[INFO] cloning repository https://github.com/thooton/mio_c [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/thooton/mio_c" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fthooton%2Fmio_c", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fthooton%2Fmio_c'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] 99ea2d29bff6ba815d1747fccf49efd6ee9e7f6c [INFO] documenting thooton/mio_c against beta-2025-04-13 for beta-1.87-rustdoc-1 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fthooton%2Fmio_c" "/workspace/builds/worker-4-tc2/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-4-tc2/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/thooton/mio_c on toolchain beta-2025-04-13 [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2025-04-13" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking git repo https://github.com/thooton/mio_c [INFO] finished tweaking git repo https://github.com/thooton/mio_c [INFO] tweaked toml for git repo https://github.com/thooton/mio_c written to /workspace/builds/worker-4-tc2/source/Cargo.toml [INFO] crate git repo https://github.com/thooton/mio_c 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" "+beta-2025-04-13" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] [stderr] Downloading crates ... [INFO] [stderr] Downloaded cbindgen v0.20.0 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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:b0b074c097205a61b89e8ad263052f976b2b332c4dc5f02aef1fe52501660d6e" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2025-04-13" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 1b0173fdf8203e34444db10ab3c37570008e8f4bbd48232cd1d79d8df2bbdda6 [INFO] running `Command { std: "docker" "start" "-a" "1b0173fdf8203e34444db10ab3c37570008e8f4bbd48232cd1d79d8df2bbdda6", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "1b0173fdf8203e34444db10ab3c37570008e8f4bbd48232cd1d79d8df2bbdda6", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "1b0173fdf8203e34444db10ab3c37570008e8f4bbd48232cd1d79d8df2bbdda6", kill_on_drop: false }` [INFO] [stdout] 1b0173fdf8203e34444db10ab3c37570008e8f4bbd48232cd1d79d8df2bbdda6 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-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" "+beta-2025-04-13" "doc" "--frozen" "--no-deps" "--document-private-items" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 5808a6229d257f3fcb98eafe8a7d92edb35258df1c4f38cd029fbb8c749f4f25 [INFO] running `Command { std: "docker" "start" "-a" "5808a6229d257f3fcb98eafe8a7d92edb35258df1c4f38cd029fbb8c749f4f25", kill_on_drop: false }` [INFO] [stderr] Compiling proc-macro2 v1.0.49 [INFO] [stderr] Compiling libc v0.2.139 [INFO] [stderr] Compiling quote v1.0.23 [INFO] [stderr] Compiling unicode-ident v1.0.6 [INFO] [stderr] Compiling syn v1.0.107 [INFO] [stderr] Compiling log v0.4.17 [INFO] [stderr] Compiling serde_derive v1.0.152 [INFO] [stderr] Compiling serde v1.0.152 [INFO] [stderr] Compiling cfg-if v1.0.0 [INFO] [stderr] Compiling autocfg v1.1.0 [INFO] [stderr] Compiling unicode-width v0.1.10 [INFO] [stderr] Compiling serde_json v1.0.91 [INFO] [stderr] Compiling cbindgen v0.20.0 [INFO] [stderr] Compiling bitflags v1.3.2 [INFO] [stderr] Compiling fastrand v1.8.0 [INFO] [stderr] Compiling vec_map v0.8.2 [INFO] [stderr] Compiling textwrap v0.11.0 [INFO] [stderr] Compiling remove_dir_all v0.5.3 [INFO] [stderr] Compiling ryu v1.0.12 [INFO] [stderr] Compiling strsim v0.8.0 [INFO] [stderr] Compiling ansi_term v0.12.1 [INFO] [stderr] Compiling itoa v1.0.5 [INFO] [stderr] Compiling