[INFO] fetching crate second-stack 0.3.5...
[INFO] testing second-stack-0.3.5 against 1.99.0-beta.8 for beta-1.100-2
[INFO] extracting crate second-stack 0.3.5 into /workspace/builds/worker-6-tc1/source
[INFO] started tweaking crates.io crate second-stack 0.3.5
[INFO] finished tweaking crates.io crate second-stack 0.3.5
[INFO] tweaked toml for crates.io crate second-stack 0.3.5 written to /workspace/builds/worker-6-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate second-stack 0.3.5 on toolchain 1.99.0-beta.8
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.99.0-beta.8" "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" "+1.99.0-beta.8" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 15 packages to highest compatible versions
[INFO] [stderr]       Adding rand v0.8.8 (available: v0.10.3)
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.99.0-beta.8" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded testdrop v0.1.2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/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@sha256:3111399a4047eeb3a02b7a90e478d715f38a8c6669b5c4b49d30a17385265909" "sleep" "infinity", kill_on_drop: false }`
[INFO] [stdout] 49f5730ca227765fe461eb8e5c27e7583210352839d4bf07d8e5bfcfe5b81432
[INFO] running `Command { std: "docker" "start" "49f5730ca227765fe461eb8e5c27e7583210352839d4bf07d8e5bfcfe5b81432", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "49f5730ca227765fe461eb8e5c27e7583210352839d4bf07d8e5bfcfe5b81432", 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" "49f5730ca227765fe461eb8e5c27e7583210352839d4bf07d8e5bfcfe5b81432" "/opt/rustwide/cargo-home/bin/cargo" "+1.99.0-beta.8" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "49f5730ca227765fe461eb8e5c27e7583210352839d4bf07d8e5bfcfe5b81432", 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" "49f5730ca227765fe461eb8e5c27e7583210352839d4bf07d8e5bfcfe5b81432" "/opt/rustwide/cargo-home/bin/cargo" "+1.99.0-beta.8" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr]    Compiling second-stack v0.3.5 (/opt/rustwide/workdir)
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/lib.rs:230:17
[INFO] [stdout]     |
[INFO] [stdout] 230 |             let mut current = &mut *self.location.get();
[INFO] [stdout]     |                 ----^^^^^^^
[INFO] [stdout]     |                 |
[INFO] [stdout]     |                 help: remove this `mut`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_mut)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.20s
[INFO] running `Command { std: "docker" "inspect" "49f5730ca227765fe461eb8e5c27e7583210352839d4bf07d8e5bfcfe5b81432", 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" "49f5730ca227765fe461eb8e5c27e7583210352839d4bf07d8e5bfcfe5b81432" "/opt/rustwide/cargo-home/bin/cargo" "+1.99.0-beta.8" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr]    Compiling testdrop v0.1.2
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/lib.rs:230:17
[INFO] [stdout]     |
[INFO] [stdout] 230 |             let mut current = &mut *self.location.get();
[INFO] [stdout]     |                 ----^^^^^^^
[INFO] [stdout]     |                 |
