[INFO] crate mcs 0.1.1 is already in cache [INFO] testing mcs-0.1.1 against try#41997647ba6a77908f6ef64401414feb00bccf16 for pr-71274 [INFO] extracting crate mcs 0.1.1 into /workspace/builds/worker-6/source [INFO] validating manifest of crates.io crate mcs 0.1.1 on toolchain 41997647ba6a77908f6ef64401414feb00bccf16 [INFO] running `"/workspace/cargo-home/bin/cargo" "+41997647ba6a77908f6ef64401414feb00bccf16" "read-manifest" "--manifest-path" "Cargo.toml"` [INFO] started tweaking crates.io crate mcs 0.1.1 [INFO] finished tweaking crates.io crate mcs 0.1.1 [INFO] tweaked toml for crates.io crate mcs 0.1.1 written to /workspace/builds/worker-6/source/Cargo.toml [INFO] running `"/workspace/cargo-home/bin/cargo" "+41997647ba6a77908f6ef64401414feb00bccf16" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"` [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] running `"/workspace/cargo-home/bin/cargo" "+41997647ba6a77908f6ef64401414feb00bccf16" "fetch" "--locked" "--manifest-path" "Cargo.toml"` [INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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" "MAP_USER_ID=0" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+41997647ba6a77908f6ef64401414feb00bccf16" "build" "--frozen"` [INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap. [INFO] [stdout] 57660b08a2b9b3980c7c61fd3033693234faa8576d6dabd327b6c756b9e28c0c [INFO] running `"docker" "start" "-a" "57660b08a2b9b3980c7c61fd3033693234faa8576d6dabd327b6c756b9e28c0c"` [INFO] [stderr] Compiling mcs v0.1.1 (/opt/rustwide/workdir) [INFO] [stderr] warning: unnecessary `unsafe` block [INFO] [stderr] --> src/mutex.rs:117:9 [INFO] [stderr] | [INFO] [stderr] 117 | unsafe { [INFO] [stderr] | ^^^^^^ unnecessary `unsafe` block [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_unsafe)]` on by default [INFO] [stderr] [INFO] [stderr] warning: the feature `generic_param_attrs` has been stable since 1.27.0 and no longer requires an attribute to enable [INFO] [stderr] --> src/lib.rs:1:58 [INFO] [stderr] | [INFO] [stderr] 1 | #![cfg_attr(feature = "unstable", feature(asm, const_fn, generic_param_attrs, dropck_eyepatch))] [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(stable_features)]` on by default [INFO] [stderr] [INFO] [stderr] warning: 2 warnings emitted [INFO] [stderr] [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 0.32s [INFO] running `"docker" "inspect" "57660b08a2b9b3980c7c61fd3033693234faa8576d6dabd327b6c756b9e28c0c"` [INFO] running `"docker" "rm" "-f" "57660b08a2b9b3980c7c61fd3033693234faa8576d6dabd327b6c756b9e28c0c"` [INFO] [stdout] 57660b08a2b9b3980c7c61fd3033693234faa8576d6dabd327b6c756b9e28c0c [INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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" "MAP_USER_ID=0" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+41997647ba6a77908f6ef64401414feb00bccf16" "test" "--frozen" "--no-run"` [INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap. [INFO] [stdout] e7c00841975ad4214461635437c0b488a463ede40e28bc433f2566785a204afb [INFO] running `"docker" "start" "-a" "e7c00841975ad4214461635437c0b488a463ede40e28bc433f2566785a204afb"` [INFO] [stderr] Compiling mcs v0.1.1 (/opt/rustwide/workdir) [INFO] [stderr] warning: unnecessary `unsafe` block [INFO] [stderr] --> src/mutex.rs:117:9 [INFO] [stderr] | [INFO] [stderr] 117 | unsafe { [INFO] [stderr] | ^^^^^^ unnecessary `unsafe` block [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_unsafe)]` on by default [INFO] [stderr] [INFO] [stderr] warning: the feature `generic_param_attrs` has been stable since 1.27.0 and no longer requires an attribute to enable [INFO] [stderr] --> src/lib.rs:1:58 [INFO] [stderr] | [INFO] [stderr] 1 | #![cfg_attr(feature = "unstable", feature(asm, const_fn, generic_param_attrs, dropck_eyepatch))] [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(stable_features)]` on by default [INFO] [stderr] [INFO] [stderr] warning: 2 warnings emitted [INFO] [stderr] [INFO] [stderr] warning: use of deprecated item 'lazy_static::lazy::ONCE_INIT': the `new` function is now preferred [INFO] [stderr] --> src/mutex.rs:281:9 [INFO] [stderr] | [INFO] [stderr] 281 | / lazy_static! { [INFO] [stderr] 282 | | static ref LOCK: Mutex = Mutex::new(0); [INFO] [stderr] 283 | | } [INFO] [stderr] | |_________^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(deprecated)]` on by default [INFO] [stderr] = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info) [INFO] [stderr] [INFO] [stderr] warning: unnecessary `unsafe` block [INFO] [stderr] --> src/mutex.rs:117:9 [INFO] [stderr] | [INFO] [stderr] 117 | unsafe { [INFO] [stderr] | ^^^^^^ unnecessary `unsafe` block [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_unsafe)]` on by default [INFO] [stderr] [INFO] [stderr] warning: the feature `generic_param_attrs` has been stable since 1.27.0 and no longer requires an attribute to enable [INFO] [stderr] --> src/lib.rs:1:58 [INFO] [stderr] | [INFO] [stderr] 1 | #![cfg_attr(feature = "unstable", feature(asm, const_fn, generic_param_attrs, dropck_eyepatch))] [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(stable_features)]` on by default [INFO] [stderr] [INFO] [stderr] warning: 3 warnings emitted [INFO] [stderr] [INFO] [stderr] Finished test [unoptimized + debuginfo] target(s) in 1.58s [INFO] running `"docker" "inspect" "e7c00841975ad4214461635437c0b488a463ede40e28bc433f2566785a204afb"` [INFO] running `"docker" "rm" "-f" "e7c00841975ad4214461635437c0b488a463ede40e28bc433f2566785a204afb"` [INFO] [stdout] e7c00841975ad4214461635437c0b488a463ede40e28bc433f2566785a204afb [INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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" "MAP_USER_ID=0" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+41997647ba6a77908f6ef64401414feb00bccf16" "test" "--frozen"` [INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap. [INFO] [stdout] 389ad04f159f6fdc50bbc5ba52c85c6383c255727b728509cb197456484d5e23 [INFO] running `"docker" "start" "-a" "389ad04f159f6fdc50bbc5ba52c85c6383c255727b728509cb197456484d5e23"` [INFO] [stderr] warning: unnecessary `unsafe` block [INFO] [stderr] --> src/mutex.rs:117:9 [INFO] [stderr] | [INFO] [stderr] 117 | unsafe { [INFO] [stderr] | ^^^^^^ unnecessary `unsafe` block [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_unsafe)]` on by default [INFO] [stderr] [INFO] [stderr] warning: the feature `generic_param_attrs` has been stable since 1.27.0 and no longer requires an attribute to enable [INFO] [stderr] --> src/lib.rs:1:58 [INFO] [stderr] | [INFO] [stderr] 1 | #![cfg_attr(feature = "unstable", feature(asm, const_fn, generic_param_attrs, dropck_eyepatch))] [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(stable_features)]` on by default [INFO] [stderr] [INFO] [stderr] warning: 2 warnings emitted [INFO] [stderr] [INFO] [stderr] warning: use of deprecated item 'lazy_static::lazy::ONCE_INIT': the `new` function is now preferred [INFO] [stderr] --> src/mutex.rs:281:9 [INFO] [stderr] | [INFO] [stderr] 281 | / lazy_static! { [INFO] [stderr] 282 | | static ref LOCK: Mutex = Mutex::new(0); [INFO] [stderr] 283 | | } [INFO] [stderr] | |_________^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(deprecated)]` on by default [INFO] [stderr] = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info) [INFO] [stderr] [INFO] [stderr] warning: unnecessary `unsafe` block [INFO] [stderr] --> src/mutex.rs:117:9 [INFO] [stderr] | [INFO] [stderr] 117 | unsafe { [INFO] [stderr] | ^^^^^^ unnecessary `unsafe` block [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_unsafe)]` on by default [INFO] [stderr] [INFO] [stderr] warning: the feature `generic_param_attrs` has been stable since 1.27.0 and no longer requires an attribute to enable [INFO] [stderr] --> src/lib.rs:1:58 [INFO] [stderr] | [INFO] [stderr] 1 | #![cfg_attr(feature = "unstable", feature(asm, const_fn, generic_param_attrs, dropck_eyepatch))] [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(stable_features)]` on by default [INFO] [stderr] [INFO] [stderr] warning: 3 warnings emitted [INFO] [stderr] [INFO] [stderr] Finished test [unoptimized + debuginfo] target(s) in 0.06s [INFO] [stderr] Running /opt/rustwide/target/debug/deps/mcs-4b9c840d9eac448a [INFO] [stdout] [INFO] [stdout] running 9 tests [INFO] [stdout] test mutex::test::test_into_inner ... ok [INFO] [stdout] test mutex::test::test_into_inner_drop ... ok [INFO] [stdout] test mutex::test::smoke ... ok [INFO] [stdout] test mutex::test::test_get_mut ... ok [INFO] [stdout] test mutex::test::try_lock ... ok [INFO] [stdout] test mutex::test::test_lock_unsized ... ok [INFO] [stderr] thread '' panicked at 'explicit panic', src/mutex.rs:384:13 [INFO] [stderr] stack backtrace: [INFO] [stdout] test mutex::test::test_lock_arc_nested ... ok [INFO] [stdout] test mutex::test::lots_and_lots ... ok [INFO] [stderr] 0: 0x55f87689dba4 - backtrace::backtrace::libunwind::trace::h61666fa4b9834a45 [INFO] [stderr] at /cargo/registry/src/github.com-1ecc6299db9ec823/backtrace-0.3.46/src/backtrace/libunwind.rs:86 [INFO] [stderr] 1: 0x55f87689dba4 - backtrace::backtrace::trace_unsynchronized::h01d3725fb5da8653 [INFO] [stderr] at /cargo/registry/src/github.com-1ecc6299db9ec823/backtrace-0.3.46/src/backtrace/mod.rs:66 [INFO] [stderr] 2: 0x55f87689dba4 - std::sys_common::backtrace::_print_fmt::h5c7c4751bc296f90 [INFO] [stderr] at src/libstd/sys_common/backtrace.rs:78 [INFO] [stderr] 3: 0x55f87689dba4 - ::fmt::h7729313ad2d729c7 [INFO] [stderr] at src/libstd/sys_common/backtrace.rs:59 [INFO] [stderr] 4: 0x55f8768c684c - core::fmt::write::hb0049f6c12bdaffc [INFO] [stderr] at src/libcore/fmt/mod.rs:1069 [INFO] [stderr] 5: 0x55f87689a783 - std::io::Write::write_fmt::hfb486fa6ccb90f14 [INFO] [stderr] at src/libstd/io/mod.rs:1504 [INFO] [stderr] 6: 0x55f8768a0475 - std::sys_common::backtrace::_print::ha087cac92e84a414 [INFO] [stderr] at src/libstd/sys_common/backtrace.rs:62 [INFO] [stderr] 7: 0x55f8768a0475 - std::sys_common::backtrace::print::h6b013d3bfe6cbcb8 [INFO] [stderr] at src/libstd/sys_common/backtrace.rs:49 [INFO] [stderr] 8: 0x55f8768a0475 - std::panicking::default_hook::{{closure}}::h016d7de02def2736 [INFO] [stderr] at src/libstd/panicking.rs:198 [INFO] [stderr] 9: 0x55f8768a01b2 - std::panicking::default_hook::h9386f7e484840463 [INFO] [stderr] at src/libstd/panicking.rs:218 [INFO] [stderr] 10: 0x55f8768a0ad2 - std::panicking::rust_panic_with_hook::h3846eb1b2e5a9312 [INFO] [stderr] at src/libstd/panicking.rs:511 [INFO] [stderr] 11: 0x55f8768a06bb - rust_begin_unwind [INFO] [stderr] at src/libstd/panicking.rs:419 [INFO] [stderr] 12: 0x55f8768c5271 - core::panicking::panic_fmt::hc5953a7331f9805c [INFO] [stderr] at src/libcore/panicking.rs:111 [INFO] [stderr] 13: 0x55f8768c51bd - core::panicking::panic::hbfb03ddd2cbb509e [INFO] [stderr] at src/libcore/panicking.rs:54 [INFO] [stderr] 14: 0x55f876845d9a - mcs::mutex::test::test_lock_arc_access_in_unwind::{{closure}}::h5f6b86b8048fe0b1 [INFO] [stderr] at src/mutex.rs:384 [INFO] [stderr] 15: 0x55f8768415ca - std::sys_common::backtrace::__rust_begin_short_backtrace::h3754f1333c96b19c [INFO] [stderr] at /rustc/41997647ba6a77908f6ef64401414feb00bccf16/src/libstd/sys_common/backtrace.rs:130 [INFO] [stderr] 16: 0x55f87683ae9a - std::thread::Builder::spawn_unchecked::{{closure}}::{{closure}}::h5bbde9b02c374535 [INFO] [stderr] at /rustc/41997647ba6a77908f6ef64401414feb00bccf16/src/libstd/thread/mod.rs:475 [INFO] [stderr] 17: 0x55f87684be5e - as core::ops::function::FnOnce<()>>::call_once::he33ee96a52606cad [INFO] [stderr] at /rustc/41997647ba6a77908f6ef64401414feb00bccf16/src/libstd/panic.rs:318 [INFO] [stderr] 18: 0x55f876837bac - std::panicking::try::do_call::hdab4d282a6461d39 [INFO] [stderr] at /rustc/41997647ba6a77908f6ef64401414feb00bccf16/src/libstd/panicking.rs:331 [INFO] [stderr] 19: 0x55f87683885d - __rust_try [INFO] [stderr] 20: 0x55f8768377b7 - std::panicking::try::h3741a05eb9794e63 [INFO] [stderr] at /rustc/41997647ba6a77908f6ef64401414feb00bccf16/src/libstd/panicking.rs:274 [INFO] [stderr] 21: 0x55f87684c41e - std::panic::catch_unwind::h7efdd8833f70e21f [INFO] [stderr] at /rustc/41997647ba6a77908f6ef64401414feb00bccf16/src/libstd/panic.rs:394 [INFO] [stderr] 22: 0x55f87683a3ae - std::thread::Builder::spawn_unchecked::{{closure}}::h2aab2463974f196e [INFO] [stderr] at /rustc/41997647ba6a77908f6ef64401414feb00bccf16/src/libstd/thread/mod.rs:474 [INFO] [stderr] 23: 0x55f87684c5ce - core::ops::function::FnOnce::call_once{{vtable.shim}}::h2133fe00366526e6 [INFO] [stderr] at /rustc/41997647ba6a77908f6ef64401414feb00bccf16/src/libcore/ops/function.rs:232 [INFO] [stderr] 24: 0x55f8768943cf - as core::ops::function::FnOnce>::call_once::h7deaeeba480c6ce2 [INFO] [stderr] at /rustc/41997647ba6a77908f6ef64401414feb00bccf16/src/liballoc/boxed.rs:1008 [INFO] [stderr] 25: 0x55f8768a72b3 - as core::ops::function::FnOnce>::call_once::h968b1dfb87756523 [INFO] [stderr] at /rustc/41997647ba6a77908f6ef64401414feb00bccf16/src/liballoc/boxed.rs:1008 [INFO] [stderr] 26: 0x55f8768a72b3 - std::sys::unix::thread::Thread::new::thread_start::h2399addeb6370595 [INFO] [stderr] at src/libstd/sys/unix/thread.rs:87 [INFO] [stderr] 27: 0x7f3a17ccd6db - start_thread [INFO] [stderr] 28: 0x7f3a177de88f - __clone [INFO] [stderr] 29: 0x0 - [INFO] [stdout] test mutex::test::test_lock_arc_access_in_unwind ... ok [INFO] [stdout] [INFO] [stdout] test result: ok. 9 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out [INFO] [stdout] [INFO] [stderr] Doc-tests mcs [INFO] [stdout] [INFO] [stdout] running 1 test [INFO] [stdout] test src/mutex.rs - mutex::Mutex (line 34) ... ok [INFO] [stdout] [INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out [INFO] [stdout] [INFO] running `"docker" "inspect" "389ad04f159f6fdc50bbc5ba52c85c6383c255727b728509cb197456484d5e23"` [INFO] running `"docker" "rm" "-f" "389ad04f159f6fdc50bbc5ba52c85c6383c255727b728509cb197456484d5e23"` [INFO] [stdout] 389ad04f159f6fdc50bbc5ba52c85c6383c255727b728509cb197456484d5e23