rusti cannot be compiled on beta or stable channels because it uses unstable Rust APIs

[murarth]

Note to users: In order to build and run rusti, you can use rustup to install a nightly build of rusti, by using the --channel=nightly flag. Further directions can be found on the rustup page.

Now, on to the details of the issue: Some of the minor unstable features currently in use will likely be worked out and stabilized as Rust progresses; however, rusti also makes use of private_rustc features which are internal to the rustc Rust compiler crate. These APIs are, of course, necessary for compiling input Rust code. As the compiler will be in flux for quite some time, it is not clear when, if ever, these APIs will be stabilized.

[AGhost-7]

So, is there some way to ignore the error? If so, how about adding the details to the readme? I see the REPL being used by people like me, who are new to rust, which don't know how to force it to compile.

[murarth]

No, there's no way to ignore the error if you're using stable or beta releases. Rusti must be built on the nightly channel. I suppose it's reasonable that the readme could draw more attention to this.

[kindlychung]

Doesn't compile on nightly either:

multirust run nightly cargo install --git https://github.com/murarth/rusti
    Updating git repository `https://github.com/murarth/rusti`
 Downloading log v0.3.4
 Downloading getopts v0.2.14
 Downloading env_logger v0.3.2
 Downloading tempfile v1.1.3
 Downloading libc v0.2.4
 Downloading regex v0.1.46
 Downloading aho-corasick v0.4.0
 Downloading regex-syntax v0.2.2
 Downloading memchr v0.1.7
 Downloading winapi v0.2.5
 Downloading kernel32-sys v0.2.1
 Downloading rand v0.3.12
 Downloading winapi-build v0.1.1
 Downloading advapi32-sys v0.1.2
   Compiling libc v0.2.4
   Compiling winapi-build v0.1.1
   Compiling winapi v0.2.5
   Compiling getopts v0.2.14
   Compiling regex-syntax v0.2.2
   Compiling kernel32-sys v0.2.1
   Compiling advapi32-sys v0.1.2
   Compiling log v0.3.4
   Compiling memchr v0.1.7
   Compiling aho-corasick v0.4.0
   Compiling rand v0.3.12
   Compiling tempfile v1.1.3
   Compiling regex v0.1.46
   Compiling env_logger v0.3.2
   Compiling rusti v0.0.1 (https://github.com/murarth/rusti#3500dbd1)
/Users/kaiyin/.multirust/toolchains/nightly/cargo/git/checkouts/rusti-b9d051c1e5ca5fbd/master/src/rusti/repl.rs:16:5: 16:14 error: unresolved import `rustc::ty`. There is no `ty` in `rustc` [E0432]
/Users/kaiyin/.multirust/toolchains/nightly/cargo/git/checkouts/rusti-b9d051c1e5ca5fbd/master/src/rusti/repl.rs:16 use rustc::ty;
                                                                                                                       ^~~~~~~~~
/Users/kaiyin/.multirust/toolchains/nightly/cargo/git/checkouts/rusti-b9d051c1e5ca5fbd/master/src/rusti/repl.rs:16:5: 16:14 help: run `rustc --explain E0432` to see a detailed explanation
/Users/kaiyin/.multirust/toolchains/nightly/cargo/git/checkouts/rusti-b9d051c1e5ca5fbd/master/src/rusti/exec.rs:25:5: 25:31 error: unresolved import `rustc::hir::map`. Could not find `hir` in `rustc` [E0432]
/Users/kaiyin/.multirust/toolchains/nightly/cargo/git/checkouts/rusti-b9d051c1e5ca5fbd/master/src/rusti/exec.rs:25 use rustc::hir::map as ast_map;
                                                                                                                       ^~~~~~~~~~~~~~~~~~~~~~~~~~
/Users/kaiyin/.multirust/toolchains/nightly/cargo/git/checkouts/rusti-b9d051c1e5ca5fbd/master/src/rusti/exec.rs:25:5: 25:31 help: run `rustc --explain E0432` to see a detailed explanation
/Users/kaiyin/.multirust/toolchains/nightly/cargo/git/checkouts/rusti-b9d051c1e5ca5fbd/master/src/rusti/exec.rs:28:5: 28:14 error: unresolved import `rustc::ty`. There is no `ty` in `rustc` [E0432]
/Users/kaiyin/.multirust/toolchains/nightly/cargo/git/checkouts/rusti-b9d051c1e5ca5fbd/master/src/rusti/exec.rs:28 use rustc::ty;
                                                                                                                       ^~~~~~~~~
/Users/kaiyin/.multirust/toolchains/nightly/cargo/git/checkouts/rusti-b9d051c1e5ca5fbd/master/src/rusti/exec.rs:28:5: 28:14 help: run `rustc --explain E0432` to see a detailed explanation
/Users/kaiyin/.multirust/toolchains/nightly/cargo/git/checkouts/rusti-b9d051c1e5ca5fbd/master/src/rusti/exec.rs:33:28: 33:39 error: unresolved import `rustc::hir::lowering::lower_crate`. Could not find `hir` in `rustc` [E0432]
/Users/kaiyin/.multirust/toolchains/nightly/cargo/git/checkouts/rusti-b9d051c1e5ca5fbd/master/src/rusti/exec.rs:33 use rustc::hir::lowering::{lower_crate, LoweringContext};
                                                                                                                                              ^~~~~~~~~~~
/Users/kaiyin/.multirust/toolchains/nightly/cargo/git/checkouts/rusti-b9d051c1e5ca5fbd/master/src/rusti/exec.rs:33:28: 33:39 help: run `rustc --explain E0432` to see a detailed explanation
/Users/kaiyin/.multirust/toolchains/nightly/cargo/git/checkouts/rusti-b9d051c1e5ca5fbd/master/src/rusti/exec.rs:33:41: 33:56 error: unresolved import `rustc::hir::lowering::LoweringContext`. Could not find `hir` in `rustc` [E0432]
/Users/kaiyin/.multirust/toolchains/nightly/cargo/git/checkouts/rusti-b9d051c1e5ca5fbd/master/src/rusti/exec.rs:33 use rustc::hir::lowering::{lower_crate, LoweringContext};
                                                                                                                                                           ^~~~~~~~~~~~~~~
/Users/kaiyin/.multirust/toolchains/nightly/cargo/git/checkouts/rusti-b9d051c1e5ca5fbd/master/src/rusti/exec.rs:33:41: 33:56 help: run `rustc --explain E0432` to see a detailed explanation
/Users/kaiyin/.multirust/toolchains/nightly/cargo/git/checkouts/rusti-b9d051c1e5ca5fbd/master/src/rusti/repl.rs:448:21: 448:25 error: parameter `'tcx` is never used [E0392]
/Users/kaiyin/.multirust/toolchains/nightly/cargo/git/checkouts/rusti-b9d051c1e5ca5fbd/master/src/rusti/repl.rs:448 struct ExprType<'a, 'tcx: 'a> {
                                                                                                                                        ^~~~
/Users/kaiyin/.multirust/toolchains/nightly/cargo/git/checkouts/rusti-b9d051c1e5ca5fbd/master/src/rusti/repl.rs:448:21: 448:25 help: run `rustc --explain E0392` to see a detailed explanation
/Users/kaiyin/.multirust/toolchains/nightly/cargo/git/checkouts/rusti-b9d051c1e5ca5fbd/master/src/rusti/repl.rs:448:21: 448:25 help: consider removing `'tcx` or using a marker such as `core::marker::PhantomData`
error: aborting due to previous error
error: failed to compile `rusti v0.0.1 (https://github.com/murarth/rusti#3500dbd1)`, intermediate artifacts can be found at `/Users/kaiyin/Desktop/target-install`