[INFO] [stdout]     |                 help: remove this `mut`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_mut)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling second-stack v0.3.5 (/opt/rustwide/workdir)
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/lib.rs:230:17
[INFO] [stdout]     |
[INFO] [stdout] 230 |             let mut current = &mut *self.location.get();
[INFO] [stdout]     |                 ----^^^^^^^
[INFO] [stdout]     |                 |
[INFO] [stdout]     |                 help: remove this `mut`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_mut)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 1.63s
[INFO] running `Command { std: "docker" "inspect" "49f5730ca227765fe461eb8e5c27e7583210352839d4bf07d8e5bfcfe5b81432", 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" "49f5730ca227765fe461eb8e5c27e7583210352839d4bf07d8e5bfcfe5b81432" "/opt/rustwide/cargo-home/bin/cargo" "+1.99.0-beta.8" "test" "--frozen", kill_on_drop: false }`
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/lib.rs:230:17
[INFO] [stderr]     |
[INFO] [stderr] 230 |             let mut current = &mut *self.location.get();
[INFO] [stderr]     |                 ----^^^^^^^
[INFO] [stderr]     |                 |
[INFO] [stderr]     |                 help: remove this `mut`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_mut)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: `second-stack` (lib) generated 1 warning (run `cargo fix --lib -p second-stack` to apply 1 suggestion)
[INFO] [stderr] warning: `second-stack` (lib test) generated 1 warning (1 duplicate)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.03s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/second_stack-2afe4d4698303c08)
[INFO] [stderr]      Running tests/integration.rs (/opt/rustwide/target/debug/deps/integration-326f56aa636785f7)
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stderr] 
[INFO] [stderr] thread '<unnamed>' (217) panicked at src/lib.rs:188:26:
[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] [tests/integration.rs:45:5] &cfg = Cfg {
[INFO] [stdout]     threads: 32,
[INFO] [stdout]     inner_loops: 3,
[INFO] [stdout]     outer_loops: 100,
[INFO] [stdout]     recursion: 8,
[INFO] [stdout] }
[INFO] [stdout] [tests/integration.rs:53:21] it = 0
[INFO] [stderr]    0:     0x5f601a375541 - std[70759c8f55707aa4]::backtrace_rs::backtrace::libunwind::trace
[INFO] [stderr]                                at /rustc/dfb0accb7f508ae8be965d8629557221c889dd98/library/std/src/../../backtrace/src/backtrace/libunwind.rs:117:9
[INFO] [stderr]    1:     0x5f601a375541 - std[70759c8f55707aa4]::backtrace_rs::backtrace::trace_unsynchronized::<std[70759c8f55707aa4]::sys::backtrace::_print_fmt::{closure#1}>
[INFO] [stderr]                                at /rustc/dfb0accb7f508ae8be965d8629557221c889dd98/library/std/src/../../backtrace/src/backtrace/mod.rs:66:14
[INFO] [stderr]    2:     0x5f601a375541 - std[70759c8f55707aa4]::sys::backtrace::_print_fmt
[INFO] [stderr]                                at /rustc/dfb0accb7f508ae8be965d8629557221c889dd98/library/std/src/sys/backtrace.rs:74:9
[INFO] [stderr]    3:     0x5f601a375541 - <<std[70759c8f55707aa4]::sys::backtrace::BacktraceLock>::print::DisplayBacktrace as core[df12db4294e9bfd3]::fmt::Display>::fmt
[INFO] [stderr]                                at /rustc/dfb0accb7f508ae8be965d8629557221c889dd98/library/std/src/sys/backtrace.rs:44:26
[INFO] [stderr]    4:     0x5f601a38a16a - <core[df12db4294e9bfd3]::fmt::rt::Argument>::fmt
[INFO] [stderr]                                at /rustc/dfb0accb7f508ae8be965d8629557221c889dd98/library/core/src/fmt/rt.rs:152:76
[INFO] [stderr]    5:     0x5f601a38a16a - core[df12db4294e9bfd3]::fmt::write
[INFO] [stderr]    6:     0x5f601a37a8ec - core[df12db4294e9bfd3]::io::write::default_write_fmt::<std[70759c8f55707aa4]::sys::stdio::unix::Stderr>
[INFO] [stderr]                                at /rustc/dfb0accb7f508ae8be965d8629557221c889dd98/library/core/src/io/write.rs:402:11
[INFO] [stderr]    7:     0x5f601a37a8ec - <std[70759c8f55707aa4]::sys::stdio::unix::Stderr as core[df12db4294e9bfd3]::io::write::Write>::write_fmt
[INFO] [stderr]                                at /rustc/dfb0accb7f508ae8be965d8629557221c889dd98/library/core/src/io/write.rs:335:13
[INFO] [stderr]    8:     0x5f601a351b36 - <std[70759c8f55707aa4]::sys::backtrace::BacktraceLock>::print
[INFO] [stderr]                                at /rustc/dfb0accb7f508ae8be965d8629557221c889dd98/library/std/src/sys/backtrace.rs:47:9
[INFO] [stderr]    9:     0x5f601a351b36 - std[70759c8f55707aa4]::panicking::default_hook::{closure#0}
[INFO] [stderr]                                at /rustc/dfb0accb7f508ae8be965d8629557221c889dd98/library/std/src/panicking.rs:292:27
[INFO] [stderr]   10:     0x5f601a36dc71 - std[70759c8f55707aa4]::panicking::default_hook
[INFO] [stderr]                                at /rustc/dfb0accb7f508ae8be965d8629557221c889dd98/library/std/src/panicking.rs:319:9
[INFO] [stderr]   11:     0x5f601a2d43a0 - <alloc[2182bb758b4b3781]::boxed::Box<dyn for<'a, 'b> core[df12db4294e9bfd3]::ops::function::Fn<(&'a std[70759c8f55707aa4]::panic::PanicHookInfo<'b>,), Output = ()> + core[df12db4294e9bfd3]::marker::Send + core[df12db4294e9bfd3]::marker::Sync> as core[df12db4294e9bfd3]::ops::function::Fn<(&std[70759c8f55707aa4]::panic::PanicHookInfo,)>>::call
[INFO] [stderr]                                at /rustc/dfb0accb7f508ae8be965d8629557221c889dd98/library/alloc/src/boxed.rs:2334:9
[INFO] [stderr]   12:     0x5f601a2d43a0 - test[9d35eded1c95d3be]::test_main_inner::<test[9d35eded1c95d3be]::test_main_static::{closure#0}>::{closure#0}
[INFO] [stderr]                                at /rustc/dfb0accb7f508ae8be965d8629557221c889dd98/library/test/src/lib.rs:155:21
[INFO] [stderr]   13:     0x5f601a36de62 - <alloc[2182bb758b4b3781]::boxed::Box<dyn for<'a, 'b> core[df12db4294e9bfd3]::ops::function::Fn<(&'a std[70759c8f55707aa4]::panic::PanicHookInfo<'b>,), Output = ()> + core[df12db4294e9bfd3]::marker::Send + core[df12db4294e9bfd3]::marker::Sync> as core[df12db4294e9bfd3]::ops::function::Fn<(&std[70759c8f55707aa4]::panic::PanicHookInfo,)>>::call
[INFO] [stderr]                                at /rustc/dfb0accb7f508ae8be965d8629557221c889dd98/library/alloc/src/boxed.rs:2334:9
[INFO] [stderr]   14:     0x5f601a36de62 - std[70759c8f55707aa4]::panicking::panic_with_hook
