[INFO] fetching crate rust-libcore 0.0.3...
[INFO] testing rust-libcore-0.0.3 against beta-2025-09-21 for beta-1.91-3
[INFO] extracting crate rust-libcore 0.0.3 into /workspace/builds/worker-5-tc2/source
[INFO] started tweaking crates.io crate rust-libcore 0.0.3
[INFO] finished tweaking crates.io crate rust-libcore 0.0.3
[INFO] tweaked toml for crates.io crate rust-libcore 0.0.3 written to /workspace/builds/worker-5-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate rust-libcore 0.0.3 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] 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] [stderr] warning: no edition set: defaulting to the 2015 edition while the latest is 2024
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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] 1f2196e299dd3439eb54d01b846f4ddd2d5122d44c27e37ddafad84eefb0e640
[INFO] running `Command { std: "docker" "start" "-a" "1f2196e299dd3439eb54d01b846f4ddd2d5122d44c27e37ddafad84eefb0e640", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "1f2196e299dd3439eb54d01b846f4ddd2d5122d44c27e37ddafad84eefb0e640", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1f2196e299dd3439eb54d01b846f4ddd2d5122d44c27e37ddafad84eefb0e640", kill_on_drop: false }`
[INFO] [stdout] 1f2196e299dd3439eb54d01b846f4ddd2d5122d44c27e37ddafad84eefb0e640
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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] 0caefe1c10cc3c3e5af07ad59d732af24f1928741bb5a28e8bd3018a109fb8c2
[INFO] running `Command { std: "docker" "start" "-a" "0caefe1c10cc3c3e5af07ad59d732af24f1928741bb5a28e8bd3018a109fb8c2", kill_on_drop: false }`
[INFO] [stderr] warning: no edition set: defaulting to the 2015 edition while the latest is 2024
[INFO] [stderr]    Compiling rust-libcore v0.0.3 (/opt/rustwide/workdir)
[INFO] [stdout] warning: use of deprecated method `core::str::<impl str>::trim_left_matches`: superseded by `trim_start_matches`
[INFO] [stdout]   --> build.rs:27:7
[INFO] [stdout]    |
[INFO] [stdout] 27 |     }.trim_left_matches("(");
[INFO] [stdout]    |       ^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] help: replace the use of the deprecated method
[INFO] [stdout]    |
[INFO] [stdout] 27 -     }.trim_left_matches("(");
[INFO] [stdout] 27 +     }.trim_start_matches("(");
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]   --> build.rs:26:26
[INFO] [stdout]    |
[INFO] [stdout] 26 |         Err(e) => panic!(e),
[INFO] [stdout]    |                          ^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this usage of `panic!()` is deprecated; it will be a hard error in Rust 2021
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/edition-guide/rust-2021/panic-macro-consistency.html>
[INFO] [stdout]    = note: `#[warn(non_fmt_panics)]` (part of `#[warn(rust_2021_compatibility)]`) on by default
[INFO] [stdout] help: add a "{}" format string to `Display` the message
[INFO] [stdout]    |
[INFO] [stdout] 26 |         Err(e) => panic!("{}", e),
[INFO] [stdout]    |                          +++++
[INFO] [stdout] help: or use std::panic::panic_any instead
[INFO] [stdout]    |
[INFO] [stdout] 26 -         Err(e) => panic!(e),
[INFO] [stdout] 26 +         Err(e) => std::panic::panic_any(e),
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]   --> build.rs:33:38
[INFO] [stdout]    |
[INFO] [stdout] 33 |                     Err(e) => panic!(e),
[INFO] [stdout]    |                                      ^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this usage of `panic!()` is deprecated; it will be a hard error in Rust 2021
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/edition-guide/rust-2021/panic-macro-consistency.html>
[INFO] [stdout] help: add a "{}" format string to `Display` the message
[INFO] [stdout]    |
[INFO] [stdout] 33 |                     Err(e) => panic!("{}", e),
[INFO] [stdout]    |                                      +++++
[INFO] [stdout] help: or use std::panic::panic_any instead
[INFO] [stdout]    |
[INFO] [stdout] 33 -                     Err(e) => panic!(e),
[INFO] [stdout] 33 +                     Err(e) => std::panic::panic_any(e),
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]   --> build.rs:43:16
[INFO] [stdout]    |
[INFO] [stdout] 43 |         panic!(e);
