[INFO] fetching crate rustscan 2.4.1...
[INFO] testing rustscan-2.4.1 against beta-2026-04-21 for beta-1.96-2
[INFO] extracting crate rustscan 2.4.1 into /workspace/builds/worker-2-tc2/source
[INFO] started tweaking crates.io crate rustscan 2.4.1
[INFO] removed 0 missing tests
[INFO] finished tweaking crates.io crate rustscan 2.4.1
[INFO] tweaked toml for crates.io crate rustscan 2.4.1 written to /workspace/builds/worker-2-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate rustscan 2.4.1 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 rustscan 2.4.1 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-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-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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] 7a84f5a8947c481913a60f8dccad420178cbd1c4cc4dc3212c192b2858dab9d9
[INFO] running `Command { std: "docker" "start" "-a" "7a84f5a8947c481913a60f8dccad420178cbd1c4cc4dc3212c192b2858dab9d9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "7a84f5a8947c481913a60f8dccad420178cbd1c4cc4dc3212c192b2858dab9d9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7a84f5a8947c481913a60f8dccad420178cbd1c4cc4dc3212c192b2858dab9d9", kill_on_drop: false }`
[INFO] [stdout] 7a84f5a8947c481913a60f8dccad420178cbd1c4cc4dc3212c192b2858dab9d9
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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] e916315e3b1a01a33eecb5af243229128ca30821a3b15534974ede07f9971a7d
[INFO] running `Command { std: "docker" "start" "-a" "e916315e3b1a01a33eecb5af243229128ca30821a3b15534974ede07f9971a7d", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.93
[INFO] [stderr]    Compiling unicode-ident v1.0.17
[INFO] [stderr]    Compiling libc v0.2.170
[INFO] [stderr]    Compiling memchr v2.7.4
[INFO] [stderr]    Compiling futures-io v0.3.31
[INFO] [stderr]    Compiling once_cell v1.20.3
[INFO] [stderr]    Compiling cc v1.2.15
[INFO] [stderr]    Compiling value-bag v1.10.0
[INFO] [stderr]    Compiling rustix v0.38.44
[INFO] [stderr]    Compiling linux-raw-sys v0.4.15
[INFO] [stderr]    Compiling smallvec v1.14.0
[INFO] [stderr]    Compiling bitflags v2.8.0
[INFO] [stderr]    Compiling log v0.4.26
[INFO] [stderr]    Compiling serde v1.0.218
[INFO] [stderr]    Compiling tracing-core v0.1.33
[INFO] [stderr]    Compiling event-listener v5.4.0
[INFO] [stderr]    Compiling quote v1.0.38
[INFO] [stderr]    Compiling event-listener-strategy v0.5.3
[INFO] [stderr]    Compiling futures-sink v0.3.31
[INFO] [stderr]    Compiling syn v2.0.98
[INFO] [stderr]    Compiling futures-channel v0.3.31
[INFO] [stderr]    Compiling futures-lite v2.6.0
[INFO] [stderr]    Compiling num-traits v0.2.19
[INFO] [stderr]    Compiling rustls v0.21.12
[INFO] [stderr]    Compiling zerocopy v0.8.20
[INFO] [stderr]    Compiling getrandom v0.3.1
[INFO] [stderr]    Compiling ahash v0.8.11
[INFO] [stderr]    Compiling ring v0.17.11
[INFO] [stderr]    Compiling anstyle-parse v0.2.6
[INFO] [stderr]    Compiling aho-corasick v1.1.3
[INFO] [stderr]    Compiling lock_api v0.4.12
[INFO] [stderr]    Compiling parking_lot_core v0.9.10
[INFO] [stderr]    Compiling anstyle-query v1.1.2
[INFO] [stderr]    Compiling bytes v1.10.0
[INFO] [stderr]    Compiling colorchoice v1.0.3
[INFO] [stderr]    Compiling piper v0.2.4
[INFO] [stderr]    Compiling anstream v0.6.18
[INFO] [stderr]    Compiling form_urlencoded v1.2.1
[INFO] [stderr]    Compiling async-channel v2.3.1
[INFO] [stderr]    Compiling getrandom v0.2.15
[INFO] [stderr]    Compiling mio v1.0.3
[INFO] [stderr]    Compiling rand_core v0.6.4
[INFO] [stderr]    Compiling socket2 v0.5.8
[INFO] [stderr]    Compiling regex-automata v0.4.9
[INFO] [stderr]    Compiling tokio v1.43.0
[INFO] [stderr]    Compiling async-lock v3.4.0
[INFO] [stderr]    Compiling serde_json v1.0.139
[INFO] [stderr]    Compiling hashbrown v0.15.2
[INFO] [stderr]    Compiling tinyvec v1.8.1
[INFO] [stderr]    Compiling indexmap v2.7.1
[INFO] [stderr]    Compiling hostname v0.3.1
[INFO] [stderr]    Compiling rand_core v0.9.2
[INFO] [stderr]    Compiling num-integer v0.1.46
[INFO] [stderr]    Compiling blocking v1.6.1
