[INFO] fetching crate ein-ffi 0.6.0... [INFO] testing ein-ffi-0.6.0 against beta-2025-09-21 for beta-1.91-3 [INFO] extracting crate ein-ffi 0.6.0 into /workspace/builds/worker-2-tc2/source [INFO] started tweaking crates.io crate ein-ffi 0.6.0 [INFO] finished tweaking crates.io crate ein-ffi 0.6.0 [INFO] tweaked toml for crates.io crate ein-ffi 0.6.0 written to /workspace/builds/worker-2-tc2/source/Cargo.toml [INFO] validating manifest of crates.io crate ein-ffi 0.6.0 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] 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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2025-09-21" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 9a577bc388bad6c7c4216fd180352697df472d975a786d5caeb2df522469d3d5 [INFO] running `Command { std: "docker" "start" "-a" "9a577bc388bad6c7c4216fd180352697df472d975a786d5caeb2df522469d3d5", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "9a577bc388bad6c7c4216fd180352697df472d975a786d5caeb2df522469d3d5", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "9a577bc388bad6c7c4216fd180352697df472d975a786d5caeb2df522469d3d5", kill_on_drop: false }` [INFO] [stdout] 9a577bc388bad6c7c4216fd180352697df472d975a786d5caeb2df522469d3d5 [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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2025-09-21" "build" "--frozen" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 20aa4cada271788ea09b46e765d79e543224943fa57640165ddb872e57a3f08d [INFO] running `Command { std: "docker" "start" "-a" "20aa4cada271788ea09b46e765d79e543224943fa57640165ddb872e57a3f08d", kill_on_drop: false }` [INFO] [stderr] Compiling ein-ffi v0.6.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: calling this function with a null pointer is undefined behavior, even if the result of the function is unused [INFO] [stdout] --> src/arc/arc_buffer.rs:43:17 [INFO] [stdout] | [INFO] [stdout] 43 | std::slice::from_raw_parts(null(), 0) [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^------^^^^ [INFO] [stdout] | | [INFO] [stdout] | null pointer originates from here [INFO] [stdout] | [INFO] [stdout] = help: for more information, visit and [INFO] [stdout] = note: `#[warn(invalid_null_arguments)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: calling this function with a null pointer is undefined behavior, even if the result of the function is unused [INFO] [stdout] --> src/arc/arc_buffer.rs:55:17 [INFO] [stdout] | [INFO] [stdout] 55 | std::slice::from_raw_parts_mut(null_mut(), 0) [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^----------^^^^ [INFO] [stdout] | | [INFO] [stdout] | null pointer originates from here [INFO] [stdout] | [INFO] [stdout] = help: for more information, visit and [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.30s [INFO] running `Command { std: "docker" "inspect" "20aa4cada271788ea09b46e765d79e543224943fa57640165ddb872e57a3f08d", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "20aa4cada271788ea09b46e765d79e543224943fa57640165ddb872e57a3f08d", kill_on_drop: false }` [INFO] [stdout] 20aa4cada271788ea09b46e765d79e543224943fa57640165ddb872e57a3f08d [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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2025-09-21" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 7f47e60ea617c0d364780e05dc5e97096953626d188ea6674ad0611277c00eed [INFO] running `Command { std: "docker" "start" "-a" "7f47e60ea617c0d364780e05dc5e97096953626d188ea6674ad0611277c00eed", kill_on_drop: false }` [INFO] [stderr] Compiling ein-ffi v0.6.