[INFO] fetching crate fbnc 0.2.10...
[INFO] testing fbnc-0.2.10 against try#c2e32f1c9652b13ed99608599c1e855462f421f3 for pr-146098-7
[INFO] extracting crate fbnc 0.2.10 into /workspace/builds/worker-7-tc2/source
[INFO] started tweaking crates.io crate fbnc 0.2.10
[INFO] finished tweaking crates.io crate fbnc 0.2.10
[INFO] tweaked toml for crates.io crate fbnc 0.2.10 written to /workspace/builds/worker-7-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate fbnc 0.2.10 on toolchain c2e32f1c9652b13ed99608599c1e855462f421f3
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c2e32f1c9652b13ed99608599c1e855462f421f3" "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" "+c2e32f1c9652b13ed99608599c1e855462f421f3" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 100 packages to latest compatible versions
[INFO] [stderr]       Adding bincode v1.3.3 (available: v2.0.1)
[INFO] [stderr]       Adding criterion v0.3.6 (available: v0.7.0)
[INFO] [stderr]       Adding rand v0.8.5 (available: v0.9.2)
[INFO] [stderr]       Adding rocksdb v0.17.0 (available: v0.24.0)
[INFO] [stderr]       Adding ruc v1.0.8 (available: v8.1.4)
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c2e32f1c9652b13ed99608599c1e855462f421f3" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+c2e32f1c9652b13ed99608599c1e855462f421f3" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 3ab2fc4d4912b65518b5f583445086f750dcd23985294c547cedb6a57ff7ccd3
[INFO] running `Command { std: "docker" "start" "-a" "3ab2fc4d4912b65518b5f583445086f750dcd23985294c547cedb6a57ff7ccd3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "3ab2fc4d4912b65518b5f583445086f750dcd23985294c547cedb6a57ff7ccd3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3ab2fc4d4912b65518b5f583445086f750dcd23985294c547cedb6a57ff7ccd3", kill_on_drop: false }`
[INFO] [stdout] 3ab2fc4d4912b65518b5f583445086f750dcd23985294c547cedb6a57ff7ccd3
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/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" "RUSTDOCFLAGS=--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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+c2e32f1c9652b13ed99608599c1e855462f421f3" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 4904608cd07e3e8a1d15ec2b206015003b873f0f6d0e50f362930095d2387242
[INFO] running `Command { std: "docker" "start" "-a" "4904608cd07e3e8a1d15ec2b206015003b873f0f6d0e50f362930095d2387242", kill_on_drop: false }`
[INFO] [stderr]    Compiling quote v1.0.42
[INFO] [stderr]    Compiling glob v0.3.3
[INFO] [stderr]    Compiling regex-syntax v0.8.8
[INFO] [stderr]    Compiling libloading v0.8.9
[INFO] [stderr]    Compiling bindgen v0.59.2
[INFO] [stderr]    Compiling jobserver v0.1.34
[INFO] [stderr]    Compiling bitflags v1.3.2
[INFO] [stderr]    Compiling nom v7.1.3
[INFO] [stderr]    Compiling getrandom v0.2.16
[INFO] [stderr]    Compiling ppv-lite86 v0.2.21
[INFO] [stderr]    Compiling time v0.3.44
[INFO] [stderr]    Compiling num_cpus v1.17.0
[INFO] [stderr]    Compiling rand_core v0.6.4
[INFO] [stderr]    Compiling cc v1.2.45
[INFO] [stderr]    Compiling syn v2.0.110
[INFO] [stderr]    Compiling clang-sys v1.8.1
[INFO] [stderr]    Compiling rand_chacha v0.3.1
[INFO] [stderr]    Compiling rand v0.8.5
[INFO] [stderr]    Compiling ruc v1.0.8
[INFO] [stderr]    Compiling cexpr v0.6.0
[INFO] [stderr]    Compiling regex-automata v0.4.13
[INFO] [stderr]    Compiling serde_derive v1.0.228
[INFO] [stderr]    Compiling regex v1.12.2
[INFO] [stderr]    Compiling serde v1.0.228
[INFO] [stderr]    Compiling bincode v1.3.3
[INFO] [stderr]    Compiling librocksdb-sys v6.20.3
[INFO] [stderr] error: failed to run custom build command for `librocksdb-sys v6.20.3`
[INFO] [stderr] note: To improve backtraces for build dependencies, set the CARGO_PROFILE_DEV_BUILD_OVERRIDE_DEBUG=true environment variable to enable debug information generation.
