[INFO] fetching crate rate-guard-core 0.7.2...
[INFO] testing rate-guard-core-0.7.2 against master#7704328ba5ae8d6ce0ac303c9d5a1a1605906766 for pr-146989
[INFO] extracting crate rate-guard-core 0.7.2 into /workspace/builds/worker-0-tc1/source
[INFO] started tweaking crates.io crate rate-guard-core 0.7.2
[INFO] removed 0 missing tests
[INFO] finished tweaking crates.io crate rate-guard-core 0.7.2
[INFO] tweaked toml for crates.io crate rate-guard-core 0.7.2 written to /workspace/builds/worker-0-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate rate-guard-core 0.7.2 on toolchain 7704328ba5ae8d6ce0ac303c9d5a1a1605906766
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+7704328ba5ae8d6ce0ac303c9d5a1a1605906766" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate rate-guard-core 0.7.2 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" "+7704328ba5ae8d6ce0ac303c9d5a1a1605906766" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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@sha256:98afbf2d16093dec2546ff8915fddc74e65664aa03fc460b3712b1c2c54a33e4" "/opt/rustwide/cargo-home/bin/cargo" "+7704328ba5ae8d6ce0ac303c9d5a1a1605906766" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 88a537c1506e011135990b2e76b394dcd1a0d67a89d23449aad4ff218eb3c929
[INFO] running `Command { std: "docker" "start" "-a" "88a537c1506e011135990b2e76b394dcd1a0d67a89d23449aad4ff218eb3c929", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "88a537c1506e011135990b2e76b394dcd1a0d67a89d23449aad4ff218eb3c929", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "88a537c1506e011135990b2e76b394dcd1a0d67a89d23449aad4ff218eb3c929", kill_on_drop: false }`
[INFO] [stdout] 88a537c1506e011135990b2e76b394dcd1a0d67a89d23449aad4ff218eb3c929
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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@sha256:98afbf2d16093dec2546ff8915fddc74e65664aa03fc460b3712b1c2c54a33e4" "/opt/rustwide/cargo-home/bin/cargo" "+7704328ba5ae8d6ce0ac303c9d5a1a1605906766" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 98ed0610f9aa09b212b617926d5975c3b0cad0561dd5a5dbd1ecbc69f66c302e
[INFO] running `Command { std: "docker" "start" "-a" "98ed0610f9aa09b212b617926d5975c3b0cad0561dd5a5dbd1ecbc69f66c302e", kill_on_drop: false }`
[INFO] [stderr]    Compiling rate-guard-core v0.7.2 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.35s
[INFO] running `Command { std: "docker" "inspect" "98ed0610f9aa09b212b617926d5975c3b0cad0561dd5a5dbd1ecbc69f66c302e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "98ed0610f9aa09b212b617926d5975c3b0cad0561dd5a5dbd1ecbc69f66c302e", kill_on_drop: false }`
[INFO] [stdout] 98ed0610f9aa09b212b617926d5975c3b0cad0561dd5a5dbd1ecbc69f66c302e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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@sha256:98afbf2d16093dec2546ff8915fddc74e65664aa03fc460b3712b1c2c54a33e4" "/opt/rustwide/cargo-home/bin/cargo" "+7704328ba5ae8d6ce0ac303c9d5a1a1605906766" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] b2209c9aaa7f8332621a9fa80947dcbbaa46621bde9f4cc5f573d545e161be50
[INFO] running `Command { std: "docker" "start" "-a" "b2209c9aaa7f8332621a9fa80947dcbbaa46621bde9f4cc5f573d545e161be50", kill_on_drop: false }`
[INFO] [stderr]    Compiling rate-guard-core v0.7.2 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 3.81s
