[INFO] fetching crate modbus 1.0.3...
[INFO] building modbus-1.0.3 against beta-2021-08-01 for beta-1.55-1
[INFO] extracting crate modbus 1.0.3 into /workspace/builds/worker-4/source
[INFO] validating manifest of crates.io crate modbus 1.0.3 on toolchain beta-2021-08-01
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-08-01" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate modbus 1.0.3
[INFO] finished tweaking crates.io crate modbus 1.0.3
[INFO] tweaked toml for crates.io crate modbus 1.0.3 written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] crate crates.io crate modbus 1.0.3 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-08-01" "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] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded modbus-test-server v0.0.4
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "+beta-2021-08-01" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 9fa87a858a17ae6d3a2782b0e445a0c8bce532fe4d7165f845ecfa77f7b3eac1
[INFO] running `Command { std: "docker" "start" "-a" "9fa87a858a17ae6d3a2782b0e445a0c8bce532fe4d7165f845ecfa77f7b3eac1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "9fa87a858a17ae6d3a2782b0e445a0c8bce532fe4d7165f845ecfa77f7b3eac1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9fa87a858a17ae6d3a2782b0e445a0c8bce532fe4d7165f845ecfa77f7b3eac1", kill_on_drop: false }`
[INFO] [stdout] 9fa87a858a17ae6d3a2782b0e445a0c8bce532fe4d7165f845ecfa77f7b3eac1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-08-01" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 397ce70336a96aa96d1e42a0709188c0c823dbdc7a8562941946898bd4894d8d
[INFO] running `Command { std: "docker" "start" "-a" "397ce70336a96aa96d1e42a0709188c0c823dbdc7a8562941946898bd4894d8d", kill_on_drop: false }`
[INFO] [stderr]    Compiling autocfg v0.1.4
[INFO] [stderr]    Compiling num-bigint v0.2.2
[INFO] [stderr]    Compiling num-traits v0.2.8
[INFO] [stderr]    Compiling num-integer v0.1.41
[INFO] [stderr]    Compiling num-complex v0.2.3
[INFO] [stderr]    Compiling num-rational v0.2.2
[INFO] [stderr]    Compiling num-iter v0.1.39
[INFO] [stderr]    Compiling num-traits v0.1.43
[INFO] [stderr]    Compiling enum_primitive v0.1.1
[INFO] [stderr]    Compiling num v0.2.0
[INFO] [stderr]    Compiling modbus v1.0.3 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 5.72s
[INFO] running `Command { std: "docker" "inspect" "397ce70336a96aa96d1e42a0709188c0c823dbdc7a8562941946898bd4894d8d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "397ce70336a96aa96d1e42a0709188c0c823dbdc7a8562941946898bd4894d8d", kill_on_drop: false }`
[INFO] [stdout] 397ce70336a96aa96d1e42a0709188c0c823dbdc7a8562941946898bd4894d8d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-08-01" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 8a7f11efa662375ae342f2a18ca273d56f5622576860a234b5b6c69a797e5837
[INFO] running `Command { std: "docker" "start" "-a" "8a7f11efa662375ae342f2a18ca273d56f5622576860a234b5b6c69a797e5837", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.58
[INFO] [stderr]    Compiling bitflags v1.1.0
[INFO] [stderr]    Compiling modbus-test-server v0.0.4
[INFO] [stderr]    Compiling lazy_static v1.3.0
[INFO] [stderr]    Compiling atty v0.2.11
[INFO] [stderr]    Compiling clap v2.33.0
[INFO] [stderr]    Compiling modbus v1.0.3 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 10.10s
[INFO] running `Command { std: "docker" "inspect" "8a7f11efa662375ae342f2a18ca273d56f5622576860a234b5b6c69a797e5837", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8a7f11efa662375ae342f2a18ca273d56f5622576860a234b5b6c69a797e5837", kill_on_drop: false }`
[INFO] [stdout] 8a7f11efa662375ae342f2a18ca273d56f5622576860a234b5b6c69a797e5837
