[INFO] fetching crate logbook_test_baby 0.1.0...
[INFO] testing logbook_test_baby-0.1.0 against beta-2025-10-28 for beta-1.92-2
[INFO] extracting crate logbook_test_baby 0.1.0 into /workspace/builds/worker-0-tc2/source
[INFO] started tweaking crates.io crate logbook_test_baby 0.1.0
[INFO] finished tweaking crates.io crate logbook_test_baby 0.1.0
[INFO] tweaked toml for crates.io crate logbook_test_baby 0.1.0 written to /workspace/builds/worker-0-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate logbook_test_baby 0.1.0 on toolchain beta-2025-10-28
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2025-10-28" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate logbook_test_baby 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-2025-10-28" "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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2025-10-28" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 37e5286aa4f9d1de50b56788faff8df9d75c3db9813220647b51eddba7904842
[INFO] running `Command { std: "docker" "start" "-a" "37e5286aa4f9d1de50b56788faff8df9d75c3db9813220647b51eddba7904842", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "37e5286aa4f9d1de50b56788faff8df9d75c3db9813220647b51eddba7904842", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "37e5286aa4f9d1de50b56788faff8df9d75c3db9813220647b51eddba7904842", kill_on_drop: false }`
[INFO] [stdout] 37e5286aa4f9d1de50b56788faff8df9d75c3db9813220647b51eddba7904842
[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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2025-10-28" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] f76842972d254bbb433d32f9962b515a7610618492adc7403e9f9b2a0b009c5f
[INFO] running `Command { std: "docker" "start" "-a" "f76842972d254bbb433d32f9962b515a7610618492adc7403e9f9b2a0b009c5f", kill_on_drop: false }`
[INFO] [stderr]    Compiling anyhow v1.0.100
[INFO] [stderr]    Compiling logbook_test_baby v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 1.17s
[INFO] running `Command { std: "docker" "inspect" "f76842972d254bbb433d32f9962b515a7610618492adc7403e9f9b2a0b009c5f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f76842972d254bbb433d32f9962b515a7610618492adc7403e9f9b2a0b009c5f", kill_on_drop: false }`
[INFO] [stdout] f76842972d254bbb433d32f9962b515a7610618492adc7403e9f9b2a0b009c5f
[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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2025-10-28" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] f2bf172cba6c546c0b7a114798a257061309c5cd6d1a7f69b9db88d0b5749bb1
[INFO] running `Command { std: "docker" "start" "-a" "f2bf172cba6c546c0b7a114798a257061309c5cd6d1a7f69b9db88d0b5749bb1", kill_on_drop: false }`
[INFO] [stderr]    Compiling rustix v1.1.2
[INFO] [stderr]    Compiling linux-raw-sys v0.11.0
[INFO] [stderr]    Compiling once_cell v1.21.3
[INFO] [stderr]    Compiling tempfile v3.22.0
[INFO] [stderr]    Compiling logbook_test_baby v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 4.05s
[INFO] running `Command { std: "docker" "inspect" "f2bf172cba6c546c0b7a114798a257061309c5cd6d1a7f69b9db88d0b5749bb1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f2bf172cba6c546c0b7a114798a257061309c5cd6d1a7f69b9db88d0b5749bb1", kill_on_drop: false }`
[INFO] [stdout] f2bf172cba6c546c0b7a114798a257061309c5cd6d1a7f69b9db88d0b5749bb1
[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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2025-10-28" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 62fd8b2cd771680fd8c6be9ba6fd5d208ab5a721d4488ab23e34c03ef4f4f7b1
[INFO] running `Command { std: "docker" "start" "-a" "62fd8b2cd771680fd8c6be9ba6fd5d208ab5a721d4488ab23e34c03ef4f4f7b1", kill_on_drop: false }`
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.03s
[INFO] [stdout] 
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/logbook_test_baby-2c0a04efb889f4a8)
[INFO] [stdout] running 5 tests
[INFO] [stderr]      Running unittests src/main.rs (/opt/rustwide/target/debug/deps/logbook_test_baby-3e9c23a962499875)
[INFO] [stdout] test tests::test_read_logbook_fn_returns_none_for_empty_file ... ok
[INFO] [stdout] test tests::test_read_logbook_fn_returns_none_if_file_does_not_exist ... ok
[INFO] [stdout] test tests::test_read_logbook_fn_reads_contents_of_a_file ... ok
[INFO] [stdout] test tests::test_append_message_fn_appends_msg_to_existing_file ... ok
[INFO] [stdout] test tests::test_append_message_fn_creates_file_if_necessary ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 5 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.01s
[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] [stderr]    Doc-tests logbook_test_baby
[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] running `Command { std: "docker" "inspect" "62fd8b2cd771680fd8c6be9ba6fd5d208ab5a721d4488ab23e34c03ef4f4f7b1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "62fd8b2cd771680fd8c6be9ba6fd5d208ab5a721d4488ab23e34c03ef4f4f7b1", kill_on_drop: false }`
[INFO] [stdout] 62fd8b2cd771680fd8c6be9ba6fd5d208ab5a721d4488ab23e34c03ef4f4f7b1