[INFO] fetching crate ttv-pubsub 0.1.1... [INFO] checking ttv-pubsub-0.1.1 against try#9b49d8c6c904f63eb486fe51b14bbe0aa2feda4c for pr-79472 [INFO] extracting crate ttv-pubsub 0.1.1 into /workspace/builds/worker-8/source [INFO] validating manifest of crates.io crate ttv-pubsub 0.1.1 on toolchain 9b49d8c6c904f63eb486fe51b14bbe0aa2feda4c [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+9b49d8c6c904f63eb486fe51b14bbe0aa2feda4c" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] started tweaking crates.io crate ttv-pubsub 0.1.1 [INFO] finished tweaking crates.io crate ttv-pubsub 0.1.1 [INFO] tweaked toml for crates.io crate ttv-pubsub 0.1.1 written to /workspace/builds/worker-8/source/Cargo.toml [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+9b49d8c6c904f63eb486fe51b14bbe0aa2feda4c" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }` [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+9b49d8c6c904f63eb486fe51b14bbe0aa2feda4c" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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" "rustops/crates-build-env@sha256:c8ac004eab7d63a0ad09a2dde3d3353ba464f767bee4de425dc8f74c46a1905e" "/opt/rustwide/cargo-home/bin/cargo" "+9b49d8c6c904f63eb486fe51b14bbe0aa2feda4c" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 1e200b1da61d4d04a0cd89ae2f07b78169f8acb96341f5e51d73443ff47953fe [INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap. [INFO] running `Command { std: "docker" "start" "-a" "1e200b1da61d4d04a0cd89ae2f07b78169f8acb96341f5e51d73443ff47953fe", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "1e200b1da61d4d04a0cd89ae2f07b78169f8acb96341f5e51d73443ff47953fe", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "1e200b1da61d4d04a0cd89ae2f07b78169f8acb96341f5e51d73443ff47953fe", kill_on_drop: false }` [INFO] [stdout] 1e200b1da61d4d04a0cd89ae2f07b78169f8acb96341f5e51d73443ff47953fe [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "rustops/crates-build-env@sha256:c8ac004eab7d63a0ad09a2dde3d3353ba464f767bee4de425dc8f74c46a1905e" "/opt/rustwide/cargo-home/bin/cargo" "+9b49d8c6c904f63eb486fe51b14bbe0aa2feda4c" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap. [INFO] [stdout] 64b0423246b374d941d929f90eee2f8fd7c4e33c60972ddf50dcab8a487c2b7e [INFO] running `Command { std: "docker" "start" "-a" "64b0423246b374d941d929f90eee2f8fd7c4e33c60972ddf50dcab8a487c2b7e", kill_on_drop: false }` [INFO] [stderr] Compiling syn v1.0.54 [INFO] [stderr] Compiling serde_json v1.0.60 [INFO] [stderr] Compiling twitch_api2 v0.5.0-alpha.2 [INFO] [stderr] Compiling serde_derive v1.0.118 [INFO] [stderr] Compiling thiserror-impl v1.0.22 [INFO] [stderr] Compiling displaydoc v0.1.7 [INFO] [stderr] Compiling serde_repr v0.1.6 [INFO] [stderr] Checking thiserror v1.0.22 [INFO] [stderr] Checking serde v1.0.118 [INFO] [stderr] thread 'rustc' panicked at 'expected Item', compiler/rustc_expand/src/base.rs:147:18 [INFO] [stderr] stack backtrace: [INFO] [stderr] 0: 