Linker error after using `cargo-vcpkg` for package management

[nouritsu]

My Cargo.toml file looks like this -

[package.metadata.vcpkg]
git = "https://github.com/microsoft/vcpkg"
rev = "master"
dependencies = ["libmagic"]

cargo vcpkg build executes sucessfully -

PS C:\code-projects\rs-scanner> cargo vcpkg build
    Fetching vcpkg
    Checkout rev master
  Installing libmagic libmagic
    Finished in 6.84

However when I try to build my package using cargo build or cargo run, it gives me the following linker error -

error: linking with `link.exe` failed: exit code: 1181
  |
  = note: "C:\\Program Files\\Microsoft Visual Studio\\2022\\Community\\VC\\Tools\\MSVC\\14.36.32532\\bin\\HostX64\\x64\\link.exe" "/NOLOGO" "C:\\Users\\Aneesh\\AppData\\Local\\Temp\\rustc1GziA8\\symbols.o" "C:\\code-projects\\rs-scanner\\target\\debug\\deps\\rs_scanner.12wj6v3cbmco69bl.rcgu.o" "C:\\code-projects\\rs-scanner\\target\\debug\\deps\\rs_scanner.1jq1n2n3hcev1vk5.rcgu.o" "C:\\code-projects\\rs-scanner\\target\\debug\\deps\\rs_scanner.2i405mqxvi87pu41.rcgu.o" "C:\\code-projects\\rs-scanner\\target\\debug\\deps\\rs_scanner.2nstv5n8hntivlu1.rcgu.o" "C:\\code-projects\\rs-scanner\\target\\debug\\deps\\rs_scanner.2srxq9yqfwvm0hq9.rcgu.o" "C:\\code-projects\\rs-scanner\\target\\debug\\deps\\rs_scanner.35h364jj1wwy4bhl.rcgu.o" "C:\\code-projects\\rs-scanner\\target\\debug\\deps\\rs_scanner.3nleu2npeusephn9.rcgu.o" "C:\\code-projects\\rs-scanner\\target\\debug\\deps\\rs_scanner.3xozriqfekg4oetq.rcgu.o" "C:\\code-projects\\rs-scanner\\target\\debug\\deps\\rs_scanner.48wpoluwdzc6265j.rcgu.o" "C:\\code-projects\\rs-scanner\\target\\debug\\deps\\rs_scanner.4i2nqgpim5wa2yjm.rcgu.o" "C:\\code-projects\\rs-scanner\\target\\debug\\deps\\rs_scanner.4w57m2bhklatelce.rcgu.o" "C:\\code-projects\\rs-scanner\\target\\debug\\deps\\rs_scanner.4y82q285kfexjlu3.rcgu.o" "C:\\code-projects\\rs-scanner\\target\\debug\\deps\\rs_scanner.5fuuxk5naeuvtdhj.rcgu.o" "C:\\code-projects\\rs-scanner\\target\\debug\\deps\\rs_scanner.5pc9kk9iu11ma55.rcgu.o" "C:\\code-projects\\rs-scanner\\target\\debug\\deps\\rs_scanner.71hxi9cbswy263i.rcgu.o" "C:\\code-projects\\rs-scanner\\target\\debug\\deps\\rs_scanner.7lye18ybz6rc7d8.rcgu.o" "C:\\code-projects\\rs-scanner\\target\\debug\\deps\\rs_scanner.b2d2vuxo1c1epy9.rcgu.o" "C:\\code-projects\\rs-scanner\\target\\debug\\deps\\rs_scanner.bvj7ely32tlvvk3.rcgu.o" "C:\\code-projects\\rs-scanner\\target\\debug\\deps\\rs_scanner.i2nwwn0ulrpspug.rcgu.o" "C:\\code-projects\\rs-scanner\\target\\debug\\deps\\rs_scanner.3jak6lzn2sjhax7a.rcgu.o" "/LIBPATH:C:\\code-projects\\rs-scanner\\target\\debug\\deps" "/LIBPATH:C:\\Users\\Aneesh\\.rustup\\toolchains\\stable-x86_64-pc-windows-msvc\\lib\\rustlib\\x86_64-pc-windows-msvc\\lib" "C:\\code-projects\\rs-scanner\\target\\debug\\deps\\libmagic-f91a07325f416cd0.rlib" "C:\\code-projects\\rs-scanner\\target\\debug\\deps\\libthiserror-a8e3d939053c7cbd.rlib" "C:\\code-projects\\rs-scanner\\target\\debug\\deps\\liberrno-3b003e930435be1f.rlib" "C:\\code-projects\\rs-scanner\\target\\debug\\deps\\libbitflags-238d36ea99b67de1.rlib" "C:\\code-projects\\rs-scanner\\target\\debug\\deps\\libmagic_sys-3baaa91aef970a84.rlib" "C:\\code-projects\\rs-scanner\\target\\debug\\deps\\liblibc-4341ae54cebc8bf7.rlib" "C:\\code-projects\\rs-scanner\\target\\debug\\deps\\libsnafu-80a83afec7c1409c.rlib" "C:\\code-projects\\rs-scanner\\target\\debug\\deps\\libdoc_comment-c5c1ad394bc426e5.rlib" "C:\\code-projects\\rs-scanner\\target\\debug\\deps\\libwalkdir-b478d11cf8fe41bf.rlib" "C:\\code-projects\\rs-scanner\\target\\debug\\deps\\libsame_file-ec9c869d437a9abc.rlib" "C:\\code-projects\\rs-scanner\\target\\debug\\deps\\libwinapi_util-75bfacdb1adbb8c6.rlib" "C:\\code-projects\\rs-scanner\\target\\debug\\deps\\libwinapi-d303619577d28ccc.rlib" "C:\\code-projects\\rs-scanner\\target\\debug\\deps\\librayon-a3ec2a1cd875fb3e.rlib" "C:\\code-projects\\rs-scanner\\target\\debug\\deps\\librayon_core-8a1afbd866efc3fe.rlib" "C:\\code-projects\\rs-scanner\\target\\debug\\deps\\libnum_cpus-7e9a3c2c49a19d10.rlib" "C:\\code-projects\\rs-scanner\\target\\debug\\deps\\libcrossbeam_deque-37df0e2c80518ba0.rlib" "C:\\code-projects\\rs-scanner\\target\\debug\\deps\\libcrossbeam_epoch-3ed081d8c7288141.rlib" "C:\\code-projects\\rs-scanner\\target\\debug\\deps\\libmemoffset-2bfda58f6c387739.rlib" "C:\\code-projects\\rs-scanner\\target\\debug\\deps\\libscopeguard-2f60b7f0eb7b7422.rlib" "C:\\code-projects\\rs-scanner\\target\\debug\\deps\\libcrossbeam_channel-dcc8c793356e2f36.rlib" "C:\\code-projects\\rs-scanner\\target\\debug\\deps\\libcrossbeam_utils-20f55305a540803b.rlib" "C:\\code-projects\\rs-scanner\\target\\debug\\deps\\libcfg_if-5ddb140102fcb6a2.rlib" "C:\\code-projects\\rs-scanner\\target\\debug\\deps\\libeither-07d6d1ee9e96223b.rlib" "C:\\Users\\Aneesh\\.rustup\\toolchains\\stable-x86_64-pc-windows-msvc\\lib\\rustlib\\x86_64-pc-windows-msvc\\lib\\libstd-391022a4250a8b9a.rlib" "C:\\Users\\Aneesh\\.rustup\\toolchains\\stable-x86_64-pc-windows-msvc\\lib\\rustlib\\x86_64-pc-windows-msvc\\lib\\libpanic_unwind-3069c74fd845ecc2.rlib" "C:\\Users\\Aneesh\\.rustup\\toolchains\\stable-x86_64-pc-windows-msvc\\lib\\rustlib\\x86_64-pc-windows-msvc\\lib\\librustc_demangle-cae8325b8f11cb55.rlib" "C:\\Users\\Aneesh\\.rustup\\toolchains\\stable-x86_64-pc-windows-msvc\\lib\\rustlib\\x86_64-pc-windows-msvc\\lib\\libstd_detect-6ecbb4a24be3ec33.rlib" "C:\\Users\\Aneesh\\.rustup\\toolchains\\stable-x86_64-pc-windows-msvc\\lib\\rustlib\\x86_64-pc-windows-msvc\\lib\\libhashbrown-7cef55517a70b408.rlib" "C:\\Users\\Aneesh\\.rustup\\toolchains\\stable-x86_64-pc-windows-msvc\\lib\\rustlib\\x86_64-pc-windows-msvc\\lib\\libminiz_oxide-d1e72b1788c7e8f6.rlib" "C:\\Users\\Aneesh\\.rustup\\toolchains\\stable-x86_64-pc-windows-msvc\\lib\\rustlib\\x86_64-pc-windows-msvc\\lib\\libadler-65d80753bac4b1a6.rlib" "C:\\Users\\Aneesh\\.rustup\\toolchains\\stable-x86_64-pc-windows-msvc\\lib\\rustlib\\x86_64-pc-windows-msvc\\lib\\librustc_std_workspace_alloc-932a6231bea08890.rlib" "C:\\Users\\Aneesh\\.rustup\\toolchains\\stable-x86_64-pc-windows-msvc\\lib\\rustlib\\x86_64-pc-windows-msvc\\lib\\libunwind-04ed514427316340.rlib" "C:\\Users\\Aneesh\\.rustup\\toolchains\\stable-x86_64-pc-windows-msvc\\lib\\rustlib\\x86_64-pc-windows-msvc\\lib\\libcfg_if-9b75e26b1d0a074f.rlib" "C:\\Users\\Aneesh\\.rustup\\toolchains\\stable-x86_64-pc-windows-msvc\\lib\\rustlib\\x86_64-pc-windows-msvc\\lib\\liblibc-95c2795d82b7b742.rlib" "C:\\Users\\Aneesh\\.rustup\\toolchains\\stable-x86_64-pc-windows-msvc\\lib\\rustlib\\x86_64-pc-windows-msvc\\lib\\liballoc-1bf02ac2d8cdb80a.rlib" "C:\\Users\\Aneesh\\.rustup\\toolchains\\stable-x86_64-pc-windows-msvc\\lib\\rustlib\\x86_64-pc-windows-msvc\\lib\\librustc_std_workspace_core-117dfa1fe8688bcf.rlib" "C:\\Users\\Aneesh\\.rustup\\toolchains\\stable-x86_64-pc-windows-msvc\\lib\\rustlib\\x86_64-pc-windows-msvc\\lib\\libcore-9ac5797c0b4842d0.rlib" "C:\\Users\\Aneesh\\.rustup\\toolchains\\stable-x86_64-pc-windows-msvc\\lib\\rustlib\\x86_64-pc-windows-msvc\\lib\\libcompiler_builtins-ad271357e078d260.rlib" "magic.lib" "legacy_stdio_definitions.lib" "advapi32.lib" "cfgmgr32.lib" "gdi32.lib" "kernel32.lib" "msimg32.lib" "opengl32.lib" "user32.lib" "winspool.lib" "kernel32.lib" "advapi32.lib" "userenv.lib" "kernel32.lib" "ws2_32.lib" "bcrypt.lib" "ntdll.lib" "msvcrt.lib" "legacy_stdio_definitions.lib" "/NXCOMPAT" "/LIBPATH:C:\\Users\\Aneesh\\.rustup\\toolchains\\stable-x86_64-pc-windows-msvc\\lib\\rustlib\\x86_64-pc-windows-msvc\\lib" "/OUT:C:\\code-projects\\rs-scanner\\target\\debug\\deps\\rs_scanner.exe" "/OPT:REF,NOICF" "/DEBUG" "/NATVIS:C:\\Users\\Aneesh\\.rustup\\toolchains\\stable-x86_64-pc-windows-msvc\\lib\\rustlib\\etc\\intrinsic.natvis" "/NATVIS:C:\\Users\\Aneesh\\.rustup\\toolchains\\stable-x86_64-pc-windows-msvc\\lib\\rustlib\\etc\\liballoc.natvis" "/NATVIS:C:\\Users\\Aneesh\\.rustup\\toolchains\\stable-x86_64-pc-windows-msvc\\lib\\rustlib\\etc\\libcore.natvis" "/NATVIS:C:\\Users\\Aneesh\\.rustup\\toolchains\\stable-x86_64-pc-windows-msvc\\lib\\rustlib\\etc\\libstd.natvis"
  = note: LINK : fatal error LNK1181: cannot open input file 'magic.lib'

