Dynamic target not logged as failed when a sub-target fails

[wlandau]

Prework

• Read and abide by drake's code of conduct.
• Search for duplicates among the existing issues, both open and closed.
• Advanced users: verify that the bug still persists in the current development version (i.e. remotes::install_github("ropensci/drake")) and mention the SHA-1 hash of the Git commit you install.

Reproducible example

library(drake)
plan <- drake_plan(
  x = seq_len(2),
  y = target(stop(x), dynamic = map(x))
)
make(plan)
#> In drake, consider r_make() instead of make(). r_make() runs make() in a fresh R session for enhanced robustness and reproducibility.
#> target x
#> dynamic y
#> subtarget y_0b3474bd
#> fail y_0b3474bd
#> Error: Target `y_0b3474bd` failed. Call `diagnose(y_0b3474bd)` for details. Error message:
#>   1
failed()
#> [1] "y_0b3474bd"

^{Created on 2020-01-31 by the reprex package (v0.3.0)}