[INFO] [stderr]                                at /rustc/dfb0accb7f508ae8be965d8629557221c889dd98/library/std/src/panicking.rs:823:13
[INFO] [stderr]   15:     0x5f601a351c14 - std[70759c8f55707aa4]::panicking::panic_handler::{closure#0}
[INFO] [stderr]                                at /rustc/dfb0accb7f508ae8be965d8629557221c889dd98/library/std/src/panicking.rs:681:13
[INFO] [stderr]   16:     0x5f601a34a969 - std[70759c8f55707aa4]::sys::backtrace::__rust_end_short_backtrace::<std[70759c8f55707aa4]::panicking::panic_handler::{closure#0}, !>
[INFO] [stderr]                                at /rustc/dfb0accb7f508ae8be965d8629557221c889dd98/library/std/src/sys/backtrace.rs:182:18
[INFO] [stderr]   17:     0x5f601a3527dd - __rustc[8fa7c3cbc660c2b3]::rust_begin_unwind
[INFO] [stderr]                                at /rustc/dfb0accb7f508ae8be965d8629557221c889dd98/library/std/src/panicking.rs:679:5
[INFO] [stderr]   18:     0x5f601a38a78d - core[df12db4294e9bfd3]::panicking::panic_nounwind_fmt::runtime
[INFO] [stderr]                                at /rustc/dfb0accb7f508ae8be965d8629557221c889dd98/library/core/src/panicking.rs:122:22
[INFO] [stderr]   19:     0x5f601a38a78d - core[df12db4294e9bfd3]::panicking::panic_nounwind_fmt
[INFO] [stderr]                                at /rustc/dfb0accb7f508ae8be965d8629557221c889dd98/library/core/src/intrinsics/mod.rs:2636:9
[INFO] [stderr]   20:     0x5f601a2ac691 - core[df12db4294e9bfd3]::slice::raw::from_raw_parts_mut::precondition_check
[INFO] [stderr]                                at /rustc/dfb0accb7f508ae8be965d8629557221c889dd98/library/core/src/ub_checks.rs:73:21
[INFO] [stderr]   21:     0x5f601a2a8849 - core[df12db4294e9bfd3]::slice::raw::from_raw_parts_mut::<integration[a3df6adcdd6987cc]::DropCheck<(u16, u32)>>
[INFO] [stderr]                                at /rustc/dfb0accb7f508ae8be965d8629557221c889dd98/library/core/src/ub_checks.rs:78:17
[INFO] [stderr]   22:     0x5f601a293170 - <second_stack[ab6ea1a9b603cd66]::Stack>::buffer::<integration[a3df6adcdd6987cc]::DropCheck<(u16, u32)>, integration[a3df6adcdd6987cc]::check_iter<(u16, u32)>::{closure#0}, (), integration[a3df6adcdd6987cc]::RandIterator<(u16, u32)>>
[INFO] [stderr]                                at /opt/rustwide/workdir/src/lib.rs:188:26
[INFO] [stderr]   23:     0x5f601a29b34c - integration[a3df6adcdd6987cc]::check_iter::<(u16, u32)>
[INFO] [stderr]                                at /opt/rustwide/workdir/tests/integration.rs:249:15
[INFO] [stderr]   24:     0x5f601a29ede3 - integration[a3df6adcdd6987cc]::check_rand_method::<(u16, u32)>
[INFO] [stderr]                                at /opt/rustwide/workdir/tests/integration.rs:168:14
[INFO] [stderr]   25:     0x5f601a2a3854 - integration[a3df6adcdd6987cc]::check_rand_type
[INFO] [stderr]                                at /opt/rustwide/workdir/tests/integration.rs:186:14
[INFO] [stderr]   26:     0x5f601a2a343e - integration[a3df6adcdd6987cc]::recurse::{closure#0}
[INFO] [stderr]                                at /opt/rustwide/workdir/tests/integration.rs:207:13
[INFO] [stderr]   27:     0x5f601a2a3981 - integration[a3df6adcdd6987cc]::recurse
