[INFO] fetching crate rx_core_operator_take_last 0.0.1...
[INFO] testing rx_core_operator_take_last-0.0.1 against master#562dee4820c458d823175268e41601d4c060588a for pr-154210
[INFO] extracting crate rx_core_operator_take_last 0.0.1 into /workspace/builds/worker-0-tc1/source
[INFO] started tweaking crates.io crate rx_core_operator_take_last 0.0.1
[INFO] finished tweaking crates.io crate rx_core_operator_take_last 0.0.1
[INFO] tweaked toml for crates.io crate rx_core_operator_take_last 0.0.1 written to /workspace/builds/worker-0-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate rx_core_operator_take_last 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_take_last 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-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] a1a839fef54b764798359102ff5711b7141daf936304e14311edac0fdaa4e57b
[INFO] running `Command { std: "docker" "start" "-a" "a1a839fef54b764798359102ff5711b7141daf936304e14311edac0fdaa4e57b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "a1a839fef54b764798359102ff5711b7141daf936304e14311edac0fdaa4e57b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a1a839fef54b764798359102ff5711b7141daf936304e14311edac0fdaa4e57b", kill_on_drop: false }`
[INFO] [stdout] a1a839fef54b764798359102ff5711b7141daf936304e14311edac0fdaa4e57b
[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] a1b0de3ff3b1d45c19c725b76cf4eebdfe7954f401c167f4481e729225a4b963
[INFO] running `Command { std: "docker" "start" "-a" "a1b0de3ff3b1d45c19c725b76cf4eebdfe7954f401c167f4481e729225a4b963", kill_on_drop: false }`
[INFO] [stderr]    Compiling rx_core_operator_take_last v0.0.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.03s
[INFO] running `Command { std: "docker" "inspect" "a1b0de3ff3b1d45c19c725b76cf4eebdfe7954f401c167f4481e729225a4b963", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a1b0de3ff3b1d45c19c725b76cf4eebdfe7954f401c167f4481e729225a4b963", kill_on_drop: false }`
[INFO] [stdout] a1b0de3ff3b1d45c19c725b76cf4eebdfe7954f401c167f4481e729225a4b963
[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] c9c26ceaae6e9070715d107db28fa6bc001378658c96cb419bf3a2d0b090ddc4
[INFO] running `Command { std: "docker" "start" "-a" "c9c26ceaae6e9070715d107db28fa6bc001378658c96cb419bf3a2d0b090ddc4", kill_on_drop: false }`
[INFO] [stderr] error: failed to create directory `/opt/rustwide/target/debug/.fingerprint/rx_core_operator_take_last-2e20531e2c5b64a5`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   No space left on device (os error 28)
[INFO] running `Command { std: "docker" "inspect" "c9c26ceaae6e9070715d107db28fa6bc001378658c96cb419bf3a2d0b090ddc4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c9c26ceaae6e9070715d107db28fa6bc001378658c96cb419bf3a2d0b090ddc4", kill_on_drop: false }`
[INFO] [stdout] c9c26ceaae6e9070715d107db28fa6bc001378658c96cb419bf3a2d0b090ddc4