[INFO] cloning repository https://github.com/AIDXNZ/rust-crdt
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/AIDXNZ/rust-crdt" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FAIDXNZ%2Frust-crdt", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FAIDXNZ%2Frust-crdt'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] bc93c8001a63b6dee22358659e1a6fa61fb222fa
[INFO] testing AIDXNZ/rust-crdt against master#b70888601af92f6cdc0364abab3446e418b91d36 for pr-86479
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FAIDXNZ%2Frust-crdt" "/workspace/builds/worker-6/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-6/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/AIDXNZ/rust-crdt on toolchain b70888601af92f6cdc0364abab3446e418b91d36
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+b70888601af92f6cdc0364abab3446e418b91d36" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/AIDXNZ/rust-crdt
[INFO] finished tweaking git repo https://github.com/AIDXNZ/rust-crdt
[INFO] tweaked toml for git repo https://github.com/AIDXNZ/rust-crdt written to /workspace/builds/worker-6/source/Cargo.toml
[INFO] crate git repo https://github.com/AIDXNZ/rust-crdt already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+b70888601af92f6cdc0364abab3446e418b91d36" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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" "+b70888601af92f6cdc0364abab3446e418b91d36" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 3cb3d510f24e31dcf1be5b103a2f6fbafa8971583e3fadbb0a9877cdcb92eff9
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "3cb3d510f24e31dcf1be5b103a2f6fbafa8971583e3fadbb0a9877cdcb92eff9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "3cb3d510f24e31dcf1be5b103a2f6fbafa8971583e3fadbb0a9877cdcb92eff9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3cb3d510f24e31dcf1be5b103a2f6fbafa8971583e3fadbb0a9877cdcb92eff9", kill_on_drop: false }`
[INFO] [stdout] 3cb3d510f24e31dcf1be5b103a2f6fbafa8971583e3fadbb0a9877cdcb92eff9
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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=forbid" "-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" "+b70888601af92f6cdc0364abab3446e418b91d36" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] c0b66481432d2d1f9904bb10f1ccf822109a7caf1c783d881d07be032c865331
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "c0b66481432d2d1f9904bb10f1ccf822109a7caf1c783d881d07be032c865331", kill_on_drop: false }`
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[INFO] [stderr]    Compiling libp2p-dns v0.16.0
[INFO] [stderr]    Compiling libp2p-websocket v0.16.0
[INFO] [stderr]    Compiling libp2p-mplex v0.16.0
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[INFO] [stdout] error: internal compiler error: unexpected concrete region in borrowck: ReStatic
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/libp2p-0.16.2/src/lib.rs:245:1
[INFO] [stdout]     |
[INFO] [stdout] 245 | / pub fn build_tcp_ws_secio_mplex_yamux(keypair: identity::Keypair)
[INFO] [stdout] 246 | |     -> io::Result<impl Transport<Output = (PeerId, impl core::muxing::StreamMuxer<OutboundSubstream = impl Send, Substream = impl Send, E...
[INFO] [stdout] 247 | | {
[INFO] [stdout] 248 | |     Ok(CommonTransport::new()?
[INFO] [stdout] ...   |
[INFO] [stdout] 253 | |         .timeout(Duration::from_secs(20)))
[INFO] [stdout] 254 | | }
[INFO] [stdout]     | |_^
[INFO] [stdout]     |
[INFO] [stdout]     = note: delayed at compiler/rustc_mir/src/borrow_check/region_infer/opaque_types.rs:87:44
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] thread 'rustc' panicked at 'no errors encountered even though `delay_span_bug` issued', compiler/rustc_errors/src/lib.rs:1050:13
[INFO] [stdout] error: internal compiler error: unexpected concrete region in borrowck: ReStatic
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/libp2p-0.16.2/src/lib.rs:262:1
[INFO] [stdout]     |
[INFO] [stdout] 262 | / pub fn build_tcp_ws_pnet_secio_mplex_yamux(keypair: identity::Keypair, psk: PreSharedKey)
[INFO] [stdout] 263 | |     -> io::Result<impl Transport<Output = (PeerId, impl core::muxing::StreamMuxer<OutboundSubstream = impl Send, Substream = impl Send, E...
[INFO] [stdout] 264 | | {
[INFO] [stdout] 265 | |     Ok(CommonTransport::new()?