Caused by:
  Could not compile `rusti`.

To learn more, run the command again with --verbose.

[murarth]

@kindlychung: Yes, it does. On the latest nightly.

https://travis-ci.org/murarth/rusti/builds/123113356

10 minutes ago
rustc 1.9.0-nightly (2b6020723 2016-04-13)

Updating to the latest nightly or checking out an older revision of rusti will solve your issue.

[kindlychung]

So multirust run nightly does not bring you the latest nightly? If so please update the readme to make it more clear. Thanks!

[DeadNumbers]

$ cargo install --git https://github.com/murarth/rusti
    Updating git repository `https://github.com/murarth/rusti`
    Updating registry `https://github.com/rust-lang/crates.io-index`
 Downloading linefeed v0.1.5
 Downloading tempfile v1.1.3
 Downloading getopts v0.2.14
 Downloading env_logger v0.3.5
 Downloading libc v0.2.15
 Downloading rand v0.3.14
 Downloading regex v0.1.74
   Compiling winapi v0.2.8
   Compiling void v1.0.2
   Compiling semver v0.1.20
   Compiling rustc_version v0.1.7
   Compiling cfg-if v0.1.0
   Compiling getopts v0.2.14
   Compiling winapi-build v0.1.1
   Compiling log v0.3.6
   Compiling bitflags v0.4.0
   Compiling regex-syntax v0.3.5
   Compiling libc v0.2.15
   Compiling rand v0.3.14
   Compiling nix v0.6.0
   Compiling kernel32-sys v0.2.2
   Compiling tempfile v1.1.3
   Compiling utf8-ranges v0.1.3
   Compiling thread-id v2.0.0
   Compiling thread_local v0.2.6
   Compiling linefeed v0.1.5
   Compiling memchr v0.1.11
   Compiling aho-corasick v0.5.2
   Compiling regex v0.1.74
   Compiling env_logger v0.3.5
   Compiling rusti v0.0.1 (https://github.com/murarth/rusti#fa23cef2)
error[E0432]: unresolved import `syntax::errors::snippet::FormatMode`
  --> /home/user/.cargo/git/checkouts/rusti-0d7a5d2a59ce2c66/master/src/rusti/exec.rs:41:5
   |
41 | use syntax::errors::snippet::FormatMode;
   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ no `FormatMode` in `syntax::errors::snippet`

