[INFO] cloning repository https://github.com/inoutch/rust-on-crossplatform
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/inoutch/rust-on-crossplatform" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Finoutch%2Frust-on-crossplatform", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Finoutch%2Frust-on-crossplatform'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 181f0aab3dea07948f357c8e581e80b016f7849a
[INFO] checking inoutch/rust-on-crossplatform against master#db0e836148accac8a22532e3596ac612b63c2d8e for pr-139272
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Finoutch%2Frust-on-crossplatform" "/workspace/builds/worker-0-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-0-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/inoutch/rust-on-crossplatform on toolchain db0e836148accac8a22532e3596ac612b63c2d8e
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+db0e836148accac8a22532e3596ac612b63c2d8e" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/inoutch/rust-on-crossplatform
[INFO] finished tweaking git repo https://github.com/inoutch/rust-on-crossplatform
[INFO] tweaked toml for git repo https://github.com/inoutch/rust-on-crossplatform written to /workspace/builds/worker-0-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/inoutch/rust-on-crossplatform 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" "+db0e836148accac8a22532e3596ac612b63c2d8e" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded cbindgen v0.15.0
[INFO] [stderr]   Downloaded unicode-segmentation v1.7.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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:b0b074c097205a61b89e8ad263052f976b2b332c4dc5f02aef1fe52501660d6e" "/opt/rustwide/cargo-home/bin/cargo" "+db0e836148accac8a22532e3596ac612b63c2d8e" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] fe4b07f13e6655a8dffeddd39d703485daea639db3d84e942043575c0e581efb
[INFO] running `Command { std: "docker" "start" "-a" "fe4b07f13e6655a8dffeddd39d703485daea639db3d84e942043575c0e581efb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "fe4b07f13e6655a8dffeddd39d703485daea639db3d84e942043575c0e581efb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "fe4b07f13e6655a8dffeddd39d703485daea639db3d84e942043575c0e581efb", kill_on_drop: false }`
[INFO] [stdout] fe4b07f13e6655a8dffeddd39d703485daea639db3d84e942043575c0e581efb
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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:b0b074c097205a61b89e8ad263052f976b2b332c4dc5f02aef1fe52501660d6e" "/opt/rustwide/cargo-home/bin/cargo" "+db0e836148accac8a22532e3596ac612b63c2d8e" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 69a63c21ef38e514d2f407af45f36ed51b21210e122d3798157496285c99c1ac
[INFO] running `Command { std: "docker" "start" "-a" "69a63c21ef38e514d2f407af45f36ed51b21210e122d3798157496285c99c1ac", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.80
[INFO] [stderr]    Compiling proc-macro2 v1.0.24
[INFO] [stderr]    Compiling unicode-xid v0.2.1
[INFO] [stderr]    Compiling getrandom v0.1.15
[INFO] [stderr]    Compiling syn v1.0.48
[INFO] [stderr]    Compiling cfg-if v0.1.10
[INFO] [stderr]    Compiling serde_derive v1.0.117
[INFO] [stderr]    Compiling log v0.4.11
[INFO] [stderr]    Compiling serde v1.0.117
