[INFO] fetching crate rx_core_observer_print 0.2.1...
[INFO] testing rx_core_observer_print-0.2.1 against try#dec9417b8611e34e787a3e4c37686b5131f9e5c5 for pr-154210-2
[INFO] extracting crate rx_core_observer_print 0.2.1 into /workspace/builds/worker-3-tc2/source
[INFO] started tweaking crates.io crate rx_core_observer_print 0.2.1
[INFO] finished tweaking crates.io crate rx_core_observer_print 0.2.1
[INFO] tweaked toml for crates.io crate rx_core_observer_print 0.2.1 written to /workspace/builds/worker-3-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate rx_core_observer_print 0.2.1 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 rx_core_observer_print 0.2.1 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] f5c561d51890c12b468d48c8c7f5b61b2c5e4b5f5d3f7e7782ed809921232eb3
[INFO] running `Command { std: "docker" "start" "-a" "f5c561d51890c12b468d48c8c7f5b61b2c5e4b5f5d3f7e7782ed809921232eb3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "f5c561d51890c12b468d48c8c7f5b61b2c5e4b5f5d3f7e7782ed809921232eb3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f5c561d51890c12b468d48c8c7f5b61b2c5e4b5f5d3f7e7782ed809921232eb3", kill_on_drop: false }`
[INFO] [stdout] f5c561d51890c12b468d48c8c7f5b61b2c5e4b5f5d3f7e7782ed809921232eb3
[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] e3ddb43fed4121e873ce9defd121db582b8ff628ada63d968a3ce8c4211943e7
[INFO] running `Command { std: "docker" "start" "-a" "e3ddb43fed4121e873ce9defd121db582b8ff628ada63d968a3ce8c4211943e7", kill_on_drop: false }`
[INFO] [stderr]    Compiling bitflags v2.10.0
[INFO] [stderr]    Compiling disqualified v1.0.0
[INFO] [stderr]    Compiling proc-macro2 v1.0.106
[INFO] [stderr]    Compiling thiserror v2.0.18
[INFO] [stderr]    Compiling quote v1.0.44
[INFO] [stderr]    Compiling syn v2.0.114
[INFO] [stderr]    Compiling thiserror-impl v2.0.18
[INFO] [stderr]    Compiling derive-where v1.6.0
[INFO] [stderr]    Compiling variadics_please v1.1.0
[INFO] [stderr]    Compiling rx_core_macro_common v0.2.1
[INFO] [stderr]    Compiling rx_core_macro_operator_derive v0.2.1
[INFO] [stderr]    Compiling rx_core_macro_subscription_derive v0.2.1
[INFO] [stderr]    Compiling rx_core_macro_observable_derive v0.2.1
[INFO] [stderr]    Compiling rx_core_macro_observer_derive v0.2.1
[INFO] [stderr]    Compiling rx_core_macro_subscriber_derive v0.2.1
[INFO] [stderr]    Compiling rx_core_common v0.2.1
[INFO] [stderr]    Compiling rx_core_observer_print v0.2.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 10.90s
[INFO] running `Command { std: "docker" "inspect" "e3ddb43fed4121e873ce9defd121db582b8ff628ada63d968a3ce8c4211943e7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e3ddb43fed4121e873ce9defd121db582b8ff628ada63d968a3ce8c4211943e7", kill_on_drop: false }`
[INFO] [stdout] e3ddb43fed4121e873ce9defd121db582b8ff628ada63d968a3ce8c4211943e7
[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] 5b810f1f0ac17ea5efbf8314ce4cb17bbfa29acfad0c88ed1e5e1ceabbe2554f
[INFO] running `Command { std: "docker" "start" "-a" "5b810f1f0ac17ea5efbf8314ce4cb17bbfa29acfad0c88ed1e5e1ceabbe2554f", kill_on_drop: false }`
[INFO] [stderr]    Compiling rx_core_observer_print v0.2.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.36s
[INFO] running `Command { std: "docker" "inspect" "5b810f1f0ac17ea5efbf8314ce4cb17bbfa29acfad0c88ed1e5e1ceabbe2554f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5b810f1f0ac17ea5efbf8314ce4cb17bbfa29acfad0c88ed1e5e1ceabbe2554f", kill_on_drop: false }`
[INFO] [stdout] 5b810f1f0ac17ea5efbf8314ce4cb17bbfa29acfad0c88ed1e5e1ceabbe2554f
[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] 8fec48bfe5abf45b8c7d1e10ae5f3413bee605284cd1f643281976594aa71c9e
[INFO] running `Command { std: "docker" "start" "-a" "8fec48bfe5abf45b8c7d1e10ae5f3413bee605284cd1f643281976594aa71c9e", kill_on_drop: false }`
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.06s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/rx_core_observer_print-b42c16d3f98ee456)
[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 rx_core_observer_print
[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" "8fec48bfe5abf45b8c7d1e10ae5f3413bee605284cd1f643281976594aa71c9e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8fec48bfe5abf45b8c7d1e10ae5f3413bee605284cd1f643281976594aa71c9e", kill_on_drop: false }`
[INFO] [stdout] 8fec48bfe5abf45b8c7d1e10ae5f3413bee605284cd1f643281976594aa71c9e