[INFO] cloning repository https://github.com/rahularya50/mylang-rs [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/rahularya50/mylang-rs" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Frahularya50%2Fmylang-rs", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Frahularya50%2Fmylang-rs'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] 21d5576df8205f3300d133745f603854b38b56ed [INFO] checking rahularya50/mylang-rs against try#c3491e21996dc67a8e37d9e5e74ed156563e9854 for pr-101345 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Frahularya50%2Fmylang-rs" "/workspace/builds/worker-7/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-7/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/rahularya50/mylang-rs on toolchain c3491e21996dc67a8e37d9e5e74ed156563e9854 [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+c3491e21996dc67a8e37d9e5e74ed156563e9854" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] removed /workspace/builds/worker-7/source/rust-toolchain [INFO] started tweaking git repo https://github.com/rahularya50/mylang-rs [INFO] finished tweaking git repo https://github.com/rahularya50/mylang-rs [INFO] tweaked toml for git repo https://github.com/rahularya50/mylang-rs written to /workspace/builds/worker-7/source/Cargo.toml [INFO] crate git repo https://github.com/rahularya50/mylang-rs already has a lockfile, it will not be regenerated [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+c3491e21996dc67a8e37d9e5e74ed156563e9854" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:824c28ce115f6b999260af6986f3384c158e782489540e41c0b698ca1d9fd927" "/opt/rustwide/cargo-home/bin/cargo" "+c3491e21996dc67a8e37d9e5e74ed156563e9854" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 93bdff8acdaae1cf727cad7e3a5843fa57704d9d03721e580f27e34f6aac89d3 [INFO] running `Command { std: "docker" "start" "-a" "93bdff8acdaae1cf727cad7e3a5843fa57704d9d03721e580f27e34f6aac89d3", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "93bdff8acdaae1cf727cad7e3a5843fa57704d9d03721e580f27e34f6aac89d3", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "93bdff8acdaae1cf727cad7e3a5843fa57704d9d03721e580f27e34f6aac89d3", kill_on_drop: false }` [INFO] [stdout] 93bdff8acdaae1cf727cad7e3a5843fa57704d9d03721e580f27e34f6aac89d3 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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" "RUSTDOCFLAGS=--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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:824c28ce115f6b999260af6986f3384c158e782489540e41c0b698ca1d9fd927" "/opt/rustwide/cargo-home/bin/cargo" "+c3491e21996dc67a8e37d9e5e74ed156563e9854" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 830c8b7f51f57d8b5ddc2d53e7eb019f929bf4f1b517a89de28d5f8f7647d728 [INFO] running `Command { std: "docker" "start" "-a" "830c8b7f51f57d8b5ddc2d53e7eb019f929bf4f1b517a89de28d5f8f7647d728", kill_on_drop: false }` [INFO] [stderr] Compiling version_check v0.9.4 [INFO] [stderr] Compiling proc-macro2 v1.0.36 [INFO] [stderr] Compiling unicode-xid v0.2.2 [INFO] [stderr] Compiling syn v1.0.84 [INFO] [stderr] Compiling memchr v2.4.1 [INFO] [stderr] Compiling autocfg v1.0.1 [INFO] [stderr] Compiling libc v0.2.112 [INFO] [stderr] Compiling unicode-segmentation v1.8.0 [INFO] [stderr] Compiling anyhow v1.0.52 [INFO] [stderr] Checking hashbrown v0.11.2 [INFO] [stderr] Checking bitflags v1.3.2 [INFO] [stderr] Checking lazy_static v1.4.0 [INFO] [stderr] Checking either v1.6.1 [INFO] [stderr] Checking textwrap v0.14.2 [INFO] [stderr] Checking strsim v0.10.0 [INFO] [stderr] Checking termcolor v1.1.2 [INFO] [stderr] Checking itertools v0.10.3 [INFO] [stderr] Compiling