[INFO] [stdout]    |                ^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this usage of `panic!()` is deprecated; it will be a hard error in Rust 2021
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/edition-guide/rust-2021/panic-macro-consistency.html>
[INFO] [stdout] help: add a "{}" format string to `Display` the message
[INFO] [stdout]    |
[INFO] [stdout] 43 |         panic!("{}", e);
[INFO] [stdout]    |                +++++
[INFO] [stdout] help: or use std::panic::panic_any instead
[INFO] [stdout]    |
[INFO] [stdout] 43 -         panic!(e);
[INFO] [stdout] 43 +         std::panic::panic_any(e);
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]   --> build.rs:48:16
[INFO] [stdout]    |
[INFO] [stdout] 48 |         panic!(e);
[INFO] [stdout]    |                ^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this usage of `panic!()` is deprecated; it will be a hard error in Rust 2021
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/edition-guide/rust-2021/panic-macro-consistency.html>
[INFO] [stdout] help: add a "{}" format string to `Display` the message
[INFO] [stdout]    |
[INFO] [stdout] 48 |         panic!("{}", e);
[INFO] [stdout]    |                +++++
[INFO] [stdout] help: or use std::panic::panic_any instead
[INFO] [stdout]    |
[INFO] [stdout] 48 -         panic!(e);
[INFO] [stdout] 48 +         std::panic::panic_any(e);
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]   --> build.rs:65:26
[INFO] [stdout]    |
[INFO] [stdout] 65 |         Err(e) => panic!(e),
[INFO] [stdout]    |                          ^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this usage of `panic!()` is deprecated; it will be a hard error in Rust 2021
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/edition-guide/rust-2021/panic-macro-consistency.html>
[INFO] [stdout] help: add a "{}" format string to `Display` the message
[INFO] [stdout]    |
[INFO] [stdout] 65 |         Err(e) => panic!("{}", e),
[INFO] [stdout]    |                          +++++
[INFO] [stdout] help: or use std::panic::panic_any instead
[INFO] [stdout]    |
[INFO] [stdout] 65 -         Err(e) => panic!(e),
[INFO] [stdout] 65 +         Err(e) => std::panic::panic_any(e),
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: failed to run custom build command for `rust-libcore v0.0.3 (/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/rust-libcore-1a3872de0448e4cb/build-script-build` (exit status: 101)
[INFO] [stderr]   --- stderr
[INFO] [stderr] 
[INFO] [stderr]   thread 'main' (37) panicked at build.rs:43:9:
[INFO] [stderr]   Box<dyn Any>
[INFO] [stderr]   stack backtrace:
[INFO] [stderr]      0:     0x62aa67820992 - 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:     0x62aa67820992 - 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:     0x62aa67820992 - std::sys::backtrace::_print_fmt::hf8d65ede198eeb54
[INFO] [stderr]                                  at /rustc/bb624dcb4c8ab987e10c0808d92d76f3b84dd117/library/std/src/sys/backtrace.rs:66:9
[INFO] [stderr]      3:     0x62aa67820992 - <std::sys::backtrace::BacktraceLock::print::DisplayBacktrace as core::fmt::Display>::fmt::h67edf0e4d33c343c
[INFO] [stderr]                                  at /rustc/bb624dcb4c8ab987e10c0808d92d76f3b84dd117/library/std/src/sys/backtrace.rs:39:26
[INFO] [stderr]      4:     0x62aa6782fd7f - core::fmt::rt::Argument::fmt::hef94184842aeafdd
[INFO] [stderr]                                  at /rustc/bb624dcb4c8ab987e10c0808d92d76f3b84dd117/library/core/src/fmt/rt.rs:173:76
[INFO] [stderr]      5:     0x62aa6782fd7f - core::fmt::write::hcf0c66b48a8fa606
[INFO] [stderr]                                  at /rustc/bb624dcb4c8ab987e10c0808d92d76f3b84dd117/library/core/src/fmt/mod.rs:1468:25
[INFO] [stderr]      6:     0x62aa677f5331 - std::io::default_write_fmt::h1ecb8c7cfa7da481
[INFO] [stderr]                                  at /rustc/bb624dcb4c8ab987e10c0808d92d76f3b84dd117/library/std/src/io/mod.rs:639:11
[INFO] [stderr]      7:     0x62aa677f5331 - std::io::Write::write_fmt::h051fe4a9e4fdbf48
[INFO] [stderr]                                  at /rustc/bb624dcb4c8ab987e10c0808d92d76f3b84dd117/library/std/src/io/mod.rs:1954:13
[INFO] [stderr]      8:     0x62aa677ff372 - std::sys::backtrace::BacktraceLock::print::h07e5435aa717b414