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `/opt/rustwide/target/debug/build/librocksdb-sys-970637c9ede59d80/build-script-build` (exit status: 101)
[INFO] [stderr]   --- stderr
[INFO] [stderr] 
[INFO] [stderr]   thread 'main' (486) panicked at /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/bindgen-0.59.2/src/ir/context.rs:878:9:
[INFO] [stderr]   "enum_(unnamed_at_rocksdb/include/rocksdb/c_h_854_1)" is not a valid Ident
[INFO] [stderr]   stack backtrace:
[INFO] [stderr]      0:     0x5d3b7872e7b2 - std::backtrace_rs::backtrace::libunwind::trace::h9ea1e07ac77a25d7
[INFO] [stderr]                                  at /rustc/c2e32f1c9652b13ed99608599c1e855462f421f3/library/std/src/../../backtrace/src/backtrace/libunwind.rs:117:9
[INFO] [stderr]      1:     0x5d3b7872e7b2 - std::backtrace_rs::backtrace::trace_unsynchronized::h72b75eb83b53d15a
[INFO] [stderr]                                  at /rustc/c2e32f1c9652b13ed99608599c1e855462f421f3/library/std/src/../../backtrace/src/backtrace/mod.rs:66:14
[INFO] [stderr]      2:     0x5d3b7872e7b2 - std::sys::backtrace::_print_fmt::h255777b7ec902439
[INFO] [stderr]                                  at /rustc/c2e32f1c9652b13ed99608599c1e855462f421f3/library/std/src/sys/backtrace.rs:66:9
[INFO] [stderr]      3:     0x5d3b7872e7b2 - <std::sys::backtrace::BacktraceLock::print::DisplayBacktrace as core::fmt::Display>::fmt::h8a1ac49fcd7ee8ce
[INFO] [stderr]                                  at /rustc/c2e32f1c9652b13ed99608599c1e855462f421f3/library/std/src/sys/backtrace.rs:39:26
[INFO] [stderr]      4:     0x5d3b7874047f - core::fmt::rt::Argument::fmt::h635cbf3c6754cc90
[INFO] [stderr]                                  at /rustc/c2e32f1c9652b13ed99608599c1e855462f421f3/library/core/src/fmt/rt.rs:173:76
[INFO] [stderr]      5:     0x5d3b7874047f - core::fmt::write::hbdcc0ec4f1bab1db
[INFO] [stderr]                                  at /rustc/c2e32f1c9652b13ed99608599c1e855462f421f3/library/core/src/fmt/mod.rs:1469:25
[INFO] [stderr]      6:     0x5d3b786f8723 - std::io::default_write_fmt::hb29d13affe7e9cd0
[INFO] [stderr]                                  at /rustc/c2e32f1c9652b13ed99608599c1e855462f421f3/library/std/src/io/mod.rs:639:11
[INFO] [stderr]      7:     0x5d3b786f8723 - std::io::Write::write_fmt::hec441b8c6eca32b9
[INFO] [stderr]                                  at /rustc/c2e32f1c9652b13ed99608599c1e855462f421f3/library/std/src/io/mod.rs:1954:13
[INFO] [stderr]      8:     0x5d3b787058c2 - std::sys::backtrace::BacktraceLock::print::h052febbd86f7bf07
[INFO] [stderr]                                  at /rustc/c2e32f1c9652b13ed99608599c1e855462f421f3/library/std/src/sys/backtrace.rs:42:9
[INFO] [stderr]      9:     0x5d3b7870b1cf - std::panicking::default_hook::{{closure}}::h66aeee20dd470abb
[INFO] [stderr]                                  at /rustc/c2e32f1c9652b13ed99608599c1e855462f421f3/library/std/src/panicking.rs:301:27
[INFO] [stderr]     10:     0x5d3b7870b029 - std::panicking::default_hook::h9d66b9642014ce48
[INFO] [stderr]                                  at /rustc/c2e32f1c9652b13ed99608599c1e855462f421f3/library/std/src/panicking.rs:328:9
