[INFO] fetching crate ff_buffer 0.1.0...
[INFO] checking ff_buffer-0.1.0 against nightly-2024-02-05 for check-cfg
[INFO] extracting crate ff_buffer 0.1.0 into /workspace/builds/worker-1-tc1/source
[INFO] validating manifest of crates.io crate ff_buffer 0.1.0 on toolchain nightly-2024-02-05
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+nightly-2024-02-05" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] removed /workspace/builds/worker-1-tc1/source/.cargo/config
[INFO] started tweaking crates.io crate ff_buffer 0.1.0
[INFO] finished tweaking crates.io crate ff_buffer 0.1.0
[INFO] tweaked toml for crates.io crate ff_buffer 0.1.0 written to /workspace/builds/worker-1-tc1/source/Cargo.toml
[INFO] crate crates.io crate ff_buffer 0.1.0 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+nightly-2024-02-05" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded ciborium-io v0.2.1
[INFO] [stderr]   Downloaded ciborium v0.2.1
[INFO] [stderr]   Downloaded clap v4.4.6
[INFO] [stderr]   Downloaded ciborium-ll v0.2.1
[INFO] [stderr]   Downloaded clap_builder v4.4.6
[INFO] [stderr]   Downloaded rustix v0.38.15
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+nightly-2024-02-05" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 0a9fb2774a7394fb622e757eb7cc14e52a3da3b2edd424bb34c09106e1d1b674
[INFO] running `Command { std: "docker" "start" "-a" "0a9fb2774a7394fb622e757eb7cc14e52a3da3b2edd424bb34c09106e1d1b674", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "0a9fb2774a7394fb622e757eb7cc14e52a3da3b2edd424bb34c09106e1d1b674", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0a9fb2774a7394fb622e757eb7cc14e52a3da3b2edd424bb34c09106e1d1b674", kill_on_drop: false }`
[INFO] [stdout] 0a9fb2774a7394fb622e757eb7cc14e52a3da3b2edd424bb34c09106e1d1b674
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+nightly-2024-02-05" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 15c087cda8d5c182bca2ca0c56f97aa90f7a03d6e55b7964bfdeea5d6e543f9c
[INFO] running `Command { std: "docker" "start" "-a" "15c087cda8d5c182bca2ca0c56f97aa90f7a03d6e55b7964bfdeea5d6e543f9c", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.67
[INFO] [stderr]    Compiling libc v0.2.148
[INFO] [stderr]    Compiling memoffset v0.9.0
[INFO] [stderr]    Compiling crossbeam-utils v0.8.16
[INFO] [stderr]    Compiling crossbeam-epoch v0.9.15
[INFO] [stderr]    Compiling serde v1.0.188
[INFO] [stderr]    Compiling option-ext v0.2.0
[INFO] [stderr]    Compiling num-traits v0.2.16
[INFO] [stderr]    Compiling rayon-core v1.12.0
[INFO] [stderr]    Compiling serde_json v1.0.107
[INFO] [stderr]    Compiling rustix v0.38.15
[INFO] [stderr]     Checking linux-raw-sys v0.4.8
[INFO] [stderr]     Checking anstyle v1.0.4
[INFO] [stderr]     Checking half v1.8.2
[INFO] [stderr]     Checking bitflags v2.4.0
[INFO] [stderr]     Checking clap_lex v0.5.1
[INFO] [stderr]     Checking regex-syntax v0.7.5
[INFO] [stderr]     Checking crossbeam-deque v0.8.3
[INFO] [stderr]     Checking itoa v1.0.9
[INFO] [stderr]     Checking ciborium-io v0.2.1
[INFO] [stderr]    Compiling quote v1.0.33
[INFO] [stderr]     Checking ryu v1.0.15
[INFO] [stderr]     Checking clap_builder v4.4.6
[INFO] [stderr]     Checking ciborium-ll v0.2.1
[INFO] [stderr]    Compiling syn v2.0.37
[INFO] [stderr]    Compiling jobserver v0.1.26
[INFO] [stderr]    Compiling dirs-sys v0.4.1
[INFO] [stderr]    Compiling dirs v5.0.1
[INFO] [stderr]    Compiling cc v1.0.83
[INFO] [stderr]     Checking rayon v1.8.0
[INFO] [stderr]     Checking is-terminal v0.4.9
[INFO] [stderr]     Checking plotters v0.3.5
[INFO] [stderr]     Checking regex-automata v0.3.9
[INFO] [stderr]     Checking clap v4.4.6
[INFO] [stderr]    Compiling ff_buffer v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] error: failed to run custom build command for `ff_buffer v0.1.0 (/opt/rustwide/workdir)`
[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/ff_buffer-6bf6a51b6d854121/build-script-build` (exit status: 101)
[INFO] [stderr]   --- stderr
[INFO] [stderr]   thread 'main' panicked at build.rs:25:9:
[INFO] [stderr]   FastFlow not found!
