11:37:13  jr@fm  ~/hcr  ⬡ v8.16.0  🦀 1.33.0-nightly   946-feature-chain-pair ✔ 
$ curl https://nixos.org/nix/install | sh

  % Total    % Received % Xferd  Average Speed   Time    Time     Time  Current
                                 Dload  Upload   Total   Spent    Left  Speed
100  2399  100  2399    0     0   1678      0  0:00:01  0:00:01 --:--:--  1678
downloading Nix 2.3.1 binary tarball for x86_64-linux from 'https://nixos.org/releases/nix/nix-2.3.1/nix-2.3.1-x86_64-linux.tar.xz' to '/tmp/nix-binary-tarball-unpack.oAuWTijQ0w'...
  % Total    % Received % Xferd  Average Speed   Time    Time     Time  Current
                                 Dload  Upload   Total   Spent    Left  Speed
100 15.2M  100 15.2M    0     0   178k      0  0:01:27  0:01:27 --:--:--  206k
Note: a multi-user installation is possible. See https://nixos.org/nix/manual/#sect-multi-user-installation
performing a single-user installation of Nix...
copying Nix to /nix/store................................
replacing old 'nix-2.3.1'
installing 'nix-2.3.1'
unpacking channels...
created 1 symlinks in user environment

Installation finished!  To ensure that the necessary environment
variables are set, either log in again, or type

  . /home/jr/.nix-profile/etc/profile.d/nix.sh

in your shell.

 11:41:24  jr@fm  ~/hcr  ⬡ v8.16.0  🦀 1.33.0-nightly   946-feature-chain-pair ✔  2m50s 
$ curl https://nixos.org/nix/install | sh


 11:43:18  ✘  jr@fm  ~/hcr  ⬡ v8.16.0  🦀 1.33.0-nightly   946-feature-chain-pair ✔ 
$ . /home/jr/.nix-profile/etc/profile.d/nix.sh

