[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 beta-2021-01-01 for beta-1.50-1 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjgallagher-cs%2Frustc-ice" "/workspace/builds/worker-10/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-10/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/jgallagher-cs/rustc-ice on toolchain beta-2021-01-01 [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-01-01" "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-10/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" "+beta-2021-01-01" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/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:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-01-01" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 0cd79d8ee9ebd3fcb7cb6f8c7820ff8b0a6022d1b7cac8f474b7bf36d438ffc5 [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" "0cd79d8ee9ebd3fcb7cb6f8c7820ff8b0a6022d1b7cac8f474b7bf36d438ffc5", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "0cd79d8ee9ebd3fcb7cb6f8c7820ff8b0a6022d1b7cac8f474b7bf36d438ffc5", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "0cd79d8ee9ebd3fcb7cb6f8c7820ff8b0a6022d1b7cac8f474b7bf36d438ffc5", kill_on_drop: false }` [INFO] [stdout] 0cd79d8ee9ebd3fcb7cb6f8c7820ff8b0a6022d1b7cac8f474b7bf36d438ffc5 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/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=warn" "-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:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-01-01" "build" "--frozen" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 8d40bf7e7f74e683d8fbd1abffeb9304d710e0e6bca3b21523d9b5f5d831214c [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" "8d40bf7e7f74e683d8fbd1abffeb9304d710e0e6bca3b21523d9b5f5d831214c", 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', compiler/rustc_codegen_llvm/src/back/archive.rs:274:67 [INFO] [stderr] stack backtrace: [INFO] [stderr] 0: 0x7f62dd13f877 - std::backtrace_rs::backtrace::libunwind::trace::hcd6e187547b8deec [INFO] [stderr] at /rustc/25b3db3aa752d9d4633c983c9d4bf5e48f9baff1/library/std/src/../../backtrace/src/backtrace/libunwind.rs:90:5 [INFO] [stderr] 1: 0x7f62dd13f877 - std::backtrace_rs::backtrace::trace_unsynchronized::hde10036eb783fbc7 [INFO] [stderr] at /rustc/25b3db3aa752d9d4633c983c9d4bf5e48f9baff1/library/std/src/../../backtrace/src/backtrace/mod.rs:66:5 [INFO] [stderr] 2: 0x7f62dd13f877 - std::sys_common::backtrace::_print_fmt::h63987b8f86dfc82a [INFO] [stderr] at /rustc/25b3db3aa752d9d4633c983c9d4bf5e48f9baff1/library/std/src/sys_common/backtrace.rs:67:5 [INFO] [stderr] 3: 0x7f62dd13f877 - ::fmt::hc33f3ac4cc9c4196 [INFO] [stderr] at /rustc/25b3db3aa752d9d4633c983c9d4bf5e48f9baff1/library/std/src/sys_common/backtrace.rs:46:22 [INFO] [stderr] 4: 0x7f62dd1b0cfc - core::fmt::write::hfdcdeb08fb2b3afa [INFO] [stderr] at /rustc/25b3db3aa752d9d4633c983c9d4bf5e48f9baff1/library/core/src/fmt/mod.rs:1078:17 [INFO] [stderr] 5: 0x7f62dd131ab2 - std::io::Write::write_fmt::h83a843778fa2a815 [INFO] [stderr] at /rustc/25b3db3aa752d9d4633c983c9d4bf5e48f9baff1/library/std/src/io/mod.rs:1519:15 [INFO] [stderr] 6: 0x7f62dd143565 - std::sys_common::backtrace::_print::hf179508b01f66878 [INFO] [stderr] at /rustc/25b3db3aa752d9d4633c983c9d4bf5e48f9baff1/library/std/src/sys_common/backtrace.rs:49:5 [INFO] [stderr] 7: 0x7f62dd143565 - std::sys_common::backtrace::print::ha97d11adb39266a6 [INFO] [stderr] at /rustc/25b3db3aa752d9d4633c983c9d4bf5e48f9baff1/library/std/src/sys_common/backtrace.rs:36:9 [INFO] [stderr] 8: 0x7f62dd143565 - std::panicking::default_hook::{{closure}}::h8da9985a98bd1582 [INFO] [stderr] at /rustc/25b3db3aa752d9d4633c983c9d4bf5e48f9baff1/library/std/src/panicking.rs:208:50 [INFO] [stderr] 9: 0x7f62dd1430ba - std::panicking::default_hook::hbc0ee792993c2ef2 [INFO] [stderr] at /rustc/25b3db3aa752d9d4633c983c9d4bf5e48f9baff1/library/std/src/panicking.rs:225:9 [INFO] [stderr] 10: 0x7f62dd9a8b3b - rustc_driver::report_ice::haf4c9c46517bc880 [INFO] [stderr] 11: 0x7f62dd143e66 - std::panicking::rust_panic_with_hook::h9fb9cda33a10f084 [INFO] [stderr] at /rustc/25b3db3aa752d9d4633c983c9d4bf5e48f9baff1/library/std/src/panicking.rs:595:17 [INFO] [stderr] 12: 0x7f62dd143957 - std::panicking::begin_panic_handler::{{closure}}::hf3e83396e085962e [INFO] [stderr] at /rustc/25b3db3aa752d9d4633c983c9d4bf5e48f9baff1/library/std/src/panicking.rs:495:13 [INFO] [stderr] 13: 0x7f62dd13fd3c - std::sys_common::backtrace::__rust_end_short_backtrace::hac151ac4c1e3252d [INFO] [stderr] at /rustc/25b3db3aa752d9d4633c983c9d4bf5e48f9baff1/library/std/src/sys_common/backtrace.rs:141:18 [INFO] [stderr] 14: 0x7f62dd1438e9 - rust_begin_unwind [INFO] [stderr] at /rustc/25b3db3aa752d9d4633c983c9d4bf5e48f9baff1/library/std/src/panicking.rs:493:5 [INFO] [stderr] 15: 0x7f62dd1ad111 - core::panicking::panic_fmt::hf6d8a92b065b8f97 [INFO] [stderr] at /rustc/25b3db3aa752d9d4633c983c9d4bf5e48f9baff1/library/core/src/panicking.rs:92:14 [INFO] [stderr] 16: 0x7f62dd1ad05d - core::panicking::panic::h95b17729da7179c5 [INFO] [stderr] at /rustc/25b3db3aa752d9d4633c983c9d4bf5e48f9baff1/library/core/src/panicking.rs:50:5 [INFO] [stderr] 17: 0x7f62df39ae3f - ::build::h93d8380697a0fd59 [INFO] [stderr] 18: 0x7f62dff74859 - rustc_session::utils::::time::h3536f0cb68ff25d6 [INFO] [stderr] 19: 0x7f62dff6dedc - ::link::hfbd4d678f39eea35 [INFO] [stderr] 20: 0x7f62dfecafd6 - rustc_interface::queries::Linker::link::h9c7415e09520d7ca [INFO] [stderr] 21: 0x7f62dfe4d442 - rustc_span::with_source_map::h4ebecaf586788cc4 [INFO] [stderr] 22: 0x7f62dfe58c8a - rustc_interface::interface::create_compiler_and_run::h721d23f55b14a45d [INFO] [stderr] 23: 0x7f62dfe4e028 - std::sys_common::backtrace::__rust_begin_short_backtrace::h5231acefb97021a0 [INFO] [stderr] 24: 0x7f62dfe306aa - core::ops::function::FnOnce::call_once{{vtable.shim}}::h97103f0a8614a8c1 [INFO] [stderr] 25: 0x7f62dd15419a - as core::ops::function::FnOnce>::call_once::hdbb9ff71143eaad6 [INFO] [stderr] at /rustc/25b3db3aa752d9d4633c983c9d4bf5e48f9baff1/library/alloc/src/boxed.rs:1328:9 [INFO] [stderr] 26: 0x7f62dd15419a - as core::ops::function::FnOnce>::call_once::h9dbde95cefb8368c [INFO] [stderr] at /rustc/25b3db3aa752d9d4633c983c9d4bf5e48f9baff1/library/alloc/src/boxed.rs:1328:9 [INFO] [stderr] 27: 0x7f62dd15419a - std::sys::unix::thread::Thread::new::thread_start::hc76032c38affd972 [INFO] [stderr] at /rustc/25b3db3aa752d9d4633c983c9d4bf5e48f9baff1/library/std/src/sys/unix/thread.rs:71:17 [INFO] [stderr] 28: 0x7f62dd064609 - start_thread [INFO] [stderr] 29: 0x7f62dcf78293 - 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 1.50.0-beta.2 (25b3db3aa 2020-12-31) 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" "8d40bf7e7f74e683d8fbd1abffeb9304d710e0e6bca3b21523d9b5f5d831214c", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "8d40bf7e7f74e683d8fbd1abffeb9304d710e0e6bca3b21523d9b5f5d831214c", kill_on_drop: false }` [INFO] [stdout] 8d40bf7e7f74e683d8fbd1abffeb9304d710e0e6bca3b21523d9b5f5d831214c