[INFO] fetching crate blog-tools 0.2.1...
[INFO] checking blog-tools-0.2.1 against try#4f260f0f20b3133d20cfb50353c0221943af5796+rustflags=-Dunmustuse_in_always_ok for pr-148577
[INFO] extracting crate blog-tools 0.2.1 into /workspace/builds/worker-2-tc2/source
[INFO] started tweaking crates.io crate blog-tools 0.2.1
[INFO] removed 0 missing examples
[INFO] finished tweaking crates.io crate blog-tools 0.2.1
[INFO] tweaked toml for crates.io crate blog-tools 0.2.1 written to /workspace/builds/worker-2-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate blog-tools 0.2.1 on toolchain 4f260f0f20b3133d20cfb50353c0221943af5796
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+4f260f0f20b3133d20cfb50353c0221943af5796" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate blog-tools 0.2.1 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" "+4f260f0f20b3133d20cfb50353c0221943af5796" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+4f260f0f20b3133d20cfb50353c0221943af5796" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 96eabda439d68e0f024c794c30af17fd47a1f9ca295aa3152e038360bd1b61e8
[INFO] running `Command { std: "docker" "start" "-a" "96eabda439d68e0f024c794c30af17fd47a1f9ca295aa3152e038360bd1b61e8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "96eabda439d68e0f024c794c30af17fd47a1f9ca295aa3152e038360bd1b61e8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "96eabda439d68e0f024c794c30af17fd47a1f9ca295aa3152e038360bd1b61e8", kill_on_drop: false }`
[INFO] [stdout] 96eabda439d68e0f024c794c30af17fd47a1f9ca295aa3152e038360bd1b61e8
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/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 -Dunmustuse_in_always_ok" "-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+4f260f0f20b3133d20cfb50353c0221943af5796" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] fcb61cd0bd77af4d8c127cc7e0750b352ce42a470a092e15bc17cfbceed43aba
[INFO] running `Command { std: "docker" "start" "-a" "fcb61cd0bd77af4d8c127cc7e0750b352ce42a470a092e15bc17cfbceed43aba", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v2.0.82
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[INFO] [stderr]    Compiling rocket_http v0.5.1
[INFO] [stderr]     Checking rand_chacha v0.3.1
[INFO] [stderr]     Checking rand v0.8.5
[INFO] [stderr]    Compiling pest_meta v2.7.14
[INFO] [stderr]    Compiling pest_generator v2.7.14
[INFO] [stderr]    Compiling rocket_codegen v0.5.1
[INFO] [stderr]    Compiling pest_derive v2.7.14
[INFO] [stderr]     Checking tokio-util v0.7.12
[INFO] [stderr]     Checking tokio-stream v0.1.16
[INFO] [stderr]     Checking serde_spanned v0.6.8
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[INFO] [stderr]     Checking chrono v0.4.38
[INFO] [stderr]     Checking serde_json v1.0.132
[INFO] [stderr]     Checking ubyte v0.10.4
[INFO] [stderr]     Checking h2 v0.3.26
[INFO] [stderr]     Checking toml_edit v0.22.22
[INFO] [stderr]     Checking blog-tools v0.2.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Checking toml v0.8.19
[INFO] [stderr]     Checking tera v1.20.0
[INFO] [stderr]     Checking rocket_dyn_templates v0.1.0
[INFO] [stdout] error: this type will no longer be must used: Result<PathBuf, Infallible>
[INFO] [stdout]   --> examples/low/main.rs:54:33
[INFO] [stdout]    |
[INFO] [stdout] 54 |     let preview = preview_blogs(PathBuf::from_str(BLOG_ROOT).unwrap(), 2, None).unwrap();
[INFO] [stdout]    |                                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: requested on the command line with `-D unmustuse-in-always-ok`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<PathBuf, Infallible>
[INFO] [stdout]   --> examples/low/main.rs:55:34
[INFO] [stdout]    |
[INFO] [stdout] 55 |     let tags = get_blog_tag_list(PathBuf::from_str(BLOG_ROOT).unwrap()).unwrap();
[INFO] [stdout]    |                                  ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<PathBuf, Infallible>
[INFO] [stdout]   --> examples/low/main.rs:70:26
[INFO] [stdout]    |
[INFO] [stdout] 70 |         render_blog_post(PathBuf::from_str(BLOG_ROOT).unwrap(), date, slug, None).unwrap();