heck v0.3.3 [INFO] [stderr] Compiling proc-macro-error-attr v1.0.4 [INFO] [stderr] Compiling proc-macro-error v1.0.4 [INFO] [stderr] Compiling indexmap v1.7.0 [INFO] [stderr] Checking os_str_bytes v6.0.0 [INFO] [stderr] Compiling quote v1.0.14 [INFO] [stderr] Checking atty v0.2.14 [INFO] [stderr] Compiling clap_derive v3.0.0 [INFO] [stderr] Checking clap v3.0.0 [INFO] [stderr] Checking mylang v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: unused import: `Ref` [INFO] [stdout] --> src/backend/microcode/mod.rs:1:17 [INFO] [stdout] | [INFO] [stdout] 1 | use std::cell::{Ref, RefCell}; [INFO] [stdout] | ^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `std::mem::Discriminant` [INFO] [stdout] --> src/backend/microcode/instructions.rs:2:5 [INFO] [stdout] | [INFO] [stdout] 2 | use std::mem::Discriminant; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `CfgConfig` [INFO] [stdout] --> src/backend/microcode/instructions.rs:7:5 [INFO] [stdout] | [INFO] [stdout] 7 | CfgConfig, Function, Instruction, SSABlock, SSAInstruction, SSAInstructionRHS, [INFO] [stdout] | ^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `Instruction` [INFO] [stdout] --> src/ir/ssa_forms.rs:5:95 [INFO] [stdout] | [INFO] [stdout] 5 | use super::{FullBlock, RegisterLValue, VirtualRegister, VirtualRegisterLValue, WithRegisters, Instruction}; [INFO] [stdout] | ^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `Ref` [INFO] [stdout] --> src/backend/microcode/mod.rs:1:17 [INFO] [stdout] | [INFO] [stdout] 1 | use std::cell::{Ref, RefCell}; [INFO] [stdout] | ^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: internal compiler error: compiler/rustc_middle/src/ty/subst.rs:619:9: expected type for `Conf/#0` (Conf/0) but found Lifetime(ReFree(DefId(0:938 ~ mylang[1497]::ir::structs::{impl#5}::preds), BrNamed(DefId(0:1856 ~ mylang[1497]::ir::structs::{impl#5}::preds::'_), '_))) when substituting, substs=[ReFree(DefId(0:938 ~ mylang[1497]::ir::structs::{impl#5}::preds), BrNamed(DefId(0:1856 ~ mylang[1497]::ir::structs::{impl#5}::preds::'_), '_)), Conf] [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] thread 'rustc' panicked at 'Box', /rustc/c3491e21996dc67a8e37d9e5e74ed156563e9854/compiler/rustc_errors/src/lib.rs:1465:9 [INFO] [stderr] stack backtrace: [INFO] [stderr] 0: 0x7efd14d56340 - std::backtrace_rs::backtrace::libunwind::trace::h6176bf60b78d74d6 [INFO] [stderr] at /rustc/c3491e21996dc67a8e37d9e5e74ed156563e9854/library/std/src/../../backtrace/src/backtrace/mod.rs:66:5 [INFO] [stderr] 1: 0x7efd14d56340 - std::backtrace_rs::backtrace::trace_unsynchronized::h5d22932bd33ba306 [INFO] [stderr] at /rustc/c3491e21996dc67a8e37d9e5e74ed156563e9854/library/std/src/../../backtrace/src/backtrace/mod.rs:66:5 [INFO] [stderr] 2: 0x7efd14d56340 - std::sys_common::backtrace::_print_fmt::h91ed71259c388db3 [INFO] [stderr] at /rustc/c3491e21996dc67a8e37d9e5e74ed156563e9854/library/std/src/sys_common/backtrace.rs:66:5 [INFO] [stderr] 3: 0x7efd14d56340 - ::fmt::hde15bb8cbf7665da [INFO] [stderr] at /rustc/c3491e21996dc67a8e37d9e5e74ed156563e9854/library/std/src/sys_common/backtrace.rs:45:22 [INFO] [stderr] 4: 0x7efd14db10fe - core::fmt::write::h9761a5598d7cc269 [INFO] [stderr] at /rustc/c3491e21996dc67a8e37d9e5e74ed156563e9854/library/core/src/fmt/mod.rs:1202:17 [INFO] [stderr] 5: 0x7efd14d46d15 - std::io::Write::write_fmt::h26becaaa3f318825 [INFO] [stderr] at /rustc/c3491e21996dc67a8e37d9e5e74ed156563e9854/library/std/src/io/mod.rs:1679:15 [INFO] [stderr] 6: 0x7efd14d58fd3 - std::sys_common::backtrace::_print::hc10fefd61e366dd2 [INFO] [stderr] at /rustc/c3491e21996dc67a8e37d9e5e74ed156563e9854/library/std/src/sys_common/backtrace.rs:48:5 [INFO] [stderr] 7: 0x7efd14d58fd3 - std::sys_common::backtrace::print::hd8c846072a354bbf [INFO] [stderr] at /rustc/c3491e21996dc67a8e37d9e5e74ed156563e9854/library/std/src/sys_common/backtrace.rs:35:9 [INFO] [stderr] 8: 0x7efd14d58fd3 - std::panicking::default_hook::{{closure}}::haa135eeb0555cd8c [INFO] [stderr] at /rustc/c3491e21996dc67a8e37d9e5e74ed156563e9854/library/std/src/panicking.rs:295:22 [INFO] [stderr] 9: 0x7efd14d58cbf - std::panicking::default_hook::h962e5f45e4e85804 [INFO] [stderr] at /rustc/c3491e21996dc67a8e37d9e5e74ed156563e9854/library/std/src/panicking.rs:314:9 [INFO] [stderr] 10: 0x7efd175f1244 - rustc_driver[37844947c1c4e730]::DEFAULT_HOOK::{closure#0}::{closure#0} [INFO] [stderr] 11: 0x7efd14d5980d - std::panicking::rust_panic_with_hook::h26097f8ccbe406f2 [INFO] [stderr] at /rustc/c3491e21996dc67a8e37d9e5e74ed156563e9854/library/std/src/panicking.rs:702:17 [INFO] [stderr] 12: 0x7efd185b8051 - std[17c996d5f6362125]::panicking::begin_panic::::{closure#0} [INFO] [stderr] 13: 0x7efd185b7946 - std[17c996d5f6362125]::sys_common::backtrace::__rust_end_short_backtrace::::{closure#0}, !> [INFO] [stderr] 14: 0x7efd185b45f6 - std[17c996d5f6362125]::panicking::begin_panic:: [INFO] [stderr] 15: 0x7efd185b45e6 - std[17c996d5f6362125]::panic::panic_any:: [INFO] [stderr] 16: 0x7efd185b33ad - ::bug::<&alloc[cf695002ebe1f35b]::string::String> [INFO] [stderr] 17: 0x7efd185b2c10 - ::bug::<&alloc[cf695002ebe1f35b]::string::String> [INFO] [stderr] 18: 0x7efd1861bc6d - rustc_middle[7beb62e1eee56aa5]::ty::context::tls::with_context_opt::::{closure#0}, ()>::{closure#0}, ()> [INFO] [stderr] 19: 0x7efd1861d9b6 - rustc_middle[7beb62e1eee56aa5]::util::bug::opt_span_bug_fmt:: [INFO] [stderr] 20: 0x7efd15fc21a3 - rustc_middle[7beb62e1eee56aa5]::util::bug::bug_fmt [INFO] [stderr] 21: 0x7efd1861a94d - ::type_param_expected [INFO] [stderr] 22: 0x7efd15ecb33b - ::try_fold_ty [INFO] [stderr] 23: 0x7efd15ec7a85 - ::try_fold_ty [INFO] [stderr] 24: 0x7efd15ec7a85 - ::try_fold_ty [INFO] [stderr] 25: 0x7efd15ec2f98 - ::fold_ty [INFO] [stderr] 26: 0x7efd170beec3 - ::try_fold_with:: [INFO] [stderr] 27: 0x7efd16af59e1 - ::try_fold_binder:: [INFO] [stderr] 28: 0x7efd16af5419 - ::register_hidden_type [INFO] [stderr] 29: 0x7efd16af4b15 - ::handle_opaque_type::{closure#0} [INFO] [stderr] 30: 0x7efd16af42b9 - ::handle_opaque_type [INFO] [stderr] 31: 0x7efd16af4089 - ::replace_opaque_types_with_inference_vars::{closure#3}, ::replace_opaque_types_with_inference_vars::{closure#1}, ::replace_opaque_types_with_inference_vars::{closure#2}> as rustc_middle[7beb62e1eee56aa5]::ty::fold::FallibleTypeFolder>::try_fold_ty [INFO] [stderr] 32: 0x7efd16ad8b33 - rustc_typeck[1c1b7dedada1227e]::check::check::check_fn [INFO] [stderr] 33: 0x7efd16aca400 - ::enter::<&rustc_middle[7beb62e1eee56aa5]::ty::context::TypeckResults, ::enter::{closure#1}, &rustc_middle[7beb62e1eee56aa5]::ty::context::TypeckResults>::{closure#0}> [INFO] [stderr] 34: 0x7efd16ac8680 - rustc_typeck[1c1b7dedada1227e]::check::typeck [INFO] [stderr] 35: 0x7efd16dca998 - rustc_query_system[50d9efc904e05111]::query::plumbing::try_execute_query::> [INFO] [stderr] 36: 0x7efd174f010a - ::typeck [INFO] [stderr] 37: 0x7efd16bf6c52 - ::typeck_opt_const_arg [INFO] [stderr] 38: 0x7efd16bf5683 - rustc_mir_build[35657bfbf0d13de]::build::mir_built [INFO] [stderr] 39: 0x7efd16b0038a - rustc_query_system[50d9efc904e05111]::query::plumbing::try_execute_query::, &rustc_data_structures[7dd3ac3ff0520fbe]::steal::Steal>> [INFO] [stderr] 40: 0x7efd174ee3d7 - ::mir_built [INFO] [stderr] 41: 0x7efd167f8e8c - rustc_mir_transform[9ef21538bf51cc1e]::check_unsafety::unsafety_check_result [INFO] [stderr] 42: 