[INFO] fetching crate obnam 0.4.0...
[INFO] documenting obnam-0.4.0 against beta-2021-08-01 for beta-1.55-rustdoc-1
[INFO] extracting crate obnam 0.4.0 into /workspace/builds/worker-19/source
[INFO] validating manifest of crates.io crate obnam 0.4.0 on toolchain beta-2021-08-01
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-08-01" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate obnam 0.4.0
[INFO] finished tweaking crates.io crate obnam 0.4.0
[INFO] tweaked toml for crates.io crate obnam 0.4.0 written to /workspace/builds/worker-19/source/Cargo.toml
[INFO] crate crates.io crate obnam 0.4.0 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-08-01" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
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[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-19/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-19/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" "+beta-2021-08-01" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] cb2ba6093907c30f43ff7f1a6d4043bd0f8eb74853e6526b6984755cd878e7df
[INFO] running `Command { std: "docker" "start" "-a" "cb2ba6093907c30f43ff7f1a6d4043bd0f8eb74853e6526b6984755cd878e7df", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "cb2ba6093907c30f43ff7f1a6d4043bd0f8eb74853e6526b6984755cd878e7df", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "cb2ba6093907c30f43ff7f1a6d4043bd0f8eb74853e6526b6984755cd878e7df", kill_on_drop: false }`
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[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-19/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-19/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" "RUSTDOCFLAGS=--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" "+beta-2021-08-01" "doc" "--frozen" "--no-deps" "--document-private-items" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 1a6cf94964d8fa121d87d1313f821302dc6b1ad563032ce13bd8fd96ab25828a
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[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/warp-0.2.5/src/filters/sse.rs:457:5
[INFO] [stdout]     |
[INFO] [stdout] 457 | /     pub fn stream<S>(
[INFO] [stdout] 458 | |         self,
[INFO] [stdout] 459 | |         event_stream: S,
[INFO] [stdout] 460 | |     ) -> impl TryStream<
[INFO] [stdout] ...   |
[INFO] [stdout] 476 | |         }
[INFO] [stdout] 477 | |     }
[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] [stdout] error: internal compiler error: unexpected concrete region in borrowck: ReStatic
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/warp-0.2.5/src/filters/sse.rs:492:1
[INFO] [stdout]     |
[INFO] [stdout] 492 | / pub fn keep<S>(
[INFO] [stdout] 493 | |     event_stream: S,
[INFO] [stdout] 494 | |     keep_interval: impl Into<Option<Duration>>,
[INFO] [stdout] 495 | | ) -> impl TryStream<
[INFO] [stdout] ...   |
[INFO] [stdout] 514 | |     }
[INFO] [stdout] 515 | | }
[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]    0:     0x7f741c240b00 - std::backtrace_rs::backtrace::libunwind::trace::hff4d1766e93f64f1
[INFO] [stderr]                                at /rustc/53fd98ca776cb875bc9e5514f56b52eb74f9e7a9/library/std/src/../../backtrace/src/backtrace/libunwind.rs:90:5
[INFO] [stderr]    1:     0x7f741c240b00 - std::backtrace_rs::backtrace::trace_unsynchronized::h56bbc8eb78770bcb
[INFO] [stderr]                                at /rustc/53fd98ca776cb875bc9e5514f56b52eb74f9e7a9/library/std/src/../../backtrace/src/backtrace/mod.rs:66:5
[INFO] [stderr]    2:     0x7f741c240b00 - std::sys_common::backtrace::_print_fmt::h5c8e75464faca780
[INFO] [stderr]                                at /rustc/53fd98ca776cb875bc9e5514f56b52eb74f9e7a9/library/std/src/sys_common/backtrace.rs:67:5
[INFO] [stderr]    3:     0x7f741c240b00 - <std::sys_common::backtrace::_print::DisplayBacktrace as core::fmt::Display>::fmt::h48b88277def8b362
[INFO] [stderr]                                at /rustc/53fd98ca776cb875bc9e5514f56b52eb74f9e7a9/library/std/src/sys_common/backtrace.rs:46:22
[INFO] [stderr]    4:     0x7f741c2ae63c - core::fmt::write::h3381b3176fe2b3d3
[INFO] [stderr]                                at /rustc/53fd98ca776cb875bc9e5514f56b52eb74f9e7a9/library/core/src/fmt/mod.rs:1115:17
[INFO] [stderr]    5:     0x7f741c2323e5 - std::io::Write::write_fmt::hd42607e5d8e44db0
[INFO] [stderr]                                at /rustc/53fd98ca776cb875bc9e5514f56b52eb74f9e7a9/library/std/src/io/mod.rs:1665:15
[INFO] [stderr]    6:     0x7f741c24481b - std::sys_common::backtrace::_print::ha537687d6c17dd0d
[INFO] [stderr]                                at /rustc/53fd98ca776cb875bc9e5514f56b52eb74f9e7a9/library/std/src/sys_common/backtrace.rs:49:5
[INFO] [stderr]    7:     0x7f741c24481b - std::sys_common::backtrace::print::h61376ae57d131d72
[INFO] [stderr]                                at /rustc/53fd98ca776cb875bc9e5514f56b52eb74f9e7a9/library/std/src/sys_common/backtrace.rs:36:9
[INFO] [stderr]    8:     0x7f741c24481b - std::panicking::default_hook::{{closure}}::h0f7208c0b9644a54
[INFO] [stderr]                                at /rustc/53fd98ca776cb875bc9e5514f56b52eb74f9e7a9/library/std/src/panicking.rs:208:50
[INFO] [stderr]    9:     0x7f741c2442f1 - std::panicking::default_hook::hdac7fc06578c14ce
[INFO] [stderr]                                at /rustc/53fd98ca776cb875bc9e5514f56b52eb74f9e7a9/library/std/src/panicking.rs:225:9
[INFO] [stderr]   10:     0x7f741ca1e531 - rustc_driver::DEFAULT_HOOK::{{closure}}::{{closure}}::he0fb23ee363efe57
[INFO] [stderr]   11:     0x7f740ed95e33 - <alloc::boxed::Box<F,A> as core::ops::function::Fn<Args>>::call::h33f710202da4652a
[INFO] [stderr]                                at /rustc/53fd98ca776cb875bc9e5514f56b52eb74f9e7a9/library/alloc/src/boxed.rs:1586:9
[INFO] [stderr]   12:     0x7f740ed82d8a - proc_macro::bridge::client::<impl proc_macro::bridge::Bridge>::enter::{{closure}}::{{closure}}::h971a4698ff00cee1
[INFO] [stderr]                                at /rustc/53fd98ca776cb875bc9e5514f56b52eb74f9e7a9/library/proc_macro/src/bridge/client.rs:320:21
[INFO] [stderr]   13:     0x7f741c245049 - std::panicking::rust_panic_with_hook::h72b21c283da3d1ef
[INFO] [stderr]                                at /rustc/53fd98ca776cb875bc9e5514f56b52eb74f9e7a9/library/std/src/panicking.rs:626:17
[INFO] [stderr]   14:     0x7f741c244b07 - std::panicking::begin_panic_handler::{{closure}}::he5778f1729cff84a