error[E0432]: unresolved import `syntax::errors::snippet::FormatMode`
  --> /home/user/.cargo/git/checkouts/rusti-0d7a5d2a59ce2c66/master/src/rusti/input.rs:26:5
   |
26 | use syntax::errors::snippet::FormatMode;
   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ no `FormatMode` in `syntax::errors::snippet`

error[E0425]: unresolved name `llvm::LLVMBuildExecutionEngine`
  --> /home/user/.cargo/git/checkouts/rusti-0d7a5d2a59ce2c66/master/src/rusti/exec.rs:98:27
   |
98 |         let ee = unsafe { llvm::LLVMBuildExecutionEngine(llmod) };
   |                           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^

error[E0425]: unresolved name `llvm::LLVMExecutionEngineAddModule`
   --> /home/user/.cargo/git/checkouts/rusti-0d7a5d2a59ce2c66/master/src/rusti/exec.rs:133:18
    |
133 |         unsafe { llvm::LLVMExecutionEngineAddModule(self.ee, llmod); }
    |                  ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^

error[E0425]: unresolved name `llvm::LLVMExecutionEngineRemoveModule`
   --> /home/user/.cargo/git/checkouts/rusti-0d7a5d2a59ce2c66/master/src/rusti/exec.rs:149:21
    |
149 |                     llvm::LLVMExecutionEngineRemoveModule(self.ee, llmod)
    |                     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^

error[E0425]: unresolved name `llvm::LLVMRustLoadDynamicLibrary`
   --> /home/user/.cargo/git/checkouts/rusti-0d7a5d2a59ce2c66/master/src/rusti/exec.rs:227:32
    |
227 |             let res = unsafe { llvm::LLVMRustLoadDynamicLibrary(cs.as_ptr()) };
    |                                ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^

error[E0425]: unresolved name `llvm::LLVMDisposeExecutionEngine`
   --> /home/user/.cargo/git/checkouts/rusti-0d7a5d2a59ce2c66/master/src/rusti/exec.rs:239:18
    |
239 |         unsafe { llvm::LLVMDisposeExecutionEngine(self.ee) };
    |                  ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^

error[E0061]: this function takes 2 parameters but 1 parameter was supplied
   --> /home/user/.cargo/git/checkouts/rusti-0d7a5d2a59ce2c66/master/src/rusti/exec.rs:316:19
    |
316 |         let cfg = build_configuration(&sess);
    |                   ^^^^^^^^^^^^^^^^^^^^^^^^^^ expected 2 parameters
    |
    = note: the following parameter types were expected: &rustc::session::Session, std::vec::Vec<syntax::ptr::P<syntax::codemap::Spanned<syntax::ast::MetaItemKind>>>

error[E0061]: this function takes 4 parameters but 3 parameters were supplied
   --> /home/user/.cargo/git/checkouts/rusti-0d7a5d2a59ce2c66/master/src/rusti/exec.rs:341:33
    |
341 |                     let trans = driver::phase_4_translate_to_llvm(
    |                                 ^ expected 4 parameters
    |
    = note: the following parameter types were expected: rustc::ty::TyCtxt<'_, '_, '_>, rustc::mir::mir_map::MirMap<'_>, rustc::ty::CrateAnalysis<'_>, &std::collections::HashMap<rustc::dep_graph::DepNode<rustc::hir::def_id::DefId>, u64, std::hash::BuildHasherDefault<rustc_data_structures::fnv::FnvHasher>>

error[E0281]: type mismatch: the type `[closure@/home/user/.cargo/git/checkouts/rusti-0d7a5d2a59ce2c66/master/src/rusti/exec.rs:338:17: 363:18]` implements the trait `for<'a, 'r> std::ops::FnOnce<(rustc::ty::TyCtxt<'a, '_, '_>, std::option::Option<rustc::mir::mir_map::MirMap<'_>>, rustc::ty::CrateAnalysis<'r>, std::collections::HashMap<rustc::dep_graph::DepNode<rustc::hir::def_id::DefId>, u64, std::hash::BuildHasherDefault<rustc_data_structures::fnv::FnvHasher>>)>`, but the trait `for<'a, 'r> std::ops::FnOnce<(rustc::ty::TyCtxt<'a, '_, '_>, std::option::Option<rustc::mir::mir_map::MirMap<'_>>, rustc::ty::CrateAnalysis<'r>, std::collections::HashMap<rustc::dep_graph::DepNode<rustc::hir::def_id::DefId>, u64, std::hash::BuildHasherDefault<rustc_data_structures::fnv::FnvHasher>>, std::result::Result<(), usize>)>` is required (expected a tuple with 5 elements, found one with 4 elements)
   --> /home/user/.cargo/git/checkouts/rusti-0d7a5d2a59ce2c66/master/src/rusti/exec.rs:336:13
    |
336 |             driver::phase_3_run_analysis_passes(
    |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
    |
    = note: required by `rustc_driver::driver::phase_3_run_analysis_passes`

