[INFO] cloning repository https://github.com/DBTaylor/modbus-tcp-leak
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/DBTaylor/modbus-tcp-leak" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FDBTaylor%2Fmodbus-tcp-leak", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FDBTaylor%2Fmodbus-tcp-leak'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] e768d89893ab2785112b3bdd0284cee01a0aa71e
[INFO] checking DBTaylor/modbus-tcp-leak against try#3e59a8c2f14152ccc92a6c079f592dc2dc6fa93f for pr-87248
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FDBTaylor%2Fmodbus-tcp-leak" "/workspace/builds/worker-1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/DBTaylor/modbus-tcp-leak on toolchain 3e59a8c2f14152ccc92a6c079f592dc2dc6fa93f
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+3e59a8c2f14152ccc92a6c079f592dc2dc6fa93f" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/DBTaylor/modbus-tcp-leak
[INFO] finished tweaking git repo https://github.com/DBTaylor/modbus-tcp-leak
[INFO] tweaked toml for git repo https://github.com/DBTaylor/modbus-tcp-leak written to /workspace/builds/worker-1/source/Cargo.toml
[INFO] crate git repo https://github.com/DBTaylor/modbus-tcp-leak already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+3e59a8c2f14152ccc92a6c079f592dc2dc6fa93f" "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 twoway v0.1.8
[INFO] [stderr]   Downloaded multipart v0.16.1
[INFO] [stderr]   Downloaded url v2.1.0
[INFO] [stderr]   Downloaded headers-core v0.1.1
[INFO] [stderr]   Downloaded mime_guess v1.8.7
[INFO] [stderr]   Downloaded serialport v3.3.0
[INFO] [stderr]   Downloaded mio-serial v3.3.0
[INFO] [stderr]   Downloaded unicase v2.5.1
[INFO] [stderr]   Downloaded mime_guess v2.0.1
[INFO] [stderr]   Downloaded indexmap v1.2.0
[INFO] [stderr]   Downloaded cc v1.0.45
[INFO] [stderr]   Downloaded rand v0.7.1
[INFO] [stderr]   Downloaded getrandom v0.1.12
[INFO] [stderr]   Downloaded serde v1.0.101
[INFO] [stderr]   Downloaded buf_redux v0.8.4
[INFO] [stderr]   Downloaded autocfg v0.1.6
[INFO] [stderr]   Downloaded http v0.1.18
[INFO] [stderr]   Downloaded tokio-serial v3.3.0
[INFO] [stderr]   Downloaded urlencoding v1.0.0
[INFO] [stderr]   Downloaded safemem v0.3.2
[INFO] [stderr]   Downloaded headers v0.2.3
[INFO] [stderr]   Downloaded tungstenite v0.9.1
[INFO] [stderr]   Downloaded tokio-modbus v0.3.4
[INFO] [stderr]   Downloaded warp v0.1.19
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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" "+3e59a8c2f14152ccc92a6c079f592dc2dc6fa93f" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 44626f7a8c7cfe3184a0d42980c972dc654f455a8361017032d6db455d5cdc8d
[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" "44626f7a8c7cfe3184a0d42980c972dc654f455a8361017032d6db455d5cdc8d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "44626f7a8c7cfe3184a0d42980c972dc654f455a8361017032d6db455d5cdc8d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "44626f7a8c7cfe3184a0d42980c972dc654f455a8361017032d6db455d5cdc8d", kill_on_drop: false }`
[INFO] [stdout] 44626f7a8c7cfe3184a0d42980c972dc654f455a8361017032d6db455d5cdc8d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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" "+3e59a8c2f14152ccc92a6c079f592dc2dc6fa93f" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 1c58141df86de1f8f4c6dfa78d4b0853f8e37ea86c169f2471400e7c07f012ec