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: calling this function with a null pointer is undefined behavior, even if the result of the function is unused [INFO] [stdout] --> src/arc/arc_buffer.rs:43:17 [INFO] [stdout] | [INFO] [stdout] 43 | std::slice::from_raw_parts(null(), 0) [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^------^^^^ [INFO] [stdout] | | [INFO] [stdout] | null pointer originates from here [INFO] [stdout] | [INFO] [stdout] = help: for more information, visit and [INFO] [stdout] = note: `#[warn(invalid_null_arguments)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: calling this function with a null pointer is undefined behavior, even if the result of the function is unused [INFO] [stdout] --> src/arc/arc_buffer.rs:55:17 [INFO] [stdout] | [INFO] [stdout] 55 | std::slice::from_raw_parts_mut(null_mut(), 0) [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^----------^^^^ [INFO] [stdout] | | [INFO] [stdout] | null pointer originates from here [INFO] [stdout] | [INFO] [stdout] = help: for more information, visit and [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: calling this function with a null pointer is undefined behavior, even if the result of the function is unused [INFO] [stdout] --> src/arc/arc_buffer.rs:43:17 [INFO] [stdout] | [INFO] [stdout] 43 | std::slice::from_raw_parts(null(), 0) [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^------^^^^ [INFO] [stdout] | | [INFO] [stdout] | null pointer originates from here [INFO] [stdout] | [INFO] [stdout] = help: for more information, visit and [INFO] [stdout] = note: `#[warn(invalid_null_arguments)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: calling this function with a null pointer is undefined behavior, even if the result of the function is unused [INFO] [stdout] --> src/arc/arc_buffer.rs:55:17 [INFO] [stdout] | [INFO] [stdout] 55 | std::slice::from_raw_parts_mut(null_mut(), 0) [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^----------^^^^ [INFO] [stdout] | | [INFO] [stdout] | null pointer originates from here [INFO] [stdout] | [INFO] [stdout] = help: for more information, visit and [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused return value of `from` that must be used [INFO] [stdout] --> src/arc/arc_buffer.rs:114:9 [INFO] [stdout] | [INFO] [stdout] 114 | ArcBuffer::from(vec![0u8; 42].as_slice()); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_must_use)]` (part of `#[warn(unused)]`) on by default [INFO] [stdout] help: use `let _ = ...` to ignore the resulting value [INFO] [stdout] | [INFO] [stdout] 114 | let _ = ArcBuffer::from(vec![0u8; 42].as_slice()); [INFO] [stdout] | +++++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused return value of `from` that must be used [INFO] [stdout] --> src/arc/arc_buffer.rs:119:9 [INFO] [stdout] | [INFO] [stdout] 119 | ArcBuffer::from("hello".as_bytes()); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] help: use `let _ = ...