Find unused dependencies in Cargo.toml

Last update: Jan 4, 2023

Related tags

Development tools cargo-udeps

Overview

cargo-udeps

Find unused dependencies in Cargo.toml.

While compilation of this tool also works on Rust stable, it needs Rust nightly to actually run.

Installation

GitHub Releases

https://github.com/est31/cargo-udeps/releases

`cargo install` (crates.io)

cargo install cargo-udeps --locked

`cargo install` (`master`)

cargo install --git https://github.com/est31/cargo-udeps --locked

Dedicated packages

Some GNU/Linux distros have packaged cargo-udeps:

Nix/Nix OS: cargo-udeps
Arch Linux: pacman -S cargo-udeps

Usage

cargo +nightly udeps

It either prints out a "unused crates" line listing the crates, or it prints out a line saying that no crates were unused.

Ignoring some of the dependencies

To ignore some of the dependencies, add package.metadata.cargo-udeps.ignore to Cargo.toml.

[package.metadata.cargo-udeps.ignore]
normal = ["if_chain"]
#development = []
#build = []

[dependencies]
if_chain = "1.0.0" # Used only in doc-tests, which `cargo-udeps` cannot check.

Known bugs

Some unused crates might not be detected. This includes crates used by std and its dependencies as well as crates that are already being used by dependencies of the studied crate.
Crates are currently only handled on a per name basis. Two crates with the same name but different versions would be a problem.

Trophy case

This is a list of cases where unused dependencies were found using cargo-udeps. You are welcome to expand it:

License

This tool is distributed under the terms of both the MIT license and the Apache License (Version 2.0), at your option.

See LICENSE for details.

License of your contributions

Unless you explicitly state otherwise, any contribution intentionally submitted for inclusion in the work by you, as defined in the Apache-2.0 license, shall be dual licensed as above, without any additional terms or conditions.

Comments

Segmentation fault when running on nightly-x86_64-unknown-linux-musl

My environment:

+ rustup --version
rustup 1.23.1 (2020-11-30)
...
cargo 1.50.0 (f04e7fab7 2021-02-04)

The output from the command when running in a workspace with ~15 crates:

$ rustup show
Default host: x86_64-unknown-linux-musl
rustup home:  /usr/local/rustup
installed toolchains
--------------------
nightly-x86_64-unknown-linux-musl
1.50.0-x86_64-unknown-linux-musl (default)
active toolchain
----------------
1.50.0-x86_64-unknown-linux-musl (default)
rustc 1.50.0 (cb75ad5db 2021-02-10)

$ cargo +nightly udeps --release --all-targets
/bin/bash: line 147:    26 Segmentation fault      (core dumped) cargo +nightly udeps --release --all-targets

Any advice on how to resolve this issue? Thanks.

