[INFO] fetching crate ffi_wrapper_nounwind 0.1.1...
[INFO] testing ffi_wrapper_nounwind-0.1.1 against 1.100.0-beta.1+cargoflags=--release for beta-release-1.100-2
[INFO] extracting crate ffi_wrapper_nounwind 0.1.1 into /workspace/builds/worker-4-tc2/source
[INFO] started tweaking crates.io crate ffi_wrapper_nounwind 0.1.1
[INFO] finished tweaking crates.io crate ffi_wrapper_nounwind 0.1.1
[INFO] tweaked toml for crates.io crate ffi_wrapper_nounwind 0.1.1 written to /workspace/builds/worker-4-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate ffi_wrapper_nounwind 0.1.1 on toolchain 1.100.0-beta.1
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.100.0-beta.1" "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" "+1.100.0-beta.1" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 4 packages to highest compatible versions
[INFO] [stderr]       Adding syn v1.0.109 (available: v3.0.9)
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.100.0-beta.1" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,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" "-m" "1610612736" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:77db811e55d90add9212f6832c23229e3de5f1c1f9905e8cb07319ea15df73ac" "sleep" "infinity", kill_on_drop: false }`
[INFO] [stdout] 084ff47bf41cbee37bb817c6081cbd3bcb1e714916911ba9790f22fdea7ac678
[INFO] running `Command { std: "docker" "start" "084ff47bf41cbee37bb817c6081cbd3bcb1e714916911ba9790f22fdea7ac678", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "084ff47bf41cbee37bb817c6081cbd3bcb1e714916911ba9790f22fdea7ac678", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-w" "/opt/rustwide/workdir" "--user" "0:0" "084ff47bf41cbee37bb817c6081cbd3bcb1e714916911ba9790f22fdea7ac678" "/opt/rustwide/cargo-home/bin/cargo" "+1.100.0-beta.1" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "084ff47bf41cbee37bb817c6081cbd3bcb1e714916911ba9790f22fdea7ac678", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-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" "-w" "/opt/rustwide/workdir" "--user" "0:0" "084ff47bf41cbee37bb817c6081cbd3bcb1e714916911ba9790f22fdea7ac678" "/opt/rustwide/cargo-home/bin/cargo" "+1.100.0-beta.1" "build" "--frozen" "--message-format=json" "--release", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.107
[INFO] [stderr]    Compiling unicode-ident v1.0.27
[INFO] [stderr]    Compiling quote v1.0.47
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]    Compiling ffi_wrapper_nounwind v0.1.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `release` profile [optimized] target(s) in 15.96s
[INFO] running `Command { std: "docker" "inspect" "084ff47bf41cbee37bb817c6081cbd3bcb1e714916911ba9790f22fdea7ac678", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-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" "-w" "/opt/rustwide/workdir" "--user" "0:0" "084ff47bf41cbee37bb817c6081cbd3bcb1e714916911ba9790f22fdea7ac678" "/opt/rustwide/cargo-home/bin/cargo" "+1.100.0-beta.1" "test" "--frozen" "--no-run" "--message-format=json" "--release", kill_on_drop: false }`
[INFO] [stderr]    Compiling ffi_wrapper_nounwind v0.1.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `release` profile [optimized] target(s) in 2.56s
[INFO] running `Command { std: "docker" "inspect" "084ff47bf41cbee37bb817c6081cbd3bcb1e714916911ba9790f22fdea7ac678", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-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" "-w" "/opt/rustwide/workdir" "--user" "0:0" "084ff47bf41cbee37bb817c6081cbd3bcb1e714916911ba9790f22fdea7ac678" "/opt/rustwide/cargo-home/bin/cargo" "+1.100.0-beta.1" "test" "--frozen" "--release", kill_on_drop: false }`
[INFO] [stderr]     Finished `release` profile [optimized] target(s) in 0.01s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/release/build/ffi_wrapper_nounwind/a7c3d79b87b421a4/out/ffi_wrapper_nounwind-a7c3d79b87b421a4)
[INFO] [stdout] 
[INFO] [stdout] running 3 tests
[INFO] [stdout] test tests::cxx_wrapper_test ... ok
[INFO] [stdout] test tests::c_types_test ... ok
[INFO] [stdout] test tests::rust_wrapper_test ... FAILED
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout] 
[INFO] [stdout] ---- tests::rust_wrapper_test stdout ----