[INFO] running `Command { std: "docker" "inspect" "b2209c9aaa7f8332621a9fa80947dcbbaa46621bde9f4cc5f573d545e161be50", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b2209c9aaa7f8332621a9fa80947dcbbaa46621bde9f4cc5f573d545e161be50", kill_on_drop: false }`
[INFO] [stdout] b2209c9aaa7f8332621a9fa80947dcbbaa46621bde9f4cc5f573d545e161be50
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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@sha256:98afbf2d16093dec2546ff8915fddc74e65664aa03fc460b3712b1c2c54a33e4" "/opt/rustwide/cargo-home/bin/cargo" "+7704328ba5ae8d6ce0ac303c9d5a1a1605906766" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] a84c722d512ff4aa96e48ee9155940a6cf98eae086e1bca37ec39089a446f966
[INFO] running `Command { std: "docker" "start" "-a" "a84c722d512ff4aa96e48ee9155940a6cf98eae086e1bca37ec39089a446f966", kill_on_drop: false }`
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/rate_guard_core-48216d156651bee5)
[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] [stderr]      Running tests/approximate_sliding_window_core.rs (/opt/rustwide/target/debug/deps/approximate_sliding_window_core-119cf5c21f11ea00)
[INFO] [stdout] 
[INFO] [stdout] running 15 tests
[INFO] [stdout] test test_large_time_gap ... ok
[INFO] [stdout] test test_macro_safety ... ok
[INFO] [stdout] test test_approximation_accuracy ... ok
[INFO] [stdout] test test_new_approximate_sliding_window ... ok
[INFO] [stdout] test test_acquire_zero_tokens ... ok
[INFO] [stdout] test test_window_boundary_precise ... ok
[INFO] [stdout] test test_window_expiration ... ok
[INFO] [stdout] test test_window_switching ... ok
[INFO] [stdout] test test_same_window_operations ... ok
[INFO] [stdout] test test_sliding_window_overlap ... ok
[INFO] [stdout] test test_saturating_operations ... ok
[INFO] [stdout] test test_expired_tick ... ok
[INFO] [stdout] test test_basic_acquire ... ok
[INFO] [stdout] test test_new_with_zero_window_ticks - should panic ... ok
[INFO] [stdout] test test_new_with_zero_capacity - should panic ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 15 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.04s
[INFO] [stdout] 
[INFO] [stderr]      Running tests/approximate_sliding_window_core2.rs (/opt/rustwide/target/debug/deps/approximate_sliding_window_core2-3c2501a8c66da4a6)
[INFO] [stdout] 
[INFO] [stdout] running 11 tests
[INFO] [stdout] test test_edge_case_overlap_calculation ... ok
[INFO] [stdout] test test_full_overlap_scenario ... ok
[INFO] [stdout] test test_no_overlap_scenario ... ok
[INFO] [stdout] test test_partial_overlap_precision ... ok
[INFO] [stdout] test test_same_tick_multiple_calls ... ok
[INFO] [stdout] test test_single_tick_window ... ok
[INFO] [stdout] test test_window_starts_alignment ... ok
[INFO] [stdout] test test_window_switching_consistency ... ok
[INFO] [stdout] test test_weighted_contribution_calculation ... ok
[INFO] [stdout] test test_large_window_size ... ok
[INFO] [stdout] test test_contention_failure ... FAILED
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout] 
[INFO] [stdout] ---- test_contention_failure stdout ----
[INFO] [stdout] 
[INFO] [stdout] thread 'test_contention_failure' (33) panicked at tests/approximate_sliding_window_core2.rs:38:5:
[INFO] [stdout] Should observe some contention failures
[INFO] [stdout] stack backtrace:
[INFO] [stdout]    0:     0x63070f326272 - std[ed5b486fa4cdb954]::backtrace_rs::backtrace::libunwind::trace
