[INFO] fetching crate mpv_webrpc 0.0.1... [INFO] testing mpv_webrpc-0.0.1 against beta-2025-09-21 for beta-1.91-3 [INFO] extracting crate mpv_webrpc 0.0.1 into /workspace/builds/worker-6-tc2/source [INFO] started tweaking crates.io crate mpv_webrpc 0.0.1 [INFO] finished tweaking crates.io crate mpv_webrpc 0.0.1 [INFO] tweaked toml for crates.io crate mpv_webrpc 0.0.1 written to /workspace/builds/worker-6-tc2/source/Cargo.toml [INFO] validating manifest of crates.io crate mpv_webrpc 0.0.1 on toolchain beta-2025-09-21 [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2025-09-21" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] crate crates.io crate mpv_webrpc 0.0.1 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-2025-09-21" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2025-09-21" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 81f4c75f300d0b5680b60f76ad0632e71af5a88942b104f48acc52021e535ae1 [INFO] running `Command { std: "docker" "start" "-a" "81f4c75f300d0b5680b60f76ad0632e71af5a88942b104f48acc52021e535ae1", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "81f4c75f300d0b5680b60f76ad0632e71af5a88942b104f48acc52021e535ae1", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "81f4c75f300d0b5680b60f76ad0632e71af5a88942b104f48acc52021e535ae1", kill_on_drop: false }` [INFO] [stdout] 81f4c75f300d0b5680b60f76ad0632e71af5a88942b104f48acc52021e535ae1 [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=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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2025-09-21" "build" "--frozen" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 214b282a2c250e45a0148f60a2e309c556cc7c8f68d35eaf44630c227ff6bd25 [INFO] running `Command { std: "docker" "start" "-a" "214b282a2c250e45a0148f60a2e309c556cc7c8f68d35eaf44630c227ff6bd25", kill_on_drop: false }` [INFO] [stderr] Compiling libc v0.2.71 [INFO] [stderr] Compiling cfg-if v0.1.10 [INFO] [stderr] Compiling typenum v1.12.0 [INFO] [stderr] Compiling version_check v0.9.2 [INFO] [stderr] Compiling autocfg v1.0.0 [INFO] [stderr] Compiling byteorder v1.3.4 [INFO] [stderr] Compiling proc-macro2 v0.4.30 [INFO] [stderr] Compiling log v0.4.8 [INFO] [stderr] Compiling proc-macro2 v1.0.18 [INFO] [stderr] Compiling yansi v0.5.0 [INFO] [stderr] Compiling unicode-xid v0.1.0 [INFO] [stderr] Compiling version_check v0.1.5 [INFO] [stderr] Compiling unicode-xid v0.2.0 [INFO] [stderr] Compiling syn v1.0.31 [INFO] [stderr] Compiling memchr v2.3.3 [INFO] [stderr] Compiling smallvec v1.4.0 [INFO] [stderr] Compiling matches v0.1.8 [INFO] [stderr] Compiling syn v0.15.44 [INFO] [stderr] Compiling unicode-bidi v0.3.4 [INFO] [stderr] Compiling getrandom v0.1.14 [INFO] [stderr] Compiling unicode-normalization v0.1.12 [INFO] [stderr] Compiling bitflags v1.2.1 [INFO] [stderr] Compiling subtle v2.2.3 [INFO] [stderr] Compiling serde v1.0.112 [INFO] [stderr] Compiling opaque-debug v0.2.3 [INFO] [stderr] Compiling byte-tools v0.3.1 [INFO] [stderr] Compiling subtle v1.0.0 [INFO] [stderr] Compiling unicase v1.4.2 [INFO] [stderr] Compiling block-padding v0.1.5 [INFO] [stderr] Compiling pear_codegen v0.1.4 [INFO] [stderr] Compiling httparse v1.3.4 [INFO] [stderr] Compiling num-traits v0.2.12 [INFO] [stderr] Compiling ucd-trie v0.1.3 [INFO] [stderr] Compiling percent-encoding v1.0.1 [INFO] [stderr] Compiling ppv-lite86 v0.2.8 [INFO] [stderr] Compiling quote v0.6.13 [INFO] [stderr] Compiling ryu v1.0.5 [INFO] [stderr] Compiling lazy_static v1.4.0 [INFO] [stderr] Compiling time v0.1.43 [INFO] [stderr] Compiling thread_local v1.0.1 [INFO] [stderr] Compiling pest v2.1.3 [INFO] [stderr] Compiling aho-corasick v0.7.13 [INFO] [stderr] Compiling indexmap v1.4.0 [INFO] [stderr] error: failed to run custom build command for `pear_codegen v0.1.4` [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/pear_codegen-1e579d538c908ad6/build-script-build` (exit status: 101) [INFO] [stderr] --- stderr [INFO] [stderr] Error: Pear requires a 'dev' or 'nightly' version of rustc. [INFO] [stderr] Installed version: 1.91.0 (2025-09-20) [INFO] [stderr] Minimum required: 1.31.0-nightly (2018-10-05) [INFO] [stderr] [INFO] [stderr] thread 'main' (802) panicked at /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/pear_codegen-0.1.4/build.rs:24:13: [INFO] [stderr] Aborting compilation due to incompatible compiler. [INFO] [stderr] stack backtrace: [INFO] [stderr] 0: 0x60a093dfdad2 - std::backtrace_rs::backtrace::libunwind::trace::hcab59e1e990fdc24 [INFO] [stderr] at /rustc/bb624dcb4c8ab987e10c0808d92d76f3b84dd117/library/std/src/../../backtrace/src/backtrace/libunwind.rs:117:9 [INFO] [stderr] 1: 0x60a093dfdad2 - std::backtrace_rs::backtrace::trace_unsynchronized::he24cc57f3d2f47b7 [INFO] [stderr] at /rustc/bb624dcb4c8ab987e10c0808d92d76f3b84dd117/library/std/src/../../backtrace/src/backtrace/mod.rs:66:14 [INFO] [stderr] 2: 0x60a093dfdad2 - std::sys::backtrace::_print_fmt::hf8d65ede198eeb54 [INFO] [stderr] at /rustc/bb624dcb4c8ab987e10c0808d92d76f3b84dd117/library/std/src/sys/backtrace.rs:66:9 [INFO] [stderr] 3: 0x60a093dfdad2 - ::fmt::h67edf0e4d33c343c [INFO] [stderr] at /rustc/bb624dcb4c8ab987e10c0808d92d76f3b84dd117/library/std/src/sys/backtrace.rs:39:26 [INFO] [stderr] 4: 0x60a093e0d01f - core::fmt::rt::Argument::fmt::hef94184842aeafdd [INFO] [stderr] at /rustc/bb624dcb4c8ab987e10c0808d92d76f3b84dd117/library/core/src/fmt/rt.rs:173:76 [INFO] [stderr] 5: 0x60a093e0d01f - core::fmt::write::hcf0c66b48a8fa606 [INFO] [stderr] at /rustc/bb624dcb4c8ab987e10c0808d92d76f3b84dd117/library/core/src/fmt/mod.rs:1468:25 [INFO] [stderr] 6: 0x60a093dd3601 - std::io::default_write_fmt::h1ecb8c7cfa7da481 [INFO] [stderr] at /rustc/bb624dcb4c8ab987e10c0808d92d76f3b84dd117/library/std/src/io/mod.rs:639:11 [INFO] [stderr] 7: 0x60a093dd3601 - std::io::Write::write_fmt::h051fe4a9e4fdbf48 [INFO] [stderr] at /rustc/bb624dcb4c8ab987e10c0808d92d76f3b84dd117/library/std/src/io/mod.rs:1954:13 [INFO] [stderr] 8: 0x60a093ddd012 - std::sys::backtrace::BacktraceLock::print::h07e5435aa717b414 [INFO] [stderr] at /rustc/bb624dcb4c8ab987e10c0808d92d76f3b84dd117/library/std/src/sys/backtrace.rs:42:9 [INFO] [stderr] 9: 0x60a093ddecfc - std::panicking::default_hook::{{closure}}::h91001850288db5f7 [INFO] [stderr] at /rustc/bb624dcb4c8ab987e10c0808d92d76f3b84dd117/library/std/src/panicking.rs:301:27 [INFO] [stderr] 10: 0x60a093ddeb56 - std::panicking::default_hook::h2346dbb704ef5512 [INFO] [stderr] at /rustc/bb624dcb4c8ab987e10c0808d92d76f3b84dd117/library/std/src/panicking.rs:328:9 [INFO] [stderr] 11: 0x60a093ddf385 - std::panicking::panic_with_hook::hd2b063a6090d23a4 [INFO] [stderr] at /rustc/bb624dcb4c8ab987e10c0808d92d76f3b84dd117/library/std/src/panicking.rs:834:13 [INFO] [stderr] 