Inappropriate ioctl for device

I'm getting the following error when trying to decrypt using keybase. Please let me know what debugging logs/steps you need.

❯ echo "foo" | keybase encrypt mike | keybase decrypt
warn: [GNUPG:] ENC_TO 8F5A1E88E78559A3 1 0
warn: [GNUPG:] PINENTRY_LAUNCHED 31254
warn: gpg: encrypted with 4096-bit RSA key, ID 8F5A1E88E78559A3, created 2014-02-19
warn:       "keybase.io/mike <mike@keybase.io>"
warn: gpg: public key decryption failed: Inappropriate ioctl for device
warn: [GNUPG:] ERROR pkdecrypt_failed 83918950
warn: [GNUPG:] BEGIN_DECRYPTION
warn: [GNUPG:] DECRYPTION_FAILED
warn: gpg: decryption failed: No secret key
warn: [GNUPG:] END_DECRYPTION
error: `gpg` exited with code 2

~
❯ echo "foo" | keybase encrypt mike | gpg -d

You need a passphrase to unlock the secret key for
user: "keybase.io/mike <mike@keybase.io>"
4096-bit RSA key, ID E78559A3, created 2014-02-19 (main key ID 5E57FEBF)

gpg: encrypted with 4096-bit RSA key, ID E78559A3, created 2014-02-19
      "keybase.io/mike <mike@keybase.io>"
foo

❯ keybase version
keybase (keybase.io CLI) v0.8.15
- node.js v0.10.25
- gpg (GnuPG) 2.1.5
- libgcrypt 1.6.3
Identifies as: 'keybase.io node.js client v0.8.15 linux'

❯ gpg -h
gpg (GnuPG) 1.4.19

Start by reproducing the shown keybase encrypt mike | keybase decrypt pipeline with the reported Keybase, Node.js, and GnuPG versions, then compare it with gpg -d, which succeeds. Trace the CLI's decryption and passphrase handling using the requested debugging logs; done means the Keybase pipeline decrypts foo without the ioctl or decryption errors.