[INFO] fetching crate ff_buffer 0.1.0...
[INFO] checking ff_buffer-0.1.0 against try#c659ee110de67e82444e4b6c8407c1a9af9c2cf6 for pr-145608-1
[INFO] extracting crate ff_buffer 0.1.0 into /workspace/builds/worker-6-tc2/source
[INFO] removed /workspace/builds/worker-6-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-6-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate ff_buffer 0.1.0 on toolchain c659ee110de67e82444e4b6c8407c1a9af9c2cf6
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c659ee110de67e82444e4b6c8407c1a9af9c2cf6" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[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" "+c659ee110de67e82444e4b6c8407c1a9af9c2cf6" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+c659ee110de67e82444e4b6c8407c1a9af9c2cf6" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 114da86c8ede6daeebffdddda3301b2bec075dcac71bb6086d63340920d9e1d9
[INFO] running `Command { std: "docker" "start" "-a" "114da86c8ede6daeebffdddda3301b2bec075dcac71bb6086d63340920d9e1d9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "114da86c8ede6daeebffdddda3301b2bec075dcac71bb6086d63340920d9e1d9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "114da86c8ede6daeebffdddda3301b2bec075dcac71bb6086d63340920d9e1d9", kill_on_drop: false }`
[INFO] [stdout] 114da86c8ede6daeebffdddda3301b2bec075dcac71bb6086d63340920d9e1d9
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+c659ee110de67e82444e4b6c8407c1a9af9c2cf6" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 694801effe6c89141e5653da201fa48df7e1f9f7ed3fb700887bedf5ac10537e
[INFO] running `Command { std: "docker" "start" "-a" "694801effe6c89141e5653da201fa48df7e1f9f7ed3fb700887bedf5ac10537e", kill_on_drop: false }`
[INFO] [stderr]    Compiling serde v1.0.188
[INFO] [stderr]    Compiling libc v0.2.148
[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 rustix v0.38.15
[INFO] [stderr]    Compiling syn v2.0.37
[INFO] [stderr]     Checking bitflags v2.4.0
[INFO] [stderr]     Checking anstyle v1.0.4
[INFO] [stderr]     Checking ciborium-io v0.2.1
[INFO] [stderr]     Checking linux-raw-sys v0.4.8
[INFO] [stderr]     Checking plotters-backend v0.3.5
[INFO] [stderr]     Checking regex-syntax v0.7.5
[INFO] [stderr]     Checking half v1.8.2
[INFO] [stderr]     Checking clap_lex v0.5.1
[INFO] [stderr]     Checking clap_builder v4.4.6
[INFO] [stderr]     Checking ciborium-ll v0.2.1
[INFO] [stderr]     Checking plotters-svg v0.3.5
[INFO] [stderr]     Checking itertools v0.10.5
[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 is-terminal v0.4.9
[INFO] [stderr]     Checking rayon v1.8.0
[INFO] [stderr]     Checking oorandom v11.1.3
[INFO] [stderr]     Checking plotters v0.3.5
[INFO] [stderr]     Checking regex-automata v0.3.9
[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-d4bf225bcd68bf3b/build-script-build` (exit status: 101)
[INFO] [stderr]   --- stderr
[INFO] [stderr] 
[INFO] [stderr]   thread 'main' (420) panicked at build.rs:25:9:
[INFO] [stderr]   FastFlow not found!
