[INFO] cloning repository https://github.com/pi-181/num-methods-lab4-rs [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/pi-181/num-methods-lab4-rs" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fpi-181%2Fnum-methods-lab4-rs", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fpi-181%2Fnum-methods-lab4-rs'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] f2b9111bbecafc201631522b631992dc959be581 [INFO] checking pi-181/num-methods-lab4-rs against try#3e59a8c2f14152ccc92a6c079f592dc2dc6fa93f for pr-87248 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fpi-181%2Fnum-methods-lab4-rs" "/workspace/builds/worker-1/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-1/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/pi-181/num-methods-lab4-rs on toolchain 3e59a8c2f14152ccc92a6c079f592dc2dc6fa93f [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+3e59a8c2f14152ccc92a6c079f592dc2dc6fa93f" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking git repo https://github.com/pi-181/num-methods-lab4-rs [INFO] finished tweaking git repo https://github.com/pi-181/num-methods-lab4-rs [INFO] tweaked toml for git repo https://github.com/pi-181/num-methods-lab4-rs written to /workspace/builds/worker-1/source/Cargo.toml [INFO] crate git repo https://github.com/pi-181/num-methods-lab4-rs already has a lockfile, it will not be regenerated [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+3e59a8c2f14152ccc92a6c079f592dc2dc6fa93f" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] [stderr] Downloading crates ... 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Memory limited without swap. [INFO] [stdout] 2382809b1fb8ee2c1b2b48397276943a9339dcd57b3b7f7c537f34745acbbf83 [INFO] running `Command { std: "docker" "start" "-a" "2382809b1fb8ee2c1b2b48397276943a9339dcd57b3b7f7c537f34745acbbf83", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "2382809b1fb8ee2c1b2b48397276943a9339dcd57b3b7f7c537f34745acbbf83", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "2382809b1fb8ee2c1b2b48397276943a9339dcd57b3b7f7c537f34745acbbf83", kill_on_drop: false }` [INFO] [stdout] 2382809b1fb8ee2c1b2b48397276943a9339dcd57b3b7f7c537f34745acbbf83 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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" "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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+3e59a8c2f14152ccc92a6c079f592dc2dc6fa93f" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] b03ab968dd05f7c2adc5295aba0e1e94581fca1fb16e02a019ff0fa6acd58d4f [INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. 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[INFO] running `Command { std: "docker" "start" "-a" "b03ab968dd05f7c2adc5295aba0e1e94581fca1fb16e02a019ff0fa6acd58d4f", kill_on_drop: false }` [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] [stderr] Compiling maybe-uninit v2.0.0 [INFO] [stderr] Compiling xml-rs v0.8.2 [INFO] [stderr] Compiling semver-parser v0.7.0 [INFO] [stderr] Compiling unicode-xid v0.2.0 [INFO] [stderr] Checking same-file v1.0.6 [INFO] [stderr] Compiling syn v1.0.17 [INFO] [stderr] Compiling proc-macro-nested v0.1.4 [INFO] [stderr] Checking ppv-lite86 v0.2.6 [INFO] [stderr] Checking downcast-rs v1.1.1 [INFO] [stderr] Compiling proc-macro-hack v0.5.15 [INFO] [stderr] Checking futures-sink v0.3.4 [INFO] [stderr] Compiling arrayvec v0.4.12 [INFO] [stderr] Checking atom v0.3.5 [INFO] [stderr] Checking arrayvec v0.5.1 [INFO] [stderr] Checking copyless v0.1.4 [INFO] [stderr] Checking iced_core v0.2.0 [INFO] [stderr] Checking 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getrandom v0.1.14 [INFO] [stderr] Checking memmap v0.7.0 [INFO] [stderr] Checking shared_library v0.1.9 [INFO] [stderr] Checking parking_lot_core v0.7.1 [INFO] [stderr] Checking dirs v1.0.5 [INFO] [stderr] Compiling xcb v0.9.0 [INFO] [stderr] Checking nix v0.14.1 [INFO] [stderr] Checking stb_truetype v0.3.1 [INFO] [stderr] Checking relevant v0.4.2 [INFO] [stderr] Compiling rustc_version v0.2.3 [INFO] [stderr] Compiling wayland-scanner v0.23.6 [INFO] [stderr] Compiling syn v0.15.44 [INFO] [stderr] Compiling servo-freetype-sys v4.0.5 [INFO] [stderr] Compiling expat-sys v2.1.6 [INFO] [stderr] Checking smallvec v0.6.13 [INFO] [stderr] Checking ash v0.29.0 [INFO] [stderr] Checking mio v0.6.21 [INFO] [stderr] Compiling quote v1.0.3 [INFO] [stderr] Checking rand_core v0.5.1 [INFO] [stderr] Checking parking_lot v0.10.2 [INFO] [stderr] Checking dlib v0.4.1 [INFO] [stderr] Checking gfx-hal v0.4.1 [INFO] [stderr] Compiling parking_lot_core v0.6.2 [INFO] [stderr] Compiling parking_lot v0.9.0 [INFO] [stderr] Checking rand_chacha v0.2.2 [INFO] [stderr] Checking mio-extras v2.0.6 [INFO] [stderr] Checking approx v0.3.2 [INFO] [stderr] Checking ordered-float v1.0.2 [INFO] [stderr] Checking line_drawing v0.7.0 [INFO] [stderr] Checking euclid v0.20.10 [INFO] [stderr] Checking wayland-sys v0.23.6 [INFO] [stderr] Checking rand v0.7.3 [INFO] [stderr] Checking crossbeam-deque v0.7.3 [INFO] [stderr] Checking freetype v0.4.1 [INFO] [stderr] Checking servo-fontconfig v0.4.0 [INFO] [stderr] Checking rusttype v0.8.3 [INFO] [stderr] Checking rusttype v0.7.9 [INFO] [stderr] Checking glyph_brush_layout v0.1.9 [INFO] [stderr] Compiling wayland-client v0.23.6 [INFO] [stderr] Compiling wayland-protocols v0.23.6 [INFO] [stderr] Checking twox-hash v1.5.0 [INFO] [stderr] Checking wayland-commons v0.23.6 [INFO] [stderr] Checking calloop v0.4.4 [INFO] [stderr] Checking lyon_geom v0.14.1 [INFO] [stderr] Checking andrew v0.2.1 [INFO] [stderr] Checking glyph_brush v0.6.3 [INFO] [stderr] Checking 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Checking clipboard_wayland v0.1.0 [INFO] [stderr] Checking iced_native v0.2.0 [INFO] [stderr] Checking window_clipboard v0.1.1 [INFO] [stderr] Checking iced_winit v0.1.0 [INFO] [stderr] Checking wgpu v0.4.0 [INFO] [stderr] Checking wgpu_glyph v0.7.0 [INFO] [stderr] Checking iced_wgpu v0.2.0 [INFO] [stderr] Checking iced v0.1.0 [INFO] [stderr] Checking num-methods-lab4 v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: unused borrow that must be used [INFO] [stdout] --> src/main.rs:250:21 [INFO] [stdout] | [INFO] [stdout] 250 | &self.result_text_value.clear(); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_must_use)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused borrow that must be used [INFO] [stdout] --> src/main.rs:251:21 [INFO] [stdout] | [INFO] [stdout] 251 | &self.result_text_value.push_str("An error occurred."); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused borrow that must be used [INFO] [stdout] --> src/main.rs:256:17 [INFO] [stdout] | [INFO] [stdout] 256 | &self.result_text_value.clear(); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused borrow that must be used [INFO] [stdout] --> src/main.rs:257:17 [INFO] [stdout] | [INFO] [stdout] 257 | &self.result_text_value.push_str(result.as_str()); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused borrow that must be used [INFO] [stdout] --> src/main.rs:262:21 [INFO] [stdout] | [INFO] [stdout] 262 | &self.result_text_value.clear(); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused borrow that must be used [INFO] [stdout] --> src/main.rs:263:21 [INFO] [stdout] | [INFO] [stdout] 263 | &self.result_text_value.push_str("An error occurred."); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused borrow that must be used [INFO] [stdout] --> src/main.rs:268:17 [INFO] [stdout] | [INFO] [stdout] 268 | &self.result_text_value.clear(); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused borrow that must be used [INFO] [stdout] --> src/main.rs:269:17 [INFO] [stdout] | [INFO] [stdout] 269 | &self.result_text_value.push_str(result.as_str()); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused borrow that must be used [INFO] [stdout] --> src/main.rs:274:21 [INFO] [stdout] | [INFO] [stdout] 274 | &self.result_text_value.clear(); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused borrow that must be used [INFO] [stdout] --> src/main.rs:275:21 [INFO] [stdout] | [INFO] [stdout] 275 | &self.result_text_value.push_str("An error occurred."); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused borrow that must be used [INFO] [stdout] --> src/main.rs:280:17 [INFO] [stdout] | [INFO] [stdout] 280 | &self.result_text_value.clear(); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused borrow that must be used [INFO] [stdout] --> src/main.rs:281:17 [INFO] [stdout] | [INFO] [stdout] 281 | &self.result_text_value.push_str(result.as_str()); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 12 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused borrow that must be used [INFO] [stdout] --> src/main.rs:250:21 [INFO] [stdout] | [INFO] [stdout] 250 | &self.result_text_value.clear(); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_must_use)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused borrow that must be used [INFO] [stdout] --> src/main.rs:251:21 [INFO] [stdout] | [INFO] [stdout] 251 | &self.result_text_value.push_str("An error occurred."); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused borrow that must be used [INFO] [stdout] --> src/main.rs:256:17 [INFO] [stdout] | [INFO] [stdout] 256 | &self.result_text_value.clear(); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused borrow that must be used [INFO] [stdout] --> src/main.rs:257:17 [INFO] [stdout] | [INFO] [stdout] 257 | &self.result_text_value.push_str(result.as_str()); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused borrow that must be used [INFO] [stdout] --> src/main.rs:262:21 [INFO] [stdout] | [INFO] [stdout] 262 | &self.result_text_value.clear(); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused borrow that must be used [INFO] [stdout] --> src/main.rs:263:21 [INFO] [stdout] | [INFO] [stdout] 263 | &self.result_text_value.push_str("An error occurred."); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused borrow that must be used [INFO] [stdout] --> src/main.rs:268:17 [INFO] [stdout] | [INFO] [stdout] 268 | &self.result_text_value.clear(); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused borrow that must be used [INFO] [stdout] --> src/main.rs:269:17 [INFO] [stdout] | [INFO] [stdout] 269 | &self.result_text_value.push_str(result.as_str()); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused borrow that must be used [INFO] [stdout] --> src/main.rs:274:21 [INFO] [stdout] | [INFO] [stdout] 274 | &self.result_text_value.clear(); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused borrow that must be used [INFO] [stdout] --> src/main.rs:275:21 [INFO] [stdout] | [INFO] [stdout] 275 | &self.result_text_value.push_str("An error occurred."); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused borrow that must be used [INFO] [stdout] --> src/main.rs:280:17 [INFO] [stdout] | [INFO] [stdout] 280 | &self.result_text_value.clear(); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused borrow that must be used [INFO] [stdout] --> src/main.rs:281:17 [INFO] [stdout] | [INFO] [stdout] 281 | &self.result_text_value.push_str(result.as_str()); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 12 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 1m 25s [INFO] running `Command { std: "docker" "inspect" "b03ab968dd05f7c2adc5295aba0e1e94581fca1fb16e02a019ff0fa6acd58d4f", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "b03ab968dd05f7c2adc5295aba0e1e94581fca1fb16e02a019ff0fa6acd58d4f", kill_on_drop: false }` [INFO] [stdout] b03ab968dd05f7c2adc5295aba0e1e94581fca1fb16e02a019ff0fa6acd58d4f