unicode-segmentation v1.10.0 [INFO] [stderr] Compiling hashbrown v0.12.3 [INFO] [stderr] Compiling indexmap v1.9.2 [INFO] [stderr] Compiling heck v0.3.3 [INFO] [stderr] Compiling atty v0.2.14 [INFO] [stderr] Compiling tempfile v3.3.0 [INFO] [stderr] Compiling mio v0.8.5 [INFO] [stderr] Compiling clap v2.34.0 [INFO] [stderr] Compiling toml v0.5.10 [INFO] [stderr] Compiling mio_c v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: function `opaqueFor` should have a snake case name [INFO] [stdout] --> build.rs:25:4 [INFO] [stdout] | [INFO] [stdout] 25 | fn opaqueFor() -> String { [INFO] [stdout] | ^^^^^^^^^ help: convert the identifier to snake case: `opaque_for` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(non_snake_case)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] error: failed to run custom build command for `mio_c 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/mio_c-a25115c29e72a22e/build-script-build` (exit status: 101) [INFO] [stderr] --- stderr [INFO] [stderr] [INFO] [stderr] thread 'main' panicked at build.rs:58:10: [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: 0x5e933ff5dac2 - std::backtrace_rs::backtrace::libunwind::trace::h97da83aab53f337d [INFO] [stderr] at /rustc/a5948295b4bf4c6199457f1227e5d8f6e6b9f948/library/std/src/../../backtrace/src/backtrace/libunwind.rs:117:9 [INFO] [stderr] 1: 0x5e933ff5dac2 - std::backtrace_rs::backtrace::trace_unsynchronized::h07d9fad959b0b0c4 [INFO] [stderr] at /rustc/a5948295b4bf4c6199457f1227e5d8f6e6b9f948/library/std/src/../../backtrace/src/backtrace/mod.rs:66:14 [INFO] [stderr] 2: 0x5e933ff5dac2 - std::sys::backtrace::_print_fmt::h73b6844d523a91e6 [INFO] [stderr] at /rustc/a5948295b4bf4c6199457f1227e5d8f6e6b9f948/library/std/src/sys/backtrace.rs:66:9 [INFO] [stderr] 3: 0x5e933ff5dac2 - ::fmt::had50d3dbab4f9a49 [INFO] [stderr] at /rustc/a5948295b4bf4c6199457f1227e5d8f6e6b9f948/library/std/src/sys/backtrace.rs:39:26 [INFO] [stderr] 4: 0x5e933ff86133 - core::fmt::rt::Argument::fmt::h96dc2668ac588484 [INFO] [stderr] at /rustc/a5948295b4bf4c6199457f1227e5d8f6e6b9f948/library/core/src/fmt/rt.rs:184:76 [INFO] [stderr] 5: 0x5e933ff86133 - core::fmt::write::h3c068850dd3fcd11 [INFO] [stderr] at /rustc/a5948295b4bf4c6199457f1227e5d8f6e6b9f948/library/core/src/fmt/mod.rs:1480:21 [INFO] [stderr] 6: 0x5e933ff5b033 - std::io::default_write_fmt::hfb3376268ea3ee75 [INFO] [stderr] at /rustc/a5948295b4bf4c6199457f1227e5d8f6e6b9f948/library/std/src/io/mod.rs:639:11 [INFO] [stderr] 7: 0x5e933ff5b033 - std::io::Write::write_fmt::h819ce08a32b4f9f7 [INFO] [stderr] at /rustc/a5948295b4bf4c6199457f1227e5d8f6e6b9f948/library/std/src/io/mod.rs:1914:13 [INFO] [stderr] 8: 0x5e933ff5d912 - std::sys::backtrace::BacktraceLock::print::h160d33c700b1accf [INFO] [stderr] at /rustc/a5948295b4bf4c6199457f1227e5d8f6e6b9f948/library/std/src/sys/backtrace.rs:42:9 [INFO] [stderr] 9: 0x5e933ff5ea72 - std::panicking::default_hook::{{closure}}::hdccf862335980e92 [INFO] [stderr] at /rustc/a5948295b4bf4c6199457f1227e5d8f6e6b9f948/library/std/src/panicking.rs:300:22 [INFO] [stderr] 10: 0x5e933ff5e875 - std::panicking::default_hook::h92ea296b4f4c5d78 [INFO] [stderr] at /rustc/a5948295b4bf4c6199457f1227e5d8f6e6b9f948/library/std/src/panicking.rs:327:9 [INFO] [stderr] 11: 0x5e933ff5f412 - std::panicking::rust_panic_with_hook::h53eb519a340d7090 [INFO] [stderr] at /rustc/a5948295b4bf4c6199457f1227e5d8f6e6b9f948/library/std/src/panicking.rs:833:13 [INFO] [stderr] 12: 0x5e933ff5f1ba - std::panicking::begin_panic_handler::{{closure}}::h1b012222d781940d [INFO] [stderr] at /rustc/a5948295b4bf4c6199457f1227e5d8f6e6b9f948/library/std/src/panicking.rs:706:13 [INFO] [stderr] 13: 0x5e933ff5dfb9 - std::sys::backtrace::__rust_end_short_backtrace::hb1c00a6a74936045 [INFO] [stderr] at /rustc/a5948295b4bf4c6199457f1227e5d8f6e6b9f948/library/std/src/sys/backtrace.rs:168:18 [INFO] [stderr] 14: 0x5e933ff5ee4d - __rustc[3fad54a3e94379e3]::rust_begin_unwind [INFO] [stderr] at /rustc/a5948295b4bf4c6199457f1227e5d8f6e6b9f948/library/std/src/panicking.rs:697:5 [INFO] [stderr] 15: 0x5e933fc583d0 - core::panicking::panic_fmt::h5646b0c12be1dead [INFO] [stderr] at /rustc/a5948295b4bf4c6199457f1227e5d8f6e6b9f948/library/core/src/panicking.rs:75:14 [INFO] [stderr] 16: 0x5e933fc58866 - core::result::unwrap_failed::hc06d646aff6e2a9a [INFO] [stderr] at /rustc/a5948295b4bf4c6199457f1227e5d8f6e6b9f948/library/core/src/result.rs:1704:5 [INFO] [stderr] 17: 0x5e933fc695c9 - build_script_build::main::h652cd40398b5a45c [INFO] [stderr] 18: 0x5e933fc61363 - core::ops::function::FnOnce::call_once::h6a7886efa7016e9e [INFO] [stderr] 19: 0x5e933fc5a1e6 - std::sys::backtrace::__rust_begin_short_backtrace::h325899b710fd0e14 [INFO] [stderr] 20: 0x5e933fc5a189 - std::rt::lang_start::{{closure}}::h702b41ae52fe854c [INFO] [stderr] 21: 0x5e933ff57400 - core::ops::function::impls:: for &F>::call_once::h76d4710199b6d3ec [INFO] [stderr] at /rustc/a5948295b4bf4c6199457f1227e5d8f6e6b9f948/library/core/src/ops/function.rs:284:13 [INFO] [stderr] 22: 0x5e933ff57400 - std::panicking::try::do_call::hed7976834a7187c4 [INFO] [stderr] at /rustc/a5948295b4bf4c6199457f1227e5d8f6e6b9f948/library/std/src/panicking.rs:589:40 [INFO] [stderr] 23: 0x5e933ff57400 - std::panicking::try::h4482392c0aab6c40 [INFO] [stderr] at /rustc/a5948295b4bf4c6199457f1227e5d8f6e6b9f948/library/std/src/panicking.rs:552:19 [INFO] [stderr] 24: 0x5e933ff57400 - std::panic::catch_unwind::h57eb8bdc88215c08 [INFO] [stderr] at /rustc/a5948295b4bf4c6199457f1227e5d8f6e6b9f948/library/std/src/panic.rs:359:14 [INFO] [stderr] 25: 0x5e933ff57400 - std::rt::lang_start_internal::{{closure}}::h582aca8f991cee01 [INFO] [stderr] at /rustc/a5948295b4bf4c6199457f1227e5d8f6e6b9f948/library/std/src/rt.rs:168:24 [INFO] [stderr] 26: 0x5e933ff57400 - std::panicking::try::do_call::hd9d0541c1412e9b0 [INFO] [stderr] at /rustc/a5948295b4bf4c6199457f1227e5d8f6e6b9f948/library/std/src/panicking.rs:589:40 [INFO] [stderr] 27: 0x5e933ff57400 - std::panicking::try::h6467744ef028cbc9 [INFO] [stderr] at /rustc/a5948295b4bf4c6199457f1227e5d8f6e6b9f948/library/std/src/panicking.rs:552:19 [INFO] [stderr] 28: 0x5e933ff57400 - std::panic::catch_unwind::h88462888c16be0b7 [INFO] [stderr] at /rustc/a5948295b4bf4c6199457f1227e5d8f6e6b9f948/library/std/src/panic.rs:359:14 [INFO] [stderr] 29: 0x5e933ff57400 - std::rt::lang_start_internal::h79a5f970fb99441e [INFO] [stderr] at /rustc/a5948295b4bf4c6199457f1227e5d8f6e6b9f948/library/std/src/rt.rs:164:5 [INFO] [stderr] 30: 0x5e933fc5a171 - std::rt::lang_start::h71b0880977f8dc07 [INFO] [stderr] 31: 0x5e933fc69815 - main [INFO] [stderr] 32: 0x72c9605541ca - [INFO] [stderr] 33: 0x72c96055428b - __libc_start_main [INFO] [stderr] 34: 0x5e933fc58f55 - _start [INFO] [stderr] 35: 0x0 - [INFO] running `Command { std: "docker" "inspect" "5808a6229d257f3fcb98eafe8a7d92edb35258df1c4f38cd029fbb8c749f4f25", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "5808a6229d257f3fcb98eafe8a7d92edb35258df1c4f38cd029fbb8c749f4f25", kill_on_drop: false }` [INFO] [stdout] 5808a6229d257f3fcb98eafe8a7d92edb35258df1c4f38cd029fbb8c749f4f25