[INFO] fetching crate fm-bindings 0.1.5...
[INFO] testing fm-bindings-0.1.5 against 1.99.0-beta.8+cargoflags=--release for beta-release-1.100-2
[INFO] extracting crate fm-bindings 0.1.5 into /workspace/builds/worker-1-tc1/source
[INFO] started tweaking crates.io crate fm-bindings 0.1.5
[INFO] removed 0 missing examples
[INFO] removed 0 missing tests
[INFO] finished tweaking crates.io crate fm-bindings 0.1.5
[INFO] tweaked toml for crates.io crate fm-bindings 0.1.5 written to /workspace/builds/worker-1-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate fm-bindings 0.1.5 on toolchain 1.99.0-beta.8
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.99.0-beta.8" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate fm-bindings 0.1.5 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" "+1.99.0-beta.8" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,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" "-m" "1610612736" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:77db811e55d90add9212f6832c23229e3de5f1c1f9905e8cb07319ea15df73ac" "sleep" "infinity", kill_on_drop: false }`
[INFO] [stdout] 68b38caa185ca531abcd96731c71207bc6692f7e9898143600e80a4f48626494
[INFO] running `Command { std: "docker" "start" "68b38caa185ca531abcd96731c71207bc6692f7e9898143600e80a4f48626494", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "68b38caa185ca531abcd96731c71207bc6692f7e9898143600e80a4f48626494", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-w" "/opt/rustwide/workdir" "--user" "0:0" "68b38caa185ca531abcd96731c71207bc6692f7e9898143600e80a4f48626494" "/opt/rustwide/cargo-home/bin/cargo" "+1.99.0-beta.8" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "68b38caa185ca531abcd96731c71207bc6692f7e9898143600e80a4f48626494", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-w" "/opt/rustwide/workdir" "--user" "0:0" "68b38caa185ca531abcd96731c71207bc6692f7e9898143600e80a4f48626494" "/opt/rustwide/cargo-home/bin/cargo" "+1.99.0-beta.8" "build" "--frozen" "--message-format=json" "--release", kill_on_drop: false }`
[INFO] [stderr]    Compiling fm-bindings v0.1.5 (/opt/rustwide/workdir)
[INFO] [stderr] error: failed to run custom build command for `fm-bindings v0.1.5 (/opt/rustwide/workdir)`
[INFO] [stderr] note: To improve backtraces for build dependencies, set the CARGO_PROFILE_RELEASE_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/release/build/fm-bindings-04630406f28fd932/build-script-build` (exit status: 101)
[INFO] [stderr]   --- stdout
[INFO] [stderr]   cargo:rerun-if-changed=swift/
[INFO] [stderr]   cargo:rerun-if-env-changed=IPHONEOS_DEPLOYMENT_TARGET
[INFO] [stderr]   cargo:rerun-if-env-changed=MACOSX_DEPLOYMENT_TARGET
[INFO] [stderr] 
[INFO] [stderr]   --- stderr
[INFO] [stderr] 
[INFO] [stderr]   thread 'main' (81) panicked at build.rs:66:9:
[INFO] [stderr]   Unsupported target platform: x86_64-unknown-linux-gnu. This crate only supports iOS (device or simulator) and macOS targets with deployment target >= 26.0.
[INFO] [stderr]   stack backtrace:
[INFO] [stderr]      0:     0x5d1893598a01 - <<std[70759c8f55707aa4]::sys::backtrace::BacktraceLock>::print::DisplayBacktrace as core[df12db4294e9bfd3]::fmt::Display>::fmt
[INFO] [stderr]      1:     0x5d18935a9f5a - core[df12db4294e9bfd3]::fmt::write
[INFO] [stderr]      2:     0x5d189359c8dc - <std[70759c8f55707aa4]::sys::stdio::unix::Stderr as core[df12db4294e9bfd3]::io::write::Write>::write_fmt
[INFO] [stderr]      3:     0x5d189357afa6 - std[70759c8f55707aa4]::panicking::default_hook::{closure#0}
[INFO] [stderr]      4:     0x5d1893593c31 - std[70759c8f55707aa4]::panicking::default_hook
[INFO] [stderr]      5:     0x5d1893593deb - std[70759c8f55707aa4]::panicking::panic_with_hook
[INFO] [stderr]      6:     0x5d189357b052 - std[70759c8f55707aa4]::panicking::panic_handler::{closure#0}
[INFO] [stderr]      7:     0x5d1893573f59 - std[70759c8f55707aa4]::sys::backtrace::__rust_end_short_backtrace::<std[70759c8f55707aa4]::panicking::panic_handler::{closure#0}, !>
[INFO] [stderr]      8:     0x5d189357b84d - __rustc[8fa7c3cbc660c2b3]::rust_begin_unwind
[INFO] [stderr]      9:     0x5d18935aa6cc - core[df12db4294e9bfd3]::panicking::panic_fmt
[INFO] [stderr]     10:     0x5d18935652c3 - build_script_build[3e3217f80c88459a]::main
[INFO] [stderr]     11:     0x5d189356320b - <fn() as core[df12db4294e9bfd3]::ops::function::FnOnce<()>>::call_once
[INFO] [stderr]     12:     0x5d189355ead6 - std[70759c8f55707aa4]::sys::backtrace::__rust_begin_short_backtrace::<fn(), ()>
[INFO] [stderr]     13:     0x5d1893564589 - std[70759c8f55707aa4]::rt::lang_start::<()>::{closure#0}
[INFO] [stderr]     14:     0x5d1893593069 - std[70759c8f55707aa4]::rt::lang_start_internal
[INFO] [stderr]     15:     0x5d1893564261 - std[70759c8f55707aa4]::rt::lang_start::<()>
[INFO] [stderr]     16:     0x5d1893568c75 - main
[INFO] [stderr]     17:     0x7339234eb601 - <unknown>
[INFO] [stderr]     18:     0x7339234eb718 - __libc_start_main
[INFO] [stderr]     19:     0x5d189355d095 - _start
[INFO] [stderr]     20:                0x0 - <unknown>
[INFO] running `Command { std: "docker" "inspect" "68b38caa185ca531abcd96731c71207bc6692f7e9898143600e80a4f48626494", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "68b38caa185ca531abcd96731c71207bc6692f7e9898143600e80a4f48626494", kill_on_drop: false }`
[INFO] [stdout] 68b38caa185ca531abcd96731c71207bc6692f7e9898143600e80a4f48626494
