[INFO] cloning repository https://github.com/diksipav/simple-rust-grep-tool
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/diksipav/simple-rust-grep-tool" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdiksipav%2Fsimple-rust-grep-tool", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdiksipav%2Fsimple-rust-grep-tool'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 934941022cce534c154257ef07efb5d1e9030b38
[INFO] checking diksipav/simple-rust-grep-tool against master#092a284ba0421695f2032c947765429fd7095796 for pr-139763
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdiksipav%2Fsimple-rust-grep-tool" "/workspace/builds/worker-6-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-6-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/diksipav/simple-rust-grep-tool on toolchain 092a284ba0421695f2032c947765429fd7095796
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+092a284ba0421695f2032c947765429fd7095796" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/diksipav/simple-rust-grep-tool
[INFO] finished tweaking git repo https://github.com/diksipav/simple-rust-grep-tool
[INFO] tweaked toml for git repo https://github.com/diksipav/simple-rust-grep-tool written to /workspace/builds/worker-6-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/diksipav/simple-rust-grep-tool 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" "+092a284ba0421695f2032c947765429fd7095796" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/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:b0b074c097205a61b89e8ad263052f976b2b332c4dc5f02aef1fe52501660d6e" "/opt/rustwide/cargo-home/bin/cargo" "+092a284ba0421695f2032c947765429fd7095796" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 258f5a8257d6ed39b65e0c5e35c2ce77daa2530520a1c97b41529504b87170a3
[INFO] running `Command { std: "docker" "start" "-a" "258f5a8257d6ed39b65e0c5e35c2ce77daa2530520a1c97b41529504b87170a3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "258f5a8257d6ed39b65e0c5e35c2ce77daa2530520a1c97b41529504b87170a3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "258f5a8257d6ed39b65e0c5e35c2ce77daa2530520a1c97b41529504b87170a3", kill_on_drop: false }`
[INFO] [stdout] 258f5a8257d6ed39b65e0c5e35c2ce77daa2530520a1c97b41529504b87170a3
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/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:b0b074c097205a61b89e8ad263052f976b2b332c4dc5f02aef1fe52501660d6e" "/opt/rustwide/cargo-home/bin/cargo" "+092a284ba0421695f2032c947765429fd7095796" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] a13e51bd0da2beb736bc92f055ce35d18cf5c1113a1ec33580a54797fd8f2b5b
[INFO] running `Command { std: "docker" "start" "-a" "a13e51bd0da2beb736bc92f055ce35d18cf5c1113a1ec33580a54797fd8f2b5b", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.153
[INFO] [stderr]    Compiling proc-macro2 v1.0.78
[INFO] [stderr]    Compiling unicode-ident v1.0.12
[INFO] [stderr]    Compiling zerocopy v0.8.0-alpha.6
[INFO] [stderr]     Checking utf8parse v0.2.1
[INFO] [stderr]     Checking cfg-if v1.0.0
[INFO] [stderr]     Checking colorchoice v1.0.0
[INFO] [stderr]     Checking anstyle-query v1.0.2
[INFO] [stderr]     Checking anstyle v1.0.6
[INFO] [stderr]    Compiling heck v0.4.1
[INFO] [stderr]     Checking clap_lex v0.7.0
[INFO] [stderr]     Checking strsim v0.11.0
[INFO] [stderr]    Compiling anyhow v1.0.80
[INFO] [stderr]     Checking ppv-lite86 v0.2.17
[INFO] [stderr]     Checking anstyle-parse v0.2.3
[INFO] [stderr]     Checking anstream v0.6.13
[INFO] [stderr]     Checking clap_builder v4.5.1
[INFO] [stderr]    Compiling quote v1.0.35
[INFO] [stderr]    Compiling syn v2.0.52
[INFO] [stderr]     Checking getrandom v0.2.12
[INFO] [stderr]     Checking rand_core v0.9.0-alpha.1
[INFO] [stderr]     Checking rand_chacha v0.9.0-alpha.1
[INFO] [stderr]     Checking rand v0.9.0-alpha.1
[INFO] [stderr]    Compiling clap_derive v4.5.0
[INFO] [stderr]     Checking clap v4.5.1
[INFO] [stderr]     Checking simple-rust-grep-tool v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: function `read_file_as_string` is never used
[INFO] [stdout]  --> src/util.rs:8:8
[INFO] [stdout]   |
[INFO] [stdout] 8 | pub fn read_file_as_string(args: &Cli) -> Result<()> {
[INFO] [stdout]   |        ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `read_file_line_by_line` is never used
[INFO] [stdout]   --> src/util.rs:21:8
[INFO] [stdout]    |
[INFO] [stdout] 21 | pub fn read_file_line_by_line(args: &Cli) -> Result<()> {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `read_file_as_string` is never used
[INFO] [stdout]  --> src/util.rs:8:8
[INFO] [stdout]   |
[INFO] [stdout] 8 | pub fn read_file_as_string(args: &Cli) -> Result<()> {
[INFO] [stdout]   |        ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `read_file_line_by_line` is never used
[INFO] [stdout]   --> src/util.rs:21:8
[INFO] [stdout]    |
[INFO] [stdout] 21 | pub fn read_file_line_by_line(args: &Cli) -> Result<()> {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> src/main.rs:23:5
[INFO] [stdout]    |
[INFO] [stdout] 23 |     read_file_line_by_line_better(&args);
[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] 23 |     let _ = read_file_line_by_line_better(&args);
[INFO] [stdout]    |     +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> src/main.rs:23:5
[INFO] [stdout]    |
[INFO] [stdout] 23 |     read_file_line_by_line_better(&args);
[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] 23 |     let _ = read_file_line_by_line_better(&args);
[INFO] [stdout]    |     +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 5.07s
[INFO] running `Command { std: "docker" "inspect" "a13e51bd0da2beb736bc92f055ce35d18cf5c1113a1ec33580a54797fd8f2b5b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a13e51bd0da2beb736bc92f055ce35d18cf5c1113a1ec33580a54797fd8f2b5b", kill_on_drop: false }`
[INFO] [stdout] a13e51bd0da2beb736bc92f055ce35d18cf5c1113a1ec33580a54797fd8f2b5b