[INFO] cloning repository https://github.com/tsingtwo/2023_ZJU_RUST_HW1
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/tsingtwo/2023_ZJU_RUST_HW1" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftsingtwo%2F2023_ZJU_RUST_HW1", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftsingtwo%2F2023_ZJU_RUST_HW1'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 24cd6c147a858d57739ea50d22b289a8211db268
[INFO] checking tsingtwo/2023_ZJU_RUST_HW1 against try#b1f2594eac607c1f051534800237eeedb5590a49 for pr-139493-3
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftsingtwo%2F2023_ZJU_RUST_HW1" "/workspace/builds/worker-0-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-0-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/tsingtwo/2023_ZJU_RUST_HW1
[INFO] finished tweaking git repo https://github.com/tsingtwo/2023_ZJU_RUST_HW1
[INFO] tweaked toml for git repo https://github.com/tsingtwo/2023_ZJU_RUST_HW1 written to /workspace/builds/worker-0-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/tsingtwo/2023_ZJU_RUST_HW1 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/tsingtwo/2023_ZJU_RUST_HW1 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-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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] 3a6eb0dfe2cea01b2be274d07588444fecdd579be743f7b96664863b845fc320
[INFO] running `Command { std: "docker" "start" "-a" "3a6eb0dfe2cea01b2be274d07588444fecdd579be743f7b96664863b845fc320", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "3a6eb0dfe2cea01b2be274d07588444fecdd579be743f7b96664863b845fc320", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3a6eb0dfe2cea01b2be274d07588444fecdd579be743f7b96664863b845fc320", kill_on_drop: false }`
[INFO] [stdout] 3a6eb0dfe2cea01b2be274d07588444fecdd579be743f7b96664863b845fc320
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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] 8638c9a4bb150655bf736dbf4cc0eea7b30c96822de21de8bf7292b6e3aef6eb
[INFO] running `Command { std: "docker" "start" "-a" "8638c9a4bb150655bf736dbf4cc0eea7b30c96822de21de8bf7292b6e3aef6eb", kill_on_drop: false }`
[INFO] [stderr]    Compiling rustix v0.38.11
[INFO] [stderr]     Checking tracing-core v0.1.31
[INFO] [stderr]     Checking linux-raw-sys v0.4.5
[INFO] [stderr]     Checking bitflags v2.4.0
[INFO] [stderr]     Checking memchr v2.6.3
[INFO] [stderr]    Compiling syn v2.0.31
[INFO] [stderr]     Checking log v0.4.20
[INFO] [stderr]     Checking regex-syntax v0.7.5
[INFO] [stderr]     Checking tracing-log v0.1.3
[INFO] [stderr]     Checking aho-corasick v1.0.5
[INFO] [stderr]     Checking tracing-subscriber v0.3.17
[INFO] [stderr]     Checking is-terminal v0.4.9
[INFO] [stderr]     Checking colored v2.0.4
[INFO] [stderr]     Checking regex-automata v0.3.8
[INFO] [stderr]     Checking regex v1.9.5
[INFO] [stderr]    Compiling tracing-attributes v0.1.26
[INFO] [stderr]     Checking tracing v0.1.37
[INFO] [stderr]     Checking hw1 v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `std::string`
[INFO] [stdout]  --> src/main.rs:6:5
[INFO] [stdout]   |
[INFO] [stdout] 6 | use std::string;
[INFO] [stdout]   |     ^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::env`
[INFO] [stdout]  --> src/handler/convert_to_regex.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | use std::env;
[INFO] [stdout]   |     ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::fs`
[INFO] [stdout]  --> src/handler/convert_to_regex.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | use std::fs;
[INFO] [stdout]   |     ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::path::Path`
[INFO] [stdout]  --> src/handler/convert_to_regex.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 4 | use std::path::Path;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::string`
[INFO] [stdout]  --> src/handler/convert_to_regex.rs:6:5
[INFO] [stdout]   |
[INFO] [stdout] 6 | use std::string;
[INFO] [stdout]   |     ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::string`
[INFO] [stdout]  --> src/main.rs:6:5
[INFO] [stdout]   |
[INFO] [stdout] 6 | use std::string;
[INFO] [stdout]   |     ^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::env`
[INFO] [stdout]  --> src/handler/convert_to_regex.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | use std::env;
[INFO] [stdout]   |     ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::fs`
[INFO] [stdout]  --> src/handler/convert_to_regex.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | use std::fs;
[INFO] [stdout]   |     ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::path::Path`
[INFO] [stdout]  --> src/handler/convert_to_regex.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 4 | use std::path::Path;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::string`
[INFO] [stdout]  --> src/handler/convert_to_regex.rs:6:5
[INFO] [stdout]   |
[INFO] [stdout] 6 | use std::string;
[INFO] [stdout]   |     ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `enter`
[INFO] [stdout]   --> src/main.rs:19:9
[INFO] [stdout]    |
[INFO] [stdout] 19 |     let enter = span.enter();
[INFO] [stdout]    |         ^^^^^ help: if this is intentional, prefix it with an underscore: `_enter`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `ret` is never read
[INFO] [stdout]   --> src/main.rs:43:36
[INFO] [stdout]    |
[INFO] [stdout] 43 |         let mut ret: Vec<String> = Vec::new();
[INFO] [stdout]    |                                    ^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: maybe it is overwritten before being read?
[INFO] [stdout]    = note: `#[warn(unused_assignments)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `enter`
[INFO] [stdout]   --> src/main.rs:19:9
[INFO] [stdout]    |
[INFO] [stdout] 19 |     let enter = span.enter();
[INFO] [stdout]    |         ^^^^^ help: if this is intentional, prefix it with an underscore: `_enter`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `ret` is never read
[INFO] [stdout]   --> src/main.rs:43:36
[INFO] [stdout]    |
[INFO] [stdout] 43 |         let mut ret: Vec<String> = Vec::new();
[INFO] [stdout]    |                                    ^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: maybe it is overwritten before being read?
[INFO] [stdout]    = note: `#[warn(unused_assignments)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `filename`
[INFO] [stdout]    --> src/main.rs:184:31
[INFO] [stdout]     |
[INFO] [stdout] 184 |             }else if let Some(filename) =path.file_name().and_then(|s| s.to_str()) {
[INFO] [stdout]     |                               ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_filename`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `filename`
[INFO] [stdout]    --> src/main.rs:184:31
[INFO] [stdout]     |
[INFO] [stdout] 184 |             }else if let Some(filename) =path.file_name().and_then(|s| s.to_str()) {
[INFO] [stdout]     |                               ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_filename`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 6.68s
[INFO] running `Command { std: "docker" "inspect" "8638c9a4bb150655bf736dbf4cc0eea7b30c96822de21de8bf7292b6e3aef6eb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8638c9a4bb150655bf736dbf4cc0eea7b30c96822de21de8bf7292b6e3aef6eb", kill_on_drop: false }`
[INFO] [stdout] 8638c9a4bb150655bf736dbf4cc0eea7b30c96822de21de8bf7292b6e3aef6eb
