[INFO] fetching crate rmodbus 0.12.1...
[INFO] building rmodbus-0.12.1 against master#c7f6aa2869acdbf014d094c6e427e554e160b6db for pr-146237-2
[INFO] extracting crate rmodbus 0.12.1 into /workspace/builds/worker-6-tc1/source
[INFO] removed /workspace/builds/worker-6-tc1/source/rust-toolchain.toml
[INFO] started tweaking crates.io crate rmodbus 0.12.1
[INFO] removed 0 missing examples
[INFO] finished tweaking crates.io crate rmodbus 0.12.1
[INFO] tweaked toml for crates.io crate rmodbus 0.12.1 written to /workspace/builds/worker-6-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate rmodbus 0.12.1 on toolchain c7f6aa2869acdbf014d094c6e427e554e160b6db
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c7f6aa2869acdbf014d094c6e427e554e160b6db" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate rmodbus 0.12.1 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c7f6aa2869acdbf014d094c6e427e554e160b6db" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded serde_derive v1.0.226
[INFO] [stderr]   Downloaded ioctl-rs v0.1.6
[INFO] [stderr]   Downloaded serial v0.4.0
[INFO] [stderr]   Downloaded serde v1.0.226
[INFO] [stderr]   Downloaded virtue v0.0.8
[INFO] [stderr]   Downloaded bincode_derive v2.0.0-rc.2
[INFO] [stderr]   Downloaded ieee754 v0.2.6
[INFO] [stderr]   Downloaded bincode v2.0.0-rc.2
[INFO] [stderr]   Downloaded serde_core v1.0.226
[INFO] [stderr]   Downloaded fixedvec v0.2.4
[INFO] [stderr]   Downloaded heapless v0.9.1
[INFO] [stderr]   Downloaded termios v0.2.2
[INFO] [stderr]   Downloaded crc16 v0.4.0
[INFO] [stderr]   Downloaded serde_arrays v0.1.0
[INFO] [stderr]   Downloaded serial-unix v0.4.0
[INFO] [stderr]   Downloaded serial-core v0.4.0
[INFO] [stderr]   Downloaded serial-windows v0.4.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+c7f6aa2869acdbf014d094c6e427e554e160b6db" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] b212b7d54ca086e1b124faca505b3837d4099fbb60e65748ee38c8e8c2160ff1
[INFO] running `Command { std: "docker" "start" "-a" "b212b7d54ca086e1b124faca505b3837d4099fbb60e65748ee38c8e8c2160ff1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "b212b7d54ca086e1b124faca505b3837d4099fbb60e65748ee38c8e8c2160ff1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b212b7d54ca086e1b124faca505b3837d4099fbb60e65748ee38c8e8c2160ff1", kill_on_drop: false }`
[INFO] [stdout] b212b7d54ca086e1b124faca505b3837d4099fbb60e65748ee38c8e8c2160ff1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/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" "RUSTDOCFLAGS=--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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+c7f6aa2869acdbf014d094c6e427e554e160b6db" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] aac01f20f3cd51c7a97a3f33c07d6cab1decaf7f34b6c29abccf700d1ac2058c
[INFO] running `Command { std: "docker" "start" "-a" "aac01f20f3cd51c7a97a3f33c07d6cab1decaf7f34b6c29abccf700d1ac2058c", kill_on_drop: false }`
[INFO] [stderr]    Compiling ieee754 v0.2.6
[INFO] [stderr]    Compiling rmodbus v0.12.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.87s
[INFO] running `Command { std: "docker" "inspect" "aac01f20f3cd51c7a97a3f33c07d6cab1decaf7f34b6c29abccf700d1ac2058c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "aac01f20f3cd51c7a97a3f33c07d6cab1decaf7f34b6c29abccf700d1ac2058c", kill_on_drop: false }`
[INFO] [stdout] aac01f20f3cd51c7a97a3f33c07d6cab1decaf7f34b6c29abccf700d1ac2058c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/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" "RUSTDOCFLAGS=--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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+c7f6aa2869acdbf014d094c6e427e554e160b6db" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 65417d70739d5cb73768b2dcbfb17954eece3282e293eef9ae174275827654a4
[INFO] running `Command { std: "docker" "start" "-a" "65417d70739d5cb73768b2dcbfb17954eece3282e293eef9ae174275827654a4", kill_on_drop: false }`
[INFO] [stderr]    Compiling virtue v0.0.8
[INFO] [stderr]    Compiling crc16 v0.4.0
[INFO] [stderr]    Compiling fixedvec v0.2.4
[INFO] [stderr]    Compiling termios v0.2.2
[INFO] [stderr]    Compiling serial-core v0.4.0
[INFO] [stderr]    Compiling ioctl-rs v0.1.6
[INFO] [stderr]    Compiling serial-unix v0.4.0
[INFO] [stderr]    Compiling serial v0.4.0
[INFO] [stderr]    Compiling bincode_derive v2.0.0-rc.2
[INFO] [stderr]    Compiling bincode v2.0.0-rc.2
[INFO] [stderr]    Compiling rmodbus v0.12.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 4.48s
[INFO] running `Command { std: "docker" "inspect" "65417d70739d5cb73768b2dcbfb17954eece3282e293eef9ae174275827654a4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "65417d70739d5cb73768b2dcbfb17954eece3282e293eef9ae174275827654a4", kill_on_drop: false }`
[INFO] [stdout] 65417d70739d5cb73768b2dcbfb17954eece3282e293eef9ae174275827654a4