    Compiling block-buffer v0.7.3
[INFO] [stderr]    Compiling url v2.1.1
[INFO] [stderr]    Compiling rand v0.7.3
[INFO] [stderr]    Compiling sha-1 v0.8.2
[INFO] [stderr]    Compiling mio-extras v2.0.6
[INFO] [stderr]    Compiling parity-ws v0.10.0
[INFO] [stderr]    Compiling enum_dispatch v0.2.4
[INFO] [stderr]    Compiling sync v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1m 20s
[INFO] running `Command { std: "docker" "inspect" "40d30b1412ee6867e68084c6e0edfbf24bf748e4c4719f08dbcae72effe03f01", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "40d30b1412ee6867e68084c6e0edfbf24bf748e4c4719f08dbcae72effe03f01", kill_on_drop: false }`
[INFO] [stdout] 40d30b1412ee6867e68084c6e0edfbf24bf748e4c4719f08dbcae72effe03f01
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/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" "rustops/crates-build-env@sha256:c8ac004eab7d63a0ad09a2dde3d3353ba464f767bee4de425dc8f74c46a1905e" "/opt/rustwide/cargo-home/bin/cargo" "+1.49.0" "test" "--frozen" "--no-run" "--message-format=json", 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] 42d787b8824acf84d66d75d89c2aa251d220f6e223005d8a8b7d56c6287258aa
[INFO] running `Command { std: "docker" "start" "-a" "42d787b8824acf84d66d75d89c2aa251d220f6e223005d8a8b7d56c6287258aa", kill_on_drop: false }`
[INFO] [stderr]    Compiling memchr v2.3.3
[INFO] [stderr]    Compiling pkg-config v0.3.18
[INFO] [stderr]    Compiling cc v1.0.60
[INFO] [stderr]    Compiling futures-core v0.3.5
[INFO] [stderr]    Compiling pin-project-internal v0.4.24
[INFO] [stderr]    Compiling futures-sink v0.3.5
[INFO] [stderr]    Compiling openssl v0.10.30
[INFO] [stderr]    Compiling foreign-types-shared v0.1.1
[INFO] [stderr]    Compiling proc-macro-hack v0.5.18
[INFO] [stderr]    Compiling pin-project-lite v0.1.8
[INFO] [stderr]    Compiling futures-io v0.3.5
[INFO] [stderr]    Compiling native-tls v0.2.4
[INFO] [stderr]    Compiling openssl-probe v0.1.2
[INFO] [stderr]    Compiling gimli v0.22.0
[INFO] [stderr]    Compiling regex-syntax v0.6.18
[INFO] [stderr]    Compiling adler v0.2.3
[INFO] [stderr]    Compiling base64 v0.12.3
[INFO] [stderr]    Compiling rustc-demangle v0.1.16
[INFO] [stderr]    Compiling object v0.20.0
[INFO] [stderr]    Compiling sha1 v0.6.0
[INFO] [stderr]    Compiling maplit v1.0.2
[INFO] [stderr]    Compiling miniz_oxide v0.4.2
[INFO] [stderr]    Compiling futures-task v0.3.5
[INFO] [stderr]    Compiling foreign-types v0.3.2
[INFO] [stderr]    Compiling futures-channel v0.3.5
[INFO] [stderr]    Compiling termios v0.3.2
[INFO] [stderr]    Compiling rand_os v0.1.3
[INFO] [stderr]    Compiling clicolors-control v1.0.1
[INFO] [stderr]    Compiling rand v0.6.5
[INFO] [stderr]    Compiling tokio v0.2.22
[INFO] [stderr]    Compiling openssl-sys v0.9.58
[INFO] [stderr]    Compiling futures-macro v0.3.5
[INFO] [stderr]    Compiling regex v1.3.9
[INFO] [stderr]    Compiling portpicker v0.1.0
[INFO] [stderr]    Compiling tokio-util v0.3.1
[INFO] [stderr]    Compiling console v0.9.2
[INFO] [stderr]    Compiling pin-project v0.4.24
[INFO] [stderr]    Compiling futures-util v0.3.5
[INFO] [stderr]    Compiling websocket-codec v0.3.5
[INFO] [stderr]    Compiling addr2line v0.13.0
[INFO] [stderr]    Compiling backtrace v0.3.50
[INFO] [stderr]    Compiling better-panic v0.2.0
[INFO] [stderr]    Compiling tokio-tls v0.3.1
[INFO] [stderr]    Compiling futures-executor v0.3.5
[INFO] [stderr]    Compiling futures v0.3.5
[INFO] [stderr]    Compiling websocket-lite v0.3.5
[INFO] [stderr]    Compiling sync v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 1m 14s
[INFO] running `Command { std: "docker" "inspect" "42d787b8824acf84d66d75d89c2aa251d220f6e223005d8a8b7d56c6287258aa", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "42d787b8824acf84d66d75d89c2aa251d220f6e223005d8a8b7d56c6287258aa", kill_on_drop: false }`
[INFO] [stdout] 42d787b8824acf84d66d75d89c2aa251d220f6e223005d8a8b7d56c6287258aa