[INFO] [stderr]    Compiling synstructure v0.13.1
[INFO] [stderr]    Compiling rustls-webpki v0.101.7
[INFO] [stderr]    Compiling sct v0.7.1
[INFO] [stderr]    Compiling async-executor v1.13.1
[INFO] [stderr]    Compiling data-encoding v2.8.0
[INFO] [stderr]    Compiling regex v1.11.1
[INFO] [stderr]    Compiling terminal_size v0.4.1
[INFO] [stderr]    Compiling winnow v0.7.3
[INFO] [stderr]    Compiling rlimit v0.10.2
[INFO] [stderr]    Compiling anyhow v1.0.96
[INFO] [stderr]    Compiling clap_builder v4.5.30
[INFO] [stderr]    Compiling dirs-sys v0.5.0
[INFO] [stderr]    Compiling zerofrom-derive v0.1.5
[INFO] [stderr]    Compiling yoke-derive v0.7.5
[INFO] [stderr]    Compiling zerovec-derive v0.10.3
[INFO] [stderr]    Compiling displaydoc v0.2.5
[INFO] [stderr]    Compiling zerocopy-derive v0.7.35
[INFO] [stderr]    Compiling zerofrom v0.1.5
[INFO] [stderr]    Compiling yoke v0.7.5
[INFO] [stderr]    Compiling icu_provider_macros v1.5.0
[INFO] [stderr]    Compiling zerovec v0.10.4
[INFO] [stderr]    Compiling serde_derive v1.0.218
[INFO] [stderr]    Compiling tracing-attributes v0.1.28
[INFO] [stderr]    Compiling futures-macro v0.3.31
[INFO] [stderr]    Compiling zerocopy v0.7.35
[INFO] [stderr]    Compiling tinystr v0.7.6
[INFO] [stderr]    Compiling icu_collections v1.5.0
[INFO] [stderr]    Compiling icu_locid v1.5.0
[INFO] [stderr]    Compiling futures-util v0.3.31
[INFO] [stderr]    Compiling ppv-lite86 v0.2.20
[INFO] [stderr]    Compiling tracing v0.1.41
[INFO] [stderr]    Compiling polling v3.7.4
[INFO] [stderr]    Compiling rand_chacha v0.3.1
[INFO] [stderr]    Compiling thiserror-impl v1.0.69
[INFO] [stderr]    Compiling icu_provider v1.5.0
[INFO] [stderr]    Compiling rand v0.8.5
[INFO] [stderr]    Compiling async-io v2.4.0
[INFO] [stderr]    Compiling icu_locid_transform v1.5.0
[INFO] [stderr]    Compiling tokio-rustls v0.24.1
[INFO] [stderr]    Compiling async-trait v0.1.86
[INFO] [stderr]    Compiling thiserror v1.0.69
[INFO] [stderr]    Compiling enum-as-inner v0.6.1
[INFO] [stderr]    Compiling async-global-executor v2.4.1
[INFO] [stderr]    Compiling hashbrown v0.13.2
[INFO] [stderr]    Compiling icu_properties v1.5.1
[INFO] [stderr]    Compiling rand_chacha v0.9.0
[INFO] [stderr]    Compiling clap_derive v4.5.28
[INFO] [stderr]    Compiling futures-executor v0.3.31
[INFO] [stderr]    Compiling env_filter v0.1.3
[INFO] [stderr]    Compiling resolv-conf v0.7.0
[INFO] [stderr]    Compiling async-channel v1.9.0
[INFO] [stderr]    Compiling parking_lot v0.12.3
[INFO] [stderr]    Compiling num-bigint v0.4.6
[INFO] [stderr]    Compiling kv-log-macro v1.0.7
[INFO] [stderr]    Compiling rustscan v2.4.1 (/opt/rustwide/workdir)
[INFO] [stderr]    Compiling cidr v0.2.3
[INFO] [stderr]    Compiling humantime v2.1.0
[INFO] [stderr]    Compiling env_logger v0.11.6
[INFO] [stderr]    Compiling itertools v0.14.0
[INFO] [stderr] error: failed to run custom build command for `rustscan v2.4.1 (/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/rustscan-db30fbec1e84e4bc/build-script-build` (exit status: 101)
[INFO] [stderr]   --- stderr
[INFO] [stderr] 
[INFO] [stderr]   thread 'main' (1843) panicked at build.rs:101:42:
[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:     0x618715c4365a - 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:     0x618715c4365a - 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:     0x618715c4365a - std[128c3efe2914e152]::sys::backtrace::_print_fmt
[INFO] [stderr]                                  at /rustc/8489f1adbe1c8f8921cf18b9962cf565237a5489/library/std/src/sys/backtrace.rs:74:9
[INFO] [stderr]      3:     0x618715c4365a - <<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:     0x618715c547fa - <core[6771d259883166e6]::fmt::rt::Argument>::fmt
[INFO] [stderr]                                  at /rustc/8489f1adbe1c8f8921cf18b9962cf565237a5489/library/core/src/fmt/rt.rs:152:76
[INFO] [stderr]      5:     0x618715c547fa - core[6771d259883166e6]::fmt::write
[INFO] [stderr]      6:     0x618715c477c2 - 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:     0x618715c477c2 - <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:     0x618715c28f6f - <std[128c3efe2914e152]::sys::backtrace::BacktraceLock>::print