0x7f980e7eee30 - std::backtrace_rs::backtrace::libunwind::trace::h746c3e9529d524bc [INFO] [stderr] at /rustc/9b49d8c6c904f63eb486fe51b14bbe0aa2feda4c/library/std/src/../../backtrace/src/backtrace/libunwind.rs:90:5 [INFO] [stderr] 1: 0x7f980e7eee30 - std::backtrace_rs::backtrace::trace_unsynchronized::h86340908ff889faa [INFO] [stderr] at /rustc/9b49d8c6c904f63eb486fe51b14bbe0aa2feda4c/library/std/src/../../backtrace/src/backtrace/mod.rs:66:5 [INFO] [stderr] 2: 0x7f980e7eee30 - std::sys_common::backtrace::_print_fmt::h43f85f9b18230404 [INFO] [stderr] at /rustc/9b49d8c6c904f63eb486fe51b14bbe0aa2feda4c/library/std/src/sys_common/backtrace.rs:67:5 [INFO] [stderr] 3: 0x7f980e7eee30 - ::fmt::hc132ae1a5b5aa7cd [INFO] [stderr] at /rustc/9b49d8c6c904f63eb486fe51b14bbe0aa2feda4c/library/std/src/sys_common/backtrace.rs:46:22 [INFO] [stderr] 4: 0x7f980e861bfc - core::fmt::write::hdf023a0036d2a25f [INFO] [stderr] at /rustc/9b49d8c6c904f63eb486fe51b14bbe0aa2feda4c/library/core/src/fmt/mod.rs:1078:17 [INFO] [stderr] 5: 0x7f980e7e09a2 - std::io::Write::write_fmt::h8580846154bcb66a [INFO] [stderr] at /rustc/9b49d8c6c904f63eb486fe51b14bbe0aa2feda4c/library/std/src/io/mod.rs:1519:15 [INFO] [stderr] 6: 0x7f980e7f2a95 - std::sys_common::backtrace::_print::h7ee55fed88d107a3 [INFO] [stderr] at /rustc/9b49d8c6c904f63eb486fe51b14bbe0aa2feda4c/library/std/src/sys_common/backtrace.rs:49:5 [INFO] [stderr] 7: 0x7f980e7f2a95 - std::sys_common::backtrace::print::h54a7d3e52a524177 [INFO] [stderr] at /rustc/9b49d8c6c904f63eb486fe51b14bbe0aa2feda4c/library/std/src/sys_common/backtrace.rs:36:9 [INFO] [stderr] 8: 0x7f980e7f2a95 - std::panicking::default_hook::{{closure}}::h60921e857bf55a40 [INFO] [stderr] at /rustc/9b49d8c6c904f63eb486fe51b14bbe0aa2feda4c/library/std/src/panicking.rs:208:50 [INFO] [stderr] 9: 0x7f980e7f25ea - std::panicking::default_hook::hf0f9afb1017317fc [INFO] [stderr] at /rustc/9b49d8c6c904f63eb486fe51b14bbe0aa2feda4c/library/std/src/panicking.rs:225:9 [INFO] [stderr] 10: 0x7f980f082e88 - rustc_driver::report_ice::ha25ae86a5858acc3 [INFO] [stderr] 11: 0x7f9800a12f56 - as core::ops::function::Fn>::call::h42ec183287f15131 [INFO] [stderr] at /rustc/9b49d8c6c904f63eb486fe51b14bbe0aa2feda4c/library/alloc/src/boxed.rs:1332:9 [INFO] [stderr] 12: 0x7f9800a16e3b - proc_macro::bridge::client::::enter::{{closure}}::{{closure}}::h463ef15d593167d9 [INFO] [stderr] at /rustc/9b49d8c6c904f63eb486fe51b14bbe0aa2feda4c/library/proc_macro/src/bridge/client.rs:320:21 [INFO] [stderr] 13: 0x7f980e7f3396 - std::panicking::rust_panic_with_hook::h8d66bf42b407aaea [INFO] [stderr] at /rustc/9b49d8c6c904f63eb486fe51b14bbe0aa2feda4c/library/std/src/panicking.rs:595:17 [INFO] [stderr] 14: 0x7f98110c6344 - std::panicking::begin_panic::{{closure}}::h8bff60b0f219be40 [INFO] [stderr] 15: 0x7f98110c62ec - std::sys_common::backtrace::__rust_end_short_backtrace::h01202bfe3ce142a0 [INFO] [stderr] 16: 0x7f98111a9ddc - std::panicking::begin_panic::h35cf7548070bf646 [INFO] [stderr] 17: 0x7f98110b6e71 - rustc_expand::expand::MacroExpander::fully_expand_fragment::hcafcbeedba40799f [INFO] [stderr] 18: 0x7f98110b27fe - rustc_expand::expand::MacroExpander::expand_crate::hd5614e1080b391fe [INFO] [stderr] 19: 0x7f980f2abb22 - rustc_session::utils::::time::h75966864c8cc66ff [INFO] [stderr] 20: 0x7f980f2df402 - rustc_interface::passes::configure_and_expand_inner::hda298414c45f583f [INFO] [stderr] 21: 0x7f980f2a3195 - rustc_interface::passes::configure_and_expand::{{closure}}::h813ffe7bd685ca4d [INFO] [stderr] 22: 0x7f980f2933cf - rustc_data_structures::box_region::PinnedGenerator::new::hdb41118f8a4b2b1c [INFO] [stderr] 23: 0x7f980f2e5c25 - rustc_interface::queries::Queries::expansion::h87720e7c14def5c1 [INFO] [stderr] 24: 0x7f980f0dcfe5 - rustc_interface::queries::::enter::hcfd2504bb4e8d292 [INFO] [stderr] 25: 0x7f980f0ab797 - rustc_span::with_source_map::hdf17fa3a4d8fe35b [INFO] [stderr] 26: 0x7f980f0d98cc - scoped_tls::ScopedKey::set::h5dca480b178bbfab [INFO] [stderr] 27: 0x7f980f0e09e5 - std::sys_common::backtrace::__rust_begin_short_backtrace::ha4cbf96baa7e4912 [INFO] [stderr] 28: 0x7f980f0495ca - core::ops::function::FnOnce::call_once{{vtable.shim}}::he2d69591c700ddc8 [INFO] [stderr] 29: 0x7f980e80265a - as core::ops::function::FnOnce>::call_once::hea1090dbdcecbf5a [INFO] [stderr] at /rustc/9b49d8c6c904f63eb486fe51b14bbe0aa2feda4c/library/alloc/src/boxed.rs:1318:9 [INFO] [stderr] 30: 0x7f980e80265a - as core::ops::function::FnOnce>::call_once::h8d5723d3912bd325 [INFO] [stderr] at /rustc/9b49d8c6c904f63eb486fe51b14bbe0aa2feda4c/library/alloc/src/boxed.rs:1318:9 [INFO] [stderr] 31: 0x7f980e80265a - std::sys::unix::thread::Thread::new::thread_start::hc17a425ca2995724 [INFO] [stderr] at /rustc/9b49d8c6c904f63eb486fe51b14bbe0aa2feda4c/library/std/src/sys/unix/thread.rs:71:17 [INFO] [stderr] 32: 0x7f980e71a609 - start_thread [INFO] [stderr] 33: 0x7f980e62e293 - clone [INFO] [stderr] 34: 0x0 - [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/issues/new?labels=C-bug%2C+I-ICE%2C+T-compiler&template=ice.md [INFO] [stderr] [INFO] [stderr] note: rustc 1.50.0-nightly (9b49d8c6c 2020-11-27) running on x86_64-unknown-linux-gnu [INFO] [stderr] [INFO] [stderr] note: compiler flags: -C embed-bitcode=no -C debuginfo=2 --crate-type lib [INFO] [stderr] [INFO] [stderr] note: some of the compiler flags provided by cargo are hidden [INFO] [stderr] [INFO] [stderr] query stack during panic: [INFO] [stderr] end of query stack [INFO] [stderr] error: could not compile `twitch_api2` [INFO] [stderr] [INFO] [stderr] To learn more, run the command again with --verbose. [INFO] running `Command { std: "docker" "inspect" "64b0423246b374d941d929f90eee2f8fd7c4e33c60972ddf50dcab8a487c2b7e", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "64b0423246b374d941d929f90eee2f8fd7c4e33c60972ddf50dcab8a487c2b7e", kill_on_drop: false }` [INFO] [stdout] 64b0423246b374d941d929f90eee2f8fd7c4e33c60972ddf50dcab8a487c2b7e