[INFO] [stderr]   stack backtrace:
[INFO] [stderr]      0:     0x55b7bea9e206 - std::backtrace_rs::backtrace::libunwind::trace::heebc7766b165eb2a
[INFO] [stderr]                                  at /rustc/268dbbbc4b3fd71c5f360a4d0728295252430b5b/library/std/src/../../backtrace/src/backtrace/libunwind.rs:104:5
[INFO] [stderr]      1:     0x55b7bea9e206 - std::backtrace_rs::backtrace::trace_unsynchronized::ha677020d8fc0296d
[INFO] [stderr]                                  at /rustc/268dbbbc4b3fd71c5f360a4d0728295252430b5b/library/std/src/../../backtrace/src/backtrace/mod.rs:66:5
[INFO] [stderr]      2:     0x55b7bea9e206 - std::sys_common::backtrace::_print_fmt::hcaff2fd86a1aeaa3
[INFO] [stderr]                                  at /rustc/268dbbbc4b3fd71c5f360a4d0728295252430b5b/library/std/src/sys_common/backtrace.rs:68:5
[INFO] [stderr]      3:     0x55b7bea9e206 - <std::sys_common::backtrace::_print::DisplayBacktrace as core::fmt::Display>::fmt::hc2446d8aa0059188
[INFO] [stderr]                                  at /rustc/268dbbbc4b3fd71c5f360a4d0728295252430b5b/library/std/src/sys_common/backtrace.rs:44:22
[INFO] [stderr]      4:     0x55b7beac4e10 - core::fmt::rt::Argument::fmt::h2fbb6454da37999b
[INFO] [stderr]                                  at /rustc/268dbbbc4b3fd71c5f360a4d0728295252430b5b/library/core/src/fmt/rt.rs:142:9
[INFO] [stderr]      5:     0x55b7beac4e10 - core::fmt::write::had96bdeda7d49d3a
[INFO] [stderr]                                  at /rustc/268dbbbc4b3fd71c5f360a4d0728295252430b5b/library/core/src/fmt/mod.rs:1120:17
[INFO] [stderr]      6:     0x55b7bea9ae6f - std::io::Write::write_fmt::h30b1f36eea05b391
[INFO] [stderr]                                  at /rustc/268dbbbc4b3fd71c5f360a4d0728295252430b5b/library/std/src/io/mod.rs:1849:15
[INFO] [stderr]      7:     0x55b7bea9dfe4 - std::sys_common::backtrace::_print::hc333bb91ae972137
[INFO] [stderr]                                  at /rustc/268dbbbc4b3fd71c5f360a4d0728295252430b5b/library/std/src/sys_common/backtrace.rs:47:5
[INFO] [stderr]      8:     0x55b7bea9dfe4 - std::sys_common::backtrace::print::h18fd3c71a95a3169
[INFO] [stderr]                                  at /rustc/268dbbbc4b3fd71c5f360a4d0728295252430b5b/library/std/src/sys_common/backtrace.rs:34:9
[INFO] [stderr]      9:     0x55b7bea9ff17 - std::panicking::default_hook::{{closure}}::ha3473f9bcb4e9a37
[INFO] [stderr]     10:     0x55b7bea9fc79 - std::panicking::default_hook::h23d9d43185db6584
[INFO] [stderr]                                  at /rustc/268dbbbc4b3fd71c5f360a4d0728295252430b5b/library/std/src/panicking.rs:292:9
[INFO] [stderr]     11:     0x55b7beaa03a8 - std::panicking::rust_panic_with_hook::h94aceaa7df3a6edd
