these 6 derivations will be built:
  /nix/store/ksygmw0asw6rb5dkgg319bqzkh7phdmj-crate-cc-1.4.5.tar.gz.drv
  /nix/store/9b45znsmw6aa4747xck5hp9y2c4xc49d-cc-1.4.5.drv
  /nix/store/gwclnxhv35nzfmapncahyl05da8fydyf-crate-find-msvc-tools-0.1.12.tar.gz.drv
  /nix/store/azv9xrd2qii4m0wpaggq417c3xa86ffj-find-msvc-tools-0.1.12.drv
  /nix/store/ck91z4nfqcv80cbc8h8z4p7lysd8l4m4-cargo-vendor-dir.drv
  /nix/store/b8qjr672lj5gnszps4dlk3ygy7ciknx1-nix-ld.drv
building '/nix/store/cqf646f1kvybfr1sw7d6p1l4nypza0h7-crate-cc-1.4.5.tar.gz.drv'
building '/nix/store/fzif0k3irb6nd2yasmqcl68fdq8qzvpz-crate-find-msvc-tools-0.1.12.tar.gz.drv'
crate-cc-1.4.5.tar.gz> 
crate-cc-1.4.5.tar.gz> trying https://crates.io/api/v1/crates/cc/1.4.5/download
crate-cc-1.4.5.tar.gz>   % Total    % Received % Xferd  Average Speed   Time    Time     Time  Current
crate-cc-1.4.5.tar.gz>                                  Dload  Upload   Total   Spent    Left  Speed
crate-find-msvc-tools-0.1.12.tar.gz> 
crate-find-msvc-tools-0.1.12.tar.gz> trying https://crates.io/api/v1/crates/find-msvc-tools/0.1.12/download
crate-find-msvc-tools-0.1.12.tar.gz>   % Total    % Received % Xferd  Average Speed   Time    Time     Time  Current
crate-find-msvc-tools-0.1.12.tar.gz>                                  Dload  Upload   Total   Spent    Left  Speed
crate-cc-1.4.5.tar.gz>   0     0    0     0    0     0      0      0 --:--:-- --:--:-- --:--:--     0
crate-cc-1.4.5.tar.gz> curl: (22) The requested URL returned error: 403
crate-cc-1.4.5.tar.gz> Warning: Problem (retrying all errors). Will retry in 1 second. 3 retries left.
crate-find-msvc-tools-0.1.12.tar.gz>   0     0    0     0    0     0      0      0 --:--:-- --:--:-- --:--:--     0
crate-find-msvc-tools-0.1.12.tar.gz> curl: (22) The requested URL returned error: 403
crate-find-msvc-tools-0.1.12.tar.gz> Warning: Problem (retrying all errors). Will retry in 1 second. 3 retries left.
crate-cc-1.4.5.tar.gz>   0     0    0     0    0     0      0      0 --:--:-- --:--:-- --:--:--     0
crate-cc-1.4.5.tar.gz> curl: (22) The requested URL returned error: 403
crate-cc-1.4.5.tar.gz> Warning: Problem (retrying all errors). Will retry in 2 seconds. 2 retries 
crate-cc-1.4.5.tar.gz> Warning: left.
crate-find-msvc-tools-0.1.12.tar.gz>   0     0    0     0    0     0      0      0 --:--:-- --:--:-- --:--:--     0
crate-find-msvc-tools-0.1.12.tar.gz> curl: (22) The requested URL returned error: 403
crate-find-msvc-tools-0.1.12.tar.gz> Warning: Problem (retrying all errors). Will retry in 2 seconds. 2 retries 
crate-find-msvc-tools-0.1.12.tar.gz> Warning: left.
crate-cc-1.4.5.tar.gz>   0     0    0     0    0     0      0      0 --:--:-- --:--:-- --:--:--     0
crate-cc-1.4.5.tar.gz> curl: (22) The requested URL returned error: 403
crate-cc-1.4.5.tar.gz> Warning: Problem (retrying all errors). Will retry in 4 seconds. 1 retry left.
crate-find-msvc-tools-0.1.12.tar.gz>   0     0    0     0    0     0      0      0 --:--:-- --:--:-- --:--:--     0
crate-find-msvc-tools-0.1.12.tar.gz> curl: (22) The requested URL returned error: 403
crate-find-msvc-tools-0.1.12.tar.gz> Warning: Problem (retrying all errors). Will retry in 4 seconds. 1 retry left.
crate-cc-1.4.5.tar.gz>   0     0    0     0    0     0      0      0 --:--:-- --:--:-- --:--:--     0
crate-cc-1.4.5.tar.gz> curl: (22) The requested URL returned error: 403
crate-find-msvc-tools-0.1.12.tar.gz>   0     0    0     0    0     0      0      0 --:--:-- --:--:-- --:--:--     0
crate-find-msvc-tools-0.1.12.tar.gz> curl: (22) The requested URL returned error: 403
crate-cc-1.4.5.tar.gz> error: cannot download crate-cc-1.4.5.tar.gz from any mirror
error: Cannot build '/nix/store/cqf646f1kvybfr1sw7d6p1l4nypza0h7-crate-cc-1.4.5.tar.gz.drv'.
