QML console.log() и console.debug() не пишут на консоль

Я использую Qt 5.6 на Fedora 23, и я заметил, что console.log() и console.debug() ничего не пишут на консоль. Мой пример кода:

import QtQuick 2.6
import QtQuick.Window 2.2

Window {
    visible: true

    Text {
        text: qsTr("Hello World")
        anchors.centerIn: parent

        Component.onCompleted: {
            console.warn("warn completed")
            console.log("log completed")
            console.error("error completed")
            console.debug("debug completed")
            console.exception("exception completed")
            console.info("info completed")
        }
    }
}

выводит на консоль:

QML debugging is enabled. Only use this in a safe environment.
qml: warn completed
qml: error completed
qml: exception completed
onCompleted (qrc:/main.qml:16)
qml: info completed

так warn, error, exception и info работают нормально. Что я делаю неправильно?

Изменить # 1: Проект только что создан, все мои источники:

main.cpp

#include <QGuiApplication>
#include <QQmlApplicationEngine>

int main(int argc, char *argv[])
{
    QGuiApplication app(argc, argv);

    QQmlApplicationEngine engine;
    engine.load(QUrl(QStringLiteral("qrc:/main.qml")));

    return app.exec();
}

project.pro

TEMPLATE = app

QT += qml quick
CONFIG += c++11

SOURCES += main.cpp

RESOURCES += qml.qrc

# Additional import path used to resolve QML modules in Qt Creator code model
QML_IMPORT_PATH =

# Default rules for deployment.
include(deployment.pri)

Изменить №2: Компилировать вывод из Qt Creator показывает, что нет QT_NO_DEBUG_OUTPUT, QT_NO_INFO_OUTPUT или QT_NO_WARNING_OUTPUT:

14:43:36: Running steps for project project...
14:43:36: Configuration unchanged, skipping qmake step.
14:43:36: Starting: "/usr/bin/make" 
g++ -c -pipe -g -std=gnu++0x -Wall -W -D_REENTRANT -fPIC -DQT_QML_DEBUG -DQT_QUICK_LIB -DQT_GUI_LIB -DQT_QML_LIB -DQT_NETWORK_LIB -DQT_CORE_LIB -I../project -I. -I../../Qt5.6.0/5.6/gcc_64/include -I../../Qt5.6.0/5.6/gcc_64/include/QtQuick -I../../Qt5.6.0/5.6/gcc_64/include/QtGui -I../../Qt5.6.0/5.6/gcc_64/include/QtQml -I../../Qt5.6.0/5.6/gcc_64/include/QtNetwork -I../../Qt5.6.0/5.6/gcc_64/include/QtCore -I. -I../../Qt5.6.0/5.6/gcc_64/mkspecs/linux-g++ -o main.o ../project/main.cpp
/home/krzys/Qt5.6.0/5.6/gcc_64/bin/rcc -name qml ../project/qml.qrc -o qrc_qml.cpp
g++ -c -pipe -g -std=gnu++0x -Wall -W -D_REENTRANT -fPIC -DQT_QML_DEBUG -DQT_QUICK_LIB -DQT_GUI_LIB -DQT_QML_LIB -DQT_NETWORK_LIB -DQT_CORE_LIB -I../project -I. -I../../Qt5.6.0/5.6/gcc_64/include -I../../Qt5.6.0/5.6/gcc_64/include/QtQuick -I../../Qt5.6.0/5.6/gcc_64/include/QtGui -I../../Qt5.6.0/5.6/gcc_64/include/QtQml -I../../Qt5.6.0/5.6/gcc_64/include/QtNetwork -I../../Qt5.6.0/5.6/gcc_64/include/QtCore -I. -I../../Qt5.6.0/5.6/gcc_64/mkspecs/linux-g++ -o qrc_qml.o qrc_qml.cpp
g++ -Wl,-z,origin -Wl,-rpath,\$ORIGIN -Wl,-rpath,/home/krzys/Qt5.6.0/5.6/gcc_64/lib -o project main.o qrc_qml.o   -L/home/krzys/Qt5.6.0/5.6/gcc_64/lib -lQt5Quick -lQt5Gui -lQt5Qml -lQt5Network -lQt5Core -lGL -lpthread 
14:43:37: The process "/usr/bin/make" exited normally.
14:43:37: Elapsed time: 00:01.

Ответ 1