[INFO] fetching crate n-observer 0.1.2...
[INFO] testing n-observer-0.1.2 against master#562dee4820c458d823175268e41601d4c060588a for pr-154210-2
[INFO] extracting crate n-observer 0.1.2 into /workspace/builds/worker-0-tc1/source
[INFO] started tweaking crates.io crate n-observer 0.1.2
[INFO] finished tweaking crates.io crate n-observer 0.1.2
[INFO] tweaked toml for crates.io crate n-observer 0.1.2 written to /workspace/builds/worker-0-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate n-observer 0.1.2 on toolchain 562dee4820c458d823175268e41601d4c060588a
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+562dee4820c458d823175268e41601d4c060588a" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate n-observer 0.1.2 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" "+562dee4820c458d823175268e41601d4c060588a" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded rs-schema-derive v0.1.0
[INFO] [stderr]   Downloaded rs-schema-derive-impl v0.1.0
[INFO] [stderr]   Downloaded rs-schema v1.0.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+562dee4820c458d823175268e41601d4c060588a" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 480f116a9229bef230d929aa12559c236094259bde56694662da0f960c5ebda0
[INFO] running `Command { std: "docker" "start" "-a" "480f116a9229bef230d929aa12559c236094259bde56694662da0f960c5ebda0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "480f116a9229bef230d929aa12559c236094259bde56694662da0f960c5ebda0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "480f116a9229bef230d929aa12559c236094259bde56694662da0f960c5ebda0", kill_on_drop: false }`
[INFO] [stdout] 480f116a9229bef230d929aa12559c236094259bde56694662da0f960c5ebda0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/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=forbid" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+562dee4820c458d823175268e41601d4c060588a" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] a20bf69b7d699e33c40d4e605662358c681e614c2aeabb041b104a0a49b0822c
[INFO] running `Command { std: "docker" "start" "-a" "a20bf69b7d699e33c40d4e605662358c681e614c2aeabb041b104a0a49b0822c", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.104
[INFO] [stderr]    Compiling quote v1.0.42
[INFO] [stderr]    Compiling unicode-ident v1.0.22
[INFO] [stderr]    Compiling futures-core v0.3.31
[INFO] [stderr]    Compiling futures-sink v0.3.31
[INFO] [stderr]    Compiling pin-project-lite v0.2.16
[INFO] [stderr]    Compiling futures-task v0.3.31
[INFO] [stderr]    Compiling slab v0.4.11
[INFO] [stderr]    Compiling futures-io v0.3.31
[INFO] [stderr]    Compiling memchr v2.7.6
[INFO] [stderr]    Compiling futures-channel v0.3.31
[INFO] [stderr]    Compiling syn v2.0.111
[INFO] [stderr]    Compiling rs-schema v1.0.0
[INFO] [stderr]    Compiling futures-macro v0.3.31
[INFO] [stderr]    Compiling rs-schema-derive-impl v0.1.0
[INFO] [stderr]    Compiling tokio-macros v2.6.0
[INFO] [stderr]    Compiling rs-schema-derive v0.1.0
[INFO] [stderr]    Compiling tokio v1.48.0
[INFO] [stderr]    Compiling futures-util v0.3.31
[INFO] [stderr]    Compiling futures-executor v0.3.31
[INFO] [stderr]    Compiling futures v0.3.31
[INFO] [stderr]    Compiling n-observer v0.1.2 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 13.37s
[INFO] running `Command { std: "docker" "inspect" "a20bf69b7d699e33c40d4e605662358c681e614c2aeabb041b104a0a49b0822c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a20bf69b7d699e33c40d4e605662358c681e614c2aeabb041b104a0a49b0822c", kill_on_drop: false }`
[INFO] [stdout] a20bf69b7d699e33c40d4e605662358c681e614c2aeabb041b104a0a49b0822c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/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=forbid" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+562dee4820c458d823175268e41601d4c060588a" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] fd1a0d4c399feb8c6361fa21798347672ec7178744b9740558d69f3bfb3c346e
[INFO] running `Command { std: "docker" "start" "-a" "fd1a0d4c399feb8c6361fa21798347672ec7178744b9740558d69f3bfb3c346e", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.178
[INFO] [stderr]    Compiling parking_lot_core v0.9.12
[INFO] [stderr]    Compiling cfg-if v1.0.4
[INFO] [stderr]    Compiling smallvec v1.15.1
[INFO] [stderr]    Compiling sdd v3.0.10
[INFO] [stderr]    Compiling serial_test_derive v3.2.0
[INFO] [stderr]    Compiling once_cell v1.21.3
[INFO] [stderr]    Compiling log v0.4.29
[INFO] [stderr]    Compiling lock_api v0.4.14
[INFO] [stderr]    Compiling scc v2.4.0
[INFO] [stderr]    Compiling parking_lot v0.12.5
[INFO] [stderr]    Compiling serial_test v3.2.0
[INFO] [stderr]    Compiling n-observer v0.1.2 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 4.92s
[INFO] running `Command { std: "docker" "inspect" "fd1a0d4c399feb8c6361fa21798347672ec7178744b9740558d69f3bfb3c346e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "fd1a0d4c399feb8c6361fa21798347672ec7178744b9740558d69f3bfb3c346e", kill_on_drop: false }`
[INFO] [stdout] fd1a0d4c399feb8c6361fa21798347672ec7178744b9740558d69f3bfb3c346e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/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=forbid" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+562dee4820c458d823175268e41601d4c060588a" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 19172d9c3c7864523ae56b972c6c943a6e5e3eba4c33e0ed3cf3a087beec0db2
[INFO] running `Command { std: "docker" "start" "-a" "19172d9c3c7864523ae56b972c6c943a6e5e3eba4c33e0ed3cf3a087beec0db2", 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/n_observer-ceef42e3466fa5ac)
[INFO] [stdout] 
[INFO] [stdout] running 10 tests
[INFO] [stdout] test observer::tests::test_observer_chain_middle_dropped ... ok
[INFO] [stdout] test observer::tests::test_observer_multiple ... ok
[INFO] [stdout] test observer::tests::test_observer_chained ... ok
[INFO] [stdout] test observer::tests::test_observer_multiple_publishers ... ok
[INFO] [stderr]      Running unittests src/main.rs (/opt/rustwide/target/debug/deps/n_observer-0c778d6a626ebab6)
[INFO] [stdout] test observer::tests::test_observer_initial_value ... ok
[INFO] [stdout] test observer::tests::test_observer_single_multiple_pub ... ok
[INFO] [stdout] test observer::tests::test_observer_with_transform ... ok
[INFO] [stdout] test observer::tests::test_observer_transform_error_multiparent ... ok
[INFO] [stdout] test observer::tests::test_observer_transform_error_single ... ok
[INFO] [stdout] test observer::tests::test_observer_single ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 10 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 n_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] running `Command { std: "docker" "inspect" "19172d9c3c7864523ae56b972c6c943a6e5e3eba4c33e0ed3cf3a087beec0db2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "19172d9c3c7864523ae56b972c6c943a6e5e3eba4c33e0ed3cf3a087beec0db2", kill_on_drop: false }`
[INFO] [stdout] 19172d9c3c7864523ae56b972c6c943a6e5e3eba4c33e0ed3cf3a087beec0db2