[INFO] fetching crate log_err 1.1.1...
[INFO] testing log_err-1.1.1 against beta-2025-09-21 for beta-1.91-3
[INFO] extracting crate log_err 1.1.1 into /workspace/builds/worker-2-tc2/source
[INFO] started tweaking crates.io crate log_err 1.1.1
[INFO] finished tweaking crates.io crate log_err 1.1.1
[INFO] tweaked toml for crates.io crate log_err 1.1.1 written to /workspace/builds/worker-2-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate log_err 1.1.1 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] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2025-09-21" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 36 packages to latest compatible versions
[INFO] [stderr]       Adding simplelog v0.10.2 (available: v0.12.2)
[INFO] [stderr]       Adding termcolor v1.1.3 (available: v1.4.1)
[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-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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] 4e42384ea9be1e4a0d110021e61eec180130f3fd3377b746debc58b6bef5590b
[INFO] running `Command { std: "docker" "start" "-a" "4e42384ea9be1e4a0d110021e61eec180130f3fd3377b746debc58b6bef5590b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "4e42384ea9be1e4a0d110021e61eec180130f3fd3377b746debc58b6bef5590b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4e42384ea9be1e4a0d110021e61eec180130f3fd3377b746debc58b6bef5590b", kill_on_drop: false }`
[INFO] [stdout] 4e42384ea9be1e4a0d110021e61eec180130f3fd3377b746debc58b6bef5590b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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] 96e5e3d93aaf678abc7d02a888d7ff8ec72cd4373d36a41bd0f6e35f426f7f33
[INFO] running `Command { std: "docker" "start" "-a" "96e5e3d93aaf678abc7d02a888d7ff8ec72cd4373d36a41bd0f6e35f426f7f33", kill_on_drop: false }`
[INFO] [stderr]    Compiling log_err v1.1.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.19s
[INFO] running `Command { std: "docker" "inspect" "96e5e3d93aaf678abc7d02a888d7ff8ec72cd4373d36a41bd0f6e35f426f7f33", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "96e5e3d93aaf678abc7d02a888d7ff8ec72cd4373d36a41bd0f6e35f426f7f33", kill_on_drop: false }`
[INFO] [stdout] 96e5e3d93aaf678abc7d02a888d7ff8ec72cd4373d36a41bd0f6e35f426f7f33
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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] 037949ec397948d6f7f0519312d4364b8df791d7a864786ee9a1a4bd4e2a475b
[INFO] running `Command { std: "docker" "start" "-a" "037949ec397948d6f7f0519312d4364b8df791d7a864786ee9a1a4bd4e2a475b", kill_on_drop: false }`
[INFO] [stderr]    Compiling simplelog v0.10.2
[INFO] [stderr]    Compiling log_err v1.1.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 1.00s
[INFO] running `Command { std: "docker" "inspect" "037949ec397948d6f7f0519312d4364b8df791d7a864786ee9a1a4bd4e2a475b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "037949ec397948d6f7f0519312d4364b8df791d7a864786ee9a1a4bd4e2a475b", kill_on_drop: false }`
[INFO] [stdout] 037949ec397948d6f7f0519312d4364b8df791d7a864786ee9a1a4bd4e2a475b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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] 4d63768f9e8d39119ec3cbb26803bda0a0141bb6b14618a9fcd58c4d1e621f48
[INFO] running `Command { std: "docker" "start" "-a" "4d63768f9e8d39119ec3cbb26803bda0a0141bb6b14618a9fcd58c4d1e621f48", kill_on_drop: false }`
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.04s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/log_err-e54c77574b0cfa4f)
[INFO] [stdout] 
[INFO] [stdout] running 3 tests
[INFO] [stderr] 10:46:52 [ERROR] A wild error SHOULD appear
[INFO] [stderr] 10:46:52 [ERROR] called `Option::unwrap()` on a `None` value
[INFO] [stderr] 10:46:52 [ERROR] called `Result::unwrap()` on an `Err` value: "a wild error has appeared!"
[INFO] [stdout] test test::test_option_log_expect - should panic ... ok
[INFO] [stdout] test test::test_option_log_unwrap - should panic ... ok
[INFO] [stdout] test test::test_log_unwrap - should panic ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 3 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.02s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests log_err
[INFO] [stdout] 
[INFO] [stdout] running 2 tests
[INFO] [stdout] test src/lib.rs - (line 17) ... ok
[INFO] [stdout] test src/lib.rs - (line 8) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 2 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.40s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "4d63768f9e8d39119ec3cbb26803bda0a0141bb6b14618a9fcd58c4d1e621f48", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4d63768f9e8d39119ec3cbb26803bda0a0141bb6b14618a9fcd58c4d1e621f48", kill_on_drop: false }`
[INFO] [stdout] 4d63768f9e8d39119ec3cbb26803bda0a0141bb6b14618a9fcd58c4d1e621f48