[INFO] fetching crate event-observer 0.1.0...
[INFO] testing event-observer-0.1.0 against beta-2025-09-21 for beta-1.91-3
[INFO] extracting crate event-observer 0.1.0 into /workspace/builds/worker-0-tc2/source
[INFO] started tweaking crates.io crate event-observer 0.1.0
[INFO] finished tweaking crates.io crate event-observer 0.1.0
[INFO] tweaked toml for crates.io crate event-observer 0.1.0 written to /workspace/builds/worker-0-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate event-observer 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] 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] 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] e4e8ec9de59d3305f647c08476ffa1e6562114438bc4a9beb276f5318e31244e
[INFO] running `Command { std: "docker" "start" "-a" "e4e8ec9de59d3305f647c08476ffa1e6562114438bc4a9beb276f5318e31244e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "e4e8ec9de59d3305f647c08476ffa1e6562114438bc4a9beb276f5318e31244e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e4e8ec9de59d3305f647c08476ffa1e6562114438bc4a9beb276f5318e31244e", kill_on_drop: false }`
[INFO] [stdout] e4e8ec9de59d3305f647c08476ffa1e6562114438bc4a9beb276f5318e31244e
[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] 694eab84a9106fe809579bd55e4cf0209b06d6a29bddf137cf1b7a6b005cdab5
[INFO] running `Command { std: "docker" "start" "-a" "694eab84a9106fe809579bd55e4cf0209b06d6a29bddf137cf1b7a6b005cdab5", kill_on_drop: false }`
[INFO] [stderr]    Compiling event-observer v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.14s
[INFO] running `Command { std: "docker" "inspect" "694eab84a9106fe809579bd55e4cf0209b06d6a29bddf137cf1b7a6b005cdab5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "694eab84a9106fe809579bd55e4cf0209b06d6a29bddf137cf1b7a6b005cdab5", kill_on_drop: false }`
[INFO] [stdout] 694eab84a9106fe809579bd55e4cf0209b06d6a29bddf137cf1b7a6b005cdab5
[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] 122fb1e23c9d31f58a3dabec5ade221faef5e870b8ecf557f9762edf44708a34
[INFO] running `Command { std: "docker" "start" "-a" "122fb1e23c9d31f58a3dabec5ade221faef5e870b8ecf557f9762edf44708a34", kill_on_drop: false }`
[INFO] [stderr]    Compiling event-observer v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.32s
[INFO] running `Command { std: "docker" "inspect" "122fb1e23c9d31f58a3dabec5ade221faef5e870b8ecf557f9762edf44708a34", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "122fb1e23c9d31f58a3dabec5ade221faef5e870b8ecf557f9762edf44708a34", kill_on_drop: false }`
[INFO] [stdout] 122fb1e23c9d31f58a3dabec5ade221faef5e870b8ecf557f9762edf44708a34
[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] 11b0588fb5ea3c201e1254115bdcd74478a25da097bd179a5f76dee0772b1b38
[INFO] running `Command { std: "docker" "start" "-a" "11b0588fb5ea3c201e1254115bdcd74478a25da097bd179a5f76dee0772b1b38", kill_on_drop: false }`
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/event_observer-6127df0a246ede67)
[INFO] [stderr]    Doc-tests event_observer
[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 2 tests
[INFO] [stdout] test src/lib.rs - (line 57) ... ok
[INFO] [stdout] test src/lib.rs - (line 9) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 2 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.37s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "11b0588fb5ea3c201e1254115bdcd74478a25da097bd179a5f76dee0772b1b38", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "11b0588fb5ea3c201e1254115bdcd74478a25da097bd179a5f76dee0772b1b38", kill_on_drop: false }`
[INFO] [stdout] 11b0588fb5ea3c201e1254115bdcd74478a25da097bd179a5f76dee0772b1b38