0x7efd167f88b8 - >::call_once [INFO] [stderr] 43: 0x7efd16b3cac6 - rustc_query_system[50d9efc904e05111]::query::plumbing::try_execute_query::> [INFO] [stderr] 44: 0x7efd174efa50 - ::unsafety_check_result [INFO] [stdout] error: aborting due to previous error; 4 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] 45: 0x7efd174364d0 - rustc_mir_transform[9ef21538bf51cc1e]::mir_const [INFO] [stderr] 46: 0x7efd16b0038a - rustc_query_system[50d9efc904e05111]::query::plumbing::try_execute_query::, &rustc_data_structures[7dd3ac3ff0520fbe]::steal::Steal>> [INFO] [stderr] 47: 0x7efd174ee50e - ::mir_const [INFO] [stderr] 48: 0x7efd1679c553 - rustc_mir_transform[9ef21538bf51cc1e]::mir_promoted [INFO] [stderr] 49: 0x7efd16eb0d43 - rustc_query_system[50d9efc904e05111]::query::plumbing::try_execute_query::, (&rustc_data_structures[7dd3ac3ff0520fbe]::steal::Steal, &rustc_data_structures[7dd3ac3ff0520fbe]::steal::Steal>)>> [INFO] [stderr] 50: 0x7efd174eeab6 - ::mir_promoted [INFO] [stderr] 51: 0x7efd16f930e2 - rustc_borrowck[5ba217849104aca8]::mir_borrowck [INFO] [stderr] 52: 0x7efd16f92c11 - >::call_once [INFO] [stderr] 53: 0x7efd16a5c07d - rustc_query_system[50d9efc904e05111]::query::plumbing::try_execute_query::> [INFO] [stderr] 54: 0x7efd174f0385 - ::mir_borrowck [INFO] [stderr] 55: 0x7efd172582f2 - rustc_typeck[1c1b7dedada1227e]::collect::type_of::type_of [INFO] [stderr] 56: 0x7efd16b05ef4 - rustc_query_system[50d9efc904e05111]::query::plumbing::get_query:: [INFO] [stderr] 57: 0x7efd16f5e6f0 - rustc_typeck[1c1b7dedada1227e]::check::check::check_item_type [INFO] [stderr] 58: 0x7efd16f5ab0e - rustc_typeck[1c1b7dedada1227e]::check::check::check_mod_item_types [INFO] [stderr] 59: 0x7efd165164f0 - rustc_query_system[50d9efc904e05111]::query::plumbing::try_execute_query::> [INFO] [stderr] 60: 0x7efd1702fab5 - rustc_query_system[50d9efc904e05111]::query::plumbing::get_query:: [INFO] [stderr] 61: 0x7efd172cbd5c - ::for_each_module:: [INFO] [stderr] 62: 0x7efd16fd4c45 - rustc_typeck[1c1b7dedada1227e]::check_crate [INFO] [stderr] 63: 0x7efd16fd2a62 - rustc_interface[5b9d04fc58ee7720]::passes::analysis [INFO] [stderr] 64: 0x7efd1737d72f - rustc_query_system[50d9efc904e05111]::query::plumbing::try_execute_query::>> [INFO] [stderr] 65: 0x7efd1737d440 - rustc_query_system[50d9efc904e05111]::query::plumbing::get_query:: [INFO] [stderr] 66: 0x7efd1641a744 - ::enter::> [INFO] [stderr] 67: 0x7efd164172ae - ::enter::, rustc_errors[ffc9f8ad040f737d]::ErrorGuaranteed>> [INFO] [stderr] 68: 0x7efd1641241c - rustc_span[b6ed302232182e4]::with_source_map::, rustc_interface[5b9d04fc58ee7720]::interface::create_compiler_and_run, rustc_driver[37844947c1c4e730]::run_compiler::{closure#1}>::{closure#1}> [INFO] [stderr] 69: 0x7efd16411e12 - rustc_interface[5b9d04fc58ee7720]::interface::create_compiler_and_run::, rustc_driver[37844947c1c4e730]::run_compiler::{closure#1}> [INFO] [stderr] 70: 0x7efd16410a61 - >::set::, rustc_driver[37844947c1c4e730]::run_compiler::{closure#1}>::{closure#0}, core[fae64f17691dff84]::result::Result<(), rustc_errors[ffc9f8ad040f737d]::ErrorGuaranteed>> [INFO] [stderr] 71: 0x7efd1641074f - std[17c996d5f6362125]::sys_common::backtrace::__rust_begin_short_backtrace::, rustc_driver[37844947c1c4e730]::run_compiler::{closure#1}>::{closure#0}, core[fae64f17691dff84]::result::Result<(), rustc_errors[ffc9f8ad040f737d]::ErrorGuaranteed>>::{closure#0}, core[fae64f17691dff84]::result::Result<(), rustc_errors[ffc9f8ad040f737d]::ErrorGuaranteed>> [INFO] [stderr] 72: 0x7efd1740f629 - <::spawn_unchecked_, rustc_driver[37844947c1c4e730]::run_compiler::{closure#1}>::{closure#0}, core[fae64f17691dff84]::result::Result<(), rustc_errors[ffc9f8ad040f737d]::ErrorGuaranteed>>::{closure#0}, core[fae64f17691dff84]::result::Result<(), rustc_errors[ffc9f8ad040f737d]::ErrorGuaranteed>>::{closure#1} as core[fae64f17691dff84]::ops::function::FnOnce<()>>::call_once::{shim:vtable#0} [INFO] [stderr] 73: 0x7efd14d63663 - as core::ops::function::FnOnce>::call_once::hbcba3d5baddb20d1 [INFO] [stderr] at /rustc/c3491e21996dc67a8e37d9e5e74ed156563e9854/library/alloc/src/boxed.rs:1940:9 [INFO] [stderr] 74: 0x7efd14d63663 - as core::ops::function::FnOnce>::call_once::hcb40027853eebed4 [INFO] [stderr] at /rustc/c3491e21996dc67a8e37d9e5e74ed156563e9854/library/alloc/src/boxed.rs:1940:9 [INFO] [stderr] 75: 0x7efd14d63663 - std::sys::unix::thread::Thread::new::thread_start::habdd10d71164d0ca [INFO] [stderr] at /rustc/c3491e21996dc67a8e37d9e5e74ed156563e9854/library/std/src/sys/unix/thread.rs:108:17 [INFO] [stderr] 76: 0x7efd14c13609 - start_thread [INFO] [stderr] 77: 0x7efd14b36133 - clone [INFO] [stderr] 78: 0x0 - [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 1.65.0-nightly (c3491e219 2022-09-03) running on x86_64-unknown-linux-gnu [INFO] [stderr] [INFO] [stderr] note: compiler flags: -C embed-bitcode=no -C debuginfo=2 [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] #0 [typeck] type-checking `ir::structs::::preds` [INFO] [stderr] #1 [mir_built] building MIR for `ir::structs::::preds` [INFO] [stderr] #2 [unsafety_check_result] unsafety-checking `ir::structs::::preds` [INFO] [stderr] #3 [mir_const] processing MIR for `ir::structs::::preds` [INFO] [stderr] #4 [mir_promoted] processing `ir::structs::::preds` [INFO] [stderr] #5 [mir_borrowck] borrow-checking `ir::structs::::preds` [INFO] [stderr] #6 [type_of] computing type of `ir::structs::::preds::{opaque#0}` [INFO] [stderr] #7 [check_mod_item_types] checking item types in module `ir::structs` [INFO] [stderr] #8 [analysis] running analysis passes on this crate [INFO] [stderr] end of query stack [INFO] [stderr] error: could not compile `mylang` due to previous error; 4 warnings emitted [INFO] [stderr] warning: build failed, waiting for other jobs to finish... [INFO] [stdout] warning: unused import: `std::mem::Discriminant` [INFO] [stdout] --> src/backend/microcode/instructions.rs:2:5 [INFO] [stdout] | [INFO] [stdout] 2 | use std::mem::Discriminant; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `CfgConfig` [INFO] [stdout] --> src/backend/microcode/instructions.rs:7:5 [INFO] [stdout] | [INFO] [stdout] 7 | CfgConfig, Function, Instruction, SSABlock, SSAInstruction, SSAInstructionRHS, [INFO] [stdout] | ^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `Instruction` [INFO] [stdout] --> src/ir/ssa_forms.rs:5:95 [INFO] [stdout] | [INFO] [stdout] 5 | use super::{FullBlock, RegisterLValue, VirtualRegister, VirtualRegisterLValue, WithRegisters, Instruction}; [INFO] [stdout] | ^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] thread 'rustc' panicked at 'Box', /rustc/c3491e21996dc67a8e37d9e5e74ed156563e9854/compiler/rustc_errors/src/lib.rs:1465:9 [INFO] [stdout] error: internal compiler error: compiler/rustc_middle/src/ty/subst.rs:619:9: expected type for `Conf/#0` (Conf/0) but found Lifetime(ReFree(DefId(0:938 ~ mylang[5f66]::ir::structs::{impl#5}::preds), BrNamed(DefId(0:1854 ~ mylang[5f66]::ir::structs::{impl#5}::preds::'_), '_))) when substituting, substs=[ReFree(DefId(0:938 ~ mylang[5f66]::ir::structs::{impl#5}::preds), BrNamed(DefId(0:1854 ~ mylang[5f66]::ir::structs::{impl#5}::preds::'_), '_)), Conf] [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] stack backtrace: [INFO] [stderr] 0: 0x7f4ce4fe8340 - std::backtrace_rs::backtrace::libunwind::trace::h6176bf60b78d74d6 [INFO] [stderr] at /rustc/c3491e21996dc67a8e37d9e5e74ed156563e9854/library/std/src/../../backtrace/src/backtrace/mod.rs:66:5 [INFO] [stderr] 1: 0x7f4ce4fe8340 - std::backtrace_rs::backtrace::trace_unsynchronized::h5d22932bd33ba306 [INFO] [stderr] at /rustc/c3491e21996dc67a8e37d9e5e74ed156563e9854/library/std/src/../../backtrace/src/backtrace/mod.rs:66:5 [INFO] [stderr] 2: 0x7f4ce4fe8340 - std::sys_common::backtrace::_print_fmt::h91ed71259c388db3 [INFO] [stderr] at /rustc/c3491e21996dc67a8e37d9e5e74ed156563e9854/library/std/src/sys_common/backtrace.rs:66:5 [INFO] [stderr] 3: 0x7f4ce4fe8340 - ::fmt::hde15bb8cbf7665da [INFO] [stderr] at /rustc/c3491e21996dc67a8e37d9e5e74ed156563e9854/library/std/src/sys_common/backtrace.rs:45:22 [INFO] [stderr] 4: 0x7f4ce50430fe - core::fmt::write::h9761a5598d7cc269 [INFO] [stderr] at /rustc/c3491e21996dc67a8e37d9e5e74ed156563e9854/library/core/src/fmt/mod.rs:1202:17 [INFO] [stderr] 5: 0x7f4ce4fd8d15 - std::io::Write::write_fmt::h26becaaa3f318825 [INFO] [stderr] at /rustc/c3491e21996dc67a8e37d9e5e74ed156563e9854/library/std/src/io/mod.rs:1679:15 [INFO] [stderr] 6: 0x7f4ce4feafd3 - std::sys_common::backtrace::_print::hc10fefd61e366dd2 [INFO] [stderr] at /rustc/c3491e21996dc67a8e37d9e5e74ed156563e9854/library/std/src/sys_common/backtrace.rs:48:5 [INFO] [stderr] 7: 0x7f4ce4feafd3 - std::sys_common::backtrace::print::hd8c846072a354bbf [INFO] [stderr] at /rustc/c3491e21996dc67a8e37d9e5e74ed156563e9854/library/std/src/sys_common/backtrace.rs:35:9 [INFO] [stderr] 8: 0x7f4ce4feafd3 - std::panicking::default_hook::{{closure}}::haa135eeb0555cd8c [INFO] [stderr] at /rustc/c3491e21996dc67a8e37d9e5e74ed156563e9854/library/std/src/panicking.rs:295:22 [INFO] [stderr] 9: 0x7f4ce4feacbf - std::panicking::default_hook::h962e5f45e4e85804 [INFO] [stderr] at /rustc/c3491e21996dc67a8e37d9e5e74ed156563e9854/library/std/src/panicking.rs:314:9 [INFO] [stderr] 10: 0x7f4ce7883244 - rustc_driver[37844947c1c4e730]::DEFAULT_HOOK::{closure#0}::{closure#0} [INFO] [stderr] 11: 0x7f4ce4feb80d - std::panicking::rust_panic_with_hook::h26097f8ccbe406f2 [INFO] [stderr] at /rustc/c3491e21996dc67a8e37d9e5e74ed156563e9854/library/std/src/panicking.rs:702:17 [INFO] [stderr] 12: 0x7f4ce884a051 - std[17c996d5f6362125]::panicking::begin_panic::::{closure#0} [INFO] [stderr] 13: 0x7f4ce8849946 - std[17c996d5f6362125]::sys_common::backtrace::__rust_end_short_backtrace::::{closure#0}, !> [INFO] [stderr] 14: 0x7f4ce88465f6 - std[17c996d5f6362125]::panicking::begin_panic:: [INFO] [stderr] 15: 0x7f4ce88465e6 - std[17c996d5f6362125]::panic::panic_any:: [INFO] [stderr] 16: 0x7f4ce88453ad - ::bug::<&alloc[cf695002ebe1f35b]::string::String> [INFO] [stderr] 17: 0x7f4ce8844c10 - ::bug::<&alloc[cf695002ebe1f35b]::string::String> [INFO] [stderr] 18: 0x7f4ce88adc6d - rustc_middle[7beb62e1eee56aa5]::ty::context::tls::with_context_opt::::{closure#0}, ()>::{closure#0}, ()> [INFO] [stderr] 19: 0x7f4ce88af9b6 - rustc_middle[7beb62e1eee56aa5]::util::bug::opt_span_bug_fmt:: [INFO] [stderr] 20: 0x7f4ce62541a3 - rustc_middle[7beb62e1eee56aa5]::util::bug::bug_fmt [INFO] [stderr] 21: 0x7f4ce88ac94d - ::type_param_expected [INFO] [stderr] 22: 0x7f4ce615d33b - ::try_fold_ty [INFO] [stderr] 23: 0x7f4ce6159a85 - ::try_fold_ty [INFO] [stderr] 24: 0x7f4ce6159a85 - ::try_fold_ty [INFO] [stderr] 25: 0x7f4ce6154f98 - ::fold_ty [INFO] [stderr] 26: 0x7f4ce7350ec3 - ::try_fold_with:: [INFO] [stderr] 27: 0x7f4ce6d879e1 - ::try_fold_binder:: [INFO] [stderr] 28: 0x7f4ce6d87419 - ::register_hidden_type [INFO] [stderr] 29: 0x7f4ce6d86b15 - ::handle_opaque_type::{closure#0} [INFO] [stderr] 30: 0x7f4ce6d862b9 - ::handle_opaque_type [INFO] [stderr] 31: 0x7f4ce6d86089 - ::replace_opaque_types_with_inference_vars::{closure#3}, ::replace_opaque_types_with_inference_vars::{closure#1}, ::replace_opaque_types_with_inference_vars::{closure#2}> as rustc_middle[7beb62e1eee56aa5]::ty::fold::FallibleTypeFolder>::try_fold_ty [INFO] [stderr] 32: 0x7f4ce6d6ab33 - rustc_typeck[1c1b7dedada1227e]::check::check::check_fn [INFO] [stderr] 33: 0x7f4ce6d5c400 - ::enter::<&rustc_middle[7beb62e1eee56aa5]::ty::context::TypeckResults, ::enter::{closure#1}, &rustc_middle[7beb62e1eee56aa5]::ty::context::TypeckResults>::{closure#0}> [INFO] [stderr] 34: 0x7f4ce6d5a680 - rustc_typeck[1c1b7dedada1227e]::check::typeck [INFO] [stderr] 35: 0x7f4ce705c998 - rustc_query_system[50d9efc904e05111]::query::plumbing::try_execute_query::> [INFO] [stderr] 36: 0x7f4ce778210a - ::typeck [INFO] [stderr] 37: 0x7f4ce6e88c52 - ::typeck_opt_const_arg [INFO] [stderr] 38: 0x7f4ce6e87683 - rustc_mir_build[35657bfbf0d13de]::build::mir_built [INFO] [stderr] 39: 0x7f4ce6d9238a - rustc_query_system[50d9efc904e05111]::query::plumbing::try_execute_query::, &rustc_data_structures[7dd3ac3ff0520fbe]::steal::Steal>> [INFO] [stderr] 40: 0x7f4ce77803d7 - ::mir_built [INFO] [stderr] 41: 0x7f4ce6a8ae8c - rustc_mir_transform[9ef21538bf51cc1e]::check_unsafety::unsafety_check_result [INFO] [stderr] 42: 0x7f4ce6a8a8b8 - >::call_once [INFO] [stderr] 43: 0x7f4ce6dceac6 - rustc_query_system[50d9efc904e05111]::query::plumbing::try_execute_query::> [INFO] [stderr] 44: 0x7f4ce7781a50 - ::unsafety_check_result [INFO] [stderr] 45: 0x7f4ce76c84d0 - rustc_mir_transform[9ef21538bf51cc1e]::mir_const [INFO] [stderr] 46: 0x7f4ce6d9238a - rustc_query_system[50d9efc904e05111]::query::plumbing::try_execute_query::, &rustc_data_structures[7dd3ac3ff0520fbe]::steal::Steal>> [INFO] [stderr] 47: 0x7f4ce778050e - ::mir_const [INFO] [stderr] 48: 0x7f4ce6a2e553 - rustc_mir_transform[9ef21538bf51cc1e]::mir_promoted [INFO] [stderr] 49: 0x7f4ce7142d43 - rustc_query_system[50d9efc904e05111]::query::plumbing::try_execute_query::, (&rustc_data_structures[7dd3ac3ff0520fbe]::steal::Steal, &rustc_data_structures[7dd3ac3ff0520fbe]::steal::Steal>)>> [INFO] [stderr] 50: 0x7f4ce7780ab6 - ::mir_promoted [INFO] [stderr] 51: 0x7f4ce72250e2 - rustc_borrowck[5ba217849104aca8]::mir_borrowck [INFO] [stderr] 52: 0x7f4ce7224c11 - >::call_once [INFO] [stderr] 53: 0x7f4ce6cee07d - rustc_query_system[50d9efc904e05111]::query::plumbing::try_execute_query::> [INFO] [stderr] 54: 0x7f4ce7782385 - ::mir_borrowck [INFO] [stderr] 55: 0x7f4ce74ea2f2 - rustc_typeck[1c1b7dedada1227e]::collect::type_of::type_of [INFO] [stderr] 56: 0x7f4ce6d97ef4 - rustc_query_system[50d9efc904e05111]::query::plumbing::get_query:: [INFO] [stderr] 57: 0x7f4ce71f06f0 - rustc_typeck[1c1b7dedada1227e]::check::check::check_item_type [INFO] [stderr] 58: 0x7f4ce71ecb0e - rustc_typeck[1c1b7dedada1227e]::check::check::check_mod_item_types [INFO] [stderr] 59: 0x7f4ce67a84f0 - rustc_query_system[50d9efc904e05111]::query::plumbing::try_execute_query::> [INFO] [stderr] 60: 0x7f4ce72c1ab5 - rustc_query_system[50d9efc904e05111]::query::plumbing::get_query:: [INFO] [stderr] 61: 0x7f4ce755dd5c - ::for_each_module:: [INFO] [stderr] 62: 0x7f4ce7266c45 - rustc_typeck[1c1b7dedada1227e]::check_crate [INFO] [stderr] 63: 0x7f4ce7264a62 - rustc_interface[5b9d04fc58ee7720]::passes::analysis [INFO] [stderr] 64: 0x7f4ce760f72f - rustc_query_system[50d9efc904e05111]::query::plumbing::try_execute_query::>> [INFO] [stderr] 65: 0x7f4ce760f440 - rustc_query_system[50d9efc904e05111]::query::plumbing::get_query:: [INFO] [stderr] 66: 0x7f4ce66ac744 - ::enter::> [INFO] [stderr] 67: 0x7f4ce66a92ae - ::enter::, rustc_errors[ffc9f8ad040f737d]::ErrorGuaranteed>> [INFO] [stderr] 