[INFO] [stderr]                                  at /rustc/8489f1adbe1c8f8921cf18b9962cf565237a5489/library/std/src/sys/backtrace.rs:47:9
[INFO] [stderr]      9:     0x618715c28f6f - std[128c3efe2914e152]::panicking::default_hook::{closure#0}
[INFO] [stderr]                                  at /rustc/8489f1adbe1c8f8921cf18b9962cf565237a5489/library/std/src/panicking.rs:292:27
[INFO] [stderr]     10:     0x618715c3f0e1 - std[128c3efe2914e152]::panicking::default_hook
[INFO] [stderr]                                  at /rustc/8489f1adbe1c8f8921cf18b9962cf565237a5489/library/std/src/panicking.rs:319:9
[INFO] [stderr]     11:     0x618715c3f29b - std[128c3efe2914e152]::panicking::panic_with_hook
[INFO] [stderr]                                  at /rustc/8489f1adbe1c8f8921cf18b9962cf565237a5489/library/std/src/panicking.rs:825:13
[INFO] [stderr]     12:     0x618715c29028 - std[128c3efe2914e152]::panicking::panic_handler::{closure#0}
[INFO] [stderr]                                  at /rustc/8489f1adbe1c8f8921cf18b9962cf565237a5489/library/std/src/panicking.rs:698:13
[INFO] [stderr]     13:     0x618715c1e449 - 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:     0x618715c2988d - __rustc[752cc74e29381ccc]::rust_begin_unwind
[INFO] [stderr]                                  at /rustc/8489f1adbe1c8f8921cf18b9962cf565237a5489/library/std/src/panicking.rs:689:5
[INFO] [stderr]     15:     0x618715c54f2c - core[6771d259883166e6]::panicking::panic_fmt
[INFO] [stderr]                                  at /rustc/8489f1adbe1c8f8921cf18b9962cf565237a5489/library/core/src/panicking.rs:80:14
[INFO] [stderr]     16:     0x618715c54d02 - core[6771d259883166e6]::result::unwrap_failed
[INFO] [stderr]                                  at /rustc/8489f1adbe1c8f8921cf18b9962cf565237a5489/library/core/src/result.rs:1867:5
[INFO] [stderr]     17:     0x618715c0c4d2 - build_script_build::generate_code::he5d170cc8e2a03ad
[INFO] [stderr]     18:     0x618715c0d204 - build_script_build::main::hbcdec65bf4370f60
[INFO] [stderr]     19:     0x618715c046a3 - core::ops::function::FnOnce::call_once::ha36a791664ea8101
[INFO] [stderr]     20:     0x618715c0a1b6 - std::sys::backtrace::__rust_begin_short_backtrace::hda89457ceaafe319
[INFO] [stderr]     21:     0x618715c02969 - std::rt::lang_start::{{closure}}::h1b66ca24e10cdb95
[INFO] [stderr]     22:     0x618715c3e464 - <&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:     0x618715c3e464 - 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:     0x618715c3e464 - 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:     0x618715c3e464 - 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:     0x618715c3e464 - std[128c3efe2914e152]::rt::lang_start_internal::{closure#0}
[INFO] [stderr]                                  at /rustc/8489f1adbe1c8f8921cf18b9962cf565237a5489/library/std/src/rt.rs:175:24
[INFO] [stderr]     27:     0x618715c3e464 - 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:     0x618715c3e464 - 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:     0x618715c3e464 - 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:     0x618715c3e464 - std[128c3efe2914e152]::rt::lang_start_internal
[INFO] [stderr]                                  at /rustc/8489f1adbe1c8f8921cf18b9962cf565237a5489/library/std/src/rt.rs:171:5
[INFO] [stderr]     31:     0x618715c02951 - std::rt::lang_start::he59deb108539ee16
[INFO] [stderr]     32:     0x618715c10045 - main
[INFO] [stderr]     33:     0x7a046ace61ca - <unknown>
[INFO] [stderr]     34:     0x7a046ace628b - __libc_start_main
[INFO] [stderr]     35:     0x618715be9ed5 - _start
[INFO] [stderr]     36:                0x0 - <unknown>
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] running `Command { std: "docker" "inspect" "e916315e3b1a01a33eecb5af243229128ca30821a3b15534974ede07f9971a7d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e916315e3b1a01a33eecb5af243229128ca30821a3b15534974ede07f9971a7d", kill_on_drop: false }`
[INFO] [stdout] e916315e3b1a01a33eecb5af243229128ca30821a3b15534974ede07f9971a7d
