[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 master#90442458ac46b1d5eed752c316da25450f67285b for pr-81477 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fpi-181%2Fnum-methods-lab4-rs" "/workspace/builds/worker-4/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-4/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/pi-181/num-methods-lab4-rs on toolchain 90442458ac46b1d5eed752c316da25450f67285b [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+90442458ac46b1d5eed752c316da25450f67285b" "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-4/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" "+90442458ac46b1d5eed752c316da25450f67285b" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] running `Command { 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"start" "-a" "1ae1af2a91e371f9007f347cde5fd932c9f3b1ab3e5982c3af86735beb1a427d", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "1ae1af2a91e371f9007f347cde5fd932c9f3b1ab3e5982c3af86735beb1a427d", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "1ae1af2a91e371f9007f347cde5fd932c9f3b1ab3e5982c3af86735beb1a427d", kill_on_drop: false }` [INFO] [stdout] 1ae1af2a91e371f9007f347cde5fd932c9f3b1ab3e5982c3af86735beb1a427d [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "+90442458ac46b1d5eed752c316da25450f67285b" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 75d4dc46a67bc357eae55e789e6cec8486360f126097c8a7716daccff6585026 [INFO] running `Command { std: "docker" "start" "-a" "75d4dc46a67bc357eae55e789e6cec8486360f126097c8a7716daccff6585026", 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] Blocking waiting for file lock on package cache [INFO] [stderr] Compiling cc v1.0.50 [INFO] [stderr] Compiling log v0.4.8 [INFO] [stderr] 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[INFO] [stderr] Checking euclid v0.19.9 [INFO] [stderr] Checking zerocopy v0.2.8 [INFO] [stderr] Checking wgpu-native v0.4.3 [INFO] [stderr] Checking guillotiere v0.4.4 [INFO] [stderr] Checking futures-util v0.3.4 [INFO] [stderr] Checking clipboard_x11 v0.1.0 [INFO] [stderr] Checking futures-executor v0.3.4 [INFO] [stderr] Checking futures v0.3.4 [INFO] [stderr] Checking iced_futures v0.1.0 [INFO] [stderr] Checking iced_native v0.2.0 [INFO] [stderr] Checking smithay-client-toolkit v0.6.6 [INFO] [stderr] Checking smithay-clipboard v0.3.7 [INFO] [stderr] Checking winit v0.22.0 [INFO] [stderr] Checking clipboard_wayland v0.1.0 [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 46.86s [INFO] running `Command { std: "docker" 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