[INFO] fetching crate tower-limit 0.1.3...
[INFO] testing tower-limit-0.1.3 against 1.100.0-beta.1+cargoflags=--release for beta-release-1.100-2
[INFO] extracting crate tower-limit 0.1.3 into /workspace/builds/worker-7-tc2/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-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate tower-limit 0.1.3 on toolchain 1.100.0-beta.1
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.100.0-beta.1" "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" "+1.100.0-beta.1" "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" "+1.100.0-beta.1" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr] warning: `package.homepage` is redundant with `package.repository`
[INFO] [stderr]   --> Cargo.toml:36:12
[INFO] [stderr]    |
[INFO] [stderr] 36 | homepage = "https://github.com/tower-rs/tower"
[INFO] [stderr]    |            ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] ...
[INFO] [stderr] 40 | repository = "https://github.com/tower-rs/tower"
[INFO] [stderr]    |              -----------------------------------
[INFO] [stderr]    |
[INFO] [stderr]    = note: `cargo::redundant_homepage` is set to `warn` by default
[INFO] [stderr] help: consider removing `package.homepage`
[INFO] [stderr] warning: `tower-limit` (manifest) generated 1 warning
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/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] c6beed0965f65bbd58b9073e202088aeccdb0d5c110371a8965d9b9bc76c7c33
[INFO] running `Command { std: "docker" "start" "c6beed0965f65bbd58b9073e202088aeccdb0d5c110371a8965d9b9bc76c7c33", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "c6beed0965f65bbd58b9073e202088aeccdb0d5c110371a8965d9b9bc76c7c33", 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" "c6beed0965f65bbd58b9073e202088aeccdb0d5c110371a8965d9b9bc76c7c33" "/opt/rustwide/cargo-home/bin/cargo" "+1.100.0-beta.1" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "c6beed0965f65bbd58b9073e202088aeccdb0d5c110371a8965d9b9bc76c7c33", 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" "c6beed0965f65bbd58b9073e202088aeccdb0d5c110371a8965d9b9bc76c7c33" "/opt/rustwide/cargo-home/bin/cargo" "+1.100.0-beta.1" "build" "--frozen" "--message-format=json" "--release", kill_on_drop: false }`
[INFO] [stderr] warning: `package.homepage` is redundant with `package.repository`
[INFO] [stderr]   --> Cargo.toml:36:12
[INFO] [stderr]    |
[INFO] [stderr] 36 | homepage = "https://github.com/tower-rs/tower"
[INFO] [stderr]    |            ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] ...
[INFO] [stderr] 40 | repository = "https://github.com/tower-rs/tower"
[INFO] [stderr]    |              -----------------------------------
[INFO] [stderr]    |
[INFO] [stderr]    = note: `cargo::redundant_homepage` is set to `warn` by default
[INFO] [stderr] help: consider removing `package.homepage`
[INFO] [stderr] warning: `tower-limit` (manifest) generated 1 warning
[INFO] [stderr]    Compiling futures v0.1.31
[INFO] [stderr]    Compiling lazy_static v1.5.1
[INFO] [stderr]    Compiling cfg-if v0.1.10
[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 11.72s
[INFO] running `Command { std: "docker" "inspect" "c6beed0965f65bbd58b9073e202088aeccdb0d5c110371a8965d9b9bc76c7c33", 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" "c6beed0965f65bbd58b9073e202088aeccdb0d5c110371a8965d9b9bc76c7c33" "/opt/rustwide/cargo-home/bin/cargo" "+1.100.0-beta.1" "test" "--frozen" "--no-run" "--message-format=json" "--release", kill_on_drop: false }`
[INFO] [stderr] warning: `package.homepage` is redundant with `package.repository`
[INFO] [stderr]   --> Cargo.toml:36:12
[INFO] [stderr]    |
[INFO] [stderr] 36 | homepage = "https://github.com/tower-rs/tower"
[INFO] [stderr]    |            ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] ...
