[INFO] fetching crate tnnl 0.1.16...
[INFO] testing tnnl-0.1.16 against beta-2026-04-21 for beta-1.96-2
[INFO] extracting crate tnnl 0.1.16 into /workspace/builds/worker-6-tc2/source
[INFO] started tweaking crates.io crate tnnl 0.1.16
[INFO] finished tweaking crates.io crate tnnl 0.1.16
[INFO] tweaked toml for crates.io crate tnnl 0.1.16 written to /workspace/builds/worker-6-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate tnnl 0.1.16 on toolchain beta-2026-04-21
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2026-04-21" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate tnnl 0.1.16 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-2026-04-21" "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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2026-04-21" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] b53bccad37dbbdc65a12d10b743bd68c9a02bd7059a6cf5167cb14ceb0a97a8d
[INFO] running `Command { std: "docker" "start" "-a" "b53bccad37dbbdc65a12d10b743bd68c9a02bd7059a6cf5167cb14ceb0a97a8d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "b53bccad37dbbdc65a12d10b743bd68c9a02bd7059a6cf5167cb14ceb0a97a8d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b53bccad37dbbdc65a12d10b743bd68c9a02bd7059a6cf5167cb14ceb0a97a8d", kill_on_drop: false }`
[INFO] [stdout] b53bccad37dbbdc65a12d10b743bd68c9a02bd7059a6cf5167cb14ceb0a97a8d
[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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2026-04-21" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 47f3f2f4043498257ae9edb95c8559b22c21498fae0c8b0e1d1bd031e1875e0b
[INFO] running `Command { std: "docker" "start" "-a" "47f3f2f4043498257ae9edb95c8559b22c21498fae0c8b0e1d1bd031e1875e0b", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.92
[INFO] [stderr]    Compiling unicode-ident v1.0.6
[INFO] [stderr]    Compiling libc v0.2.169
[INFO] [stderr]    Compiling serde v1.0.219
[INFO] [stderr]    Compiling memchr v2.6.4
[INFO] [stderr]    Compiling anstyle-query v1.1.1
[INFO] [stderr]    Compiling anstyle v1.0.10
[INFO] [stderr]    Compiling typenum v1.16.0
[INFO] [stderr]    Compiling colorchoice v1.0.3
[INFO] [stderr]    Compiling is_terminal_polyfill v1.70.1
[INFO] [stderr]    Compiling anstyle-parse v0.2.6
[INFO] [stderr]    Compiling aws-lc-rs v1.12.0
[INFO] [stderr]    Compiling log v0.4.27
[INFO] [stderr]    Compiling getrandom v0.3.1
[INFO] [stderr]    Compiling generic-array v0.14.6
[INFO] [stderr]    Compiling hashbrown v0.15.2
[INFO] [stderr]    Compiling rustix v0.38.28
[INFO] [stderr]    Compiling rustls-pki-types v1.11.0
[INFO] [stderr]    Compiling zerocopy v0.8.18
[INFO] [stderr]    Compiling zeroize v1.8.1
[INFO] [stderr]    Compiling clap_lex v0.7.4
[INFO] [stderr]    Compiling anstream v0.6.15
[INFO] [stderr]    Compiling toml_write v0.1.1
[INFO] [stderr]    Compiling winnow v0.7.7
[INFO] [stderr]    Compiling bitflags v2.6.0
[INFO] [stderr]    Compiling linux-raw-sys v0.4.14
[INFO] [stderr]    Compiling serde_json v1.0.140
[INFO] [stderr]    Compiling clap_builder v4.5.37
[INFO] [stderr]    Compiling rustls v0.23.26
[INFO] [stderr]    Compiling fastrand v2.1.0
[INFO] [stderr]    Compiling cbindgen v0.28.0
[INFO] [stderr]    Compiling regex-syntax v0.8.4
[INFO] [stderr]    Compiling bytes v1.9.0
[INFO] [stderr]    Compiling indexmap v2.9.0
[INFO] [stderr]    Compiling aho-corasick v1.1.3
[INFO] [stderr]    Compiling autocfg v1.1.0
[INFO] [stderr]    Compiling thiserror v2.0.8
[INFO] [stderr]    Compiling subtle v2.6.1
[INFO] [stderr]    Compiling heck v0.4.1
[INFO] [stderr]    Compiling ppv-lite86 v0.2.17
[INFO] [stderr]    Compiling quote v1.0.36
[INFO] [stderr]    Compiling httparse v1.8.0
[INFO] [stderr]    Compiling pin-project-lite v0.2.13
