[INFO] fetching crate tower-limit 0.1.3...
[INFO] testing tower-limit-0.1.3 against 1.99.0-beta.8+cargoflags=--release for beta-release-1.100-2
[INFO] extracting crate tower-limit 0.1.3 into /workspace/builds/worker-7-tc1/source
[INFO] started tweaking crates.io crate tower-limit 0.1.3
[INFO] finished tweaking crates.io crate tower-limit 0.1.3
[INFO] tweaked toml for crates.io crate tower-limit 0.1.3 written to /workspace/builds/worker-7-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate tower-limit 0.1.3 on toolchain 1.99.0-beta.8
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.99.0-beta.8" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.99.0-beta.8" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 69 packages to highest compatible versions
[INFO] [stderr]       Adding futures v0.1.31 (available: v0.3.34)
[INFO] [stderr]       Adding tokio v0.1.22 (available: v1.53.3)
[INFO] [stderr]       Adding tower-layer v0.1.0 (available: v0.3.3)
[INFO] [stderr]       Adding tower-service v0.2.0 (available: v0.3.3)
[INFO] [stderr]       Adding tower-test v0.1.0 (available: v0.4.0)
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.99.0-beta.8" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded tower-service v0.2.0
[INFO] [stderr]   Downloaded tokio-mock-task v0.1.1
[INFO] [stderr]   Downloaded tower-test v0.1.0
[INFO] [stderr]   Downloaded tower-layer v0.1.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,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" "-m" "1610612736" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:77db811e55d90add9212f6832c23229e3de5f1c1f9905e8cb07319ea15df73ac" "sleep" "infinity", kill_on_drop: false }`
[INFO] [stdout] 5097b9897544ed7e982a1bfcbd51fe6b30157773226692b106a32401302ff896
[INFO] running `Command { std: "docker" "start" "5097b9897544ed7e982a1bfcbd51fe6b30157773226692b106a32401302ff896", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "5097b9897544ed7e982a1bfcbd51fe6b30157773226692b106a32401302ff896", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-w" "/opt/rustwide/workdir" "--user" "0:0" "5097b9897544ed7e982a1bfcbd51fe6b30157773226692b106a32401302ff896" "/opt/rustwide/cargo-home/bin/cargo" "+1.99.0-beta.8" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "5097b9897544ed7e982a1bfcbd51fe6b30157773226692b106a32401302ff896", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-w" "/opt/rustwide/workdir" "--user" "0:0" "5097b9897544ed7e982a1bfcbd51fe6b30157773226692b106a32401302ff896" "/opt/rustwide/cargo-home/bin/cargo" "+1.99.0-beta.8" "build" "--frozen" "--message-format=json" "--release", kill_on_drop: false }`
[INFO] [stderr]    Compiling futures v0.1.31
[INFO] [stderr]    Compiling cfg-if v0.1.10
[INFO] [stderr]    Compiling lazy_static v1.5.1
[INFO] [stderr]    Compiling crossbeam-utils v0.7.2
[INFO] [stderr]    Compiling syn v2.0.119
[INFO] [stderr]    Compiling tower-service v0.2.0
[INFO] [stderr]    Compiling tokio-executor v0.1.10
[INFO] [stderr]    Compiling tokio-sync v0.1.8
[INFO] [stderr]    Compiling tower-layer v0.1.0
[INFO] [stderr]    Compiling tokio-timer v0.2.13
[INFO] [stderr]    Compiling tracing-attributes v0.1.31
[INFO] [stderr]    Compiling tracing v0.1.44
[INFO] [stderr]    Compiling tower-limit v0.1.3 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `release` profile [optimized] target(s) in 12.09s
