dcast issue on dataframe consisting two columns

I have a dataframe with two columns and trying to convert it two wide format as shown below. However, I am not able to figure out for a data frame consisting only a numeric and a non numeric column.

library(tidyverse)
library(reshape2)

sample_frame<-data.frame(id=c("x","x","y","y","z","z"),value=c(1,2,3,4,5,6))

desired_output<-cbind(x=filter(sample_frame,id=="x")$value,
                       y=filter(sample_frame,id=="y")$value,
                      z=filter(sample_frame,id=="z")$value)
sample_frame
desired_output

desired_output<-dcast(sample_frame,id~.,value.var="value")
desired_output

> sample_frame
  id value
1  x     1
2  x     2
3  y     3
4  y     4
5  z     5
6  z     6
> desired_output
     x y z
[1,] 1 3 5
[2,] 2 4 6
> 
> desired_output<-dcast(sample_frame,id~.,value.var="value")
Aggregation function missing: defaulting to length
> desired_output
  id .
1  x 2
2  y 2
3  z 2

As shown above using dcast is giving me aggregation.