opened by seanpianka 25

cargo install cargo-udeps --locked: `linking with cc failed`

Stdout

% cargo install cargo-udeps --locked
    Updating crates.io index
  Installing cargo-udeps v0.1.15
   Compiling libc v0.2.79
   Compiling pkg-config v0.3.18
   Compiling cfg-if v0.1.10
   Compiling autocfg v1.0.1
   Compiling proc-macro2 v1.0.24
   Compiling unicode-xid v0.2.1
   Compiling syn v1.0.43
   Compiling version_check v0.9.2
   Compiling serde_derive v1.0.116
   Compiling serde v1.0.116
   Compiling lazy_static v1.4.0
   Compiling bitflags v1.2.1
   Compiling crc32fast v1.2.0
   Compiling log v0.4.11
   Compiling getrandom v0.1.15
   Compiling memchr v2.3.3
   Compiling tinyvec v0.3.4
   Compiling matches v0.1.8
   Compiling ryu v1.0.5
   Compiling typenum v1.12.0
   Compiling percent-encoding v2.1.0
   Compiling regex-syntax v0.6.18
   Compiling serde_json v1.0.58
   Compiling openssl-probe v0.1.2
   Compiling anyhow v1.0.33
   Compiling curl v0.4.33
   Compiling openssl v0.10.30
   Compiling foreign-types-shared v0.1.1
   Compiling ppv-lite86 v0.2.9
   Compiling unicode-width v0.1.8
   Compiling itoa v0.4.6
   Compiling same-file v1.0.6
   Compiling vec_map v0.8.2
   Compiling utf8parse v0.1.1
   Compiling ansi_term v0.11.0
   Compiling fnv v1.0.7
   Compiling quick-error v1.2.3
   Compiling unicode-segmentation v1.6.0
   Compiling strsim v0.8.0
   Compiling semver-parser v0.7.0
   Compiling hex v0.3.2
   Compiling termcolor v1.1.0
   Compiling remove_dir_all v0.5.3
   Compiling shell-escape v0.1.5
   Compiling glob v0.3.0
   Compiling rustc-workspace-hack v1.0.0
   Compiling bytesize v1.0.1
   Compiling opener v0.4.1
   Compiling hex v0.4.2
   Compiling humantime v2.0.1
   Compiling home v0.5.3
   Compiling lazycell v1.3.0
   Compiling ansi_term v0.12.1
   Compiling thread_local v1.0.1
   Compiling proc-macro-error-attr v1.0.4
   Compiling proc-macro-error v1.0.4
   Compiling im-rc v15.0.0
   Compiling crossbeam-utils v0.7.2
   Compiling unicode-bidi v0.3.4
   Compiling unicode-normalization v0.1.13
   Compiling foreign-types v0.3.2
   Compiling textwrap v0.11.0
   Compiling walkdir v2.3.1
   Compiling vte v0.3.3
   Compiling humantime v1.3.0
   Compiling heck v0.3.1
   Compiling strip-ansi-escapes v0.1.0
   Compiling idna v0.2.0
   Compiling jobserver v0.1.21
   Compiling filetime v0.2.12
   Compiling socket2 v0.3.15
   Compiling atty v0.2.14
   Compiling num_cpus v1.13.0
   Compiling quote v1.0.7
   Compiling aho-corasick v0.7.13
   Compiling bstr v0.2.13
   Compiling tar v0.4.30
   Compiling cc v1.0.61
   Compiling rand_core v0.5.1
   Compiling clap v2.33.3
   Compiling url v2.1.1
   Compiling bitmaps v2.1.0
   Compiling regex v1.3.9
   Compiling rand_chacha v0.2.2
   Compiling rand_xoshiro v0.4.0
   Compiling libz-sys v1.1.2
   Compiling openssl-sys v0.9.58
   Compiling libnghttp2-sys v0.1.4+1.41.0
   Compiling curl-sys v0.4.36+curl-7.71.1
   Compiling libssh2-sys v0.2.19
   Compiling libgit2-sys v0.12.13+1.0.1
   Compiling sized-chunks v0.6.2
   Compiling rand v0.7.3
   Compiling globset v0.4.5
   Compiling env_logger v0.7.1
   Compiling ignore v0.4.16
   Compiling tempfile v3.1.0
   Compiling structopt-derive v0.4.12
   Compiling flate2 v1.0.18
   Compiling structopt v0.3.19
   Compiling cargo v0.48.0
   Compiling crypto-hash v0.3.4
   Compiling git2 v0.13.11
   Compiling semver v0.10.0
   Compiling toml v0.5.6
   Compiling serde_ignored v0.1.2
   Compiling cargo-platform v0.1.1
   Compiling crates-io v0.31.1
   Compiling rustfix v0.5.1
   Compiling git2-curl v0.14.1
   Compiling cargo-udeps v0.1.15
error: linking with `cc` failed: exit code: 1
  |
  = note: "cc" "-Wl,--as-needed" "-Wl,-z,noexecstack" "-m64" "-Wl,--eh-frame-hdr" "-L" "/home/linusb/.rustup/toolchains/nightly-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib" "/tmp/cargo-installJlrhXh/release/deps/cargo_udeps-4ad270e2c9a4b29f.cargo_udeps.8rvwrm26-cgu.0.rcgu.o" "/tmp/cargo-installJlrhXh/release/deps/cargo_udeps-4ad270e2c9a4b29f.cargo_udeps.8rvwrm26-cgu.1.rcgu.o" "/tmp/cargo-installJlrhXh/release/deps/cargo_udeps-4ad270e2c9a4b29f.cargo_udeps.8rvwrm26-cgu.10.rcgu.o" "/tmp/cargo-installJlrhXh/release/deps/cargo_udeps-4ad270e2c9a4b29f.cargo_udeps.8rvwrm26-cgu.11.rcgu.o" "/tmp/cargo-installJlrhXh/release/deps/cargo_udeps-4ad270e2c9a4b29f.cargo_udeps.8rvwrm26-cgu.12.rcgu.o" "/tmp/cargo-installJlrhXh/release/deps/cargo_udeps-4ad270e2c9a4b29f.cargo_udeps.8rvwrm26-cgu.13.rcgu.o" "/tmp/cargo-installJlrhXh/release/deps/cargo_udeps-4ad270e2c9a4b29f.cargo_udeps.8rvwrm26-cgu.14.rcgu.o" "/tmp/cargo-installJlrhXh/release/deps/cargo_udeps-4ad270e2c9a4b29f.cargo_udeps.8rvwrm26-cgu.15.rcgu.o" "/tmp/cargo-installJlrhXh/release/deps/cargo_udeps-4ad270e2c9a4b29f.cargo_udeps.8rvwrm26-cgu.2.rcgu.o" "/tmp/cargo-installJlrhXh/release/deps/cargo_udeps-4ad270e2c9a4b