My vcpkg folder (created by cargo-vcpkg) is at C:\code-projects\rs-scanner\vcpkg and the environment variable VCPKG_HOME has been set to the same. How do I fix this error?

Things I have tried -

• Rebuilding packages
• Running vcpkg integrate install manually in the created folder

[robo9k]

After some fiddling I think I can reproduce this in a Windows 10 VM:

PS C:\Users\anon\Desktop\project> cargo build
   Compiling magic-sys v0.3.0 (C:\Users\anon\Desktop\rust-magic-sys)
   Compiling thiserror-impl v1.0.47
   Compiling thiserror v1.0.47
   Compiling magic v0.13.0
   Compiling project v0.1.0 (C:\Users\anon\Desktop\project)
error: linking with `link.exe` failed: exit code: 1181
  |
  = note: "C:\\Program Files\\Microsoft Visual Studio\\2022\\Community\\VC\\Tools\\MSVC\\14.37.32822\\bin\\HostX64\\x64\\link.exe" "/NOLOGO" "C:\\Users\\anon\\AppData\\Local\\Temp\\rustcUPaWBo\\symbols.o" "C:\\Users\\anon\\Desktop\\project\\target\\debug\\deps\\project.18k7v26q6k3nuzfa.rcgu.o" "C:\\Users\\anon\\Desktop\\project\\target\\debug\\deps\\project.1ba5xpyci7cyj002.rcgu.o" "C:\\Users\\anon\\Desktop\\project\\target\\debug\\deps\\project.1bfhrxkn6f9hgnha.rcgu.o" "C:\\Users\\anon\\Desktop\\project\\target\\debug\\deps\\project.1c7065kdn4fun3os.rcgu.o" "C:\\Users\\anon\\Desktop\\project\\target\\debug\\deps\\project.1rf8k80ilsa4aqqb.rcgu.o" "C:\\Users\\anon\\Desktop\\project\\target\\debug\\deps\\project.1vrbqq568yb03s5j.rcgu.o" "C:\\Users\\anon\\Desktop\\project\\target\\debug\\deps\\project.1ybw15o654z4nupk.rcgu.o" "C:\\Users\\anon\\Desktop\\project\\target\\debug\\deps\\project.27x24l1ea5ntnkdk.rcgu.o" "C:\\Users\\anon\\Desktop\\project\\target\\debug\\deps\\project.2b0jzxu07wgama8q.rcgu.o" "C:\\Users\\anon\\Desktop\\project\\target\\debug\\deps\\project.2b67wkzkd8vosjg1.rcgu.o" "C:\\Users\\anon\\Desktop\\project\\target\\debug\\deps\\project.2rf31zlfxtud9p8r.rcgu.o" "C:\\Users\\anon\\Desktop\\project\\target\\debug\\deps\\project.2tthl9e1pji8i9bk.rcgu.o" "C:\\Users\\anon\\Desktop\\project\\target\\debug\\deps\\project.30pqak9xocnwcour.rcgu.o" "C:\\Users\\anon\\Desktop\\project\\target\\debug\\deps\\project.312tg5xe4kfnj2no.rcgu.o" "C:\\Users\\anon\\Desktop\\project\\target\\debug\\deps\\project.3az2evtq7xl7j1xf.rcgu.o" "C:\\Users\\anon\\Desktop\\project\\target\\debug\\deps\\project.3h88ejvyfa7wj6ng.rcgu.o" "C:\\Users\\anon\\Desktop\\project\\target\\debug\\deps\\project.3mz0fsuap4qsrg2p.rcgu.o" "C:\\Users\\anon\\Desktop\\project\\target\\debug\\deps\\project.3x5tq2gpibxumeto.rcgu.o" "C:\\Users\\anon\\Desktop\\project\\target\\debug\\deps\\project.47dg6j11y4ro56xz.rcgu.o" "C:\\Users\\anon\\Desktop\\project\\target\\debug\\deps\\project.4857j1lk6juydddu.rcgu.o" "C:\\Users\\anon\\Desktop\\project\\target\\debug\\deps\\project.4988gudz77fs6a3c.rcgu.o" "C:\\Users\\anon\\Desktop\\project\\target\\debug\\deps\\project.498bi8ck0rg5fhj5.rcgu.o" "C:\\Users\\anon\\Desktop\\project\\target\\debug\\deps\\project.4ex7530k2ow9z6d3.rcgu.o" "C:\\Users\\anon\\Desktop\\project\\target\\debug\\deps\\project.4h3t0x9qr24t2uas.rcgu.o" "C:\\Users\\anon\\Desktop\\project\\target\\debug\\deps\\project.4npinqio8kso9tta.rcgu.o" "C:\\Users\\anon\\Desktop\\project\\target\\debug\\deps\\project.4s94zejz2nsqfoks.rcgu.o" "C:\\Users\\anon\\Desktop\\project\\target\\debug\\deps\\project.58h1eghnaiyzltqn.rcgu.o" "C:\\Users\\anon\\Desktop\\project\\target\\debug\\deps\\project.5b3fpmlwlcqc1bn4.rcgu.o" "C:\\Users\\anon\\Desktop\\project\\target\\debug\\deps\\project.5brlyvgxvp8ggvbn.rcgu.o" "C:\\Users\\anon\\Desktop\\project\\target\\debug\\deps\\project.5fgnq7i6d6ul6h77.rcgu.o" "C:\\Users\\anon\\Desktop\\project\\target\\debug\\deps\\project.5fmyebqtye5145ru.rcgu.o" "C:\\Users\\anon\\Desktop\\project\\target\\debug\\deps\\project.6iirh65760odrn4.rcgu.o" "C:\\Users\\anon\\Desktop\\project\\target\\debug\\deps\\project.d6lez2bl9um2h2s.rcgu.o" "C:\\Users\\anon\\Desktop\\project\\target\\debug\\deps\\project.go6fina1ctfujq1.rcgu.o" "C:\\Users\\anon\\Desktop\\project\\target\\debug\\deps\\project.m2cd2155938tjwg.rcgu.o" "C:\\Users\\anon\\Desktop\\project\\target\\debug\\deps\\project.mlzgdryz8dd3f29.rcgu.o" "C:\\Users\\anon\\Desktop\\project\\target\\debug\\deps\\project.mm1gcx1u647gufh.rcgu.o" "C:\\Users\\anon\\Desktop\\project\\target\\debug\\deps\\project.qj06i8rjao4l86x.rcgu.o" "C:\\Users\\anon\\Desktop\\project\\target\\debug\\deps\\project.x2yszz8gwchwphb.rcgu.o" "C:\\Users\\anon\\Desktop\\project\\target\\debug\\deps\\project.136e076vj5gzg32a.rcgu.o" "/LIBPATH:C:\\Users\\anon\\Desktop\\project\\target\\debug\\deps" "/LIBPATH:C:\\Users\\anon\\.rustup\\toolchains\\stable-x86_64-pc-windows-msvc\\lib\\rustlib\\x86_64-pc-windows-msvc\\lib" "C:\\Users\\anon\\Desktop\\project\\target\\debug\\deps\\libmagic-d631afe9fd16860e.rlib" "C:\\Users\\anon\\Desktop\\project\\target\\debug\\deps\\libthiserror-9bc9a8cb7c7db614.rlib" "C:\\Users\\anon\\Desktop\\project\\target\\debug\\deps\\liberrno-f2a59a8164246d20.rlib" "C:\\Users\\anon\\Desktop\\project\\target\\debug\\deps\\libwinapi-3fd641a184336611.rlib" "C:\\Users\\anon\\Desktop\\project\\target\\debug\\deps\\libbitflags-93a6ef986c1a7a15.rlib" "C:\\Users\\anon\\Desktop\\project\\target\\debug\\deps\\libmagic_sys-dd48239567202748.rlib" "C:\\Users\\anon\\Desktop\\project\\target\\debug\\deps\\liblibc-c48d00b97b5250c6.rlib" "C:\\Users\\anon\\.rustup\\toolchains\\stable-x86_64-pc-windows-msvc\\lib\\rustlib\\x86_64-pc-windows-msvc\\lib\\libstd-0f357f0f8e8eb48f.rlib" "C:\\Users\\anon\\.rustup\\toolchains\\stable-x86_64-pc-windows-msvc\\lib\\rustlib\\x86_64-pc-windows-msvc\\lib\\libpanic_unwind-57325150de1d69ac.rlib" "C:\\Users\\anon\\.rustup\\toolchains\\stable-x86_64-pc-windows-msvc\\lib\\rustlib\\x86_64-pc-windows-msvc\\lib\\librustc_demangle-7a221d01d4c27fb2.rlib" "C:\\Users\\anon\\.rustup\\toolchains\\stable-x86_64-pc-windows-msvc\\lib\\rustlib\\x86_64-pc-windows-msvc\\lib\\libstd_detect-7bffc6b402bc9229.rlib" "C:\\Users\\anon\\.rustup\\toolchains\\stable-x86_64-pc-windows-msvc\\lib\\rustlib\\x86_64-pc-windows-msvc\\lib\\libhashbrown-3fd39796b57f4908.rlib" "C:\\Users\\anon\\.rustup\\toolchains\\stable-x86_64-pc-windows-msvc\\lib\\rustlib\\x86_64-pc-windows-msvc\\lib\\librustc_std_workspace_alloc-8572e8a98839f6d6.rlib" "C:\\Users\\anon\\.rustup\\toolchains\\stable-x86_64-pc-windows-msvc\\lib\\rustlib\\x86_64-pc-windows-msvc\\lib\\libminiz_oxide-6e930372a69395c9.rlib" "C:\\Users\\anon\\.rustup\\toolchains\\stable-x86_64-pc-windows-msvc\\lib\\rustlib\\x86_64-pc-windows-msvc\\lib\\libadler-ad696ea66c589e9d.rlib" "C:\\Users\\anon\\.rustup\\toolchains\\stable-x86_64-pc-windows-msvc\\lib\\rustlib\\x86_64-pc-windows-msvc\\lib\\libunwind-0a3e7125dc6e7fef.rlib" "C:\\Users\\anon\\.rustup\\toolchains\\stable-x86_64-pc-windows-msvc\\lib\\rustlib\\x86_64-pc-windows-msvc\\lib\\libcfg_if-7d7ae0874b44dfcc.rlib" "C:\\Users\\anon\\.rustup\\toolchains\\stable-x86_64-pc-windows-msvc\\lib\\rustlib\\x86_64-pc-windows-msvc\\lib\\liblibc-2e82681b8e87518e.rlib" "C:\\Users\\anon\\.rustup\\toolchains\\stable-x86_64-pc-windows-msvc\\lib\\rustlib\\x86_64-pc-windows-msvc\\lib\\liballoc-5ed5a0d27d7423da.rlib" "C:\\Users\\anon\\.rustup\\toolchains\\stable-x86_64-pc-windows-msvc\\lib\\rustlib\\x86_64-pc-windows-msvc\\lib\\librustc_std_workspace_core-e970d604d303b37d.rlib" "C:\\Users\\anon\\.rustup\\toolchains\\stable-x86_64-pc-windows-msvc\\lib\\rustlib\\x86_64-pc-windows-msvc\\lib\\libcore-e73f27a013927059.rlib" "C:\\Users\\anon\\.rustup\\toolchains\\stable-x86_64-pc-windows-msvc\\lib\\rustlib\\x86_64-pc-windows-msvc\\lib\\libcompiler_builtins-fbb34b1faced902f.rlib" "advapi32.lib" "cfgmgr32.lib" "kernel32.lib" "user32.lib" "magic.lib" "legacy_stdio_definitions.lib" 
"kernel32.lib" "advapi32.lib" "bcrypt.lib" "kernel32.lib" "ntdll.lib" "userenv.lib" "ws2_32.lib" "kernel32.lib" "ws2_32.lib" "kernel32.lib" "msvcrt.lib" "/NXCOMPAT" "/LIBPATH:C:\\Users\\anon\\.rustup\\toolchains\\stable-x86_64-pc-windows-msvc\\lib\\rustlib\\x86_64-pc-windows-msvc\\lib" "/OUT:C:\\Users\\anon\\Desktop\\project\\target\\debug\\deps\\project.exe" "/OPT:REF,NOICF" "/DEBUG" "/NATVIS:C:\\Users\\anon\\.rustup\\toolchains\\stable-x86_64-pc-windows-msvc\\lib\\rustlib\\etc\\intrinsic.natvis" "/NATVIS:C:\\Users\\anon\\.rustup\\toolchains\\stable-x86_64-pc-windows-msvc\\lib\\rustlib\\etc\\liballoc.natvis" "/NATVIS:C:\\Users\\anon\\.rustup\\toolchains\\stable-x86_64-pc-windows-msvc\\lib\\rustlib\\etc\\libcore.natvis" "/NATVIS:C:\\Users\\anon\\.rustup\\toolchains\\stable-x86_64-pc-windows-msvc\\lib\\rustlib\\etc\\libstd.natvis"
  = note: LINK : fatal error LNK1181: cannot open input file 'magic.lib'