[INFO] [stderr]                                  at /rustc/268dbbbc4b3fd71c5f360a4d0728295252430b5b/library/std/src/panicking.rs:781:13
[INFO] [stderr]     12:     0x55b7beaa0249 - std::panicking::begin_panic_handler::{{closure}}::h9905d45d1d82fc42
[INFO] [stderr]                                  at /rustc/268dbbbc4b3fd71c5f360a4d0728295252430b5b/library/std/src/panicking.rs:651:13
[INFO] [stderr]     13:     0x55b7bea9e706 - std::sys_common::backtrace::__rust_end_short_backtrace::hb02085545dc143b9
[INFO] [stderr]                                  at /rustc/268dbbbc4b3fd71c5f360a4d0728295252430b5b/library/std/src/sys_common/backtrace.rs:171:18
[INFO] [stderr]     14:     0x55b7bea9ffd4 - rust_begin_unwind
[INFO] [stderr]                                  at /rustc/268dbbbc4b3fd71c5f360a4d0728295252430b5b/library/std/src/panicking.rs:647:5
[INFO] [stderr]     15:     0x55b7bea04935 - core::panicking::panic_fmt::h6dca3983f8a9f4d0
[INFO] [stderr]                                  at /rustc/268dbbbc4b3fd71c5f360a4d0728295252430b5b/library/core/src/panicking.rs:72:14
[INFO] [stderr]     16:     0x55b7bea0921a - build_script_build::main::h3ecd74d4351a8d7f
[INFO] [stderr]     17:     0x55b7bea061a3 - core::ops::function::FnOnce::call_once::h321d542442ac692d
[INFO] [stderr]     18:     0x55b7bea05d16 - std::sys_common::backtrace::__rust_begin_short_backtrace::hb79ed66e046cb456
[INFO] [stderr]     19:     0x55b7bea05e19 - std::rt::lang_start::{{closure}}::h254bb79dbd83de10
[INFO] [stderr]     20:     0x55b7bea95891 - core::ops::function::impls::<impl core::ops::function::FnOnce<A> for &F>::call_once::h298d8ff12ebcec8c
[INFO] [stderr]                                  at /rustc/268dbbbc4b3fd71c5f360a4d0728295252430b5b/library/core/src/ops/function.rs:284:13
[INFO] [stderr]     21:     0x55b7bea95891 - std::panicking::try::do_call::hbd0ffb05da5bd343
[INFO] [stderr]                                  at /rustc/268dbbbc4b3fd71c5f360a4d0728295252430b5b/library/std/src/panicking.rs:554:40
[INFO] [stderr]     22:     0x55b7bea95891 - std::panicking::try::h11c9a152defd5d2a
[INFO] [stderr]                                  at /rustc/268dbbbc4b3fd71c5f360a4d0728295252430b5b/library/std/src/panicking.rs:518:19
[INFO] [stderr]     23:     0x55b7bea95891 - std::panic::catch_unwind::h0d6db2fa902b4d64
[INFO] [stderr]                                  at /rustc/268dbbbc4b3fd71c5f360a4d0728295252430b5b/library/std/src/panic.rs:142:14
[INFO] [stderr]     24:     0x55b7bea95891 - std::rt::lang_start_internal::{{closure}}::hdcc09b4aad7ef821
[INFO] [stderr]                                  at /rustc/268dbbbc4b3fd71c5f360a4d0728295252430b5b/library/std/src/rt.rs:148:48
[INFO] [stderr]     25:     0x55b7bea95891 - std::panicking::try::do_call::h3ffd2f162d60900f
