javac mcp error

$ ./build
Reading version file...
Done, building Version... 1.0.0
Recompiling...
== MCP 7.44 (data: 7.44, client: 1.5.1, server: 1.5.1) ==
# found wine, ff, ff patches, srgs, name csvs, doc csvs, param csvs, renumber csv, astyle, astyle config
== Recompiling client ==
> Cleaning bin
> Recompiling
'"javac" -encoding UTF-8 -Xlint:-options -deprecation -g -source 1.6 -target 1.6 -classpath "lib:lib/...' failed : 1

== ERRORS FOUND ==

src/minecraft/net/minecraft/client/entity/EntityPlayerSP.java:21: warning: [deprecation] ISidedInventory in net.minecraftforge.common has been deprecated
import net.minecraft.client.particle.EntityPickupFX;
                      ^

src/minecraft/net/minecraft/tileentity/TileEntityFurnace.java:493: warning: [deprecation] getSizeInventorySide(ForgeDirection) in ISidedInventory has been deprecated
    public int getSizeInventorySide(ForgeDirection side)
               ^

src/minecraft/net/minecraft/tileentity/TileEntityFurnace.java:476: warning: [deprecation] getStartInventorySide(ForgeDirection) in ISidedInventory has been deprecated
    public int getStartInventorySide(ForgeDirection side)
               ^

src/minecraft/net/minecraft/item/Item.java:1112: warning: [deprecation] IArmorTextureProvider in net.minecraftforge.common has been deprecated
        return isArmorProvider ? ((IArmorTextureProvider)this).getArmorTextureFile(stack) : null;
                                   ^

src/minecraft/cpw/mods/fml/common/asm/transformers/deobf/FMLDeobfuscatingRemapper.java:176: error: incompatible types
                for (FieldNode fieldNode : classNode.fields) {
                                                    ^

  required: FieldNode
  found:    Object
src/minecraft/net/minecraft/src/ModLoader.java:632: warning: [deprecation] registerBlock(Block) in GameRegistry has been deprecated
        GameRegistry.registerBlock(block);
                    ^

src/minecraft/net/minecraft/src/ModLoader.java:643: warning: [deprecation] registerBlock(Block,Class<? extends ItemBlock>) in GameRegistry has been deprecated
        GameRegistry.registerBlock(block, itemclass);
                    ^

1 error
6 warnings
==================

!! Can not find server sources, try decompiling !!