[INFO] cloning repository https://github.com/fallaciousreasoning/books-home
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/fallaciousreasoning/books-home" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ffallaciousreasoning%2Fbooks-home", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ffallaciousreasoning%2Fbooks-home'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 2ea318837f4ae9fc02f3ba4d7c6bbfd55fc7a92b
[INFO] building fallaciousreasoning/books-home against master#ad85bc524b1ad696e42061ad8338d382dffbdbe5 for pr-146237-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ffallaciousreasoning%2Fbooks-home" "/workspace/builds/worker-2-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2-tc1/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/fallaciousreasoning/books-home
[INFO] finished tweaking git repo https://github.com/fallaciousreasoning/books-home
[INFO] tweaked toml for git repo https://github.com/fallaciousreasoning/books-home written to /workspace/builds/worker-2-tc1/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/fallaciousreasoning/books-home on toolchain ad85bc524b1ad696e42061ad8338d382dffbdbe5
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+ad85bc524b1ad696e42061ad8338d382dffbdbe5" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/fallaciousreasoning/books-home already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+ad85bc524b1ad696e42061ad8338d382dffbdbe5" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating git repository `https://github.com/emilk/egui`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr] warning: Patch `eframe v0.12.0 (https://github.com/emilk/egui?branch=master#e320ef6c)` was not used in the crate graph.
[INFO] [stderr] Check that the patched package version and available features are compatible
[INFO] [stderr] with the dependency requirements. If the patch has a different version from
[INFO] [stderr] what is locked in the Cargo.lock file, run `cargo update` to use the new
[INFO] [stderr] version. This may also occur with an optional dependency that is not enabled.
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded open v1.7.0
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[INFO] [stderr]   Downloaded atomic_refcell v0.1.6
[INFO] [stderr]   Downloaded egui_web v0.11.0
[INFO] [stderr]   Downloaded serde_derive v1.0.123
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[INFO] [stderr]   Downloaded unicode-normalization v0.1.17
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[INFO] [stderr]   Downloaded eframe v0.11.0
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[INFO] [stderr]   Downloaded clipboard-win v3.1.1
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[INFO] [stderr]   Downloaded serde v1.0.123
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+ad85bc524b1ad696e42061ad8338d382dffbdbe5" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 9fe254912065cbf871b6a970a6a2702e35ac61355ba10e6cf5ea466e6af026e5
[INFO] running `Command { std: "docker" "start" "-a" "9fe254912065cbf871b6a970a6a2702e35ac61355ba10e6cf5ea466e6af026e5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "9fe254912065cbf871b6a970a6a2702e35ac61355ba10e6cf5ea466e6af026e5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9fe254912065cbf871b6a970a6a2702e35ac61355ba10e6cf5ea466e6af026e5", kill_on_drop: false }`
[INFO] [stdout] 9fe254912065cbf871b6a970a6a2702e35ac61355ba10e6cf5ea466e6af026e5
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+ad85bc524b1ad696e42061ad8338d382dffbdbe5" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 2a477a0fe2802d4e6b874c67eaf024ac83709c3549976dbaff3d2007bc8cc6ab
[INFO] running `Command { std: "docker" "start" "-a" "2a477a0fe2802d4e6b874c67eaf024ac83709c3549976dbaff3d2007bc8cc6ab", kill_on_drop: false }`
[INFO] [stderr] warning: Patch `eframe v0.12.0 (https://github.com/emilk/egui?branch=master#e320ef6c)` was not used in the crate graph.
[INFO] [stderr] Check that the patched package version and available features are compatible
[INFO] [stderr] with the dependency requirements. If the patch has a different version from
[INFO] [stderr] what is locked in the Cargo.lock file, run `cargo update` to use the new
[INFO] [stderr] version. This may also occur with an optional dependency that is not enabled.