[INFO] [stderr]                                  at /rustc/268dbbbc4b3fd71c5f360a4d0728295252430b5b/library/std/src/panicking.rs:554:40
[INFO] [stderr]     26:     0x55b7bea95891 - std::panicking::try::heeba82b9c3e190fb
[INFO] [stderr]                                  at /rustc/268dbbbc4b3fd71c5f360a4d0728295252430b5b/library/std/src/panicking.rs:518:19
[INFO] [stderr]     27:     0x55b7bea95891 - std::panic::catch_unwind::hdaab8f1c188f387f
[INFO] [stderr]                                  at /rustc/268dbbbc4b3fd71c5f360a4d0728295252430b5b/library/std/src/panic.rs:142:14
[INFO] [stderr]     28:     0x55b7bea95891 - std::rt::lang_start_internal::h9989e088c48b7903
[INFO] [stderr]                                  at /rustc/268dbbbc4b3fd71c5f360a4d0728295252430b5b/library/std/src/rt.rs:148:20
[INFO] [stderr]     29:     0x55b7bea05df7 - std::rt::lang_start::h8c149a8ecd58ff55
[INFO] [stderr]     30:     0x55b7bea092e5 - main
[INFO] [stderr]     31:     0x7f785997bd90 - <unknown>
[INFO] [stderr]     32:     0x7f785997be40 - __libc_start_main
[INFO] [stderr]     33:     0x55b7bea050a5 - _start
[INFO] [stderr]     34:                0x0 - <unknown>
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] running `Command { std: "docker" "inspect" "15c087cda8d5c182bca2ca0c56f97aa90f7a03d6e55b7964bfdeea5d6e543f9c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "15c087cda8d5c182bca2ca0c56f97aa90f7a03d6e55b7964bfdeea5d6e543f9c", kill_on_drop: false }`
[INFO] [stdout] 15c087cda8d5c182bca2ca0c56f97aa90f7a03d6e55b7964bfdeea5d6e543f9c
[INFO] checking ff_buffer-0.1.0 against nightly-2024-02-05+rustflags=-Dunexpected_cfgs+cargoflags=-Zcheck-cfg for check-cfg
[INFO] extracting crate ff_buffer 0.1.0 into /workspace/builds/worker-1-tc2/source
[INFO] validating manifest of crates.io crate ff_buffer 0.1.0 on toolchain nightly-2024-02-05
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+nightly-2024-02-05" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] removed /workspace/builds/worker-1-tc2/source/.cargo/config
[INFO] started tweaking crates.io crate ff_buffer 0.1.0
[INFO] finished tweaking crates.io crate ff_buffer 0.1.0
[INFO] tweaked toml for crates.io crate ff_buffer 0.1.0 written to /workspace/builds/worker-1-tc2/source/Cargo.toml
[INFO] crate crates.io crate ff_buffer 0.1.0 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+nightly-2024-02-05" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+nightly-2024-02-05" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 0ebb33cf16b17906d0b7f6c0e4a84f472fb0e2e0d57d8fc38d7bf2b79c146c6a