29f.cargo_udeps.8rvwrm26-cgu.3.rcgu.o" "/tmp/cargo-installJlrhXh/release/deps/cargo_udeps-4ad270e2c9a4b29f.cargo_udeps.8rvwrm26-cgu.4.rcgu.o" "/tmp/cargo-installJlrhXh/release/deps/cargo_udeps-4ad270e2c9a4b29f.cargo_udeps.8rvwrm26-cgu.5.rcgu.o" "/tmp/cargo-installJlrhXh/release/deps/cargo_udeps-4ad270e2c9a4b29f.cargo_udeps.8rvwrm26-cgu.6.rcgu.o" "/tmp/cargo-installJlrhXh/release/deps/cargo_udeps-4ad270e2c9a4b29f.cargo_udeps.8rvwrm26-cgu.7.rcgu.o" "/tmp/cargo-installJlrhXh/release/deps/cargo_udeps-4ad270e2c9a4b29f.cargo_udeps.8rvwrm26-cgu.8.rcgu.o" "/tmp/cargo-installJlrhXh/release/deps/cargo_udeps-4ad270e2c9a4b29f.cargo_udeps.8rvwrm26-cgu.9.rcgu.o" "-o" "/tmp/cargo-installJlrhXh/release/deps/cargo_udeps-4ad270e2c9a4b29f" "/tmp/cargo-installJlrhXh/release/deps/cargo_udeps-4ad270e2c9a4b29f.snemrwk7v1kupuf.rcgu.o" "-Wl,--gc-sections" "-pie" "-Wl,-zrelro" "-Wl,-znow" "-Wl,-O1" "-nodefaultlibs" "-L" "/tmp/cargo-installJlrhXh/release/deps" "-L" "/usr/lib" "-L" "/tmp/cargo-installJlrhXh/release/build/libnghttp2-sys-22c16f041504b78d/out/i/lib" "-L" "/usr/lib/openssl-1.0" "-L" "/usr/lib" "-L" "/tmp/cargo-installJlrhXh/release/build/libssh2-sys-b6d0c21048e26722/out/build" "-L" "/home/linusb/.rustup/toolchains/nightly-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib" "-Wl,-Bstatic" "/tmp/cargo-installJlrhXh/release/deps/libcargo_udeps-2fc5a7b1e77b30a1.rlib" "/tmp/cargo-installJlrhXh/release/deps/libstructopt-1d18183a458d84ee.rlib" "/tmp/cargo-installJlrhXh/release/deps/libansi_term-1eef6c07e7bfb725.rlib" "/tmp/cargo-installJlrhXh/release/deps/libcargo-becaee37a9ef7bcc.rlib" "/tmp/cargo-installJlrhXh/release/deps/libunicode_xid-a022950b7ec6389a.rlib" "/tmp/cargo-installJlrhXh/release/deps/libhex-56d14df33fe6856e.rlib" "/tmp/cargo-installJlrhXh/release/deps/libhome-69013ab9cb34ec5f.rlib" "/tmp/cargo-installJlrhXh/release/deps/libopener-9bea2681af56d383.rlib" "/tmp/cargo-installJlrhXh/release/deps/libim_rc-6908106d0547ee58.rlib" "/tmp/cargo-installJlrhXh/release/deps/librand_xoshiro-14db6d0a03039928.rlib" "/tmp/cargo-installJlrhXh/release/deps/libsized_chunks-0cf4989e400b899e.rlib" "/tmp/cargo-installJlrhXh/release/deps/libbitmaps-deea59fe81620cdc.rlib" "/tmp/cargo-installJlrhXh/release/deps/libtypenum-d7ca20abc12abbe8.rlib" "/tmp/cargo-installJlrhXh/release/deps/libtoml-8402a86390b16ad3.rlib" "/tmp/cargo-installJlrhXh/release/deps/libstrip_ansi_escapes-359611d286e9925f.rlib" "/tmp/cargo-installJlrhXh/release/deps/libvte-dca5c58a4af53e85.rlib" "/tmp/cargo-installJlrhXh/release/deps/libutf8parse-6e6008836aa47294.rlib" "/tmp/cargo-installJlrhXh/release/deps/libhumantime-7a0fb41d81f906e5.rlib" "/tmp/cargo-installJlrhXh/release/deps/libnum_cpus-06fb0fe06e8892a9.rlib" "/tmp/cargo-installJlrhXh/release/deps/libserde_ignored-49493f7cbb7bdfce.rlib" "/tmp/cargo-installJlrhXh/release/deps/libcrypto_hash-cb087f1bb9035e24.rlib" "/tmp/cargo-installJlrhXh/release/deps/libopenssl-87fe2bf9690c6b2e.rlib" "/tmp/cargo-installJlrhXh/release/deps/libforeign_types-e905659fd4f440fd.rlib" "/tmp/cargo-installJlrhXh/release/deps/libforeign_types_shared-23e9a159fd1edb9e.rlib" "/tmp/cargo-installJlrhXh/release/deps/libhex-ef2ab26148ee3bcd.rlib" "/tmp/cargo-installJlrhXh/release/deps/libshell_escape-b96d9154467062fe.rlib" "/tmp/cargo-installJlrhXh/release/deps/libclap-3f36a4849f1545d8.rlib" "/tmp/cargo-installJlrhXh/release/deps/libvec_map-9c252890059a866d.rlib" "/tmp/cargo-installJlrhXh/release/deps/libtextwrap-d6ca0e7161200f6a.rlib" "/tmp/cargo-installJlrhXh/release/deps/libunicode_width-b72199703ba264b4.rlib" "/tmp/cargo-installJlrhXh/release/deps/libstrsim-d9cf646f3a963a27.rlib" "/tmp/cargo-installJlrhXh/release/deps/libatty-56b7b5b0fc589437.rlib" "/tmp/cargo-installJlrhXh/release/deps/libansi_term-eec6258261c7a122.rlib" "/tmp/cargo-installJlrhXh/release/deps/libignore-a71bbbd9142b05bd.rlib" "/tmp/cargo-installJlrhXh/release/deps/libwalkdir-a4a6df542d335966.rlib" "/tmp/cargo-installJlrhXh/release/deps/libsame_file-7b7f7655017bd7b0.rlib" "/tmp/cargo-installJlrhXh/release/deps/libglobset-eb7f1fbaf9fce51b.rlib" "/tmp/cargo-installJlrhXh/release/deps/libregex-26b208ca90b46e27.rlib" "/tmp/cargo-installJlrhXh/release/deps/libthread_local-0e43aa4642bab06e.rlib" "/tmp/cargo-installJlrhXh/release/deps/libregex_syntax-a64aeef778f68b17.rlib" "/tmp/cargo-installJlrhXh/release/deps/libfnv-47e7fa303c27fcd0.rlib" "/tmp/cargo-installJlrhXh/release/deps/libbstr-162345631364e459.rlib" "/tmp/cargo-installJlrhXh/release/deps/libaho_corasick-118d8944ceaaaea2.rlib" "/tmp/cargo-installJlrhXh/release/deps/libmemchr-446044cc20eec784.rlib" "/tmp/cargo-installJlrhXh/release/deps/libcrates_io-1f8a19b7d98af40d.rlib" "/tmp/cargo-installJlrhXh/release/deps/librustfix-4969e68bfdc6ada2.rlib" "/tmp/cargo-installJlrhXh/release/deps/libserde_json-886b6b382248ec5b.rlib" "/tmp/cargo-installJlrhXh/release/deps/libryu-0ce1a54a4a2f4496.rlib" "/tmp/cargo-installJlrhXh/release/deps/libitoa-3845f42908e2d57d.rlib" "/tmp/cargo-installJlrhXh/release/deps/libtar-72bda84d2f9d60b3.rlib" "/tmp/cargo-installJlrhXh/release/deps/libflate2-21df2df80e272602.rlib" "/tmp/cargo-installJlrhXh/release/deps/libcrc32fast-713a53fd85ece4af.rlib" "/tmp/cargo-installJlrhXh/release/deps/libgit2-ac1d7c0bcdb097dd.rlib" "/tmp/cargo-installJlrhXh/release/deps/libopenssl_probe-6060252f9d2ab544.rlib" "/tmp/cargo-installJlrhXh/release/deps/liblibgit2_sys-7a368d2a53589104.rlib" "/tmp/cargo-installJlrhXh/release/deps/liblibssh2_sys-b63aa527293ffb5e.rlib" "/tmp/cargo-installJlrhXh/release/deps/liblibz_sys-3cbd50681ddc35fc.rlib" "/tmp/cargo-installJlrhXh/release/deps/libbitflags-3481844fb16a27e3.rlib" "/tmp/cargo-installJlrhXh/release/deps/libtempfile-c88ed794bea65fb8.rlib" "/tmp/cargo-installJlrhXh/release/deps/librand-306b02ba05716fab.rlib" "/tmp/cargo-installJlrhXh/release/deps/librand_chacha-20936efc05fdcf58.rlib" "/tmp/cargo-installJlrhXh/release/deps/libppv_lite86-2b5b5b6e438ae06d.rlib" "/tmp/cargo-installJlrhXh/release/deps/librand_core-fae5a7de1f05876c.rlib" "/tmp/cargo-installJlrhXh/release/deps/libgetrandom-379b55f4bcba82a9.rlib" "/tmp/cargo-installJlrhXh/release/deps/libremove_dir_all-265754eac9db3c5f.rlib" "/tmp/cargo-installJlrhXh/release/deps/libglob-02ff78eb7fcfed36.rlib" "/tmp/cargo-installJlrhXh/release/deps/libtermcolor-8b875c960548daec.rlib" "/tmp/cargo-installJlrhXh/release/deps/libcurl-edcf9252205263b3.rlib" "/tmp/cargo-installJlrhXh/release/deps/libopenssl_sys-25de0af3bd09c6e2.rlib" "/tmp/cargo-installJlrhXh/release/deps/libsocket2-f3dae21f7a869d97.rlib" "/tmp/cargo-installJlrhXh/release/deps/libcurl_sys-ba794b725aba7076.rlib" "/tmp/cargo-installJlrhXh/release/deps/libbytesize-065391c583124529.rlib" "/tmp/cargo-installJlrhXh/release/deps/liburl-d059e2bc568f5cc7.rlib" "/tmp/cargo-installJlrhXh/release/deps/libpercent_encoding-bfd9f3d20760f93a.rlib" "/tmp/cargo-installJlrhXh/release/deps/libidna-d68e9a57c422e9d7.rlib" "/tmp/cargo-installJlrhXh/release/deps/libunicode_normalization-ddbc5e3edd10896b.rlib" "/tmp/cargo-installJlrhXh/release/deps/libtinyvec-955847b5f37639b2.rlib" "/tmp/cargo-installJlrhXh/release/deps/libunicode_bidi-f70b1d5bae5305dd.rlib" "/tmp/cargo-installJlrhXh/release/deps/libmatches-00a9da1690089f34.rlib" "/tmp/cargo-installJlrhXh/release/deps/libcrossbeam_utils-490be52ff7a8bc43.rlib" "/tmp/cargo-installJlrhXh/release/deps/liblazy_static-53201e5af8cd3135.rlib" "/tmp/cargo-installJlrhXh/release/deps/liblazycell-90f274e3320ca1f1.rlib" "/tmp/cargo-installJlrhXh/release/deps/libjobserver-49da11ed1cb22a1c.rlib" "/tmp/cargo-installJlrhXh/release/deps/libfiletime-ebf7055f8bcc7d77.rlib" "/tmp/cargo-installJlrhXh/release/deps/liblibc-53f383edf340e4c8.rlib" "/tmp/cargo-installJlrhXh/release/deps/libsemver-0ff6f0d850b1b763.rlib" "/tmp/cargo-installJlrhXh/release/deps/libsemver_parser-73563d397a1dfb24.rlib" "/tmp/cargo-installJlrhXh/release/deps/libcargo_platform-0393f88083d8a8f5.rlib" "/tmp/cargo-installJlrhXh/release/deps/libserde-7e2cd3ba2610b189.rlib" "/tmp/cargo-installJlrhXh/release/deps/liblog-e2193921fa6fc243.rlib" "/tmp/cargo-installJlrhXh/release/deps/libcfg_if-0550b692bf420f09.rlib" "/tmp/cargo-installJlrhXh/release/deps/libanyhow-72ef736a84ae5634.rlib" "-Wl,--start-group" "/home/linusb/.rustup/toolchains/nightly-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libstd-faa3fd6c69b73b7d.rlib" "/home/linusb/.rustup/toolchains/nightly-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libpanic_unwind-a9e48811766e19b7.rlib" "/home/linusb/.rustup/toolchains/nightly-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libminiz_oxide-dec35b3159638863.rlib" "/home/linusb/.rustup/toolchains/nightly-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libadler-54ba75ba19df3515.rlib" "/home/linusb/.rustup/toolchains/nightly-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libobject-b4e081b17e50a5f3.rlib" "/home/linusb/.rustup/toolchains/nightly-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libaddr2line-e696cf3aebf90283.rlib" "/home/linusb/.rustup/toolchains/nightly-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libgimli-c9508c34f45c1407.rlib" "/home/linusb/.rustup/toolchains/nightly-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/librustc_demangle-fe83234631186fa0.rlib" "/home/linusb/.rustup/toolchains/nightly-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libhashbrown-ce3ade83fc902949.rlib" "/home/linusb/.rustup/toolchains/nightly-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/librustc_std_workspace_alloc-2c834b52f045959b.rlib" "/home/linusb/.rustup/toolchains/nightly-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libunwind-c2f088360802c114.rlib" "/home/linusb/.rustup/toolchains/nightly-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libcfg_if-4a28d8f1751385f2.rlib" "/home/linusb/.rustup/toolchains/nightly-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/liblibc-ca9410ae33b10c13.rlib" "/home/linusb/.rustup/toolchains/nightly-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/liballoc-d74f3c28111d31b0.rlib" "/home/linusb/.rustup/toolchains/nightly-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/librustc_std_workspace_core-c52e5d6301e1bd59.rlib" "/home/linusb/.rustup/toolchains/nightly-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libcore-2675a9a46b5cec89.rlib" "-Wl,--end-group" "/home/linusb/.rustup/toolchains/nightly-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libcompiler_builtins-f6fccc8824a0c5ae.rlib" "-Wl,-Bdynamic" "-lgit2" "-lz" "-lssl" "-lcrypto" "-lcurl" "-ldl" "-lrt" "-lpthread" "-lgcc_s" "-lc" "-lm" "-lrt" "-lpthread" "-lutil" "-ldl" "-lutil"
  = note: /usr/bin/ld: /tmp/cargo-installJlrhXh/release/deps/libopenssl-87fe2bf9690c6b2e.rlib(openssl-87fe2bf9690c6b2e.openssl.6wre5yi0-cgu.2.rcgu.o): in function `core::ptr::drop_in_place':
          openssl.6wre5yi0-cgu.2:(.text._ZN4core3ptr13drop_in_place17h4dd8e6ab0185ae5cE+0xb2): undefined reference to `EVP_MD_CTX_destroy'
          /usr/bin/ld: /tmp/cargo-installJlrhXh/release/deps/libopenssl-87fe2bf9690c6b2e.rlib(openssl-87fe2bf9690c6b2e.openssl.6wre5yi0-cgu.2.rcgu.o): in function `openssl::hash::Hasher::new':
          openssl.6wre5yi0-cgu.2:(.text._ZN7openssl4hash6Hasher3new17h128f04ef0fa3b360E+0x17): undefined reference to `EVP_MD_CTX_create'
          /usr/bin/ld: openssl.6wre5yi0-cgu.2:(.text._ZN7openssl4hash6Hasher3new17h128f04ef0fa3b360E+0xc7): undefined reference to `EVP_MD_CTX_destroy'
          /usr/bin/ld: /tmp/cargo-installJlrhXh/release/deps/libopenssl-87fe2bf9690c6b2e.rlib(openssl-87fe2bf9690c6b2e.openssl.6wre5yi0-cgu.2.rcgu.o): in function `<openssl::hash::Hasher as core::ops::drop::Drop>::drop':
          openssl.6wre5yi0-cgu.2:(.text._ZN63_$LT$openssl..hash..Hasher$u20$as$u20$core..ops..drop..Drop$GT$4drop17ha984604a97a1807fE+0xb2): undefined reference to `EVP_MD_CTX_destroy'
          /usr/bin/ld: /tmp/cargo-installJlrhXh/release/deps/liblibssh2_sys-b63aa527293ffb5e.rlib(openssl.o): in function `_libssh2_cipher_init':
          openssl.c:(.text._libssh2_cipher_init+0x18): undefined reference to `EVP_CIPHER_CTX_init'
          /usr/bin/ld: /tmp/cargo-installJlrhXh/release/deps/liblibssh2_sys-b63aa527293ffb5e.rlib(openssl.o): in function `_libssh2_openssl_crypto_init':
          openssl.c:(.text._libssh2_openssl_crypto_init+0x5): undefined reference to `OPENSSL_add_all_algorithms_noconf'
          /usr/bin/ld: openssl.c:(.text._libssh2_openssl_crypto_init+0xa): undefined reference to `OpenSSL_add_all_ciphers'
          /usr/bin/ld: openssl.c:(.text._libssh2_openssl_crypto_init+0xf): undefined reference to `OpenSSL_add_all_digests'
          /usr/bin/ld: /tmp/cargo-installJlrhXh/release/deps/liblibssh2_sys-b63aa527293ffb5e.rlib(crypt.o): in function `crypt_dtor':
          crypt.c:(.text.crypt_dtor+0x1e): undefined reference to `EVP_CIPHER_CTX_cleanup'
          /usr/bin/ld: /tmp/cargo-installJlrhXh/release/deps/libopenssl_sys-25de0af3bd09c6e2.rlib(openssl_sys-25de0af3bd09c6e2.openssl_sys.b3gyrhw5-cgu.8.rcgu.o): in function `_ZN3std4sync4once4Once9call_once28_$u7b$$u7b$closure$u7d$$u7d$17hb1c55aede3dc2b46E.llvm.14332668503325837102':
          openssl_sys.b3gyrhw5-cgu.8:(.text._ZN3std4sync4once4Once9call_once28_$u7b$$u7b$closure$u7d$$u7d$17hb1c55aede3dc2b46E.llvm.14332668503325837102+0x1b): undefined reference to `SSL_library_init'
          /usr/bin/ld: openssl_sys.b3gyrhw5-cgu.8:(.text._ZN3std4sync4once4Once9call_once28_$u7b$$u7b$closure$u7d$$u7d$17hb1c55aede3dc2b46E.llvm.14332668503325837102+0x21): undefined reference to `SSL_load_error_strings'
          /usr/bin/ld: openssl_sys.b3gyrhw5-cgu.8:(.text._ZN3std4sync4once4Once9call_once28_$u7b$$u7b$closure$u7d$$u7d$17hb1c55aede3dc2b46E.llvm.14332668503325837102+0x27): undefined reference to `OPENSSL_add_all_algorithms_noconf'
          /usr/bin/ld: openssl_sys.b3gyrhw5-cgu.8:(.text._ZN3std4sync4once4Once9call_once28_$u7b$$u7b$closure$u7d$$u7d$17hb1c55aede3dc2b46E.llvm.14332668503325837102+0x2d): undefined reference to `CRYPTO_num_locks'
          /usr/bin/ld: openssl_sys.b3gyrhw5-cgu.8:(.text._ZN3std4sync4once4Once9call_once28_$u7b$$u7b$closure$u7d$$u7d$17hb1c55aede3dc2b46E.llvm.14332668503325837102+0x1aa): undefined reference to `CRYPTO_set_locking_callback'
          /usr/bin/ld: openssl_sys.b3gyrhw5-cgu.8:(.text._ZN3std4sync4once4Once9call_once28_$u7b$$u7b$closure$u7d$$u7d$17hb1c55aede3dc2b46E.llvm.14332668503325837102+0x1c1): undefined reference to `CRYPTO_set_id_callback'
          collect2: error: ld returned 1 exit status