[INFO] [stderr]     11:     0x5d3b7870b855 - std::panicking::panic_with_hook::h6d5921a1a1fa5a8e
[INFO] [stderr]                                  at /rustc/c2e32f1c9652b13ed99608599c1e855462f421f3/library/std/src/panicking.rs:834:13
[INFO] [stderr]     12:     0x5d3b7870b63a - std::panicking::panic_handler::{{closure}}::hafeef6f707d43542
[INFO] [stderr]                                  at /rustc/c2e32f1c9652b13ed99608599c1e855462f421f3/library/std/src/panicking.rs:707:13
[INFO] [stderr]     13:     0x5d3b787059f9 - std::sys::backtrace::__rust_end_short_backtrace::h08cbc3319a3d0120
[INFO] [stderr]                                  at /rustc/c2e32f1c9652b13ed99608599c1e855462f421f3/library/std/src/sys/backtrace.rs:174:18
[INFO] [stderr]     14:     0x5d3b786ec57d - __rustc[ce5c411ff86ab1b2]::rust_begin_unwind
[INFO] [stderr]                                  at /rustc/c2e32f1c9652b13ed99608599c1e855462f421f3/library/std/src/panicking.rs:698:5
[INFO] [stderr]     15:     0x5d3b7874a6a0 - core::panicking::panic_fmt::h774fb860369a0f7b
[INFO] [stderr]                                  at /rustc/c2e32f1c9652b13ed99608599c1e855462f421f3/library/core/src/panicking.rs:80:14
[INFO] [stderr]     16:     0x5d3b786c830f - proc_macro2::fallback::validate_ident::hab0d1f29d8bdb49c
[INFO] [stderr]     17:     0x5d3b786c8a38 - proc_macro2::fallback::Ident::new_checked::h50c3f9a6a2303236
[INFO] [stderr]     18:     0x5d3b786d4cf2 - proc_macro2::imp::Ident::new_checked::hbe98766c1e75f658
[INFO] [stderr]     19:     0x5d3b786d56e7 - proc_macro2::Ident::new::h4e515be1fbfce8d7
[INFO] [stderr]     20:     0x5d3b784378f6 - bindgen::ir::context::BindgenContext::rust_ident_raw::ha7f00720de3ed587
[INFO] [stderr]     21:     0x5d3b784354b0 - bindgen::ir::context::BindgenContext::rust_ident::h3a52c26737d6b079
[INFO] [stderr]     22:     0x5d3b784831ae - <bindgen::ir::enum_ty::Enum as bindgen::codegen::CodeGenerator>::codegen::he1bb8483667a2142
[INFO] [stderr]     23:     0x5d3b7847b966 - <bindgen::ir::ty::Type as bindgen::codegen::CodeGenerator>::codegen::h3553df1f591c5579
[INFO] [stderr]     24:     0x5d3b78462b1d - <bindgen::ir::item::Item as bindgen::codegen::CodeGenerator>::codegen::h004ef7313b1f380e
[INFO] [stderr]     25:     0x5d3b783c3a15 - <bindgen::ir::module::Module as bindgen::codegen::CodeGenerator>::codegen::{{closure}}::he37262e406b8ca17
[INFO] [stderr]     26:     0x5d3b784b32f5 - <bindgen::ir::module::Module as bindgen::codegen::CodeGenerator>::codegen::h2b8dd3dceb712642
[INFO] [stderr]     27:     0x5d3b78462b02 - <bindgen::ir::item::Item as bindgen::codegen::CodeGenerator>::codegen::h004ef7313b1f380e
[INFO] [stderr]     28:     0x5d3b783cfbd8 - bindgen::codegen::codegen::{{closure}}::hb59c6a427a2b4e3d
[INFO] [stderr]     29:     0x5d3b78441ff8 - bindgen::ir::context::BindgenContext::gen::h63ef400da4daf4f0
[INFO] [stderr]     30:     0x5d3b783cf4ed - bindgen::codegen::codegen::h7aa21ffea8eed94c
[INFO] [stderr]     31:     0x5d3b784c46e5 - bindgen::Bindings::generate::h12b0320ea0b812c3
[INFO] [stderr]     32:     0x5d3b784c168f - bindgen::Builder::generate::hf249171c8a4a5f1d
[INFO] [stderr]     33:     0x5d3b782ef144 - build_script_build::bindgen_rocksdb::hbd9977e6b59a4930