12: 0x60a093ddea4c - std::panicking::begin_panic::{{closure}}::h03764aec75fd6fbf [INFO] [stderr] at /rustc/bb624dcb4c8ab987e10c0808d92d76f3b84dd117/library/std/src/panicking.rs:771:9 [INFO] [stderr] 13: 0x60a093ddd159 - std::sys::backtrace::__rust_end_short_backtrace::h840811b1dfa0dad5 [INFO] [stderr] at /rustc/bb624dcb4c8ab987e10c0808d92d76f3b84dd117/library/std/src/sys/backtrace.rs:174:18 [INFO] [stderr] 14: 0x60a093ddea1c - std::panicking::begin_panic::hcf2bdd8da61aefe8 [INFO] [stderr] at /rustc/bb624dcb4c8ab987e10c0808d92d76f3b84dd117/library/std/src/panicking.rs:770:5 [INFO] [stderr] 15: 0x60a093db486f - build_script_build::main::ha33630436b150b29 [INFO] [stderr] 16: 0x60a093db4f53 - core::ops::function::FnOnce::call_once::h7d7cdf557109dc47 [INFO] [stderr] 17: 0x60a093db4cf6 - std::sys::backtrace::__rust_begin_short_backtrace::hd4ca693de37d2a65 [INFO] [stderr] 18: 0x60a093db4cd9 - std::rt::lang_start::{{closure}}::hf9ed1e84da9d33bb [INFO] [stderr] 19: 0x60a093dd4fe0 - core::ops::function::impls:: for &F>::call_once::h4967fb77e0dfb65c [INFO] [stderr] at /rustc/bb624dcb4c8ab987e10c0808d92d76f3b84dd117/library/core/src/ops/function.rs:287:21 [INFO] [stderr] 20: 0x60a093dd4fe0 - std::panicking::catch_unwind::do_call::hf7e87675c3e14c23 [INFO] [stderr] at /rustc/bb624dcb4c8ab987e10c0808d92d76f3b84dd117/library/std/src/panicking.rs:590:40 [INFO] [stderr] 21: 0x60a093dd4fe0 - std::panicking::catch_unwind::h26f0e342004b5114 [INFO] [stderr] at /rustc/bb624dcb4c8ab987e10c0808d92d76f3b84dd117/library/std/src/panicking.rs:553:19 [INFO] [stderr] 22: 0x60a093dd4fe0 - std::panic::catch_unwind::h9ee33ca17775d897 [INFO] [stderr] at /rustc/bb624dcb4c8ab987e10c0808d92d76f3b84dd117/library/std/src/panic.rs:359:14 [INFO] [stderr] 23: 0x60a093dd4fe0 - std::rt::lang_start_internal::{{closure}}::h243ba3495fa13cf8 [INFO] [stderr] at /rustc/bb624dcb4c8ab987e10c0808d92d76f3b84dd117/library/std/src/rt.rs:175:24 [INFO] [stderr] 24: 0x60a093dd4fe0 - std::panicking::catch_unwind::do_call::h819db0a7788e7259 [INFO] [stderr] at /rustc/bb624dcb4c8ab987e10c0808d92d76f3b84dd117/library/std/src/panicking.rs:590:40 [INFO] [stderr] 25: 0x60a093dd4fe0 - std::panicking::catch_unwind::h23e08fb4a7b9f405 [INFO] [stderr] at /rustc/bb624dcb4c8ab987e10c0808d92d76f3b84dd117/library/std/src/panicking.rs:553:19 [INFO] [stderr] 26: 0x60a093dd4fe0 - std::panic::catch_unwind::h7ca3d9eabb6135ff [INFO] [stderr] at /rustc/bb624dcb4c8ab987e10c0808d92d76f3b84dd117/library/std/src/panic.rs:359:14 [INFO] [stderr] 27: 0x60a093dd4fe0 - std::rt::lang_start_internal::h06ad7395f4fda8d7 [INFO] [stderr] at /rustc/bb624dcb4c8ab987e10c0808d92d76f3b84dd117/library/std/src/rt.rs:171:5 [INFO] [stderr] 28: 0x60a093db4cc1 - std::rt::lang_start::h50a455d0cc4ad9c7 [INFO] [stderr] 29: 0x60a093db7b05 - main [INFO] [stderr] 30: 0x7cf8617ac1ca - [INFO] [stderr] 31: 0x7cf8617ac28b - __libc_start_main [INFO] [stderr] 32: 0x60a093db4085 - _start [INFO] [stderr] 33: 0x0 - [INFO] [stderr] warning: build failed, waiting for other jobs to finish... [INFO] running `Command { std: "docker" "inspect" "214b282a2c250e45a0148f60a2e309c556cc7c8f68d35eaf44630c227ff6bd25", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "214b282a2c250e45a0148f60a2e309c556cc7c8f68d35eaf44630c227ff6bd25", kill_on_drop: false }` [INFO] [stdout] 214b282a2c250e45a0148f60a2e309c556cc7c8f68d35eaf44630c227ff6bd25