[INFO] cloning repository https://github.com/raimon49/rust-string-and-text-study
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/raimon49/rust-string-and-text-study" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fraimon49%2Frust-string-and-text-study", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fraimon49%2Frust-string-and-text-study'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] f8647433e402600ea273fb7920022dff39c3beb9
[INFO] testing raimon49/rust-string-and-text-study against master#1f7f8ea0721a3b1eb73e6c6d25cccb371434b320 for pr-154065-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fraimon49%2Frust-string-and-text-study" "/workspace/builds/worker-2-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2-tc1/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/raimon49/rust-string-and-text-study
[INFO] finished tweaking git repo https://github.com/raimon49/rust-string-and-text-study
[INFO] tweaked toml for git repo https://github.com/raimon49/rust-string-and-text-study written to /workspace/builds/worker-2-tc1/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/raimon49/rust-string-and-text-study on toolchain 1f7f8ea0721a3b1eb73e6c6d25cccb371434b320
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1f7f8ea0721a3b1eb73e6c6d25cccb371434b320" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/raimon49/rust-string-and-text-study 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" "+1f7f8ea0721a3b1eb73e6c6d25cccb371434b320" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded aho-corasick v0.6.10
[INFO] [stderr]   Downloaded ucd-util v0.1.8
[INFO] [stderr]   Downloaded regex-syntax v0.5.6
[INFO] [stderr]   Downloaded regex v0.2.11
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+1f7f8ea0721a3b1eb73e6c6d25cccb371434b320" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 66fd6ba2b0f551a6d13750d0fee863713ebf73c73f231b71c2589d39d9f7e821
[INFO] running `Command { std: "docker" "start" "-a" "66fd6ba2b0f551a6d13750d0fee863713ebf73c73f231b71c2589d39d9f7e821", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "66fd6ba2b0f551a6d13750d0fee863713ebf73c73f231b71c2589d39d9f7e821", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "66fd6ba2b0f551a6d13750d0fee863713ebf73c73f231b71c2589d39d9f7e821", kill_on_drop: false }`
[INFO] [stdout] 66fd6ba2b0f551a6d13750d0fee863713ebf73c73f231b71c2589d39d9f7e821
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+1f7f8ea0721a3b1eb73e6c6d25cccb371434b320" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] de65fd6786d4c67ca6b965341b5a2136ca806c936bf8e206d18c0bf2acac16fc
[INFO] running `Command { std: "docker" "start" "-a" "de65fd6786d4c67ca6b965341b5a2136ca806c936bf8e206d18c0bf2acac16fc", kill_on_drop: false }`
[INFO] [stderr]    Compiling memchr v2.4.1
[INFO] [stderr]    Compiling regex v0.2.11
[INFO] [stderr]    Compiling ucd-util v0.1.8
[INFO] [stderr]    Compiling tinyvec_macros v0.1.0
[INFO] [stderr]    Compiling utf8-ranges v1.0.4
[INFO] [stderr]    Compiling thread_local v0.3.6
[INFO] [stderr]    Compiling regex-syntax v0.5.6
[INFO] [stderr]    Compiling tinyvec v1.5.1
[INFO] [stderr]    Compiling aho-corasick v0.6.10
[INFO] [stderr]    Compiling unicode-normalization v0.1.19
[INFO] [stderr]    Compiling rust-string-and-text-study v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unnecessary trailing semicolon
[INFO] [stdout]    --> src/main.rs:515:42
[INFO] [stdout]     |
[INFO] [stdout] 515 |         struct Complex { r: f64, i: f64 };
[INFO] [stdout]     |                                          ^ help: remove this semicolon
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(redundant_semicolons)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary trailing semicolon
[INFO] [stdout]    --> src/main.rs:565:42
[INFO] [stdout]     |
[INFO] [stdout] 565 |         struct Complex { r: f64, i: f64 };
[INFO] [stdout]     |                                          ^ help: remove this semicolon
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused macro definition: `log`
[INFO] [stdout]    --> src/main.rs:618:22
[INFO] [stdout]     |
[INFO] [stdout] 618 |         macro_rules! log {
[INFO] [stdout]     |                      ^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_macros)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::io::BufRead`
[INFO] [stdout]    --> src/main.rs:668:13
[INFO] [stdout]     |
[INFO] [stdout] 668 |         use std::io::BufRead;
[INFO] [stdout]     |             ^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated constant `std::sync::ONCE_INIT`: the `Once::new()` function is now preferred
