[INFO] fetching crate minigrep-megastary 0.1.0...
[INFO] testing minigrep-megastary-0.1.0 against beta-2025-09-21 for beta-1.91-3
[INFO] extracting crate minigrep-megastary 0.1.0 into /workspace/builds/worker-0-tc2/source
[INFO] started tweaking crates.io crate minigrep-megastary 0.1.0
[INFO] finished tweaking crates.io crate minigrep-megastary 0.1.0
[INFO] tweaked toml for crates.io crate minigrep-megastary 0.1.0 written to /workspace/builds/worker-0-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate minigrep-megastary 0.1.0 on toolchain beta-2025-09-21
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2025-09-21" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate minigrep-megastary 0.1.0 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" "+beta-2025-09-21" "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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2025-09-21" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] ac70d6ba92ea867666e394700da8484389ac7090c399a0fd2b915c2469b885b4
[INFO] running `Command { std: "docker" "start" "-a" "ac70d6ba92ea867666e394700da8484389ac7090c399a0fd2b915c2469b885b4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "ac70d6ba92ea867666e394700da8484389ac7090c399a0fd2b915c2469b885b4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ac70d6ba92ea867666e394700da8484389ac7090c399a0fd2b915c2469b885b4", kill_on_drop: false }`
[INFO] [stdout] ac70d6ba92ea867666e394700da8484389ac7090c399a0fd2b915c2469b885b4
[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=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2025-09-21" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] ccbffdc745e0b49488d8dd6e2407e2c4a0bacb3a494285ef7e45775a5a05324f
[INFO] running `Command { std: "docker" "start" "-a" "ccbffdc745e0b49488d8dd6e2407e2c4a0bacb3a494285ef7e45775a5a05324f", kill_on_drop: false }`
[INFO] [stderr]    Compiling minigrep-megastary v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `e`
[INFO] [stdout]   --> src/main.rs:10:16
[INFO] [stdout]    |
[INFO] [stdout] 10 |     if let Err(e) = minigrep_megastary::run(config) {
[INFO] [stdout]    |                ^ help: if this is intentional, prefix it with an underscore: `_e`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `err`
[INFO] [stdout]  --> src/main.rs:6:61
[INFO] [stdout]   |
[INFO] [stdout] 6 |     let config = Config::build(env::args()).unwrap_or_else(|err| {
[INFO] [stdout]   |                                                             ^^^ help: if this is intentional, prefix it with an underscore: `_err`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.62s
[INFO] running `Command { std: "docker" "inspect" "ccbffdc745e0b49488d8dd6e2407e2c4a0bacb3a494285ef7e45775a5a05324f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ccbffdc745e0b49488d8dd6e2407e2c4a0bacb3a494285ef7e45775a5a05324f", kill_on_drop: false }`
[INFO] [stdout] ccbffdc745e0b49488d8dd6e2407e2c4a0bacb3a494285ef7e45775a5a05324f
[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=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2025-09-21" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] aca06adee69a99c463d95ec42d03135f594409271723ab7e6e658c396c84c0b2
[INFO] running `Command { std: "docker" "start" "-a" "aca06adee69a99c463d95ec42d03135f594409271723ab7e6e658c396c84c0b2", kill_on_drop: false }`
[INFO] [stderr]    Compiling minigrep-megastary v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `e`
[INFO] [stdout]   --> src/main.rs:10:16
[INFO] [stdout]    |
[INFO] [stdout] 10 |     if let Err(e) = minigrep_megastary::run(config) {
[INFO] [stdout]    |                ^ help: if this is intentional, prefix it with an underscore: `_e`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `err`
[INFO] [stdout]  --> src/main.rs:6:61
[INFO] [stdout]   |
[INFO] [stdout] 6 |     let config = Config::build(env::args()).unwrap_or_else(|err| {
[INFO] [stdout]   |                                                             ^^^ help: if this is intentional, prefix it with an underscore: `_err`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.67s
[INFO] running `Command { std: "docker" "inspect" "aca06adee69a99c463d95ec42d03135f594409271723ab7e6e658c396c84c0b2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "aca06adee69a99c463d95ec42d03135f594409271723ab7e6e658c396c84c0b2", kill_on_drop: false }`
[INFO] [stdout] aca06adee69a99c463d95ec42d03135f594409271723ab7e6e658c396c84c0b2
[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=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2025-09-21" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 21ad2643ebf69ab6141db9f6b2163573b99d7d366fd81eb97eaa13e1e87f5deb
[INFO] running `Command { std: "docker" "start" "-a" "21ad2643ebf69ab6141db9f6b2163573b99d7d366fd81eb97eaa13e1e87f5deb", kill_on_drop: false }`
[INFO] [stdout] 
[INFO] [stdout] running 2 tests
[INFO] [stderr] warning: unused variable: `e`
[INFO] [stderr]   --> src/main.rs:10:16
[INFO] [stderr]    |
[INFO] [stderr] 10 |     if let Err(e) = minigrep_megastary::run(config) {
[INFO] [stderr]    |                ^ help: if this is intentional, prefix it with an underscore: `_e`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `err`
[INFO] [stderr]  --> src/main.rs:6:61
[INFO] [stderr]   |
[INFO] [stderr] 6 |     let config = Config::build(env::args()).unwrap_or_else(|err| {
[INFO] [stderr]   |                                                             ^^^ help: if this is intentional, prefix it with an underscore: `_err`
[INFO] [stderr] 
[INFO] [stderr] warning: `minigrep-megastary` (bin "minigrep-megastary" test) generated 2 warnings
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.05s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/minigrep_megastary-decb98742382e1ef)
[INFO] [stdout] test tests::case_sensitive ... ok
[INFO] [stderr]      Running unittests src/main.rs (/opt/rustwide/target/debug/deps/minigrep_megastary-e1c83e29533e33ed)
[INFO] [stdout] test tests::case_insensitive ... ok
[INFO] [stderr]    Doc-tests minigrep_megastary
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 2 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.10s
[INFO] [stdout] 
[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] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test src/lib.rs - Config::build (line 19) ... FAILED
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout] 
[INFO] [stdout] ---- src/lib.rs - Config::build (line 19) stdout ----
[INFO] [stdout] error[E0432]: unresolved import `minigrep`
[INFO] [stdout]  --> src/lib.rs:21:5
[INFO] [stdout]   |
[INFO] [stdout] 4 | use minigrep::Config;
[INFO] [stdout]   |     ^^^^^^^^ use of unresolved module or unlinked crate `minigrep`
[INFO] [stdout]   |
[INFO] [stdout]   = help: if you wanted to use a crate named `minigrep`, use `cargo add minigrep` to add it to your `Cargo.toml`
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 1 previous error
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0432`.
[INFO] [stdout] Couldn't compile the test.
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout]     src/lib.rs - Config::build (line 19)
[INFO] [stdout] 
[INFO] [stdout] test result: FAILED. 0 passed; 1 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.13s
[INFO] [stdout] 
[INFO] [stderr] error: doctest failed, to rerun pass `--doc`
[INFO] running `Command { std: "docker" "inspect" "21ad2643ebf69ab6141db9f6b2163573b99d7d366fd81eb97eaa13e1e87f5deb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "21ad2643ebf69ab6141db9f6b2163573b99d7d366fd81eb97eaa13e1e87f5deb", kill_on_drop: false }`
[INFO] [stdout] 21ad2643ebf69ab6141db9f6b2163573b99d7d366fd81eb97eaa13e1e87f5deb