these 4 derivations will be built:
  /nix/store/0flk8a51q984z1zx7zm1s20s00l41w9k-cargo-nix-plugin-retry-test-503.drv
  /nix/store/5x91xdpqmz53py94vaa5hyvpp0la3h81-cargo-nix-plugin-retry-test-429.drv
  /nix/store/jdwbhn4vjax26q1ifn3ikac5nnbw4fh9-cargo-nix-plugin-retry-test-corrupt-body.drv
  /nix/store/ay16n95w9wgv7nql8sgc66ikcd4a9kdc-cargo-nix-plugin-retry-tests.drv
building '/nix/store/5x91xdpqmz53py94vaa5hyvpp0la3h81-cargo-nix-plugin-retry-test-429.drv' on 'ssh-ng://nix@jamie'
building '/nix/store/0flk8a51q984z1zx7zm1s20s00l41w9k-cargo-nix-plugin-retry-test-503.drv' on 'ssh-ng://nix@jamie'
building '/nix/store/jdwbhn4vjax26q1ifn3ikac5nnbw4fh9-cargo-nix-plugin-retry-test-corrupt-body.drv' on 'ssh-ng://nix@jamie'
building '/nix/store/5x91xdpqmz53py94vaa5hyvpp0la3h81-cargo-nix-plugin-retry-test-429.drv'
cargo-nix-plugin-retry-test-429> fake sparse index (429) at http://127.0.0.1:35987/
building '/nix/store/0flk8a51q984z1zx7zm1s20s00l41w9k-cargo-nix-plugin-retry-test-503.drv'
cargo-nix-plugin-retry-test-503> fake sparse index (503) at http://127.0.0.1:39543/
building '/nix/store/jdwbhn4vjax26q1ifn3ikac5nnbw4fh9-cargo-nix-plugin-retry-test-corrupt-body.drv'
error: interrupted by the user