error: aborting due to previous error

error: failed to compile `cargo-udeps v0.1.15`, intermediate artifacts can be found at `/tmp/cargo-installJlrhXh`

Caused by:
  could not compile `cargo-udeps`.

To learn more, run the command again with --verbose.

bug

opened by mankinskin 8

Panic when used with complex dependency graph

To reproduce, check out noria (specifically https://github.com/mit-pdos/noria/commit/fb1da756d41b40fccf3c5d1266acbaaba586f0a6) and run cargo udeps in the root:

cargo udeps
    Blocking waiting for file lock on build directory
    Checking nix v0.16.1
    Checking noria v0.3.0 (/home/jon/dev/projects/noria/noria)
    Checking trawler-mysql v0.3.0 (/home/jon/dev/projects/noria/noria-benchmarks/lobsters)
thread 'rustc' panicked at 'called `Option::unwrap()` on a `None` value', src/librustc_typeck/check/mod.rs:840:14
stack backtrace:
   0: backtrace::backtrace::libunwind::trace
             at /cargo/registry/src/github.com-1ecc6299db9ec823/backtrace-0.3.40/src/backtrace/libunwind.rs:88
   1: backtrace::backtrace::trace_unsynchronized
             at /cargo/registry/src/github.com-1ecc6299db9ec823/backtrace-0.3.40/src/backtrace/mod.rs:66
   2: std::sys_common::backtrace::_print_fmt
             at src/libstd/sys_common/backtrace.rs:77
   3: <std::sys_common::backtrace::_print::DisplayBacktrace as core::fmt::Display>::fmt
             at src/libstd/sys_common/backtrace.rs:59
   4: core::fmt::write
             at src/libcore/fmt/mod.rs:1052
   5: std::io::Write::write_fmt
             at src/libstd/io/mod.rs:1426
   6: std::sys_common::backtrace::_print
             at src/libstd/sys_common/backtrace.rs:62
   7: std::sys_common::backtrace::print
             at src/libstd/sys_common/backtrace.rs:49
   8: std::panicking::default_hook::{{closure}}
             at src/libstd/panicking.rs:204
   9: std::panicking::default_hook
             at src/libstd/panicking.rs:224
  10: rustc_driver::report_ice
  11: <alloc::boxed::Box<F> as core::ops::function::Fn<A>>::call
             at /rustc/698fcd38fa9548e64a2092ff48c9d15ceb57d40c/src/liballoc/boxed.rs:1029
  12: proc_macro::bridge::client::<impl proc_macro::bridge::Bridge>::enter::{{closure}}::{{closure}}
             at /rustc/698fcd38fa9548e64a2092ff48c9d15ceb57d40c/src/libproc_macro/bridge/client.rs:305
  13: std::panicking::rust_panic_with_hook
             at src/libstd/panicking.rs:476
  14: rust_begin_unwind
             at src/libstd/panicking.rs:380
  15: core::panicking::panic_fmt
             at src/libcore/panicking.rs:85
  16: core::panicking::panic
             at src/libcore/panicking.rs:52
  17: rustc_typeck::check::has_typeck_tables
  18: rustc::ty::query::__query_compute::has_typeck_tables
  19: rustc::ty::query::<impl rustc::ty::query::config::QueryAccessors for rustc::ty::query::queries::has_typeck_tables>::compute
  20: rustc::dep_graph::graph::DepGraph::with_task_impl
  21: rustc::ty::query::plumbing::<impl rustc::ty::context::TyCtxt>::get_query
  22: <rustc_save_analysis::dump_visitor::DumpVisitor as syntax::visit::Visitor>::visit_ty
  23: <rustc_save_analysis::dump_visitor::DumpVisitor as syntax::visit::Visitor>::visit_item
  24: <rustc_save_analysis::dump_visitor::DumpVisitor as syntax::visit::Visitor>::visit_item
  25: <rustc_save_analysis::dump_visitor::DumpVisitor as syntax::visit::Visitor>::visit_mod
  26: rustc::dep_graph::graph::DepGraph::with_ignore
  27: rustc::ty::context::tls::enter_global
  28: rustc_interface::interface::run_compiler_in_existing_thread_pool
  29: scoped_tls::ScopedKey<T>::set
  30: syntax::with_globals
note: Some details are omitted, run with `RUST_BACKTRACE=full` for a verbose backtrace.

error: internal compiler error: unexpected panic

note: the compiler unexpectedly panicked. this is a bug.

note: we would appreciate a bug report: https://github.com/rust-lang/rust/blob/master/CONTRIBUTING.md#bug-reports

note: rustc 1.42.0-nightly (698fcd38f 2020-01-26) running on x86_64-unknown-linux-gnu

note: compiler flags: -Z save-analysis -C debuginfo=2 -C incremental -C target-cpu=native --crate-type lib

note: some of the compiler flags provided by cargo are hidden

query stack during panic:
#0 [has_typeck_tables] processing `<controller::Controller<A> as tower_service::Service<controller::ControllerRequest>>::Future::{{opaque}}#0`
end of query stack
error: could not compile `noria`.

Note that this also happens if you run it in a particular sub-crate's root (like noria/).

bug

opened by jonhoo 8

Use structopt
Migrates to Rust 2018.

Uses structopt and constructs impl ArgMatchesExt with a HashMap.

Constructs a Config and configure it in main() function.

Replaces StrErr with failure::Error and exits with cargo::exit_with_error.

Suggests to enable --all-targets when it is not present && "unused dependencies" are detected.

Rewrote testsuite as a true integration-test (setting $RUSTC to the rustc location of $CARGO_UDEPS_TEST_TOOLCHAIN || "nightly") and runs it on the CI.

"Downgrades" action-gh-release used in ci.yml from v0.1.3 to v1 which is implemented as a docker container. action-gh-release is tested on only ubuntu-latest and the v0.1.3 does not work on macOS.
opened by qryxip 7
Fix nightly compilation error

This crate no longer compiles under the latest nightly.

We've had to disable this in our CI, tracked here: https://github.com/bevyengine/bevy/issues/5155

opened by alice-i-cecile 6

Sometimes compiler panics!

Sometimes I face this long error message:

thread 'rustc' panicked at 'failed to lookup `SourceFile` in new context', compiler/rustc_query_impl/src/on_disk_cache.rs:500:22
note: run with `RUST_BACKTRACE=1` environment variable to display a backtrace

error: internal compiler error: unexpected panic

note: the compiler unexpectedly panicked. this is a bug.

note: we would appreciate a bug report: https://github.com/rust-lang/rust/issues/new?labels=C-bug%2C+I-ICE%2C+T-compiler&template=ice.md

note: rustc 1.59.0-nightly (83b15bfe1 2021-12-28) running on x86_64-unknown-linux-gnu

note: compiler flags: -Z binary-dep-depinfo -Z save-analysis -C embed-bitcode=no -C debug-assertions=off -C overflow-checks=on -C incremental

note: some of the compiler flags provided by cargo are hidden

query stack during panic:
#0 [typeck] type-checking `some::where::something`
#1 [analysis] running analysis passes on this crate
end of query stack

opened by omid 6

json output: `unused_deps` may be non-empty even if all dependencies are used
{"success":true,"unused_deps":{"some crate":{"manifest_path":"/some/location","normal":[],"development":[],"build":[]}},"note":null}

is what I see when I build a workspace with many crates. The unused_deps map gets populated with further crates if and when they contain unused crates.