[INFO] [stdout]                                at /rustc/7704328ba5ae8d6ce0ac303c9d5a1a1605906766/library/std/src/../../backtrace/src/backtrace/libunwind.rs:117:9
[INFO] [stdout]    1:     0x63070f326272 - std[ed5b486fa4cdb954]::backtrace_rs::backtrace::trace_unsynchronized::<std[ed5b486fa4cdb954]::sys::backtrace::_print_fmt::{closure#1}>
[INFO] [stdout]                                at /rustc/7704328ba5ae8d6ce0ac303c9d5a1a1605906766/library/std/src/../../backtrace/src/backtrace/mod.rs:66:14
[INFO] [stdout]    2:     0x63070f326272 - std[ed5b486fa4cdb954]::sys::backtrace::_print_fmt
[INFO] [stdout]                                at /rustc/7704328ba5ae8d6ce0ac303c9d5a1a1605906766/library/std/src/sys/backtrace.rs:74:9
[INFO] [stdout]    3:     0x63070f326272 - <<std[ed5b486fa4cdb954]::sys::backtrace::BacktraceLock>::print::DisplayBacktrace as core[ab67b43d93431064]::fmt::Display>::fmt
[INFO] [stdout]                                at /rustc/7704328ba5ae8d6ce0ac303c9d5a1a1605906766/library/std/src/sys/backtrace.rs:44:26
[INFO] [stdout]    4:     0x63070f33aaba - <core[ab67b43d93431064]::fmt::rt::Argument>::fmt
[INFO] [stdout]                                at /rustc/7704328ba5ae8d6ce0ac303c9d5a1a1605906766/library/core/src/fmt/rt.rs:152:76
[INFO] [stdout]    5:     0x63070f33aaba - core[ab67b43d93431064]::fmt::write
[INFO] [stdout]    6:     0x63070f32b0a6 - std[ed5b486fa4cdb954]::io::default_write_fmt::<alloc[8787631d7fe8ec5a]::vec::Vec<u8>>
[INFO] [stdout]                                at /rustc/7704328ba5ae8d6ce0ac303c9d5a1a1605906766/library/std/src/io/mod.rs:639:11
[INFO] [stdout]    7:     0x63070f32b0a6 - <alloc[8787631d7fe8ec5a]::vec::Vec<u8> as std[ed5b486fa4cdb954]::io::Write>::write_fmt
[INFO] [stdout]                                at /rustc/7704328ba5ae8d6ce0ac303c9d5a1a1605906766/library/std/src/io/mod.rs:1994:13
[INFO] [stdout]    8:     0x63070f30466f - <std[ed5b486fa4cdb954]::sys::backtrace::BacktraceLock>::print
[INFO] [stdout]                                at /rustc/7704328ba5ae8d6ce0ac303c9d5a1a1605906766/library/std/src/sys/backtrace.rs:47:9
[INFO] [stdout]    9:     0x63070f30466f - std[ed5b486fa4cdb954]::panicking::default_hook::{closure#0}
[INFO] [stdout]                                at /rustc/7704328ba5ae8d6ce0ac303c9d5a1a1605906766/library/std/src/panicking.rs:292:27
[INFO] [stdout]   10:     0x63070f31e4d9 - std[ed5b486fa4cdb954]::panicking::default_hook
[INFO] [stdout]                                at /rustc/7704328ba5ae8d6ce0ac303c9d5a1a1605906766/library/std/src/panicking.rs:316:9
[INFO] [stdout]   11:     0x63070f2b92ce - <alloc[8787631d7fe8ec5a]::boxed::Box<dyn for<'a, 'b> core[ab67b43d93431064]::ops::function::Fn<(&'a std[ed5b486fa4cdb954]::panic::PanicHookInfo<'b>,), Output = ()> + core[ab67b43d93431064]::marker::Send + core[ab67b43d93431064]::marker::Sync> as core[ab67b43d93431064]::ops::function::Fn<(&std[ed5b486fa4cdb954]::panic::PanicHookInfo,)>>::call
[INFO] [stdout]                                at /rustc/7704328ba5ae8d6ce0ac303c9d5a1a1605906766/library/alloc/src/boxed.rs:2220:9
[INFO] [stdout]   12:     0x63070f2b92ce - test[f0ec78552bebb08e]::test_main_with_exit_callback::<test[f0ec78552bebb08e]::test_main::{closure#0}>::{closure#0}
[INFO] [stdout]                                at /rustc/7704328ba5ae8d6ce0ac303c9d5a1a1605906766/library/test/src/lib.rs:145:21
