[INFO] fetching crate cli-clap-example 0.1.0...
[INFO] checking cli-clap-example-0.1.0 against try#998b6603a58e47f42ccce7a67943234e96b6839e for pr-143170
[INFO] extracting crate cli-clap-example 0.1.0 into /workspace/builds/worker-6-tc2/source
[INFO] removed /workspace/builds/worker-6-tc2/source/rust-toolchain.toml
[INFO] started tweaking crates.io crate cli-clap-example 0.1.0
[INFO] finished tweaking crates.io crate cli-clap-example 0.1.0
[INFO] tweaked toml for crates.io crate cli-clap-example 0.1.0 written to /workspace/builds/worker-6-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate cli-clap-example 0.1.0 on toolchain 998b6603a58e47f42ccce7a67943234e96b6839e
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+998b6603a58e47f42ccce7a67943234e96b6839e" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate cli-clap-example 0.1.0 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" "+998b6603a58e47f42ccce7a67943234e96b6839e" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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@sha256:90999bfc7ae267e83380e433d8e61a7c072ca6729e92edbae886d3423b3a6f4c" "/opt/rustwide/cargo-home/bin/cargo" "+998b6603a58e47f42ccce7a67943234e96b6839e" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 98dfc1b44a1c6a317b8485a3f4100cdc5b535a4a29e69ee5dd4b57a9812a4e2e
[INFO] running `Command { std: "docker" "start" "-a" "98dfc1b44a1c6a317b8485a3f4100cdc5b535a4a29e69ee5dd4b57a9812a4e2e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "98dfc1b44a1c6a317b8485a3f4100cdc5b535a4a29e69ee5dd4b57a9812a4e2e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "98dfc1b44a1c6a317b8485a3f4100cdc5b535a4a29e69ee5dd4b57a9812a4e2e", kill_on_drop: false }`
[INFO] [stdout] 98dfc1b44a1c6a317b8485a3f4100cdc5b535a4a29e69ee5dd4b57a9812a4e2e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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" "-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@sha256:90999bfc7ae267e83380e433d8e61a7c072ca6729e92edbae886d3423b3a6f4c" "/opt/rustwide/cargo-home/bin/cargo" "+998b6603a58e47f42ccce7a67943234e96b6839e" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 9191b2b0526a957e7300bcdc0dc138209bb7086ff6efaf0ad63d622900ad5eee
[INFO] running `Command { std: "docker" "start" "-a" "9191b2b0526a957e7300bcdc0dc138209bb7086ff6efaf0ad63d622900ad5eee", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.70
[INFO] [stderr]     Checking anstyle v1.0.4
[INFO] [stderr]     Checking utf8parse v0.2.1
[INFO] [stderr]    Compiling libc v0.2.151
[INFO] [stderr]     Checking either v1.9.0
[INFO] [stderr]     Checking anstyle-query v1.0.2
[INFO] [stderr]     Checking predicates-core v1.0.6
[INFO] [stderr]     Checking colorchoice v1.0.0
[INFO] [stderr]    Compiling doc-comment v0.3.3
[INFO] [stderr]     Checking regex-automata v0.4.3
[INFO] [stderr]     Checking clap_lex v0.6.0
[INFO] [stderr]     Checking memchr v2.6.4
[INFO] [stderr]     Checking termtree v0.4.1
[INFO] [stderr]     Checking difflib v0.4.0
[INFO] [stderr]     Checking uj_tcs_rust_23_18 v0.1.0
[INFO] [stderr]     Checking anstyle-parse v0.2.3
[INFO] [stderr]     Checking itertools v0.11.0
[INFO] [stderr]     Checking predicates-tree v1.0.9
[INFO] [stderr]     Checking anstream v0.6.5
[INFO] [stderr]     Checking clap_builder v4.4.11
[INFO] [stderr]    Compiling quote v1.0.33
[INFO] [stderr]     Checking bstr v1.8.0
[INFO] [stderr]    Compiling syn v2.0.40
[INFO] [stderr]     Checking wait-timeout v0.2.0
[INFO] [stderr]     Checking predicates v3.0.4
[INFO] [stderr]     Checking assert_cmd v2.0.12
[INFO] [stderr]    Compiling clap_derive v4.4.7
[INFO] [stderr]     Checking clap v4.4.11
[INFO] [stderr]     Checking cli-clap-example v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> src/main.rs:15:9
[INFO] [stdout]    |
[INFO] [stdout] 15 |         head(&PathBuf::from(args.file), args.lines);
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]    |
[INFO] [stdout] 15 |         let _ = head(&PathBuf::from(args.file), args.lines);
[INFO] [stdout]    |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> src/main.rs:17:9
[INFO] [stdout]    |
[INFO] [stdout] 17 |         tail(&PathBuf::from(args.file), args.lines);
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]    |
[INFO] [stdout] 17 |         let _ = tail(&PathBuf::from(args.file), args.lines);
[INFO] [stdout]    |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> src/main.rs:15:9
[INFO] [stdout]    |
[INFO] [stdout] 15 |         head(&PathBuf::from(args.file), args.lines);
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]    |
[INFO] [stdout] 15 |         let _ = head(&PathBuf::from(args.file), args.lines);
[INFO] [stdout]    |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> src/main.rs:17:9
[INFO] [stdout]    |
[INFO] [stdout] 17 |         tail(&PathBuf::from(args.file), args.lines);
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]    |
[INFO] [stdout] 17 |         let _ = tail(&PathBuf::from(args.file), args.lines);
[INFO] [stdout]    |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 9.53s
[INFO] running `Command { std: "docker" "inspect" "9191b2b0526a957e7300bcdc0dc138209bb7086ff6efaf0ad63d622900ad5eee", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9191b2b0526a957e7300bcdc0dc138209bb7086ff6efaf0ad63d622900ad5eee", kill_on_drop: false }`
[INFO] [stdout] 9191b2b0526a957e7300bcdc0dc138209bb7086ff6efaf0ad63d622900ad5eee