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/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" "rustops/crates-build-env@sha256:c8ac004eab7d63a0ad09a2dde3d3353ba464f767bee4de425dc8f74c46a1905e" "/opt/rustwide/cargo-home/bin/cargo" "+1.49.0" "test" "--frozen", 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] 6f2e21ac5e0cb5b6d5dc9602f3382ca8ee37a72733e1c5e033c094b57bfaeb1a
[INFO] running `Command { std: "docker" "start" "-a" "6f2e21ac5e0cb5b6d5dc9602f3382ca8ee37a72733e1c5e033c094b57bfaeb1a", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.20s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/sync-aa00281ebcdb15a1
[INFO] [stdout] 
[INFO] [stdout] running 11 tests
[INFO] [stderr] Backtrace (most recent call first):
[INFO] [stdout] test tests::test_join_non_existing ... ok
[INFO] [stdout] test tests::test_tick_not_owner ... ok
[INFO] [stdout] test tests::test_forward_non_owner ... ok
[INFO] [stdout] test tests::test_tick_owner ... ok
[INFO] [stdout] test tests::test_play_not_owner ... ok
[INFO] [stdout] test tests::test_join ... ok
[INFO] [stdout] test tests::test_deserialize ... ok
[INFO] [stdout] test tests::test_play_owner ... ok
[INFO] [stdout] test tests::test_create ... ok
[INFO] [stdout] test tests::test_forward ... ok
[INFO] [stderr]   File "rust:library/core/src/option.rs", line 1260, in core::option::expect_failed
[INFO] [stderr]   File "rust:library/core/src/option.rs", line 349, in core::option::Option<T>::expect
[INFO] [stderr]   File "/opt/rustwide/workdir/src/integration_tests.rs", line 19, in sync::integration_tests::TestHandle::new
[INFO] [stderr]     let port = pick_unused_port().expect("No ports free");
[INFO] [stderr]   File "/opt/rustwide/workdir/src/integration_tests.rs", line 48, in sync::integration_tests::integration_tests
[INFO] [stdout] test integration_tests::integration_tests ... FAILED
[INFO] [stderr]     let test = TestHandle::new();
[INFO] [stderr]   File "/opt/rustwide/workdir/src/integration_tests.rs", line 47, in sync::integration_tests::integration_tests::{{closure}}
[INFO] [stderr]     fn integration_tests() {
[INFO] [stderr]   File "rust:library/core/src/ops/function.rs", line 227, in core::ops::function::FnOnce::call_once
[INFO] [stderr]   File "rust:library/core/src/ops/function.rs", line 227, in core::ops::function::FnOnce::call_once
[INFO] [stderr]   File "rust:library/test/src/lib.rs", line 517, in test::__rust_begin_short_backtrace
[INFO] [stderr]   File "rust:library/alloc/src/boxed.rs", line 1307, in <alloc::boxed::Box<F,A> as core::ops::function::FnOnce<Args>>::call_once
[INFO] [stderr]   File "rust:library/std/src/panic.rs", line 322, in <std::panic::AssertUnwindSafe<F> as core::ops::function::FnOnce<()>>::call_once
[INFO] [stderr]   File "rust:library/std/src/panicking.rs", line 381, in std::panicking::try::do_call
[INFO] [stderr]   File "rust:library/std/src/panicking.rs", line 345, in std::panicking::try
[INFO] [stderr]   File "rust:library/std/src/panic.rs", line 396, in std::panic::catch_unwind
[INFO] [stderr]   File "rust:library/test/src/lib.rs", line 544, in test::run_test_in_process
[INFO] [stderr] 
[INFO] [stderr] The application panicked (crashed).
[INFO] [stderr]   No ports free
[INFO] [stderr] in src/integration_tests.rs, line 19
[INFO] [stderr] thread: integration_tests::integration_tests
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout]     integration_tests::integration_tests
[INFO] [stdout] 
[INFO] [stdout] test result: FAILED. 10 passed; 1 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stderr] error: test failed, to rerun pass '--bin sync'
[INFO] running `Command { std: "docker" "inspect" "6f2e21ac5e0cb5b6d5dc9602f3382ca8ee37a72733e1c5e033c094b57bfaeb1a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6f2e21ac5e0cb5b6d5dc9602f3382ca8ee37a72733e1c5e033c094b57bfaeb1a", kill_on_drop: false }`
[INFO] [stdout] 6f2e21ac5e0cb5b6d5dc9602f3382ca8ee37a72733e1c5e033c094b57bfaeb1a