[INFO] [stderr]    Compiling syn v2.0.90
[INFO] [stderr]    Compiling jobserver v0.1.32
[INFO] [stderr]    Compiling slab v0.4.9
[INFO] [stderr]    Compiling once_cell v1.19.0
[INFO] [stderr]    Compiling mio v1.0.1
[INFO] [stderr]    Compiling socket2 v0.5.5
[INFO] [stderr]    Compiling base64 v0.22.1
[INFO] [stderr]    Compiling cpufeatures v0.2.5
[INFO] [stderr]    Compiling http v1.1.0
[INFO] [stderr]    Compiling cc v1.1.18
[INFO] [stderr]    Compiling openssl-probe v0.1.5
[INFO] [stderr]    Compiling futures-sink v0.3.31
[INFO] [stderr]    Compiling rand_core v0.9.1
[INFO] [stderr]    Compiling humantime v2.1.0
[INFO] [stderr]    Compiling rustls-pemfile v2.1.2
[INFO] [stderr]    Compiling futures-core v0.3.31
[INFO] [stderr]    Compiling data-encoding v2.5.0
[INFO] [stderr]    Compiling rand_chacha v0.9.0
[INFO] [stderr]    Compiling futures-task v0.3.31
[INFO] [stderr]    Compiling rustls-native-certs v0.8.0
[INFO] [stderr]    Compiling uuid v1.16.0
[INFO] [stderr]    Compiling crypto-common v0.1.6
[INFO] [stderr]    Compiling block-buffer v0.10.3
[INFO] [stderr]    Compiling rand v0.9.0
[INFO] [stderr]    Compiling digest v0.10.6
[INFO] [stderr]    Compiling regex-automata v0.4.7
[INFO] [stderr]    Compiling tempfile v3.9.0
[INFO] [stderr]    Compiling sha1 v0.10.5
[INFO] [stderr]    Compiling cmake v0.1.51
[INFO] [stderr]    Compiling clap v4.5.37
[INFO] [stderr]    Compiling aws-lc-sys v0.24.1
[INFO] [stderr]    Compiling regex v1.10.6
[INFO] [stderr]    Compiling serde_derive v1.0.219
[INFO] [stderr]    Compiling tokio-macros v2.5.0
[INFO] [stderr]    Compiling thiserror-impl v2.0.8
[INFO] [stderr]    Compiling futures-macro v0.3.31
[INFO] [stderr]    Compiling env_filter v0.1.2
[INFO] [stderr]    Compiling env_logger v0.11.5
[INFO] [stderr]    Compiling colog v1.3.0
[INFO] [stderr]    Compiling tokio v1.44.2
[INFO] [stderr]    Compiling futures-util v0.3.31
[INFO] [stderr]    Compiling toml_datetime v0.6.9
[INFO] [stderr]    Compiling serde_spanned v0.6.8
[INFO] [stderr]    Compiling toml_edit v0.22.26
[INFO] [stderr]    Compiling rustls-webpki v0.103.0
[INFO] [stderr]    Compiling toml v0.8.22
[INFO] [stderr]    Compiling tokio-rustls v0.26.0
[INFO] [stderr]    Compiling tungstenite v0.26.2
[INFO] [stderr]    Compiling tokio-tungstenite v0.26.2
[INFO] [stderr]    Compiling tnnl v0.1.16 (/opt/rustwide/workdir)
[INFO] [stderr] error: failed to run custom build command for `tnnl v0.1.16 (/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/tnnl-8129df156ac6bd6a/build-script-build` (exit status: 101)
[INFO] [stderr]   --- stderr
[INFO] [stderr] 
[INFO] [stderr]   thread 'main' (2705) panicked at build.rs:19:35:
[INFO] [stderr]   Could not copy header file: Os { code: 30, kind: ReadOnlyFilesystem, message: "Read-only file system" }
[INFO] [stderr]   stack backtrace:
[INFO] [stderr]      0:     0x60cc56892bea - std[128c3efe2914e152]::backtrace_rs::backtrace::libunwind::trace
[INFO] [stderr]                                  at /rustc/8489f1adbe1c8f8921cf18b9962cf565237a5489/library/std/src/../../backtrace/src/backtrace/libunwind.rs:117:9
[INFO] [stderr]      1:     0x60cc56892bea - std[128c3efe2914e152]::backtrace_rs::backtrace::trace_unsynchronized::<std[128c3efe2914e152]::sys::backtrace::_print_fmt::{closure#1}>
[INFO] [stderr]                                  at /rustc/8489f1adbe1c8f8921cf18b9962cf565237a5489/library/std/src/../../backtrace/src/backtrace/mod.rs:66:14
[INFO] [stderr]      2:     0x60cc56892bea - std[128c3efe2914e152]::sys::backtrace::_print_fmt
[INFO] [stderr]                                  at /rustc/8489f1adbe1c8f8921cf18b9962cf565237a5489/library/std/src/sys/backtrace.rs:74:9
