[INFO] fetching crate rx_core_operator_buffer 0.0.1...
[INFO] testing rx_core_operator_buffer-0.0.1 against master#562dee4820c458d823175268e41601d4c060588a for pr-154210-2
[INFO] extracting crate rx_core_operator_buffer 0.0.1 into /workspace/builds/worker-6-tc1/source
[INFO] started tweaking crates.io crate rx_core_operator_buffer 0.0.1
[INFO] finished tweaking crates.io crate rx_core_operator_buffer 0.0.1
[INFO] tweaked toml for crates.io crate rx_core_operator_buffer 0.0.1 written to /workspace/builds/worker-6-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate rx_core_operator_buffer 0.0.1 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 rx_core_operator_buffer 0.0.1 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" "+562dee4820c458d823175268e41601d4c060588a" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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] e37fc6820780cc2f69cf360795eecc126fcae9ecd9500c37b70cd3bd4c10def5
[INFO] running `Command { std: "docker" "start" "-a" "e37fc6820780cc2f69cf360795eecc126fcae9ecd9500c37b70cd3bd4c10def5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "e37fc6820780cc2f69cf360795eecc126fcae9ecd9500c37b70cd3bd4c10def5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e37fc6820780cc2f69cf360795eecc126fcae9ecd9500c37b70cd3bd4c10def5", kill_on_drop: false }`
[INFO] [stdout] e37fc6820780cc2f69cf360795eecc126fcae9ecd9500c37b70cd3bd4c10def5
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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] 344c8dc4edc6e9a66eb3fe46e35c6874d87b80a9655c1c27ce7413d67e2050bb
[INFO] running `Command { std: "docker" "start" "-a" "344c8dc4edc6e9a66eb3fe46e35c6874d87b80a9655c1c27ce7413d67e2050bb", kill_on_drop: false }`
[INFO] [stderr]    Compiling rx_core_operator_buffer v0.0.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.13s
[INFO] running `Command { std: "docker" "inspect" "344c8dc4edc6e9a66eb3fe46e35c6874d87b80a9655c1c27ce7413d67e2050bb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "344c8dc4edc6e9a66eb3fe46e35c6874d87b80a9655c1c27ce7413d67e2050bb", kill_on_drop: false }`
[INFO] [stdout] 344c8dc4edc6e9a66eb3fe46e35c6874d87b80a9655c1c27ce7413d67e2050bb
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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] 45ba02dee98e36bdd774d3fea0a79d1ac3d96b8426546ff55ea2370ed79496d6
[INFO] running `Command { std: "docker" "start" "-a" "45ba02dee98e36bdd774d3fea0a79d1ac3d96b8426546ff55ea2370ed79496d6", kill_on_drop: false }`
[INFO] [stderr]    Compiling rx_core_operator_buffer v0.0.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.28s
[INFO] running `Command { std: "docker" "inspect" "45ba02dee98e36bdd774d3fea0a79d1ac3d96b8426546ff55ea2370ed79496d6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "45ba02dee98e36bdd774d3fea0a79d1ac3d96b8426546ff55ea2370ed79496d6", kill_on_drop: false }`
[INFO] [stdout] 45ba02dee98e36bdd774d3fea0a79d1ac3d96b8426546ff55ea2370ed79496d6
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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] ead0c2edfbf3df0e603b6bc5c52e1ef1b3108e15698542ba0cf2b4f7f17cc178
[INFO] running `Command { std: "docker" "start" "-a" "ead0c2edfbf3df0e603b6bc5c52e1ef1b3108e15698542ba0cf2b4f7f17cc178", kill_on_drop: false }`
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/rx_core_operator_buffer-616b902880298110)
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test tests::it_works ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests rx_core_operator_buffer
[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" "ead0c2edfbf3df0e603b6bc5c52e1ef1b3108e15698542ba0cf2b4f7f17cc178", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ead0c2edfbf3df0e603b6bc5c52e1ef1b3108e15698542ba0cf2b4f7f17cc178", kill_on_drop: false }`
[INFO] [stdout] ead0c2edfbf3df0e603b6bc5c52e1ef1b3108e15698542ba0cf2b4f7f17cc178