[INFO] running `Command { std: "docker" "start" "-a" "0ebb33cf16b17906d0b7f6c0e4a84f472fb0e2e0d57d8fc38d7bf2b79c146c6a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "0ebb33cf16b17906d0b7f6c0e4a84f472fb0e2e0d57d8fc38d7bf2b79c146c6a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0ebb33cf16b17906d0b7f6c0e4a84f472fb0e2e0d57d8fc38d7bf2b79c146c6a", kill_on_drop: false }`
[INFO] [stdout] 0ebb33cf16b17906d0b7f6c0e4a84f472fb0e2e0d57d8fc38d7bf2b79c146c6a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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 -Dunexpected_cfgs" "-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+nightly-2024-02-05" "check" "--frozen" "--all" "--all-targets" "--message-format=json" "-Zcheck-cfg", kill_on_drop: false }`
[INFO] [stdout] 3d7a09cef72f85d5abba3bed2e03335f96ad6b68b23dd1b22f15719647c8fbe3
[INFO] running `Command { std: "docker" "start" "-a" "3d7a09cef72f85d5abba3bed2e03335f96ad6b68b23dd1b22f15719647c8fbe3", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.67
[INFO] [stderr]    Compiling libc v0.2.148
[INFO] [stderr]    Compiling memoffset v0.9.0
[INFO] [stderr]    Compiling crossbeam-utils v0.8.16
[INFO] [stderr]    Compiling crossbeam-epoch v0.9.15
[INFO] [stderr]    Compiling serde v1.0.188
[INFO] [stderr]    Compiling option-ext v0.2.0
[INFO] [stderr]    Compiling num-traits v0.2.16
[INFO] [stderr]    Compiling serde_json v1.0.107
[INFO] [stderr]    Compiling rustix v0.38.15
[INFO] [stderr]    Compiling rayon-core v1.12.0
[INFO] [stderr]     Checking linux-raw-sys v0.4.8
[INFO] [stderr]     Checking half v1.8.2
[INFO] [stderr]     Checking regex-syntax v0.7.5
[INFO] [stderr]     Checking ciborium-io v0.2.1
[INFO] [stderr]     Checking anstyle v1.0.4
[INFO] [stderr]     Checking itoa v1.0.9
[INFO] [stderr]     Checking bitflags v2.4.0
[INFO] [stderr]     Checking clap_lex v0.5.1
[INFO] [stderr]    Compiling quote v1.0.33
[INFO] [stderr]     Checking crossbeam-deque v0.8.3
[INFO] [stderr]     Checking ryu v1.0.15
[INFO] [stderr]     Checking clap_builder v4.4.6
[INFO] [stderr]    Compiling syn v2.0.37
[INFO] [stderr]    Compiling dirs-sys v0.4.1
[INFO] [stderr]    Compiling jobserver v0.1.26
[INFO] [stderr]    Compiling dirs v5.0.1
[INFO] [stderr]    Compiling cc v1.0.83
[INFO] [stderr]     Checking ciborium-ll v0.2.1
[INFO] [stderr]     Checking rayon v1.8.0
[INFO] [stderr]     Checking is-terminal v0.4.9
[INFO] [stderr]     Checking regex-automata v0.3.9
[INFO] [stderr]     Checking plotters v0.3.5
[INFO] [stderr]    Compiling ff_buffer v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] error: failed to run custom build command for `ff_buffer v0.1.0 (/opt/rustwide/workdir)`
[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/ff_buffer-6bf6a51b6d854121/build-script-build` (exit status: 101)
[INFO] [stderr]   --- stderr
[INFO] [stderr]   thread 'main' panicked at build.rs:25:9:
[INFO] [stderr]   FastFlow not found!