[INFO] [stderr]      3:     0x60cc56892bea - <<std[128c3efe2914e152]::sys::backtrace::BacktraceLock>::print::DisplayBacktrace as core[6771d259883166e6]::fmt::Display>::fmt
[INFO] [stderr]                                  at /rustc/8489f1adbe1c8f8921cf18b9962cf565237a5489/library/std/src/sys/backtrace.rs:44:26
[INFO] [stderr]      4:     0x60cc568a93ba - <core[6771d259883166e6]::fmt::rt::Argument>::fmt
[INFO] [stderr]                                  at /rustc/8489f1adbe1c8f8921cf18b9962cf565237a5489/library/core/src/fmt/rt.rs:152:76
[INFO] [stderr]      5:     0x60cc568a93ba - core[6771d259883166e6]::fmt::write
[INFO] [stderr]      6:     0x60cc56898082 - std[128c3efe2914e152]::io::default_write_fmt::<std[128c3efe2914e152]::sys::stdio::unix::Stderr>
[INFO] [stderr]                                  at /rustc/8489f1adbe1c8f8921cf18b9962cf565237a5489/library/std/src/io/mod.rs:621:11
[INFO] [stderr]      7:     0x60cc56898082 - <std[128c3efe2914e152]::sys::stdio::unix::Stderr as std[128c3efe2914e152]::io::Write>::write_fmt
[INFO] [stderr]                                  at /rustc/8489f1adbe1c8f8921cf18b9962cf565237a5489/library/std/src/io/mod.rs:1976:13
[INFO] [stderr]      8:     0x60cc568741ef - <std[128c3efe2914e152]::sys::backtrace::BacktraceLock>::print
[INFO] [stderr]                                  at /rustc/8489f1adbe1c8f8921cf18b9962cf565237a5489/library/std/src/sys/backtrace.rs:47:9
[INFO] [stderr]      9:     0x60cc568741ef - std[128c3efe2914e152]::panicking::default_hook::{closure#0}
[INFO] [stderr]                                  at /rustc/8489f1adbe1c8f8921cf18b9962cf565237a5489/library/std/src/panicking.rs:292:27
[INFO] [stderr]     10:     0x60cc5688cbb1 - std[128c3efe2914e152]::panicking::default_hook
[INFO] [stderr]                                  at /rustc/8489f1adbe1c8f8921cf18b9962cf565237a5489/library/std/src/panicking.rs:319:9
[INFO] [stderr]     11:     0x60cc5688ce2b - std[128c3efe2914e152]::panicking::panic_with_hook
[INFO] [stderr]                                  at /rustc/8489f1adbe1c8f8921cf18b9962cf565237a5489/library/std/src/panicking.rs:825:13
[INFO] [stderr]     12:     0x60cc568742a8 - std[128c3efe2914e152]::panicking::panic_handler::{closure#0}
[INFO] [stderr]                                  at /rustc/8489f1adbe1c8f8921cf18b9962cf565237a5489/library/std/src/panicking.rs:698:13
[INFO] [stderr]     13:     0x60cc56869339 - std[128c3efe2914e152]::sys::backtrace::__rust_end_short_backtrace::<std[128c3efe2914e152]::panicking::panic_handler::{closure#0}, !>
[INFO] [stderr]                                  at /rustc/8489f1adbe1c8f8921cf18b9962cf565237a5489/library/std/src/sys/backtrace.rs:182:18
[INFO] [stderr]     14:     0x60cc56874b8d - __rustc[752cc74e29381ccc]::rust_begin_unwind
[INFO] [stderr]                                  at /rustc/8489f1adbe1c8f8921cf18b9962cf565237a5489/library/std/src/panicking.rs:689:5
[INFO] [stderr]     15:     0x60cc568a9bfc - core[6771d259883166e6]::panicking::panic_fmt
[INFO] [stderr]                                  at /rustc/8489f1adbe1c8f8921cf18b9962cf565237a5489/library/core/src/panicking.rs:80:14
[INFO] [stderr]     16:     0x60cc568a9972 - core[6771d259883166e6]::result::unwrap_failed
[INFO] [stderr]                                  at /rustc/8489f1adbe1c8f8921cf18b9962cf565237a5489/library/core/src/result.rs:1867:5
[INFO] [stderr]     17:     0x60cc563e7f46 - core::result::Result<T,E>::expect::h46fa6c4cde1dfd70
[INFO] [stderr]     18:     0x60cc5640df92 - build_script_build::main::h6d90aa6c18c59840
[INFO] [stderr]     19:     0x60cc5641d8a3 - core::ops::function::FnOnce::call_once::h27c239d8e50f8c31
[INFO] [stderr]     20:     0x60cc5641d5e6 - std::sys::backtrace::__rust_begin_short_backtrace::ha61d533cc9327a44
