[INFO] fetching crate mt_logger 3.0.2... [INFO] testing mt_logger-3.0.2 against master#350d0ef0ec0493e6d21cfb265cb8211a0e74d766 for pr-145330-1 [INFO] extracting crate mt_logger 3.0.2 into /workspace/builds/worker-1-tc1/source [INFO] started tweaking crates.io crate mt_logger 3.0.2 [INFO] finished tweaking crates.io crate mt_logger 3.0.2 [INFO] tweaked toml for crates.io crate mt_logger 3.0.2 written to /workspace/builds/worker-1-tc1/source/Cargo.toml [INFO] validating manifest of crates.io crate mt_logger 3.0.2 on toolchain 350d0ef0ec0493e6d21cfb265cb8211a0e74d766 [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+350d0ef0ec0493e6d21cfb265cb8211a0e74d766" "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" "+350d0ef0ec0493e6d21cfb265cb8211a0e74d766" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] Updating crates.io index [INFO] [stderr] Locking 38 packages to latest compatible versions [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+350d0ef0ec0493e6d21cfb265cb8211a0e74d766" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/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" "+350d0ef0ec0493e6d21cfb265cb8211a0e74d766" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 5ff785e1799e84ad1a15c98b7ea596233c2c1098c17b01c647dbbad092e21b85 [INFO] running `Command { std: "docker" "start" "-a" "5ff785e1799e84ad1a15c98b7ea596233c2c1098c17b01c647dbbad092e21b85", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "5ff785e1799e84ad1a15c98b7ea596233c2c1098c17b01c647dbbad092e21b85", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "5ff785e1799e84ad1a15c98b7ea596233c2c1098c17b01c647dbbad092e21b85", kill_on_drop: false }` [INFO] [stdout] 5ff785e1799e84ad1a15c98b7ea596233c2c1098c17b01c647dbbad092e21b85 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/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=forbid" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-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" "+350d0ef0ec0493e6d21cfb265cb8211a0e74d766" "build" "--frozen" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 2dd185754405b46e2e9bd267b7a8d2dcb78958992b6420d96c39d52cb727a019 [INFO] running `Command { std: "docker" "start" "-a" "2dd185754405b46e2e9bd267b7a8d2dcb78958992b6420d96c39d52cb727a019", kill_on_drop: false }` [INFO] [stderr] Compiling num-traits v0.2.19 [INFO] [stderr] Compiling chrono v0.4.42 [INFO] [stderr] Compiling mt_logger v3.0.2 (/opt/rustwide/workdir) [INFO] [stderr] Finished `dev` profile [unoptimized + debuginfo] target(s) in 4.12s [INFO] running `Command { std: "docker" "inspect" "2dd185754405b46e2e9bd267b7a8d2dcb78958992b6420d96c39d52cb727a019", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "2dd185754405b46e2e9bd267b7a8d2dcb78958992b6420d96c39d52cb727a019", kill_on_drop: false }` [INFO] [stdout] 2dd185754405b46e2e9bd267b7a8d2dcb78958992b6420d96c39d52cb727a019 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/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=forbid" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-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" "+350d0ef0ec0493e6d21cfb265cb8211a0e74d766" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 