go fmt
The new `go fmt` adds `//go:build` lines (https://golang.org/doc/go1.17#tools). Signed-off-by: Akihiro Suda <akihiro.suda.cz@hco.ntt.co.jp>
fix: #5130 Signed-off-by: Wei Fu <fuweid89@gmail.com>
When using a multi-container shim, the fifo of the 2nd to Nth container will not be opened when the ctx is done. This will cause an `ErrReadClosed` that can be ignored. Signed-off-by: Li Yuxuan <liyuxuan04@baidu.com>