Doncaster put on an impressive second-half display, with Gregg Blundell netting just two minutes after the interval, before adding a second in the 68th minute.
Adebayo Akinfenwa's bagged a third for his side in the 73rd minute from close range, putting the match beyond Bury. Harpal Singh's late consolation goal raised a smile, but it would have been a miserable journey home for the small crowd of travelling fans at the Belle Vue.
Rovers' lead at the top could have been four points, but Hull City came from behind against Kidderminster to make sure that they recorded a point.
The Harriers went ahead after 22nd minutes thanks to Simon Brown, but the Tigers fought back and a left-footed effort from Ben Burgess ensured that Hull City's title hopes stayed alive.
At the other end of the table, bottom club Carlisle continued their extraordinary revival with a 2-1 victory at Swansea and are now within two points of Macclesfield (who face York City on Sunday).
Paul Connor gave the hosts a 15th minute advantage but Carlisle replied through Craig Farrell's 26th minute penalty before Peter Duffield secured the winning goal after 60 minutes.
Bristol Rovers eased their relegation fears with a 2-1 win over Cheltenham thanks to Adam Barrett and Junior Agogo overturning John Brough's opener.
Darlington, who in recent weeks have drawn with both Doncaster Rovers and Torquay United, failed to make a mark at Boston, going 1-0 down to a Steve Melton strike on the stroke of half-time. There was a bit of controversy as to whether or not the ball actually crossed the line, but what can the Quakers' do about that now? Nothing.
Shane Tudor netted a last minute goal for Cambridge to secure a point against play-off hopefuls Mansfield, while a nine-man Huddersfield Town side somehow managed to secure a point at Leyton Orient - keeping them in the third automatic promotion spot.
Gary Alexander got things going for Orient in the fifth minute, but it was cancelled out just four minutes later by Huddersfield's Andy Booth.
Pawel Abbot was shown the red card for violent conduct, and then Booth was given his marching orders for a second yellow card. This ended the Terriers' hopes of victory at Brisbane Road, but they did manage to hold on and earn a point.
Torquay held onto fourth place in the league after coming from behind to secure a 2-2 draw with Yeovil infront of a capacity crowd.
Lincoln are now within two points of Torquay, thanks to a comprehensive 3-0 win away at struggling Rochdale, thanks to three goals in nine minutes from Gary Fletcher (2) and Simon Yeo.
Oxford slipped below Lincoln after suffering a 2-1 defeat away to Northampton Town.
It was Oxford who netted first through Steve Basham, but the U's couldn't hold onto the lead. Marc Richards pulled one back for the Cobblers with his fifth goal in two games, but Paul Trollope scored the winning goal after 73 minutes.
The result will be a big blow to promotion hopefuls Oxford.
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