[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" "1c58141df86de1f8f4c6dfa78d4b0853f8e37ea86c169f2471400e7c07f012ec", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Checking cfg-if v0.1.9
[INFO] [stderr]    Compiling byteorder v1.3.2
[INFO] [stderr]    Compiling log v0.4.8
[INFO] [stderr]    Compiling semver-parser v0.7.0
[INFO] [stderr]     Checking lazy_static v1.4.0
[INFO] [stderr]     Checking fnv v1.0.6
[INFO] [stderr]     Checking smallvec v0.6.10
[INFO] [stderr]     Checking slab v0.4.2
[INFO] [stderr]    Compiling rand_core v0.4.2
[INFO] [stderr]     Checking scopeguard v0.3.3
[INFO] [stderr]     Checking scopeguard v1.0.0
[INFO] [stderr]     Checking itoa v0.4.4
[INFO] [stderr]    Compiling bitflags v1.1.0
[INFO] [stderr]    Compiling typenum v1.11.2
[INFO] [stderr]    Compiling getrandom v0.1.12
[INFO] [stderr]     Checking matches v0.1.8
[INFO] [stderr]     Checking ppv-lite86 v0.2.5
[INFO] [stderr]    Compiling memchr v2.2.1
[INFO] [stderr]     Checking byte-tools v0.3.1
[INFO] [stderr]    Compiling httparse v1.3.4
[INFO] [stderr]     Checking siphasher v0.2.3
[INFO] [stderr]     Checking percent-encoding v2.1.0
[INFO] [stderr]     Checking fake-simd v0.1.2
[INFO] [stderr]    Compiling ryu v1.0.0
[INFO] [stderr]     Checking opaque-debug v0.2.3
[INFO] [stderr]     Checking scoped-tls v0.1.2
[INFO] [stderr]     Checking mime v0.3.14
[INFO] [stderr]     Checking remove_dir_all v0.5.2
[INFO] [stderr]     Checking try-lock v0.2.2
[INFO] [stderr]     Checking safemem v0.3.2
[INFO] [stderr]     Checking indexmap v1.2.0
[INFO] [stderr]     Checking dtoa v0.4.4
[INFO] [stderr]     Checking utf-8 v0.7.5
[INFO] [stderr]     Checking slab v0.3.0
[INFO] [stderr]     Checking smallvec v0.2.1
[INFO] [stderr]     Checking take v0.1.0
[INFO] [stderr]     Checking scoped-tls v1.0.0
[INFO] [stderr]     Checking urlencoding v1.0.0
[INFO] [stderr]    Compiling unicase v2.5.1
[INFO] [stderr]     Checking tokio-service v0.1.0
[INFO] [stderr]     Checking tokio-sync v0.1.6
[INFO] [stderr]     Checking crossbeam-utils v0.6.6
[INFO] [stderr]    Compiling semver v0.9.0
[INFO] [stderr]     Checking unicode-bidi v0.3.4
[INFO] [stderr]     Checking block-padding v0.1.4
[INFO] [stderr]    Compiling rand_core v0.3.1
[INFO] [stderr]    Compiling rand_jitter v0.1.4
[INFO] [stderr]     Checking unicode-normalization v0.1.8
[INFO] [stderr]    Compiling libc v0.2.62
[INFO] [stderr]     Checking lock_api v0.1.5
[INFO] [stderr]     Checking c2-chacha v0.2.2
[INFO] [stderr]     Checking arrayvec v0.4.11
[INFO] [stderr]     Checking iovec v0.1.2
[INFO] [stderr]     Checking rand_os v0.1.3
[INFO] [stderr]     Checking num_cpus v1.10.1
[INFO] [stderr]     Checking net2 v0.2.33
[INFO] [stderr]     Checking rand v0.4.6
[INFO] [stderr]     Checking time v0.1.42
[INFO] [stderr]     Checking rand_chacha v0.1.1
[INFO] [stderr]     Checking rand_pcg v0.1.2
[INFO] [stderr]     Checking unicase v1.4.2
[INFO] [stderr]    Compiling rand_isaac v0.1.1
[INFO] [stderr]    Compiling rand_hc v0.1.0
[INFO] [stderr]    Compiling rand_xorshift v0.1.1
[INFO] [stderr]    Compiling rustc_version v0.2.3
[INFO] [stderr]     Checking tokio-executor v0.1.8
[INFO] [stderr]     Checking crossbeam-queue v0.1.2
[INFO] [stderr]     Checking futures-cpupool v0.1.8
[INFO] [stderr]     Checking log v0.3.9