[INFO] [stdout]    --> src/main.rs:662:9
[INFO] [stdout]     |
[INFO] [stdout] 662 | /         lazy_static! {
[INFO] [stdout] 663 | |             // 3rd parthのlazy_staticクレートで提供されるマクロで宣言したSEMVERは
[INFO] [stdout] 664 | |             // 最初に参照解決されたタイミングまで初期化が遅延されるためRegex::new()のコストを1回きりに最小化できる
[INFO] [stdout] 665 | |             static ref SEMVER: Regex = Regex::new(r"(\d+)\.(\d+)\.(\d+)(-[-.[:alnum:]]*)?").expect("error parsing regex");
[INFO] [stdout] 666 | |         }
[INFO] [stdout]     | |_________^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(deprecated)]` on by default
[INFO] [stdout]     = note: this warning originates in the macro `__lazy_static_create` which comes from the expansion of the macro `lazy_static` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `stdin`
[INFO] [stdout]    --> src/main.rs:670:13
[INFO] [stdout]     |
[INFO] [stdout] 670 |         let stdin = std::io::stdin();
[INFO] [stdout]     |             ^^^^^ help: if this is intentional, prefix it with an underscore: `_stdin`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `r` and `i` are never read
[INFO] [stdout]    --> src/main.rs:515:26
[INFO] [stdout]     |
[INFO] [stdout] 515 |         struct Complex { r: f64, i: f64 };
[INFO] [stdout]     |                -------   ^       ^
[INFO] [stdout]     |                |
[INFO] [stdout]     |                fields in this struct
[INFO] [stdout]     |
[INFO] [stdout]     = note: `Complex` has derived impls for the traits `Debug` and `Clone`, but these are intentionally ignored during dead code analysis
[INFO] [stdout]     = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `logging_enabled` is never used
[INFO] [stdout]    --> src/main.rs:595:12
[INFO] [stdout]     |
[INFO] [stdout] 595 |         fn logging_enabled() -> bool {
[INFO] [stdout]     |            ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `write_log_entry` is never used
[INFO] [stdout]    --> src/main.rs:602:12
[INFO] [stdout]     |
[INFO] [stdout] 602 |         fn write_log_entry(entry: std::fmt::Arguments) {
[INFO] [stdout]     |            ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 6.52s
[INFO] running `Command { std: "docker" "inspect" "de65fd6786d4c67ca6b965341b5a2136ca806c936bf8e206d18c0bf2acac16fc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "de65fd6786d4c67ca6b965341b5a2136ca806c936bf8e206d18c0bf2acac16fc", kill_on_drop: false }`
[INFO] [stdout] de65fd6786d4c67ca6b965341b5a2136ca806c936bf8e206d18c0bf2acac16fc
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+1f7f8ea0721a3b1eb73e6c6d25cccb371434b320" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 973358fa1057f41574fdd8cb21b7fbcea2b20459db842f97aee47743cb32ea24
[INFO] running `Command { std: "docker" "start" "-a" "973358fa1057f41574fdd8cb21b7fbcea2b20459db842f97aee47743cb32ea24", kill_on_drop: false }`
[INFO] [stderr]    Compiling rust-string-and-text-study v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unnecessary trailing semicolon
[INFO] [stdout]    --> src/main.rs:515:42
[INFO] [stdout]     |
[INFO] [stdout] 515 |         struct Complex { r: f64, i: f64 };
[INFO] [stdout]     |                                          ^ help: remove this semicolon
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(redundant_semicolons)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary trailing semicolon
[INFO] [stdout]    --> src/main.rs:565:42
[INFO] [stdout]     |
[INFO] [stdout] 565 |         struct Complex { r: f64, i: f64 };
[INFO] [stdout]     |                                          ^ help: remove this semicolon
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused macro definition: `log`
[INFO] [stdout]    --> src/main.rs:618:22
[INFO] [stdout]     |
[INFO] [stdout] 618 |         macro_rules! log {
[INFO] [stdout]     |                      ^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_macros)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::io::BufRead`
[INFO] [stdout]    --> src/main.rs:668:13
[INFO] [stdout]     |
[INFO] [stdout] 668 |         use std::io::BufRead;
[INFO] [stdout]     |             ^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated constant `std::sync::ONCE_INIT`: the `Once::new()` function is now preferred
[INFO] [stdout]    --> src/main.rs:662:9
[INFO] [stdout]     |
[INFO] [stdout] 662 | /         lazy_static! {
[INFO] [stdout] 663 | |             // 3rd parthのlazy_staticクレートで提供されるマクロで宣言したSEMVERは
[INFO] [stdout] 664 | |             // 最初に参照解決されたタイミングまで初期化が遅延されるためRegex::new()のコストを1回きりに最小化できる