[INFO] [stderr]                                at /rustc/53fd98ca776cb875bc9e5514f56b52eb74f9e7a9/library/std/src/panicking.rs:519:13
[INFO] [stderr]   15:     0x7f741c240fdc - std::sys_common::backtrace::__rust_end_short_backtrace::h2d11ca8b453b4b1d
[INFO] [stderr]                                at /rustc/53fd98ca776cb875bc9e5514f56b52eb74f9e7a9/library/std/src/sys_common/backtrace.rs:141:18
[INFO] [stderr]   16:     0x7f741c244a69 - rust_begin_unwind
[INFO] [stderr]                                at /rustc/53fd98ca776cb875bc9e5514f56b52eb74f9e7a9/library/std/src/panicking.rs:515:5
[INFO] [stderr]   17:     0x7f741c20da6b - std::panicking::begin_panic_fmt::h746518bde832d259
[INFO] [stderr]                                at /rustc/53fd98ca776cb875bc9e5514f56b52eb74f9e7a9/library/std/src/panicking.rs:457:5
[INFO] [stderr]   18:     0x7f741ee821a9 - rustc_errors::HandlerInner::flush_delayed::h68abfe220c70dca1
[INFO] [stderr]   19:     0x7f741ee80c0d - <rustc_errors::HandlerInner as core::ops::drop::Drop>::drop::hd769a4292ac9bfa2
[INFO] [stderr]   20:     0x7f741e5358d6 - core::ptr::drop_in_place<rustc_session::parse::ParseSess>::h3c16055fae7b64de
[INFO] [stderr]   21:     0x7f741e537a1e - <alloc::rc::Rc<T> as core::ops::drop::Drop>::drop::ha02c0db4efb40d0e
[INFO] [stderr]   22:     0x7f741e50ccfd - core::ptr::drop_in_place<rustc_interface::interface::Compiler>::h4b986457436dbab5
[INFO] [stderr]   23:     0x7f741e50c2e3 - rustc_span::with_source_map::h46995da78fbfb2ca
[INFO] [stderr]   24:     0x7f741e51dbca - rustc_interface::interface::create_compiler_and_run::hdd0d8e5ea2028f60
[INFO] [stderr]   25:     0x7f741e510c49 - scoped_tls::ScopedKey<T>::set::h4889fb0c1fafdd05
[INFO] [stderr]   26:     0x7f741e50d66a - std::sys_common::backtrace::__rust_begin_short_backtrace::h78e9a1a2353d1913
[INFO] [stderr]   27:     0x7f741e50cab5 - core::ops::function::FnOnce::call_once{{vtable.shim}}::hb838edfbc6ca2ea1
[INFO] [stderr]   28:     0x7f741c2515d7 - <alloc::boxed::Box<F,A> as core::ops::function::FnOnce<Args>>::call_once::h65c29e4642be2358
[INFO] [stderr]                                at /rustc/53fd98ca776cb875bc9e5514f56b52eb74f9e7a9/library/alloc/src/boxed.rs:1572:9
[INFO] [stderr]   29:     0x7f741c2515d7 - <alloc::boxed::Box<F,A> as core::ops::function::FnOnce<Args>>::call_once::hd0f8f7fbbd9fffbf
[INFO] [stderr]                                at /rustc/53fd98ca776cb875bc9e5514f56b52eb74f9e7a9/library/alloc/src/boxed.rs:1572:9
[INFO] [stderr]   30:     0x7f741c2515d7 - std::sys::unix::thread::Thread::new::thread_start::h2fd22fee3ca77b65
[INFO] [stderr]                                at /rustc/53fd98ca776cb875bc9e5514f56b52eb74f9e7a9/library/std/src/sys/unix/thread.rs:74:17
[INFO] [stderr]   31:     0x7f741c16d609 - start_thread
[INFO] [stderr]   32:     0x7f741c081293 - 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 1.55.0-beta.3 (53fd98ca7 2021-07-31) 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 `warp`
[INFO] running `Command { std: "docker" "inspect" "1a6cf94964d8fa121d87d1313f821302dc6b1ad563032ce13bd8fd96ab25828a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1a6cf94964d8fa121d87d1313f821302dc6b1ad563032ce13bd8fd96ab25828a", kill_on_drop: false }`
[INFO] [stdout] 1a6cf94964d8fa121d87d1313f821302dc6b1ad563032ce13bd8fd96ab25828a
