[INFO] fetching crate running_buffer 0.1.1...
[INFO] testing running_buffer-0.1.1 against try#dec9417b8611e34e787a3e4c37686b5131f9e5c5 for pr-154210-2
[INFO] extracting crate running_buffer 0.1.1 into /workspace/builds/worker-2-tc2/source
[INFO] started tweaking crates.io crate running_buffer 0.1.1
[INFO] finished tweaking crates.io crate running_buffer 0.1.1
[INFO] tweaked toml for crates.io crate running_buffer 0.1.1 written to /workspace/builds/worker-2-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate running_buffer 0.1.1 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 running_buffer 0.1.1 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-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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] e90688ce233e4d28ebe677ff379713ac076b09fbf951b0125c76481f00f54ad4
[INFO] running `Command { std: "docker" "start" "-a" "e90688ce233e4d28ebe677ff379713ac076b09fbf951b0125c76481f00f54ad4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "e90688ce233e4d28ebe677ff379713ac076b09fbf951b0125c76481f00f54ad4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e90688ce233e4d28ebe677ff379713ac076b09fbf951b0125c76481f00f54ad4", kill_on_drop: false }`
[INFO] [stdout] e90688ce233e4d28ebe677ff379713ac076b09fbf951b0125c76481f00f54ad4
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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] f7bd0dea3c29f0a6af883a0b12b23e10e299589f5611e71f44ac05de5cda4e2e
[INFO] running `Command { std: "docker" "start" "-a" "f7bd0dea3c29f0a6af883a0b12b23e10e299589f5611e71f44ac05de5cda4e2e", kill_on_drop: false }`
[INFO] [stderr]    Compiling circular-buffer v1.1.0
[INFO] [stderr]    Compiling running_buffer v0.1.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.40s
[INFO] running `Command { std: "docker" "inspect" "f7bd0dea3c29f0a6af883a0b12b23e10e299589f5611e71f44ac05de5cda4e2e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f7bd0dea3c29f0a6af883a0b12b23e10e299589f5611e71f44ac05de5cda4e2e", kill_on_drop: false }`
[INFO] [stdout] f7bd0dea3c29f0a6af883a0b12b23e10e299589f5611e71f44ac05de5cda4e2e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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] 44768cdcdc37d46c1da8b690e629c9da012f20df10931d064cb0a27d592d5c5b
[INFO] running `Command { std: "docker" "start" "-a" "44768cdcdc37d46c1da8b690e629c9da012f20df10931d064cb0a27d592d5c5b", kill_on_drop: false }`
[INFO] [stderr]    Compiling running_buffer v0.1.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.44s
[INFO] running `Command { std: "docker" "inspect" "44768cdcdc37d46c1da8b690e629c9da012f20df10931d064cb0a27d592d5c5b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "44768cdcdc37d46c1da8b690e629c9da012f20df10931d064cb0a27d592d5c5b", kill_on_drop: false }`
[INFO] [stdout] 44768cdcdc37d46c1da8b690e629c9da012f20df10931d064cb0a27d592d5c5b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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] 361441fdd503fdc20189ba435d3ecca425cdfac01e13920cb59d239657686e4f
[INFO] running `Command { std: "docker" "start" "-a" "361441fdd503fdc20189ba435d3ecca425cdfac01e13920cb59d239657686e4f", kill_on_drop: false }`
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.04s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/running_buffer-62356a9aaf327101)
[INFO] [stdout] 
[INFO] [stdout] running 2 tests
[INFO] [stdout] test history::test::push ... ok
[INFO] [stdout] test history::test::joined ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 2 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests running_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" "361441fdd503fdc20189ba435d3ecca425cdfac01e13920cb59d239657686e4f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "361441fdd503fdc20189ba435d3ecca425cdfac01e13920cb59d239657686e4f", kill_on_drop: false }`
[INFO] [stdout] 361441fdd503fdc20189ba435d3ecca425cdfac01e13920cb59d239657686e4f