` to ignore the resulting value [INFO] [stdout] | [INFO] [stdout] 119 | let _ = ArcBuffer::from("hello".as_bytes()); [INFO] [stdout] | +++++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `test` profile [unoptimized + debuginfo] target(s) in 0.64s [INFO] running `Command { std: "docker" "inspect" "7f47e60ea617c0d364780e05dc5e97096953626d188ea6674ad0611277c00eed", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "7f47e60ea617c0d364780e05dc5e97096953626d188ea6674ad0611277c00eed", kill_on_drop: false }` [INFO] [stdout] 7f47e60ea617c0d364780e05dc5e97096953626d188ea6674ad0611277c00eed [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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2025-09-21" "test" "--frozen", kill_on_drop: false }` [INFO] [stdout] 471bc41343d85646000b6d7265124becdb9cb6caf34cf58c866bc909210ea2d7 [INFO] running `Command { std: "docker" "start" "-a" "471bc41343d85646000b6d7265124becdb9cb6caf34cf58c866bc909210ea2d7", kill_on_drop: false }` [INFO] [stderr] warning: calling this function with a null pointer is undefined behavior, even if the result of the function is unused [INFO] [stderr] --> src/arc/arc_buffer.rs:43:17 [INFO] [stderr] | [INFO] [stderr] 43 | std::slice::from_raw_parts(null(), 0) [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^------^^^^ [INFO] [stderr] | | [INFO] [stderr] | null pointer originates from here [INFO] [stderr] | [INFO] [stderr] = help: for more information, visit and [INFO] [stderr] = note: `#[warn(invalid_null_arguments)]` on by default [INFO] [stderr] [INFO] [stderr] warning: calling this function with a null pointer is undefined behavior, even if the result of the function is unused [INFO] [stderr] --> src/arc/arc_buffer.rs:55:17 [INFO] [stderr] | [INFO] [stderr] 55 | std::slice::from_raw_parts_mut(null_mut(), 0) [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^----------^^^^ [INFO] [stderr] | | [INFO] [stderr] | null pointer originates from here [INFO] [stderr] | [INFO] [stderr] = help: for more information, visit and [INFO] [stderr] [INFO] [stderr] warning: `ein-ffi` (lib) generated 2 warnings [INFO] [stderr] warning: unused return value of `from` that must be used [INFO] [stderr] --> src/arc/arc_buffer.rs:114:9 [INFO] [stderr] | [INFO] [stderr] 114 | ArcBuffer::from(vec![0u8; 42].as_slice()); [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_must_use)]` (part of `#[warn(unused)]`) on by default [INFO] [stderr] help: use `let _ = ...` to ignore the resulting value [INFO] [stderr] | [INFO] [stderr] 114 | let _ = ArcBuffer::from(vec![0u8; 42].as_slice()); [INFO] [stderr] | +++++++ [INFO] [stderr] [INFO] [stderr] warning: unused return value of `from` that must be used [INFO] [stderr] --> src/arc/arc_buffer.rs:119:9 [INFO] [stderr] | [INFO] [stderr] 119 | ArcBuffer::from("hello".as_bytes()); [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] help: use `let _ = ...` to ignore the resulting value [INFO] [stderr] | [INFO] [stderr] 119 | let _ = ArcBuffer::from("hello".as_bytes()); [INFO] [stderr] | +++++++ [INFO] [stderr] [INFO] [stderr] warning: `ein-ffi` (lib test) generated 4 warnings (2 duplicates) [INFO] [stderr] Finished `test` profile [unoptimized + debuginfo] target(s) in 0.02s [INFO] [stderr] Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/ein_ffi-dd9b8c367af1a270) [INFO] [stdout] [INFO] [stdout] running 24 tests [INFO] [stderr] [INFO] [stderr] thread 'string::tests::join_empty' (42) panicked at src/arc/arc_buffer.rs:55:17: [INFO] [stderr] unsafe precondition(s) violated: slice::from_raw_parts_mut requires the pointer to be aligned and non-null, and the total size of the slice not to exceed `isize::MAX` [INFO] [stderr] [INFO] [stderr] This indicates a bug in the program. This Undefined Behavior check is optional, and cannot be relied on for safety. [INFO] [stderr] stack backtrace: [INFO] [stdout] test arc::arc_block::tests::clone ... ok [INFO] [stdout] test arc::arc_buffer::tests::clone ... ok [INFO] [stdout] test arc::arc_buffer::tests::convert_from_vec ... ok [INFO] [stdout] test arc::arc_buffer::tests::create_buffer ... ok [INFO] [stdout] test arc::arc_buffer::tests::create_zero_sized_buffer ... ok [INFO] [stderr] 0: 0x654daead4a42 - 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: 0x654daead4a42 - 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: 0x654daead4a42 - std::sys::backtrace::_print_fmt::hf8d65ede198eeb54 [INFO] [stderr] at /rustc/bb624dcb4c8ab987e10c0808d92d76f3b84dd117/library/std/src/sys/backtrace.rs:66:9 [INFO] [stderr] 3: 0x654daead4a42 - ::fmt::h67edf0e4d33c343c [INFO] [stderr] at /rustc/bb624dcb4c8ab987e10c0808d92d76f3b84dd117/library/std/src/sys/backtrace.rs:39:26 [INFO] [stderr] 4: 0x654daeae4b7f - core::fmt::rt::Argument::fmt::hef94184842aeafdd [INFO] [stderr] at /rustc/bb624dcb4c8ab987e10c0808d92d76f3b84dd117/library/core/src/fmt/rt.rs:173:76 [INFO] [stderr] 5: 0x654daeae4b7f - core::fmt::write::hcf0c66b48a8fa606 [INFO] [stderr] at /rustc/bb624dcb4c8ab987e10c0808d92d76f3b84dd117/library/core/src/fmt/mod.rs:1468:25 [INFO] [stderr] 6: 0x654daeaa1d11 - std::io::default_write_fmt::h1ecb8c7cfa7da481 [INFO] [stderr] at /rustc/bb624dcb4c8ab987e10c0808d92d76f3b84dd117/library/std/src/io/mod.rs:639:11 [INFO] [stderr] 7: 0x654daeaa1d11 - std::io::Write::write_fmt::h051fe4a9e4fdbf48 [INFO] [stderr] at /rustc/bb624dcb4c8ab987e10c0808d92d76f3b84dd117/library/std/src/io/mod.rs:1954:13 [INFO] [stderr] 8: 0x654daeaae012 - std::sys::backtrace::BacktraceLock::print::h07e5435aa717b414 [INFO] [stderr] at /rustc/bb624dcb4c8ab987e10c0808d92d76f3b84dd117/library/std/src/sys/backtrace.rs:42:9 [INFO] [stderr] 9: 0x654daeab2b5f - std::panicking::default_hook::{{closure}}::h91001850288db5f7 [INFO] [stderr] at /rustc/bb624dcb4c8ab987e10c0808d92d76f3b84dd117/library/std/src/panicking.rs:301:27 [INFO] [stderr] 10: 0x654daeab29b9 - std::panicking::default_hook::h2346dbb704ef5512 [INFO] [stderr] at /rustc/bb624dcb4c8ab987e10c0808d92d76f3b84dd117/library/std/src/panicking.rs:328:9 [INFO] [stderr] 11: 0x654daea735be - as core::ops::function::Fn>::call::h18383b2e29377420 [INFO] [stderr] at /rustc/bb624dcb4c8ab987e10c0808d92d76f3b84dd117/library/alloc/src/boxed.rs:1999:9 [INFO] [stderr] 12: 0x654daea735be - test::test_main_with_exit_callback::{{closure}}::h272d7ef99aef06dc [INFO] [stderr] at /rustc/bb624dcb4c8ab987e10c0808d92d76f3b84dd117/library/test/src/lib.rs:145:21 [INFO] [stderr] 13: 0x654daeab321f - as core::ops::function::Fn>::call::h6dba6e441651a0d1 [INFO] [stderr] at /rustc/bb624dcb4c8ab987e10c0808d92d76f3b84dd117/library/alloc/src/boxed.rs:1999:9 [INFO] [stderr] 14: 0x654daeab321f - std::panicking::panic_with_hook::hd2b063a6090d23a4 [INFO] [stderr] at /rustc/bb624dcb4c8ab987e10c0808d92d76f3b84dd117/library/std/src/panicking.rs:842:13 [INFO] [stderr] 15: 0x654daeab3046 - std::panicking::panic_handler::{{closure}}::he666d95f139a333e [INFO] [stderr] at /rustc/bb624dcb4c8ab987e10c0808d92d76f3b84dd117/library/std/src/panicking.rs:700:13 [INFO] [stderr] 16: 0x654daeaae149 - std::sys::backtrace::__rust_end_short_backtrace::h631ad224854ebee5 [INFO] [stderr] at /rustc/bb624dcb4c8ab987e10c0808d92d76f3b84dd117/library/std/src/sys/backtrace.rs:174:18 [INFO] [stderr] 17: 0x654daea9648d - __rustc[1d67440d6e82e4f]::rust_begin_unwind [INFO] [stderr] at /rustc/bb624dcb4c8ab987e10c0808d92d76f3b84dd117/library/std/src/panicking.rs:698:5 [INFO] [stderr] 