[INFO] fetching crate bufs 0.0.0...
[INFO] testing bufs-0.0.0 against 1.55.0 for beta-1.56-1
[INFO] extracting crate bufs 0.0.0 into /workspace/builds/worker-50/source
[INFO] validating manifest of crates.io crate bufs 0.0.0 on toolchain 1.55.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate bufs 0.0.0
[INFO] finished tweaking crates.io crate bufs 0.0.0
[INFO] tweaked toml for crates.io crate bufs 0.0.0 written to /workspace/builds/worker-50/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-50/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-50/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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 97a3fddefd309bdfba8d5a4794eadde7059982810d82adf0c382ee2638efeb68
[INFO] running `Command { std: "docker" "start" "-a" "97a3fddefd309bdfba8d5a4794eadde7059982810d82adf0c382ee2638efeb68", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "97a3fddefd309bdfba8d5a4794eadde7059982810d82adf0c382ee2638efeb68", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "97a3fddefd309bdfba8d5a4794eadde7059982810d82adf0c382ee2638efeb68", kill_on_drop: false }`
[INFO] [stdout] 97a3fddefd309bdfba8d5a4794eadde7059982810d82adf0c382ee2638efeb68
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-50/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-50/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=warn" "-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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] ebfc543daf44a4fe505d4298ad8a0531cac4eae1efc124365ed8b42fcf92c5b3
[INFO] running `Command { std: "docker" "start" "-a" "ebfc543daf44a4fe505d4298ad8a0531cac4eae1efc124365ed8b42fcf92c5b3", kill_on_drop: false }`
[INFO] [stderr]    Compiling bufs v0.0.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.64s
[INFO] running `Command { std: "docker" "inspect" "ebfc543daf44a4fe505d4298ad8a0531cac4eae1efc124365ed8b42fcf92c5b3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ebfc543daf44a4fe505d4298ad8a0531cac4eae1efc124365ed8b42fcf92c5b3", kill_on_drop: false }`
[INFO] [stdout] ebfc543daf44a4fe505d4298ad8a0531cac4eae1efc124365ed8b42fcf92c5b3
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-50/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-50/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=warn" "-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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 5a766756e16a2caba1ffe776ec698bd817ec877eb1e1d8beec672413b13d061f
[INFO] running `Command { std: "docker" "start" "-a" "5a766756e16a2caba1ffe776ec698bd817ec877eb1e1d8beec672413b13d061f", kill_on_drop: false }`
[INFO] [stderr]    Compiling bufs v0.0.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.58s
[INFO] running `Command { std: "docker" "inspect" "5a766756e16a2caba1ffe776ec698bd817ec877eb1e1d8beec672413b13d061f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5a766756e16a2caba1ffe776ec698bd817ec877eb1e1d8beec672413b13d061f", kill_on_drop: false }`
[INFO] [stdout] 5a766756e16a2caba1ffe776ec698bd817ec877eb1e1d8beec672413b13d061f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-50/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-50/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=warn" "-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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] d54fd11b14798ac812dadd32357276ec66ec78ed26577332bcf13ed798c57fe0
[INFO] running `Command { std: "docker" "start" "-a" "d54fd11b14798ac812dadd32357276ec66ec78ed26577332bcf13ed798c57fe0", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/bufs-27589b7a07c8ff9c)
[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 bufs
[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" "d54fd11b14798ac812dadd32357276ec66ec78ed26577332bcf13ed798c57fe0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d54fd11b14798ac812dadd32357276ec66ec78ed26577332bcf13ed798c57fe0", kill_on_drop: false }`
[INFO] [stdout] d54fd11b14798ac812dadd32357276ec66ec78ed26577332bcf13ed798c57fe0