78461323106e66017ec2ca13005211bf46f40561505a99014a90fad99c1a4c6d [INFO] running `Command { std: "docker" "start" "-a" "78461323106e66017ec2ca13005211bf46f40561505a99014a90fad99c1a4c6d", kill_on_drop: false }` [INFO] [stderr] Compiling aho-corasick v1.1.3 [INFO] [stderr] Compiling regex-automata v0.4.11 [INFO] [stderr] Compiling regex v1.11.3 [INFO] [stderr] Compiling mt_logger v3.0.2 (/opt/rustwide/workdir) [INFO] [stderr] Finished `test` profile [unoptimized + debuginfo] target(s) in 9.49s [INFO] running `Command { std: "docker" "inspect" "78461323106e66017ec2ca13005211bf46f40561505a99014a90fad99c1a4c6d", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "78461323106e66017ec2ca13005211bf46f40561505a99014a90fad99c1a4c6d", kill_on_drop: false }` [INFO] [stdout] 78461323106e66017ec2ca13005211bf46f40561505a99014a90fad99c1a4c6d [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/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=forbid" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-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" "+350d0ef0ec0493e6d21cfb265cb8211a0e74d766" "test" "--frozen", kill_on_drop: false }` [INFO] [stdout] 6843f204a80d487d60ad40b089225dc8b774cf170cfa05f2585915a0b24ea075 [INFO] running `Command { std: "docker" "start" "-a" "6843f204a80d487d60ad40b089225dc8b774cf170cfa05f2585915a0b24ea075", kill_on_drop: false }` [INFO] [stderr] Finished `test` profile [unoptimized + debuginfo] target(s) in 0.06s [INFO] [stderr] Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/mt_logger-663bcc960a932a43) [INFO] [stdout] [INFO] [stdout] running 3 tests [INFO] [stdout] test tests::format_verification ... FAILED [INFO] [stdout] test tests::flush_test ... FAILED [INFO] [stdout] test tests::outputstream_verification ... FAILED [INFO] [stdout] [INFO] [stdout] failures: [INFO] [stdout] [INFO] [stdout] ---- tests::format_verification stdout ---- [INFO] [stdout] 2025-10-02T03:21:11.988170825: Entered LogReceiver thread. [INFO] [stdout] [INFO] [stdout] thread 'log_receiver' (21) panicked at src/receiver.rs:122:27: [INFO] [stdout] Failed to create logs directory. Error: Read-only file system (os error 30) [INFO] [stdout] stack backtrace: [INFO] [stdout] 0: 0x5c6d35dbd8b2 - std::backtrace_rs::backtrace::libunwind::trace::h0fb8082ca5562a61 [INFO] [stdout] at /rustc/350d0ef0ec0493e6d21cfb265cb8211a0e74d766/library/std/src/../../backtrace/src/backtrace/libunwind.rs:117:9 [INFO] [stdout] 1: 0x5c6d35dbd8b2 - std::backtrace_rs::backtrace::trace_unsynchronized::hfaa258994374a3cd [INFO] [stdout] at /rustc/350d0ef0ec0493e6d21cfb265cb8211a0e74d766/library/std/src/../../backtrace/src/backtrace/mod.rs:66:14 [INFO] [stdout] 2: 0x5c6d35dbd8b2 - std::sys::backtrace::_print_fmt::h11496fe34963a885 [INFO] [stdout] at /rustc/350d0ef0ec0493e6d21cfb265cb8211a0e74d766/library/std/src/sys/backtrace.rs:66:9 [INFO] [stdout] 3: 0x5c6d35dbd8b2 - ::fmt::hff1a9408d012ee89 [INFO] [stdout] at /rustc/350d0ef0ec0493e6d21cfb265cb8211a0e74d766/library/std/src/sys/backtrace.rs:39:26 [INFO] [stdout] 4: 0x5c6d35de258f - core::fmt::rt::Argument::fmt::hf11195b61445f5d1 [INFO] [stdout] at /rustc/350d0ef0ec0493e6d21cfb265cb8211a0e74d766/library/core/src/fmt/rt.rs:173:76 [INFO] [stdout] 5: 