18: 0x654daeaec20d - core::panicking::panic_nounwind_fmt::runtime::hf619e8fd73995337 [INFO] [stderr] at /rustc/bb624dcb4c8ab987e10c0808d92d76f3b84dd117/library/core/src/panicking.rs:117:22 [INFO] [stderr] 19: 0x654daeaec20d - core::panicking::panic_nounwind_fmt::hc177e1bd7a48be0d [INFO] [stderr] at /rustc/bb624dcb4c8ab987e10c0808d92d76f3b84dd117/library/core/src/intrinsics/mod.rs:2435:9 [INFO] [stderr] 20: 0x654daea4de79 - core::slice::raw::from_raw_parts_mut::precondition_check::h1df09fbb9d6591be [INFO] [stderr] at /rustc/bb624dcb4c8ab987e10c0808d92d76f3b84dd117/library/core/src/ub_checks.rs:72:21 [INFO] [stderr] 21: 0x654daea4dbe7 - core::slice::raw::from_raw_parts_mut::hab56c10dc109f3e5 [INFO] [stderr] at /rustc/bb624dcb4c8ab987e10c0808d92d76f3b84dd117/library/core/src/ub_checks.rs:77:17 [INFO] [stderr] 22: 0x654daea4f255 - ein_ffi::arc::arc_buffer::ArcBuffer::as_slice_mut::hba6e1bcfc706a7f3 [INFO] [stderr] at /opt/rustwide/workdir/src/arc/arc_buffer.rs:55:17 [INFO] [stderr] 23: 0x654daea52693 - >::from::he6d3e226c9c7a7c6 [INFO] [stderr] at /opt/rustwide/workdir/src/arc/arc_buffer.rs:83:16 [INFO] [stderr] 24: 0x654daea4e373 - >::into::hbbfc8d1c46eecbdd [INFO] [stderr] at /rustc/bb624dcb4c8ab987e10c0808d92d76f3b84dd117/library/core/src/convert/mod.rs:778:9 [INFO] [stderr] 25: 0x654daea5258a - >::from::h0b31361273b93d64 [INFO] [stderr] at /opt/rustwide/workdir/src/string.rs:88:27 [INFO] [stderr] 26: 0x654daea4e343 - >::into::h51cc1c375ec874e3 [INFO] [stderr] at /rustc/bb624dcb4c8ab987e10c0808d92d76f3b84dd117/library/core/src/convert/mod.rs:778:9 [INFO] [stderr] 27: 0x654daea52214 - >::from::hafe2a4cab39488a7 [INFO] [stderr] at /opt/rustwide/workdir/src/string.rs:95:27 [INFO] [stderr] 28: 0x654daea5082f - ein_ffi::string::tests::join_empty::he7610672761a842d [INFO] [stderr] at /opt/rustwide/workdir/src/string.rs:126:13 [INFO] [stderr] 29: 0x654daea50a27 - ein_ffi::string::tests::join_empty::{{closure}}::hfed21846fc15f3ef [INFO] [stderr] at /opt/rustwide/workdir/src/string.rs:124:20 [INFO] [stderr] 30: 0x654daea4b866 - core::ops::function::FnOnce::call_once::h6c29f94ec50fb111 [INFO] [stderr] at /rustc/bb624dcb4c8ab987e10c0808d92d76f3b84dd117/library/core/src/ops/function.rs:250:5 [INFO] [stderr] 31: 0x654daea7337b - core::ops::function::FnOnce::call_once::h70887edf07a630ba [INFO] [stderr] at /rustc/bb624dcb4c8ab987e10c0808d92d76f3b84dd117/library/core/src/ops/function.rs:250:5 [INFO] [stderr] 32: 0x654daea7337b - test::__rust_begin_short_backtrace::h27763c4cbbdb8601 [INFO] [stderr] at /rustc/bb624dcb4c8ab987e10c0808d92d76f3b84dd117/library/test/src/lib.rs:663:18 [INFO] [stderr] 33: 0x654daea88fe5 - test::run_test_in_process::{{closure}}::h4dc8bc6d5e3924d3 [INFO] [stderr] at /rustc/bb624dcb4c8ab987e10c0808d92d76f3b84dd117/library/test/src/lib.rs:686:74 [INFO] [stderr] 34: 0x654daea88fe5 - as core::ops::function::FnOnce<()>>::call_once::h75905e8ffe81974f [INFO] [stderr] at /rustc/bb624dcb4c8ab987e10c0808d92d76f3b84dd117/library/core/src/panic/unwind_safe.rs:274:9 [INFO] [stderr] 35: 0x654daea88fe5 - std::panicking::catch_unwind::do_call::h0bc60366ba66eba5 [INFO] [stderr] at /rustc/bb624dcb4c8ab987e10c0808d92d76f3b84dd117/library/std/src/panicking.rs:590:40 [INFO] [stderr] 36: 0x654daea88fe5 - std::panicking::catch_unwind::hae1ec7bf94407afa [INFO] [stderr] at /rustc/bb624dcb4c8ab987e10c0808d92d76f3b84dd117/library/std/src/panicking.rs:553:19 [INFO] [stderr] 37: 0x654daea88fe5 - std::panic::catch_unwind::h0f4ff4773d84d3cd [INFO] [stderr] at /rustc/bb624dcb4c8ab987e10c0808d92d76f3b84dd117/library/std/src/panic.rs:359:14 [INFO] [stderr] 38: 0x654daea88fe5 - test::run_test_in_process::h03fbc77ae48b3f10 [INFO] [stderr] at /rustc/bb624dcb4c8ab987e10c0808d92d76f3b84dd117/library/test/src/lib.rs:686:27 [INFO] [stderr] 39: 0x654daea88fe5 - test::run_test::{{closure}}::h83476a9c453dc4d3 [INFO] [stderr] at /rustc/bb624dcb4c8ab987e10c0808d92d76f3b84dd117/library/test/src/lib.rs:607:43 [INFO] [stderr] 40: 0x654daea5f7d4 - test::run_test::{{closure}}::h515482ad1e7fe7de [INFO] [stderr] at /rustc/bb624dcb4c8ab987e10c0808d92d76f3b84dd117/library/test/src/lib.rs:637:41 [INFO] [stderr] 41: 0x654daea5f7d4 - std::sys::backtrace::__rust_begin_short_backtrace::hed09f6ac5fe9d647 [INFO] [stderr] at /rustc/bb624dcb4c8ab987e10c0808d92d76f3b84dd117/library/std/src/sys/backtrace.rs:158:18 [INFO] [stderr] 42: 0x654daea6309a - std::thread::Builder::spawn_unchecked_::{{closure}}::{{closure}}::h988e2cd969319888 [INFO] [stderr] at /rustc/bb624dcb4c8ab987e10c0808d92d76f3b84dd117/library/std/src/thread/mod.rs:559:17 [INFO] [stderr] 43: 0x654daea6309a - as core::ops::function::FnOnce<()>>::call_once::hd70e28dc46ec20be [INFO] [stderr] at /rustc/bb624dcb4c8ab987e10c0808d92d76f3b84dd117/library/core/src/panic/unwind_safe.rs:274:9 [INFO] [stderr] 44: 0x654daea6309a - std::panicking::catch_unwind::do_call::hdc29e11311eb7655 [INFO] [stderr] at /rustc/bb624dcb4c8ab987e10c0808d92d76f3b84dd117/library/std/src/panicking.rs:590:40 [INFO] [stderr] 45: 0x654daea6309a - std::panicking::catch_unwind::h9e402d6a96fef41c [INFO] [stderr] at /rustc/bb624dcb4c8ab987e10c0808d92d76f3b84dd117/library/std/src/panicking.rs:553:19 [INFO] [stderr] 46: 0x654daea6309a - std::panic::catch_unwind::h9213c0c54aec70e0 [INFO] [stderr] at /rustc/bb624dcb4c8ab987e10c0808d92d76f3b84dd117/library/std/src/panic.rs:359:14 [INFO] [stderr] 47: 0x654daea6309a - std::thread::Builder::spawn_unchecked_::{{closure}}::h6262965869ed2b87 [INFO] [stderr] at /rustc/bb624dcb4c8ab987e10c0808d92d76f3b84dd117/library/std/src/thread/mod.rs:557:30 [INFO] [stderr] 48: 0x654daea6309a - core::ops::function::FnOnce::call_once{{vtable.shim}}::h05c05ed02619e462 [INFO] [stderr] at /rustc/bb624dcb4c8ab987e10c0808d92d76f3b84dd117/library/core/src/ops/function.rs:250:5 [INFO] [stderr] 49: 0x654daeaa92af - as core::ops::function::FnOnce>::call_once::h2044e71c41d3958a [INFO] [stderr] at /rustc/bb624dcb4c8ab987e10c0808d92d76f3b84dd117/library/alloc/src/boxed.rs:1985:9 [INFO] [stderr] 50: 0x654daeaa92af - std::sys::thread::unix::Thread::new::thread_start::hf277835320aa8e5a [INFO] [stderr] at /rustc/bb624dcb4c8ab987e10c0808d92d76f3b84dd117/library/std/src/sys/thread/unix.rs:126:17 [INFO] [stderr] 51: 0x7b9945cdaaa4 - [INFO] [stderr] 52: 0x7b9945d67a34 - clone [INFO] [stderr] 53: 0x0 - [INFO] [stderr] thread caused non-unwinding panic. aborting. [INFO] [stderr] error: test failed, to rerun pass `--lib` [INFO] [stderr] [INFO] [stderr] Caused by: [INFO] [stderr] process didn't exit successfully: `/opt/rustwide/target/debug/deps/ein_ffi-dd9b8c367af1a270` (signal: 6, SIGABRT: process abort signal) [INFO] running `Command { std: "docker" "inspect" "471bc41343d85646000b6d7265124becdb9cb6caf34cf58c866bc909210ea2d7", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "471bc41343d85646000b6d7265124becdb9cb6caf34cf58c866bc909210ea2d7", kill_on_drop: false }` [INFO] [stdout] 471bc41343d85646000b6d7265124becdb9cb6caf34cf58c866bc909210ea2d7