Download failed when I use method save_url

It sounds like you're trying to save a file, presumably an image file, but based on the truncated URL you shared here, the URL you're using is actually to a Google Images HTML page, not to the image itself.

Accordingly, the save operation is failing. If you're trying to save an image file, get and use the actual URL to the image itself.

Thank you for the quick help! It really was my mistake and now everything works.
But I have another problem - I get "download failed" when I try to load a big file(about 200 Mb). Are there some limits on the size of a file that I want to load?

Roman_argon There isn't a file size limit exactly, but there is a time limit. The transfer has to complete within 5 minutes. Is the job taking more than 5 minutes in this case?

Unfortunately no. For example, when I use URL on file that has 72 Mb size I get next responses: 
1) job_id%: YB64oiAB.....

2) {

    ".tag" = "in_progress";

    }  (I get it 56 times)
3) 

{

    "client_modified" = "2019-05-14T07:03:24Z";

    "content_hash" = 4037d00b191afe414538970d5b165ddfa8696dd2c4209940fb4fdc064ae6dd4f;

    id = "id:BMvdcsqw6EAAAAAAAAABMg";

    name = "\U0420\U0430\U0437\U044a\U0435\U0437\U0434 18\U043a\U043c. \U041f\U0440\U0438\U043d\U0446\U0438\U043f\U0438\U0430\U043b\U044c\U043d\U044b\U0435 \U0441\U0445\U0435\U043c\U044b.pdf";

    "path_display" = "/\U0420\U0430\U0437\U044a\U0435\U0437\U0434 18\U043a\U043c. \U041f\U0440\U0438\U043d\U0446\U0438\U043f\U0438\U0430\U043b\U044c\U043d\U044b\U0435 \U0441\U0445\U0435\U043c\U044b.pdf";

    "path_lower" = "/\U0440\U0430\U0437\U044a\U0435\U0437\U0434 18\U043a\U043c. \U043f\U0440\U0438\U043d\U0446\U0438\U043f\U0438\U0430\U043b\U044c\U043d\U044b\U0435 \U0441\U0445\U0435\U043c\U044b.pdf";

    rev = 3443ae3b3d7;

    "server_modified" = "2019-05-14T07:03:34Z";

    size = 74214029;

}

All of this takes only 25 seconds.
But when I use URL on file that has 139 Mb size I get next responses: 

1) job_id%:YB64oiABCYAA.....
2)

2) {

    ".tag" = "in_progress";

    }  (I get it only 1 time)
3) And immediately I get: 

{

    ".tag" = failed;

    failed =     {

        ".tag" = "download_failed";

    };

}

All of this takes 3 seconds. I have the same problems with all files that have size more than 100 Mb

 

I just tried this and successfully saved a 200 MB file, so it sounds like there may be something specific to the URLs you're using.

Would you be able to share a sample URL that's failing like this so we can look into it? Feel free to open an API ticket if you'd prefer to share privately.