I think it might be because the some_crate is the only crate that has cargo-udeps.ignore specified in it.
opened by nagisa 6
Switch from Travis CI to GitHub Actions
The biggest advantage of GitHub Actions is this.

You can execute up to 20 workflows concurrently per repository.

You can execute up to 1000 API requests in an hour across all actions within a repository.

Each job in a workflow can run for up to 6 hours of execution time.

You can run up to 20 jobs concurrently per repository across all workflows.

Furthermore,

We can use sophisticated scripts as components. (for example, actions-rs)

$GITHUB_TOKEN is automatically set.
opened by qryxip 6
Current implementation cannot handle multiple crates with the same `lib` name
When running cargo +nightly udeps against https://github.com/habitat-sh/habitat:

➤ cargo +nightly udeps Downloaded arc-swap v0.4.2 Downloaded chrono v0.4.9 … Downloaded 34 crates (4.0 MB) in 8.13s (largest was `encoding_rs` at 1.4 MB) Error: StrErr("current implementation cannot handle multiple crates with the same `lib` name: `habitat_core v0.0.0 (/home/jbauman/habitat/components/core)` ├── "base64" → "base64" ├── "base64" → "base64" └── ..")

I know

Crates are currently only handled on a per name basis. Two crates with the same name but different versions would be a problem.

is listed as a known bug in https://github.com/est31/cargo-udeps/blob/master/README.md#known-bugs, but I couldn't find an issue that's tracking it. Since the project I work on won't be able to make use of udeps until this is resolved, having an issue I can subscribe to will help ensure that I can use it when that bug is fixed.
bug
opened by baumanj 6

can't find crates

I'm getting this a lot since updating to cargo-udeps 0.1.2: repro:

git clone https://github.com/rust-lang/cargo --depth=1
cd cargo
cargo udeps

panics:

thread 'main' panicked at 'could not find "crates-io 0.28.0 (path+file:///tmp/cargo/crates/crates-io)"', /home/matthias/.cargo/registry/src/github.com-1ecc6299db9ec823/cargo-udeps-0.1.2/src/main.rs:349:25
stack backtrace:
   0: backtrace::backtrace::libunwind::trace
             at /cargo/registry/src/github.com-1ecc6299db9ec823/backtrace-0.3.35/src/backtrace/libunwind.rs:88
   1: backtrace::backtrace::trace_unsynchronized
             at /cargo/registry/src/github.com-1ecc6299db9ec823/backtrace-0.3.35/src/backtrace/mod.rs:66
   2: std::sys_common::backtrace::_print
             at src/libstd/sys_common/backtrace.rs:47
   3: std::sys_common::backtrace::print
             at src/libstd/sys_common/backtrace.rs:36
   4: std::panicking::default_hook::{{closure}}
             at src/libstd/panicking.rs:200
   5: std::panicking::default_hook
             at src/libstd/panicking.rs:214
   6: std::panicking::rust_panic_with_hook
             at src/libstd/panicking.rs:477
   7: std::panicking::continue_panic_fmt
             at src/libstd/panicking.rs:384
   8: std::panicking::begin_panic_fmt
             at src/libstd/panicking.rs:339
   9: cargo_udeps::main::{{closure}}
  10: cargo_udeps::main
  11: std::rt::lang_start::{{closure}}
  12: std::rt::lang_start_internal::{{closure}}
             at src/libstd/rt.rs:49
  13: std::panicking::try::do_call
             at src/libstd/panicking.rs:296
  14: __rust_maybe_catch_panic
             at src/libpanic_unwind/lib.rs:80
  15: std::panicking::try
             at src/libstd/panicking.rs:275
  16: std::panic::catch_unwind
             at src/libstd/panic.rs:394
  17: std::rt::lang_start_internal
             at src/libstd/rt.rs:48
  18: main
  19: __libc_start_main
  20: _start
note: Some details are omitted, run with `RUST_BACKTRACE=full` for a verbose backtrace.

opened by matthiaskrgr 6

Fails to build on Windows with Clang

Trying to install cargo-udeps on Windows fails with these linker errors:


