<screen xmlns="http://www.scons.org/dbxsd/v1.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://www.scons.org/dbxsd/v1.0 http://www.scons.org/dbxsd/v1.0/scons.xsd">% <userinput>scons -Q --taskmastertrace=- prog</userinput>
Job.NewParallel._work(): [Thread:8286867328] Gained exclusive access
Job.NewParallel._work(): [Thread:8286867328] Starting search
Job.NewParallel._work(): [Thread:8286867328] Found 0 completed tasks to process
Job.NewParallel._work(): [Thread:8286867328] Searching for new tasks

Taskmaster: Looking for a node to evaluate
Taskmaster:     Considering node &lt;no_state   0   'prog'&gt; and its children:
Taskmaster:        &lt;no_state   0   'prog.o'&gt;
Taskmaster:      adjusted ref count: &lt;pending    1   'prog'&gt;, child 'prog.o'
Taskmaster:     Considering node &lt;no_state   0   'prog.o'&gt; and its children:
Taskmaster:        &lt;no_state   0   'prog.c'&gt;
Taskmaster:        &lt;no_state   0   'inc.h'&gt;
Taskmaster:      adjusted ref count: &lt;pending    1   'prog.o'&gt;, child 'prog.c'
Taskmaster:      adjusted ref count: &lt;pending    2   'prog.o'&gt;, child 'inc.h'
Taskmaster:     Considering node &lt;no_state   0   'prog.c'&gt; and its children:
Taskmaster: Evaluating &lt;pending    0   'prog.c'&gt;

Task.make_ready_current(): node &lt;pending    0   'prog.c'&gt;
Task.prepare():      node &lt;up_to_date 0   'prog.c'&gt;
Job.NewParallel._work(): [Thread:8286867328] Found internal task
Task.executed_with_callbacks(): node &lt;up_to_date 0   'prog.c'&gt;
Task.postprocess():  node &lt;up_to_date 0   'prog.c'&gt;
Task.postprocess():  removing &lt;up_to_date 0   'prog.c'&gt;
Task.postprocess():  adjusted parent ref count &lt;pending    1   'prog.o'&gt;
Job.NewParallel._work(): [Thread:8286867328] Searching for new tasks

Taskmaster: Looking for a node to evaluate
Taskmaster:     Considering node &lt;no_state   0   'inc.h'&gt; and its children:
Taskmaster: Evaluating &lt;pending    0   'inc.h'&gt;

Task.make_ready_current(): node &lt;pending    0   'inc.h'&gt;
Task.prepare():      node &lt;up_to_date 0   'inc.h'&gt;
Job.NewParallel._work(): [Thread:8286867328] Found internal task
Task.executed_with_callbacks(): node &lt;up_to_date 0   'inc.h'&gt;
Task.postprocess():  node &lt;up_to_date 0   'inc.h'&gt;
Task.postprocess():  removing &lt;up_to_date 0   'inc.h'&gt;
Task.postprocess():  adjusted parent ref count &lt;pending    0   'prog.o'&gt;
Job.NewParallel._work(): [Thread:8286867328] Searching for new tasks

Taskmaster: Looking for a node to evaluate
Taskmaster:     Considering node &lt;pending    0   'prog.o'&gt; and its children:
Taskmaster:        &lt;up_to_date 0   'prog.c'&gt;
Taskmaster:        &lt;up_to_date 0   'inc.h'&gt;
Taskmaster: Evaluating &lt;pending    0   'prog.o'&gt;

Task.make_ready_current(): node &lt;pending    0   'prog.o'&gt;
Task.prepare():      node &lt;executing  0   'prog.o'&gt;
Job.NewParallel._work(): [Thread:8286867328] Found task requiring execution
Job.NewParallel._work(): [Thread:8286867328] Executing task
Task.execute():      node &lt;executing  0   'prog.o'&gt;
cc -o prog.o -c -I. prog.c
Job.NewParallel._work(): [Thread:8286867328] Enqueueing executed task results
Job.NewParallel._work(): [Thread:8286867328] Gained exclusive access
Job.NewParallel._work(): [Thread:8286867328] Starting search
Job.NewParallel._work(): [Thread:8286867328] Found 1 completed tasks to process
Task.executed_with_callbacks(): node &lt;executing  0   'prog.o'&gt;
Task.postprocess():  node &lt;executed   0   'prog.o'&gt;
Task.postprocess():  removing &lt;executed   0   'prog.o'&gt;
Task.postprocess():  adjusted parent ref count &lt;pending    0   'prog'&gt;
Job.NewParallel._work(): [Thread:8286867328] Searching for new tasks

Taskmaster: Looking for a node to evaluate
Taskmaster:     Considering node &lt;pending    0   'prog'&gt; and its children:
Taskmaster:        &lt;executed   0   'prog.o'&gt;
Taskmaster: Evaluating &lt;pending    0   'prog'&gt;

Task.make_ready_current(): node &lt;pending    0   'prog'&gt;
Task.prepare():      node &lt;executing  0   'prog'&gt;
Job.NewParallel._work(): [Thread:8286867328] Found task requiring execution
Job.NewParallel._work(): [Thread:8286867328] Executing task
Task.execute():      node &lt;executing  0   'prog'&gt;
cc -o prog prog.o
Job.NewParallel._work(): [Thread:8286867328] Enqueueing executed task results
Job.NewParallel._work(): [Thread:8286867328] Gained exclusive access
Job.NewParallel._work(): [Thread:8286867328] Starting search
Job.NewParallel._work(): [Thread:8286867328] Found 1 completed tasks to process
Task.executed_with_callbacks(): node &lt;executing  0   'prog'&gt;
Task.postprocess():  node &lt;executed   0   'prog'&gt;
Job.NewParallel._work(): [Thread:8286867328] Searching for new tasks

Taskmaster: Looking for a node to evaluate
Taskmaster: No candidate anymore.
Job.NewParallel._work(): [Thread:8286867328] Found no task requiring execution, and have no jobs: marking complete
Job.NewParallel._work(): [Thread:8286867328] Gained exclusive access
Job.NewParallel._work(): [Thread:8286867328] Completion detected, breaking from main loop
</screen>