[INFO] [stderr]                                at /opt/rustwide/workdir/tests/integration.rs:215:9
[INFO] [stderr]   28:     0x5f601a2a22e5 - integration[a3df6adcdd6987cc]::check_slice::<(u16, u16)>::{closure#0}
[INFO] [stderr]                                at /opt/rustwide/workdir/tests/integration.rs:140:9
[INFO] [stderr]   29:     0x5f601a2c6ea1 - <integration[a3df6adcdd6987cc]::check_slice<(u16, u16)>::{closure#0} as core[df12db4294e9bfd3]::ops::function::FnOnce<(&mut [core[df12db4294e9bfd3]::mem::maybe_uninit::MaybeUninit<(u16, u16)>],)>>::call_once
[INFO] [stderr]                                at /rustc/dfb0accb7f508ae8be965d8629557221c889dd98/library/core/src/ops/function.rs:250:5
[INFO] [stderr]   30:     0x5f601a28ef83 - <second_stack[ab6ea1a9b603cd66]::Stack>::uninit_slice::<(u16, u16), integration[a3df6adcdd6987cc]::check_slice<(u16, u16)>::{closure#0}, ()>
[INFO] [stderr]                                at /opt/rustwide/workdir/src/lib.rs:86:9
[INFO] [stderr]   31:     0x5f601a295faf - second_stack[ab6ea1a9b603cd66]::uninit_slice::<(u16, u16), integration[a3df6adcdd6987cc]::check_slice<(u16, u16)>::{closure#0}, ()>::{closure#0}
[INFO] [stderr]                                at /opt/rustwide/workdir/src/lib.rs:199:37
[INFO] [stderr]   32:     0x5f601a2b6cb4 - <std[70759c8f55707aa4]::thread::local::LocalKey<second_stack[ab6ea1a9b603cd66]::Stack>>::try_with::<second_stack[ab6ea1a9b603cd66]::uninit_slice<(u16, u16), integration[a3df6adcdd6987cc]::check_slice<(u16, u16)>::{closure#0}, ()>::{closure#0}, ()>
[INFO] [stderr]                                at /rustc/dfb0accb7f508ae8be965d8629557221c889dd98/library/std/src/thread/local.rs:463:12
[INFO] [stderr]   33:     0x5f601a2b5bce - <std[70759c8f55707aa4]::thread::local::LocalKey<second_stack[ab6ea1a9b603cd66]::Stack>>::with::<second_stack[ab6ea1a9b603cd66]::uninit_slice<(u16, u16), integration[a3df6adcdd6987cc]::check_slice<(u16, u16)>::{closure#0}, ()>::{closure#0}, ()>
[INFO] [stderr]                                at /rustc/dfb0accb7f508ae8be965d8629557221c889dd98/library/std/src/thread/local.rs:427:20
[INFO] [stderr]   34:     0x5f601a28a52b - second_stack[ab6ea1a9b603cd66]::uninit_slice::<(u16, u16), integration[a3df6adcdd6987cc]::check_slice<(u16, u16)>::{closure#0}, ()>
[INFO] [stderr]                                at /opt/rustwide/workdir/src/lib.rs:199:18
[INFO] [stderr]   35:     0x5f601a29d4fd - integration[a3df6adcdd6987cc]::check_slice::<(u16, u16)>
[INFO] [stderr]                                at /opt/rustwide/workdir/tests/integration.rs:150:9
[INFO] [stderr]   36:     0x5f601a29eec3 - integration[a3df6adcdd6987cc]::check_rand_method::<(u16, u16)>
[INFO] [stderr]                                at /opt/rustwide/workdir/tests/integration.rs:167:14
[INFO] [stderr]   37:     0x5f601a2a3844 - integration[a3df6adcdd6987cc]::check_rand_type
[INFO] [stderr]                                at /opt/rustwide/workdir/tests/integration.rs:185:14
[INFO] [stderr]   38:     0x5f601a2a343e - integration[a3df6adcdd6987cc]::recurse::{closure#0}
[INFO] [stderr]                                at /opt/rustwide/workdir/tests/integration.rs:207:13
[INFO] [stderr]   39:     0x5f601a2a3981 - integration[a3df6adcdd6987cc]::recurse
