[INFO] cloning repository https://github.com/Simon-Laux/rust-websocket-experiment
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/Simon-Laux/rust-websocket-experiment" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FSimon-Laux%2Frust-websocket-experiment", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FSimon-Laux%2Frust-websocket-experiment'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] eaee543e1759c6b6558b6f6c746013caec8529e1
[INFO] checking Simon-Laux/rust-websocket-experiment against try#b2f80f6008cdafc35b4472bd46afa16cc6b0cd63 for pr-79470
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FSimon-Laux%2Frust-websocket-experiment" "/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/Simon-Laux/rust-websocket-experiment on toolchain b2f80f6008cdafc35b4472bd46afa16cc6b0cd63
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+b2f80f6008cdafc35b4472bd46afa16cc6b0cd63" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/Simon-Laux/rust-websocket-experiment
[INFO] finished tweaking git repo https://github.com/Simon-Laux/rust-websocket-experiment
[INFO] tweaked toml for git repo https://github.com/Simon-Laux/rust-websocket-experiment written to /workspace/builds/worker-1/source/Cargo.toml
[INFO] crate git repo https://github.com/Simon-Laux/rust-websocket-experiment already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+b2f80f6008cdafc35b4472bd46afa16cc6b0cd63" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[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" "rustops/crates-build-env@sha256:c8ac004eab7d63a0ad09a2dde3d3353ba464f767bee4de425dc8f74c46a1905e" "/opt/rustwide/cargo-home/bin/cargo" "+b2f80f6008cdafc35b4472bd46afa16cc6b0cd63" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 0cd0a37e46f6b01f1cd063ad02865453598c9472a2531ccffa68f4448ad81aa9
[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" "0cd0a37e46f6b01f1cd063ad02865453598c9472a2531ccffa68f4448ad81aa9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "0cd0a37e46f6b01f1cd063ad02865453598c9472a2531ccffa68f4448ad81aa9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0cd0a37e46f6b01f1cd063ad02865453598c9472a2531ccffa68f4448ad81aa9", kill_on_drop: false }`
[INFO] [stdout] 0cd0a37e46f6b01f1cd063ad02865453598c9472a2531ccffa68f4448ad81aa9
[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" "rustops/crates-build-env@sha256:c8ac004eab7d63a0ad09a2dde3d3353ba464f767bee4de425dc8f74c46a1905e" "/opt/rustwide/cargo-home/bin/cargo" "+b2f80f6008cdafc35b4472bd46afa16cc6b0cd63" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] b880c69e0d7c380af15678ba9ebae006318be9381309a0e7f12654410de95794
[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" "b880c69e0d7c380af15678ba9ebae006318be9381309a0e7f12654410de95794", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling maybe-uninit v2.0.0
[INFO] [stderr]     Checking cfg-if v0.1.10
[INFO] [stderr]     Checking ppv-lite86 v0.2.6
[INFO] [stderr]     Checking byte-tools v0.3.1
[INFO] [stderr]     Checking matches v0.1.8
[INFO] [stderr]    Compiling httparse v1.3.4
[INFO] [stderr]    Compiling log v0.4.8
[INFO] [stderr]     Checking fake-simd v0.1.2
[INFO] [stderr]     Checking percent-encoding v2.1.0
[INFO] [stderr]     Checking opaque-debug v0.2.3
[INFO] [stderr]     Checking fnv v1.0.6
[INFO] [stderr]     Checking base64 v0.11.0
[INFO] [stderr]     Checking utf-8 v0.7.5
[INFO] [stderr]     Checking bytes v0.4.12
[INFO] [stderr]     Checking getrandom v0.1.13
[INFO] [stderr]     Checking block-padding v0.1.5
[INFO] [stderr]     Checking unicode-bidi v0.3.4
[INFO] [stderr]     Checking block-buffer v0.7.3
[INFO] [stderr]     Checking c2-chacha v0.2.3
[INFO] [stderr]     Checking sha-1 v0.8.1
[INFO] [stderr]     Checking rand_core v0.5.1
[INFO] [stderr]     Checking http v0.1.19
[INFO] [stderr]     Checking input_buffer v0.2.0
[INFO] [stderr]     Checking smallvec v0.6.13
[INFO] [stderr]     Checking rand_chacha v0.2.1
[INFO] [stderr]     Checking rand v0.7.2
[INFO] [stderr]     Checking unicode-normalization v0.1.9
[INFO] [stderr]     Checking idna v0.2.0
[INFO] [stderr]     Checking url v2.1.0
[INFO] [stderr]     Checking tungstenite v0.9.2
[INFO] [stderr]     Checking rust-ws-test v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 17.43s
[INFO] running `Command { std: "docker" "inspect" "b880c69e0d7c380af15678ba9ebae006318be9381309a0e7f12654410de95794", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b880c69e0d7c380af15678ba9ebae006318be9381309a0e7f12654410de95794", kill_on_drop: false }`
[INFO] [stdout] b880c69e0d7c380af15678ba9ebae006318be9381309a0e7f12654410de95794