Does this work on Linux? Debian? LMDE? Jessie?
Thanks 
It does work for me on Debian Jessie AMD64. I have Java 1.8.0_51.
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I have Eclipse PHP 4.5 MARS (java v8) and RustDT installed from within Eclipse. All good. Creating a new Rust project within Eclipse works and produces a nice HelloWorld which I can run.
When I debug it, almost everything is there (stack, symbols, disassembly etc.) but it says it can't locate the source for main(). Is this a limitation or is it something I can fix?
It doesn't seem to be that - note you are showing the "Run" configuration there, not "Debug" but I don't think that's the issue. If you use debug can you step through the source?
Evenso, the options you have are slightly different to mine...
What I see in the debugger is...
Yes. I can. But I have to switch to main.rs, then I can set the break point on the first line of the main function and then I can click the Play button. After that the debugger stops on the break point. Is this working for you?
I have it working. Just my unfamiliarity with this. I'm not sure why it wasn't setting breakpoints or stepping as I expected, but I can see how to get it working now. Sorry for taking your time - thanks very much for the hand-holding - its surprising how much simple encouragement helps solve problems heh!
No need to apologize. Together, it is easier, better and we are stronger. Don't be afraid to ask again. No one is force to reply anyway. 
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Do you have a plan to release IDE for Rust base on InteliJ? Thanks.
Btw, I currently use sublime3.
Yeah, what was happening is that the launch configuration was stopping on the C runtime main, not the Rust source main function (these are different functions). You can disable stopping in the C runtime main on the Debugger tab of the launch configuration: RustDT/UserGuide_DebuggerLaunchConfiguration.png at latest · RustDT/RustDT · GitHub
I need to fix this cause it keeps confusing users! 
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Yeah, you're not using a released RustDT version, but one build from Git
source. Those build target changes are not available yet.
No, my expertise is with Eclipse only I'm afraid.
I do hope to improve Racer and other Rust command-line tools in the future though, and as such these could be of use to other IDEs/editors.
Have you had success importing projects from github.com?
I've encountered two problems with this. The first is that searching for repositories doesn't find all the matches. Inconvenient but not a killer.
The second is that having imported, the files look fine, but Build Project just hangs with no progress. I'm not sure how to debug this. I was expecting it is just running "cargo build" which should just work, but maybe it needs the build configuration tweaking in some way I don't understand, because of not picking up things in the repo's config files perhaps.
For example. Eclipse PHP 4.5 with RustDT, mylyn Git...
Eclipse Project Pane > Import > Git > Repositories from Github > "safe_client" > Search
Choose "maidsafe/safe_client" > Finish
Eclipse Project Pane > New > Project > Rust Cargo Project
Uncheck use default location and browse to ~/git/maidsafe/safe_client and "Finish"
It converts to an Eclipse project which now appears in the Project pane as "safe_client [safe_client master]"
Project > Build Project
Shows the progress dialog for "Building project..." / "invoking 'Rust builder' on '/safe_client'" but the progress bar never moves and you have to cancel.
Manually running "cargo build" and "cargo test" in the project directory works as expected, but I don't know why Build Project isn't working in Eclipse.
NOTE: actually the repo cloning within Eclipse seemed not to complete when I was documenting the above example so I actually did a manual git clone http://github.com/maidsafe/safe_client and then did the
Eclipse Project Pane > New > Project > Rust Cargo Project
and then Build Project.
If you press cancel during the Build Project, does it actually work, does the build stop? If not, it's likely this bug:
Basically the build takes ages to complete if Cargo reported a lot of warnings, like, 1000+ or so.
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Feeling really stupid here :#)
It was probably working, but with no progress happening and no output it seemed not to be doing anything, until... (as a result of reading this bug report - so thanks) I clicked to the console tab, and there it was compiling and spewing out warnings etc.
So here I am debugging the maidsafe safe_client example: self_authentication...
Thank you very much for your help. RustDT rocks