>>> Unmerging sys-fs/device-mapper-1.02.10-r1...
/var/tmp/binpkgs/sys-fs/device-mapper-1.02.10-r1/temp/environment: line 257: syntax error near unexpected token `('
/var/tmp/binpkgs/sys-fs/device-mapper-1.02.10-r1/temp/environment: line 257: `      done <<(get_mounts);'
 *
 * ERROR: sys-fs/device-mapper-1.02.10-r1 failed.
 * Call stack:
 *               ebuild.sh, line 1641:  Called die
 * The specific snippet of code:
 *      preprocess_ebuild_env || \
 *              die "error processing environment"
 *  The die message:
 *   error processing environment
 *
 * If you need support, post the topmost build error, and the call stack if relevant. * A complete build log is located at '/var/tmp/binpkgs/sys-fs/device-mapper-1.02.10-r1/temp/build.log'.
 * The ebuild environment file is located at '/var/tmp/binpkgs/sys-fs/device-mapper-1.02.10-r1/temp/environment'.
 *
!!! FAILED prerm: 1
 * The 'prerm' phase of the 'sys-fs/device-mapper-1.02.10-r1' package has
 * failed with exit value 1. The problem occurred while executing the
 * ebuild located at '/var/db/pkg/sys-fs/device-mapper-1.02.10-r1/device-
 * mapper-1.02.10-r1.ebuild'. If necessary, manually remove the ebuild in
 * order to skip the execution of removal phases.