From jupiter/parquet2json#19:
Installing parquet2json v2.0.2 (/home/ubuntu/c/parquet2json)
Updating crates.io index
Compiling libc v0.2.149
Compiling proc-macro2 v1.0.69
Compiling unicode-ident v1.0.12
Compiling autocfg v1.1.0
Compiling cfg-if v1.0.0
Compiling version_check v0.9.4