[INFO] fetching crate ferrum_compiler 0.0.4...
[INFO] testing ferrum_compiler-0.0.4 against beta-2025-09-21 for beta-1.91-3
[INFO] extracting crate ferrum_compiler 0.0.4 into /workspace/builds/worker-4-tc2/source
[INFO] started tweaking crates.io crate ferrum_compiler 0.0.4
[INFO] finished tweaking crates.io crate ferrum_compiler 0.0.4
[INFO] tweaked toml for crates.io crate ferrum_compiler 0.0.4 written to /workspace/builds/worker-4-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate ferrum_compiler 0.0.4 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 ferrum_compiler 0.0.4 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-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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] 026d4c58d314a8ec1400613cceda4ccae6acc2b811eca6368e3dd620ea4686fa
[INFO] running `Command { std: "docker" "start" "-a" "026d4c58d314a8ec1400613cceda4ccae6acc2b811eca6368e3dd620ea4686fa", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "026d4c58d314a8ec1400613cceda4ccae6acc2b811eca6368e3dd620ea4686fa", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "026d4c58d314a8ec1400613cceda4ccae6acc2b811eca6368e3dd620ea4686fa", kill_on_drop: false }`
[INFO] [stdout] 026d4c58d314a8ec1400613cceda4ccae6acc2b811eca6368e3dd620ea4686fa
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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] b83c471fdbdb338fe51c275b8343c3cb3deeb790f455dd19d715a80b2365e443
[INFO] running `Command { std: "docker" "start" "-a" "b83c471fdbdb338fe51c275b8343c3cb3deeb790f455dd19d715a80b2365e443", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.63
[INFO] [stderr]    Compiling unicode-ident v1.0.10
[INFO] [stderr]    Compiling quote v1.0.29
[INFO] [stderr]    Compiling anyhow v1.0.71
[INFO] [stderr]    Compiling thiserror v1.0.41
[INFO] [stderr]    Compiling lazy_static v1.4.0
[INFO] [stderr]    Compiling log v0.4.20
[INFO] [stderr]    Compiling syn v2.0.23
[INFO] [stderr]    Compiling thiserror-impl v1.0.41
[INFO] [stderr]    Compiling ferrum_compiler v0.0.4 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 14.23s
[INFO] running `Command { std: "docker" "inspect" "b83c471fdbdb338fe51c275b8343c3cb3deeb790f455dd19d715a80b2365e443", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b83c471fdbdb338fe51c275b8343c3cb3deeb790f455dd19d715a80b2365e443", kill_on_drop: false }`
[INFO] [stdout] b83c471fdbdb338fe51c275b8343c3cb3deeb790f455dd19d715a80b2365e443
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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] dbb2f7ae30eecf5d149724ab2b42946678bdc7123f4efd58fd9720b5724ca83d
[INFO] running `Command { std: "docker" "start" "-a" "dbb2f7ae30eecf5d149724ab2b42946678bdc7123f4efd58fd9720b5724ca83d", kill_on_drop: false }`
[INFO] [stderr]    Compiling ferrum_compiler v0.0.4 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 5.00s
[INFO] running `Command { std: "docker" "inspect" "dbb2f7ae30eecf5d149724ab2b42946678bdc7123f4efd58fd9720b5724ca83d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "dbb2f7ae30eecf5d149724ab2b42946678bdc7123f4efd58fd9720b5724ca83d", kill_on_drop: false }`
[INFO] [stdout] dbb2f7ae30eecf5d149724ab2b42946678bdc7123f4efd58fd9720b5724ca83d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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] 50ecff071fb58e3afa4bd9a4c062dc8d02d10da5e3c0d8db182dfa7cb99ac609
[INFO] running `Command { std: "docker" "start" "-a" "50ecff071fb58e3afa4bd9a4c062dc8d02d10da5e3c0d8db182dfa7cb99ac609", kill_on_drop: false }`
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.07s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/ferrum_compiler-033ea772b6413dae)
[INFO] [stdout] 
[INFO] [stdout] running 5 tests
[INFO] [stdout] test lexer::tests::test_hello_world ... ok
[INFO] [stdout] test parser::tests::test_hello_world ... ok
[INFO] [stdout] test lexer::tests::test_labels ... ok
[INFO] [stdout] test parser::tests::test_empty ... ok
[INFO] [stdout] test lexer::tests::test_empty ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 5 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]      Running tests/mod.rs (/opt/rustwide/target/debug/deps/mod-016ca835da8d4f9b)
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test integration::test_examples ... FAILED
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout] 
[INFO] [stdout] ---- integration::test_examples stdout ----
[INFO] [stdout] Error: Read-only file system (os error 30)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout]     integration::test_examples
[INFO] [stdout] 
[INFO] [stdout] test result: FAILED. 0 passed; 1 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.01s
[INFO] [stdout] 
[INFO] [stderr] error: test failed, to rerun pass `--test mod`
[INFO] running `Command { std: "docker" "inspect" "50ecff071fb58e3afa4bd9a4c062dc8d02d10da5e3c0d8db182dfa7cb99ac609", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "50ecff071fb58e3afa4bd9a4c062dc8d02d10da5e3c0d8db182dfa7cb99ac609", kill_on_drop: false }`
[INFO] [stdout] 50ecff071fb58e3afa4bd9a4c062dc8d02d10da5e3c0d8db182dfa7cb99ac609