[INFO] fetching crate shred-derive 0.6.3...
[INFO] testing shred-derive-0.6.3 against 1.55.0 for beta-1.56-1
[INFO] extracting crate shred-derive 0.6.3 into /workspace/builds/worker-1/source
[INFO] validating manifest of crates.io crate shred-derive 0.6.3 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 shred-derive 0.6.3
[INFO] finished tweaking crates.io crate shred-derive 0.6.3
[INFO] tweaked toml for crates.io crate shred-derive 0.6.3 written to /workspace/builds/worker-1/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-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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] 30c45a21046f4ff546e6b283d748791b153ee25d37659f8c3f110143b368e4ae
[INFO] running `Command { std: "docker" "start" "-a" "30c45a21046f4ff546e6b283d748791b153ee25d37659f8c3f110143b368e4ae", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "30c45a21046f4ff546e6b283d748791b153ee25d37659f8c3f110143b368e4ae", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "30c45a21046f4ff546e6b283d748791b153ee25d37659f8c3f110143b368e4ae", kill_on_drop: false }`
[INFO] [stdout] 30c45a21046f4ff546e6b283d748791b153ee25d37659f8c3f110143b368e4ae
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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] 2665c4c16bf457dc8e0c4abdcc6c7851ea28db6c13b5bb8a7c213566e14cdeb1
[INFO] running `Command { std: "docker" "start" "-a" "2665c4c16bf457dc8e0c4abdcc6c7851ea28db6c13b5bb8a7c213566e14cdeb1", kill_on_drop: false }`
[INFO] [stderr]    Compiling shred-derive v0.6.3 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.90s
[INFO] running `Command { std: "docker" "inspect" "2665c4c16bf457dc8e0c4abdcc6c7851ea28db6c13b5bb8a7c213566e14cdeb1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2665c4c16bf457dc8e0c4abdcc6c7851ea28db6c13b5bb8a7c213566e14cdeb1", kill_on_drop: false }`
[INFO] [stdout] 2665c4c16bf457dc8e0c4abdcc6c7851ea28db6c13b5bb8a7c213566e14cdeb1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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] cd46499c009255f53de20f48936c419e1aadedd1e3d889ea295292f66b5a983d
[INFO] running `Command { std: "docker" "start" "-a" "cd46499c009255f53de20f48936c419e1aadedd1e3d889ea295292f66b5a983d", kill_on_drop: false }`
[INFO] [stderr]    Compiling shred-derive v0.6.3 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.57s
[INFO] running `Command { std: "docker" "inspect" "cd46499c009255f53de20f48936c419e1aadedd1e3d889ea295292f66b5a983d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "cd46499c009255f53de20f48936c419e1aadedd1e3d889ea295292f66b5a983d", kill_on_drop: false }`
[INFO] [stdout] cd46499c009255f53de20f48936c419e1aadedd1e3d889ea295292f66b5a983d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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] 584ffc59309195f5d6b9f04bf83991f298fa5f15fe0003bb36ce9c7ba14cb13c
[INFO] running `Command { std: "docker" "start" "-a" "584ffc59309195f5d6b9f04bf83991f298fa5f15fe0003bb36ce9c7ba14cb13c", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/shred_derive-5a0ca52d169eaa38)
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests shred-derive
[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] [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" "584ffc59309195f5d6b9f04bf83991f298fa5f15fe0003bb36ce9c7ba14cb13c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "584ffc59309195f5d6b9f04bf83991f298fa5f15fe0003bb36ce9c7ba14cb13c", kill_on_drop: false }`
[INFO] [stdout] 584ffc59309195f5d6b9f04bf83991f298fa5f15fe0003bb36ce9c7ba14cb13c