[INFO] fetching crate hs-rust-learn 0.1.0...
[INFO] testing hs-rust-learn-0.1.0 against beta-2025-09-21 for beta-1.91-3
[INFO] extracting crate hs-rust-learn 0.1.0 into /workspace/builds/worker-0-tc2/source
[INFO] started tweaking crates.io crate hs-rust-learn 0.1.0
[INFO] finished tweaking crates.io crate hs-rust-learn 0.1.0
[INFO] tweaked toml for crates.io crate hs-rust-learn 0.1.0 written to /workspace/builds/worker-0-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate hs-rust-learn 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 hs-rust-learn 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] c0dfa478b4596f2e8f1e5ffd84a74afeb67e60bf7b000469bb88ca4aaa721315
[INFO] running `Command { std: "docker" "start" "-a" "c0dfa478b4596f2e8f1e5ffd84a74afeb67e60bf7b000469bb88ca4aaa721315", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "c0dfa478b4596f2e8f1e5ffd84a74afeb67e60bf7b000469bb88ca4aaa721315", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c0dfa478b4596f2e8f1e5ffd84a74afeb67e60bf7b000469bb88ca4aaa721315", kill_on_drop: false }`
[INFO] [stdout] c0dfa478b4596f2e8f1e5ffd84a74afeb67e60bf7b000469bb88ca4aaa721315
[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] 3a86859f6eaed184ed73295ff952545132ab3ac67183a861a9de1d10e11342b3
[INFO] running `Command { std: "docker" "start" "-a" "3a86859f6eaed184ed73295ff952545132ab3ac67183a861a9de1d10e11342b3", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.126
[INFO] [stderr]    Compiling getrandom v0.1.16
[INFO] [stderr]    Compiling cfg-if v1.0.0
[INFO] [stderr]    Compiling ppv-lite86 v0.2.16
[INFO] [stderr]    Compiling rand_core v0.5.1
[INFO] [stderr]    Compiling rand_chacha v0.2.2
[INFO] [stderr]    Compiling rand v0.7.3
[INFO] [stderr]    Compiling hs-rust-learn v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [optimized + debuginfo] target(s) in 3.06s
[INFO] running `Command { std: "docker" "inspect" "3a86859f6eaed184ed73295ff952545132ab3ac67183a861a9de1d10e11342b3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3a86859f6eaed184ed73295ff952545132ab3ac67183a861a9de1d10e11342b3", kill_on_drop: false }`
[INFO] [stdout] 3a86859f6eaed184ed73295ff952545132ab3ac67183a861a9de1d10e11342b3
[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] 27d724394da922c053072d6a27fc8115b91d710940053ebdc2a7524f0876769c
[INFO] running `Command { std: "docker" "start" "-a" "27d724394da922c053072d6a27fc8115b91d710940053ebdc2a7524f0876769c", kill_on_drop: false }`
[INFO] [stderr]    Compiling hs-rust-learn v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0432]: unresolved import `grep_lib`
[INFO] [stdout]  --> tests/another_tests.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use grep_lib;
[INFO] [stdout]   |     ^^^^^^^^ no external crate `grep_lib`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0432`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `hs-rust-learn` (test "another_tests") due to 1 previous error
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] error[E0432]: unresolved import `grep_lib`
[INFO] [stdout]  --> tests/integration_tests.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use grep_lib;
[INFO] [stdout]   |     ^^^^^^^^ no external crate `grep_lib`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0432`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `hs-rust-learn` (test "integration_tests") due to 1 previous error
[INFO] running `Command { std: "docker" "inspect" "27d724394da922c053072d6a27fc8115b91d710940053ebdc2a7524f0876769c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "27d724394da922c053072d6a27fc8115b91d710940053ebdc2a7524f0876769c", kill_on_drop: false }`
[INFO] [stdout] 27d724394da922c053072d6a27fc8115b91d710940053ebdc2a7524f0876769c