[INFO] [stderr]    Compiling bitflags v1.2.1
[INFO] [stderr]    Compiling ppv-lite86 v0.2.10
[INFO] [stderr]    Compiling ryu v1.0.5
[INFO] [stderr]    Compiling autocfg v1.0.1
[INFO] [stderr]    Compiling serde_json v1.0.59
[INFO] [stderr]    Compiling memchr v2.3.4
[INFO] [stderr]    Compiling unicode-width v0.1.8
[INFO] [stderr]    Compiling unicode-segmentation v1.7.0
[INFO] [stderr]    Compiling strsim v0.8.0
[INFO] [stderr]    Compiling textwrap v0.11.0
[INFO] [stderr]    Compiling ansi_term v0.11.0
[INFO] [stderr]    Compiling itoa v0.4.6
[INFO] [stderr]    Compiling cbindgen v0.15.0
[INFO] [stderr]    Compiling vec_map v0.8.2
[INFO] [stderr]    Compiling remove_dir_all v0.5.3
[INFO] [stderr]    Compiling hashbrown v0.9.1
[INFO] [stderr]     Checking thread_local v1.0.1
[INFO] [stderr]    Compiling indexmap v1.6.0
[INFO] [stderr]     Checking regex-syntax v0.6.21
[INFO] [stderr]    Compiling heck v0.3.1
[INFO] [stderr]     Checking humantime v2.0.1
[INFO] [stderr]     Checking termcolor v1.1.0
[INFO] [stderr]     Checking aho-corasick v0.7.15
[INFO] [stderr]    Compiling atty v0.2.14
[INFO] [stderr]    Compiling clap v2.33.3
[INFO] [stderr]    Compiling rand_core v0.5.1
[INFO] [stderr]    Compiling quote v1.0.7
[INFO] [stderr]    Compiling rand_chacha v0.2.2
[INFO] [stderr]    Compiling rand v0.7.3
[INFO] [stderr]     Checking regex v1.4.2
[INFO] [stderr]    Compiling tempfile v3.1.0
[INFO] [stderr]     Checking env_logger v0.8.1
[INFO] [stderr]    Compiling toml v0.5.7
[INFO] [stderr]    Compiling rust_on_crossplatform v0.0.1 (/opt/rustwide/workdir)
[INFO] [stderr] error: failed to run custom build command for `rust_on_crossplatform v0.0.1 (/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/rust_on_crossplatform-2bd54cb85e920d78/build-script-build` (exit status: 101)
[INFO] [stderr]   --- stdout
[INFO] [stderr]   cargo:rerun-if-changed=src/lib.rs
[INFO] [stderr] 
[INFO] [stderr]   --- stderr
[INFO] [stderr] 
[INFO] [stderr]   thread 'main' panicked at /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/cbindgen-0.15.0/src/bindgen/bindings.rs:101:43:
[INFO] [stderr]   called `Result::unwrap()` on an `Err` value: Os { code: 30, kind: ReadOnlyFilesystem, message: "Read-only file system" }
[INFO] [stderr]   stack backtrace:
[INFO] [stderr]      0:     0x5d93cbb0e812 - std::backtrace_rs::backtrace::libunwind::trace::h808429412ee5eff4
[INFO] [stderr]                                  at /rustc/db0e836148accac8a22532e3596ac612b63c2d8e/library/std/src/../../backtrace/src/backtrace/libunwind.rs:117:9
[INFO] [stderr]      1:     0x5d93cbb0e812 - std::backtrace_rs::backtrace::trace_unsynchronized::h0af3c8406bbc26ee
[INFO] [stderr]                                  at /rustc/db0e836148accac8a22532e3596ac612b63c2d8e/library/std/src/../../backtrace/src/backtrace/mod.rs:66:14
[INFO] [stderr]      2:     0x5d93cbb0e812 - std::sys::backtrace::_print_fmt::h742cab3ed98a8bad
[INFO] [stderr]                                  at /rustc/db0e836148accac8a22532e3596ac612b63c2d8e/library/std/src/sys/backtrace.rs:66:9
[INFO] [stderr]      3:     0x5d93cbb0e812 - <std::sys::backtrace::BacktraceLock::print::DisplayBacktrace as core::fmt::Display>::fmt::h51e6a86d71d24cd6
[INFO] [stderr]                                  at /rustc/db0e836148accac8a22532e3596ac612b63c2d8e/library/std/src/sys/backtrace.rs:39:26