[INFO] [stderr] 40 | repository = "https://github.com/tower-rs/tower"
[INFO] [stderr]    |              -----------------------------------
[INFO] [stderr]    |
[INFO] [stderr]    = note: `cargo::redundant_homepage` is set to `warn` by default
[INFO] [stderr] help: consider removing `package.homepage`
[INFO] [stderr] warning: `tower-limit` (manifest) generated 1 warning
[INFO] [stderr]    Compiling maybe-uninit v2.0.0
[INFO] [stderr]    Compiling semver-parser v0.7.0
[INFO] [stderr]    Compiling byteorder v1.5.0
[INFO] [stderr]    Compiling memoffset v0.5.6
[INFO] [stderr]    Compiling iovec v0.1.4
[INFO] [stderr]    Compiling num_cpus v1.17.0
[INFO] [stderr]    Compiling net2 v0.2.39
[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 tokio-current-thread v0.1.7
[INFO] [stderr]    Compiling tower-test v0.1.0
[INFO] [stderr]    Compiling smallvec v0.6.14
[INFO] [stderr]    Compiling rustc_version v0.2.3
[INFO] [stderr]    Compiling bytes v0.4.12
[INFO] [stderr]    Compiling mio v0.6.23
[INFO] [stderr]    Compiling parking_lot_core v0.6.3
[INFO] [stderr]    Compiling parking_lot v0.9.0
[INFO] [stderr]    Compiling crossbeam-deque v0.7.4
[INFO] [stderr]    Compiling crossbeam-queue v0.2.3
[INFO] [stderr]    Compiling tokio-io v0.1.13
[INFO] [stderr]    Compiling tokio-threadpool v0.1.18
[INFO] [stderr]    Compiling tokio-mock-task v0.1.1
[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-tcp v0.1.4
[INFO] [stderr]    Compiling tokio-udp v0.1.6
[INFO] [stderr]    Compiling tokio-uds v0.2.7
[INFO] [stderr]    Compiling tokio-fs v0.1.7
[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 18.18s
[INFO] running `Command { std: "docker" "inspect" "c6beed0965f65bbd58b9073e202088aeccdb0d5c110371a8965d9b9bc76c7c33", 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" "c6beed0965f65bbd58b9073e202088aeccdb0d5c110371a8965d9b9bc76c7c33" "/opt/rustwide/cargo-home/bin/cargo" "+1.100.0-beta.1" "test" "--frozen" "--release", kill_on_drop: false }`
[INFO] [stderr] warning: `package.homepage` is redundant with `package.repository`
[INFO] [stderr]   --> Cargo.toml:36:12
[INFO] [stderr]    |
[INFO] [stderr] 36 | homepage = "https://github.com/tower-rs/tower"
[INFO] [stderr]    |            ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] ...
[INFO] [stderr] 40 | repository = "https://github.com/tower-rs/tower"
[INFO] [stderr]    |              -----------------------------------
[INFO] [stderr]    |
[INFO] [stderr]    = note: `cargo::redundant_homepage` is set to `warn` by default
[INFO] [stderr] help: consider removing `package.homepage`
[INFO] [stderr] warning: `tower-limit` (manifest) generated 1 warning
[INFO] [stderr]     Finished `release` profile [optimized] target(s) in 0.11s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/release/build/tower-limit/6aab9ff4a4d1287d/out/tower_limit-6aab9ff4a4d1287d)
[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] [stderr]      Running tests/concurrency.rs (/opt/rustwide/target/release/build/tower-limit/15f7882b8311d8c8/out/concurrency-15f7882b8311d8c8)
[INFO] [stdout] 
[INFO] [stdout] running 8 tests
[INFO] [stderr] 
[INFO] [stderr] thread 'response_future_drop_releases_capacity' (862) panicked at /rustc/e3feeb59cd1bdd011a2bfcc0747b55125d9b8527/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:     0x6030bbb47041 - <<std[617be2ca0a6fd877]::sys::backtrace::BacktraceLock>::print::DisplayBacktrace as core[a373ad73a504971]::fmt::Display>::fmt
