Servo on Windows is sometimes failing with return value 127

[jasonwilliams]

On my host machine
RUST_BACKTRACE=1 target/debug/servo.exe tests/html/about-mozilla.html
works, loads up the window and shows the book of mozilla.
However, when i run via ./mach i get

Jason@DESKTOP-P2J3G0V MINGW64 ~/servo
$ ./mach run tests/html/about-mozilla.html
Servo exited with return value 127

When running without the rust backtrace Env i get....

$ target/debug/servo.exe tests/html/about-mozilla.html
thread '<main>' panicked at 'called `Option::unwrap()` on a `None` value', ../src/libcore\option.rs:330

This is a bit hard to debug without a backtrace, whats the difference between the 2?

[jasonwilliams]

I've moved the conversation from #9468 to this ticket as the previous ticket was about a separate issue

[jasonwilliams]

Here is whats outputted when i run ./mach env

Jason@DESKTOP-P2J3G0V MINGW64 ~/servo
$ ./mach env
export PATH=/home/Jason/servo/.servo/rust/2015-12-27/rustc-nightly-x86_64-pc-win dows-gnu/rustc/bin:/home/Jason/servo/.servo/rust/2015-12-27/rustc-nightly-x86_64 -pc-windows-gnu/bin:/home/Jason/servo/.servo/cargo/2015-10-01/cargo/bin:/home/Ja son/servo/.servo/cargo/2015-10-01/bin:/home/Jason/servo/python/_virtualenv/bin:/ mingw64/bin:/usr/local/bin:/usr/bin:/bin:/c/ProgramData/Oracle/Java/javapath:/c/ WINDOWS/system32:/c/WINDOWS:/c/WINDOWS/System32/Wbem:/c/WINDOWS/System32/Windows PowerShell/v1.0:/c/Program Files (x86)/Git/bin:/c/Program Files/nodejs:/c/php:/c /ProgramData/ComposerSetup/bin:/c/Program Files/Microsoft Windows Performance To olkit:/c/Program Files (x86)/Windows Kits/10/Windows Performance Toolkit:/c/Prog ram Files/Microsoft SQL Server/110/Tools/Binn:/c/Program Files (x86)/Microsoft S DKs/TypeScript/1.0:/c/Go/bin:/c/HashiCorp/Vagrant/bin:/c/ProgramData/chocolatey/ bin:/c/Program Files (x86)/vim/vim74:/c/Program Files/TortoiseSVN/bin:/c/ProgramFiles (x86)/Skype/Phone:/c/Ruby22-x64/bin:/c/Users/Jason/.dnx/bin:/c/WINDOWS/sy stem32:/c/WINDOWS:/c/WINDOWS/System32/Wbem:/c/WINDOWS/System32/WindowsPowerShell /v1.0:/c/Go/bin:/c/Program Files (x86)/Git/bin:/c/Program Files/nodejs:/c/php:/c /Users/Jason/AppData/Roaming/npm:/c/Python27:/c/Python27/Scripts:/c/Program File s (x86)/Microsoft Visual Studio 10.0/VC/bin:/c/Program Files/Oracle/VirtualBox:/ c/Program Files/Rust stable 1.4/bin:/c/Program Files (x86)/Nmap:/c/Program Files /Sublime Text 3:/c/Users/Jason/AppData/Local/atom/bin:/usr/bin/site_perl:/usr/bi n/vendor_perl:/usr/bin/core_perl
export LD_LIBRARY_PATH=/home/Jason/servo/.servo/rust/2015-12-27/rustc-nightly-x8 6_64-pc-windows-gnu/rustc/lib:/home/Jason/servo/.servo/rust/2015-12-27/rustc-nig htly-x86_64-pc-windows-gnu/lib:

And my echo $PATH

$ echo $PATH
/mingw64/bin:/usr/local/bin:/usr/bin:/bin:/c/ProgramData/Oracle/Java/javapath:/c/WINDOWS/system32:/c/WINDOWS:/c/WINDOWS/System32/Wbem:/c/WINDOWS/System32/WindowsPowerShell/v1.0:/c/Program Files (x86)/Git/bin:/c/Program Files/nodejs:/c/php:/c/ProgramData/ComposerSetup/bin:/c/Program Files/Microsoft Windows Performance Toolkit:/c/Program Files (x86)/Windows Kits/10/Windows Performance Toolkit:/c/Program Files/Microsoft SQL Server/110/Tools/Binn:/c/Program Files (x86)/Microsoft SDKs/TypeScript/1.0:/c/Go/bin:/c/HashiCorp/Vagrant/bin:/c/ProgramData/chocolatey/bin:/c/Program Files (x86)/vim/vim74:/c/Program Files/TortoiseSVN/bin:/c/Program Files (x86)/Skype/Phone:/c/Ruby22-x64/bin:/c/Users/Jason/.dnx/bin:/c/WINDOWS/system32:/c/WINDOWS:/c/WINDOWS/System32/Wbem:/c/WINDOWS/System32/WindowsPowerShell/v1.0:/c/Go/bin:/c/Program Files (x86)/Git/bin:/c/Program Files/nodejs:/c/php:/c/Users/Jason/AppData/Roaming/npm:/c/Python27:/c/Python27/Scripts:/c/Program Files (x86)/Microsoft Visual Studio 10.0/VC/bin:/c/Program Files/Oracle/VirtualBox:/c/Program Files/Rust stable 1.4/bin:/c/Program Files (x86)/Nmap:/c/Program Files/Sublime Text 3:/c/Users/Jason/AppData/Local/atom/bin:/usr/bin/site_perl:/usr/bin/vendor_perl:/usr/bin/core_perl

@jdm here is a comparison of the two

[jasonwilliams]

Looks like this issue is a duplicate of #9465

[frewsxcv]

#9465 was resolved by #10223, so closing this.