cargo-oudated installation fails: error[E0283]: type annotations needed

[Darleev]

Hello,

There is an issue during the cargo-outdated installation using these two ways. The following issue appears during the installation:

2021-01-25T12:29:09.3660856Z error[E0283]: type annotations needed
2021-01-25T12:29:09.3662485Z    --> /home/vsts/.cargo/registry/src/github.com-1ecc6299db9ec823/cargo-0.50.0/src/cargo/util/config/de.rs:530:63
2021-01-25T12:29:09.3663348Z     |
2021-01-25T12:29:09.3663785Z 530 |                 seed.deserialize(Tuple2Deserializer(1i32, env.as_ref()))
2021-01-25T12:29:09.3664576Z     |                                                           ----^^^^^^--
2021-01-25T12:29:09.3665129Z     |                                                           |   |
2021-01-25T12:29:09.3665719Z     |                                                           |   cannot infer type for type parameter `T` declared on the trait `AsRef`
2021-01-25T12:29:09.3666558Z     |                                                           this method call resolves to `&T`
2021-01-25T12:29:09.3667021Z     |
2021-01-25T12:29:09.3667552Z     = note: cannot satisfy `std::string::String: AsRef<_>`
2021-01-25T12:29:09.3668130Z 
2021-01-25T12:29:10.2540507Z error: aborting due to previous error
2021-01-25T12:29:10.2540830Z 
2021-01-25T12:29:10.2541849Z For more information about this error, try `rustc --explain E0283`.
2021-01-25T12:29:10.2866992Z error: failed to compile `cargo-outdated v0.9.14`, intermediate artifacts can be found at `/tmp/cargo-install3s0tel`
2021-01-25T12:29:10.2867539Z 
2021-01-25T12:29:10.2867706Z Caused by:
2021-01-25T12:29:10.2867935Z   could not compile `cargo`
2021-01-25T12:29:10.2868092Z 
2021-01-25T12:29:10.2868242Z Caused by:
2021-01-25T12:29:10.3034632Z   process didn't exit successfully: `rustc --crate-name cargo --edition=2018 /home/vsts/.cargo/registry/src/github.com-1ecc6299db9ec823/cargo-0.50.0/src/cargo/lib.rs --error-format=json --json=diagnostic-rendered-ansi --crate-type lib --emit=dep-info,metadata,link -C opt-level=3 -C linker-plugin-lto -C metadata=270d47ebe06749c5 -C extra-filename=-270d47ebe06749c5 --out-dir /tmp/cargo-install3s0tel/release/deps -L dependency=/tmp/cargo-install3s0tel/release/deps --extern anyhow=/tmp/cargo-install3s0tel/release/deps/libanyhow-5c280190a2f8901a.rmeta --extern atty=/tmp/cargo-install3s0tel/release/deps/libatty-ba32aef2724ea9dd.rmeta --extern bytesize=/tmp/cargo-install3s0tel/release/deps/libbytesize-d85866a993a7236e.rmeta --extern cargo_platform=/tmp/cargo-install3s0tel/release/deps/libcargo_platform-072f7ef99d83365b.rmeta --extern clap=/tmp/cargo-install3s0tel/release/deps/libclap-735faae04a7bbaca.rmeta --extern crates_io=/tmp/cargo-install3s0tel/release/deps/libcrates_io-4fdf3b94cb9f768e.rmeta --extern crossbeam_utils=/tmp/cargo-install3s0tel/release/deps/libcrossbeam_utils-4b28f5c7e3feba94.rmeta --extern crypto_hash=/tmp/cargo-install3s0tel/release/deps/libcrypto_hash-0d2a368a916f4f52.rmeta --extern curl=/tmp/cargo-install3s0tel/release/deps/libcurl-acc299eca5eb5e3e.rmeta --extern curl_sys=/tmp/cargo-install3s0tel/release/deps/libcurl_sys-19891feecd52d376.rmeta --extern env_logger=/tmp/cargo-install3s0tel/release/deps/libenv_logger-4c0f03b99d3a177c.rmeta --extern filetime=/tmp/cargo-install3s0tel/release/deps/libfiletime-fd16256630be9042.rmeta --extern flate2=/tmp/cargo-install3s0tel/release/deps/libflate2-37012884735a2965.rmeta --extern git2=/tmp/cargo-install3s0tel/release/deps/libgit2-66882e40cd7a54c5.rmeta --extern git2_curl=/tmp/cargo-install3s0tel/release/deps/libgit2_curl-89b14f26bf8d8551.rmeta --extern glob=/tmp/cargo-install3s0tel/release/deps/libglob-7ed38de39fa7fbbc.rmeta --extern hex=/tmp/cargo-install3s0tel/release/deps/libhex-c8178b3285e3a8e5.rmeta --extern home=/tmp/cargo-install3s0tel/release/deps/libhome-2b69613113f0f4b0.rmeta --extern humantime=/tmp/cargo-install3s0tel/release/deps/libhumantime-7fa07c3eb7e16606.rmeta --extern ignore=/tmp/cargo-install3s0tel/release/deps/libignore-aeed6f328665a4cf.rmeta --extern im_rc=/tmp/cargo-install3s0tel/release/deps/libim_rc-10cc080552bdab6e.rmeta --extern jobserver=/tmp/cargo-install3s0tel/release/deps/libjobserver-7a50169cdb8dc981.rmeta --extern lazy_static=/tmp/cargo-install3s0tel/release/deps/liblazy_static-48de660e3bcc26be.rmeta --extern lazycell=/tmp/cargo-install3s0tel/release/deps/liblazycell-70c935efec874551.rmeta --extern libc=/tmp/cargo-install3s0tel/release/deps/liblibc-96558c0b1186b7e9.rmeta --extern libgit2_sys=/tmp/cargo-install3s0tel/release/deps/liblibgit2_sys-604edae1efe57efb.rmeta --extern log=/tmp/cargo-install3s0tel/release/deps/liblog-2a6c4fcc09293842.rmeta --extern memchr=/tmp/cargo-install3s0tel/release/deps/libmemchr-28806996c300a7d7.rmeta --extern num_cpus=/tmp/cargo-install3s0tel/release/deps/libnum_cpus-3437e86ceb0ad185.rmeta --extern opener=/tmp/cargo-install3s0tel/release/deps/libopener-38ec61bbc3c973e8.rmeta --extern percent_encoding=/tmp/cargo-install3s0tel/release/deps/libpercent_encoding-639ad3a052466fa5.rmeta --extern rustc_workspace_hack=/tmp/cargo-install3s0tel/release/deps/librustc_workspace_hack-265f4084201cdf54.rmeta --extern rustfix=/tmp/cargo-install3s0tel/release/deps/librustfix-e4a4a948e12f2fd5.rmeta --extern same_file=/tmp/cargo-install3s0tel/release/deps/libsame_file-3b1239ca8e22c1f5.rmeta --extern semver=/tmp/cargo-install3s0tel/release/deps/libsemver-485e69e6e81ca3f6.rmeta --extern serde=/tmp/cargo-install3s0tel/release/deps/libserde-4449cbd335012ae3.rmeta --extern serde_ignored=/tmp/cargo-install3s0tel/release/deps/libserde_ignored-93a7213a76f51295.rmeta --extern serde_json=/tmp/cargo-install3s0tel/release/deps/libserde_json-0245a8dee5e91fda.rmeta --extern shell_escape=/tmp/cargo-install3s0tel/release/deps/libshell_escape-d636c0ad78d777b6.rmeta --extern strip_ansi_escapes=/tmp/cargo-install3s0tel/release/deps/libstrip_ansi_escapes-71e225cbe02c3592.rmeta --extern tar=/tmp/cargo-install3s0tel/release/deps/libtar-df8ef2b0f247ad5f.rmeta --extern tempfile=/tmp/cargo-install3s0tel/release/deps/libtempfile-333a9f90062d37fd.rmeta --extern termcolor=/tmp/cargo-install3s0tel/release/deps/libtermcolor-f13f851e4312325c.rmeta --extern toml=/tmp/cargo-install3s0tel/release/deps/libtoml-86b43022705cb80b.rmeta --extern unicode_width=/tmp/cargo-install3s0tel/release/deps/libunicode_width-177b176287c0d6e8.rmeta --extern unicode_xid=/tmp/cargo-install3s0tel/release/deps/libunicode_xid-9b4937596b97921b.rmeta --extern url=/tmp/cargo-install3s0tel/release/deps/liburl-a71be491d9a569c8.rmeta --extern walkdir=/tmp/cargo-install3s0tel/release/deps/libwalkdir-107f000ad06cc20f.rmeta --cap-lints allow -L native=/tmp/cargo-install3s0tel/release/build/curl-sys-15860113a542570c/out/build -L native=/tmp/cargo-install3s0tel/release/build/libnghttp2-sys-b2801b730686a6ff/out/i/lib -L native=/tmp/cargo-install3s0tel/release/build/libgit2-sys-d6137d9a820f7f30/out/build -L native=/tmp/cargo-install3s0tel/release/build/libssh2-sys-b50a459ff93300bb/out/build` (exit code: 1)

The issue is actual for all platforms: Windows, Ubuntu, macOS
The first time the error appeared - yesterday( 24.01.2021 )

However, in case of install from sources, everything looks okay.

I tried to downgrade cargo-outdated to previous releases in my forked repo , but with no luck, the issue persists.

Could you please check the issue?

[miketimofeev]

Looks like the issue is related to cargo
rust-lang/cargo#9101

[Darleev]

Please check the comment above, the issue was fixed using --locked option for cargo install.