[INFO] [stderr]                                at /opt/rustwide/workdir/tests/integration.rs:215:9
[INFO] [stderr]   40:     0x5f601a2a4698 - <integration[a3df6adcdd6987cc]::DropCheck<u8> as core[df12db4294e9bfd3]::ops::drop::Drop>::drop
[INFO] [stderr]                                at /opt/rustwide/workdir/tests/integration.rs:266:13
[INFO] [stderr]   41:     0x5f601a2bfdb3 - core[df12db4294e9bfd3]::ptr::drop_glue::<integration[a3df6adcdd6987cc]::DropCheck<u8>>
[INFO] [stderr]                                at /rustc/dfb0accb7f508ae8be965d8629557221c889dd98/library/core/src/ptr/mod.rs:847:1
[INFO] [stderr]   42:     0x5f601a299492 - core[df12db4294e9bfd3]::ptr::drop_in_place::<integration[a3df6adcdd6987cc]::DropCheck<u8>>
[INFO] [stderr]                                at /rustc/dfb0accb7f508ae8be965d8629557221c889dd98/library/core/src/ptr/mod.rs:842:14
[INFO] [stderr]   43:     0x5f601a299492 - <*mut integration[a3df6adcdd6987cc]::DropCheck<u8>>::drop_in_place
[INFO] [stderr]                                at /rustc/dfb0accb7f508ae8be965d8629557221c889dd98/library/core/src/ptr/mut_ptr.rs:1384:18
[INFO] [stderr]   44:     0x5f601a299492 - <<second_stack[ab6ea1a9b603cd66]::Stack>::buffer::Writer<integration[a3df6adcdd6987cc]::DropCheck<u8>> as core[df12db4294e9bfd3]::ops::drop::Drop>::drop
[INFO] [stderr]                                at /opt/rustwide/workdir/src/lib.rs:141:42
[INFO] [stderr]   45:     0x5f601a2c1553 - core[df12db4294e9bfd3]::ptr::drop_glue::<<second_stack[ab6ea1a9b603cd66]::Stack>::buffer::Writer<integration[a3df6adcdd6987cc]::DropCheck<u8>>>
[INFO] [stderr]                                at /rustc/dfb0accb7f508ae8be965d8629557221c889dd98/library/core/src/ptr/mod.rs:847:1
[INFO] [stderr]   46:     0x5f601a294042 - <second_stack[ab6ea1a9b603cd66]::Stack>::buffer::<integration[a3df6adcdd6987cc]::DropCheck<u8>, integration[a3df6adcdd6987cc]::check_iter<u8>::{closure#0}, (), integration[a3df6adcdd6987cc]::RandIterator<u8>>
[INFO] [stderr]                                at /opt/rustwide/workdir/src/lib.rs:190:9
[INFO] [stderr]   47:     0x5f601a296551 - second_stack[ab6ea1a9b603cd66]::buffer::<integration[a3df6adcdd6987cc]::DropCheck<u8>, integration[a3df6adcdd6987cc]::check_iter<u8>::{closure#0}, (), integration[a3df6adcdd6987cc]::RandIterator<u8>>::{closure#0}
[INFO] [stderr]                                at /opt/rustwide/workdir/src/lib.rs:217:37
[INFO] [stderr]   48:     0x5f601a2b79d8 - <std[70759c8f55707aa4]::thread::local::LocalKey<second_stack[ab6ea1a9b603cd66]::Stack>>::try_with::<second_stack[ab6ea1a9b603cd66]::buffer<integration[a3df6adcdd6987cc]::DropCheck<u8>, integration[a3df6adcdd6987cc]::check_iter<u8>::{closure#0}, (), integration[a3df6adcdd6987cc]::RandIterator<u8>>::{closure#0}, ()>
[INFO] [stderr]                                at /rustc/dfb0accb7f508ae8be965d8629557221c889dd98/library/std/src/thread/local.rs:463:12
[INFO] [stderr]   49:     0x5f601a2b5f4e - <std[70759c8f55707aa4]::thread::local::LocalKey<second_stack[ab6ea1a9b603cd66]::Stack>>::with::<second_stack[ab6ea1a9b603cd66]::buffer<integration[a3df6adcdd6987cc]::DropCheck<u8>, integration[a3df6adcdd6987cc]::check_iter<u8>::{closure#0}, (), integration[a3df6adcdd6987cc]::RandIterator<u8>>::{closure#0}, ()>
