ErrLookup › rust-lang/rust
rust-lang/rust
Empowering everyone to build reliable and efficient software. · Rust · 6,395 source files
Analyzed at 7088e4b63a on 2026-08-10. 229 documented errors.
| Code / Message | Type | Severity | Tags |
|---|---|---|---|
| cannot allocate registers | panic | error | rustc, cranelift, codegen, inline-asm, register-allocation, x86, cg-clif |
| rust-analyzer Language Server is not available. Please… | exception | critical | rust-analyzer, vscode-extension, language-server, configuration, binary-resolution |
| CFG_RELEASE env var | exception | error | rustc, proc-macro, build, bootstrap, env-var |
| Expected a string literal | exception | error | rustc, proc-macro, query, compiler-internals, documentation |
| archive member at offset | exception | error | rustc, archive, rlib, codegen, io, corruption |
| extraction of the title failed | exception | error | rust-analyzer, asciidoc, converter, release-notes, xtask |
| expected a `Session` | panic | critical | rustc, builtin-macros, format, ice, lint, compiler-internal |
| LLVM bitcode object in C static library (LTO not supported) | exception | error | rustc, linker, lto, cdylib, static-lib, clang |
| reservation impl for trait with assoc item | panic | critical | rustc, trait-solver, nightly, compiler-internal, reservation-impl |
| Non terminating drop_in_place_real??? | panic | critical | rustc, cranelift, codegen, ice, drop-glue, mir, compiler-internal |
| no encoded ident for item | panic | critical | metadata, rmeta, decoder, ice, incremental-compilation |
| expected pointee to have a layout | panic | critical | rustc, cranelift, codegen, ice, layout, intrinsics, unsized, compiler-internal |
| LTO object in C static library is not supported | exception | error | rustc, linker, lto, cdylib, static-lib, gcc |
| Kind | panic | error | rustc, codegen-gcc, ice, compiler-internal, type-kind, invariant |
| coroutine lowered from async gen fn should be in fn | panic | critical | rustc, borrowck, ice, async-gen, coroutine, nightly, compiler-internal |
| llvm-readelf failed for binary | exception | critical | fuchsia, llvm, elf, subprocess, toolchain |
| Failed to resolve ` ` with | exception | error | rustc-public, mir, monomorphization, instance, generic-args |
| file locks not supported on this platform | exception | error | rustc, flock, platform, incremental-compilation, unsupported |
| src/stage0 doesn't contain a checksum for | exception | critical | bootstrap, rustc, stage0, checksum, platform-support, python |
| {context}: {err} | exception | error | rustc, archive, io, codegen, operational |
| not implemented | panic | error | rust, rustc-codegen-gcc, statics, bool, codegen, consts |
| erroneous constant missed by mono item collection | panic | critical | rustc, cranelift, codegen, ice, const-eval, incremental, mono-item-collection, compiler-internal |
| Cargo invocation has failed | exception | error | rust-analyzer, cargo, build, child-process, typescript |
| TOOLCHAIN_NAME | panic | error | rustc, cranelift, codegen-backend, build-config, toolchain, env-var, cg-clif |
| unsupported LLVM intrinsic | panic | error | rustc, codegen-gcc, llvm-intrinsic, simd, libgccjit, ice, compiler-internal |
| counting sort fills every slot of a kind's range | panic | critical | incremental-compilation, dep-graph, ice, corruption |
| alt layout should always work | panic | error | rust, compiler-internal, layout, ice |
| attributes not supported on queries | exception | error | rustc, proc-macro, query, compiler-internals |
| variants are not encoded for an enum | panic | critical | metadata, rmeta, decoder, enum, ice |
| unsupported Apple pointer width | panic | error | rustc, codegen-ssa, apple, linking, pointer-width, ice, compiler-internal, target-spec |
| Unrecognized target triple | exception | error | ci, fuchsia, target-triple, architecture, python |
| not found | exception | critical | bootstrap, rustc, vendoring, offline-build, python |
| Polonius output is unavailable despite `-Z polonius` | panic | critical | rustc, borrowck, polonius, ice, nightly, compiler-internal |
| bootstrap error. See the logs in "OUTPUT > Rust Analyzer… | exception | critical | rust-analyzer, vscode-extension, bootstrap, error-wrapping, logging |
| Failed to wait for `as`. | panic | error | rustc, cranelift, codegen, global-asm, subprocess, oom, signal, environment, cg-clif |
| failed to find config line for | validation | error | bootstrap, rustc, configure, config, python |
| Cannot determine the type of workflow that is being executed | validation | error | ci, citool, github-actions, configuration, environment-variables |
| duplicate modifier | exception | error | rustc, proc-macro, query, compiler-internals |
| processing delegation | panic | error | hir, delegation, ice, nightly-feature |
| extracted directory contains more than one dir | exception | error | ci, android, sdk, extraction, zip, python |
| Failed to execute --version. | exception | critical | rust-analyzer, vscode-extension, executable, binary-validation, configuration |
| unexpected base kind for gap region | exception | error | coverage-dump, llvm, coverage, parsing |
| pidfd_spawnp succeeded but the child's PID could not be… | exception | error | rust, std, process, linux, pidfd, spawn, syscall |
| proc-macro server did not respond with data | exception | error | rust-analyzer, proc-macro, ipc, protocol, broken-pipe |
| {self:?} | exception | error | rustc-public, const-eval, mir, error-handling |
| attributes must be outer attributes (`///`), not inner… | exception | error | rustc, proc-macro, query, compiler-internals, documentation |
| missing polonius context with `-Zpolonius=next` | panic | critical | rustc, borrowck, polonius, ice, dump-mir, nightly, compiler-internal |