[INFO] [stderr]     21:     0x60cc564013c9 - std::rt::lang_start::{{closure}}::hbaf7f3a990a72d30
[INFO] [stderr]     22:     0x60cc5688bcf4 - <&dyn core[6771d259883166e6]::ops::function::Fn<(), Output = i32> + core[6771d259883166e6]::marker::Sync + core[6771d259883166e6]::panic::unwind_safe::RefUnwindSafe as core[6771d259883166e6]::ops::function::FnOnce<()>>::call_once
[INFO] [stderr]                                  at /rustc/8489f1adbe1c8f8921cf18b9962cf565237a5489/library/core/src/ops/function.rs:287:21
[INFO] [stderr]     23:     0x60cc5688bcf4 - std[128c3efe2914e152]::panicking::catch_unwind::do_call::<&dyn core[6771d259883166e6]::ops::function::Fn<(), Output = i32> + core[6771d259883166e6]::marker::Sync + core[6771d259883166e6]::panic::unwind_safe::RefUnwindSafe, i32>
[INFO] [stderr]                                  at /rustc/8489f1adbe1c8f8921cf18b9962cf565237a5489/library/std/src/panicking.rs:581:40
[INFO] [stderr]     24:     0x60cc5688bcf4 - std[128c3efe2914e152]::panicking::catch_unwind::<i32, &dyn core[6771d259883166e6]::ops::function::Fn<(), Output = i32> + core[6771d259883166e6]::marker::Sync + core[6771d259883166e6]::panic::unwind_safe::RefUnwindSafe>
[INFO] [stderr]                                  at /rustc/8489f1adbe1c8f8921cf18b9962cf565237a5489/library/std/src/panicking.rs:544:19
[INFO] [stderr]     25:     0x60cc5688bcf4 - std[128c3efe2914e152]::panic::catch_unwind::<&dyn core[6771d259883166e6]::ops::function::Fn<(), Output = i32> + core[6771d259883166e6]::marker::Sync + core[6771d259883166e6]::panic::unwind_safe::RefUnwindSafe, i32>
[INFO] [stderr]                                  at /rustc/8489f1adbe1c8f8921cf18b9962cf565237a5489/library/std/src/panic.rs:359:14
[INFO] [stderr]     26:     0x60cc5688bcf4 - std[128c3efe2914e152]::rt::lang_start_internal::{closure#0}
[INFO] [stderr]                                  at /rustc/8489f1adbe1c8f8921cf18b9962cf565237a5489/library/std/src/rt.rs:175:24
[INFO] [stderr]     27:     0x60cc5688bcf4 - std[128c3efe2914e152]::panicking::catch_unwind::do_call::<std[128c3efe2914e152]::rt::lang_start_internal::{closure#0}, isize>
[INFO] [stderr]                                  at /rustc/8489f1adbe1c8f8921cf18b9962cf565237a5489/library/std/src/panicking.rs:581:40
[INFO] [stderr]     28:     0x60cc5688bcf4 - std[128c3efe2914e152]::panicking::catch_unwind::<isize, std[128c3efe2914e152]::rt::lang_start_internal::{closure#0}>
[INFO] [stderr]                                  at /rustc/8489f1adbe1c8f8921cf18b9962cf565237a5489/library/std/src/panicking.rs:544:19
[INFO] [stderr]     29:     0x60cc5688bcf4 - std[128c3efe2914e152]::panic::catch_unwind::<std[128c3efe2914e152]::rt::lang_start_internal::{closure#0}, isize>
[INFO] [stderr]                                  at /rustc/8489f1adbe1c8f8921cf18b9962cf565237a5489/library/std/src/panic.rs:359:14
[INFO] [stderr]     30:     0x60cc5688bcf4 - std[128c3efe2914e152]::rt::lang_start_internal
[INFO] [stderr]                                  at /rustc/8489f1adbe1c8f8921cf18b9962cf565237a5489/library/std/src/rt.rs:171:5
[INFO] [stderr]     31:     0x60cc564013b1 - std::rt::lang_start::h549b60442b2ea22c
[INFO] [stderr]     32:     0x60cc56418045 - main
[INFO] [stderr]     33:     0x706667d351ca - <unknown>
[INFO] [stderr]     34:     0x706667d3528b - __libc_start_main
[INFO] [stderr]     35:     0x60cc5632aac5 - _start
[INFO] [stderr]     36:                0x0 - <unknown>
[INFO] running `Command { std: "docker" "inspect" "47f3f2f4043498257ae9edb95c8559b22c21498fae0c8b0e1d1bd031e1875e0b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "47f3f2f4043498257ae9edb95c8559b22c21498fae0c8b0e1d1bd031e1875e0b", kill_on_drop: false }`
[INFO] [stdout] 47f3f2f4043498257ae9edb95c8559b22c21498fae0c8b0e1d1bd031e1875e0b
