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 for submit@bugs.debian.org; Tue, 29 Sep 2026 22:19:32 +0000
From: Santiago Vila &lt;sanvila@debian.org&gt;
To: Debian BTS &lt;submit@bugs.debian.org&gt;
Subject: gnome-tour: FTBFS: error[E0034]: multiple applicable items in scope
X-Debbugs-Cc: sanvila@debian.org
Message-Id: &lt;E1xBgAe-00BZU9-0g@paradis.debian.org&gt;
Date: Tue, 29 Sep 2026 22:19:32 +0000
Delivered-To: submit@bugs.debian.org

Package: src:gnome-tour
Version: 50.0-1
Severity: serious
Tags: ftbfs forky sid

Dear maintainer:

During a rebuild of all packages in unstable, this package failed to build.

Below you will find the last part of the build log (probably the most
relevant part, but not necessarily). If required, the full build log
is available here:

https://people.debian.org/~sanvila/build-logs/202609/

About the archive rebuild: The build was made on virtual machines from AWS,
using sbuild and a reduced chroot with only build-essential packages.

If you cannot reproduce the bug please contact me privately, as I
am willing to provide ssh access to a virtual machine where the bug is
fully reproducible.

If this is really a bug in one of the build-depends, please use
reassign and add an affects on src:gnome-tour, so that this is still
visible in the BTS web page for this package.

Thanks.

--------------------------------------------------------------------------------
[...]
   |
37 -                     win.close();
37 +                     gtk4::prelude::GtkWindowExt::close(&amp;win);
   |

error[E0034]: multiple applicable items in scope
  --&gt; src/widgets/window.rs:57:20
   |
57 |             widget.set_icon_name(Some(config::APP_ID));
   |                    ^^^^^^^^^^^^^ multiple `set_icon_name` found
   |
   = note: candidate #1 is defined in an impl of the trait `gtk4::prelude::ButtonExt` for the type `O`
   = note: candidate #2 is defined in an impl of the trait `gtk4::prelude::GdkAppLaunchContextExt` for the type `O`
   = note: candidate #3 is defined in an impl of the trait `gtk4::prelude::GtkWindowExt` for the type `O`
   = note: candidate #4 is defined in an impl of the trait `libadwaita::prelude::ActionRowExt` for the type `O`
   = note: and 2 others
help: disambiguate the method for candidate #1
   |
57 -             widget.set_icon_name(Some(config::APP_ID));
57 +             gtk4::prelude::ButtonExt::set_icon_name(&amp;widget, Some(config::APP_ID));
   |
help: disambiguate the method for candidate #2
   |
57 -             widget.set_icon_name(Some(config::APP_ID));
57 +             gtk4::prelude::GdkAppLaunchContextExt::set_icon_name(&amp;widget, Some(config::APP_ID));
   |
help: disambiguate the method for candidate #3
   |
57 -             widget.set_icon_name(Some(config::APP_ID));
57 +             gtk4::prelude::GtkWindowExt::set_icon_name(&amp;widget, Some(config::APP_ID));
   |
help: disambiguate the method for candidate #4
   |
57 -             widget.set_icon_name(Some(config::APP_ID));
57 +             libadwaita::prelude::ActionRowExt::set_icon_name(&amp;widget, Some(config::APP_ID));
   |

Some errors have detailed explanations: E0034, E0425.
For more information about an error, try `rustc --explain E0034`.
error: could not compile `gnome-tour` (bin &quot;gnome-tour&quot;) due to 6 previous errors
FAILED: [code=101] src/gnome-tour 
/usr/bin/cargo build --manifest-path /&lt;&lt;PKGBUILDDIR&gt;&gt;/Cargo.toml --target-dir /&lt;&lt;PKGBUILDDIR&gt;&gt;/obj-x86_64-linux-gnu/src --release &amp;&amp; cp src/release/gnome-tour src/gnome-tour
ninja: build stopped: subcommand failed.
dh_auto_build: error: cd obj-x86_64-linux-gnu &amp;&amp; LC_ALL=C.UTF-8 ninja -j1 -v returned exit code 101
make: *** [debian/rules:15: binary] Error 25
dpkg-buildpackage: error: debian/rules binary subprocess failed with exit status 2
--------------------------------------------------------------------------------
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