68: 0x7f4ce66a441c - rustc_span[b6ed302232182e4]::with_source_map::, rustc_interface[5b9d04fc58ee7720]::interface::create_compiler_and_run, rustc_driver[37844947c1c4e730]::run_compiler::{closure#1}>::{closure#1}> [INFO] [stderr] 69: 0x7f4ce66a3e12 - rustc_interface[5b9d04fc58ee7720]::interface::create_compiler_and_run::, rustc_driver[37844947c1c4e730]::run_compiler::{closure#1}> [INFO] [stderr] 70: 0x7f4ce66a2a61 - >::set::, rustc_driver[37844947c1c4e730]::run_compiler::{closure#1}>::{closure#0}, core[fae64f17691dff84]::result::Result<(), rustc_errors[ffc9f8ad040f737d]::ErrorGuaranteed>> [INFO] [stderr] 71: 0x7f4ce66a274f - std[17c996d5f6362125]::sys_common::backtrace::__rust_begin_short_backtrace::, rustc_driver[37844947c1c4e730]::run_compiler::{closure#1}>::{closure#0}, core[fae64f17691dff84]::result::Result<(), rustc_errors[ffc9f8ad040f737d]::ErrorGuaranteed>>::{closure#0}, core[fae64f17691dff84]::result::Result<(), rustc_errors[ffc9f8ad040f737d]::ErrorGuaranteed>> [INFO] [stderr] 72: 0x7f4ce76a1629 - <::spawn_unchecked_, rustc_driver[37844947c1c4e730]::run_compiler::{closure#1}>::{closure#0}, core[fae64f17691dff84]::result::Result<(), rustc_errors[ffc9f8ad040f737d]::ErrorGuaranteed>>::{closure#0}, core[fae64f17691dff84]::result::Result<(), rustc_errors[ffc9f8ad040f737d]::ErrorGuaranteed>>::{closure#1} as core[fae64f17691dff84]::ops::function::FnOnce<()>>::call_once::{shim:vtable#0} [INFO] [stderr] 73: 0x7f4ce4ff5663 - as core::ops::function::FnOnce>::call_once::hbcba3d5baddb20d1 [INFO] [stderr] at /rustc/c3491e21996dc67a8e37d9e5e74ed156563e9854/library/alloc/src/boxed.rs:1940:9 [INFO] [stderr] 74: 0x7f4ce4ff5663 - as core::ops::function::FnOnce>::call_once::hcb40027853eebed4 [INFO] [stderr] at /rustc/c3491e21996dc67a8e37d9e5e74ed156563e9854/library/alloc/src/boxed.rs:1940:9 [INFO] [stderr] 75: 0x7f4ce4ff5663 - std::sys::unix::thread::Thread::new::thread_start::habdd10d71164d0ca [INFO] [stderr] at /rustc/c3491e21996dc67a8e37d9e5e74ed156563e9854/library/std/src/sys/unix/thread.rs:108:17 [INFO] [stderr] 76: 0x7f4ce4ea5609 - start_thread [INFO] [stderr] 77: 0x7f4ce4dc8133 - clone [INFO] [stderr] 78: 0x0 - [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 1.65.0-nightly (c3491e219 2022-09-03) running on x86_64-unknown-linux-gnu [INFO] [stderr] [INFO] [stderr] note: compiler flags: --crate-type bin -C embed-bitcode=no -C debuginfo=2 [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] #0 [typeck] type-checking `ir::structs::::preds` [INFO] [stderr] #1 [mir_built] building MIR for `ir::structs::::preds` [INFO] [stderr] #2 [unsafety_check_result] unsafety-checking `ir::structs::::preds` [INFO] [stderr] #3 [mir_const] processing MIR for `ir::structs::::preds` [INFO] [stderr] #4 [mir_promoted] processing `ir::structs::::preds` [INFO] [stderr] #5 [mir_borrowck] borrow-checking `ir::structs::::preds` [INFO] [stderr] #6 [type_of] computing type of `ir::structs::::preds::{opaque#0}` [INFO] [stderr] #7 [check_mod_item_types] checking item types in module `ir::structs` [INFO] [stderr] #8 [analysis] running analysis passes on this crate [INFO] [stderr] end of query stack [INFO] [stdout] error: aborting due to previous error; 4 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] error: could not compile `mylang` due to previous error; 4 warnings emitted [INFO] running `Command { std: "docker" "inspect" "830c8b7f51f57d8b5ddc2d53e7eb019f929bf4f1b517a89de28d5f8f7647d728", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "830c8b7f51f57d8b5ddc2d53e7eb019f929bf4f1b517a89de28d5f8f7647d728", kill_on_drop: false }` [INFO] [stdout] 830c8b7f51f57d8b5ddc2d53e7eb019f929bf4f1b517a89de28d5f8f7647d728