[INFO] [stderr]                                  at /rustc/bb624dcb4c8ab987e10c0808d92d76f3b84dd117/library/std/src/sys/backtrace.rs:42:9
[INFO] [stderr]      9:     0x62aa678011ac - std::panicking::default_hook::{{closure}}::h91001850288db5f7
[INFO] [stderr]                                  at /rustc/bb624dcb4c8ab987e10c0808d92d76f3b84dd117/library/std/src/panicking.rs:301:27
[INFO] [stderr]     10:     0x62aa67801006 - std::panicking::default_hook::h2346dbb704ef5512
[INFO] [stderr]                                  at /rustc/bb624dcb4c8ab987e10c0808d92d76f3b84dd117/library/std/src/panicking.rs:328:9
[INFO] [stderr]     11:     0x62aa67801835 - std::panicking::panic_with_hook::hd2b063a6090d23a4
[INFO] [stderr]                                  at /rustc/bb624dcb4c8ab987e10c0808d92d76f3b84dd117/library/std/src/panicking.rs:834:13
[INFO] [stderr]     12:     0x62aa677e6ed6 - std::panicking::begin_panic::{{closure}}::h4d845174497e63e7
[INFO] [stderr]     13:     0x62aa677e6bc6 - std::sys::backtrace::__rust_end_short_backtrace::h5884ba497cff9a5e
[INFO] [stderr]     14:     0x62aa677e6ea9 - std::panicking::begin_panic::h80c730ed49dc3997
[INFO] [stderr]     15:     0x62aa677e2219 - build_script_build::main::h8a6ebe4fc01aa35f
[INFO] [stderr]     16:     0x62aa677e3253 - core::ops::function::FnOnce::call_once::hf72cb6e150c14cf8
[INFO] [stderr]     17:     0x62aa677e6be6 - std::sys::backtrace::__rust_begin_short_backtrace::haa59b5f095e3e0a3
[INFO] [stderr]     18:     0x62aa677e3139 - std::rt::lang_start::{{closure}}::h05dac1dce0e8a1f8
[INFO] [stderr]     19:     0x62aa677f67c0 - core::ops::function::impls::<impl core::ops::function::FnOnce<A> for &F>::call_once::h4967fb77e0dfb65c
[INFO] [stderr]                                  at /rustc/bb624dcb4c8ab987e10c0808d92d76f3b84dd117/library/core/src/ops/function.rs:287:21
[INFO] [stderr]     20:     0x62aa677f67c0 - std::panicking::catch_unwind::do_call::hf7e87675c3e14c23
[INFO] [stderr]                                  at /rustc/bb624dcb4c8ab987e10c0808d92d76f3b84dd117/library/std/src/panicking.rs:590:40
[INFO] [stderr]     21:     0x62aa677f67c0 - std::panicking::catch_unwind::h26f0e342004b5114
[INFO] [stderr]                                  at /rustc/bb624dcb4c8ab987e10c0808d92d76f3b84dd117/library/std/src/panicking.rs:553:19
[INFO] [stderr]     22:     0x62aa677f67c0 - std::panic::catch_unwind::h9ee33ca17775d897
[INFO] [stderr]                                  at /rustc/bb624dcb4c8ab987e10c0808d92d76f3b84dd117/library/std/src/panic.rs:359:14
[INFO] [stderr]     23:     0x62aa677f67c0 - std::rt::lang_start_internal::{{closure}}::h243ba3495fa13cf8
[INFO] [stderr]                                  at /rustc/bb624dcb4c8ab987e10c0808d92d76f3b84dd117/library/std/src/rt.rs:175:24
[INFO] [stderr]     24:     0x62aa677f67c0 - std::panicking::catch_unwind::do_call::h819db0a7788e7259
[INFO] [stderr]                                  at /rustc/bb624dcb4c8ab987e10c0808d92d76f3b84dd117/library/std/src/panicking.rs:590:40
[INFO] [stderr]     25:     0x62aa677f67c0 - std::panicking::catch_unwind::h23e08fb4a7b9f405
[INFO] [stderr]                                  at /rustc/bb624dcb4c8ab987e10c0808d92d76f3b84dd117/library/std/src/panicking.rs:553:19
[INFO] [stderr]     26:     0x62aa677f67c0 - std::panic::catch_unwind::h7ca3d9eabb6135ff
[INFO] [stderr]                                  at /rustc/bb624dcb4c8ab987e10c0808d92d76f3b84dd117/library/std/src/panic.rs:359:14
[INFO] [stderr]     27:     0x62aa677f67c0 - std::rt::lang_start_internal::h06ad7395f4fda8d7
[INFO] [stderr]                                  at /rustc/bb624dcb4c8ab987e10c0808d92d76f3b84dd117/library/std/src/rt.rs:171:5
[INFO] [stderr]     28:     0x62aa677e3121 - std::rt::lang_start::h51bd7aa9bda3bb8f
[INFO] [stderr]     29:     0x62aa677e65d5 - main
[INFO] [stderr]     30:     0x73d0172c91ca - <unknown>
[INFO] [stderr]     31:     0x73d0172c928b - __libc_start_main
[INFO] [stderr]     32:     0x62aa677e19c5 - _start
[INFO] [stderr]     33:                0x0 - <unknown>
[INFO] running `Command { std: "docker" "inspect" "0caefe1c10cc3c3e5af07ad59d732af24f1928741bb5a28e8bd3018a109fb8c2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0caefe1c10cc3c3e5af07ad59d732af24f1928741bb5a28e8bd3018a109fb8c2", kill_on_drop: false }`
[INFO] [stdout] 0caefe1c10cc3c3e5af07ad59d732af24f1928741bb5a28e8bd3018a109fb8c2