[INFO] [stderr]   stack backtrace:
[INFO] [stderr]      0:     0x5fc414803b72 - std::backtrace_rs::backtrace::libunwind::trace::hbea4c4361d976d9f
[INFO] [stderr]                                  at /rustc/c659ee110de67e82444e4b6c8407c1a9af9c2cf6/library/std/src/../../backtrace/src/backtrace/libunwind.rs:117:9
[INFO] [stderr]      1:     0x5fc414803b72 - std::backtrace_rs::backtrace::trace_unsynchronized::h24ac09a275696d40
[INFO] [stderr]                                  at /rustc/c659ee110de67e82444e4b6c8407c1a9af9c2cf6/library/std/src/../../backtrace/src/backtrace/mod.rs:66:14
[INFO] [stderr]      2:     0x5fc414803b72 - std::sys::backtrace::_print_fmt::h082519eb085fbf7d
[INFO] [stderr]                                  at /rustc/c659ee110de67e82444e4b6c8407c1a9af9c2cf6/library/std/src/sys/backtrace.rs:66:9
[INFO] [stderr]      3:     0x5fc414803b72 - <std::sys::backtrace::BacktraceLock::print::DisplayBacktrace as core::fmt::Display>::fmt::h2cd9656577aefc6d
[INFO] [stderr]                                  at /rustc/c659ee110de67e82444e4b6c8407c1a9af9c2cf6/library/std/src/sys/backtrace.rs:39:26
[INFO] [stderr]      4:     0x5fc4148262ff - core::fmt::rt::Argument::fmt::h12bc9925885d5110
[INFO] [stderr]                                  at /rustc/c659ee110de67e82444e4b6c8407c1a9af9c2cf6/library/core/src/fmt/rt.rs:173:76
[INFO] [stderr]      5:     0x5fc4148262ff - core::fmt::write::h5bf12ce417f28db4
[INFO] [stderr]                                  at /rustc/c659ee110de67e82444e4b6c8407c1a9af9c2cf6/library/core/src/fmt/mod.rs:1468:25
[INFO] [stderr]      6:     0x5fc4147f4683 - std::io::default_write_fmt::h6670289da6979956
[INFO] [stderr]                                  at /rustc/c659ee110de67e82444e4b6c8407c1a9af9c2cf6/library/std/src/io/mod.rs:639:11
[INFO] [stderr]      7:     0x5fc4147f4683 - std::io::Write::write_fmt::h279920046451d90f
[INFO] [stderr]                                  at /rustc/c659ee110de67e82444e4b6c8407c1a9af9c2cf6/library/std/src/io/mod.rs:1954:13
[INFO] [stderr]      8:     0x5fc414803cf2 - std::sys::backtrace::BacktraceLock::print::h80e4c589a4f701f2
[INFO] [stderr]                                  at /rustc/c659ee110de67e82444e4b6c8407c1a9af9c2cf6/library/std/src/sys/backtrace.rs:42:9
[INFO] [stderr]      9:     0x5fc4147f097c - std::panicking::default_hook::{{closure}}::h15ddaac16a5a7446
[INFO] [stderr]                                  at /rustc/c659ee110de67e82444e4b6c8407c1a9af9c2cf6/library/std/src/panicking.rs:301:27
[INFO] [stderr]     10:     0x5fc4147f07be - std::panicking::default_hook::hb187b31075710008
[INFO] [stderr]                                  at /rustc/c659ee110de67e82444e4b6c8407c1a9af9c2cf6/library/std/src/panicking.rs:328:9
[INFO] [stderr]     11:     0x5fc4147efdcf - std::panicking::panic_with_hook::h13a15813804ea1a7
[INFO] [stderr]                                  at /rustc/c659ee110de67e82444e4b6c8407c1a9af9c2cf6/library/std/src/panicking.rs:834:13
[INFO] [stderr]     12:     0x5fc414803d76 - std::panicking::panic_handler::{{closure}}::h6e8a7899819f7e8e
[INFO] [stderr]                                  at /rustc/c659ee110de67e82444e4b6c8407c1a9af9c2cf6/library/std/src/panicking.rs:700:13
[INFO] [stderr]     13:     0x5fc414803d09 - std::sys::backtrace::__rust_end_short_backtrace::h9ee05d6aba5d3318
[INFO] [stderr]                                  at /rustc/c659ee110de67e82444e4b6c8407c1a9af9c2cf6/library/std/src/sys/backtrace.rs:174:18
[INFO] [stderr]     14:     0x5fc4147effdd - __rustc[106fd6a171f8100f]::rust_begin_unwind
