[INFO] fetching crate mdio 0.1.1...
[INFO] testing mdio-0.1.1 against 1.55.0 for beta-1.56-1
[INFO] extracting crate mdio 0.1.1 into /workspace/builds/worker-36/source
[INFO] validating manifest of crates.io crate mdio 0.1.1 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 mdio 0.1.1
[INFO] finished tweaking crates.io crate mdio 0.1.1
[INFO] tweaked toml for crates.io crate mdio 0.1.1 written to /workspace/builds/worker-36/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] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-36/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-36/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] 6727d67f3abafc504b3071c5331fe7f8fa9c09f00c822a4c0ec1c7124c45b1d0
[INFO] running `Command { std: "docker" "start" "-a" "6727d67f3abafc504b3071c5331fe7f8fa9c09f00c822a4c0ec1c7124c45b1d0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "6727d67f3abafc504b3071c5331fe7f8fa9c09f00c822a4c0ec1c7124c45b1d0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6727d67f3abafc504b3071c5331fe7f8fa9c09f00c822a4c0ec1c7124c45b1d0", kill_on_drop: false }`
[INFO] [stdout] 6727d67f3abafc504b3071c5331fe7f8fa9c09f00c822a4c0ec1c7124c45b1d0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-36/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-36/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] c38cb9361f95e52cb49284cacace5efa21cde35ed91f4651f5b73bcbc63d6a33
[INFO] running `Command { std: "docker" "start" "-a" "c38cb9361f95e52cb49284cacace5efa21cde35ed91f4651f5b73bcbc63d6a33", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling mdio v0.1.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.66s
[INFO] running `Command { std: "docker" "inspect" "c38cb9361f95e52cb49284cacace5efa21cde35ed91f4651f5b73bcbc63d6a33", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c38cb9361f95e52cb49284cacace5efa21cde35ed91f4651f5b73bcbc63d6a33", kill_on_drop: false }`
[INFO] [stdout] c38cb9361f95e52cb49284cacace5efa21cde35ed91f4651f5b73bcbc63d6a33
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-36/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-36/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] 446f18d81ba64b2c89b4b65e711306d366fa8e01bec89d3f2bed6f68f9119f1b
[INFO] running `Command { std: "docker" "start" "-a" "446f18d81ba64b2c89b4b65e711306d366fa8e01bec89d3f2bed6f68f9119f1b", kill_on_drop: false }`
[INFO] [stderr]    Compiling mdio v0.1.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.69s
[INFO] running `Command { std: "docker" "inspect" "446f18d81ba64b2c89b4b65e711306d366fa8e01bec89d3f2bed6f68f9119f1b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "446f18d81ba64b2c89b4b65e711306d366fa8e01bec89d3f2bed6f68f9119f1b", kill_on_drop: false }`
[INFO] [stdout] 446f18d81ba64b2c89b4b65e711306d366fa8e01bec89d3f2bed6f68f9119f1b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-36/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-36/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] fcb666e39916ee4d74cc9adfbc776957103be00fd97d842ff461e7f9d419d0f4
[INFO] running `Command { std: "docker" "start" "-a" "fcb666e39916ee4d74cc9adfbc776957103be00fd97d842ff461e7f9d419d0f4", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stdout] 
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/mdio-018ca38431073f74)
[INFO] [stdout] running 0 tests
[INFO] [stderr]    Doc-tests mdio
[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] [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" "fcb666e39916ee4d74cc9adfbc776957103be00fd97d842ff461e7f9d419d0f4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "fcb666e39916ee4d74cc9adfbc776957103be00fd97d842ff461e7f9d419d0f4", kill_on_drop: false }`
[INFO] [stdout] fcb666e39916ee4d74cc9adfbc776957103be00fd97d842ff461e7f9d419d0f4