[INFO] [stderr]    1:     0x6030bbb5afea - core[a373ad73a504971]::fmt::write
[INFO] [stderr]    2:     0x6030bbb4c11c - <std[617be2ca0a6fd877]::sys::stdio::unix::Stderr as core[a373ad73a504971]::io::write::Write>::write_fmt
[INFO] [stderr]    3:     0x6030bbb233a6 - std[617be2ca0a6fd877]::panicking::default_hook::{closure#0}
[INFO] [stderr]    4:     0x6030bbb3f6a1 - std[617be2ca0a6fd877]::panicking::default_hook
[INFO] [stderr]    5:     0x6030bbad97d0 - test[aada8e7e76ba119b]::test_main_inner::{closure#0}
[INFO] [stderr]    6:     0x6030bbb3f892 - std[617be2ca0a6fd877]::panicking::panic_with_hook
[INFO] [stderr]    7:     0x6030bbb23484 - std[617be2ca0a6fd877]::panicking::panic_handler::{closure#0}
[INFO] [stderr]    8:     0x6030bbb1c139 - std[617be2ca0a6fd877]::sys::backtrace::__rust_end_short_backtrace::<std[617be2ca0a6fd877]::panicking::panic_handler::{closure#0}, !>
[INFO] [stderr]    9:     0x6030bbb2405d - __rustc[ea4f61d10b84890b]::rust_begin_unwind
[INFO] [stderr]   10:     0x6030bbb5b59d - core[a373ad73a504971]::panicking::panic_nounwind_fmt
[INFO] [stderr]   11:     0x6030bbb5b51b - core[a373ad73a504971]::panicking::panic_nounwind
[INFO] [stderr]   12:     0x6030bbac0b2c - <tower_test[e2cd3f114e81d52a]::mock::Mock<&str, &str> as tower_service[b2730ed11e372d35]::Service<&str>>::call
[INFO] [stderr]   13:     0x6030bbacc7e0 - <tower_limit[22dcf675099c1401]::concurrency::service::ConcurrencyLimit<tower_test[e2cd3f114e81d52a]::mock::Mock<&str, &str>> as tower_service[b2730ed11e372d35]::Service<&str>>::call
[INFO] [stderr]   14:     0x6030bbac6810 - <concurrency[8ff965a5548cb6f]::response_future_drop_releases_capacity::{closure#0} as core[a373ad73a504971]::ops::function::FnOnce<()>>::call_once
[INFO] [stderr]   15:     0x6030bbaccc1b - test[aada8e7e76ba119b]::__rust_begin_short_backtrace::<core[a373ad73a504971]::result::Result<(), alloc[2e1b2a31b91974c5]::string::String>, fn() -> core[a373ad73a504971]::result::Result<(), alloc[2e1b2a31b91974c5]::string::String>>
[INFO] [stderr]   16:     0x6030bbad9df5 - test[aada8e7e76ba119b]::run_test::{closure#0}
[INFO] [stderr]   17:     0x6030bbad36e4 - std[617be2ca0a6fd877]::sys::backtrace::__rust_begin_short_backtrace::<test[aada8e7e76ba119b]::run_test::{closure#1}, ()>
[INFO] [stderr]   18:     0x6030bbadce82 - <std[617be2ca0a6fd877]::thread::lifecycle::spawn_unchecked<test[aada8e7e76ba119b]::run_test::{closure#1}, ()>::{closure#1} as core[a373ad73a504971]::ops::function::FnOnce<()>>::call_once::{shim:vtable#0}
[INFO] [stderr]   19:     0x6030bbb4689f - <std[617be2ca0a6fd877]::sys::thread::unix::Thread>::new::thread_start
[INFO] [stderr]   20:     0x72a7b728fdfa - <unknown>
[INFO] [stderr]   21:     0x72a7b73233d4 - 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/build/tower-limit/15f7882b8311d8c8/out/concurrency-15f7882b8311d8c8` (signal: 6, SIGABRT: process abort signal)
[INFO] running `Command { std: "docker" "inspect" "c6beed0965f65bbd58b9073e202088aeccdb0d5c110371a8965d9b9bc76c7c33", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c6beed0965f65bbd58b9073e202088aeccdb0d5c110371a8965d9b9bc76c7c33", kill_on_drop: false }`
[INFO] [stdout] c6beed0965f65bbd58b9073e202088aeccdb0d5c110371a8965d9b9bc76c7c33