   liblibgit2_sys-ba969b860dee402e.rlib(refdb_fs.o) : error LNK2001: unresolved external symbol close
          liblibgit2_sys-ba969b860dee402e.rlib(midx.o) : error LNK2001: unresolved external symbol close
          liblibgit2_sys-ba969b860dee402e.rlib(sortedcache.o) : error LNK2001: unresolved external symbol close
          libcurl_sys-0d9aaa1630205f23.rlib(file.o) : error LNK2001: unresolved external symbol close
          liblibgit2_sys-ba969b860dee402e.rlib(pack.o) : error LNK2001: unresolved external symbol close
          liblibgit2_sys-ba969b860dee402e.rlib(mwindow.o) : error LNK2001: unresolved external symbol close
          liblibgit2_sys-ba969b860dee402e.rlib(diff_file.o) : error LNK2001: unresolved external symbol close
          liblibgit2_sys-ba969b860dee402e.rlib(hashsig.o) : error LNK2001: unresolved external symbol close
          liblibgit2_sys-ba969b860dee402e.rlib(filter.o) : error LNK2001: unresolved external symbol close
          liblibgit2_sys-ba969b860dee402e.rlib(odb_loose.o) : error LNK2001: unresolved external symbol close
          liblibgit2_sys-ba969b860dee402e.rlib(commit_graph.o) : error LNK2001: unresolved external symbol close
          liblibgit2_sys-ba969b860dee402e.rlib(indexer.o) : error LNK2001: unresolved external symbol close
          liblibgit2_sys-ba969b860dee402e.rlib(path.o) : error LNK2001: unresolved external symbol close
          liblibgit2_sys-ba969b860dee402e.rlib(attr_file.o) : error LNK2001: unresolved external symbol close
          liblibgit2_sys-ba969b860dee402e.rlib(posix_w32.o) : error LNK2001: unresolved external symbol close
          liblibgit2_sys-ba969b860dee402e.rlib(filebuf.o) : error LNK2001: unresolved external symbol close
          liblibgit2_sys-ba969b860dee402e.rlib(blob.o) : error LNK2001: unresolved external symbol close
          liblibgit2_sys-ba969b860dee402e.rlib(diff_generate.o) : error LNK2001: unresolved external symbol close
          liblibgit2_sys-ba969b860dee402e.rlib(index.o) : error LNK2001: unresolved external symbol close
          liblibgit2_sys-ba969b860dee402e.rlib(futils.o) : error LNK2001: unresolved external symbol close
          liblibgit2_sys-ba969b860dee402e.rlib(repository.o) : error LNK2001: unresolved external symbol close
          liblibgit2_sys-ba969b860dee402e.rlib(odb.o) : error LNK2001: unresolved external symbol close
          liblibgit2_sys-ba969b860dee402e.rlib(checkout.o) : error LNK2001: unresolved external symbol close
          liblibgit2_sys-ba969b860dee402e.rlib(worktree.o) : error LNK2001: unresolved external symbol close
          liblibgit2_sys-ba969b860dee402e.rlib(futils.o) : error LNK2019: unresolved external symbol umask referenced in function git_futils_mktmp
          liblibgit2_sys-ba969b860dee402e.rlib(posix.o) : error LNK2019: unresolved external symbol read referenced in function p_read
          libcurl_sys-0d9aaa1630205f23.rlib(warnless.o) : error LNK2001: unresolved external symbol read
          liblibgit2_sys-ba969b860dee402e.rlib(posix.o) : error LNK2019: unresolved external symbol write referenced in function p_write
          libcurl_sys-0d9aaa1630205f23.rlib(warnless.o) : error LNK2001: unresolved external symbol write
          libcurl_sys-0d9aaa1630205f23.rlib(vauth.o) : error LNK2001: unresolved external symbol strdup
          libcurl_sys-0d9aaa1630205f23.rlib(rename.o) : error LNK2001: unresolved external symbol strdup
          libcurl_sys-0d9aaa1630205f23.rlib(digest_sspi.o) : error LNK2001: unresolved external symbol strdup
          libcurl_sys-0d9aaa1630205f23.rlib(socks_sspi.o) : error LNK2001: unresolved external symbol strdup
          libcurl_sys-0d9aaa1630205f23.rlib(schannel_verify.o) : error LNK2001: unresolved external symbol strdup
          liblibgit2_sys-ba969b860dee402e.rlib(stdalloc.o) : error LNK2001: unresolved external symbol strdup
          libcurl_sys-0d9aaa1630205f23.rlib(easy.o) : error LNK2001: unresolved external symbol strdup
          libcurl_sys-0d9aaa1630205f23.rlib(schannel.o) : error LNK2001: unresolved external symbol strdup
          libcurl_sys-0d9aaa1630205f23.rlib(curl_sspi.o) : error LNK2001: unresolved external symbol strdup
          libcurl_sys-0d9aaa1630205f23.rlib(altsvc.o) : error LNK2019: unresolved external symbol unlink referenced in function Curl_altsvc_save
          libcurl_sys-0d9aaa1630205f23.rlib(hsts.o) : error LNK2001: unresolved external symbol unlink
          libcurl_sys-0d9aaa1630205f23.rlib(cookie.o) : error LNK2001: unresolved external symbol unlink
          C:\Users\aminy\AppData\Local\Temp\cargo-installxKwFuC\release\deps\cargo_udeps-06db0f18527d4785.exe : fatal error LNK1120: 6 unresolved externals

opened by aminya 5

False positives from derive macro
I'm running cargo udeps as this:

% cargo udeps --workspace --all-targets --backend save-analysis --show-unused-transitive

and getting a whole bunch of false positives, most of which are coming from either derive macro or macro in general.

It would be great to be able to pass something --no-proc-macro to automagically exclude derive macros from the output. It should be able to tell if something is a derive macro somewhere around cargo output.
opened by pacak 5
This crate does not work with the new workspace dependencies
The new workspace deps feature is explained here: https://betterprogramming.pub/workspace-inheritance-in-rust-65d0bb8f9424

Reproduction path:

Add random dependencies to your root Cargo.toml

Run this library

'All deps seem to be used' is shown, although the deps are not used.
opened by Jasperav 8

failed to download wasm-bindgen-futures

Executing cargo +nightly udeps in a workspace return this error

error: failed to download `wasm-bindgen-futures v0.4.33`

Caused by:
  unable to get packages from source

Caused by:
  failed to unpack package `wasm-bindgen-futures v0.4.33`

Caused by:
  failed to unpack entry at `wasm-bindgen-futures-0.4.33/LICENSE-APACHE`

Caused by:
  failed to unpack `/home/loris/.cargo/registry/src/github.com-1ecc6299db9ec823/wasm-bindgen-futures-0.4.33/LICENSE-APACHE`

Caused by:
  failed to unpack `wasm-bindgen-futures-0.4.33/LICENSE-APACHE` into `/home/loris/.cargo/registry/src/github.com-1ecc6299db9ec823/wasm-bindgen-futures-0.4.33/LICENSE-APACHE`

Caused by:
  unexpected end of file

opened by lorislibralato 0

Minor (cosmetic) - could `Loading save analysis` messages be suppressed?
Those are definitely useful as verbose/debug info but most of the time, why would the user care? Could they be hidden behind a verbose flag or even easier, and env var? (e.g. CARGO_UDEPS_VERBOSE)

Asking because the typical use case is...

$ cargo +nightly udeps <2 pages of 'info: Loading save analysis from ...'> All deps seem to have been used.

(apologies in advance if I'm missing something obvious here)
opened by aldanor 2
Automatically select nightly?

Would it be possible for cargo-udeps to detect that it is not being run on nightly, and re-run itself with nightly, to avoid the user needing to remember to +nightly it? cargo-expand does this, with this code.

opened by adamspofford-dfinity 0