[INFO] fetching crate risotto 0.6.0... [INFO] testing risotto-0.6.0 against beta-2025-10-28 for beta-1.92-2 [INFO] extracting crate risotto 0.6.0 into /workspace/builds/worker-0-tc2/source [INFO] started tweaking crates.io crate risotto 0.6.0 [INFO] finished tweaking crates.io crate risotto 0.6.0 [INFO] tweaked toml for crates.io crate risotto 0.6.0 written to /workspace/builds/worker-0-tc2/source/Cargo.toml [INFO] validating manifest of crates.io crate risotto 0.6.0 on toolchain beta-2025-10-28 [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2025-10-28" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] crate crates.io crate risotto 0.6.0 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" "+beta-2025-10-28" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2025-10-28" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 497c6cb0e62e2c65b902b6235b367ade804a8adf2d0a14027c3aa5df48b5f8b9 [INFO] running `Command { std: "docker" "start" "-a" "497c6cb0e62e2c65b902b6235b367ade804a8adf2d0a14027c3aa5df48b5f8b9", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "497c6cb0e62e2c65b902b6235b367ade804a8adf2d0a14027c3aa5df48b5f8b9", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "497c6cb0e62e2c65b902b6235b367ade804a8adf2d0a14027c3aa5df48b5f8b9", kill_on_drop: false }` [INFO] [stdout] 497c6cb0e62e2c65b902b6235b367ade804a8adf2d0a14027c3aa5df48b5f8b9 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2025-10-28" "build" "--frozen" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 155e30d21d3adedb077e2f5e0b6ecb18e33ad9dda72aae099311b4759f3d9a01 [INFO] running `Command { std: "docker" "start" "-a" "155e30d21d3adedb077e2f5e0b6ecb18e33ad9dda72aae099311b4759f3d9a01", kill_on_drop: false }` [INFO] [stderr] Compiling syn v2.0.106 [INFO] [stderr] Compiling libc v0.2.176 [INFO] [stderr] Compiling find-msvc-tools v0.1.3 [INFO] [stderr] Compiling serde v1.0.228 [INFO] [stderr] Compiling libloading v0.8.8 [INFO] [stderr] Compiling fs_extra v1.3.0 [INFO] [stderr] Compiling dunce v1.0.5 [INFO] [stderr] Compiling indexmap v2.11.4 [INFO] [stderr] Compiling aws-lc-rs v1.14.1 [INFO] [stderr] Compiling rustls-pki-types v1.12.0 [INFO] [stderr] Compiling rustls v0.23.32 [INFO] [stderr] Compiling aho-corasick v1.1.3 [INFO] [stderr] Compiling memchr v2.7.6 [INFO] [stderr] Compiling winnow v0.7.13 [INFO] [stderr] Compiling subtle v2.6.1 [INFO] [stderr] Compiling toml_datetime v0.7.2 [INFO] [stderr] Compiling simd-adler32 v0.3.7 [INFO] [stderr] Compiling fastrand v2.3.0 [INFO] [stderr] Compiling ahash v0.8.12 [INFO] [stderr] Compiling crc32fast v1.5.0 [INFO] [stderr] Compiling encoding_rs v0.8.35 [INFO] [stderr] Compiling anstyle v1.0.13 [INFO] [stderr] Compiling rustls-native-certs v0.8.1 [INFO] [stderr] Compiling webpki-roots v1.0.2 [INFO] [stderr] Compiling futures-lite v2.6.1 [INFO] [stderr] Compiling metrics v0.24.2 [INFO] [stderr] Compiling