[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] checking raimon49/rust-string-and-text-study against try#b1f2594eac607c1f051534800237eeedb5590a49 for pr-139493-3
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fraimon49%2Frust-string-and-text-study" "/workspace/builds/worker-6-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-6-tc2/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-6-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/raimon49/rust-string-and-text-study on toolchain b1f2594eac607c1f051534800237eeedb5590a49
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+b1f2594eac607c1f051534800237eeedb5590a49" "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" "+b1f2594eac607c1f051534800237eeedb5590a49" "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:aa71247004a7fa38d13ec170f48f06cdedf5bc50b2a8645e56ed7e992e6fa513" "/opt/rustwide/cargo-home/bin/cargo" "+b1f2594eac607c1f051534800237eeedb5590a49" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 86e497c40da272898a82dce1ed8629656589e48defbed57429ef0deb805c3d24
[INFO] running `Command { std: "docker" "start" "-a" "86e497c40da272898a82dce1ed8629656589e48defbed57429ef0deb805c3d24", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "86e497c40da272898a82dce1ed8629656589e48defbed57429ef0deb805c3d24", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "86e497c40da272898a82dce1ed8629656589e48defbed57429ef0deb805c3d24", kill_on_drop: false }`
[INFO] [stdout] 86e497c40da272898a82dce1ed8629656589e48defbed57429ef0deb805c3d24
[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:aa71247004a7fa38d13ec170f48f06cdedf5bc50b2a8645e56ed7e992e6fa513" "/opt/rustwide/cargo-home/bin/cargo" "+b1f2594eac607c1f051534800237eeedb5590a49" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] f05c204ed25ed99ce3d21dea315e809902a97fa722dfaf31df450096c3a85ab7
[INFO] running `Command { std: "docker" "start" "-a" "f05c204ed25ed99ce3d21dea315e809902a97fa722dfaf31df450096c3a85ab7", kill_on_drop: false }`
[INFO] [stderr]     Checking ucd-util v0.1.8
[INFO] [stderr]    Compiling regex v0.2.11
[INFO] [stderr]     Checking utf8-ranges v1.0.4
[INFO] [stderr]     Checking lazy_static v0.2.11
[INFO] [stderr]     Checking thread_local v0.3.6
[INFO] [stderr]     Checking aho-corasick v0.6.10
[INFO] [stderr]     Checking regex-syntax v0.5.6
[INFO] [stderr]     Checking 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: 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: 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 2.84s
[INFO] running `Command { std: "docker" "inspect" "f05c204ed25ed99ce3d21dea315e809902a97fa722dfaf31df450096c3a85ab7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f05c204ed25ed99ce3d21dea315e809902a97fa722dfaf31df450096c3a85ab7", kill_on_drop: false }`
[INFO] [stdout] f05c204ed25ed99ce3d21dea315e809902a97fa722dfaf31df450096c3a85ab7