[INFO] running `Command { std: "docker" "inspect" "5097b9897544ed7e982a1bfcbd51fe6b30157773226692b106a32401302ff896", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-w" "/opt/rustwide/workdir" "--user" "0:0" "5097b9897544ed7e982a1bfcbd51fe6b30157773226692b106a32401302ff896" "/opt/rustwide/cargo-home/bin/cargo" "+1.99.0-beta.8" "test" "--frozen" "--no-run" "--message-format=json" "--release", kill_on_drop: false }`
[INFO] [stderr]    Compiling maybe-uninit v2.0.0
[INFO] [stderr]    Compiling semver-parser v0.7.0
[INFO] [stderr]    Compiling iovec v0.1.4
[INFO] [stderr]    Compiling byteorder v1.5.0
[INFO] [stderr]    Compiling num_cpus v1.17.0
[INFO] [stderr]    Compiling net2 v0.2.39
[INFO] [stderr]    Compiling memoffset v0.5.6
[INFO] [stderr]    Compiling lock_api v0.3.4
[INFO] [stderr]    Compiling crossbeam-epoch v0.8.2
[INFO] [stderr]    Compiling semver v0.9.0
[INFO] [stderr]    Compiling smallvec v0.6.14
[INFO] [stderr]    Compiling crossbeam-queue v0.2.3
[INFO] [stderr]    Compiling tokio-current-thread v0.1.7
[INFO] [stderr]    Compiling rustc_version v0.2.3
[INFO] [stderr]    Compiling bytes v0.4.12
[INFO] [stderr]    Compiling parking_lot_core v0.6.3
[INFO] [stderr]    Compiling parking_lot v0.9.0
[INFO] [stderr]    Compiling mio v0.6.23
[INFO] [stderr]    Compiling crossbeam-deque v0.7.4
[INFO] [stderr]    Compiling tower-test v0.1.0
[INFO] [stderr]    Compiling tokio-threadpool v0.1.18
[INFO] [stderr]    Compiling tokio-mock-task v0.1.1
[INFO] [stderr]    Compiling tokio-io v0.1.13
[INFO] [stderr]    Compiling mio-uds v0.6.8
[INFO] [stderr]    Compiling tokio-reactor v0.1.12
[INFO] [stderr]    Compiling tokio-codec v0.1.2
[INFO] [stderr]    Compiling tokio-fs v0.1.7
[INFO] [stderr]    Compiling tokio-udp v0.1.6
[INFO] [stderr]    Compiling tokio-tcp v0.1.4
[INFO] [stderr]    Compiling tokio-uds v0.2.7
[INFO] [stderr]    Compiling tokio v0.1.22
[INFO] [stderr]    Compiling tower-limit v0.1.3 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `release` profile [optimized] target(s) in 20.56s
[INFO] running `Command { std: "docker" "inspect" "5097b9897544ed7e982a1bfcbd51fe6b30157773226692b106a32401302ff896", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-w" "/opt/rustwide/workdir" "--user" "0:0" "5097b9897544ed7e982a1bfcbd51fe6b30157773226692b106a32401302ff896" "/opt/rustwide/cargo-home/bin/cargo" "+1.99.0-beta.8" "test" "--frozen" "--release", kill_on_drop: false }`
[INFO] [stderr]     Finished `release` profile [optimized] target(s) in 0.10s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/release/deps/tower_limit-6aab9ff4a4d1287d)
[INFO] [stderr]      Running tests/concurrency.rs (/opt/rustwide/target/release/deps/concurrency-15f7882b8311d8c8)
[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] [stdout] 
[INFO] [stdout] running 8 tests
[INFO] [stderr] 
[INFO] [stderr] thread 'basic_service_limit_functionality_without_poll_ready' (854) panicked at /rustc/dfb0accb7f508ae8be965d8629557221c889dd98/library/core/src/panicking.rs:225:5:
[INFO] [stderr] attempted to leave type `futures::task_impl::Task` uninitialized, which is invalid
[INFO] [stderr] stack backtrace:
[INFO] [stderr]    0:     0x5c65928546f1 - <<std[70759c8f55707aa4]::sys::backtrace::BacktraceLock>::print::DisplayBacktrace as core[df12db4294e9bfd3]::fmt::Display>::fmt
[INFO] [stderr]    1:     0x5c659286897a - core[df12db4294e9bfd3]::fmt::write
