[INFO] fetching crate taikai 0.1.0... [INFO] checking taikai-0.1.0 against try#d9c49acb7b15e0b6e1b797982100ad6c5d1424a2 for pr-63809 [INFO] extracting crate taikai 0.1.0 into /workspace/builds/worker-1/source [INFO] validating manifest of crates.io crate taikai 0.1.0 on toolchain d9c49acb7b15e0b6e1b797982100ad6c5d1424a2 [INFO] running `"/workspace/cargo-home/bin/cargo" "+d9c49acb7b15e0b6e1b797982100ad6c5d1424a2" "read-manifest" "--manifest-path" "Cargo.toml"` [INFO] started tweaking crates.io crate taikai 0.1.0 [INFO] finished tweaking crates.io crate taikai 0.1.0 [INFO] tweaked toml for crates.io crate taikai 0.1.0 written to /workspace/builds/worker-1/source/Cargo.toml [INFO] running `"/workspace/cargo-home/bin/cargo" "+d9c49acb7b15e0b6e1b797982100ad6c5d1424a2" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"` [INFO] running `"/workspace/cargo-home/bin/cargo" "+d9c49acb7b15e0b6e1b797982100ad6c5d1424a2" "fetch" "--locked" "--manifest-path" "Cargo.toml"` [INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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" "+d9c49acb7b15e0b6e1b797982100ad6c5d1424a2" "check" "--frozen" "--all" "--all-targets"` [INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap. [INFO] [stdout] b773463b26e8da0f7854905b1ce337909c662405a664a09e6908945163ad31fb [INFO] running `"docker" "start" "-a" "b773463b26e8da0f7854905b1ce337909c662405a664a09e6908945163ad31fb"` [INFO] [stderr] Compiling syn v1.0.5 [INFO] [stderr] Checking either v1.5.3 [INFO] [stderr] Checking tuple_utils v0.3.0 [INFO] [stderr] Compiling yaml-rust v0.4.3 [INFO] [stderr] Compiling itertools v0.7.11 [INFO] [stderr] Checking heck v0.3.1 [INFO] [stderr] Compiling encoding_rs v0.8.20 [INFO] [stderr] Checking memchr v2.2.1 [INFO] [stderr] Checking backtrace-sys v0.1.32 [INFO] [stderr] Checking serde_yaml v0.8.11 [INFO] [stderr] Checking backtrace v0.3.40 [INFO] [stderr] Checking nom v4.2.3 [INFO] [stderr] Compiling synstructure v0.12.1 [INFO] [stderr] Compiling failure_derive v0.1.6 [INFO] [stderr] Compiling serde_derive v1.0.101 [INFO] [stderr] Compiling failure v0.1.6 [INFO] [stderr] Compiling taikai v0.1.0 (/opt/rustwide/workdir) [INFO] [stderr] warning: unused variable: `path` [INFO] [stderr] --> src/type_spec.rs:134:36 [INFO] [stderr] | [INFO] [stderr] 134 | pub fn resolve_enum(&self, mut path: Vec<&str>) -> Enum { [INFO] [stderr] | ^^^^ help: consider prefixing with an underscore: `_path` [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_variables)]` on by default [INFO] [stderr] [INFO] [stderr] warning: unused variable: `e` [INFO] [stderr] --> src/attribute.rs:212:43 [INFO] [stderr] | [INFO] [stderr] 212 | let read_scalar = if let Some(ref e) = self.enum_ { [INFO] [stderr] | ^ help: consider prefixing with an underscore: `_e` [INFO] [stderr] [INFO] [stderr] warning: variable does not need to be mutable [INFO] [stderr] --> src/type_spec.rs:134:32 [INFO] [stderr] | [INFO] [stderr] 134 | pub fn resolve_enum(&self, mut path: Vec<&str>) -> Enum { [INFO] [stderr] | ----^^^^ [INFO] [stderr] | | [INFO] [stderr] | help: remove this `mut` [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_mut)]` on by default [INFO] [stderr] [INFO] [stderr] warning: unused variable: `path` [INFO] [stderr] --> src/type_spec.rs:134:36 [INFO] [stderr] | [INFO] [stderr] 134 | pub fn resolve_enum(&self, mut path: Vec<&str>) -> Enum { [INFO] [stderr] | ^^^^ help: consider prefixing with an underscore: `_path` [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_variables)]` on by default [INFO] [stderr] [INFO] [stderr] warning: unused variable: `e` [INFO] [stderr] --> src/attribute.rs:212:43 [INFO] [stderr] | [INFO] [stderr] 212 | let read_scalar = if let Some(ref e) = self.enum_ { [INFO] [stderr] | ^ help: consider prefixing with an underscore: `_e` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `path` [INFO] [stderr] --> src/type_spec.rs:134:36 [INFO] [stderr] | [INFO] [stderr] 134 | pub fn resolve_enum(&self, mut path: Vec<&str>) -> Enum { [INFO] [stderr] | ^^^^ help: consider prefixing with an underscore: `_path` [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_variables)]` on by default [INFO] [stderr] [INFO] [stderr] warning: unused variable: `e` [INFO] [stderr] --> src/attribute.rs:212:43 [INFO] [stderr] | [INFO] [stderr] 212 | let read_scalar = if let Some(ref e) = self.enum_ { [INFO] [stderr] | ^ help: consider prefixing with an underscore: `_e` [INFO] [stderr] [INFO] [stderr] warning: variable does not need to be mutable [INFO] [stderr] --> src/type_spec.rs:134:32 [INFO] [stderr] | [INFO] [stderr] 134 | pub fn resolve_enum(&self, mut path: Vec<&str>) -> Enum { [INFO] [stderr] | ----^^^^ [INFO] [stderr] | | [INFO] [stderr] | help: remove this `mut` [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_mut)]` on by default [INFO] [stderr] [INFO] [stderr] warning: variable does not need to be mutable [INFO] [stderr] --> src/type_spec.rs:134:32 [INFO] [stderr] | [INFO] [stderr] 134 | pub fn resolve_enum(&self, mut path: Vec<&str>) -> Enum { [INFO] [stderr] | ----^^^^ [INFO] [stderr] | | [INFO] [stderr] | help: remove this `mut` [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_mut)]` on by default [INFO] [stderr] [INFO] [stderr] thread 'rustc' panicked at '15 `proc_macro` handles were leaked', src/libproc_macro/bridge/handle.rs:31:9 [INFO] [stderr] stack backtrace: [INFO] [stderr] 0: 0x7fd37a6b6732 - backtrace::backtrace::libunwind::trace::ha352555390565dd7 [INFO] [stderr] at /cargo/registry/src/github.com-1ecc6299db9ec823/backtrace-0.3.35/src/backtrace/libunwind.rs:88 [INFO] [stderr] 1: 0x7fd37a6b6732 - backtrace::backtrace::trace_unsynchronized::ha089c406e393ed83 [INFO] [stderr] at /cargo/registry/src/github.com-1ecc6299db9ec823/backtrace-0.3.35/src/backtrace/mod.rs:66 [INFO] [stderr] 2: 0x7fd37a6b6732 - std::sys_common::backtrace::_print::h0537ccb43946da74 [INFO] [stderr] at src/libstd/sys_common/backtrace.rs:47 [INFO] [stderr] 3: 0x7fd37a6b6732 - std::sys_common::backtrace::print::ha867b8317a7ce1eb [INFO] [stderr] at src/libstd/sys_common/backtrace.rs:36 [INFO] [stderr] 4: 0x7fd37a6b6732 - std::panicking::default_hook::{{closure}}::hbaaa8eadd299f841 [INFO] [stderr] at src/libstd/panicking.rs:200 [INFO] [stderr] 5: 0x7fd37a6b6416 - std::panicking::default_hook::hf8ea0e56320be629 [INFO] [stderr] at src/libstd/panicking.rs:214 [INFO] [stderr] 6: 0x7fd37c56cb51 - rustc::util::common::panic_hook::h9a1b9726976408fa [INFO] [stderr] 7: 0x7fd37a6b6f6c - std::panicking::rust_panic_with_hook::h4bed17f25af9115b [INFO] [stderr] at src/libstd/panicking.rs:481 [INFO] [stderr] 8: 0x7fd37a6b6a22 - std::panicking::continue_panic_fmt::h8aa381c1da879134 [INFO] [stderr] at src/libstd/panicking.rs:384 [INFO] [stderr] 9: 0x7fd37a6b697c - std::panicking::begin_panic_fmt::h7b27683317eb483c [INFO] [stderr] at src/libstd/panicking.rs:339 [INFO] [stderr] 10: 0x7fd37c751f0a - core::ptr::real_drop_in_place::hbc87a23b605d538a [INFO] [stderr] 11: 0x7fd37c73e6bd - proc_macro::bridge::server::run_server::h894631e8db359c95 [INFO] [stderr] 12: 0x7fd37c85ec50 - ::expand::h2bc2b2cebfe5e9dc [INFO] [stderr] 13: 0x7fd37c854c67 - syntax::ext::expand::MacroExpander::fully_expand_fragment::h48730d0fb80db489 [INFO] [stderr] 14: 0x7fd37c852787 - syntax::ext::expand::MacroExpander::expand_crate::h80416d25047316c8 [INFO] [stderr] 15: 0x7fd37acf3545 - rustc_interface::passes::configure_and_expand_inner::{{closure}}::h5a3e0ec4dcfe0ee1 [INFO] [stderr] 16: 0x7fd37acf1005 - rustc::util::common::time::hc4ec1e854868a674 [INFO] [stderr] 17: 0x7fd37ac92ab7 - rustc_interface::passes::configure_and_expand_inner::h4320e066b10a99a7 [INFO] [stderr] 18: 0x7fd37acf2908 - rustc_interface::passes::configure_and_expand::{{closure}}::h60f36bf665b9fe69 [INFO] [stderr] 19: 0x7fd37acc9602 - rustc_data_structures::box_region::PinnedGenerator::new::h6153fa5bd7741394 [INFO] [stderr] 20: 0x7fd37ac8f9d3 - rustc_interface::passes::configure_and_expand::h43da2098165757f2 [INFO] [stderr] 21: 0x7fd37ac82dfa - rustc_interface::queries::Query::compute::hf190164a29200317 [INFO] [stderr] 22: 0x7fd37ad584c4 - rustc_interface::queries::::expansion::ha2bbf9dc482ae1f5 [INFO] [stderr] 23: 0x7fd37aba57c5 - rustc_interface::interface::run_compiler_in_existing_thread_pool::h51e2f43fdc793b13 [INFO] [stderr] 24: 0x7fd37abd0682 - std::thread::local::LocalKey::with::h949b1e80167e9dbc [INFO] [stderr] 25: 0x7fd37abe78b0 - syntax::with_globals::hfe0e0bead10930bc [INFO] [stderr] 26: 0x7fd37ab8c782 - std::sys_common::backtrace::__rust_begin_short_backtrace::h118db34080be69d6 [INFO] [stderr] 27: 0x7fd37a6c782a - __rust_maybe_catch_panic [INFO] [stderr] at src/libpanic_unwind/lib.rs:80 [INFO] [stderr] 28: 0x7fd37ab991b9 - core::ops::function::FnOnce::call_once{{vtable.shim}}::h83da678f4d51b98f [INFO] [stderr] 29: 0x7fd37a69a3ff - as core::ops::function::FnOnce>::call_once::ha8484aa1b6afea01 [INFO] [stderr] at /rustc/d9c49acb7b15e0b6e1b797982100ad6c5d1424a2/src/liballoc/boxed.rs:922 [INFO] [stderr] 30: 0x7fd37a6c64b0 - as core::ops::function::FnOnce>::call_once::he52dab5ac424d9ea [INFO] [stderr] at /rustc/d9c49acb7b15e0b6e1b797982100ad6c5d1424a2/src/liballoc/boxed.rs:922 [INFO] [stderr] 31: 0x7fd37a6c64b0 - std::sys_common::thread::start_thread::hfa3dbc17729e49f5 [INFO] [stderr] at src/libstd/sys_common/thread.rs:13 [INFO] [stderr] 32: 0x7fd37a6c64b0 - std::sys::unix::thread::Thread::new::thread_start::hde5678730fa9c6f8 [INFO] [stderr] at src/libstd/sys/unix/thread.rs:79 [INFO] [stderr] 33: 0x7fd37a4366db - start_thread [INFO] [stderr] 34: 0x7fd379d5388f - __clone [INFO] [stderr] 35: 0x0 - [INFO] [stderr] query stack during panic: [INFO] [stderr] end of query stack [INFO] [stderr] [INFO] [stderr] error: internal compiler error: unexpected panic [INFO] [stderr] [INFO] [stderr] note: the compiler unexpectedly panicked. this is a bug. [INFO] [stderr] [INFO] [stderr] note: we would appreciate a bug report: https://github.com/rust-lang/rust/blob/master/CONTRIBUTING.md#bug-reports [INFO] [stderr] [INFO] [stderr] note: rustc 1.39.0-nightly (d9c49acb7 2019-08-22) running on x86_64-unknown-linux-gnu [INFO] [stderr] [INFO] [stderr] note: compiler flags: -C debuginfo=2 [INFO] [stderr] [INFO] [stderr] note: some of the compiler flags provided by cargo are hidden [INFO] [stderr] [INFO] [stderr] error: Could not compile `taikai`. [INFO] [stderr] [INFO] [stderr] To learn more, run the command again with --verbose. [INFO] running `"docker" "inspect" "b773463b26e8da0f7854905b1ce337909c662405a664a09e6908945163ad31fb"` [INFO] running `"docker" "rm" "-f" "b773463b26e8da0f7854905b1ce337909c662405a664a09e6908945163ad31fb"` [INFO] [stdout] b773463b26e8da0f7854905b1ce337909c662405a664a09e6908945163ad31fb