miniz_oxide v0.8.9 [INFO] [stderr] Compiling anstream v0.6.21 [INFO] [stderr] Compiling rdkafka-sys v4.9.0+2.10.0 [INFO] [stderr] Compiling capnp v0.21.6 [INFO] [stderr] Compiling hashbrown v0.15.5 [INFO] [stderr] Compiling itertools v0.14.0 [INFO] [stderr] Compiling clap_builder v4.5.48 [INFO] [stderr] Compiling crossbeam-epoch v0.9.18 [INFO] [stderr] Compiling virtue v0.0.18 [INFO] [stderr] Compiling jobserver v0.1.34 [INFO] [stderr] Compiling parking_lot_core v0.9.12 [INFO] [stderr] Compiling cc v1.2.40 [INFO] [stderr] Compiling parking_lot v0.12.5 [INFO] [stderr] Compiling socket2 v0.6.0 [INFO] [stderr] Compiling signal-hook-registry v1.4.6 [INFO] [stderr] Compiling mio v1.0.4 [INFO] [stderr] Compiling getrandom v0.2.16 [INFO] [stderr] Compiling regex-automata v0.4.11 [INFO] [stderr] Compiling getrandom v0.3.3 [INFO] [stderr] Compiling flate2 v1.1.3 [INFO] [stderr] Compiling toml_parser v1.0.3 [INFO] [stderr] Compiling rand_core v0.9.3 [INFO] [stderr] Compiling cmake v0.1.54 [INFO] [stderr] Compiling sketches-ddsketch v0.3.0 [INFO] [stderr] Compiling bincode_derive v2.0.1 [INFO] [stderr] Compiling rand_chacha v0.9.0 [INFO] [stderr] Compiling capnpc v0.21.4 [INFO] [stderr] Compiling rand_xoshiro v0.7.0 [INFO] [stderr] Compiling toml_edit v0.23.6 [INFO] [stderr] Compiling rand v0.9.2 [INFO] [stderr] Compiling serde_json v1.0.145 [INFO] [stderr] Compiling tracing-log v0.2.0 [INFO] [stderr] Compiling aws-lc-sys v0.32.2 [INFO] [stderr] Compiling ring v0.17.14 [INFO] [stderr] Compiling bzip2-sys v0.1.13+1.0.8 [INFO] [stderr] Compiling proc-macro-crate v3.4.0 [INFO] [stderr] Compiling libz-sys v1.1.22 [INFO] [stderr] Compiling unty v0.0.4 [INFO] [stderr] Compiling nu-ansi-term v0.50.1 [INFO] [stderr] Compiling regex v1.11.3 [INFO] [stderr] Compiling bzip2 v0.4.4 [INFO] [stderr] Compiling risotto v0.6.0 (/opt/rustwide/workdir) [INFO] [stderr] error: failed to run custom build command for `risotto v0.6.0 (/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/risotto-999ce8a1659bba6d/build-script-build` (exit status: 101) [INFO] [stderr] --- stderr [INFO] [stderr] could not open file "src/update_capnp.rs" for writing: Read-only file system (os error 30) [INFO] [stderr] [INFO] [stderr] thread 'main' (1685) panicked at build.rs:9:10: [INFO] [stderr] capnp compiles: Error { kind: Failed, extra: "Error while trying to execute `capnp compile`: Failed: Read-only file system (os error 30)." } [INFO] [stderr] stack backtrace: [INFO] [stderr] 0: 0x56a0966f7202 - std::backtrace_rs::backtrace::libunwind::trace::h16acf28769fcd909 [INFO] [stderr] at /rustc/3b4dd9bf1410f8da6329baa36ce5e37673cbbd1f/library/std/src/../../backtrace/src/backtrace/libunwind.rs:117:9 [INFO] [stderr] 1: 0x56a0966f7202 - std::backtrace_rs::backtrace::trace_unsynchronized::hb5541aa5d4f92513 [INFO] [stderr] at /rustc/3b4dd9bf1410f8da6329baa36ce5e37673cbbd1f/library/std/src/../../backtrace/src/backtrace/mod.rs:66:14 [INFO] [stderr] 2: 0x56a0966f7202 - std::sys::backtrace::_print_fmt::h8ac8268cb667a306 [INFO] [stderr] at /rustc/3b4dd9bf1410f8da6329baa36ce5e37673cbbd1f/library/std/src/sys/backtrace.rs:66:9 [INFO] [stderr] 3: 0x56a0966f7202 - ::fmt::h47627beda0767f4c [INFO] [stderr] at /rustc/3b4dd9bf1410f8da6329baa36ce5e37673cbbd1f/library/std/src/sys/backtrace.rs:39:26 [INFO] [stderr] 4: 0x56a096707fdf - core::fmt::rt::Argument::fmt::h686a01ad57c1c92a [INFO] [stderr] at /rustc/3b4dd9bf1410f8da6329baa36ce5e37673cbbd1f/library/core/src/fmt/rt.rs:173:76 [INFO] [stderr] 5: 0x56a096707fdf - core::fmt::write::h8a63064c67176fd8 [INFO] [stderr] at /rustc/3b4dd9bf1410f8da6329baa36ce5e37673cbbd1f/library/core/src/fmt/mod.rs:1469:25 [INFO] [stderr] 6: 0x56a0966ca863 - std::io::default_write_fmt::hc257f38f86d39af6 [INFO] [stderr] at /rustc/3b4dd9bf1410f8da6329baa36ce5e37673cbbd1f/library/std/src/io/mod.rs:639:11 [INFO] [stderr] 7: 0x56a0966ca863 - std::io::Write::write_fmt::h5e9b646cef91150b [INFO] [stderr] at /rustc/3b4dd9bf1410f8da6329baa36ce5e37673cbbd1f/library/std/src/io/mod.rs:1954:13 [INFO] [stderr] 8: 0x56a0966d48a2 - std::sys::backtrace::BacktraceLock::print::h4634d27c0afbaebb [INFO] [stderr] at /rustc/3b4dd9bf1410f8da6329baa36ce5e37673cbbd1f/library/std/src/sys/backtrace.rs:42:9 [INFO] [stderr] 9: 0x56a0966d6aec - std::panicking::default_hook::{{closure}}::h23e0299d4738b766 [INFO] [stderr] at /rustc/3b4dd9bf1410f8da6329baa36ce5e37673cbbd1f/library/std/src/panicking.rs:301:27 [INFO] [stderr] 10: 0x56a0966d6946 - std::panicking::default_hook::hfeec6294e8751b62 [INFO] [stderr] at /rustc/3b4dd9bf1410f8da6329baa36ce5e37673cbbd1f/library/std/src/panicking.rs:328:9 [INFO] [stderr] 11: 0x56a0966d70c5 - std::panicking::panic_with_hook::hd57cd463d793ed79 [INFO] [stderr] at /rustc/3b4dd9bf1410f8da6329baa36ce5e37673cbbd1f/library/std/src/panicking.rs:834:13 [INFO] [stderr] 12: 0x56a0966d6f5a - std::panicking::panic_handler::{{closure}}::hddd6216c3fddee3b [INFO] [stderr] at /rustc/3b4dd9bf1410f8da6329baa36ce5e37673cbbd1f/library/std/src/panicking.rs:707:13 [INFO] [stderr] 13: 0x56a0966d49d9 - std::sys::backtrace::__rust_end_short_backtrace::h5e7a56f283378525 [INFO] [stderr] at /rustc/3b4dd9bf1410f8da6329baa36ce5e37673cbbd1f/library/std/src/sys/backtrace.rs:174:18 [INFO] [stderr] 14: 0x56a0966be65d - __rustc[256c90bb7e548b45]::rust_begin_unwind [INFO] [stderr] at /rustc/3b4dd9bf1410f8da6329baa36ce5e37673cbbd1f/library/std/src/panicking.rs:698:5 [INFO] [stderr] 15: 0x56a09670fb50 - core::panicking::panic_fmt::hf19c198748ef6a95 [INFO] [stderr] at /rustc/3b4dd9bf1410f8da6329baa36ce5e37673cbbd1f/library/core/src/panicking.rs:80:14 [INFO] [stderr] 16: 0x56a09670eea6 - core::result::unwrap_failed::he81173b5792ad6b0 [INFO] [stderr] at /rustc/3b4dd9bf1410f8da6329baa36ce5e37673cbbd1f/library/core/src/result.rs:1862:5 [INFO] [stderr] 17: 0x56a096683739 - core::result::Result::expect::h5a9372c621450cd1 [INFO] [stderr] 18: 0x56a09661a15c - build_script_build::main::h74b96184c02b7f86 [INFO] [stderr] 19: 0x56a09661a243 - core::ops::function::FnOnce::call_once::h9ceae6d1949ba76b [INFO] [stderr] 20: 0x56a09661a1e6 - std::sys::backtrace::__rust_begin_short_backtrace::hf0847beb213b3a28 [INFO] [stderr] 21: 0x56a09661a1c9 - std::rt::lang_start::{{closure}}::h255630ffc557d38f [INFO] [stderr] 22: 0x56a0966cbca0 - core::ops::function::impls:: for &F>::call_once::hdf957eac011d0136 [INFO] [stderr] at /rustc/3b4dd9bf1410f8da6329baa36ce5e37673cbbd1f/library/core/src/ops/function.rs:287:21 [INFO] [stderr] 23: 0x56a0966cbca0 - std::panicking::catch_unwind::do_call::h9ff550f7799115e1 [INFO] [stderr] at /rustc/3b4dd9bf1410f8da6329baa36ce5e37673cbbd1f/library/std/src/panicking.rs:590:40 [INFO] [stderr] 24: 0x56a0966cbca0 - std::panicking::catch_unwind::ha7ce46787bb12905 [INFO] [stderr] at /rustc/3b4dd9bf1410f8da6329baa36ce5e37673cbbd1f/library/std/src/panicking.rs:553:19 [INFO] [stderr] 25: 0x56a0966cbca0 - std::panic::catch_unwind::h625b36596def7d39 [INFO] [stderr] at /rustc/3b4dd9bf1410f8da6329baa36ce5e37673cbbd1f/library/std/src/panic.rs:359:14 [INFO] [stderr] 26: 0x56a0966cbca0 - std::rt::lang_start_internal::{{closure}}::h4cbc9430de699e2c [INFO] [stderr] at /rustc/3b4dd9bf1410f8da6329baa36ce5e37673cbbd1f/library/std/src/rt.rs:175:24 [INFO] [stderr] 27: 0x56a0966cbca0 - std::panicking::catch_unwind::do_call::h5af2f11409a22e3e [INFO] [stderr] at /rustc/3b4dd9bf1410f8da6329baa36ce5e37673cbbd1f/library/std/src/panicking.rs:590:40 [INFO] [stderr] 28: 0x56a0966cbca0 - std::panicking::catch_unwind::hf64cf7b0d8070f52 [INFO] [stderr] at /rustc/3b4dd9bf1410f8da6329baa36ce5e37673cbbd1f/library/std/src/panicking.rs:553:19 [INFO] [stderr] 29: 0x56a0966cbca0 - std::panic::catch_unwind::h480b74763390cdcf [INFO] [stderr] at /rustc/3b4dd9bf1410f8da6329baa36ce5e37673cbbd1f/library/std/src/panic.rs:359:14 [INFO] [stderr] 30: 0x56a0966cbca0 - std::rt::lang_start_internal::h4b3d04f698aef094 [INFO] [stderr] at /rustc/3b4dd9bf1410f8da6329baa36ce5e37673cbbd1f/library/std/src/rt.rs:171:5 [INFO] [stderr] 31: 0x56a09661a1b1 - std::rt::lang_start::hcb610edabb56d81e [INFO] [stderr] 32: 0x56a09661a765 - main [INFO] [stderr] 33: 0x7ee42ccc01ca - [INFO] [stderr] 34: 0x7ee42ccc028b - __libc_start_main [INFO] [stderr] 35: 0x56a096619fc5 - _start [INFO] [stderr] 36: 0x0 - [INFO] [stderr] warning: build failed, waiting for other jobs to finish... [INFO] running `Command { std: "docker" "inspect" "155e30d21d3adedb077e2f5e0b6ecb18e33ad9dda72aae099311b4759f3d9a01", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "155e30d21d3adedb077e2f5e0b6ecb18e33ad9dda72aae099311b4759f3d9a01", kill_on_drop: false }` [INFO] [stdout] 155e30d21d3adedb077e2f5e0b6ecb18e33ad9dda72aae099311b4759f3d9a01