       Reason: builder failed with exit code 1.
       Output paths:
         /nix/store/qkxqn39h5970rxwl2kwvci2diznnp6ss-crate-cc-1.4.5.tar.gz
       Last 17 log lines:
       >
       > trying https://crates.io/api/v1/crates/cc/1.4.5/download
       >   % Total    % Received % Xferd  Average Speed   Time    Time     Time  Current
       >                                  Dload  Upload   Total   Spent    Left  Speed
       >   0     0    0     0    0     0      0      0 --:--:-- --:--:-- --:--:--     0
       > curl: (22) The requested URL returned error: 403
       > Warning: Problem (retrying all errors). Will retry in 1 second. 3 retries left.
       >   0     0    0     0    0     0      0      0 --:--:-- --:--:-- --:--:--     0
       > curl: (22) The requested URL returned error: 403
       > Warning: Problem (retrying all errors). Will retry in 2 seconds. 2 retries
       > Warning: left.
       >   0     0    0     0    0     0      0      0 --:--:-- --:--:-- --:--:--     0
       > curl: (22) The requested URL returned error: 403
       > Warning: Problem (retrying all errors). Will retry in 4 seconds. 1 retry left.
       >   0     0    0     0    0     0      0      0 --:--:-- --:--:-- --:--:--     0
       > curl: (22) The requested URL returned error: 403
       > error: cannot download crate-cc-1.4.5.tar.gz from any mirror
       For full logs, run:
         nix log /nix/store/cqf646f1kvybfr1sw7d6p1l4nypza0h7-crate-cc-1.4.5.tar.gz.drv
error: build of resolved derivation '/nix/store/cqf646f1kvybfr1sw7d6p1l4nypza0h7-crate-cc-1.4.5.tar.gz.drv' failed
error: Cannot build '/nix/store/9b45znsmw6aa4747xck5hp9y2c4xc49d-cc-1.4.5.drv'.
       Reason: 1 dependency failed.
       Output paths:
         /nix/store/1ilc6q87m8gvb0al7w2y5m92vv45zfwl-cc-1.4.5
crate-find-msvc-tools-0.1.12.tar.gz> error: cannot download crate-find-msvc-tools-0.1.12.tar.gz from any mirror
error: Cannot build '/nix/store/fzif0k3irb6nd2yasmqcl68fdq8qzvpz-crate-find-msvc-tools-0.1.12.tar.gz.drv'.
       Reason: builder failed with exit code 1.
       Output paths:
         /nix/store/kgmzhc8bvnggpzabl0gz8b3fm1bk0v8c-crate-find-msvc-tools-0.1.12.tar.gz
       Last 17 log lines:
       >
       > trying https://crates.io/api/v1/crates/find-msvc-tools/0.1.12/download
       >   % Total    % Received % Xferd  Average Speed   Time    Time     Time  Current
       >                                  Dload  Upload   Total   Spent    Left  Speed
       >   0     0    0     0    0     0      0      0 --:--:-- --:--:-- --:--:--     0
       > curl: (22) The requested URL returned error: 403
       > Warning: Problem (retrying all errors). Will retry in 1 second. 3 retries left.
       >   0     0    0     0    0     0      0      0 --:--:-- --:--:-- --:--:--     0
       > curl: (22) The requested URL returned error: 403
       > Warning: Problem (retrying all errors). Will retry in 2 seconds. 2 retries
       > Warning: left.
       >   0     0    0     0    0     0      0      0 --:--:-- --:--:-- --:--:--     0
       > curl: (22) The requested URL returned error: 403
       > Warning: Problem (retrying all errors). Will retry in 4 seconds. 1 retry left.
       >   0     0    0     0    0     0      0      0 --:--:-- --:--:-- --:--:--     0
       > curl: (22) The requested URL returned error: 403
       > error: cannot download crate-find-msvc-tools-0.1.12.tar.gz from any mirror
       For full logs, run:
         nix log /nix/store/fzif0k3irb6nd2yasmqcl68fdq8qzvpz-crate-find-msvc-tools-0.1.12.tar.gz.drv
error: build of resolved derivation '/nix/store/fzif0k3irb6nd2yasmqcl68fdq8qzvpz-crate-find-msvc-tools-0.1.12.tar.gz.drv' failed
error: Cannot build '/nix/store/azv9xrd2qii4m0wpaggq417c3xa86ffj-find-msvc-tools-0.1.12.drv'.
       Reason: 1 dependency failed.
       Output paths:
         /nix/store/lpg6i99fn9vfn665q3q87xi0qdzz4327-find-msvc-tools-0.1.12
error: Cannot build '/nix/store/ck91z4nfqcv80cbc8h8z4p7lysd8l4m4-cargo-vendor-dir.drv'.
       Reason: 2 dependencies failed.
       Output paths:
         /nix/store/6d6k30683z8n0xagi11nmwv38l2lf2vd-cargo-vendor-dir
error: Cannot build '/nix/store/b8qjr672lj5gnszps4dlk3ygy7ciknx1-nix-ld.drv'.
       Reason: 1 dependency failed.
       Output paths:
         /nix/store/h1haghcikiy1l4fpmwxcmiavbkyd9851-nix-ld