[INFO] [stderr]                                at /rustc/dfb0accb7f508ae8be965d8629557221c889dd98/library/std/src/thread/local.rs:427:20
[INFO] [stderr]   50:     0x5f601a28a9dd - second_stack[ab6ea1a9b603cd66]::buffer::<integration[a3df6adcdd6987cc]::DropCheck<u8>, integration[a3df6adcdd6987cc]::check_iter<u8>::{closure#0}, (), integration[a3df6adcdd6987cc]::RandIterator<u8>>
[INFO] [stderr]                                at /opt/rustwide/workdir/src/lib.rs:217:18
[INFO] [stderr]   51:     0x5f601a29bb53 - integration[a3df6adcdd6987cc]::check_iter::<u8>
[INFO] [stderr]                                at /opt/rustwide/workdir/tests/integration.rs:247:9
[INFO] [stderr]   52:     0x5f601a29efc3 - integration[a3df6adcdd6987cc]::check_rand_method::<u8>
[INFO] [stderr]                                at /opt/rustwide/workdir/tests/integration.rs:168:14
[INFO] [stderr]   53:     0x5f601a2a37c8 - integration[a3df6adcdd6987cc]::check_rand_type
[INFO] [stderr]                                at /opt/rustwide/workdir/tests/integration.rs:178:14
[INFO] [stderr]   54:     0x5f601a2a343e - integration[a3df6adcdd6987cc]::recurse::{closure#0}
[INFO] [stderr]                                at /opt/rustwide/workdir/tests/integration.rs:207:13
[INFO] [stderr]   55:     0x5f601a2a3981 - integration[a3df6adcdd6987cc]::recurse
[INFO] [stderr]                                at /opt/rustwide/workdir/tests/integration.rs:215:9
[INFO] [stderr]   56:     0x5f601a2a32fa - integration[a3df6adcdd6987cc]::soak::{closure#0}::{closure#0}
[INFO] [stderr]                                at /opt/rustwide/workdir/tests/integration.rs:58:25
[INFO] [stderr]   57:     0x5f601a2a7fc2 - std[70759c8f55707aa4]::sys::backtrace::__rust_begin_short_backtrace::<integration[a3df6adcdd6987cc]::soak::{closure#0}::{closure#0}, ()>
[INFO] [stderr]                                at /rustc/dfb0accb7f508ae8be965d8629557221c889dd98/library/std/src/sys/backtrace.rs:166:18
[INFO] [stderr]   58:     0x5f601a2c45c1 - std[70759c8f55707aa4]::thread::lifecycle::spawn_unchecked::<integration[a3df6adcdd6987cc]::soak::{closure#0}::{closure#0}, ()>::{closure#1}::{closure#0}
[INFO] [stderr]                                at /rustc/dfb0accb7f508ae8be965d8629557221c889dd98/library/std/src/thread/lifecycle.rs:70:13
[INFO] [stderr]   59:     0x5f601a2aeed0 - <core[df12db4294e9bfd3]::panic::unwind_safe::AssertUnwindSafe<std[70759c8f55707aa4]::thread::lifecycle::spawn_unchecked<integration[a3df6adcdd6987cc]::soak::{closure#0}::{closure#0}, ()>::{closure#1}::{closure#0}> as core[df12db4294e9bfd3]::ops::function::FnOnce<()>>::call_once
[INFO] [stderr]                                at /rustc/dfb0accb7f508ae8be965d8629557221c889dd98/library/core/src/panic/unwind_safe.rs:275:9
[INFO] [stderr]   60:     0x5f601a2a9405 - std[70759c8f55707aa4]::panicking::catch_unwind::do_call::<core[df12db4294e9bfd3]::panic::unwind_safe::AssertUnwindSafe<std[70759c8f55707aa4]::thread::lifecycle::spawn_unchecked<integration[a3df6adcdd6987cc]::soak::{closure#0}::{closure#0}, ()>::{closure#1}::{closure#0}>, ()>