| Can't have a type error relating to itself | panic | critical | rustc, borrowck, polonius, ice, variance, nightly, compiler-internal |
| failed to open NUL device for child | exception | error | rust, std, process, windows, stdio, spawn, io |
| closed | exception | error | rust-analyzer, proc-macro, ipc, protocol, eof, crash |
| expected monomorphic const in codegen | panic | critical | rustc, cranelift, codegen, ice, debuginfo, monomorphization, const-eval, array, compiler-internal |
| package not found | validation | error | ci, android, sdk, package-resolution, python |
| features not available at this point in the compiler | panic | error | rust, attributes, feature-gate, compiler-internal |
| Failed to spawn `as`. | panic | error | rustc, cranelift, codegen, global-asm, assembler, environment, binutils, cg-clif |
| no parent for a constructor | panic | critical | metadata, rmeta, decoder, constructors, ice |
| Unrecognized config profile | validation | error | bootstrap, rustc, configuration, profile, python |
| Invalid number of arguments | validation | error | rustdoc, htmldocck, testing, directive |
| unknown mapping kind | exception | error | coverage-dump, llvm, coverage, parsing, version-skew |
| No compilation artifacts | exception | error | rust-analyzer, cargo, artifacts, build, typescript |
| Since this `SanitizerSet` is returned from an iterator… | panic | error | rust, sanitizer, attributes, ice |
| discr subgoal... | panic | critical | rustc, trait-solver, nightly, unsafe-binders, discriminant |
| File path is invalid | validation | error | rust-analyzer, proc-macro, windows, dylib, filesystem, path |
| failed to run | exception | critical | bootstrap, rustc, child-process, build-failure, python |
| config key not in sections or top_level_keys | validation | error | bootstrap, rustc, configure, config, validation, python |
| {path}: {e} | exception | error | rustfmt, io, rust |
| `rustc_codegen_gcc` doesn't support scalable vectors yet | panic | error | rust, rustc-codegen-gcc, scalable-vectors, sve, risc-v, simd |
| hash mismatch for package | exception | critical | ci, android, sdk, checksum, integrity, python |
| unknown query modifier | exception | error | rustc, proc-macro, query, compiler-internals |
| no encoded attributes for a structure or variant | panic | critical | metadata, rmeta, decoder, attributes, ice |
| provided `DefIndex` must refer to a module-like item | panic | critical | metadata, rmeta, decoder, module-resolution, ice |
| `feature(generic_const_exprs)` is not supported in the new… | panic | error | rustc, next-solver, const-generics, generic-const-exprs, nightly, ice, compiler-internal, feature-incompatibility |
| requires target_has_reliable_f16 | panic | error | stdlib, f16, parsing, target-cfg, nightly |
| Cannot parse an HTML file | exception | error | htmldocck, rustdoc, html, parsing, xml |
| failed verification | exception | critical | bootstrap, rustc, stage0, checksum, verification, integrity, python |
| non-rigid unevaluated constant for… | panic | error | rustc, next-solver, const-generics, const-normalization, nightly, ice, compiler-internal, unfinished-feature |
| target block for the title is not found | exception | error | rust-analyzer, asciidoc, converter, release-notes, xtask |
| Unable to parse transfer manifest | exception | critical | fuchsia, ffx, json, network, product-bundle |
| Operation Timed out | exception | error | rust, std, network, uefi, tcp, timeout, firmware |
| Accessing live loans requires `-Zpolonius=next` | panic | critical | rustc, borrowck, polonius, ice, nightly, compiler-internal |
| AsyncFn* are not yet const | panic | error | rustc, next-solver, const-eval, async-fn-traits, nightly, ice, compiler-internal, unfinished-feature |
| failed to find foreign module | panic | error | metadata, ffi, linking, native-libraries, ice |
| IO error creating MIR dump directory | exception | error | rustc, mir, dump, io, debugging, unstable-flags |
| `Self` generic param is not found while expected | panic | error | rust, delegation, compiler-internal, ice |
| Computed job list is empty | validation | error | ci, citool, job-matrix, configuration |
| funnel shift on | panic | error | rustc, codegen-gcc, simd, funnel-shift, ice, compiler-internal |
| alt layout should have a niche like the regular one | panic | error | rust, compiler-internal, layout, ice |
| no cargo executable found at | exception | critical | bootstrap, rustc, cargo, stage0, path-resolution, python |
| Failed to find targets | exception | error | rustfmt, cargo-fmt, cargo-metadata, targets, workspace |
| return depth from strip_n_refs should be smaller than the… | panic | error | rust, borrowck, diagnostics, ice |
| Failed to get metadata for config file | exception | error | rustfmt, config, filesystem, permissions, metadata |
| file missing LicenseConcluded | validation | error | collect-license-metadata, spdx, licensing, parsing |
| no traits in scope for a doc link | panic | error | metadata, rmeta, decoder, rustdoc, doc-links, ice |
| proc-macro-srv-cli needs to be compiled with the… | exception | error | rust-analyzer, proc-macro, build, feature-flag, configuration |
| empty prefix in a simple import | panic | error | rust, ast, use-import, panic |
| Failed to convert address to SocketAddr | exception | error | rust, std, network, sgx, dns, socket |
| Fn* are not yet const | panic | error | rustc, next-solver, const-eval, fn-traits, nightly, ice, compiler-internal, unfinished-feature |
| line | exception | error | htmldocck, rustdoc, parsing, shlex, test-template |
| failed to lookup address information | exception | error | rust, std, network, hermit, dns, unikernel, socket |
| Already encoded SourceMap! | panic | critical | metadata, rmeta, encoder, source-map, ice |
| {e:?}: {error} | exception | error | rust-analyzer, subprocess, io, flycheck, cargo |