[INFO] fetching crate dexterous_developer_dylib_runner 0.4.0-alpha.3... [INFO] testing dexterous_developer_dylib_runner-0.4.0-alpha.3 against beta-2025-09-21 for beta-1.91-3 [INFO] extracting crate dexterous_developer_dylib_runner 0.4.0-alpha.3 into /workspace/builds/worker-0-tc2/source [INFO] started tweaking crates.io crate dexterous_developer_dylib_runner 0.4.0-alpha.3 [INFO] finished tweaking crates.io crate dexterous_developer_dylib_runner 0.4.0-alpha.3 [INFO] tweaked toml for crates.io crate dexterous_developer_dylib_runner 0.4.0-alpha.3 written to /workspace/builds/worker-0-tc2/source/Cargo.toml [INFO] validating manifest of crates.io crate dexterous_developer_dylib_runner 0.4.0-alpha.3 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] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2025-09-21" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] Updating crates.io index [INFO] [stderr] Locking 308 packages to latest compatible versions [INFO] [stderr] Adding notify v6.1.1 (available: v8.2.0) [INFO] [stderr] Adding thiserror v1.0.69 (available: v2.0.17) [INFO] [stderr] Adding tokio-tungstenite v0.23.1 (available: v0.28.0) [INFO] [stderr] Adding which v6.0.3 (available: v8.0.0) [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-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2025-09-21" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 12736cdc95dc7a0c7d04db4241235dd6ebcc03f00505bdb51aea8d61ecf8bc64 [INFO] running `Command { std: "docker" "start" "-a" "12736cdc95dc7a0c7d04db4241235dd6ebcc03f00505bdb51aea8d61ecf8bc64", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "12736cdc95dc7a0c7d04db4241235dd6ebcc03f00505bdb51aea8d61ecf8bc64", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "12736cdc95dc7a0c7d04db4241235dd6ebcc03f00505bdb51aea8d61ecf8bc64", kill_on_drop: false }` [INFO] [stdout] 12736cdc95dc7a0c7d04db4241235dd6ebcc03f00505bdb51aea8d61ecf8bc64 [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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2025-09-21" "build" "--frozen" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] b2b633d8267b9f2443bbee4611f0be5d6a515a8a976a25a1932d1433aa462cb3 [INFO] running `Command { std: "docker" "start" "-a" "b2b633d8267b9f2443bbee4611f0be5d6a515a8a976a25a1932d1433aa462cb3", kill_on_drop: false }` [INFO] [stderr] Compiling syn v1.0.109 [INFO] [stderr] Compiling scopeguard v1.2.0 [INFO] [stderr] Compiling signal-hook-registry v1.4.6 [INFO] [stderr] Compiling parking_lot_core v0.9.11 [INFO] [stderr] Compiling tokio-macros v2.5.0 [INFO] [stderr] Compiling serde_core v1.0.228 [INFO] [stderr] Compiling ring v0.17.14 [INFO] [stderr] Compiling tracing-core v0.1.34 [INFO] [stderr] Compiling zeroize v1.8.2 [INFO] [stderr] Compiling tracing-attributes v0.1.30 [INFO] [stderr] Compiling derive_more v0.99.20 [INFO] [stderr] Compiling generic-array v0.14.7 [INFO] [stderr] Compiling rustls v0.23.32 [INFO] [stderr] Compiling futures-util v0.3.31 [INFO] [stderr] Compiling num-traits v0.2.19 [INFO] [stderr] Compiling subtle v2.6.1 [INFO] [stderr] Compiling lock_api v0.4.13 [INFO] [stderr] Compiling rustls-pki-types v1.12.0 [INFO] [stderr] Compiling thiserror-impl v1.0.69 [INFO] [stderr] Compiling prettyplease v0.1.25 [INFO] [stderr] Compiling icu_normalizer v2.0.0 [INFO] [stderr] Compiling parking_lot v0.12.4 [INFO] [stderr] Compiling macro_rules_attribute-proc_macro v0.1.3 [INFO] [stderr] Compiling camino v1.2.1 [INFO] [stderr] Compiling regex-syntax v0.8.6 [INFO] [stderr] Compiling tokio v1.47.1 [INFO] [stderr] Compiling webpki-roots v1.0.2 [INFO] [stderr] Compiling macro_rules_attribute v0.1.3 [INFO] [stderr] Compiling idna_adapter v1.2.1 [INFO] [stderr] Compiling getrandom v0.3.3 [INFO] [stderr] Compiling crossbeam-channel v0.5.15 [INFO] [stderr] Compiling concurrent-queue v2.5.0 [INFO] [stderr] Compiling parking v2.2.1 [INFO] [stderr] Compiling safer-ffi v0.1.13 [INFO] [stderr] Compiling rustix v0.38.44 [INFO] [stderr] Compiling anyhow v1.0.100 [INFO] [stderr] Compiling idna v1.1.0 [INFO] [stderr] Compiling rmp v0.8.14 [INFO] [stderr] Compiling event-listener v5.4.1 [INFO] [stderr] Compiling crossbeam-deque v0.8.6 [INFO] [stderr] Compiling block-buffer v0.10.4 [INFO] [stderr] Compiling crypto-common v0.1.6 [INFO] [stderr] Compiling tracing-log v0.2.0 [INFO] [stderr] Compiling crossbeam-queue v0.3.12 [INFO] [stderr] Compiling digest v0.10.7 [INFO] [stderr] Compiling blake3 v1.8.2 [INFO] [stderr] Compiling thread_local v1.1.9 [INFO] [stderr] Compiling inotify-sys v0.1.5 [INFO] [stderr] Compiling same-file v1.0.6 [INFO] [stderr] Compiling tracing v0.1.41 [INFO] [stderr] Compiling hashbrown v0.14.5 [INFO] [stderr] Compiling extern-c v0.1.0 [INFO] [stderr] Compiling thiserror v1.0.69 [INFO] [stderr] Compiling sha1 v0.10.6 [INFO] [stderr] Compiling iana-time-zone v0.1.64 [INFO] [stderr] Compiling unwind_safe v0.1.0 [INFO] [stderr] Compiling linux-raw-sys v0.4.15 [INFO] [stderr] Compiling nu-ansi-term v0.50.1 [INFO] [stderr] Compiling inotify v0.9.6 [INFO] [stderr] Compiling chrono v0.4.42 [INFO] [stderr] Compiling walkdir v2.5.0 [INFO] [stderr] Compiling crossbeam v0.8.4 [INFO] [stderr] Compiling event-listener-strategy v0.5.4 [INFO] [stderr] Compiling regex-automata v0.4.11 [INFO] [stderr] Compiling dashmap v6.1.0 [INFO] [stderr] Compiling webpki-roots v0.26.11 [INFO] [stderr] Compiling mio v0.8.11 [INFO] [stderr] Compiling libloading v0.8.9 [INFO] [stderr] Compiling home v0.5.11 [INFO] [stderr] Compiling dunce v1.0.5 [INFO] [stderr] Compiling either v1.15.0 [INFO] [stderr] Compiling async-channel v2.5.0 [INFO] [stderr] Compiling notify v6.1.1 [INFO] [stderr] Compiling debounce v0.2.2 [INFO] [stderr] Compiling build_cfg_shared v1.1.0 [INFO] [stderr] Compiling serde v1.0.228 [INFO] [stderr] Compiling uuid v1.18.1 [INFO] [stderr] Compiling serde_urlencoded v0.7.1 [INFO] [stderr] Compiling url v2.5.7 [INFO] [stderr] Compiling rmp-serde v1.3.0 [INFO] [stderr] Compiling dexterous_developer_types v0.4.0-alpha.3 [INFO] [stderr] Compiling which v6.0.3 [INFO] [stderr] Compiling matchers v0.2.0 [INFO] [stderr] Compiling tracing-subscriber v0.3.20 [INFO] [stderr] Compiling rustls-webpki v0.103.6 [INFO] [stderr] Compiling ext-trait-proc_macros v1.0.1 [INFO] [stderr] Compiling build_cfg_macros v1.1.0 [INFO] [stderr] Compiling with_builtin_macros-proc_macros v0.0.3 [INFO] [stderr] Compiling safer_ffi-proc_macros v0.1.13 [INFO] [stderr] Compiling ext-trait v1.0.1 [INFO] [stderr] Compiling build_cfg v1.1.0 [INFO] [stderr] Compiling