[INFO] fetching crate protobuf 2.25.1...
[INFO] testing protobuf-2.25.1 against 1.55.0 for beta-1.56-1
[INFO] extracting crate protobuf 2.25.1 into /workspace/builds/worker-6/source
[INFO] validating manifest of crates.io crate protobuf 2.25.1 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 protobuf 2.25.1
[INFO] finished tweaking crates.io crate protobuf 2.25.1
[INFO] tweaked toml for crates.io crate protobuf 2.25.1 written to /workspace/builds/worker-6/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] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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] e3d2906bb23b844984e7c62ea42f98e5e1ec6931d035e54dc3451b8d76ca1490
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "e3d2906bb23b844984e7c62ea42f98e5e1ec6931d035e54dc3451b8d76ca1490", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "e3d2906bb23b844984e7c62ea42f98e5e1ec6931d035e54dc3451b8d76ca1490", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e3d2906bb23b844984e7c62ea42f98e5e1ec6931d035e54dc3451b8d76ca1490", kill_on_drop: false }`
[INFO] [stdout] e3d2906bb23b844984e7c62ea42f98e5e1ec6931d035e54dc3451b8d76ca1490
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 0063508fda28106d310126d054e209314627bdbc1fabaf7e319a14bc8b967278
[INFO] running `Command { std: "docker" "start" "-a" "0063508fda28106d310126d054e209314627bdbc1fabaf7e319a14bc8b967278", kill_on_drop: false }`
[INFO] [stderr]    Compiling protobuf v2.25.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 11.79s
[INFO] running `Command { std: "docker" "inspect" "0063508fda28106d310126d054e209314627bdbc1fabaf7e319a14bc8b967278", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0063508fda28106d310126d054e209314627bdbc1fabaf7e319a14bc8b967278", kill_on_drop: false }`
[INFO] [stdout] 0063508fda28106d310126d054e209314627bdbc1fabaf7e319a14bc8b967278
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 35929cce198a78007175019e2f83bd07e570bda7db59454897d2253fa4293950
[INFO] running `Command { std: "docker" "start" "-a" "35929cce198a78007175019e2f83bd07e570bda7db59454897d2253fa4293950", kill_on_drop: false }`
[INFO] [stderr]    Compiling protobuf v2.25.1 (/opt/rustwide/workdir)
[INFO] [stdout] error: couldn't read src/../../protobuf-test-common/src/hex.rs: No such file or directory (os error 2)
[INFO] [stdout]   --> src/lib.rs:76:1
[INFO] [stdout]    |
[INFO] [stdout] 76 | mod hex;
[INFO] [stdout]    | ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `protobuf` due to 2 previous errors
[INFO] running `Command { std: "docker" "inspect" "35929cce198a78007175019e2f83bd07e570bda7db59454897d2253fa4293950", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "35929cce198a78007175019e2f83bd07e570bda7db59454897d2253fa4293950", kill_on_drop: false }`
[INFO] [stdout] 35929cce198a78007175019e2f83bd07e570bda7db59454897d2253fa4293950