[INFO] [stderr]     Checking want v0.2.0
[INFO] [stderr]     Checking nix v0.14.1
[INFO] [stderr]     Checking rand_core v0.5.1
[INFO] [stderr]     Checking phf_shared v0.7.24
[INFO] [stderr]     Checking rand v0.6.5
[INFO] [stderr]     Checking mio v0.6.19
[INFO] [stderr]     Checking serde_json v1.0.40
[INFO] [stderr]     Checking tokio-current-thread v0.1.6
[INFO] [stderr]     Checking tokio-timer v0.2.11
[INFO] [stderr]     Checking twoway v0.1.8
[INFO] [stderr]     Checking buf_redux v0.8.4
[INFO] [stderr]     Checking bytes v0.4.12
[INFO] [stderr]     Checking base64 v0.10.1
[INFO] [stderr]     Checking mime v0.2.6
[INFO] [stderr]     Checking phf v0.7.24
[INFO] [stderr]     Checking rand_chacha v0.2.1
[INFO] [stderr]    Compiling parking_lot_core v0.4.0
[INFO] [stderr]    Compiling memoffset v0.5.1
[INFO] [stderr]    Compiling hyper v0.12.35
[INFO] [stderr]     Checking rand v0.3.23
[INFO] [stderr]     Checking idna v0.2.0
[INFO] [stderr]    Compiling mime_guess v2.0.1
[INFO] [stderr]     Checking rand v0.7.1
[INFO] [stderr]     Checking generic-array v0.12.3
[INFO] [stderr]     Checking tokio-io v0.1.12
[INFO] [stderr]     Checking http v0.1.18
[INFO] [stderr]     Checking tokio-buf v0.1.1
[INFO] [stderr]     Checking string v0.2.1
[INFO] [stderr]     Checking input_buffer v0.2.0
[INFO] [stderr]     Checking mio-uds v0.6.7
[INFO] [stderr]     Checking block-buffer v0.7.3
[INFO] [stderr]     Checking digest v0.8.1
[INFO] [stderr]     Checking crossbeam-epoch v0.7.2
[INFO] [stderr]     Checking sha-1 v0.8.1
[INFO] [stderr]     Checking url v2.1.0
[INFO] [stderr]     Checking tokio-codec v0.1.1
[INFO] [stderr]     Checking crossbeam-deque v0.7.1
[INFO] [stderr]     Checking parking_lot v0.7.1
[INFO] [stderr]     Checking tempfile v3.1.0
[INFO] [stderr]     Checking tokio-reactor v0.1.9
[INFO] [stderr]     Checking tokio-threadpool v0.1.15
[INFO] [stderr]    Compiling phf_generator v0.7.24
[INFO] [stderr]    Compiling phf_codegen v0.7.24
[INFO] [stderr]     Checking serde_urlencoded v0.6.1
[INFO] [stderr]    Compiling mime_guess v1.8.7
[INFO] [stderr]     Checking tokio-udp v0.1.5
[INFO] [stderr]     Checking tokio-tcp v0.1.3
[INFO] [stderr]     Checking tokio-uds v0.2.5
[INFO] [stderr]     Checking tokio-fs v0.1.6
[INFO] [stderr]     Checking http-body v0.1.0
[INFO] [stderr]     Checking h2 v0.1.26
[INFO] [stderr]     Checking headers-core v0.1.1
[INFO] [stderr]     Checking tungstenite v0.9.1
[INFO] [stderr]     Checking headers v0.2.3
[INFO] [stderr]     Checking tokio v0.1.22
[INFO] [stderr]     Checking serialport v3.3.0
[INFO] [stderr]     Checking tokio-core v0.1.17
[INFO] [stderr]     Checking mio-serial v3.3.0
[INFO] [stderr]     Checking tokio-serial v3.3.0
[INFO] [stderr]     Checking tokio-proto v0.1.1
[INFO] [stderr]     Checking multipart v0.16.1
[INFO] [stderr]     Checking tokio-modbus v0.3.4
[INFO] [stderr]     Checking warp v0.1.19
[INFO] [stderr]     Checking modbus-tcp-leak v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1m 11s
[INFO] running `Command { std: "docker" "inspect" "1c58141df86de1f8f4c6dfa78d4b0853f8e37ea86c169f2471400e7c07f012ec", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1c58141df86de1f8f4c6dfa78d4b0853f8e37ea86c169f2471400e7c07f012ec", kill_on_drop: false }`
[INFO] [stdout] 1c58141df86de1f8f4c6dfa78d4b0853f8e37ea86c169f2471400e7c07f012ec