prefer-dynamic v0.1.2 [INFO] [stderr] Compiling extension-traits v1.0.1 [INFO] [stderr] Compiling with_builtin_macros v0.0.3 [INFO] [stderr] Compiling uninit v0.5.1 [INFO] [stderr] error: failed to run custom build command for `prefer-dynamic v0.1.2` [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/prefer-dynamic-ceba6f6a305a9810/build-script-build` (exit status: 101) [INFO] [stderr] --- stdout [INFO] [stderr] cargo:rerun-if-changed=build.rs [INFO] [stderr] cargo:rerun-if-env-changed=OUT_DIR [INFO] [stderr] cargo:rerun-if-env-changed=RUSTUP_HOME [INFO] [stderr] cargo:rerun-if-env-changed=RUSTUP_TOOLCHAIN [INFO] [stderr] [INFO] [stderr] --- stderr [INFO] [stderr] [INFO] [stderr] thread 'main' (1664) panicked at /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/prefer-dynamic-0.1.2/build.rs:80:9: [INFO] [stderr] Failed to find std lib in toolchain directory! [INFO] [stderr] stack backtrace: [INFO] [stderr] 0: 0x650f97ae8c42 - 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: 0x650f97ae8c42 - 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: 0x650f97ae8c42 - std::sys::backtrace::_print_fmt::hf8d65ede198eeb54 [INFO] [stderr] at /rustc/bb624dcb4c8ab987e10c0808d92d76f3b84dd117/library/std/src/sys/backtrace.rs:66:9 [INFO] [stderr] 3: 0x650f97ae8c42 - ::fmt::h67edf0e4d33c343c [INFO] [stderr] at /rustc/bb624dcb4c8ab987e10c0808d92d76f3b84dd117/library/std/src/sys/backtrace.rs:39:26 [INFO] [stderr] 4: 0x650f97af7b6f - core::fmt::rt::Argument::fmt::hef94184842aeafdd [INFO] [stderr] at /rustc/bb624dcb4c8ab987e10c0808d92d76f3b84dd117/library/core/src/fmt/rt.rs:173:76 [INFO] [stderr] 5: 0x650f97af7b6f - core::fmt::write::hcf0c66b48a8fa606 [INFO] [stderr] at /rustc/bb624dcb4c8ab987e10c0808d92d76f3b84dd117/library/core/src/fmt/mod.rs:1468:25 [INFO] [stderr] 6: 0x650f97ac4891 - std::io::default_write_fmt::h1ecb8c7cfa7da481 [INFO] [stderr] at /rustc/bb624dcb4c8ab987e10c0808d92d76f3b84dd117/library/std/src/io/mod.rs:639:11 [INFO] [stderr] 7: 0x650f97ac4891 - std::io::Write::write_fmt::h051fe4a9e4fdbf48 [INFO] [stderr] at /rustc/bb624dcb4c8ab987e10c0808d92d76f3b84dd117/library/std/src/io/mod.rs:1954:13 [INFO] [stderr] 8: 0x650f97acb302 - std::sys::backtrace::BacktraceLock::print::h07e5435aa717b414 [INFO] [stderr] at /rustc/bb624dcb4c8ab987e10c0808d92d76f3b84dd117/library/std/src/sys/backtrace.rs:42:9 [INFO] [stderr] 9: 0x650f97acd0fc - std::panicking::default_hook::{{closure}}::h91001850288db5f7 [INFO] [stderr] at /rustc/bb624dcb4c8ab987e10c0808d92d76f3b84dd117/library/std/src/panicking.rs:301:27 [INFO] [stderr] 10: 0x650f97accf56 - std::panicking::default_hook::h2346dbb704ef5512 [INFO] [stderr] at /rustc/bb624dcb4c8ab987e10c0808d92d76f3b84dd117/library/std/src/panicking.rs:328:9 [INFO] [stderr] 11: 0x650f97acd785 - std::panicking::panic_with_hook::hd2b063a6090d23a4 [INFO] [stderr] at /rustc/bb624dcb4c8ab987e10c0808d92d76f3b84dd117/library/std/src/panicking.rs:834:13 [INFO] [stderr] 12: 0x650f97acd5e6 - std::panicking::panic_handler::{{closure}}::he666d95f139a333e [INFO] [stderr] at /rustc/bb624dcb4c8ab987e10c0808d92d76f3b84dd117/library/std/src/panicking.rs:700:13 [INFO] [stderr] 13: 0x650f97acb439 - std::sys::backtrace::__rust_end_short_backtrace::h631ad224854ebee5 [INFO] [stderr] at /rustc/bb624dcb4c8ab987e10c0808d92d76f3b84dd117/library/std/src/sys/backtrace.rs:174:18 [INFO] [stderr] 14: 0x650f97ab925d - __rustc[1d67440d6e82e4f]::rust_begin_unwind [INFO] [stderr] at /rustc/bb624dcb4c8ab987e10c0808d92d76f3b84dd117/library/std/src/panicking.rs:698:5 [INFO] [stderr] 15: 0x650f97afb180 - core::panicking::panic_fmt::h420ddb7fd73daf53 [INFO] [stderr] at /rustc/bb624dcb4c8ab987e10c0808d92d76f3b84dd117/library/core/src/panicking.rs:75:14 [INFO] [stderr] 16: 0x650f97aa8688 - build_script_build::main::ha50fa860937e3e33 [INFO] [stderr] 17: 0x650f97aa95b3 - core::ops::function::FnOnce::call_once::hca4c8875ea2e1231 [INFO] [stderr] 18: 0x650f97aa9076 - std::sys::backtrace::__rust_begin_short_backtrace::hebbb822ee6cf3afe [INFO] [stderr] 19: 0x650f97aa8f59 - std::rt::lang_start::{{closure}}::hf3168c647284cc81 [INFO] [stderr] 20: 0x650f97ac6100 - core::ops::function::impls:: for &F>::call_once::h4967fb77e0dfb65c [INFO] [stderr] at /rustc/bb624dcb4c8ab987e10c0808d92d76f3b84dd117/library/core/src/ops/function.rs:287:21 [INFO] [stderr] 21: 0x650f97ac6100 - std::panicking::catch_unwind::do_call::hf7e87675c3e14c23 [INFO] [stderr] at /rustc/bb624dcb4c8ab987e10c0808d92d76f3b84dd117/library/std/src/panicking.rs:590:40 [INFO] [stderr] 22: 0x650f97ac6100 - std::panicking::catch_unwind::h26f0e342004b5114 [INFO] [stderr] at /rustc/bb624dcb4c8ab987e10c0808d92d76f3b84dd117/library/std/src/panicking.rs:553:19 [INFO] [stderr] 23: 0x650f97ac6100 - std::panic::catch_unwind::h9ee33ca17775d897 [INFO] [stderr] at /rustc/bb624dcb4c8ab987e10c0808d92d76f3b84dd117/library/std/src/panic.rs:359:14 [INFO] [stderr] 24: 0x650f97ac6100 - std::rt::lang_start_internal::{{closure}}::h243ba3495fa13cf8 [INFO] [stderr] at /rustc/bb624dcb4c8ab987e10c0808d92d76f3b84dd117/library/std/src/rt.rs:175:24 [INFO] [stderr] 25: 0x650f97ac6100 - std::panicking::catch_unwind::do_call::h819db0a7788e7259 [INFO] [stderr] at /rustc/bb624dcb4c8ab987e10c0808d92d76f3b84dd117/library/std/src/panicking.rs:590:40 [INFO] [stderr] 26: 0x650f97ac6100 - std::panicking::catch_unwind::h23e08fb4a7b9f405 [INFO] [stderr] at /rustc/bb624dcb4c8ab987e10c0808d92d76f3b84dd117/library/std/src/panicking.rs:553:19 [INFO] [stderr] 27: 0x650f97ac6100 - std::panic::catch_unwind::h7ca3d9eabb6135ff [INFO] [stderr] at /rustc/bb624dcb4c8ab987e10c0808d92d76f3b84dd117/library/std/src/panic.rs:359:14 [INFO] [stderr] 28: 0x650f97ac6100 - std::rt::lang_start_internal::h06ad7395f4fda8d7 [INFO] [stderr] at /rustc/bb624dcb4c8ab987e10c0808d92d76f3b84dd117/library/std/src/rt.rs:171:5 [INFO] [stderr] 29: 0x650f97aa8f41 - std::rt::lang_start::h251348bdb5bf911c [INFO] [stderr] 30: 0x650f97aac9b5 - main [INFO] [stderr] 31: 0x7d6bc2f8c1ca - [INFO] [stderr] 32: 0x7d6bc2f8c28b - __libc_start_main [INFO] [stderr] 33: 0x650f97aa75c5 - _start [INFO] [stderr] 34: 0x0 - [INFO] [stderr] warning: build failed, waiting for other jobs to finish... [INFO] running `Command { std: "docker" "inspect" "b2b633d8267b9f2443bbee4611f0be5d6a515a8a976a25a1932d1433aa462cb3", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "b2b633d8267b9f2443bbee4611f0be5d6a515a8a976a25a1932d1433aa462cb3", kill_on_drop: false }` [INFO] [stdout] b2b633d8267b9f2443bbee4611f0be5d6a515a8a976a25a1932d1433aa462cb3