【Xserver】brewコマンドで必ず失敗する。

前提・実現したいこと

プログラミング初心者です。
XserverとPython3.6でWebアプリを作成しようとしています。

macのターミナルからsshログインを行いbrewコマンドを使用すると、/bin/sh: warning: setlocale: LC_ALL: cannot change locale (C.UTF-8)が頻繁に出てきます。

これが原因なのか、brew install gitがうまく実行されません。
その他のbrew install python3やbrew install pipenvなども全て失敗します。

どうすれば良いのでしょうか？

エラーメッセージ

-bash-4.2$ brew install git
/home/<user_xxx>/.linuxbrew/Homebrew/Library/Homebrew/brew.sh: line 15: warning: setlocale: LC_ALL: cannot change locale (C.UTF-8): No such file or directory
/home/<user_xxx>/.linuxbrew/Homebrew/Library/Homebrew/brew.sh: line 15: warning: setlocale: LC_ALL: cannot change locale (C.UTF-8)
/bin/bash: warning: setlocale: LC_ALL: cannot change locale (C.UTF-8)
/home/<user_xxx>/.linuxbrew/Homebrew/Library/Homebrew/brew.sh: line 15: warning: setlocale: LC_ALL: cannot change locale (C.UTF-8): No such file or directory
/home/<user_xxx>/.linuxbrew/Homebrew/Library/Homebrew/brew.sh: line 15: warning: setlocale: LC_ALL: cannot change locale (C.UTF-8)
/bin/bash: warning: setlocale: LC_ALL: cannot change locale (C.UTF-8)
/home/<user_xxx>/.linuxbrew/Homebrew/Library/Homebrew/brew.sh: line 15: warning: setlocale: LC_ALL: cannot change locale (C.UTF-8): No such file or directory
/home/<user_xxx>/.linuxbrew/Homebrew/Library/Homebrew/brew.sh: line 15: warning: setlocale: LC_ALL: cannot change locale (C.UTF-8)
sh: warning: setlocale: LC_ALL: cannot change locale (C.UTF-8)
sh: warning: setlocale: LC_ALL: cannot change locale (C.UTF-8)

省略

==> make
Last 15 lines from /home/<user_xxx>/.cache/Homebrew/Logs/binutils/02.make:
/bin/sh: warning: setlocale: LC_ALL: cannot change locale (C.UTF-8)
rm -f libgold.a
ar cru libgold.a archive.o attributes.o binary.o common.o compressed_output.o copy-relocs.o cref.o defstd.o descriptors.o dirsearch.o dynobj.o dwarf_reader.o ehframe.o errors.o expression.o fileread.o gc.o gdb-index.o gold.o gold-threads.o icf.o incremental.o int_encoding.o layout.o mapfile.o merge.o nacl.o object.o options.o output.o parameters.o plugin.o readsyms.o reduced_debug_output.o reloc.o resolve.o script-sections.o script.o stringpool.o symtab.o target.o target-select.o timer.o version.o workqueue.o workqueue-threads.o  yyscript.o  
ranlib libgold.a
g++ -W -Wall    -D_LARGEFILE_SOURCE -D_FILE_OFFSET_BITS=64 -frandom-seed=dwp -I./../zlib -pthread -g -O2   -o dwp dwp.o libgold.a ../libiberty/libiberty.a     -L./../zlib -lz -ldl 
/bin/sh: warning: setlocale: LC_ALL: cannot change locale (C.UTF-8)
g++ -W -Wall    -D_LARGEFILE_SOURCE -D_FILE_OFFSET_BITS=64 -frandom-seed=ld-new -I./../zlib -pthread -g -O2   -o ld-new main.o i386.o x86_64.o sparc.o powerpc.o arm.o arm-reloc-property.o tilegx.o mips.o aarch64.o aarch64-reloc-property.o s390.o libgold.a ../libiberty/libiberty.a     -L./../zlib -lz -ldl 
g++ -W -Wall    -D_LARGEFILE_SOURCE -D_FILE_OFFSET_BITS=64 -frandom-seed=incremental-dump -I./../zlib -pthread -g -O2 -pthread  -o incremental-dump incremental-dump.o i386.o x86_64.o sparc.o powerpc.o arm.o arm-reloc-property.o tilegx.o mips.o aarch64.o aarch64-reloc-property.o s390.o libgold.a ../libiberty/libiberty.a    -L./../zlib -lz -ldl 
/bin/sh: warning: setlocale: LC_ALL: cannot change locale (C.UTF-8)
/bin/sh: warning: setlocale: LC_ALL: cannot change locale (C.UTF-8)
make[4]: Leaving directory `/tmp/binutils-20200804-9884-nqcya8/binutils-2.34/gold'
make[3]: Leaving directory `/tmp/binutils-20200804-9884-nqcya8/binutils-2.34/gold'
make[2]: Leaving directory `/tmp/binutils-20200804-9884-nqcya8/binutils-2.34/gold'
make[1]: Leaving directory `/tmp/binutils-20200804-9884-nqcya8/binutils-2.34'
make: *** [all] Error 2
sh: warning: setlocale: LC_ALL: cannot change locale (C.UTF-8)

READ THIS: https://docs.brew.sh/Troubleshooting