gistfile1.txt

    let mut c = configure(o);                                                                                       
    let home = c.root;                                                                                              
    let first_time = os::path_exists(&home.push("sources.json"));                                                   
                                                                                                                    
    if !first_time && o.free[1] != ~"init" {                                                                        
        cmd_init(&c);                                                                                               
                                                                                                                    
        // FIXME (#2662): shouldn't need to reconfigure                                                             
        c = configure(o);                                                                                           
    }                                                                                                               
                                                                                                                    
    let c = &c;                                                                                                     
                                        



/home/brian/dev/rust/src/cargo/cargo.rs:1929:8: 1929:9 error: assigning to mutable local variable prohibited due to outstanding loan
/home/brian/dev/rust/src/cargo/cargo.rs:1929         c = configure(o);
                                                     ^
/home/brian/dev/rust/src/cargo/cargo.rs:1932:13: 1932:14 note: loan of mutable local variable granted here
/home/brian/dev/rust/src/cargo/cargo.rs:1932     let c = &c;



Oh, but this works:

                                                                                                                    
    let mut c = configure(o);                                                                                       
    let home = c.root;                                                                                              
    let first_time = os::path_exists(&home.push("sources.json"));                                                   
                                                                                                                    
    if !first_time && o.free[1] != ~"init" {                                                                        
        cmd_init(&c);                                                                                               
                                                                                                                    
        // FIXME (#2662): shouldn't need to reconfigure                                                             
        c = configure(o);                                                                                           
    }                                                                                                               
                                                                                                                    
    let d = move c;                                                                                                 
    let c = &d;                        


And this works!

    let mut c = configure(o);                                                                                       
    let home = c.root;                                                                                              
    let first_time = os::path_exists(&home.push("sources.json"));                                                   
                                                                                                                    
    if !first_time && o.free[1] != ~"init" {                                                                        
        cmd_init(&c);                                                                                               
                                                                                                                    
        // FIXME (#2662): shouldn't need to reconfigure                                                             
        c = configure(o);                                                                                           
    }                                                                                                               
                                                                                                                    
    let c = &move c;