cargo panic on thirdparty tools install

[kpy3]

Hi there,

Just updated to latest nightly snapshot

% rustup update
info: syncing channel updates for 'stable-x86_64-apple-darwin'
info: syncing channel updates for 'nightly-x86_64-apple-darwin'
info: checking for self-updates

   stable-x86_64-apple-darwin unchanged - rustc 1.15.1 (021bd294c 2017-02-08)
  nightly-x86_64-apple-darwin unchanged - rustc 1.17.0-nightly (e4eb964dd 2017-03-11)

and try to reinstall clippy:

% RUST_BACKTRACE=full cargo +nightly install clippy
thread 'main' panicked at 'called `Option::unwrap()` on a `None` value', src/libcore/option.rs:323
stack backtrace:
   0:        0x10318d293 - std::sys::imp::backtrace::tracing::imp::unwind_backtrace::h7b906ec435ded35c
   1:        0x1031941b4 - std::panicking::default_hook::{{closure}}::h44d92332f38028b9
   2:        0x103193dcd - std::panicking::default_hook::ha8486ead32221b33
   3:        0x103196917 - std::panicking::rust_panic_with_hook::hdbc3bba6a9dc0bb9
   4:        0x1031967b4 - std::panicking::begin_panic::ha249c774b9bf96e1
   5:        0x103196722 - std::panicking::begin_panic_fmt::ha197daaf02a649ab
   6:        0x103196687 - rust_begin_unwind
   7:        0x1031be260 - core::panicking::panic_fmt::h7414cb5ce71ea361
   8:        0x1031be164 - core::panicking::panic::hcbe9ad6a1a4f4afd
   9:        0x102edc141 - cargo::version::h514bf8eb132b821a
  10:        0x102e6df43 - cargo::ops::registry::http_handle::ha92c0787d2d2696d
  11:        0x102e98699 - <cargo::sources::registry::remote::RemoteRegistry<'cfg> as cargo::sources::registry::RegistryData>::update_index::h7644a3bd96fbd546
  12:        0x102e9dec7 - cargo::sources::registry::RegistrySource::do_update::hbe49ec8677ca7a66
  13:        0x102e9e116 - <cargo::sources::registry::RegistrySource<'cfg> as cargo::core::source::Source>::update::h155c3dfa80eb0bd1
  14:        0x102df5002 - cargo::ops::cargo_install::install::h8745e233b79231fd
  15:        0x102c92a42 - cargo::try_execute_builtin_command::h6c891951512d460a
  16:        0x102c7e027 - cargo::execute::h818fd451708539ad
  17:        0x102c71ece - cargo::call_main_without_stdin::ha5cbac72641e15a1
  18:        0x102c7cbbf - cargo::main::hd19b6454ea1b61a0
  19:        0x1031965e5 - std::panicking::try::do_call::h24a2756282b9a31c
  20:        0x10319788a - __rust_maybe_catch_panic
  21:        0x103196d26 - std::rt::lang_start::hd19f94db0c6a490e

[Cxarli]

Confirmed. cargo --version fails on all Travis Rust nightly builds.

[tmccombs]

From the stacktrace it looks like it is coming from /checkout/cargo/src/cargo/lib.rs:263, which is

major: env_str!("CARGO_PKG_VERSION_MAJOR"),

was the CARGO_PKG_VERSION_MAJOR environment variable not set when it was built?

[sfackler]

#3819

[alexcrichton]

Ah yes this should be fixed in recent nightlies, thanks for the report though!

[Cxarli]

It is indeed fixed. Thanks!