[INFO] [stderr]   stack backtrace:
[INFO] [stderr]      0:     0x559bd6c1e206 - std::backtrace_rs::backtrace::libunwind::trace::heebc7766b165eb2a
[INFO] [stderr]                                  at /rustc/268dbbbc4b3fd71c5f360a4d0728295252430b5b/library/std/src/../../backtrace/src/backtrace/libunwind.rs:104:5
[INFO] [stderr]      1:     0x559bd6c1e206 - std::backtrace_rs::backtrace::trace_unsynchronized::ha677020d8fc0296d
[INFO] [stderr]                                  at /rustc/268dbbbc4b3fd71c5f360a4d0728295252430b5b/library/std/src/../../backtrace/src/backtrace/mod.rs:66:5
[INFO] [stderr]      2:     0x559bd6c1e206 - std::sys_common::backtrace::_print_fmt::hcaff2fd86a1aeaa3
[INFO] [stderr]                                  at /rustc/268dbbbc4b3fd71c5f360a4d0728295252430b5b/library/std/src/sys_common/backtrace.rs:68:5
[INFO] [stderr]      3:     0x559bd6c1e206 - <std::sys_common::backtrace::_print::DisplayBacktrace as core::fmt::Display>::fmt::hc2446d8aa0059188
[INFO] [stderr]                                  at /rustc/268dbbbc4b3fd71c5f360a4d0728295252430b5b/library/std/src/sys_common/backtrace.rs:44:22
[INFO] [stderr]      4:     0x559bd6c44e10 - core::fmt::rt::Argument::fmt::h2fbb6454da37999b
[INFO] [stderr]                                  at /rustc/268dbbbc4b3fd71c5f360a4d0728295252430b5b/library/core/src/fmt/rt.rs:142:9
[INFO] [stderr]      5:     0x559bd6c44e10 - core::fmt::write::had96bdeda7d49d3a
[INFO] [stderr]                                  at /rustc/268dbbbc4b3fd71c5f360a4d0728295252430b5b/library/core/src/fmt/mod.rs:1120:17
[INFO] [stderr]      6:     0x559bd6c1ae6f - std::io::Write::write_fmt::h30b1f36eea05b391
[INFO] [stderr]                                  at /rustc/268dbbbc4b3fd71c5f360a4d0728295252430b5b/library/std/src/io/mod.rs:1849:15
[INFO] [stderr]      7:     0x559bd6c1dfe4 - std::sys_common::backtrace::_print::hc333bb91ae972137
[INFO] [stderr]                                  at /rustc/268dbbbc4b3fd71c5f360a4d0728295252430b5b/library/std/src/sys_common/backtrace.rs:47:5
[INFO] [stderr]      8:     0x559bd6c1dfe4 - std::sys_common::backtrace::print::h18fd3c71a95a3169
[INFO] [stderr]                                  at /rustc/268dbbbc4b3fd71c5f360a4d0728295252430b5b/library/std/src/sys_common/backtrace.rs:34:9
[INFO] [stderr]      9:     0x559bd6c1ff17 - std::panicking::default_hook::{{closure}}::ha3473f9bcb4e9a37
[INFO] [stderr]     10:     0x559bd6c1fc79 - std::panicking::default_hook::h23d9d43185db6584
[INFO] [stderr]                                  at /rustc/268dbbbc4b3fd71c5f360a4d0728295252430b5b/library/std/src/panicking.rs:292:9
[INFO] [stderr]     11:     0x559bd6c203a8 - std::panicking::rust_panic_with_hook::h94aceaa7df3a6edd
[INFO] [stderr]                                  at /rustc/268dbbbc4b3fd71c5f360a4d0728295252430b5b/library/std/src/panicking.rs:781:13
[INFO] [stderr]     12:     0x559bd6c20249 - std::panicking::begin_panic_handler::{{closure}}::h9905d45d1d82fc42
[INFO] [stderr]                                  at /rustc/268dbbbc4b3fd71c5f360a4d0728295252430b5b/library/std/src/panicking.rs:651:13
[INFO] [stderr]     13:     0x559bd6c1e706 - std::sys_common::backtrace::__rust_end_short_backtrace::hb02085545dc143b9
[INFO] [stderr]                                  at /rustc/268dbbbc4b3fd71c5f360a4d0728295252430b5b/library/std/src/sys_common/backtrace.rs:171:18
[INFO] [stderr]     14:     0x559bd6c1ffd4 - rust_begin_unwind
[INFO] [stderr]                                  at /rustc/268dbbbc4b3fd71c5f360a4d0728295252430b5b/library/std/src/panicking.rs:647:5
