[INFO] fetching crate modbus-core 0.0.0...
[INFO] testing modbus-core-0.0.0 against master#a77da2d454e6caa227a85b16410b95f93495e7e0 for pr-91031
[INFO] extracting crate modbus-core 0.0.0 into /workspace/builds/worker-31/source
[INFO] validating manifest of crates.io crate modbus-core 0.0.0 on toolchain a77da2d454e6caa227a85b16410b95f93495e7e0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate modbus-core 0.0.0
[INFO] finished tweaking crates.io crate modbus-core 0.0.0
[INFO] tweaked toml for crates.io crate modbus-core 0.0.0 written to /workspace/builds/worker-31/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "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-31/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-31/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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] f7ad0ed1383099b52f936186f0553fda161a865b87db45bd1d402de4c5659140
[INFO] running `Command { std: "docker" "start" "-a" "f7ad0ed1383099b52f936186f0553fda161a865b87db45bd1d402de4c5659140", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "f7ad0ed1383099b52f936186f0553fda161a865b87db45bd1d402de4c5659140", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f7ad0ed1383099b52f936186f0553fda161a865b87db45bd1d402de4c5659140", kill_on_drop: false }`
[INFO] [stdout] f7ad0ed1383099b52f936186f0553fda161a865b87db45bd1d402de4c5659140
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-31/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-31/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" "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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 9b6f9196c4fc1b716aed3803f54baa17b9dc2d483855772c4268711da4a4c0a8
[INFO] running `Command { std: "docker" "start" "-a" "9b6f9196c4fc1b716aed3803f54baa17b9dc2d483855772c4268711da4a4c0a8", kill_on_drop: false }`
[INFO] [stderr]    Compiling modbus-core v0.0.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.38s
[INFO] running `Command { std: "docker" "inspect" "9b6f9196c4fc1b716aed3803f54baa17b9dc2d483855772c4268711da4a4c0a8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9b6f9196c4fc1b716aed3803f54baa17b9dc2d483855772c4268711da4a4c0a8", kill_on_drop: false }`
[INFO] [stdout] 9b6f9196c4fc1b716aed3803f54baa17b9dc2d483855772c4268711da4a4c0a8
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-31/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-31/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" "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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 20f5b23e379170080c3d35fcf4a7258e692dbf3024c7ee80d8288fbe7f426fe9
[INFO] running `Command { std: "docker" "start" "-a" "20f5b23e379170080c3d35fcf4a7258e692dbf3024c7ee80d8288fbe7f426fe9", kill_on_drop: false }`
[INFO] [stderr]    Compiling modbus-core v0.0.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.31s
[INFO] running `Command { std: "docker" "inspect" "20f5b23e379170080c3d35fcf4a7258e692dbf3024c7ee80d8288fbe7f426fe9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "20f5b23e379170080c3d35fcf4a7258e692dbf3024c7ee80d8288fbe7f426fe9", kill_on_drop: false }`
[INFO] [stdout] 20f5b23e379170080c3d35fcf4a7258e692dbf3024c7ee80d8288fbe7f426fe9
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-31/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-31/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" "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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 592864a8fd32cf8451b9dc7b2d9a5ad1aea60b10b3dce3f9e3154ae2737c1480
[INFO] running `Command { std: "docker" "start" "-a" "592864a8fd32cf8451b9dc7b2d9a5ad1aea60b10b3dce3f9e3154ae2737c1480", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.29s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/modbus_core-109de3aeb073f294)
[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] [stderr]    Doc-tests modbus-core
[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" "592864a8fd32cf8451b9dc7b2d9a5ad1aea60b10b3dce3f9e3154ae2737c1480", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "592864a8fd32cf8451b9dc7b2d9a5ad1aea60b10b3dce3f9e3154ae2737c1480", kill_on_drop: false }`
[INFO] [stdout] 592864a8fd32cf8451b9dc7b2d9a5ad1aea60b10b3dce3f9e3154ae2737c1480