[INFO] [stderr]    Compiling libc v0.2.86
[INFO] [stderr]    Compiling xml-rs v0.8.3
[INFO] [stderr]    Compiling pkg-config v0.3.19
[INFO] [stderr]    Compiling proc-macro2 v1.0.26
[INFO] [stderr]    Compiling log v0.4.14
[INFO] [stderr]    Compiling unicode-xid v0.2.1
[INFO] [stderr]    Compiling autocfg v1.0.1
[INFO] [stderr]    Compiling bitflags v1.2.1
[INFO] [stderr]    Compiling version_check v0.9.2
[INFO] [stderr]    Compiling once_cell v1.7.0
[INFO] [stderr]    Compiling memchr v2.4.0
[INFO] [stderr]    Compiling libloading v0.7.0
[INFO] [stderr]    Compiling khronos_api v3.1.0
[INFO] [stderr]    Compiling smallvec v1.6.1
[INFO] [stderr]    Compiling ttf-parser v0.6.2
[INFO] [stderr]    Compiling cfg-if v0.1.10
[INFO] [stderr]    Compiling dlib v0.5.0
[INFO] [stderr]    Compiling ab_glyph_rasterizer v0.1.4
[INFO] [stderr]    Compiling scoped-tls v1.0.0
[INFO] [stderr]    Compiling downcast-rs v1.2.0
[INFO] [stderr]    Compiling nix v0.18.0
[INFO] [stderr]    Compiling walkdir v2.3.1
[INFO] [stderr]    Compiling libloading v0.6.7
[INFO] [stderr]    Compiling maybe-uninit v2.0.0
[INFO] [stderr]    Compiling xdg v2.2.0
[INFO] [stderr]    Compiling getrandom v0.2.2
[INFO] [stderr]    Compiling quote v1.0.9
[INFO] [stderr]    Compiling nom v6.1.2
[INFO] [stderr]    Compiling ahash v0.7.2
[INFO] [stderr]    Compiling instant v0.1.9
[INFO] [stderr]    Compiling slab v0.4.2
[INFO] [stderr]    Compiling lock_api v0.4.2
[INFO] [stderr]    Compiling wayland-sys v0.28.5
[INFO] [stderr]    Compiling dlib v0.4.2
[INFO] [stderr]    Compiling x11-dl v2.18.5
[INFO] [stderr]    Compiling cc v1.0.67
[INFO] [stderr]    Compiling syn v1.0.68
[INFO] [stderr]    Compiling lazycell v1.3.0
[INFO] [stderr]    Compiling emath v0.11.0
[INFO] [stderr]    Compiling miniz_oxide v0.4.4
[INFO] [stderr]    Compiling num-traits v0.2.14
[INFO] [stderr]    Compiling memoffset v0.6.1
[INFO] [stderr]    Compiling crc32fast v1.2.1
[INFO] [stderr]    Compiling gimli v0.23.0
[INFO] [stderr]    Compiling wayland-scanner v0.28.5
[INFO] [stderr]    Compiling gl_generator v0.14.0
[INFO] [stderr]    Compiling atomic_refcell v0.1.6
[INFO] [stderr]    Compiling rustc-demangle v0.1.18
[INFO] [stderr]    Compiling owned_ttf_parser v0.6.0
[INFO] [stderr]    Compiling object v0.23.0
[INFO] [stderr]    Compiling rusttype v0.9.2
[INFO] [stderr]    Compiling takeable-option v0.5.0
[INFO] [stderr]    Compiling anyhow v1.0.40
[INFO] [stderr]    Compiling andrew v0.3.1
[INFO] [stderr]    Compiling ordered-float v2.1.1
[INFO] [stderr]    Compiling aho-corasick v0.7.18
[INFO] [stderr]    Compiling webbrowser v0.5.5
[INFO] [stderr]    Compiling regex-syntax v0.6.25
[INFO] [stderr]    Compiling bzip2-sys v0.1.10+1.0.8
[INFO] [stderr]    Compiling glutin_egl_sys v0.1.5
[INFO] [stderr]    Compiling glutin_glx_sys v0.1.7
[INFO] [stderr]    Compiling glium v0.29.0
[INFO] [stderr]    Compiling nix v0.20.0
[INFO] [stderr]    Compiling memmap2 v0.1.0
[INFO] [stderr]    Compiling net2 v0.2.37
[INFO] [stderr]    Compiling iovec v0.1.4
[INFO] [stderr]    Compiling xcb v0.9.0
[INFO] [stderr]    Compiling mio v0.6.23
[INFO] [stderr]    Compiling parking_lot_core v0.8.3
[INFO] [stderr]    Compiling wayland-client v0.28.5
[INFO] [stderr]    Compiling wayland-protocols v0.28.5
[INFO] [stderr]    Compiling parking_lot v0.11.1
[INFO] [stderr]    Compiling raw-window-handle v0.3.3
[INFO] [stderr]    Compiling shared_library v0.1.9
[INFO] [stderr]    Compiling epaint v0.11.0
[INFO] [stderr]    Compiling mio-extras v2.0.6
[INFO] [stderr]    Compiling osmesa-sys v0.1.2
[INFO] [stderr]    Compiling xcursor v0.3.3
[INFO] [stderr]    Compiling egui v0.11.0
[INFO] [stderr]    Compiling addr2line v0.14.1
[INFO] [stderr]    Compiling flate2 v1.0.20
[INFO] [stderr]    Compiling time v0.1.43
[INFO] [stderr]    Compiling backtrace v0.3.56
[INFO] [stderr]    Compiling bzip2 v0.3.3
[INFO] [stderr]    Compiling regex v1.5.4
[INFO] [stderr]    Compiling which v4.1.0
[INFO] [stderr]    Compiling open v1.7.0
[INFO] [stderr]    Compiling epi v0.11.0
[INFO] [stderr]    Compiling calloop v0.6.5
[INFO] [stderr]    Compiling thiserror-impl v1.0.24
[INFO] [stderr]    Compiling wayland-commons v0.28.5
[INFO] [stderr]    Compiling thiserror v1.0.24