error[E0061]: this function takes 2 parameters but 1 parameter was supplied
   --> /home/user/.cargo/git/checkouts/rusti-0d7a5d2a59ce2c66/master/src/rusti/exec.rs:383:19
    |
383 |         let cfg = build_configuration(&sess);
    |                   ^^^^^^^^^^^^^^^^^^^^^^^^^^ expected 2 parameters
    |
    = note: the following parameter types were expected: &rustc::session::Session, std::vec::Vec<syntax::ptr::P<syntax::codemap::Spanned<syntax::ast::MetaItemKind>>>

error[E0281]: type mismatch: the type `[closure@/home/user/.cargo/git/checkouts/rusti-0d7a5d2a59ce2c66/master/src/rusti/exec.rs:406:21: 409:22 krate:_, f:_]` implements the trait `for<'a, 'r> std::ops::FnOnce<(rustc::ty::TyCtxt<'a, '_, '_>, std::option::Option<rustc::mir::mir_map::MirMap<'_>>, rustc::ty::CrateAnalysis<'r>, std::collections::HashMap<rustc::dep_graph::DepNode<rustc::hir::def_id::DefId>, u64, std::hash::BuildHasherDefault<rustc_data_structures::fnv::FnvHasher>>)>`, but the trait `for<'a, 'r> std::ops::FnOnce<(rustc::ty::TyCtxt<'a, '_, '_>, std::option::Option<rustc::mir::mir_map::MirMap<'_>>, rustc::ty::CrateAnalysis<'r>, std::collections::HashMap<rustc::dep_graph::DepNode<rustc::hir::def_id::DefId>, u64, std::hash::BuildHasherDefault<rustc_data_structures::fnv::FnvHasher>>, std::result::Result<(), usize>)>` is required (expected a tuple with 5 elements, found one with 4 elements)
   --> /home/user/.cargo/git/checkouts/rusti-0d7a5d2a59ce2c66/master/src/rusti/exec.rs:404:13
    |
404 |             driver::phase_3_run_analysis_passes(
    |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
    |
    = note: required by `rustc_driver::driver::phase_3_run_analysis_passes`

error[E0061]: this function takes 2 parameters but 4 parameters were supplied
   --> /home/user/.cargo/git/checkouts/rusti-0d7a5d2a59ce2c66/master/src/rusti/exec.rs:443:27
    |
443 |             let emitter = EmitterWriter::stderr(errors::ColorConfig::Auto,
    |                           ^ expected 2 parameters
    |
    = note: the following parameter types were expected: syntax::rustc_errors::ColorConfig, std::option::Option<std::rc::Rc<syntax::rustc_errors::CodeMapper + 'static>>

error[E0061]: this function takes 2 parameters but 4 parameters were supplied
   --> /home/user/.cargo/git/checkouts/rusti-0d7a5d2a59ce2c66/master/src/rusti/input.rs:471:22
    |
471 |             emitter: EmitterWriter::stderr(ColorConfig::Auto, None, Some(cm),
    |                      ^ expected 2 parameters
    |
    = note: the following parameter types were expected: syntax::rustc_errors::ColorConfig, std::option::Option<std::rc::Rc<syntax::rustc_errors::CodeMapper + 'static>>

error: aborting due to 7 previous errors

error: failed to compile `rusti v0.0.1 (https://github.com/murarth/rusti#fa23cef2)`, intermediate artifacts can be found at `/tmp/cargo-install.Ho2EV1fbk1B9`

Caused by:
  Could not compile `rusti`.

To learn more, run the command again with --verbose.

$ rustc -vV
rustc 1.13.0-nightly (acd3f796d 2016-08-28)
binary: rustc
commit-hash: acd3f796d26e9295db1eba1ef16e0d4cc3b96dd5
commit-date: 2016-08-28
host: x86_64-unknown-linux-gnu
release: 1.13.0-nightly

[murarth]

@DeadNumbers: rusti will not build on anything later than (approximately) 2016-08-01. This is noted in the README: https://github.com/murarth/rusti/#building

This is due to the removal of the ExecutionEngine API; see #86.