[INFO] [stderr]    2:     0x5c6592859b4c - <std[70759c8f55707aa4]::sys::stdio::unix::Stderr as core[df12db4294e9bfd3]::io::write::Write>::write_fmt
[INFO] [stderr]    3:     0x5c6592830be6 - std[70759c8f55707aa4]::panicking::default_hook::{closure#0}
[INFO] [stderr]    4:     0x5c659284ce21 - std[70759c8f55707aa4]::panicking::default_hook
[INFO] [stderr]    5:     0x5c65927e6d30 - test[9d35eded1c95d3be]::test_main_inner::<test[9d35eded1c95d3be]::test_main_static::{closure#0}>::{closure#0}
[INFO] [stderr]    6:     0x5c659284d012 - std[70759c8f55707aa4]::panicking::panic_with_hook
[INFO] [stderr]    7:     0x5c6592830cc4 - std[70759c8f55707aa4]::panicking::panic_handler::{closure#0}
[INFO] [stderr]    8:     0x5c65928299e9 - std[70759c8f55707aa4]::sys::backtrace::__rust_end_short_backtrace::<std[70759c8f55707aa4]::panicking::panic_handler::{closure#0}, !>
[INFO] [stderr]    9:     0x5c659283188d - __rustc[8fa7c3cbc660c2b3]::rust_begin_unwind
[INFO] [stderr]   10:     0x5c6592868f2d - core[df12db4294e9bfd3]::panicking::panic_nounwind_fmt
[INFO] [stderr]   11:     0x5c6592868eab - core[df12db4294e9bfd3]::panicking::panic_nounwind
[INFO] [stderr]   12:     0x5c65927cdcbc - <tower_test[d199fac7de7ef4b0]::mock::Mock<&str, &str> as tower_service[3c73586c539018a8]::Service<&str>>::call
[INFO] [stderr]   13:     0x5c65927d71a0 - <tower_limit[adfaae2bada72d3]::concurrency::service::ConcurrencyLimit<tower_test[d199fac7de7ef4b0]::mock::Mock<&str, &str>> as tower_service[3c73586c539018a8]::Service<&str>>::call
[INFO] [stderr]   14:     0x5c65927d9460 - <concurrency[e4f68ccd3788fbbf]::basic_service_limit_functionality_without_poll_ready::{closure#0} as core[df12db4294e9bfd3]::ops::function::FnOnce<()>>::call_once
[INFO] [stderr]   15:     0x5c65927da01b - test[9d35eded1c95d3be]::__rust_begin_short_backtrace::<core[df12db4294e9bfd3]::result::Result<(), alloc[2182bb758b4b3781]::string::String>, fn() -> core[df12db4294e9bfd3]::result::Result<(), alloc[2182bb758b4b3781]::string::String>>
[INFO] [stderr]   16:     0x5c65927e7685 - test[9d35eded1c95d3be]::run_test::{closure#0}
[INFO] [stderr]   17:     0x5c65927e0f44 - std[70759c8f55707aa4]::sys::backtrace::__rust_begin_short_backtrace::<test[9d35eded1c95d3be]::run_test::{closure#1}, ()>
[INFO] [stderr]   18:     0x5c65927ea7e2 - <std[70759c8f55707aa4]::thread::lifecycle::spawn_unchecked<test[9d35eded1c95d3be]::run_test::{closure#1}, ()>::{closure#1} as core[df12db4294e9bfd3]::ops::function::FnOnce<()>>::call_once::{shim:vtable#0}
[INFO] [stderr]   19:     0x5c6592853fc9 - <std[70759c8f55707aa4]::sys::thread::unix::Thread>::new::thread_start
[INFO] [stderr]   20:     0x712202774dfa - <unknown>
[INFO] [stderr]   21:     0x7122028083d4 - clone
[INFO] [stderr]   22:                0x0 - <unknown>
[INFO] [stderr] thread caused non-unwinding panic. aborting.
[INFO] [stderr] error: test failed, to rerun pass `--test concurrency`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `/opt/rustwide/target/release/deps/concurrency-15f7882b8311d8c8` (signal: 6, SIGABRT: process abort signal)
[INFO] running `Command { std: "docker" "inspect" "5097b9897544ed7e982a1bfcbd51fe6b30157773226692b106a32401302ff896", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5097b9897544ed7e982a1bfcbd51fe6b30157773226692b106a32401302ff896", kill_on_drop: false }`
[INFO] [stdout] 5097b9897544ed7e982a1bfcbd51fe6b30157773226692b106a32401302ff896