[INFO] [stderr]    Compiling zip v0.5.12
[INFO] [stderr]    Compiling epub v1.2.3
[INFO] [stderr]    Compiling wayland-cursor v0.28.5
[INFO] [stderr]    Compiling wayland-egl v0.28.5
[INFO] [stderr]    Compiling x11-clipboard v0.5.1
[INFO] [stderr]    Compiling smithay-client-toolkit v0.12.2
[INFO] [stderr]    Compiling winit v0.24.0
[INFO] [stderr]    Compiling smithay-clipboard v0.6.3
[INFO] [stderr]    Compiling copypasta v0.7.1
[INFO] [stderr]    Compiling glutin v0.26.0
[INFO] [stderr]    Compiling egui_glium v0.11.0
[INFO] [stderr]    Compiling eframe v0.11.0
[INFO] [stderr]    Compiling books_home v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused imports: `fmt::format` and `path::Path`
[INFO] [stdout]  --> src/book_cover.rs:1:11
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::{fmt::format, path::Path};
[INFO] [stdout]   |           ^^^^^^^^^^^  ^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `book_paths`
[INFO] [stdout]   --> src/app.rs:94:33
[INFO] [stdout]    |
[INFO] [stdout] 94 |         let BooksHome { filter, book_paths, books } = self;
[INFO] [stdout]    |                                 ^^^^^^^^^^ help: try ignoring the field: `book_paths: _`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variants `Start`, `End`, and `SpaceBetween` are never constructed
[INFO] [stdout]  --> src/grid.rs:6:5
[INFO] [stdout]   |
[INFO] [stdout] 5 | pub enum Alignment {
[INFO] [stdout]   |          --------- variants in this enum
[INFO] [stdout] 6 |     Start,
[INFO] [stdout]   |     ^^^^^
[INFO] [stdout] 7 |     End,
[INFO] [stdout]   |     ^^^
[INFO] [stdout] 8 |     SpaceAround,
[INFO] [stdout] 9 |     SpaceBetween
[INFO] [stdout]   |     ^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused return value of `Ui::button` that must be used
[INFO] [stdout]   --> src/grid.rs:30:9
[INFO] [stdout]    |
[INFO] [stdout] 30 |         ui.button(" < ");
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: You should check if the user clicked this with `if ui.button(…).clicked() { … } 
[INFO] [stdout]    = note: `#[warn(unused_must_use)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]    |
[INFO] [stdout] 30 |         let _ = ui.button(" < ");
[INFO] [stdout]    |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused return value of `Ui::button` that must be used
[INFO] [stdout]   --> src/grid.rs:32:9
[INFO] [stdout]    |
[INFO] [stdout] 32 |         ui.button(" > ");
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: You should check if the user clicked this with `if ui.button(…).clicked() { … } 
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]    |
[INFO] [stdout] 32 |         let _ = ui.button(" > ");
[INFO] [stdout]    |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 1m 33s
[INFO] [stderr] warning: the following packages contain code that will be rejected by a future version of Rust: nom v6.1.2
[INFO] [stderr] note: to see what the problems were, use the option `--future-incompat-report`, or run `cargo report future-incompatibilities --id 1`
[INFO] running `Command { std: "docker" "inspect" "2a477a0fe2802d4e6b874c67eaf024ac83709c3549976dbaff3d2007bc8cc6ab", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2a477a0fe2802d4e6b874c67eaf024ac83709c3549976dbaff3d2007bc8cc6ab", kill_on_drop: false }`
[INFO] [stdout] 2a477a0fe2802d4e6b874c67eaf024ac83709c3549976dbaff3d2007bc8cc6ab
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+ad85bc524b1ad696e42061ad8338d382dffbdbe5" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] e1050852b3b1d3266ccf21e50c5e0d8f505ba63027dbb6bd42075fb23cc171cf
[INFO] running `Command { std: "docker" "start" "-a" "e1050852b3b1d3266ccf21e50c5e0d8f505ba63027dbb6bd42075fb23cc171cf", kill_on_drop: false }`
[INFO] [stderr] warning: Patch `eframe v0.12.0 (https://github.com/emilk/egui?branch=master#e320ef6c)` was not used in the crate graph.
[INFO] [stderr] Check that the patched package version and available features are compatible
[INFO] [stderr] with the dependency requirements. If the patch has a different version from
[INFO] [stderr] what is locked in the Cargo.lock file, run `cargo update` to use the new
[INFO] [stderr] version. This may also occur with an optional dependency that is not enabled.