[INFO] [stdout]   13:     0x63070f31e692 - <alloc[8787631d7fe8ec5a]::boxed::Box<dyn for<'a, 'b> core[ab67b43d93431064]::ops::function::Fn<(&'a std[ed5b486fa4cdb954]::panic::PanicHookInfo<'b>,), Output = ()> + core[ab67b43d93431064]::marker::Send + core[ab67b43d93431064]::marker::Sync> as core[ab67b43d93431064]::ops::function::Fn<(&std[ed5b486fa4cdb954]::panic::PanicHookInfo,)>>::call
[INFO] [stdout]                                at /rustc/7704328ba5ae8d6ce0ac303c9d5a1a1605906766/library/alloc/src/boxed.rs:2220:9
[INFO] [stdout]   14:     0x63070f31e692 - std[ed5b486fa4cdb954]::panicking::panic_with_hook
[INFO] [stdout]                                at /rustc/7704328ba5ae8d6ce0ac303c9d5a1a1605906766/library/std/src/panicking.rs:833:13
[INFO] [stdout]   15:     0x63070f30475a - std[ed5b486fa4cdb954]::panicking::panic_handler::{closure#0}
[INFO] [stdout]                                at /rustc/7704328ba5ae8d6ce0ac303c9d5a1a1605906766/library/std/src/panicking.rs:691:13
[INFO] [stdout]   16:     0x63070f2fc189 - std[ed5b486fa4cdb954]::sys::backtrace::__rust_end_short_backtrace::<std[ed5b486fa4cdb954]::panicking::panic_handler::{closure#0}, !>
[INFO] [stdout]                                at /rustc/7704328ba5ae8d6ce0ac303c9d5a1a1605906766/library/std/src/sys/backtrace.rs:182:18
[INFO] [stdout]   17:     0x63070f30557d - __rustc[5067f77124470312]::rust_begin_unwind
[INFO] [stdout]                                at /rustc/7704328ba5ae8d6ce0ac303c9d5a1a1605906766/library/std/src/panicking.rs:689:5
[INFO] [stdout]   18:     0x63070f33b16c - core[ab67b43d93431064]::panicking::panic_fmt
[INFO] [stdout]                                at /rustc/7704328ba5ae8d6ce0ac303c9d5a1a1605906766/library/core/src/panicking.rs:80:14
[INFO] [stdout]   19:     0x63070f28de0d - approximate_sliding_window_core2[586fc7d5ba1a36c0]::test_contention_failure
[INFO] [stdout]                                at /opt/rustwide/workdir/tests/approximate_sliding_window_core2.rs:38:5
[INFO] [stdout]   20:     0x63070f288497 - approximate_sliding_window_core2[586fc7d5ba1a36c0]::test_contention_failure::{closure#0}
[INFO] [stdout]                                at /opt/rustwide/workdir/tests/approximate_sliding_window_core2.rs:5:29
[INFO] [stdout]   21:     0x63070f2aa956 - <approximate_sliding_window_core2[586fc7d5ba1a36c0]::test_contention_failure::{closure#0} as core[ab67b43d93431064]::ops::function::FnOnce<()>>::call_once
[INFO] [stdout]                                at /rustc/7704328ba5ae8d6ce0ac303c9d5a1a1605906766/library/core/src/ops/function.rs:250:5
[INFO] [stdout]   22:     0x63070f2ad67b - <fn() -> core[ab67b43d93431064]::result::Result<(), alloc[8787631d7fe8ec5a]::string::String> as core[ab67b43d93431064]::ops::function::FnOnce<()>>::call_once
[INFO] [stdout]                                at /rustc/7704328ba5ae8d6ce0ac303c9d5a1a1605906766/library/core/src/ops/function.rs:250:5
[INFO] [stdout]   23:     0x63070f2ad67b - test[f0ec78552bebb08e]::__rust_begin_short_backtrace::<core[ab67b43d93431064]::result::Result<(), alloc[8787631d7fe8ec5a]::string::String>, fn() -> core[ab67b43d93431064]::result::Result<(), alloc[8787631d7fe8ec5a]::string::String>>
[INFO] [stdout]                                at /rustc/7704328ba5ae8d6ce0ac303c9d5a1a1605906766/library/test/src/lib.rs:663:18
[INFO] [stdout]   24:     0x63070f2b9eda - test[f0ec78552bebb08e]::run_test_in_process::{closure#0}
[INFO] [stdout]                                at /rustc/7704328ba5ae8d6ce0ac303c9d5a1a1605906766/library/test/src/lib.rs:686:74