[INFO] [stdout] ...   |
[INFO] [stdout] 271 | |         .timeout(Duration::from_secs(20)))
[INFO] [stdout] 272 | | }
[INFO] [stdout]     | |_^
[INFO] [stdout]     |
[INFO] [stdout]     = note: delayed at compiler/rustc_mir/src/borrow_check/region_infer/opaque_types.rs:87:44
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] stack backtrace:
[INFO] [stderr]    0:     0x7fa36c915f50 - std::backtrace_rs::backtrace::libunwind::trace::h99dbb39dca18857d
[INFO] [stderr]                                at /rustc/b70888601af92f6cdc0364abab3446e418b91d36/library/std/src/../../backtrace/src/backtrace/libunwind.rs:90:5
[INFO] [stderr]    1:     0x7fa36c915f50 - std::backtrace_rs::backtrace::trace_unsynchronized::h832861927e9cfedf
[INFO] [stderr]                                at /rustc/b70888601af92f6cdc0364abab3446e418b91d36/library/std/src/../../backtrace/src/backtrace/mod.rs:66:5
[INFO] [stderr]    2:     0x7fa36c915f50 - std::sys_common::backtrace::_print_fmt::h3d18154c77dcf310
[INFO] [stderr]                                at /rustc/b70888601af92f6cdc0364abab3446e418b91d36/library/std/src/sys_common/backtrace.rs:67:5
[INFO] [stderr]    3:     0x7fa36c915f50 - <std::sys_common::backtrace::_print::DisplayBacktrace as core::fmt::Display>::fmt::he312f4ad5b9bb346
[INFO] [stderr]                                at /rustc/b70888601af92f6cdc0364abab3446e418b91d36/library/std/src/sys_common/backtrace.rs:46:22
[INFO] [stderr]    4:     0x7fa36c983bbc - core::fmt::write::h9a6d9c74526a6c1b
[INFO] [stderr]                                at /rustc/b70888601af92f6cdc0364abab3446e418b91d36/library/core/src/fmt/mod.rs:1115:17
[INFO] [stderr]    5:     0x7fa36c907835 - std::io::Write::write_fmt::h6aced00850e8186f
[INFO] [stderr]                                at /rustc/b70888601af92f6cdc0364abab3446e418b91d36/library/std/src/io/mod.rs:1665:15
[INFO] [stderr]    6:     0x7fa36c919c6b - std::sys_common::backtrace::_print::h65d996766de40da4
[INFO] [stderr]                                at /rustc/b70888601af92f6cdc0364abab3446e418b91d36/library/std/src/sys_common/backtrace.rs:49:5
[INFO] [stderr]    7:     0x7fa36c919c6b - std::sys_common::backtrace::print::h40df9727e635f303
[INFO] [stderr]                                at /rustc/b70888601af92f6cdc0364abab3446e418b91d36/library/std/src/sys_common/backtrace.rs:36:9
[INFO] [stderr]    8:     0x7fa36c919c6b - std::panicking::default_hook::{{closure}}::hd2da4327dea91a51
[INFO] [stderr]                                at /rustc/b70888601af92f6cdc0364abab3446e418b91d36/library/std/src/panicking.rs:208:50
[INFO] [stderr]    9:     0x7fa36c919741 - std::panicking::default_hook::h3d55120ad6ada158
[INFO] [stderr]                                at /rustc/b70888601af92f6cdc0364abab3446e418b91d36/library/std/src/panicking.rs:225:9
[INFO] [stderr]   10:     0x7fa36d0f6901 - rustc_driver::DEFAULT_HOOK::{{closure}}::{{closure}}::h98690b446fb8b04c
[INFO] [stderr]   11:     0x7fa35ec43da3 - <alloc::boxed::Box<F,A> as core::ops::function::Fn<Args>>::call::ha96c4c0de0abc0ba
[INFO] [stderr]                                at /rustc/b70888601af92f6cdc0364abab3446e418b91d36/library/alloc/src/boxed.rs:1586:9
[INFO] [stderr]   12:     0x7fa35ebefa4a - proc_macro::bridge::client::<impl proc_macro::bridge::Bridge>::enter::{{closure}}::{{closure}}::ha9b7338a8af81f39
[INFO] [stderr]                                at /rustc/b70888601af92f6cdc0364abab3446e418b91d36/library/proc_macro/src/bridge/client.rs:320:21
[INFO] [stderr]   13:     0x7fa36c91a499 - std::panicking::rust_panic_with_hook::hf85dd0bb545e3b55
[INFO] [stderr]                                at /rustc/b70888601af92f6cdc0364abab3446e418b91d36/library/std/src/panicking.rs:626:17
[INFO] [stderr]   14:     0x7fa36c919f57 - std::panicking::begin_panic_handler::{{closure}}::h736ae969434da9fa
[INFO] [stderr]                                at /rustc/b70888601af92f6cdc0364abab3446e418b91d36/library/std/src/panicking.rs:519:13