[INFO] [stdout] warning: unused imports: `fmt::format` and `path::Path`
[INFO] [stdout]  --> src/book_cover.rs:1:11
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::{fmt::format, path::Path};
[INFO] [stdout]   |           ^^^^^^^^^^^  ^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `book_paths`
[INFO] [stdout]   --> src/app.rs:94:33
[INFO] [stdout]    |
[INFO] [stdout] 94 |         let BooksHome { filter, book_paths, books } = self;
[INFO] [stdout]    |                                 ^^^^^^^^^^ help: try ignoring the field: `book_paths: _`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variants `Start`, `End`, and `SpaceBetween` are never constructed
[INFO] [stdout]  --> src/grid.rs:6:5
[INFO] [stdout]   |
[INFO] [stdout] 5 | pub enum Alignment {
[INFO] [stdout]   |          --------- variants in this enum
[INFO] [stdout] 6 |     Start,
[INFO] [stdout]   |     ^^^^^
[INFO] [stdout] 7 |     End,
[INFO] [stdout]   |     ^^^
[INFO] [stdout] 8 |     SpaceAround,
[INFO] [stdout] 9 |     SpaceBetween
[INFO] [stdout]   |     ^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused return value of `Ui::button` that must be used
[INFO] [stdout]   --> src/grid.rs:30:9
[INFO] [stdout]    |
[INFO] [stdout] 30 |         ui.button(" < ");
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: You should check if the user clicked this with `if ui.button(…).clicked() { … } 
[INFO] [stdout]    = note: `#[warn(unused_must_use)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]    |
[INFO] [stdout] 30 |         let _ = ui.button(" < ");
[INFO] [stdout]    |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused return value of `Ui::button` that must be used
[INFO] [stdout]   --> src/grid.rs:32:9
[INFO] [stdout]    |
[INFO] [stdout] 32 |         ui.button(" > ");
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: You should check if the user clicked this with `if ui.button(…).clicked() { … } 
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]    |
[INFO] [stdout] 32 |         let _ = ui.button(" > ");
[INFO] [stdout]    |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling books_home v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused imports: `fmt::format` and `path::Path`
[INFO] [stdout]  --> src/book_cover.rs:1:11
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::{fmt::format, path::Path};
[INFO] [stdout]   |           ^^^^^^^^^^^  ^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `book_paths`
[INFO] [stdout]   --> src/app.rs:94:33
[INFO] [stdout]    |
[INFO] [stdout] 94 |         let BooksHome { filter, book_paths, books } = self;
[INFO] [stdout]    |                                 ^^^^^^^^^^ help: try ignoring the field: `book_paths: _`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variants `Start`, `End`, and `SpaceBetween` are never constructed
[INFO] [stdout]  --> src/grid.rs:6:5
[INFO] [stdout]   |
[INFO] [stdout] 5 | pub enum Alignment {
[INFO] [stdout]   |          --------- variants in this enum
[INFO] [stdout] 6 |     Start,
[INFO] [stdout]   |     ^^^^^
[INFO] [stdout] 7 |     End,
[INFO] [stdout]   |     ^^^
[INFO] [stdout] 8 |     SpaceAround,
[INFO] [stdout] 9 |     SpaceBetween
[INFO] [stdout]   |     ^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused return value of `Ui::button` that must be used
[INFO] [stdout]   --> src/grid.rs:30:9
[INFO] [stdout]    |
[INFO] [stdout] 30 |         ui.button(" < ");
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: You should check if the user clicked this with `if ui.button(…).clicked() { … } 
[INFO] [stdout]    = note: `#[warn(unused_must_use)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]    |
[INFO] [stdout] 30 |         let _ = ui.button(" < ");
[INFO] [stdout]    |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused return value of `Ui::button` that must be used
[INFO] [stdout]   --> src/grid.rs:32:9
[INFO] [stdout]    |
[INFO] [stdout] 32 |         ui.button(" > ");
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: You should check if the user clicked this with `if ui.button(…).clicked() { … } 
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]    |
[INFO] [stdout] 32 |         let _ = ui.button(" > ");
[INFO] [stdout]    |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.80s
[INFO] [stderr] warning: the following packages contain code that will be rejected by a future version of Rust: nom v6.1.2
[INFO] [stderr] note: to see what the problems were, use the option `--future-incompat-report`, or run `cargo report future-incompatibilities --id 1`
[INFO] running `Command { std: "docker" "inspect" "e1050852b3b1d3266ccf21e50c5e0d8f505ba63027dbb6bd42075fb23cc171cf", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e1050852b3b1d3266ccf21e50c5e0d8f505ba63027dbb6bd42075fb23cc171cf", kill_on_drop: false }`
[INFO] [stdout] e1050852b3b1d3266ccf21e50c5e0d8f505ba63027dbb6bd42075fb23cc171cf