NCBI Blast+ error: ncbiobj.cpp", line 925: Critical: ncbi::CObject::ThrowNullPointerException()

Dockerfile

FROM ubuntu:14.04
MAINTAINER Robert Syme <robsyme@gmail.com>

RUN sed 's/main$/main universe/' -i /etc/apt/sources.list
ENV DEBIAN_FRONTEND noninteractive
RUN apt-get update -qq
RUN apt-get upgrade -qqy

# Get wget
RUN apt-get install -qqy wget

# Install ncbi-blast+
RUN wget ftp://ftp.ncbi.nih.gov/blast/executables/blast+/2.2.29/ncbi-blast-2.2.29+-x64-linux.tar.gz && \
    tar -xzvf *.tar.gz && \
    mv ncbi-blast-2.2.29+ /blast

# LINECOUNT of 82 works fine, but 83 throws a critical ncbi::CObject::ThrowNullPointerException()
ENV LINECOUNT 83
ADD https://raw.githubusercontent.com/KorfLab/CEGMA_v2/master/sample/sample.dna /
RUN head -n $LINECOUNT sample.dna > subject.fasta && \
    /blast/bin/makeblastdb -in subject.fasta -dbtype nucl -out subject && \
    echo ">foo" > query.fasta && \
    echo "gtatatttttacgtaatagcttctttgacatcaataagtatttgcctata" >> query.fasta
ENTRYPOINT /blast/bin/blastn -db subject -query query.fasta