[INFO] fetching crate safe-write 0.1.2... [INFO] testing safe-write-0.1.2 against beta-2025-10-28 for beta-1.92-2 [INFO] extracting crate safe-write 0.1.2 into /workspace/builds/worker-3-tc2/source [INFO] started tweaking crates.io crate safe-write 0.1.2 [INFO] finished tweaking crates.io crate safe-write 0.1.2 [INFO] tweaked toml for crates.io crate safe-write 0.1.2 written to /workspace/builds/worker-3-tc2/source/Cargo.toml [INFO] validating manifest of crates.io crate safe-write 0.1.2 on toolchain beta-2025-10-28 [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2025-10-28" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] crate crates.io crate safe-write 0.1.2 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-2025-10-28" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2025-10-28" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 859a31a74a5e9c4e992490cd6716130cedac0721a2ec9e466ffbcd28eef98170 [INFO] running `Command { std: "docker" "start" "-a" "859a31a74a5e9c4e992490cd6716130cedac0721a2ec9e466ffbcd28eef98170", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "859a31a74a5e9c4e992490cd6716130cedac0721a2ec9e466ffbcd28eef98170", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "859a31a74a5e9c4e992490cd6716130cedac0721a2ec9e466ffbcd28eef98170", kill_on_drop: false }` [INFO] [stdout] 859a31a74a5e9c4e992490cd6716130cedac0721a2ec9e466ffbcd28eef98170 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2025-10-28" "build" "--frozen" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 515574e70e08780dda6f6708507c60f6d1bc5fe6951f5a859bce8887fdddb44b [INFO] running `Command { std: "docker" "start" "-a" "515574e70e08780dda6f6708507c60f6d1bc5fe6951f5a859bce8887fdddb44b", kill_on_drop: false }` [INFO] [stderr] Compiling fs-err v3.0.0 [INFO] [stderr] Compiling safe-write v0.1.2 (/opt/rustwide/workdir) [INFO] [stderr] Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.62s [INFO] running `Command { std: "docker" "inspect" "515574e70e08780dda6f6708507c60f6d1bc5fe6951f5a859bce8887fdddb44b", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "515574e70e08780dda6f6708507c60f6d1bc5fe6951f5a859bce8887fdddb44b", kill_on_drop: false }` [INFO] [stdout] 515574e70e08780dda6f6708507c60f6d1bc5fe6951f5a859bce8887fdddb44b [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2025-10-28" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] f1bdf6f3029cbc7cc7e54f287e01c516f655cd473a8632b92d2708001b9b4b26 [INFO] running `Command { std: "docker" "start" "-a" "f1bdf6f3029cbc7cc7e54f287e01c516f655cd473a8632b92d2708001b9b4b26", kill_on_drop: false }` [INFO] [stderr] Compiling rustix v0.38.42 [INFO] [stderr] Compiling bitflags v2.6.0 [INFO] [stderr] Compiling once_cell v1.20.2 [INFO] [stderr] Compiling tempfile v3.14.0 [INFO] [stderr] Compiling safe-write v0.1.2 (/opt/rustwide/workdir) [INFO] [stderr] Finished `test` profile [unoptimized + debuginfo] target(s) in 4.03s [INFO] running `Command { std: "docker" "inspect" "f1bdf6f3029cbc7cc7e54f287e01c516f655cd473a8632b92d2708001b9b4b26", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "f1bdf6f3029cbc7cc7e54f287e01c516f655cd473a8632b92d2708001b9b4b26", kill_on_drop: false }` [INFO] [stdout] f1bdf6f3029cbc7cc7e54f287e01c516f655cd473a8632b92d2708001b9b4b26 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2025-10-28" "test" "--frozen", kill_on_drop: false }` [INFO] [stdout] c30e8950d9a4a842c410c8e157947f73a5eed5d98e9f3a23f5b85b5da1935a50 [INFO] running `Command { std: "docker" "start" "-a" "c30e8950d9a4a842c410c8e157947f73a5eed5d98e9f3a23f5b85b5da1935a50", kill_on_drop: false }` [INFO] [stderr] Finished `test` profile [unoptimized + debuginfo] target(s) in 0.05s [INFO] [stderr] Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/safe_write-41f71232ae9fa960) [INFO] [stdout] [INFO] [stdout] running 3 tests [INFO] [stderr] Doc-tests safe_write [INFO] [stdout] test tests::test_basic_write ... ok [INFO] [stdout] test tests::test_nested_directory_creation ... ok [INFO] [stdout] test tests::test_overwrite_existing ... ok [INFO] [stdout] [INFO] [stdout] test result: ok. 3 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.01s [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] running 1 test [INFO] [stdout] test src/lib.rs - (line 13) ... FAILED [INFO] [stdout] [INFO] [stdout] failures: [INFO] [stdout] [INFO] [stdout] ---- src/lib.rs - (line 13) stdout ---- [INFO] [stdout] Test executable failed (exit status: 101). [INFO] [stdout] [INFO] [stdout] stderr: [INFO] [stdout] [INFO] [stdout] thread 'main' (58) panicked at src/lib.rs:8:36: [INFO] [stdout] Failed to write file: Custom { kind: ReadOnlyFilesystem, error: Error { kind: OpenFile, source: Os { code: 30, kind: ReadOnlyFilesystem, message: "Read-only file system" }, path: "example.tmp" } } [INFO] [stdout] stack backtrace: [INFO] [stdout] 0: 0x5a401c078ed2 - std::backtrace_rs::backtrace::libunwind::trace::h16acf28769fcd909 [INFO] [stdout] at /rustc/3b4dd9bf1410f8da6329baa36ce5e37673cbbd1f/library/std/src/../../backtrace/src/backtrace/libunwind.rs:117:9 [INFO] [stdout] 1: 0x5a401c078ed2 - std::backtrace_rs::backtrace::trace_unsynchronized::hb5541aa5d4f92513 [INFO] [stdout] at /rustc/3b4dd9bf1410f8da6329baa36ce5e37673cbbd1f/library/std/src/../../backtrace/src/backtrace/mod.rs:66:14 [INFO] [stdout] 2: 0x5a401c078ed2 - std::sys::backtrace::_print_fmt::h8ac8268cb667a306 [INFO] [stdout] at /rustc/3b4dd9bf1410f8da6329baa36ce5e37673cbbd1f/library/std/src/sys/backtrace.rs:66:9 [INFO] [stdout] 3: 0x5a401c078ed2 - ::fmt::h47627beda0767f4c [INFO] [stdout] at /rustc/3b4dd9bf1410f8da6329baa36ce5e37673cbbd1f/library/std/src/sys/backtrace.rs:39:26 [INFO] [stdout] 4: 0x5a401c087b3f - core::fmt::rt::Argument::fmt::h686a01ad57c1c92a [INFO] [stdout] at /rustc/3b4dd9bf1410f8da6329baa36ce5e37673cbbd1f/library/core/src/fmt/rt.rs:173:76 [INFO] [stdout] 5: 0x5a401c087b3f - core::fmt::write::h8a63064c67176fd8 [INFO] [stdout] at /rustc/3b4dd9bf1410f8da6329baa36ce5e37673cbbd1f/library/core/src/fmt/mod.rs:1469:25 [INFO] [stdout] 6: 0x5a401c056fa3 - std::io::default_write_fmt::hc257f38f86d39af6 [INFO] [stdout] at /rustc/3b4dd9bf1410f8da6329baa36ce5e37673cbbd1f/library/std/src/io/mod.rs:639:11 [INFO] [stdout] 7: 0x5a401c056fa3 - std::io::Write::write_fmt::h5e9b646cef91150b [INFO] [stdout] at /rustc/3b4dd9bf1410f8da6329baa36ce5e37673cbbd1f/library/std/src/io/mod.rs:1954:13 [INFO] [stdout] 8: 0x5a401c05c722 - std::sys::backtrace::BacktraceLock::print::h4634d27c0afbaebb [INFO] [stdout] at /rustc/3b4dd9bf1410f8da6329baa36ce5e37673cbbd1f/library/std/src/sys/backtrace.rs:42:9 [INFO] [stdout] 9: 0x5a401c05e1ac - std::panicking::default_hook::{{closure}}::h23e0299d4738b766 [INFO] [stdout] at /rustc/3b4dd9bf1410f8da6329baa36ce5e37673cbbd1f/library/std/src/panicking.rs:301:27 [INFO] [stdout] 10: 0x5a401c05e006 - std::panicking::default_hook::hfeec6294e8751b62 [INFO] [stdout] at /rustc/3b4dd9bf1410f8da6329baa36ce5e37673cbbd1f/library/std/src/panicking.rs:328:9 [INFO] [stdout] 11: 0x5a401c05e785 - std::panicking::panic_with_hook::hd57cd463d793ed79 [INFO] [stdout] at /rustc/3b4dd9bf1410f8da6329baa36ce5e37673cbbd1f/library/std/src/panicking.rs:834:13 [INFO] [stdout] 12: 0x5a401c05e61a - std::panicking::panic_handler::{{closure}}::hddd6216c3fddee3b [INFO] [stdout] at /rustc/3b4dd9bf1410f8da6329baa36ce5e37673cbbd1f/library/std/src/panicking.rs:707:13 [INFO] [stdout] 13: 0x5a401c05c859 - std::sys::backtrace::__rust_end_short_backtrace::h5e7a56f283378525 [INFO] [stdout] at /rustc/3b4dd9bf1410f8da6329baa36ce5e37673cbbd1f/library/std/src/sys/backtrace.rs:174:18 [INFO] [stdout] 14: 0x5a401c04b5fd - __rustc[256c90bb7e548b45]::rust_begin_unwind [INFO] [stdout] at /rustc/3b4dd9bf1410f8da6329baa36ce5e37673cbbd1f/library/std/src/panicking.rs:698:5 [INFO] [stdout] 15: 0x5a401c08b060 - core::panicking::panic_fmt::hf19c198748ef6a95 [INFO] [stdout] at /rustc/3b4dd9bf1410f8da6329baa36ce5e37673cbbd1f/library/core/src/panicking.rs:80:14 [INFO] [stdout] 16: 0x5a401c08a8e6 - core::result::unwrap_failed::he81173b5792ad6b0 [INFO] [stdout] at /rustc/3b4dd9bf1410f8da6329baa36ce5e37673cbbd1f/library/core/src/result.rs:1862:5 [INFO] [stdout] 17: 0x5a401c0456b0 - core::result::Result::expect::h73828bfc92b14db8 [INFO] [stdout] 18: 0x5a401c046444 - rust_out::main::_doctest_main_src_lib_rs_13_0::hc942f755a1214373 [INFO] [stdout] 19: 0x5a401c046406 - rust_out::main::he986860d8b7bc94f [INFO] [stdout] 20: 0x5a401c0450f3 - core::ops::function::FnOnce::call_once::hd0f888ea33950d2d [INFO] [stdout] 21: 0x5a401c044fd6 - std::sys::backtrace::__rust_begin_short_backtrace::h70a8cfcb1f800bff [INFO] [stdout] 22: 0x5a401c044e09 - std::rt::lang_start::{{closure}}::h03ca8d00642774ee [INFO] [stdout] 23: 0x5a401c0583d0 - core::ops::function::impls:: for &F>::call_once::hdf957eac011d0136 [INFO] [stdout] at /rustc/3b4dd9bf1410f8da6329baa36ce5e37673cbbd1f/library/core/src/ops/function.rs:287:21 [INFO] [stdout] 24: 0x5a401c0583d0 - std::panicking::catch_unwind::do_call::h9ff550f7799115e1 [INFO] [stdout] at /rustc/3b4dd9bf1410f8da6329baa36ce5e37673cbbd1f/library/std/src/panicking.rs:590:40 [INFO] [stdout] 25: 0x5a401c0583d0 - std::panicking::catch_unwind::ha7ce46787bb12905 [INFO] [stdout] at /rustc/3b4dd9bf1410f8da6329baa36ce5e37673cbbd1f/library/std/src/panicking.rs:553:19 [INFO] [stdout] 26: 0x5a401c0583d0 - std::panic::catch_unwind::h625b36596def7d39 [INFO] [stdout] at /rustc/3b4dd9bf1410f8da6329baa36ce5e37673cbbd1f/library/std/src/panic.rs:359:14 [INFO] [stdout] 27: 0x5a401c0583d0 - std::rt::lang_start_internal::{{closure}}::h4cbc9430de699e2c [INFO] [stdout] at /rustc/3b4dd9bf1410f8da6329baa36ce5e37673cbbd1f/library/std/src/rt.rs:175:24 [INFO] [stdout] 28: 0x5a401c0583d0 - std::panicking::catch_unwind::do_call::h5af2f11409a22e3e [INFO] [stdout] at /rustc/3b4dd9bf1410f8da6329baa36ce5e37673cbbd1f/library/std/src/panicking.rs:590:40 [INFO] [stdout] 29: 0x5a401c0583d0 - std::panicking::catch_unwind::hf64cf7b0d8070f52 [INFO] [stdout] at /rustc/3b4dd9bf1410f8da6329baa36ce5e37673cbbd1f/library/std/src/panicking.rs:553:19 [INFO] [stdout] 30: 0x5a401c0583d0 - std::panic::catch_unwind::h480b74763390cdcf [INFO] [stdout] at /rustc/3b4dd9bf1410f8da6329baa36ce5e37673cbbd1f/library/std/src/panic.rs:359:14 [INFO] [stdout] 31: 0x5a401c0583d0 - std::rt::lang_start_internal::h4b3d04f698aef094 [INFO] [stdout] at /rustc/3b4dd9bf1410f8da6329baa36ce5e37673cbbd1f/library/std/src/rt.rs:171:5 [INFO] [stdout] 32: 0x5a401c044df1 - std::rt::lang_start::h457230af78cce7e7 [INFO] [stdout] 33: 0x5a401c046465 - main [INFO] [stdout] 34: 0x7d034a7371ca - [INFO] [stdout] 35: 0x7d034a73728b - __libc_start_main [INFO] [stdout] 36: 0x5a401c044035 - _start [INFO] [stdout] 37: 0x0 - [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] failures: [INFO] [stdout] src/lib.rs - (line 13) [INFO] [stdout] [INFO] [stdout] test result: FAILED. 0 passed; 1 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.27s [INFO] [stdout] [INFO] [stderr] error: doctest failed, to rerun pass `--doc` [INFO] running `Command { std: "docker" "inspect" "c30e8950d9a4a842c410c8e157947f73a5eed5d98e9f3a23f5b85b5da1935a50", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "c30e8950d9a4a842c410c8e157947f73a5eed5d98e9f3a23f5b85b5da1935a50", kill_on_drop: false }` [INFO] [stdout] c30e8950d9a4a842c410c8e157947f73a5eed5d98e9f3a23f5b85b5da1935a50