[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 try#bf5ff6675cf10ce009ac02007b064a7cfc4509ac for pr-140558 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdiksipav%2Fsimple-rust-grep-tool" "/workspace/builds/worker-3-tc2/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-3-tc2/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/diksipav/simple-rust-grep-tool on toolchain bf5ff6675cf10ce009ac02007b064a7cfc4509ac [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+bf5ff6675cf10ce009ac02007b064a7cfc4509ac" "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-3-tc2/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" "+bf5ff6675cf10ce009ac02007b064a7cfc4509ac" "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-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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:b0b074c097205a61b89e8ad263052f976b2b332c4dc5f02aef1fe52501660d6e" "/opt/rustwide/cargo-home/bin/cargo" "+bf5ff6675cf10ce009ac02007b064a7cfc4509ac" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 7d156cef124865b33809982279fb5f9f3055780fbaedb71f8d617972b0a88b3e [INFO] running `Command { std: "docker" "start" "-a" "7d156cef124865b33809982279fb5f9f3055780fbaedb71f8d617972b0a88b3e", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "7d156cef124865b33809982279fb5f9f3055780fbaedb71f8d617972b0a88b3e", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "7d156cef124865b33809982279fb5f9f3055780fbaedb71f8d617972b0a88b3e", kill_on_drop: false }` [INFO] [stdout] 7d156cef124865b33809982279fb5f9f3055780fbaedb71f8d617972b0a88b3e [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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:b0b074c097205a61b89e8ad263052f976b2b332c4dc5f02aef1fe52501660d6e" "/opt/rustwide/cargo-home/bin/cargo" "+bf5ff6675cf10ce009ac02007b064a7cfc4509ac" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 52395219ecb9470545699ef1043abd99751b0f9fc0664fb49c341989ee16f94f [INFO] running `Command { std: "docker" "start" "-a" "52395219ecb9470545699ef1043abd99751b0f9fc0664fb49c341989ee16f94f", kill_on_drop: false }` [INFO] [stderr] Compiling proc-macro2 v1.0.78 [INFO] [stderr] Compiling libc v0.2.153 [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] Checking strsim v0.11.0 [INFO] [stderr] Compiling heck v0.4.1 [INFO] [stderr] Checking ppv-lite86 v0.2.17 [INFO] [stderr] Checking clap_lex v0.7.0 [INFO] [stderr] Compiling anyhow v1.0.80 [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: 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: 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] [stderr] Finished `dev` profile [unoptimized + debuginfo] target(s) in 7.37s [INFO] running `Command { std: "docker" "inspect" "52395219ecb9470545699ef1043abd99751b0f9fc0664fb49c341989ee16f94f", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "52395219ecb9470545699ef1043abd99751b0f9fc0664fb49c341989ee16f94f", kill_on_drop: false }` [INFO] [stdout] 52395219ecb9470545699ef1043abd99751b0f9fc0664fb49c341989ee16f94f