[INFO] [stderr] error: test failed, to rerun pass `--lib`
[INFO] [stdout] 
[INFO] [stdout] thread 'tests::rust_wrapper_test' (257) panicked at src/lib.rs:463:9:
[INFO] [stdout] assertion `left == right` failed
[INFO] [stdout]   left: "pub unsafe fn foo < 'a > (x : & 'a u8 , y : * mut u8) -> u32 { extern \"C\" { fn foo_cxx < 'a > (x : & 'a u8 , y : * mut u8) -> WrapperResult < u32 > ; } let result = foo_cxx (x , y) ; if result . discriminant == 0 { result . value . value } else { let WrapperError { buf , len , cap } : WrapperError = result . value . error ; panic ! (String :: from_raw_parts (buf , len , cap)) } }"
[INFO] [stdout]  right: "pub unsafe fn foo < 'a > ( x : & 'a u8 , y : * mut u8 ) -> -> u32 { extern \"C\" { fn foo_cxx < 'a > ( x : & 'a u8 , y : * mut u8 ) -> -> u32 ; } let result = foo_cxx ( x , y ) ; if result . discriminant == 0 { result . value . value } else { let WrapperError { { buf , len , cap } } : WrapperError = result . value . error ; panic ! ( String :: from_raw_parts ( buf , len , cap ) ) } }"
[INFO] [stdout] stack backtrace:
[INFO] [stdout]    0:     0x5d1420fdad21 - <<std[617be2ca0a6fd877]::sys::backtrace::BacktraceLock>::print::DisplayBacktrace as core[a373ad73a504971]::fmt::Display>::fmt
[INFO] [stdout]    1:     0x5d1420fef20a - core[a373ad73a504971]::fmt::write
[INFO] [stdout]    2:     0x5d1420fdf03c - <alloc[2e1b2a31b91974c5]::vec::Vec<u8> as core[a373ad73a504971]::io::write::Write>::write_fmt
[INFO] [stdout]    3:     0x5d1420fb6f36 - std[617be2ca0a6fd877]::panicking::default_hook::{closure#0}
[INFO] [stdout]    4:     0x5d1420fd31f9 - std[617be2ca0a6fd877]::panicking::default_hook
[INFO] [stdout]    5:     0x5d1420f5bf80 - test[aada8e7e76ba119b]::test_main_inner::{closure#0}
[INFO] [stdout]    6:     0x5d1420fd3522 - std[617be2ca0a6fd877]::panicking::panic_with_hook
[INFO] [stdout]    7:     0x5d1420fb6fe2 - std[617be2ca0a6fd877]::panicking::panic_handler::{closure#0}
[INFO] [stdout]    8:     0x5d1420fafcc9 - std[617be2ca0a6fd877]::sys::backtrace::__rust_end_short_backtrace::<std[617be2ca0a6fd877]::panicking::panic_handler::{closure#0}, !>
[INFO] [stdout]    9:     0x5d1420fb7bed - __rustc[ea4f61d10b84890b]::rust_begin_unwind
[INFO] [stdout]   10:     0x5d1420fef96c - core[a373ad73a504971]::panicking::panic_fmt
[INFO] [stdout]   11:     0x5d1420fef883 - core[a373ad73a504971]::panicking::assert_failed_inner
[INFO] [stdout]   12:     0x5d1420e7426f - core[a373ad73a504971]::panicking::assert_failed::<alloc[2e1b2a31b91974c5]::string::String, &str>
[INFO] [stdout]   13:     0x5d1420e739f1 - <ffi_wrapper_nounwind[cb4c62d597669fe2]::tests::rust_wrapper_test::{closure#0} as core[a373ad73a504971]::ops::function::FnOnce<()>>::call_once
[INFO] [stdout]   14:     0x5d1420f4f3cb - test[aada8e7e76ba119b]::__rust_begin_short_backtrace::<core[a373ad73a504971]::result::Result<(), alloc[2e1b2a31b91974c5]::string::String>, fn() -> core[a373ad73a504971]::result::Result<(), alloc[2e1b2a31b91974c5]::string::String>>
[INFO] [stdout]   15:     0x5d1420f5c5a5 - test[aada8e7e76ba119b]::run_test::{closure#0}
[INFO] [stdout]   16:     0x5d1420f55e94 - std[617be2ca0a6fd877]::sys::backtrace::__rust_begin_short_backtrace::<test[aada8e7e76ba119b]::run_test::{closure#1}, ()>
[INFO] [stdout]   17:     0x5d1420f5f632 - <std[617be2ca0a6fd877]::thread::lifecycle::spawn_unchecked<test[aada8e7e76ba119b]::run_test::{closure#1}, ()>::{closure#1} as core[a373ad73a504971]::ops::function::FnOnce<()>>::call_once::{shim:vtable#0}
[INFO] [stdout]   18:     0x5d1420fda56f - <std[617be2ca0a6fd877]::sys::thread::unix::Thread>::new::thread_start
[INFO] [stdout]   19:     0x7ace0f1bbdfa - <unknown>
[INFO] [stdout]   20:     0x7ace0f24f3d4 - clone
[INFO] [stdout]   21:                0x0 - <unknown>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout]     tests::rust_wrapper_test
[INFO] [stdout] 
[INFO] [stdout] test result: FAILED. 2 passed; 1 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "084ff47bf41cbee37bb817c6081cbd3bcb1e714916911ba9790f22fdea7ac678", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "084ff47bf41cbee37bb817c6081cbd3bcb1e714916911ba9790f22fdea7ac678", kill_on_drop: false }`
[INFO] [stdout] 084ff47bf41cbee37bb817c6081cbd3bcb1e714916911ba9790f22fdea7ac678
