This reduces the text output when an error is hit, removing the tracebacks for known errors. Tracebacks are for unknown/unexpected errors - if you expect an error, it's better to print out an actual error message. I've also made the patch applying a bit more verbose in case it helps, as it sometimes does.

Example after the changes:

```
Building the following packages: yt
[1/1] (thread 1) building yt
Error building yt. Printing build logs.
Hmm...  Looks like a unified diff to me...
The text leading up to this was:
--------------------------
|diff --git a/setupext.py b/setupext.py
|index 92c456bab..ce2c5fbad 100644
|--- a/setupext.py
|+++ b/setupext.py
--------------------------
patching file setupext.py
Using Plan A...
Hunk #1 FAILED at 57.
1 out of 1 hunk FAILED -- saving rejects to file setupext.py.rej
done
[2022-03-02 17:35:58] Building package yt...
ERROR: Patch /src/packages/yt/patches/skip-openmp.patch failed
[2022-03-02 17:36:14] Succeeded building package yt in 16.5 seconds.
ERROR: cancelling buildall
[1/1] (thread 1) failed yt in 16.76 s
make[1]: *** [Makefile:12: all] Error 1
make[1]: Leaving directory '/src/packages'
make: *** [Makefile:187: build/packages.json] Error 2
```

fix: better error messages, fewer tracebacks. This reduces the text output when an error is hit, removing the tracebacks for known errors. Tracebacks are for unknown/unexpected errors - if you expect an error, it's better to print out an actual error message. I've also made the patch applying a bit more verbose in case it helps, as it sometimes does.

Example after the changes:

```
Building the following packages: yt
[1/1] (thread 1) building yt
Error building yt. Printing build logs.
Hmm...  Looks like a unified diff to me...
The text leading up to this was:
--------------------------
|diff --git a/setupext.py b/setupext.py
|index 92c456bab..ce2c5fbad 100644
|--- a/setupext.py
|+++ b/setupext.py
--------------------------
patching file setupext.py
Using Plan A...
Hunk #1 FAILED at 57.
1 out of 1 hunk FAILED -- saving rejects to file setupext.py.rej
done
[2022-03-02 17:35:58] Building package yt...
ERROR: Patch /src/packages/yt/patches/skip-openmp.patch failed
[2022-03-02 17:36:14] Succeeded building package yt in 16.5 seconds.
ERROR: cancelling buildall
[1/1] (thread 1) failed yt in 16.76 s
make[1]: *** [Makefile:12: all] Error 1
make[1]: Leaving directory '/src/packages'
make: *** [Makefile:187: build/packages.json] Error 2
```

# setup: import numpy as np ; N = 100000 ; a = np.random.random(N); b = 0.1; c =1.1  # noqa
# run: log_likelihood(a, b, c)
# from: http://arogozhnikov.github.io/2015/09/08/SpeedBenchmarks.html
import numpy

# pythran export log_likelihood(float64[], float64, float64)


def log_likelihood(data, mean, sigma):
    s = (data - mean) ** 2 / (2 * (sigma**2))
    pdfs = numpy.exp(-s)
    pdfs /= numpy.sqrt(2 * numpy.pi) * sigma
    return numpy.log(pdfs).sum()

# setup: import numpy as np ; N = 100000 ; a = np.random.random(N); b = 0.1; c =1.1  # noqa
# run: log_likelihood(a, b, c)
# from: http://arogozhnikov.github.io/2015/09/08/SpeedBenchmarks.html
import numpy

# pythran export log_likelihood(float64[], float64, float64)


def log_likelihood(data, mean, sigma):
    s = (data - mean) ** 2 / (2 * (sigma**2))
    pdfs = numpy.exp(-s)
    pdfs /= numpy.sqrt(2 * numpy.pi) * sigma
    return numpy.log(pdfs).sum()