[INFO] [stderr]     15:     0x559bd6b84935 - core::panicking::panic_fmt::h6dca3983f8a9f4d0
[INFO] [stderr]                                  at /rustc/268dbbbc4b3fd71c5f360a4d0728295252430b5b/library/core/src/panicking.rs:72:14
[INFO] [stderr]     16:     0x559bd6b8921a - build_script_build::main::h3ecd74d4351a8d7f
[INFO] [stderr]     17:     0x559bd6b861a3 - core::ops::function::FnOnce::call_once::h321d542442ac692d
[INFO] [stderr]     18:     0x559bd6b85d16 - std::sys_common::backtrace::__rust_begin_short_backtrace::hb79ed66e046cb456
[INFO] [stderr]     19:     0x559bd6b85e19 - std::rt::lang_start::{{closure}}::h254bb79dbd83de10
[INFO] [stderr]     20:     0x559bd6c15891 - core::ops::function::impls::<impl core::ops::function::FnOnce<A> for &F>::call_once::h298d8ff12ebcec8c
[INFO] [stderr]                                  at /rustc/268dbbbc4b3fd71c5f360a4d0728295252430b5b/library/core/src/ops/function.rs:284:13
[INFO] [stderr]     21:     0x559bd6c15891 - std::panicking::try::do_call::hbd0ffb05da5bd343
[INFO] [stderr]                                  at /rustc/268dbbbc4b3fd71c5f360a4d0728295252430b5b/library/std/src/panicking.rs:554:40
[INFO] [stderr]     22:     0x559bd6c15891 - std::panicking::try::h11c9a152defd5d2a
[INFO] [stderr]                                  at /rustc/268dbbbc4b3fd71c5f360a4d0728295252430b5b/library/std/src/panicking.rs:518:19
[INFO] [stderr]     23:     0x559bd6c15891 - std::panic::catch_unwind::h0d6db2fa902b4d64
[INFO] [stderr]                                  at /rustc/268dbbbc4b3fd71c5f360a4d0728295252430b5b/library/std/src/panic.rs:142:14
[INFO] [stderr]     24:     0x559bd6c15891 - std::rt::lang_start_internal::{{closure}}::hdcc09b4aad7ef821
[INFO] [stderr]                                  at /rustc/268dbbbc4b3fd71c5f360a4d0728295252430b5b/library/std/src/rt.rs:148:48
[INFO] [stderr]     25:     0x559bd6c15891 - std::panicking::try::do_call::h3ffd2f162d60900f
[INFO] [stderr]                                  at /rustc/268dbbbc4b3fd71c5f360a4d0728295252430b5b/library/std/src/panicking.rs:554:40
[INFO] [stderr]     26:     0x559bd6c15891 - std::panicking::try::heeba82b9c3e190fb
[INFO] [stderr]                                  at /rustc/268dbbbc4b3fd71c5f360a4d0728295252430b5b/library/std/src/panicking.rs:518:19
[INFO] [stderr]     27:     0x559bd6c15891 - std::panic::catch_unwind::hdaab8f1c188f387f
[INFO] [stderr]                                  at /rustc/268dbbbc4b3fd71c5f360a4d0728295252430b5b/library/std/src/panic.rs:142:14
[INFO] [stderr]     28:     0x559bd6c15891 - std::rt::lang_start_internal::h9989e088c48b7903
[INFO] [stderr]                                  at /rustc/268dbbbc4b3fd71c5f360a4d0728295252430b5b/library/std/src/rt.rs:148:20
[INFO] [stderr]     29:     0x559bd6b85df7 - std::rt::lang_start::h8c149a8ecd58ff55
[INFO] [stderr]     30:     0x559bd6b892e5 - main
[INFO] [stderr]     31:     0x7f7f570b6d90 - <unknown>
[INFO] [stderr]     32:     0x7f7f570b6e40 - __libc_start_main
[INFO] [stderr]     33:     0x559bd6b850a5 - _start
[INFO] [stderr]     34:                0x0 - <unknown>
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] running `Command { std: "docker" "inspect" "3d7a09cef72f85d5abba3bed2e03335f96ad6b68b23dd1b22f15719647c8fbe3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3d7a09cef72f85d5abba3bed2e03335f96ad6b68b23dd1b22f15719647c8fbe3", kill_on_drop: false }`
[INFO] [stdout] 3d7a09cef72f85d5abba3bed2e03335f96ad6b68b23dd1b22f15719647c8fbe3