0x5c6d35de258f - core::fmt::write::h2f1fc679f228cc52 [INFO] [stdout] at /rustc/350d0ef0ec0493e6d21cfb265cb8211a0e74d766/library/core/src/fmt/mod.rs:1468:25 [INFO] [stdout] 6: 0x5c6d35daa223 - std::io::default_write_fmt::h12bd533187bc883d [INFO] [stdout] at /rustc/350d0ef0ec0493e6d21cfb265cb8211a0e74d766/library/std/src/io/mod.rs:639:11 [INFO] [stdout] 7: 0x5c6d35daa223 - std::io::Write::write_fmt::h926a1fdfdcb90065 [INFO] [stdout] at /rustc/350d0ef0ec0493e6d21cfb265cb8211a0e74d766/library/std/src/io/mod.rs:1954:13 [INFO] [stdout] 8: 0x5c6d35dbd702 - std::sys::backtrace::BacktraceLock::print::h28bfdbcac6d3828b [INFO] [stdout] at /rustc/350d0ef0ec0493e6d21cfb265cb8211a0e74d766/library/std/src/sys/backtrace.rs:42:9 [INFO] [stdout] 9: 0x5c6d35da8a4c - std::panicking::default_hook::{{closure}}::h1f968e3a24b0e3b4 [INFO] [stdout] at /rustc/350d0ef0ec0493e6d21cfb265cb8211a0e74d766/library/std/src/panicking.rs:301:27 [INFO] [stdout] 10: 0x5c6d35da88c9 - std::panicking::default_hook::h43da101644971931 [INFO] [stdout] at /rustc/350d0ef0ec0493e6d21cfb265cb8211a0e74d766/library/std/src/panicking.rs:325:9 [INFO] [stdout] 11: 0x5c6d35a9721e - as core::ops::function::Fn>::call::h4b2012949041da5d [INFO] [stdout] at /rustc/350d0ef0ec0493e6d21cfb265cb8211a0e74d766/library/alloc/src/boxed.rs:1985:9 [INFO] [stdout] 12: 0x5c6d35a9721e - test::test_main_with_exit_callback::{{closure}}::h53c9154cdc260357 [INFO] [stdout] at /rustc/350d0ef0ec0493e6d21cfb265cb8211a0e74d766/library/test/src/lib.rs:145:21 [INFO] [stdout] 13: 0x5c6d35da9053 - as core::ops::function::Fn>::call::h911f2e3e7e84b764 [INFO] [stdout] at /rustc/350d0ef0ec0493e6d21cfb265cb8211a0e74d766/library/alloc/src/boxed.rs:1985:9 [INFO] [stdout] 14: 0x5c6d35da9053 - std::panicking::panic_with_hook::hb4e916c3e65eccec [INFO] [stdout] at /rustc/350d0ef0ec0493e6d21cfb265cb8211a0e74d766/library/std/src/panicking.rs:842:13 [INFO] [stdout] 15: 0x5c6d35dbd28a - std::panicking::panic_handler::{{closure}}::hbff715d0475cf1bd [INFO] [stdout] at /rustc/350d0ef0ec0493e6d21cfb265cb8211a0e74d766/library/std/src/panicking.rs:707:13 [INFO] [stdout] 16: 0x5c6d35dbd1e9 - std::sys::backtrace::__rust_end_short_backtrace::hd6f43484e45a4955 [INFO] [stdout] at /rustc/350d0ef0ec0493e6d21cfb265cb8211a0e74d766/library/std/src/sys/backtrace.rs:174:18 [INFO] [stdout] 17: 0x5c6d35da95bd - __rustc[b29d3319de9a3146]::rust_begin_unwind [INFO] [stdout] at /rustc/350d0ef0ec0493e6d21cfb265cb8211a0e74d766/library/std/src/panicking.rs:698:5 [INFO] [stdout] 18: 0x5c6d35de9220 - core::panicking::panic_fmt::h5f8d281875be5ff1 [INFO] [stdout] at /rustc/350d0ef0ec0493e6d21cfb265cb8211a0e74d766/library/core/src/panicking.rs:75:14 [INFO] [stdout] 19: 0x5c6d35a6ba6c - mt_logger::receiver::Receiver::main::h5822960d975fea62 [INFO] [stdout] at /opt/rustwide/workdir/src/receiver.rs:122:27 [INFO] [stdout] 20: 0x5c6d35a7986d - mt_logger::MtLogger::new::{{closure}}::he09d343b1e337f24 [INFO] [stdout] at /opt/rustwide/workdir/src/lib.rs:167:41 [INFO] [stdout] 21: 0x5c6d35a6ca56 - std::sys::backtrace::__rust_begin_short_backtrace::ha8f39ec4be5da02e [INFO] [stdout] at /rustc/350d0ef0ec0493e6d21cfb265cb8211a0e74d766/library/std/src/sys/backtrace.rs:158:18 [INFO] [stdout] 22: 