[INFO] cloning repository https://github.com/fabudor/modbusserver
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/fabudor/modbusserver" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ffabudor%2Fmodbusserver", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ffabudor%2Fmodbusserver'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] e2e36151cb79cb1392290a4f9a1e57d1d507064e
[INFO] checking fabudor/modbusserver against master#0599f3403366d9c57f0625e6de3af214b5042a90 for pr-87710
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ffabudor%2Fmodbusserver" "/workspace/builds/worker-78/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-78/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/fabudor/modbusserver on toolchain 0599f3403366d9c57f0625e6de3af214b5042a90
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+0599f3403366d9c57f0625e6de3af214b5042a90" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/fabudor/modbusserver
[INFO] finished tweaking git repo https://github.com/fabudor/modbusserver
[INFO] tweaked toml for git repo https://github.com/fabudor/modbusserver written to /workspace/builds/worker-78/source/Cargo.toml
[INFO] crate git repo https://github.com/fabudor/modbusserver already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+0599f3403366d9c57f0625e6de3af214b5042a90" "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-78/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-78/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+0599f3403366d9c57f0625e6de3af214b5042a90" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 6719717ad55dd337e8ff1a14be63c33d87a77a1a25673e0a70e1933c5c34221c
[INFO] running `Command { std: "docker" "start" "-a" "6719717ad55dd337e8ff1a14be63c33d87a77a1a25673e0a70e1933c5c34221c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "6719717ad55dd337e8ff1a14be63c33d87a77a1a25673e0a70e1933c5c34221c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6719717ad55dd337e8ff1a14be63c33d87a77a1a25673e0a70e1933c5c34221c", kill_on_drop: false }`
[INFO] [stdout] 6719717ad55dd337e8ff1a14be63c33d87a77a1a25673e0a70e1933c5c34221c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-78/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-78/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+0599f3403366d9c57f0625e6de3af214b5042a90" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] cdfb1f20d64710b2bf16bd3a91380b7be8604d5801ddb58b8aae6333106c2c8c
[INFO] running `Command { std: "docker" "start" "-a" "cdfb1f20d64710b2bf16bd3a91380b7be8604d5801ddb58b8aae6333106c2c8c", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling syn v1.0.55
[INFO] [stderr]    Compiling libc v0.2.81
[INFO] [stderr]    Compiling log v0.4.11
[INFO] [stderr]     Checking futures-core v0.3.8
[INFO] [stderr]     Checking futures-sink v0.3.8
[INFO] [stderr]    Compiling proc-macro-nested v0.1.6
[INFO] [stderr]     Checking once_cell v1.5.2
[INFO] [stderr]     Checking futures-io v0.3.8
[INFO] [stderr]     Checking bytes v0.5.6
[INFO] [stderr]    Compiling byteorder v1.3.4
[INFO] [stderr]     Checking pin-project-lite v0.1.11
[INFO] [stderr]     Checking smallvec v1.5.1
[INFO] [stderr]     Checking pin-project-lite v0.2.0
[INFO] [stderr]    Compiling tokio v1.0.0
[INFO] [stderr]     Checking futures-channel v0.3.8
[INFO] [stderr]     Checking futures-task v0.3.8
[INFO] [stderr]     Checking net2 v0.2.37
[INFO] [stderr]     Checking iovec v0.1.4
[INFO] [stderr]     Checking mio v0.6.23
[INFO] [stderr]     Checking mio-uds v0.6.8
[INFO] [stderr]     Checking tokio v0.2.24
[INFO] [stderr]     Checking tokio-util v0.2.0
[INFO] [stderr]    Compiling pin-project-internal v1.0.2
[INFO] [stderr]    Compiling futures-macro v0.3.8
[INFO] [stderr]     Checking pin-project v1.0.2
[INFO] [stderr]     Checking futures-util v0.3.8
[INFO] [stderr]     Checking futures-executor v0.3.8
[INFO] [stderr]     Checking futures v0.3.8
[INFO] [stderr]     Checking tokio-modbus v0.4.0
[INFO] [stderr]     Checking modbusserver v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 19.46s
[INFO] running `Command { std: "docker" "inspect" "cdfb1f20d64710b2bf16bd3a91380b7be8604d5801ddb58b8aae6333106c2c8c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "cdfb1f20d64710b2bf16bd3a91380b7be8604d5801ddb58b8aae6333106c2c8c", kill_on_drop: false }`
[INFO] [stdout] cdfb1f20d64710b2bf16bd3a91380b7be8604d5801ddb58b8aae6333106c2c8c