bottleneck in file_info_runtime_select()

[wlandau]

With:

# _targets.R file
library(targets)
list(
  tar_target(x, seq_len(1e4)),
  tar_target(y, x, pattern = map(x))
)

and:

# R console
tar_make()
proffer::pprof(tar_outdated(callr_function = NULL))

I see: