[INFO] cloning repository https://github.com/lvaylet/fun-with-maths [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/lvaylet/fun-with-maths" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Flvaylet%2Ffun-with-maths", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Flvaylet%2Ffun-with-maths'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] 94c8b4223fb75b9b63ae7651705767fc4ce2d3cf [INFO] checking lvaylet/fun-with-maths against try#4f260f0f20b3133d20cfb50353c0221943af5796+rustflags=-Dunmustuse_in_always_ok for pr-148577 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Flvaylet%2Ffun-with-maths" "/workspace/builds/worker-5-tc2/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-5-tc2/source'... [INFO] [stderr] done. [INFO] started tweaking git repo https://github.com/lvaylet/fun-with-maths [INFO] finished tweaking git repo https://github.com/lvaylet/fun-with-maths [INFO] tweaked toml for git repo https://github.com/lvaylet/fun-with-maths written to /workspace/builds/worker-5-tc2/source/Cargo.toml [INFO] validating manifest of git repo https://github.com/lvaylet/fun-with-maths 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 git repo https://github.com/lvaylet/fun-with-maths 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-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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] 441554df714da71a11dceab9f1ac0242305eacb37137e1b07909ef53e5739bbc [INFO] running `Command { std: "docker" "start" "-a" "441554df714da71a11dceab9f1ac0242305eacb37137e1b07909ef53e5739bbc", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "441554df714da71a11dceab9f1ac0242305eacb37137e1b07909ef53e5739bbc", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "441554df714da71a11dceab9f1ac0242305eacb37137e1b07909ef53e5739bbc", kill_on_drop: false }` [INFO] [stdout] 441554df714da71a11dceab9f1ac0242305eacb37137e1b07909ef53e5739bbc [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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] 3b31c9ca6c9f0d7358c976fe2e6efd248bfcf496d0cd5144dbaa5c55d03b96e7 [INFO] running `Command { std: "docker" "start" "-a" "3b31c9ca6c9f0d7358c976fe2e6efd248bfcf496d0cd5144dbaa5c55d03b96e7", kill_on_drop: false }` [INFO] [stderr] Compiling libc v0.2.171 [INFO] [stderr] Checking smallvec v1.14.0 [INFO] [stderr] Compiling zerocopy v0.8.24 [INFO] [stderr] Compiling syn v2.0.100 [INFO] [stderr] Compiling getrandom v0.3.2 [INFO] [stderr] Checking once_cell v1.21.1 [INFO] [stderr] Checking futures-util v0.3.31 [INFO] [stderr] Checking indexmap v2.8.0 [INFO] [stderr] Compiling mime_guess v2.0.5 [INFO] [stderr] Compiling multer v2.1.0 [INFO] [stderr] Checking headers-core v0.2.0 [INFO] [stderr] Checking headers v0.3.9 [INFO] [stderr] Checking tracing-core v0.1.33 [INFO] [stderr] Checking tracing v0.1.41 [INFO] [stderr] Checking parking_lot_core v0.9.10 [INFO] [stderr] Checking signal-hook-registry v1.4.2 [INFO] [stderr] Checking mio v1.0.3 [INFO] [stderr] Checking socket2 v0.5.8 [INFO] [stderr] Checking getrandom v0.2.15 [INFO] [stderr] Checking parking_lot v0.12.3 [INFO] [stderr] Checking rand_core v0.6.4 [INFO] [stderr] Checking rand_core v0.9.3 [INFO] [stderr] Checking ppv-lite86 v0.2.21 [INFO] [stderr] Checking rand_chacha v0.3.1 [INFO] [stderr] Checking rand_chacha v0.9.0 [INFO] [stderr] Checking rand v0.8.5 [INFO] [stderr] Checking rand v0.9.0 [INFO] [stderr] Compiling synstructure v0.13.1 [INFO] [stderr] Compiling zerofrom-derive v0.1.6 [INFO] [stderr] Compiling yoke-derive v0.7.5 [INFO] [stderr] Compiling zerovec-derive v0.10.3 [INFO] [stderr] Compiling displaydoc v0.2.5 [INFO] [stderr] Compiling icu_provider_macros v1.5.0 [INFO] [stderr] Compiling tokio-macros v2.5.0 [INFO] [stderr] Compiling serde_derive v1.0.219 [INFO] [stderr] Compiling thiserror-impl v1.0.69 [INFO] [stderr] Compiling pin-project-internal v1.1.10 [INFO] [stderr] Checking tokio v1.44.2 [INFO] [stderr] Checking pin-project v1.1.10 [INFO] [stderr] Checking zerofrom v0.1.6 [INFO] [stderr] Checking yoke v0.7.5 [INFO] [stderr] Checking thiserror v1.0.69 [INFO] [stderr] Checking zerovec v0.10.4 [INFO] [stderr] Checking tinystr v0.7.6 [INFO] [stderr] Checking icu_collections v1.5.0 [INFO] [stderr] Checking serde v1.0.219 [INFO] [stderr] Checking icu_locid v1.5.0 [INFO] [stderr] Checking icu_provider v1.5.0 [INFO] [stderr] Checking icu_locid_transform v1.5.0 [INFO] [stderr] Checking icu_properties v1.5.1 [INFO] [stderr] Checking tokio-util v0.7.14 [INFO] [stderr] Checking serde_urlencoded v0.7.1 [INFO] [stderr] Checking serde_json v1.0.140 [INFO] [stderr] Checking h2 v0.3.26 [INFO] [stderr] Checking icu_normalizer v1.5.0 [INFO] [stderr] Checking idna_adapter v1.2.0 [INFO] [stderr] Checking idna v1.0.3 [INFO] [stderr] Checking url v2.5.4 [INFO] [stderr] Checking tungstenite v0.21.0 [INFO] [stderr] Checking tokio-tungstenite v0.21.0 [INFO] [stderr] Checking hyper v0.14.32 [INFO] [stderr] Checking warp v0.3.7 [INFO] [stderr] Checking fun-with-maths v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] error: this type will no longer be must used: Result [INFO] [stdout] --> src/main.rs:64:68 [INFO] [stdout] | [INFO] [stdout] 64 | async fn handle_question() -> Result { [INFO] [stdout] | ____________________________________________________________________^ [INFO] [stdout] 65 | | let question = generate_question(); [INFO] [stdout] 66 | | Ok(warp::reply::json(&question)) [INFO] [stdout] 67 | | } [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 [INFO] [stdout] --> src/main.rs:64:68 [INFO] [stdout] | [INFO] [stdout] 64 | async fn handle_question() -> Result { [INFO] [stdout] | ____________________________________________________________________^ [INFO] [stdout] 65 | | let question = generate_question(); [INFO] [stdout] 66 | | Ok(warp::reply::json(&question)) [INFO] [stdout] 67 | | } [INFO] [stdout] | |_^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: this type will no longer be must used: Result [INFO] [stdout] --> src/main.rs:66:5 [INFO] [stdout] | [INFO] [stdout] 66 | Ok(warp::reply::json(&question)) [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: this type will no longer be must used: Result [INFO] [stdout] --> src/main.rs:71:43 [INFO] [stdout] | [INFO] [stdout] 71 | ) -> Result { [INFO] [stdout] | ___________________________________________^ [INFO] [stdout] 72 | | let correct = request.answer == request.question.correct_answer; [INFO] [stdout] 73 | | Ok(warp::reply::json(&correct)) [INFO] [stdout] 74 | | } [INFO] [stdout] | |_^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: this type will no longer be must used: Result [INFO] [stdout] --> src/main.rs:71:43 [INFO] [stdout] | [INFO] [stdout] 71 | ) -> Result { [INFO] [stdout] | ___________________________________________^ [INFO] [stdout] 72 | | let correct = request.answer == request.question.correct_answer; [INFO] [stdout] 73 | | Ok(warp::reply::json(&correct)) [INFO] [stdout] 74 | | } [INFO] [stdout] | |_^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: this type will no longer be must used: Result [INFO] [stdout] --> src/main.rs:73:5 [INFO] [stdout] | [INFO] [stdout] 73 | Ok(warp::reply::json(&correct)) [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] error: could not compile `fun-with-maths` (bin "fun-with-maths") due to 6 previous errors [INFO] [stderr] warning: build failed, waiting for other jobs to finish... [INFO] [stdout] error: this type will no longer be must used: Result [INFO] [stdout] --> src/main.rs:64:68 [INFO] [stdout] | [INFO] [stdout] 64 | async fn handle_question() -> Result { [INFO] [stdout] | ____________________________________________________________________^ [INFO] [stdout] 65 | | let question = generate_question(); [INFO] [stdout] 66 | | Ok(warp::reply::json(&question)) [INFO] [stdout] 67 | | } [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 [INFO] [stdout] --> src/main.rs:64:68 [INFO] [stdout] | [INFO] [stdout] 64 | async fn handle_question() -> Result { [INFO] [stdout] | ____________________________________________________________________^ [INFO] [stdout] 65 | | let question = generate_question(); [INFO] [stdout] 66 | | Ok(warp::reply::json(&question)) [INFO] [stdout] 67 | | } [INFO] [stdout] | |_^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: this type will no longer be must used: Result [INFO] [stdout] --> src/main.rs:66:5 [INFO] [stdout] | [INFO] [stdout] 66 | Ok(warp::reply::json(&question)) [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: this type will no longer be must used: Result [INFO] [stdout] --> src/main.rs:71:43 [INFO] [stdout] | [INFO] [stdout] 71 | ) -> Result { [INFO] [stdout] | ___________________________________________^ [INFO] [stdout] 72 | | let correct = request.answer == request.question.correct_answer; [INFO] [stdout] 73 | | Ok(warp::reply::json(&correct)) [INFO] [stdout] 74 | | } [INFO] [stdout] | |_^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: this type will no longer be must used: Result [INFO] [stdout] --> src/main.rs:71:43 [INFO] [stdout] | [INFO] [stdout] 71 | ) -> Result { [INFO] [stdout] | ___________________________________________^ [INFO] [stdout] 72 | | let correct = request.answer == request.question.correct_answer; [INFO] [stdout] 73 | | Ok(warp::reply::json(&correct)) [INFO] [stdout] 74 | | } [INFO] [stdout] | |_^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: this type will no longer be must used: Result [INFO] [stdout] --> src/main.rs:73:5 [INFO] [stdout] | [INFO] [stdout] 73 | Ok(warp::reply::json(&correct)) [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] error: could not compile `fun-with-maths` (bin "fun-with-maths" test) due to 6 previous errors [INFO] running `Command { std: "docker" "inspect" "3b31c9ca6c9f0d7358c976fe2e6efd248bfcf496d0cd5144dbaa5c55d03b96e7", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "3b31c9ca6c9f0d7358c976fe2e6efd248bfcf496d0cd5144dbaa5c55d03b96e7", kill_on_drop: false }` [INFO] [stdout] 3b31c9ca6c9f0d7358c976fe2e6efd248bfcf496d0cd5144dbaa5c55d03b96e7