[INFO] [stderr]      4:     0x5d93cbb35c53 - core::fmt::rt::Argument::fmt::h7f95fe212bc7981c
[INFO] [stderr]                                  at /rustc/db0e836148accac8a22532e3596ac612b63c2d8e/library/core/src/fmt/rt.rs:181:76
[INFO] [stderr]      5:     0x5d93cbb35c53 - core::fmt::write::hc9640c8ee6dfa529
[INFO] [stderr]                                  at /rustc/db0e836148accac8a22532e3596ac612b63c2d8e/library/core/src/fmt/mod.rs:1446:25
[INFO] [stderr]      6:     0x5d93cbb0b953 - std::io::default_write_fmt::h489f78092e56cb33
[INFO] [stderr]                                  at /rustc/db0e836148accac8a22532e3596ac612b63c2d8e/library/std/src/io/mod.rs:639:11
[INFO] [stderr]      7:     0x5d93cbb0b953 - std::io::Write::write_fmt::ha466b731295e16e2
[INFO] [stderr]                                  at /rustc/db0e836148accac8a22532e3596ac612b63c2d8e/library/std/src/io/mod.rs:1914:13
[INFO] [stderr]      8:     0x5d93cbb0e662 - std::sys::backtrace::BacktraceLock::print::he15d61b85fc4723f
[INFO] [stderr]                                  at /rustc/db0e836148accac8a22532e3596ac612b63c2d8e/library/std/src/sys/backtrace.rs:42:9
[INFO] [stderr]      9:     0x5d93cbb0fd3c - std::panicking::default_hook::{{closure}}::h580f8cc7cf140448
[INFO] [stderr]                                  at /rustc/db0e836148accac8a22532e3596ac612b63c2d8e/library/std/src/panicking.rs:300:22
[INFO] [stderr]     10:     0x5d93cbb0fb3f - std::panicking::default_hook::hd2f0a15d0496ae70
[INFO] [stderr]                                  at /rustc/db0e836148accac8a22532e3596ac612b63c2d8e/library/std/src/panicking.rs:327:9
[INFO] [stderr]     11:     0x5d93cbb10833 - <alloc::boxed::Box<F,A> as core::ops::function::Fn<Args>>::call::he588b7e03188fd29
[INFO] [stderr]                                  at /rustc/db0e836148accac8a22532e3596ac612b63c2d8e/library/alloc/src/boxed.rs:1980:9
[INFO] [stderr]     12:     0x5d93cbb10833 - std::panicking::rust_panic_with_hook::hf3e9fd3faae67c64
[INFO] [stderr]                                  at /rustc/db0e836148accac8a22532e3596ac612b63c2d8e/library/std/src/panicking.rs:841:13
[INFO] [stderr]     13:     0x5d93cbb104ea - std::panicking::begin_panic_handler::{{closure}}::ha5da375413ab5cb0
[INFO] [stderr]                                  at /rustc/db0e836148accac8a22532e3596ac612b63c2d8e/library/std/src/panicking.rs:706:13
[INFO] [stderr]     14:     0x5d93cbb0ed09 - std::sys::backtrace::__rust_end_short_backtrace::h3ca5845cffc17cc5
[INFO] [stderr]                                  at /rustc/db0e836148accac8a22532e3596ac612b63c2d8e/library/std/src/sys/backtrace.rs:168:18
[INFO] [stderr]     15:     0x5d93cbb1017d - __rustc[3810acb94e8eb63a]::rust_begin_unwind
[INFO] [stderr]                                  at /rustc/db0e836148accac8a22532e3596ac612b63c2d8e/library/std/src/panicking.rs:697:5
[INFO] [stderr]     16:     0x5d93cbb33dd0 - core::panicking::panic_fmt::h02eba6ef6863b76c
[INFO] [stderr]                                  at /rustc/db0e836148accac8a22532e3596ac612b63c2d8e/library/core/src/panicking.rs:75:14
[INFO] [stderr]     17:     0x5d93cbb34236 - core::result::unwrap_failed::hd3fc386c6b0a10e0
[INFO] [stderr]                                  at /rustc/db0e836148accac8a22532e3596ac612b63c2d8e/library/core/src/result.rs:1732:5
