[INFO] fetching crate rmodbus 0.5.3...
[INFO] checking rmodbus-0.5.3 against master#195ad4830e11a544391abe296b146450dea8411b for pr-82781
[INFO] extracting crate rmodbus 0.5.3 into /workspace/builds/worker-0/source
[INFO] validating manifest of crates.io crate rmodbus 0.5.3 on toolchain 195ad4830e11a544391abe296b146450dea8411b
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+195ad4830e11a544391abe296b146450dea8411b" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate rmodbus 0.5.3
[INFO] removed 0 missing examples
[INFO] finished tweaking crates.io crate rmodbus 0.5.3
[INFO] tweaked toml for crates.io crate rmodbus 0.5.3 written to /workspace/builds/worker-0/source/Cargo.toml
[INFO] crate crates.io crate rmodbus 0.5.3 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+195ad4830e11a544391abe296b146450dea8411b" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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" "rustops/crates-build-env@sha256:f2f6bcd4b43ebee4e173f653a26493129bdb64017c85f916b780ca7fbdbaa79d" "/opt/rustwide/cargo-home/bin/cargo" "+195ad4830e11a544391abe296b146450dea8411b" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] efb518568681a0ca62d46f273e21303fb8d1266bc77a9ac004b397ecff3623ce
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "efb518568681a0ca62d46f273e21303fb8d1266bc77a9ac004b397ecff3623ce", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "efb518568681a0ca62d46f273e21303fb8d1266bc77a9ac004b397ecff3623ce", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "efb518568681a0ca62d46f273e21303fb8d1266bc77a9ac004b397ecff3623ce", kill_on_drop: false }`
[INFO] [stdout] efb518568681a0ca62d46f273e21303fb8d1266bc77a9ac004b397ecff3623ce
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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" "rustops/crates-build-env@sha256:f2f6bcd4b43ebee4e173f653a26493129bdb64017c85f916b780ca7fbdbaa79d" "/opt/rustwide/cargo-home/bin/cargo" "+195ad4830e11a544391abe296b146450dea8411b" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 85deeea52454897e6a4ad8de6ffd4e1d6e824985fb9e8c1c007f9e4d03d74bd9
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "85deeea52454897e6a4ad8de6ffd4e1d6e824985fb9e8c1c007f9e4d03d74bd9", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.77
[INFO] [stderr]    Compiling getrandom v0.1.15
[INFO] [stderr]     Checking cfg-if v0.1.10
[INFO] [stderr]     Checking ppv-lite86 v0.2.9
[INFO] [stderr]     Checking fixedvec v0.2.4
[INFO] [stderr]     Checking ieee754 v0.2.6
[INFO] [stderr]     Checking spin v0.5.2
[INFO] [stderr]     Checking lazy_static v1.4.0
[INFO] [stderr]     Checking rmodbus v0.5.3 (/opt/rustwide/workdir)
[INFO] [stderr]     Checking ioctl-rs v0.1.6
[INFO] [stderr]     Checking serial-core v0.4.0
[INFO] [stderr]     Checking termios v0.2.2
[INFO] [stderr]     Checking serial-unix v0.4.0
[INFO] [stderr]     Checking rand_core v0.5.1
[INFO] [stderr]     Checking serial v0.4.0
[INFO] [stderr]     Checking rand_chacha v0.2.2
[INFO] [stderr]     Checking rand v0.7.3
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 8.07s
[INFO] running `Command { std: "docker" "inspect" "85deeea52454897e6a4ad8de6ffd4e1d6e824985fb9e8c1c007f9e4d03d74bd9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "85deeea52454897e6a4ad8de6ffd4e1d6e824985fb9e8c1c007f9e4d03d74bd9", kill_on_drop: false }`
[INFO] [stdout] 85deeea52454897e6a4ad8de6ffd4e1d6e824985fb9e8c1c007f9e4d03d74bd9