[INFO] cloning repository https://github.com/AlexisFlo/CLI-exercise
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/AlexisFlo/CLI-exercise" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FAlexisFlo%2FCLI-exercise", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FAlexisFlo%2FCLI-exercise'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 0769bd6c3e2545b79669c45f5d40e737ba1aeb37
[INFO] checking AlexisFlo/CLI-exercise against try#5ef65a4ed75279dc1b7a26cedc27293a9f4ca8db for pr-143717
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FAlexisFlo%2FCLI-exercise" "/workspace/builds/worker-4-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/AlexisFlo/CLI-exercise
[INFO] finished tweaking git repo https://github.com/AlexisFlo/CLI-exercise
[INFO] tweaked toml for git repo https://github.com/AlexisFlo/CLI-exercise written to /workspace/builds/worker-4-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/AlexisFlo/CLI-exercise on toolchain 5ef65a4ed75279dc1b7a26cedc27293a9f4ca8db
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+5ef65a4ed75279dc1b7a26cedc27293a9f4ca8db" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/AlexisFlo/CLI-exercise 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" "+5ef65a4ed75279dc1b7a26cedc27293a9f4ca8db" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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" "+5ef65a4ed75279dc1b7a26cedc27293a9f4ca8db" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 15d263c0749de6ad9719894db584ff172aacea92122846e3a9bafbb79c47b5a2
[INFO] running `Command { std: "docker" "start" "-a" "15d263c0749de6ad9719894db584ff172aacea92122846e3a9bafbb79c47b5a2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "15d263c0749de6ad9719894db584ff172aacea92122846e3a9bafbb79c47b5a2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "15d263c0749de6ad9719894db584ff172aacea92122846e3a9bafbb79c47b5a2", kill_on_drop: false }`
[INFO] [stdout] 15d263c0749de6ad9719894db584ff172aacea92122846e3a9bafbb79c47b5a2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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" "+5ef65a4ed75279dc1b7a26cedc27293a9f4ca8db" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 7fd53aff34706bf79a07ee3571a2d5adfff28602a85e2573a82e1841fe20db26
[INFO] running `Command { std: "docker" "start" "-a" "7fd53aff34706bf79a07ee3571a2d5adfff28602a85e2573a82e1841fe20db26", kill_on_drop: false }`
[INFO] [stderr]     Checking aho-corasick v1.1.3
[INFO] [stderr]     Checking regex-syntax v0.8.5
[INFO] [stderr]    Compiling proc-macro2 v1.0.93
[INFO] [stderr]     Checking anstyle v1.0.10
[INFO] [stderr]    Compiling autocfg v1.4.0
[INFO] [stderr]    Compiling unicode-ident v1.0.17
[INFO] [stderr]    Compiling libc v0.2.171
[INFO] [stderr]     Checking utf8parse v0.2.2
[INFO] [stderr]     Checking anstyle-parse v0.2.6
[INFO] [stderr]     Checking colorchoice v1.0.3
[INFO] [stderr]     Checking anstyle-query v1.1.2
[INFO] [stderr]     Checking is_terminal_polyfill v1.70.1
[INFO] [stderr]     Checking crossbeam-epoch v0.9.18
[INFO] [stderr]     Checking bitflags v2.9.0
[INFO] [stderr]     Checking anstream v0.6.18
[INFO] [stderr]     Checking strsim v0.11.1
[INFO] [stderr]    Compiling anyhow v1.0.96
[INFO] [stderr]    Compiling rustix v1.0.2
[INFO] [stderr]    Compiling num-traits v0.2.19
[INFO] [stderr]    Compiling getrandom v0.3.1
[INFO] [stderr]     Checking clap_lex v0.7.4
[INFO] [stderr]    Compiling doc-comment v0.3.3
[INFO] [stderr]     Checking predicates-core v1.0.9
[INFO] [stderr]     Checking same-file v1.0.6
[INFO] [stderr]     Checking log v0.4.26
[INFO] [stderr]     Checking walkdir v2.5.0
[INFO] [stderr]    Compiling quote v1.0.38
[INFO] [stderr]     Checking clap_builder v4.5.31
[INFO] [stderr]     Checking crossbeam-deque v0.8.6
[INFO] [stderr]     Checking linux-raw-sys v0.9.3
[INFO] [stderr]     Checking float-cmp v0.10.0
[INFO] [stderr]    Compiling syn v2.0.98
[INFO] [stderr]     Checking difflib v0.4.0
[INFO] [stderr]     Checking termtree v0.5.1
[INFO] [stderr]     Checking normalize-line-endings v0.3.0
[INFO] [stderr]     Checking predicates-tree v1.0.12
[INFO] [stderr]     Checking fastrand v2.3.0
[INFO] [stderr]    Compiling assert_cmd v2.0.16
[INFO] [stderr]     Checking once_cell v1.20.3
[INFO] [stderr]     Checking wait-timeout v0.2.1
[INFO] [stderr]     Checking regex-automata v0.4.9
[INFO] [stderr]     Checking tempfile v3.19.0
[INFO] [stderr]     Checking bstr v1.11.3
[INFO] [stderr]     Checking regex v1.11.1
[INFO] [stderr]     Checking predicates v3.1.3
[INFO] [stderr]    Compiling clap_derive v4.5.28
[INFO] [stderr]     Checking globset v0.4.16
[INFO] [stderr]     Checking ignore v0.4.23
[INFO] [stderr]     Checking globwalk v0.9.1
[INFO] [stderr]     Checking assert_fs v1.1.2
[INFO] [stderr]     Checking clap v4.5.31
[INFO] [stderr]     Checking grrs v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]  --> src/lib.rs:4:13
[INFO] [stdout]   |
[INFO] [stdout] 4 |             writeln!(writer, "{}", line);
[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] 4 |             let _ = writeln!(writer, "{}", line);
[INFO] [stdout]   |             +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]  --> src/lib.rs:4:13
[INFO] [stdout]   |
[INFO] [stdout] 4 |             writeln!(writer, "{}", line);
[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] 4 |             let _ = writeln!(writer, "{}", line);
[INFO] [stdout]   |             +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 24.46s
[INFO] running `Command { std: "docker" "inspect" "7fd53aff34706bf79a07ee3571a2d5adfff28602a85e2573a82e1841fe20db26", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7fd53aff34706bf79a07ee3571a2d5adfff28602a85e2573a82e1841fe20db26", kill_on_drop: false }`
[INFO] [stdout] 7fd53aff34706bf79a07ee3571a2d5adfff28602a85e2573a82e1841fe20db26