0x5c6d35a7b0b3 - std::thread::Builder::spawn_unchecked_::{{closure}}::{{closure}}::hc4d8d5ee29ebc3fe [INFO] [stdout] at /rustc/350d0ef0ec0493e6d21cfb265cb8211a0e74d766/library/std/src/thread/mod.rs:559:17 [INFO] [stdout] 23: 0x5c6d35a7a330 - as core::ops::function::FnOnce<()>>::call_once::h84cbae7bd9d797aa [INFO] [stdout] at /rustc/350d0ef0ec0493e6d21cfb265cb8211a0e74d766/library/core/src/panic/unwind_safe.rs:272:9 [INFO] [stdout] 24: 0x5c6d35a74a1f - std::panicking::catch_unwind::do_call::h32a6f2b2d74e0f83 [INFO] [stdout] at /rustc/350d0ef0ec0493e6d21cfb265cb8211a0e74d766/library/std/src/panicking.rs:590:40 [INFO] [stdout] 25: 0x5c6d35a7cceb - __rust_try [INFO] [stdout] 26: 0x5c6d35a7ae4a - std::panicking::catch_unwind::ha476ae48f6a8dc18 [INFO] [stdout] at /rustc/350d0ef0ec0493e6d21cfb265cb8211a0e74d766/library/std/src/panicking.rs:553:19 [INFO] [stdout] 27: 0x5c6d35a7ae4a - std::panic::catch_unwind::h73e19640fd45aaad [INFO] [stdout] at /rustc/350d0ef0ec0493e6d21cfb265cb8211a0e74d766/library/std/src/panic.rs:359:14 [INFO] [stdout] 28: 0x5c6d35a7ae4a - std::thread::Builder::spawn_unchecked_::{{closure}}::hb5fe5f90ae338b07 [INFO] [stdout] at /rustc/350d0ef0ec0493e6d21cfb265cb8211a0e74d766/library/std/src/thread/mod.rs:557:30 [INFO] [stdout] 29: 0x5c6d35a637de - core::ops::function::FnOnce::call_once{{vtable.shim}}::h3454edb9df87e507 [INFO] [stdout] at /rustc/350d0ef0ec0493e6d21cfb265cb8211a0e74d766/library/core/src/ops/function.rs:253:5 [INFO] [stdout] 30: 0x5c6d35d929cf - as core::ops::function::FnOnce>::call_once::h4ab26c07513156cc [INFO] [stdout] at /rustc/350d0ef0ec0493e6d21cfb265cb8211a0e74d766/library/alloc/src/boxed.rs:1971:9 [INFO] [stdout] 31: 0x5c6d35d929cf - std::sys::pal::unix::thread::Thread::new::thread_start::h66ff1bba185a50cf [INFO] [stdout] at /rustc/350d0ef0ec0493e6d21cfb265cb8211a0e74d766/library/std/src/sys/pal/unix/thread.rs:107:17 [INFO] [stdout] 32: 0x7cc9a6d8aaa4 - [INFO] [stdout] 33: 0x7cc9a6e17a34 - clone [INFO] [stdout] 34: 0x0 - [INFO] [stdout] Flushing all messages to their output... [INFO] [stdout] Error: RecvError(RecvError) [INFO] [stdout] [INFO] [stdout] ---- tests::flush_test stdout ---- [INFO] [stdout] Initial message count: 0 [INFO] [stdout] Sending messages... [INFO] [stdout] Error: SendError(SendError { .. }) [INFO] [stdout] [INFO] [stdout] ---- tests::outputstream_verification stdout ---- [INFO] [stdout] Flushing all messages to their output... [INFO] [stdout] Error: SendError(SendError { .. }) [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] failures: [INFO] [stdout] tests::flush_test [INFO] [stdout] tests::format_verification [INFO] [stdout] tests::outputstream_verification [INFO] [stdout] [INFO] [stdout] test result: FAILED. 0 passed; 3 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.04s [INFO] [stdout] [INFO] [stderr] error: test failed, to rerun pass `--lib` [INFO] running `Command { std: "docker" "inspect" "6843f204a80d487d60ad40b089225dc8b774cf170cfa05f2585915a0b24ea075", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "6843f204a80d487d60ad40b089225dc8b774cf170cfa05f2585915a0b24ea075", kill_on_drop: false }` [INFO] [stdout] 6843f204a80d487d60ad40b089225dc8b774cf170cfa05f2585915a0b24ea075