[INFO] [stdout]   25:     0x63070f2b9eda - <core[ab67b43d93431064]::panic::unwind_safe::AssertUnwindSafe<test[f0ec78552bebb08e]::run_test_in_process::{closure#0}> as core[ab67b43d93431064]::ops::function::FnOnce<()>>::call_once
[INFO] [stdout]                                at /rustc/7704328ba5ae8d6ce0ac303c9d5a1a1605906766/library/core/src/panic/unwind_safe.rs:274:9
[INFO] [stdout]   26:     0x63070f2b9eda - std[ed5b486fa4cdb954]::panicking::catch_unwind::do_call::<core[ab67b43d93431064]::panic::unwind_safe::AssertUnwindSafe<test[f0ec78552bebb08e]::run_test_in_process::{closure#0}>, core[ab67b43d93431064]::result::Result<(), alloc[8787631d7fe8ec5a]::string::String>>
[INFO] [stdout]                                at /rustc/7704328ba5ae8d6ce0ac303c9d5a1a1605906766/library/std/src/panicking.rs:581:40
[INFO] [stdout]   27:     0x63070f2b9eda - std[ed5b486fa4cdb954]::panicking::catch_unwind::<core[ab67b43d93431064]::result::Result<(), alloc[8787631d7fe8ec5a]::string::String>, core[ab67b43d93431064]::panic::unwind_safe::AssertUnwindSafe<test[f0ec78552bebb08e]::run_test_in_process::{closure#0}>>
[INFO] [stdout]                                at /rustc/7704328ba5ae8d6ce0ac303c9d5a1a1605906766/library/std/src/panicking.rs:544:19
[INFO] [stdout]   28:     0x63070f2b9eda - std[ed5b486fa4cdb954]::panic::catch_unwind::<core[ab67b43d93431064]::panic::unwind_safe::AssertUnwindSafe<test[f0ec78552bebb08e]::run_test_in_process::{closure#0}>, core[ab67b43d93431064]::result::Result<(), alloc[8787631d7fe8ec5a]::string::String>>
[INFO] [stdout]                                at /rustc/7704328ba5ae8d6ce0ac303c9d5a1a1605906766/library/std/src/panic.rs:359:14
[INFO] [stdout]   29:     0x63070f2b9eda - test[f0ec78552bebb08e]::run_test_in_process
[INFO] [stdout]                                at /rustc/7704328ba5ae8d6ce0ac303c9d5a1a1605906766/library/test/src/lib.rs:686:27
[INFO] [stdout]   30:     0x63070f2b9eda - test[f0ec78552bebb08e]::run_test::{closure#0}
[INFO] [stdout]                                at /rustc/7704328ba5ae8d6ce0ac303c9d5a1a1605906766/library/test/src/lib.rs:607:43
[INFO] [stdout]   31:     0x63070f2b5484 - test[f0ec78552bebb08e]::run_test::{closure#1}
[INFO] [stdout]                                at /rustc/7704328ba5ae8d6ce0ac303c9d5a1a1605906766/library/test/src/lib.rs:637:41
[INFO] [stdout]   32:     0x63070f2b5484 - std[ed5b486fa4cdb954]::sys::backtrace::__rust_begin_short_backtrace::<test[f0ec78552bebb08e]::run_test::{closure#1}, ()>
[INFO] [stdout]                                at /rustc/7704328ba5ae8d6ce0ac303c9d5a1a1605906766/library/std/src/sys/backtrace.rs:166:18
[INFO] [stdout]   33:     0x63070f2bc9d2 - std[ed5b486fa4cdb954]::thread::lifecycle::spawn_unchecked::<test[f0ec78552bebb08e]::run_test::{closure#1}, ()>::{closure#1}::{closure#0}
[INFO] [stdout]                                at /rustc/7704328ba5ae8d6ce0ac303c9d5a1a1605906766/library/std/src/thread/lifecycle.rs:91:13
[INFO] [stdout]   34:     0x63070f2bc9d2 - <core[ab67b43d93431064]::panic::unwind_safe::AssertUnwindSafe<std[ed5b486fa4cdb954]::thread::lifecycle::spawn_unchecked<test[f0ec78552bebb08e]::run_test::{closure#1}, ()>::{closure#1}::{closure#0}> as core[ab67b43d93431064]::ops::function::FnOnce<()>>::call_once
[INFO] [stdout]                                at /rustc/7704328ba5ae8d6ce0ac303c9d5a1a1605906766/library/core/src/panic/unwind_safe.rs:274:9