[INFO] [stderr]                                at /rustc/dfb0accb7f508ae8be965d8629557221c889dd98/library/std/src/panicking.rs:576:43
[INFO] [stderr]   61:     0x5f601a2c763b - __rust_try
[INFO] [stderr]   62:     0x5f601a2c3ec3 - std[70759c8f55707aa4]::panicking::catch_unwind::<(), core[df12db4294e9bfd3]::panic::unwind_safe::AssertUnwindSafe<std[70759c8f55707aa4]::thread::lifecycle::spawn_unchecked<integration[a3df6adcdd6987cc]::soak::{closure#0}::{closure#0}, ()>::{closure#1}::{closure#0}>>
[INFO] [stderr]                                at /rustc/dfb0accb7f508ae8be965d8629557221c889dd98/library/std/src/panicking.rs:544:19
[INFO] [stderr]   63:     0x5f601a2c3ec3 - std[70759c8f55707aa4]::panic::catch_unwind::<core[df12db4294e9bfd3]::panic::unwind_safe::AssertUnwindSafe<std[70759c8f55707aa4]::thread::lifecycle::spawn_unchecked<integration[a3df6adcdd6987cc]::soak::{closure#0}::{closure#0}, ()>::{closure#1}::{closure#0}>, ()>
[INFO] [stderr]                                at /rustc/dfb0accb7f508ae8be965d8629557221c889dd98/library/std/src/panic.rs:359:14
[INFO] [stderr]   64:     0x5f601a2c3ec3 - std[70759c8f55707aa4]::thread::lifecycle::spawn_unchecked::<integration[a3df6adcdd6987cc]::soak::{closure#0}::{closure#0}, ()>::{closure#1}
[INFO] [stderr]                                at /rustc/dfb0accb7f508ae8be965d8629557221c889dd98/library/std/src/thread/lifecycle.rs:68:26
[INFO] [stderr]   65:     0x5f601a2c48ee - <std[70759c8f55707aa4]::thread::lifecycle::spawn_unchecked<integration[a3df6adcdd6987cc]::soak::{closure#0}::{closure#0}, ()>::{closure#1} as core[df12db4294e9bfd3]::ops::function::FnOnce<()>>::call_once::{shim:vtable#0}
[INFO] [stderr]                                at /rustc/dfb0accb7f508ae8be965d8629557221c889dd98/library/core/src/ops/function.rs:250:5
[INFO] [stderr]   66:     0x5f601a374e19 - <alloc[2182bb758b4b3781]::boxed::Box<dyn core[df12db4294e9bfd3]::ops::function::FnOnce<(), Output = ()> + core[df12db4294e9bfd3]::marker::Send> as core[df12db4294e9bfd3]::ops::function::FnOnce<()>>::call_once
[INFO] [stderr]                                at /rustc/dfb0accb7f508ae8be965d8629557221c889dd98/library/alloc/src/boxed.rs:2320:9
[INFO] [stderr]   67:     0x5f601a374e19 - <std[70759c8f55707aa4]::sys::thread::unix::Thread>::new::thread_start
[INFO] [stderr]                                at /rustc/dfb0accb7f508ae8be965d8629557221c889dd98/library/std/src/sys/thread/unix.rs:123:17
[INFO] [stderr]   68:     0x7e70f75badfa - <unknown>
[INFO] [stderr]   69:     0x7e70f764e3d4 - clone
[INFO] [stderr]   70:                0x0 - <unknown>
[INFO] [stderr] thread caused non-unwinding panic. aborting.
[INFO] [stderr] error: test failed, to rerun pass `--test integration`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `/opt/rustwide/target/debug/deps/integration-326f56aa636785f7` (signal: 6, SIGABRT: process abort signal)
[INFO] running `Command { std: "docker" "inspect" "49f5730ca227765fe461eb8e5c27e7583210352839d4bf07d8e5bfcfe5b81432", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "49f5730ca227765fe461eb8e5c27e7583210352839d4bf07d8e5bfcfe5b81432", kill_on_drop: false }`
[INFO] [stdout] 49f5730ca227765fe461eb8e5c27e7583210352839d4bf07d8e5bfcfe5b81432