[INFO] [stderr]                                  at /rustc/c659ee110de67e82444e4b6c8407c1a9af9c2cf6/library/std/src/panicking.rs:698:5
[INFO] [stderr]     15:     0x5fc41482ac20 - core::panicking::panic_fmt::h1f7e7fb8eac469a1
[INFO] [stderr]                                  at /rustc/c659ee110de67e82444e4b6c8407c1a9af9c2cf6/library/core/src/panicking.rs:75:14
[INFO] [stderr]     16:     0x5fc41476badb - build_script_build::main::h1f2bfb9e28258674
[INFO] [stderr]     17:     0x5fc41476d523 - core::ops::function::FnOnce::call_once::h9e232e72980c64f9
[INFO] [stderr]     18:     0x5fc41476dd16 - std::sys::backtrace::__rust_begin_short_backtrace::hdd8e7fc71c51bc59
[INFO] [stderr]     19:     0x5fc41476d949 - std::rt::lang_start::{{closure}}::h8dfa885a65c8c80e
[INFO] [stderr]     20:     0x5fc414804530 - core::ops::function::impls::<impl core::ops::function::FnOnce<A> for &F>::call_once::hf041d389344f56bb
[INFO] [stderr]                                  at /rustc/c659ee110de67e82444e4b6c8407c1a9af9c2cf6/library/core/src/ops/function.rs:290:21
[INFO] [stderr]     21:     0x5fc414804530 - std::panicking::catch_unwind::do_call::hcc878ac5325385ca
[INFO] [stderr]                                  at /rustc/c659ee110de67e82444e4b6c8407c1a9af9c2cf6/library/std/src/panicking.rs:590:40
[INFO] [stderr]     22:     0x5fc414804530 - std::panicking::catch_unwind::h19b909e5851b1ecc
[INFO] [stderr]                                  at /rustc/c659ee110de67e82444e4b6c8407c1a9af9c2cf6/library/std/src/panicking.rs:553:19
[INFO] [stderr]     23:     0x5fc414804530 - std::panic::catch_unwind::hf7b61f0d85beddf7
[INFO] [stderr]                                  at /rustc/c659ee110de67e82444e4b6c8407c1a9af9c2cf6/library/std/src/panic.rs:359:14
[INFO] [stderr]     24:     0x5fc414804530 - std::rt::lang_start_internal::{{closure}}::hf4a2cf218490b1eb
[INFO] [stderr]                                  at /rustc/c659ee110de67e82444e4b6c8407c1a9af9c2cf6/library/std/src/rt.rs:175:24
[INFO] [stderr]     25:     0x5fc414804530 - std::panicking::catch_unwind::do_call::h87d50ac29e3f2ea1
[INFO] [stderr]                                  at /rustc/c659ee110de67e82444e4b6c8407c1a9af9c2cf6/library/std/src/panicking.rs:590:40
[INFO] [stderr]     26:     0x5fc414804530 - std::panicking::catch_unwind::h74fa98d980427683
[INFO] [stderr]                                  at /rustc/c659ee110de67e82444e4b6c8407c1a9af9c2cf6/library/std/src/panicking.rs:553:19
[INFO] [stderr]     27:     0x5fc414804530 - std::panic::catch_unwind::hea88d035b3883372
[INFO] [stderr]                                  at /rustc/c659ee110de67e82444e4b6c8407c1a9af9c2cf6/library/std/src/panic.rs:359:14
[INFO] [stderr]     28:     0x5fc414804530 - std::rt::lang_start_internal::h9835821d1cda1ad4
[INFO] [stderr]                                  at /rustc/c659ee110de67e82444e4b6c8407c1a9af9c2cf6/library/std/src/rt.rs:171:5
[INFO] [stderr]     29:     0x5fc41476d981 - std::rt::lang_start::h24f59d4a6a7e4655
[INFO] [stderr]     30:     0x5fc41476e1c5 - main
[INFO] [stderr]     31:     0x7451cf56e1ca - <unknown>
[INFO] [stderr]     32:     0x7451cf56e28b - __libc_start_main
[INFO] [stderr]     33:     0x5fc41476b2f5 - _start
[INFO] [stderr]     34:                0x0 - <unknown>
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] running `Command { std: "docker" "inspect" "694801effe6c89141e5653da201fa48df7e1f9f7ed3fb700887bedf5ac10537e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "694801effe6c89141e5653da201fa48df7e1f9f7ed3fb700887bedf5ac10537e", kill_on_drop: false }`
[INFO] [stdout] 694801effe6c89141e5653da201fa48df7e1f9f7ed3fb700887bedf5ac10537e