[INFO] [stderr]     18:     0x5d93cb7f85d4 - cbindgen::bindgen::bindings::Bindings::write_to_file::hfa9f7a4a7fc86709
[INFO] [stderr]     19:     0x5d93cb80b6fe - build_script_build::main::hd306227209f21a45
[INFO] [stderr]     20:     0x5d93cb805823 - core::ops::function::FnOnce::call_once::h5137e3235b6f3079
[INFO] [stderr]     21:     0x5d93cb8053d6 - std::sys::backtrace::__rust_begin_short_backtrace::h0316467e91400f28
[INFO] [stderr]     22:     0x5d93cb812049 - std::rt::lang_start::{{closure}}::hb62d07e9d364347c
[INFO] [stderr]     23:     0x5d93cbb06f64 - core::ops::function::impls::<impl core::ops::function::FnOnce<A> for &F>::call_once::hec43454693b55475
[INFO] [stderr]                                  at /rustc/db0e836148accac8a22532e3596ac612b63c2d8e/library/core/src/ops/function.rs:284:13
[INFO] [stderr]     24:     0x5d93cbb06f64 - std::panicking::try::do_call::hdfc487435b8f345c
[INFO] [stderr]                                  at /rustc/db0e836148accac8a22532e3596ac612b63c2d8e/library/std/src/panicking.rs:589:40
[INFO] [stderr]     25:     0x5d93cbb06f64 - std::panicking::try::h179ec4f7ef1c02e8
[INFO] [stderr]                                  at /rustc/db0e836148accac8a22532e3596ac612b63c2d8e/library/std/src/panicking.rs:552:19
[INFO] [stderr]     26:     0x5d93cbb06f64 - std::panic::catch_unwind::h2389bbcd4382a090
[INFO] [stderr]                                  at /rustc/db0e836148accac8a22532e3596ac612b63c2d8e/library/std/src/panic.rs:359:14
[INFO] [stderr]     27:     0x5d93cbb06f64 - std::rt::lang_start_internal::{{closure}}::h758cd6d34a76c3e1
[INFO] [stderr]                                  at /rustc/db0e836148accac8a22532e3596ac612b63c2d8e/library/std/src/rt.rs:168:24
[INFO] [stderr]     28:     0x5d93cbb06f64 - std::panicking::try::do_call::h6ea831c856e9a21b
[INFO] [stderr]                                  at /rustc/db0e836148accac8a22532e3596ac612b63c2d8e/library/std/src/panicking.rs:589:40
[INFO] [stderr]     29:     0x5d93cbb06f64 - std::panicking::try::h40816da636dc12b7
[INFO] [stderr]                                  at /rustc/db0e836148accac8a22532e3596ac612b63c2d8e/library/std/src/panicking.rs:552:19
[INFO] [stderr]     30:     0x5d93cbb06f64 - std::panic::catch_unwind::h272aee653c3bf730
[INFO] [stderr]                                  at /rustc/db0e836148accac8a22532e3596ac612b63c2d8e/library/std/src/panic.rs:359:14
[INFO] [stderr]     31:     0x5d93cbb06f64 - std::rt::lang_start_internal::h378af902613016be
[INFO] [stderr]                                  at /rustc/db0e836148accac8a22532e3596ac612b63c2d8e/library/std/src/rt.rs:164:5
[INFO] [stderr]     32:     0x5d93cb812031 - std::rt::lang_start::hb193ad9728ad9ab8
[INFO] [stderr]     33:     0x5d93cb80b795 - main
[INFO] [stderr]     34:     0x7825dda961ca - <unknown>
[INFO] [stderr]     35:     0x7825dda9628b - __libc_start_main
[INFO] [stderr]     36:     0x5d93cb7d73b5 - _start
[INFO] [stderr]     37:                0x0 - <unknown>
[INFO] running `Command { std: "docker" "inspect" "69a63c21ef38e514d2f407af45f36ed51b21210e122d3798157496285c99c1ac", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "69a63c21ef38e514d2f407af45f36ed51b21210e122d3798157496285c99c1ac", kill_on_drop: false }`
[INFO] [stdout] 69a63c21ef38e514d2f407af45f36ed51b21210e122d3798157496285c99c1ac