 11:43:22  jr@fm  ~/hcr  ⬡ v8.16.0  🦀 1.33.0-nightly   946-feature-chain-pair ✔ 
$ nh
these derivations will be built:
  /nix/store/59pxibmry9qgnpfj64pd8qhjjw8ii26j-sim2h_server-v0.0.38-alpha14-x86_64-generic-linux-gnu.tar.gz.drv
  /nix/store/h6n68sr4q6hkbsg1wzvnzmmkxzd3h22d-rust-std.drv
  /nix/store/hdsq1kkvf1gflb5yk1145i6qx0f6iq83-rust.drv
  /nix/store/hk4p1g9s2dr5w2x6xm22qd1c0f22ipjb-rust-std.drv
  /nix/store/7x70dgh5yj743lcdyahl9ywmf1518rqd-rust-1.38.0-nightly-2019-07-13-69656fa4c.drv
  /nix/store/gq192dvrhi35i2cmkgxxa8qxvmjbzpi5-hc.drv
  /nix/store/wzs4m2n7xs6kddx5b8v1y0wbphmrn7ij-trycp_server-v0.0.38-alpha14-x86_64-generic-linux-gnu.tar.gz.drv
  /nix/store/hzj1rmbm9a9yx2bz6cpwb5kw7bj5lfvv-trycp_server.drv
  /nix/store/rk12y7hz68b5p8ba294nhq07dvw18di0-sim2h_server.drv
these paths will be fetched (8.35 MiB download, 39.70 MiB unpacked):
  /nix/store/0lkwmky5msc33mcpvgp3gm612ksfl7w0-ncurses-6.1-20190112
  /nix/store/1k9nnnfp84vvz9z5s73sxjcq9gfzwqzd-bash-interactive-4.4-p23-man
  /nix/store/51pmv19h18w6rmdsj9krv0wbcqrg1324-bash-interactive-4.4-p23-doc
  /nix/store/ajk0xn31h195l04lgphaiyikh3zpima3-bash-interactive-4.4-p23-dev
  /nix/store/h929dfib6x1wv15wqaplkql2kd2r73rj-readline-7.0p5
  /nix/store/j724bbnm3kqhr0347xvs8qkxqbv6yi1r-bash-interactive-4.4-p23-info
  /nix/store/m7v6p7yxqyhnc4sxp49zp857cjamp996-bash-interactive-4.4-p23
  /nix/store/qb6k4hp7gk331x9fydw0w7qj4dv09bwz-glibc-2.27
  /nix/store/wd1jazzawjk4w1d31ism7fm7vdg4ma9l-bash-4.4-p23
copying path '/nix/store/51pmv19h18w6rmdsj9krv0wbcqrg1324-bash-interactive-4.4-p23-doc' from 'https://cache.nixos.org'...
copying path '/nix/store/j724bbnm3kqhr0347xvs8qkxqbv6yi1r-bash-interactive-4.4-p23-info' from 'https://cache.nixos.org'...
copying path '/nix/store/1k9nnnfp84vvz9z5s73sxjcq9gfzwqzd-bash-interactive-4.4-p23-man' from 'https://cache.nixos.org'...
copying path '/nix/store/qb6k4hp7gk331x9fydw0w7qj4dv09bwz-glibc-2.27' from 'https://cache.nixos.org'...
building '/nix/store/h6n68sr4q6hkbsg1wzvnzmmkxzd3h22d-rust-std.drv'...
/nix/store/1zpvvxqxypyx2hlsg4zm7jdh1dc7z7cz-stdenv-linux/setup: line 813: /build/env-vars: No such file or directory
unpacking sources
/nix/store/1zpvvxqxypyx2hlsg4zm7jdh1dc7z7cz-stdenv-linux/setup: line 813: /build/env-vars: No such file or directory
unpacking source archive /nix/store/08px0migjsmcf0rh5zg8c8nqqjwm7da0-rust-std-nightly-wasm32-unknown-unknown.tar.xz
source root is rust-std-nightly-wasm32-unknown-unknown
find: '/build/..': No such file or directory
patching sources
/nix/store/1zpvvxqxypyx2hlsg4zm7jdh1dc7z7cz-stdenv-linux/setup: line 813: /build/env-vars: No such file or directory
configuring
/nix/store/1zpvvxqxypyx2hlsg4zm7jdh1dc7z7cz-stdenv-linux/setup: line 813: /build/env-vars: No such file or directory
no configure script, doing nothing
building
/nix/store/1zpvvxqxypyx2hlsg4zm7jdh1dc7z7cz-stdenv-linux/setup: line 813: /build/env-vars: No such file or directory
no Makefile, doing nothing
installing
/nix/store/1zpvvxqxypyx2hlsg4zm7jdh1dc7z7cz-stdenv-linux/setup: line 813: /build/env-vars: No such file or directory
patching script interpreter paths in install.sh
install.sh: interpreter directive changed from "/bin/bash" to "/nix/store/506nnycf7nk22x7n07mjjjl2g8nifpda-bash-4.4-p23/bin/bash"
mktemp: failed to create file via template '/build/tmp.XXXXXXXXXX': No such file or directory
builder for '/nix/store/h6n68sr4q6hkbsg1wzvnzmmkxzd3h22d-rust-std.drv' failed with exit code 1
cannot build derivation '/nix/store/7x70dgh5yj743lcdyahl9ywmf1518rqd-rust-1.38.0-nightly-2019-07-13-69656fa4c.drv': 1 dependencies couldn't be built
copying path '/nix/store/wd1jazzawjk4w1d31ism7fm7vdg4ma9l-bash-4.4-p23' from 'https://cache.nixos.org'...
error: build of '/nix/store/5fb252jldd4fa86xp95v39l6l2ab6gsd-bash-interactive-4.4-p23.drv', '/nix/store/7x70dgh5yj743lcdyahl9ywmf1518rqd-rust-1.38.0-nightly-2019-07-13-69656fa4c.drv', '/nix/store/gq192dvrhi35i2cmkgxxa8qxvmjbzpi5-hc.drv', '/nix/store/hzj1rmbm9a9yx2bz6cpwb5kw7bj5lfvv-trycp_server.drv', '/nix/store/rk12y7hz68b5p8ba294nhq07dvw18di0-sim2h_server.drv' failed