[INFO] cloning repository https://github.com/skytomo221/wentiay-word-selecter [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/skytomo221/wentiay-word-selecter" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fskytomo221%2Fwentiay-word-selecter", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fskytomo221%2Fwentiay-word-selecter'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] 8edd2fc4532b98d7ec89dbae09382650e6c763eb [INFO] checking skytomo221/wentiay-word-selecter against master#8007b506ac5da629f223b755f5a5391edd5f6d01 for pr-88041 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fskytomo221%2Fwentiay-word-selecter" "/workspace/builds/worker-12/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-12/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/skytomo221/wentiay-word-selecter on toolchain 8007b506ac5da629f223b755f5a5391edd5f6d01 [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+8007b506ac5da629f223b755f5a5391edd5f6d01" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking git repo https://github.com/skytomo221/wentiay-word-selecter [INFO] finished tweaking git repo https://github.com/skytomo221/wentiay-word-selecter [INFO] tweaked toml for git repo https://github.com/skytomo221/wentiay-word-selecter written to /workspace/builds/worker-12/source/Cargo.toml [INFO] crate git repo https://github.com/skytomo221/wentiay-word-selecter already has a lockfile, it will not be regenerated [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+8007b506ac5da629f223b755f5a5391edd5f6d01" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+8007b506ac5da629f223b755f5a5391edd5f6d01" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 2dd483331fcf01a02e3f935ac6efe71a408ffd0f35f491bfe1788c5a6806343c [INFO] running `Command { std: "docker" "start" "-a" "2dd483331fcf01a02e3f935ac6efe71a408ffd0f35f491bfe1788c5a6806343c", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "2dd483331fcf01a02e3f935ac6efe71a408ffd0f35f491bfe1788c5a6806343c", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "2dd483331fcf01a02e3f935ac6efe71a408ffd0f35f491bfe1788c5a6806343c", kill_on_drop: false }` [INFO] [stdout] 2dd483331fcf01a02e3f935ac6efe71a408ffd0f35f491bfe1788c5a6806343c [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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" "+8007b506ac5da629f223b755f5a5391edd5f6d01" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 1cf1762b12f76f29bd28b3f68f881fcbf31203415dc580b75052fcc444786360 [INFO] running `Command { std: "docker" "start" "-a" "1cf1762b12f76f29bd28b3f68f881fcbf31203415dc580b75052fcc444786360", kill_on_drop: false }` [INFO] [stderr] Compiling proc-macro2 v1.0.28 [INFO] [stderr] Compiling unicode-xid v0.2.2 [INFO] [stderr] Compiling syn v1.0.74 [INFO] [stderr] Compiling serde_derive v1.0.127 [INFO] [stderr] Compiling memchr v2.4.0 [INFO] [stderr] Compiling ryu v1.0.5 [INFO] [stderr] Compiling serde v1.0.127 [INFO] [stderr] Compiling serde_json v1.0.66 [INFO] [stderr] Checking regex-syntax v0.6.25 [INFO] [stderr] Checking tinyvec v1.3.1 [INFO] [stderr] Checking aho-corasick v0.7.18 [INFO] [stderr] Checking unicode-normalization v0.1.19 [INFO] [stderr] Compiling quote v1.0.9 [INFO] [stderr] Checking regex v1.5.4 [INFO] [stderr] Checking bacitit-word-generator v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: unused borrow that must be used [INFO] [stdout] --> src/main.rs:222:17 [INFO] [stdout] | [INFO] [stdout] 222 | / &loan[start..end] [INFO] [stdout] 223 | | .chars() [INFO] [stdout] 224 | | .filter(|c| { [INFO] [stdout] 225 | | if n % 2 == 0 { [INFO] [stdout] ... | [INFO] [stdout] 232 | | set.insert(c); [INFO] [stdout] 233 | | }); [INFO] [stdout] | |______________________^ the borrow produces a value [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_must_use)]` on by default [INFO] [stdout] help: use `let _ = ...` to ignore the resulting value [INFO] [stdout] | [INFO] [stdout] 222 | let _ = &loan[start..end] [INFO] [stdout] | +++++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused borrow that must be used [INFO] [stdout] --> src/main.rs:237:17 [INFO] [stdout] | [INFO] [stdout] 237 | / &loan[start..end] [INFO] [stdout] 238 | | .chars() [INFO] [stdout] 239 | | .filter(|c| { [INFO] [stdout] 240 | | if n % 2 == 0 { [INFO] [stdout] ... | [INFO] [stdout] 247 | | set.insert(c); [INFO] [stdout] 248 | | }); [INFO] [stdout] | |______________________^ the borrow produces a value [INFO] [stdout] | [INFO] [stdout] help: use `let _ = ...` to ignore the resulting value [INFO] [stdout] | [INFO] [stdout] 237 | let _ = &loan[start..end] [INFO] [stdout] | +++++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused `Result` that must be used [INFO] [stdout] --> src/main.rs:443:13 [INFO] [stdout] | [INFO] [stdout] 443 | serde_json::to_writer_pretty(&File::create("./data/result.json").unwrap(), &recipe); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 3 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused borrow that must be used [INFO] [stdout] --> src/main.rs:222:17 [INFO] [stdout] | [INFO] [stdout] 222 | / &loan[start..end] [INFO] [stdout] 223 | | .chars() [INFO] [stdout] 224 | | .filter(|c| { [INFO] [stdout] 225 | | if n % 2 == 0 { [INFO] [stdout] ... | [INFO] [stdout] 232 | | set.insert(c); [INFO] [stdout] 233 | | }); [INFO] [stdout] | |______________________^ the borrow produces a value [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_must_use)]` on by default [INFO] [stdout] help: use `let _ = ...` to ignore the resulting value [INFO] [stdout] | [INFO] [stdout] 222 | let _ = &loan[start..end] [INFO] [stdout] | +++++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused borrow that must be used [INFO] [stdout] --> src/main.rs:237:17 [INFO] [stdout] | [INFO] [stdout] 237 | / &loan[start..end] [INFO] [stdout] 238 | | .chars() [INFO] [stdout] 239 | | .filter(|c| { [INFO] [stdout] 240 | | if n % 2 == 0 { [INFO] [stdout] ... | [INFO] [stdout] 247 | | set.insert(c); [INFO] [stdout] 248 | | }); [INFO] [stdout] | |______________________^ the borrow produces a value [INFO] [stdout] | [INFO] [stdout] help: use `let _ = ...` to ignore the resulting value [INFO] [stdout] | [INFO] [stdout] 237 | let _ = &loan[start..end] [INFO] [stdout] | +++++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused `Result` that must be used [INFO] [stdout] --> src/main.rs:443:13 [INFO] [stdout] | [INFO] [stdout] 443 | serde_json::to_writer_pretty(&File::create("./data/result.json").unwrap(), &recipe); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 3 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 25.86s [INFO] running `Command { std: "docker" "inspect" "1cf1762b12f76f29bd28b3f68f881fcbf31203415dc580b75052fcc444786360", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "1cf1762b12f76f29bd28b3f68f881fcbf31203415dc580b75052fcc444786360", kill_on_drop: false }` [INFO] [stdout] 1cf1762b12f76f29bd28b3f68f881fcbf31203415dc580b75052fcc444786360