[INFO] [stdout]   35:     0x63070f2bc9d2 - std[ed5b486fa4cdb954]::panicking::catch_unwind::do_call::<core[ab67b43d93431064]::panic::unwind_safe::AssertUnwindSafe<std[ed5b486fa4cdb954]::thread::lifecycle::spawn_unchecked<test[f0ec78552bebb08e]::run_test::{closure#1}, ()>::{closure#1}::{closure#0}>, ()>
[INFO] [stdout]                                at /rustc/7704328ba5ae8d6ce0ac303c9d5a1a1605906766/library/std/src/panicking.rs:581:40
[INFO] [stdout]   36:     0x63070f2bc9d2 - std[ed5b486fa4cdb954]::panicking::catch_unwind::<(), core[ab67b43d93431064]::panic::unwind_safe::AssertUnwindSafe<std[ed5b486fa4cdb954]::thread::lifecycle::spawn_unchecked<test[f0ec78552bebb08e]::run_test::{closure#1}, ()>::{closure#1}::{closure#0}>>
[INFO] [stdout]                                at /rustc/7704328ba5ae8d6ce0ac303c9d5a1a1605906766/library/std/src/panicking.rs:544:19
[INFO] [stdout]   37:     0x63070f2bc9d2 - std[ed5b486fa4cdb954]::panic::catch_unwind::<core[ab67b43d93431064]::panic::unwind_safe::AssertUnwindSafe<std[ed5b486fa4cdb954]::thread::lifecycle::spawn_unchecked<test[f0ec78552bebb08e]::run_test::{closure#1}, ()>::{closure#1}::{closure#0}>, ()>
[INFO] [stdout]                                at /rustc/7704328ba5ae8d6ce0ac303c9d5a1a1605906766/library/std/src/panic.rs:359:14
[INFO] [stdout]   38:     0x63070f2bc9d2 - std[ed5b486fa4cdb954]::thread::lifecycle::spawn_unchecked::<test[f0ec78552bebb08e]::run_test::{closure#1}, ()>::{closure#1}
[INFO] [stdout]                                at /rustc/7704328ba5ae8d6ce0ac303c9d5a1a1605906766/library/std/src/thread/lifecycle.rs:89:26
[INFO] [stdout]   39:     0x63070f2bc9d2 - <std[ed5b486fa4cdb954]::thread::lifecycle::spawn_unchecked<test[f0ec78552bebb08e]::run_test::{closure#1}, ()>::{closure#1} as core[ab67b43d93431064]::ops::function::FnOnce<()>>::call_once::{shim:vtable#0}
[INFO] [stdout]                                at /rustc/7704328ba5ae8d6ce0ac303c9d5a1a1605906766/library/core/src/ops/function.rs:250:5
[INFO] [stdout]   40:     0x63070f325b1f - <alloc[8787631d7fe8ec5a]::boxed::Box<dyn core[ab67b43d93431064]::ops::function::FnOnce<(), Output = ()> + core[ab67b43d93431064]::marker::Send> as core[ab67b43d93431064]::ops::function::FnOnce<()>>::call_once
[INFO] [stdout]                                at /rustc/7704328ba5ae8d6ce0ac303c9d5a1a1605906766/library/alloc/src/boxed.rs:2206:9
[INFO] [stdout]   41:     0x63070f325b1f - <std[ed5b486fa4cdb954]::sys::thread::unix::Thread>::new::thread_start
[INFO] [stdout]                                at /rustc/7704328ba5ae8d6ce0ac303c9d5a1a1605906766/library/std/src/sys/thread/unix.rs:127:17
[INFO] [stdout]   42:     0x7bd8b2669aa4 - <unknown>
[INFO] [stdout]   43:     0x7bd8b26f6a64 - clone
[INFO] [stdout]   44:                0x0 - <unknown>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout]     test_contention_failure
[INFO] [stdout] 
[INFO] [stdout] test result: FAILED. 10 passed; 1 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.10s
[INFO] [stdout] 
[INFO] [stderr] error: test failed, to rerun pass `--test approximate_sliding_window_core2`
[INFO] running `Command { std: "docker" "inspect" "a84c722d512ff4aa96e48ee9155940a6cf98eae086e1bca37ec39089a446f966", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a84c722d512ff4aa96e48ee9155940a6cf98eae086e1bca37ec39089a446f966", kill_on_drop: false }`
[INFO] [stdout] a84c722d512ff4aa96e48ee9155940a6cf98eae086e1bca37ec39089a446f966