[INFO] [stderr]   15:     0x7fa36c91642c - std::sys_common::backtrace::__rust_end_short_backtrace::h6133bb80b1d6c3e0
[INFO] [stderr]                                at /rustc/b70888601af92f6cdc0364abab3446e418b91d36/library/std/src/sys_common/backtrace.rs:141:18
[INFO] [stderr]   16:     0x7fa36c919eb9 - rust_begin_unwind
[INFO] [stderr]                                at /rustc/b70888601af92f6cdc0364abab3446e418b91d36/library/std/src/panicking.rs:515:5
[INFO] [stderr]   17:     0x7fa36c8e2eab - std::panicking::begin_panic_fmt::hf70e90a601287d8b
[INFO] [stderr]                                at /rustc/b70888601af92f6cdc0364abab3446e418b91d36/library/std/src/panicking.rs:457:5
[INFO] [stderr]   18:     0x7fa36f547ab9 - rustc_errors::HandlerInner::flush_delayed::h400415fe09e32e42
[INFO] [stderr]   19:     0x7fa36f54651d - <rustc_errors::HandlerInner as core::ops::drop::Drop>::drop::h99b093f7064b7696
[INFO] [stderr]   20:     0x7fa36ebff196 - core::ptr::drop_in_place<rustc_session::parse::ParseSess>::hf782bb3707a77e2d
[INFO] [stderr]   21:     0x7fa36ec00ffe - <alloc::rc::Rc<T> as core::ops::drop::Drop>::drop::h22504b7a2bf4f3e1
[INFO] [stderr]   22:     0x7fa36ebd564d - core::ptr::drop_in_place<rustc_interface::interface::Compiler>::h04cee182ac6141b7
[INFO] [stderr]   23:     0x7fa36ebd4d93 - rustc_span::with_source_map::h35aa4a6792e2f0de
[INFO] [stderr]   24:     0x7fa36ebe646a - rustc_interface::interface::create_compiler_and_run::h600b31664ea7498c
[INFO] [stderr]   25:     0x7fa36ebd8d49 - scoped_tls::ScopedKey<T>::set::h95fded8ea1ce829a
[INFO] [stderr]   26:     0x7fa36ebd518a - std::sys_common::backtrace::__rust_begin_short_backtrace::hcb9f52ef891273be
[INFO] [stderr]   27:     0x7fa36ebd4475 - core::ops::function::FnOnce::call_once{{vtable.shim}}::h7d639d5804de8241
[INFO] [stderr]   28:     0x7fa36c926a27 - <alloc::boxed::Box<F,A> as core::ops::function::FnOnce<Args>>::call_once::h09f167e08fc945ff
[INFO] [stderr]                                at /rustc/b70888601af92f6cdc0364abab3446e418b91d36/library/alloc/src/boxed.rs:1572:9
[INFO] [stderr]   29:     0x7fa36c926a27 - <alloc::boxed::Box<F,A> as core::ops::function::FnOnce<Args>>::call_once::hf814fe85eeb118e0
[INFO] [stderr]                                at /rustc/b70888601af92f6cdc0364abab3446e418b91d36/library/alloc/src/boxed.rs:1572:9
[INFO] [stderr]   30:     0x7fa36c926a27 - std::sys::unix::thread::Thread::new::thread_start::hb71b17934c5f5e68
[INFO] [stderr]                                at /rustc/b70888601af92f6cdc0364abab3446e418b91d36/library/std/src/sys/unix/thread.rs:91:17
[INFO] [stderr]   31:     0x7fa36c842609 - start_thread
[INFO] [stderr]   32:     0x7fa36c756293 - clone
[INFO] [stderr]   33:                0x0 - <unknown>
[INFO] [stderr] 
[INFO] [stderr] error: internal compiler error: unexpected panic
[INFO] [stderr] 
[INFO] [stderr] note: the compiler unexpectedly panicked. this is a bug.
[INFO] [stderr] 
[INFO] [stderr] note: we would appreciate a bug report: https://github.com/rust-lang/rust/issues/new?labels=C-bug%2C+I-ICE%2C+T-compiler&template=ice.md
[INFO] [stderr] 
[INFO] [stderr] note: rustc 1.56.0-nightly (b70888601 2021-07-28) running on x86_64-unknown-linux-gnu
[INFO] [stderr] 
[INFO] [stderr] note: compiler flags: -C embed-bitcode=no -C debuginfo=2 --crate-type lib
[INFO] [stderr] 
[INFO] [stderr] note: some of the compiler flags provided by cargo are hidden
[INFO] [stderr] 
[INFO] [stderr] query stack during panic:
[INFO] [stderr] end of query stack
[INFO] [stderr] error: could not compile `libp2p`
[INFO] running `Command { std: "docker" "inspect" "c0b66481432d2d1f9904bb10f1ccf822109a7caf1c783d881d07be032c865331", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c0b66481432d2d1f9904bb10f1ccf822109a7caf1c783d881d07be032c865331", kill_on_drop: false }`
[INFO] [stdout] c0b66481432d2d1f9904bb10f1ccf822109a7caf1c783d881d07be032c865331