[INFO] cloning repository https://github.com/jgallagher-cs/rustc-ice [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/jgallagher-cs/rustc-ice" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjgallagher-cs%2Frustc-ice", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjgallagher-cs%2Frustc-ice'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] bfe4fea08de6610fe4c65657db5ee3bf2a456a55 [INFO] testing jgallagher-cs/rustc-ice against master#8534be72fc3b9c5f2f2dc4e4ee7b651a008e9a3e for pr-74409 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjgallagher-cs%2Frustc-ice" "/workspace/builds/worker-4/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-4/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/jgallagher-cs/rustc-ice on toolchain 8534be72fc3b9c5f2f2dc4e4ee7b651a008e9a3e [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+8534be72fc3b9c5f2f2dc4e4ee7b651a008e9a3e" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] started tweaking git repo https://github.com/jgallagher-cs/rustc-ice [INFO] finished tweaking git repo https://github.com/jgallagher-cs/rustc-ice [INFO] tweaked toml for git repo https://github.com/jgallagher-cs/rustc-ice written to /workspace/builds/worker-4/source/Cargo.toml [INFO] crate git repo https://github.com/jgallagher-cs/rustc-ice already has a lockfile, it will not be regenerated [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+8534be72fc3b9c5f2f2dc4e4ee7b651a008e9a3e" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--network" "none" "rustops/crates-build-env@sha256:38e1b949b06cde1964af550a6e548bd9b2b2ea170003ae122f8fc0886596cc07" "/opt/rustwide/cargo-home/bin/cargo" "+8534be72fc3b9c5f2f2dc4e4ee7b651a008e9a3e" "metadata" "--no-deps" "--format-version=1", 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] 07f503ea2b1a4000c65da00f6e022c288ebf7d5051252a12fa2f2f15687d47d9 [INFO] running `Command { std: "docker" "start" "-a" "07f503ea2b1a4000c65da00f6e022c288ebf7d5051252a12fa2f2f15687d47d9", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "07f503ea2b1a4000c65da00f6e022c288ebf7d5051252a12fa2f2f15687d47d9", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "07f503ea2b1a4000c65da00f6e022c288ebf7d5051252a12fa2f2f15687d47d9", kill_on_drop: false }` [INFO] [stdout] 07f503ea2b1a4000c65da00f6e022c288ebf7d5051252a12fa2f2f15687d47d9 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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@sha256:38e1b949b06cde1964af550a6e548bd9b2b2ea170003ae122f8fc0886596cc07" "/opt/rustwide/cargo-home/bin/cargo" "+8534be72fc3b9c5f2f2dc4e4ee7b651a008e9a3e" "build" "--frozen" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] b14634c4a89eaae13dc77cfea5b42d8db398277e82ffaf11842224a4cac8cc9a [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" "b14634c4a89eaae13dc77cfea5b42d8db398277e82ffaf11842224a4cac8cc9a", kill_on_drop: false }` [INFO] [stderr] Compiling rustc-ice v0.1.0 (/opt/rustwide/workdir) [INFO] [stderr] thread 'rustc' panicked at 'called `Option::unwrap()` on a `None` value', src/librustc_codegen_llvm/back/archive.rs:274:67 [INFO] [stderr] stack backtrace: [INFO] [stderr] 0: 0x7f8f8b0f5915 - backtrace::backtrace::libunwind::trace::hea89dfbbfe67f40d [INFO] [stderr] at /cargo/registry/src/github.com-1ecc6299db9ec823/backtrace-0.3.46/src/backtrace/libunwind.rs:86 [INFO] [stderr] 1: 0x7f8f8b0f5915 - backtrace::backtrace::trace_unsynchronized::h0513dd713d7644d4 [INFO] [stderr] at /cargo/registry/src/github.com-1ecc6299db9ec823/backtrace-0.3.46/src/backtrace/mod.rs:66 [INFO] [stderr] 2: 0x7f8f8b0f5915 - std::sys_common::backtrace::_print_fmt::h040abae64e4a24a9 [INFO] [stderr] at src/libstd/sys_common/backtrace.rs:78 [INFO] [stderr] 3: 0x7f8f8b0f5915 - ::fmt::hb4bdb37c3c335733 [INFO] [stderr] at src/libstd/sys_common/backtrace.rs:59 [INFO] [stderr] 4: 0x7f8f8b1323ac - core::fmt::write::h540ac4a6a1232abc [INFO] [stderr] at src/libcore/fmt/mod.rs:1076 [INFO] [stderr] 5: 0x7f8f8b0e7692 - std::io::Write::write_fmt::h5ffa1b5a7703af47 [INFO] [stderr] at src/libstd/io/mod.rs:1539 [INFO] [stderr] 6: 0x7f8f8b0fa7b0 - std::sys_common::backtrace::_print::hb55cc635eaf1882e [INFO] [stderr] at src/libstd/sys_common/backtrace.rs:62 [INFO] [stderr] 7: 0x7f8f8b0fa7b0 - std::sys_common::backtrace::print::h2b2218fa55714084 [INFO] [stderr] at src/libstd/sys_common/backtrace.rs:49 [INFO] [stderr] 8: 0x7f8f8b0fa7b0 - std::panicking::default_hook::{{closure}}::h578517c025765cf3 [INFO] [stderr] at src/libstd/panicking.rs:198 [INFO] [stderr] 9: 0x7f8f8b0fa4fc - std::panicking::default_hook::h4cafc94c2fc640fb [INFO] [stderr] at src/libstd/panicking.rs:217 [INFO] [stderr] 10: 0x7f8f8b86b289 - rustc_driver::report_ice::h43de776c69f6f711 [INFO] [stderr] 11: 0x7f8f8b0faf28 - std::panicking::rust_panic_with_hook::h3eeb5001beeca5c3 [INFO] [stderr] at src/libstd/panicking.rs:530 [INFO] [stderr] 12: 0x7f8f8b0faafb - rust_begin_unwind [INFO] [stderr] at src/libstd/panicking.rs:437 [INFO] [stderr] 13: 0x7f8f8b12ef51 - core::panicking::panic_fmt::h78830ea6a34e7206 [INFO] [stderr] at src/libcore/panicking.rs:85 [INFO] [stderr] 14: 0x7f8f8b12ee9d - core::panicking::panic::h68e56c2eeba99c8c [INFO] [stderr] at src/libcore/panicking.rs:50 [INFO] [stderr] 15: 0x7f8f8bbcf262 - ::build::h80791495067283ff [INFO] [stderr] 16: 0x7f8f8bbfd417 - rustc_codegen_ssa::back::link::link_binary::hde055413ac19ee0c [INFO] [stderr] 17: 0x7f8f8bd25724 - rustc_session::utils::::time::hc3d2cd79433fcc1e [INFO] [stderr] 18: 0x7f8f8bcf9ce2 - ::link::h63419d2376463bde [INFO] [stderr] 19: 0x7f8f8ba217bb - rustc_interface::queries::Linker::link::h4d84f90c7661cdc3 [INFO] [stderr] 20: 0x7f8f8b8c4be6 - rustc_span::with_source_map::hde950d9c30fd0b8d [INFO] [stderr] 21: 0x7f8f8b826596 - rustc_interface::interface::create_compiler_and_run::h367463a76987ed64 [INFO] [stderr] 22: 0x7f8f8b85111d - scoped_tls::ScopedKey::set::hf06b62ab4457b196 [INFO] [stderr] 23: 0x7f8f8b877142 - std::sys_common::backtrace::__rust_begin_short_backtrace::hef5856eeba4b0c65 [INFO] [stderr] 24: 0x7f8f8b833eee - core::ops::function::FnOnce::call_once{{vtable.shim}}::h9cdba4c6ffcf3f25 [INFO] [stderr] 25: 0x7f8f8b109cca - as core::ops::function::FnOnce>::call_once::hc0e15d78a519721e [INFO] [stderr] at /rustc/8534be72fc3b9c5f2f2dc4e4ee7b651a008e9a3e/src/liballoc/boxed.rs:1081 [INFO] [stderr] 26: 0x7f8f8b109cca - as core::ops::function::FnOnce>::call_once::h211da8fffb09f192 [INFO] [stderr] at /rustc/8534be72fc3b9c5f2f2dc4e4ee7b651a008e9a3e/src/liballoc/boxed.rs:1081 [INFO] [stderr] 27: 0x7f8f8b109cca - std::sys::unix::thread::Thread::new::thread_start::h29594ddebf23e421 [INFO] [stderr] at src/libstd/sys/unix/thread.rs:87 [INFO] [stderr] 28: 0x7f8f8b04a609 - start_thread [INFO] [stderr] 29: 0x7f8f8af5e103 - __clone [INFO] [stderr] 30: 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 1.46.0-nightly (8534be72f 2020-07-17) 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 `rustc-ice`. [INFO] [stderr] [INFO] [stderr] To learn more, run the command again with --verbose. [INFO] running `Command { std: "docker" "inspect" "b14634c4a89eaae13dc77cfea5b42d8db398277e82ffaf11842224a4cac8cc9a", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "b14634c4a89eaae13dc77cfea5b42d8db398277e82ffaf11842224a4cac8cc9a", kill_on_drop: false }` [INFO] [stdout] b14634c4a89eaae13dc77cfea5b42d8db398277e82ffaf11842224a4cac8cc9a