[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] f0a2d5da35f0d5ff107e3ea114b230341b9d2cbc [INFO] checking skytomo221/wentiay-word-selecter against try#8de4b308b608cded0ebccf658a0fc719bce87d4e for pr-89056 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fskytomo221%2Fwentiay-word-selecter" "/workspace/builds/worker-89/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-89/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/skytomo221/wentiay-word-selecter on toolchain 8de4b308b608cded0ebccf658a0fc719bce87d4e [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+8de4b308b608cded0ebccf658a0fc719bce87d4e" "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-89/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" "+8de4b308b608cded0ebccf658a0fc719bce87d4e" "fetch" "--manifest-path" "Cargo.toml", 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] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-89/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-89/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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+8de4b308b608cded0ebccf658a0fc719bce87d4e" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] ccb02d83cdfb5d1b278b32895b1109b79c187f3bceab4b225e013f7d54e2c6df [INFO] running `Command { std: "docker" "start" "-a" "ccb02d83cdfb5d1b278b32895b1109b79c187f3bceab4b225e013f7d54e2c6df", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "ccb02d83cdfb5d1b278b32895b1109b79c187f3bceab4b225e013f7d54e2c6df", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "ccb02d83cdfb5d1b278b32895b1109b79c187f3bceab4b225e013f7d54e2c6df", kill_on_drop: false }` [INFO] [stdout] ccb02d83cdfb5d1b278b32895b1109b79c187f3bceab4b225e013f7d54e2c6df [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-89/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-89/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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+8de4b308b608cded0ebccf658a0fc719bce87d4e" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 30750d8a75c4f1da39076594afdcb430cfb80e2b2e63f3d11cf9cae476d73439 [INFO] running `Command { std: "docker" "start" "-a" "30750d8a75c4f1da39076594afdcb430cfb80e2b2e63f3d11cf9cae476d73439", kill_on_drop: false }` [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] [stderr] Compiling proc-macro2 v1.0.28 [INFO] [stderr] Compiling syn v1.0.74 [INFO] [stderr] Compiling serde_derive v1.0.127 [INFO] [stderr] Compiling serde v1.0.127 [INFO] [stderr] Compiling serde_json v1.0.66 [INFO] [stderr] Checking tinyvec_macros v0.1.0 [INFO] [stderr] Checking itoa v0.4.7 [INFO] [stderr] Checking tinyvec v1.3.1 [INFO] [stderr] Checking unicode-normalization v0.1.19 [INFO] [stderr] Compiling quote v1.0.9 [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 45.13s [INFO] running `Command { std: "docker" "inspect" "30750d8a75c4f1da39076594afdcb430cfb80e2b2e63f3d11cf9cae476d73439", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "30750d8a75c4f1da39076594afdcb430cfb80e2b2e63f3d11cf9cae476d73439", kill_on_drop: false }` [INFO] [stdout] 30750d8a75c4f1da39076594afdcb430cfb80e2b2e63f3d11cf9cae476d73439