[INFO] [stdout]    |                          ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<std::string::String, Infallible>
[INFO] [stdout]   --> examples/low/main.rs:67:23
[INFO] [stdout]    |
[INFO] [stdout] 67 | fn blog_article(date: String, slug: String) -> Option<Template> {
[INFO] [stdout]    |                       ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<std::string::String, Infallible>
[INFO] [stdout]   --> examples/low/main.rs:67:37
[INFO] [stdout]    |
[INFO] [stdout] 67 | fn blog_article(date: String, slug: String) -> Option<Template> {
[INFO] [stdout]    |                                     ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<PathBuf, Infallible>
[INFO] [stdout]   --> examples/low/main.rs:81:30
[INFO] [stdout]    |
[INFO] [stdout] 81 |         preview_blogs_tagged(PathBuf::from_str(BLOG_ROOT).unwrap(), slug, None).unwrap();
[INFO] [stdout]    |                              ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<std::string::String, Infallible>
[INFO] [stdout]   --> examples/low/main.rs:77:19
[INFO] [stdout]    |
[INFO] [stdout] 77 | fn tag_page(slug: String) -> Option<Template> {
[INFO] [stdout]    |                   ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<PathBuf, Infallible>
[INFO] [stdout]   --> examples/medium/main.rs:68:21
[INFO] [stdout]    |
[INFO] [stdout] 68 |             .render(PathBuf::from_str(BLOG_ROOT).unwrap())
[INFO] [stdout]    |                     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: requested on the command line with `-D unmustuse-in-always-ok`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<std::string::String, Infallible>
[INFO] [stdout]   --> examples/medium/main.rs:56:23
[INFO] [stdout]    |
[INFO] [stdout] 56 | fn blog_article(date: String, slug: String) -> Option<Template> {
[INFO] [stdout]    |                       ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<std::string::String, Infallible>
[INFO] [stdout]   --> examples/medium/main.rs:56:37
[INFO] [stdout]    |
[INFO] [stdout] 56 | fn blog_article(date: String, slug: String) -> Option<Template> {
[INFO] [stdout]    |                                     ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<std::string::String, Infallible>
[INFO] [stdout]   --> examples/medium/main.rs:75:19
[INFO] [stdout]    |
[INFO] [stdout] 75 | fn tag_page(slug: String) -> Option<Template> {
[INFO] [stdout]    |                   ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `blog-tools` (example "low") due to 7 previous errors
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: could not compile `blog-tools` (example "medium") due to 4 previous errors
[INFO] [stdout] error: this type will no longer be must used: Result<std::string::String, Infallible>
[INFO] [stdout]   --> examples/high/main.rs:55:23
[INFO] [stdout]    |
[INFO] [stdout] 55 | fn blog_article(date: String, slug: String) -> Option<Template> {
[INFO] [stdout]    |                       ^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: requested on the command line with `-D unmustuse-in-always-ok`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<std::string::String, Infallible>
[INFO] [stdout]   --> examples/high/main.rs:55:37
[INFO] [stdout]    |
[INFO] [stdout] 55 | fn blog_article(date: String, slug: String) -> Option<Template> {
[INFO] [stdout]    |                                     ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<std::string::String, Infallible>
[INFO] [stdout]   --> examples/high/main.rs:68:19
[INFO] [stdout]    |
[INFO] [stdout] 68 | fn tag_page(slug: String) -> Option<Template> {
[INFO] [stdout]    |                   ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `blog-tools` (example "high") due to 3 previous errors
[INFO] running `Command { std: "docker" "inspect" "fcb61cd0bd77af4d8c127cc7e0750b352ce42a470a092e15bc17cfbceed43aba", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "fcb61cd0bd77af4d8c127cc7e0750b352ce42a470a092e15bc17cfbceed43aba", kill_on_drop: false }`
[INFO] [stdout] fcb61cd0bd77af4d8c127cc7e0750b352ce42a470a092e15bc17cfbceed43aba