[INFO] [stderr]     34:     0x5d3b782f027c - build_script_build::main::h48dfa4f3f1157bcb
[INFO] [stderr]     35:     0x5d3b782f1593 - core::ops::function::FnOnce::call_once::he66947db012aa5dc
[INFO] [stderr]     36:     0x5d3b782f1446 - std::sys::backtrace::__rust_begin_short_backtrace::hd60bd75876e92d86
[INFO] [stderr]     37:     0x5d3b782f13b9 - std::rt::lang_start::{{closure}}::h932da4b714eefcc0
[INFO] [stderr]     38:     0x5d3b786fa170 - core::ops::function::impls::<impl core::ops::function::FnOnce<A> for &F>::call_once::h9095abc9db71b07e
[INFO] [stderr]                                  at /rustc/c2e32f1c9652b13ed99608599c1e855462f421f3/library/core/src/ops/function.rs:287:21
[INFO] [stderr]     39:     0x5d3b786fa170 - std::panicking::catch_unwind::do_call::h6cf5dc461761418c
[INFO] [stderr]                                  at /rustc/c2e32f1c9652b13ed99608599c1e855462f421f3/library/std/src/panicking.rs:590:40
[INFO] [stderr]     40:     0x5d3b786fa170 - std::panicking::catch_unwind::h60074fd2327f40bd
[INFO] [stderr]                                  at /rustc/c2e32f1c9652b13ed99608599c1e855462f421f3/library/std/src/panicking.rs:553:19
[INFO] [stderr]     41:     0x5d3b786fa170 - std::panic::catch_unwind::heb14fa8e39d051cf
[INFO] [stderr]                                  at /rustc/c2e32f1c9652b13ed99608599c1e855462f421f3/library/std/src/panic.rs:359:14
[INFO] [stderr]     42:     0x5d3b786fa170 - std::rt::lang_start_internal::{{closure}}::hfb550bec36306a19
[INFO] [stderr]                                  at /rustc/c2e32f1c9652b13ed99608599c1e855462f421f3/library/std/src/rt.rs:175:24
[INFO] [stderr]     43:     0x5d3b786fa170 - std::panicking::catch_unwind::do_call::hc805f36f35b6d647
[INFO] [stderr]                                  at /rustc/c2e32f1c9652b13ed99608599c1e855462f421f3/library/std/src/panicking.rs:590:40
[INFO] [stderr]     44:     0x5d3b786fa170 - std::panicking::catch_unwind::hb8d32f0195463ad2
[INFO] [stderr]                                  at /rustc/c2e32f1c9652b13ed99608599c1e855462f421f3/library/std/src/panicking.rs:553:19
[INFO] [stderr]     45:     0x5d3b786fa170 - std::panic::catch_unwind::hcebe3b1d5adfc5a2
[INFO] [stderr]                                  at /rustc/c2e32f1c9652b13ed99608599c1e855462f421f3/library/std/src/panic.rs:359:14
[INFO] [stderr]     46:     0x5d3b786fa170 - std::rt::lang_start_internal::h27f55ed238aa26df
[INFO] [stderr]                                  at /rustc/c2e32f1c9652b13ed99608599c1e855462f421f3/library/std/src/rt.rs:171:5
[INFO] [stderr]     47:     0x5d3b782f13a1 - std::rt::lang_start::hfa04b8c68485d069
[INFO] [stderr]     48:     0x5d3b782f41e5 - main
[INFO] [stderr]     49:     0x78a102eba1ca - <unknown>
[INFO] [stderr]     50:     0x78a102eba28b - __libc_start_main
[INFO] [stderr]     51:     0x5d3b782ecb35 - _start
[INFO] [stderr]     52:                0x0 - <unknown>
[INFO] running `Command { std: "docker" "inspect" "4904608cd07e3e8a1d15ec2b206015003b873f0f6d0e50f362930095d2387242", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4904608cd07e3e8a1d15ec2b206015003b873f0f6d0e50f362930095d2387242", kill_on_drop: false }`
[INFO] [stdout] 4904608cd07e3e8a1d15ec2b206015003b873f0f6d0e50f362930095d2387242