[INFO] [stdout] 665 | |             static ref SEMVER: Regex = Regex::new(r"(\d+)\.(\d+)\.(\d+)(-[-.[:alnum:]]*)?").expect("error parsing regex");
[INFO] [stdout] 666 | |         }
[INFO] [stdout]     | |_________^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(deprecated)]` on by default
[INFO] [stdout]     = note: this warning originates in the macro `__lazy_static_create` which comes from the expansion of the macro `lazy_static` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `stdin`
[INFO] [stdout]    --> src/main.rs:670:13
[INFO] [stdout]     |
[INFO] [stdout] 670 |         let stdin = std::io::stdin();
[INFO] [stdout]     |             ^^^^^ help: if this is intentional, prefix it with an underscore: `_stdin`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.44s
[INFO] running `Command { std: "docker" "inspect" "973358fa1057f41574fdd8cb21b7fbcea2b20459db842f97aee47743cb32ea24", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "973358fa1057f41574fdd8cb21b7fbcea2b20459db842f97aee47743cb32ea24", kill_on_drop: false }`
[INFO] [stdout] 973358fa1057f41574fdd8cb21b7fbcea2b20459db842f97aee47743cb32ea24
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+1f7f8ea0721a3b1eb73e6c6d25cccb371434b320" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] af52c4b5ebe54d00f4523b70e6be9b8656a1295dfa619dc1633bf5a9cd0f28c5
[INFO] running `Command { std: "docker" "start" "-a" "af52c4b5ebe54d00f4523b70e6be9b8656a1295dfa619dc1633bf5a9cd0f28c5", kill_on_drop: false }`
[INFO] [stderr] warning: unnecessary trailing semicolon
[INFO] [stderr]    --> src/main.rs:515:42
[INFO] [stderr]     |
[INFO] [stderr] 515 |         struct Complex { r: f64, i: f64 };
[INFO] [stderr]     |                                          ^ help: remove this semicolon
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(redundant_semicolons)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary trailing semicolon
[INFO] [stderr]    --> src/main.rs:565:42
[INFO] [stderr]     |
[INFO] [stderr] 565 |         struct Complex { r: f64, i: f64 };
[INFO] [stderr]     |                                          ^ help: remove this semicolon
[INFO] [stderr] 
[INFO] [stderr] warning: unused macro definition: `log`
[INFO] [stderr]    --> src/main.rs:618:22
[INFO] [stderr]     |
[INFO] [stderr] 618 |         macro_rules! log {
[INFO] [stderr]     |                      ^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_macros)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::io::BufRead`
[INFO] [stderr]    --> src/main.rs:668:13
[INFO] [stderr]     |
[INFO] [stderr] 668 |         use std::io::BufRead;
[INFO] [stderr]     |             ^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated constant `std::sync::ONCE_INIT`: the `Once::new()` function is now preferred
[INFO] [stderr]    --> src/main.rs:662:9
[INFO] [stderr]     |
[INFO] [stderr] 662 | /         lazy_static! {
[INFO] [stderr] 663 | |             // 3rd parthのlazy_staticクレートで提供されるマクロで宣言したSEMVERは
[INFO] [stderr] 664 | |             // 最初に参照解決されたタイミングまで初期化が遅延されるためRegex::new()のコストを1回きりに最小化できる
[INFO] [stderr] 665 | |             static ref SEMVER: Regex = Regex::new(r"(\d+)\.(\d+)\.(\d+)(-[-.[:alnum:]]*)?").expect("error parsing regex");
[INFO] [stderr] 666 | |         }
[INFO] [stderr]     | |_________^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(deprecated)]` on by default
[INFO] [stderr]     = note: this warning originates in the macro `__lazy_static_create` which comes from the expansion of the macro `lazy_static` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `stdin`
[INFO] [stderr]    --> src/main.rs:670:13
[INFO] [stderr]     |
[INFO] [stderr] 670 |         let stdin = std::io::stdin();
[INFO] [stderr]     |             ^^^^^ help: if this is intentional, prefix it with an underscore: `_stdin`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: `rust-string-and-text-study` (bin "rust-string-and-text-study" test) generated 6 warnings (run `cargo fix --bin "rust-string-and-text-study" -p rust-string-and-text-study --tests` to apply 2 suggestions)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.04s
[INFO] [stderr]      Running unittests src/main.rs (/opt/rustwide/target/debug/deps/rust_string_and_text_study-f861e13e6d80ab81)
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "af52c4b5ebe54d00f4523b70e6be9b8656a1295dfa619dc1633bf5a9cd0f28c5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "af52c4b5ebe54d00f4523b70e6be9b8656a1295dfa619dc1633bf5a9cd0f28c5", kill_on_drop: false }`
[INFO] [stdout] af52c4b5ebe54d00f4523b70e6be9b8656a1295dfa619dc1633bf5a9cd0f28c5
