[INFO] updating cached repository https://github.com/flosse/tokio-modbus-issue-3
[INFO] running `"git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "-c" "remote.origin.fetch=refs/heads/*:refs/heads/*" "fetch" "origin" "--force" "--prune"`
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] db29459a11107d0461e24a965867e85383be2f9c
[INFO] checking flosse/tokio-modbus-issue-3 against try#ba14a92a10441c4b839ce71e6ef5f7a48bbff18f for prs-64470-and-65389
[INFO] running `"git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fflosse%2Ftokio-modbus-issue-3" "/workspace/builds/worker-6/source"`
[INFO] [stderr] Cloning into '/workspace/builds/worker-6/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/flosse/tokio-modbus-issue-3 on toolchain ba14a92a10441c4b839ce71e6ef5f7a48bbff18f
[INFO] running `"/workspace/cargo-home/bin/cargo" "+ba14a92a10441c4b839ce71e6ef5f7a48bbff18f" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking git repo https://github.com/flosse/tokio-modbus-issue-3
[INFO] finished tweaking git repo https://github.com/flosse/tokio-modbus-issue-3
[INFO] tweaked toml for git repo https://github.com/flosse/tokio-modbus-issue-3 written to /workspace/builds/worker-6/source/Cargo.toml
[INFO] crate git repo https://github.com/flosse/tokio-modbus-issue-3 already has a lockfile, it will not be regenerated
[INFO] running `"/workspace/cargo-home/bin/cargo" "+ba14a92a10441c4b839ce71e6ef5f7a48bbff18f" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+ba14a92a10441c4b839ce71e6ef5f7a48bbff18f" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 01c793bfbaf9639be32b5d6d72cfaa9c77eca171a1e9eeb8edb944ea6c8c4bbf
[INFO] running `"docker" "start" "-a" "01c793bfbaf9639be32b5d6d72cfaa9c77eca171a1e9eeb8edb944ea6c8c4bbf"`
[INFO] [stderr]     Checking tokio-service v0.1.0
[INFO] [stderr]    Compiling libudev-sys v0.1.4
[INFO] [stderr]     Checking smallvec v0.6.7
[INFO] [stderr]     Checking tokio-io v0.1.10
[INFO] [stderr]     Checking tokio-threadpool v0.1.9
[INFO] [stderr]     Checking parking_lot_core v0.3.1
[INFO] [stderr]     Checking tokio-codec v0.1.1
[INFO] [stderr]     Checking libudev v0.2.0
[INFO] [stderr]     Checking parking_lot v0.6.4
[INFO] [stderr]     Checking tokio-fs v0.1.4
[INFO] [stderr]     Checking serialport v3.1.0
[INFO] [stderr]     Checking tokio-reactor v0.1.7
[INFO] [stderr]     Checking mio-serial v3.1.0
[INFO] [stderr]     Checking tokio-uds v0.2.4
[INFO] [stderr]     Checking tokio-tcp v0.1.2
[INFO] [stderr]     Checking tokio-udp v0.1.3
[INFO] [stderr]     Checking tokio-serial v3.1.0
[INFO] [stderr]     Checking tokio v0.1.13
[INFO] [stderr]     Checking tokio-core v0.1.17
[INFO] [stderr]     Checking tokio-proto v0.1.1
[INFO] [stderr]     Checking tokio-modbus v0.2.2 (https://github.com/slowtec/tokio-modbus#e4ff598b)
[INFO] [stderr]     Checking tokio-modbus-issue-3 v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 32.11s
[INFO] running `"docker" "inspect" "01c793bfbaf9639be32b5d6d72cfaa9c77eca171a1e9eeb8edb944ea6c8c4bbf"`
[INFO] running `"docker" "rm" "-f" "01c793bfbaf9639be32b5d6d72cfaa9c77eca171a1e9eeb8edb944ea6c8c4bbf"`
[INFO] [stdout] 01c793bfbaf9639be32b5d6d72cfaa9c77eca171a1e9eeb8edb944ea6c8c4bbf