[INFO] fetching crate walrus-core 0.0.10...
[INFO] testing walrus-core-0.0.10 against try#dec9417b8611e34e787a3e4c37686b5131f9e5c5 for pr-154210-2
[INFO] extracting crate walrus-core 0.0.10 into /workspace/builds/worker-3-tc2/source
[INFO] started tweaking crates.io crate walrus-core 0.0.10
[INFO] finished tweaking crates.io crate walrus-core 0.0.10
[INFO] tweaked toml for crates.io crate walrus-core 0.0.10 written to /workspace/builds/worker-3-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate walrus-core 0.0.10 on toolchain dec9417b8611e34e787a3e4c37686b5131f9e5c5
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+dec9417b8611e34e787a3e4c37686b5131f9e5c5" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate walrus-core 0.0.10 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" "+dec9417b8611e34e787a3e4c37686b5131f9e5c5" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+dec9417b8611e34e787a3e4c37686b5131f9e5c5" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 25e27213bfbaf8b81067a2807c2b129cdaf540817a7adc43cdc3d910a0f16964
[INFO] running `Command { std: "docker" "start" "-a" "25e27213bfbaf8b81067a2807c2b129cdaf540817a7adc43cdc3d910a0f16964", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "25e27213bfbaf8b81067a2807c2b129cdaf540817a7adc43cdc3d910a0f16964", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "25e27213bfbaf8b81067a2807c2b129cdaf540817a7adc43cdc3d910a0f16964", kill_on_drop: false }`
[INFO] [stdout] 25e27213bfbaf8b81067a2807c2b129cdaf540817a7adc43cdc3d910a0f16964
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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=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" "+dec9417b8611e34e787a3e4c37686b5131f9e5c5" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 04ca0fe41e967831d7657581916c430183d6f8fa38f6176dfea129ef73c8a309
[INFO] running `Command { std: "docker" "start" "-a" "04ca0fe41e967831d7657581916c430183d6f8fa38f6176dfea129ef73c8a309", kill_on_drop: false }`
[INFO] [stderr]    Compiling either v1.15.0
[INFO] [stderr]    Compiling bytes v1.11.1
[INFO] [stderr]    Compiling regex-syntax v0.8.10
[INFO] [stderr]    Compiling fixedbitset v0.5.7
[INFO] [stderr]    Compiling serde_json v1.0.149
[INFO] [stderr]    Compiling prettyplease v0.2.37
[INFO] [stderr]    Compiling ref-cast v1.0.25
[INFO] [stderr]    Compiling multimap v0.10.1
[INFO] [stderr]    Compiling heck v0.5.0
[INFO] [stderr]    Compiling errno v0.3.14
[INFO] [stderr]    Compiling serde_derive_internals v0.29.1
[INFO] [stderr]    Compiling ref-cast-impl v1.0.25
[INFO] [stderr]    Compiling tempfile v3.26.0
[INFO] [stderr]    Compiling futures-core v0.3.32
[INFO] [stderr]    Compiling dirs-sys v0.5.0
[INFO] [stderr]    Compiling mio v1.1.1
[INFO] [stderr]    Compiling signal-hook-registry v1.4.8
[INFO] [stderr]    Compiling petgraph v0.7.1
[INFO] [stderr]    Compiling tracing-core v0.1.36
[INFO] [stderr]    Compiling itertools v0.14.0
[INFO] [stderr]    Compiling socket2 v0.6.3
[INFO] [stderr]    Compiling async-stream-impl v0.3.6
[INFO] [stderr]    Compiling futures-macro v0.3.32
[INFO] [stderr]    Compiling tokio-macros v2.6.1
[INFO] [stderr]    Compiling dyn-clone v1.0.20
[INFO] [stderr]    Compiling dirs v6.0.0
[INFO] [stderr]    Compiling tracing v0.1.44
[INFO] [stderr]    Compiling async-stream v0.3.6
[INFO] [stderr]    Compiling tokio v1.50.0
[INFO] [stderr]    Compiling futures-util v0.3.32
[INFO] [stderr]    Compiling schemars_derive v1.2.1
[INFO] [stderr]    Compiling crabtalk-core v0.0.6
[INFO] [stderr]    Compiling regex-automata v0.4.14
[INFO] [stderr]    Compiling prost-derive v0.13.5
[INFO] [stderr]    Compiling schemars v1.2.1
[INFO] [stderr]    Compiling prost v0.13.5
[INFO] [stderr]    Compiling prost-types v0.13.5
[INFO] [stderr]    Compiling regex v1.12.3
[INFO] [stderr]    Compiling prost-build v0.13.5
[INFO] [stderr]    Compiling walrus-core v0.0.10 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 20.62s
[INFO] running `Command { std: "docker" "inspect" "04ca0fe41e967831d7657581916c430183d6f8fa38f6176dfea129ef73c8a309", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "04ca0fe41e967831d7657581916c430183d6f8fa38f6176dfea129ef73c8a309", kill_on_drop: false }`
[INFO] [stdout] 04ca0fe41e967831d7657581916c430183d6f8fa38f6176dfea129ef73c8a309
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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=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" "+dec9417b8611e34e787a3e4c37686b5131f9e5c5" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 26a2ca3e3b68952cbf2e9a0ddef435c045b8bed3087caf7801a9a5924d98855e
[INFO] running `Command { std: "docker" "start" "-a" "26a2ca3e3b68952cbf2e9a0ddef435c045b8bed3087caf7801a9a5924d98855e", kill_on_drop: false }`
[INFO] [stderr]    Compiling walrus-core v0.0.10 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 3.76s
[INFO] running `Command { std: "docker" "inspect" "26a2ca3e3b68952cbf2e9a0ddef435c045b8bed3087caf7801a9a5924d98855e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "26a2ca3e3b68952cbf2e9a0ddef435c045b8bed3087caf7801a9a5924d98855e", kill_on_drop: false }`
[INFO] [stdout] 26a2ca3e3b68952cbf2e9a0ddef435c045b8bed3087caf7801a9a5924d98855e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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=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" "+dec9417b8611e34e787a3e4c37686b5131f9e5c5" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 3b5a835ca13c1000bece68decc365a91bd973da298425afe9d09203a05fdd48c
[INFO] running `Command { std: "docker" "start" "-a" "3b5a835ca13c1000bece68decc365a91bd973da298425afe9d09203a05fdd48c", kill_on_drop: false }`
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.11s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/walrus_core-ef6824318bdf1054)
[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 walrus_core
[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" "3b5a835ca13c1000bece68decc365a91bd973da298425afe9d09203a05fdd48c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3b5a835ca13c1000bece68decc365a91bd973da298425afe9d09203a05fdd48c", kill_on_drop: false }`
[INFO] [stdout] 3b5a835ca13c1000bece68decc365a91bd973da298425afe9d09203a05fdd48c