error: could not compile `project` (bin "project") due to previous error

With an additional panic!() in the magic-sys build script it looks like there's a swallowed error that doesn't actually fail the build, but leaves cargo/rustc in a partially configured state:

PS C:\Users\anon\Desktop\project> cargo vcpkg build
    Fetching vcpkg
    Checkout branch master
     Pulling branch master
  Installing libmagic
    Finished in 1.41s
PS C:\Users\anon\Desktop\project> cargo build
   Compiling magic-sys v0.3.0 (C:\Users\anon\Desktop\rust-magic-sys)
   Compiling syn v2.0.29
error: failed to run custom build command for `magic-sys v0.3.0 (C:\Users\anon\Desktop\rust-magic-sys)`

Caused by:
  process didn't exit successfully: `C:\Users\anon\Desktop\project\target\debug\build\magic-sys-5bcab6812aeb3e3b\build-script-build` (exit code: 101)
  --- stdout
  cargo:rerun-if-env-changed=X86_64_PC_WINDOWS_MSVC_MAGIC_DIR
  cargo:rerun-if-env-changed=MAGIC_DIR
  Could not find vcpkg package: Could not find library in Vcpkg tree package libmagic is not installed for vcpkg triplet x64-windows-static-md
  cargo:rustc-link-lib=dylib=magic

  --- stderr
  thread 'main' panicked at 'poor man's debugger', C:\Users\anon\Desktop\rust-magic-sys\build.rs:64:5
  note: run with `RUST_BACKTRACE=1` environment variable to display a backtrace
warning: build failed, waiting for other jobs to finish...

This looks like a bug and a problem in magic-sys. Until I get around to dig deeper into this, a workaround you could try is:

cargo vcpkg build
.\target\vcpkg\vcpkg.exe install libmagic:x64-windows-static-md
cargo build