[INFO] cloning repository https://github.com/tjpalmer/async-demo
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/tjpalmer/async-demo" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftjpalmer%2Fasync-demo", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftjpalmer%2Fasync-demo'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] fdf3c82a34341b329d4a847ead7c7cab12c53321
[INFO] checking tjpalmer/async-demo against try#3e59a8c2f14152ccc92a6c079f592dc2dc6fa93f for pr-87248
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftjpalmer%2Fasync-demo" "/workspace/builds/worker-8/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-8/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/tjpalmer/async-demo 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/tjpalmer/async-demo
[INFO] finished tweaking git repo https://github.com/tjpalmer/async-demo
[INFO] tweaked toml for git repo https://github.com/tjpalmer/async-demo written to /workspace/builds/worker-8/source/Cargo.toml
[INFO] crate git repo https://github.com/tjpalmer/async-demo 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]  Downloading crates ...
[INFO] [stderr]   Downloaded tokio-macros v0.2.0-alpha.6
[INFO] [stderr]   Downloaded tokio-fs v0.2.0-alpha.6
[INFO] [stderr]   Downloaded hyper-tls v0.4.0-alpha.4
[INFO] [stderr]   Downloaded tokio-tls v0.3.0-alpha.6
[INFO] [stderr]   Downloaded futures-sink v0.3.0
[INFO] [stderr]   Downloaded futures-channel v0.3.0
[INFO] [stderr]   Downloaded futures-executor v0.3.0
[INFO] [stderr]   Downloaded futures-core v0.3.0
[INFO] [stderr]   Downloaded futures-io v0.3.0
[INFO] [stderr]   Downloaded futures-util v0.3.0
[INFO] [stderr]   Downloaded futures-macro v0.3.0
[INFO] [stderr]   Downloaded js-sys v0.3.30
[INFO] [stderr]   Downloaded reqwest v0.10.0-alpha.1
[INFO] [stderr]   Downloaded tokio v0.2.0-alpha.6
[INFO] [stderr]   Downloaded tokio-net v0.2.0-alpha.6
[INFO] [stderr]   Downloaded web-sys v0.3.30
[INFO] [stderr]   Downloaded futures v0.3.0
[INFO] [stderr]   Downloaded pin-project v0.4.5
[INFO] [stderr]   Downloaded tokio-timer v0.3.0-alpha.6
[INFO] [stderr]   Downloaded pin-project-internal v0.4.5
[INFO] [stderr]   Downloaded futures-task v0.3.0
[INFO] [stderr]   Downloaded wasm-bindgen-webidl v0.2.53
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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] 18b92b9c418da413dc87d9f5dc53e0cf6ab4412ad51f28e6a195352510974b92
[INFO] running `Command { std: "docker" "start" "-a" "18b92b9c418da413dc87d9f5dc53e0cf6ab4412ad51f28e6a195352510974b92", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "18b92b9c418da413dc87d9f5dc53e0cf6ab4412ad51f28e6a195352510974b92", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "18b92b9c418da413dc87d9f5dc53e0cf6ab4412ad51f28e6a195352510974b92", kill_on_drop: false }`
[INFO] [stdout] 18b92b9c418da413dc87d9f5dc53e0cf6ab4412ad51f28e6a195352510974b92
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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] 3ad6d6f5852bc3b05bbbac3e50f2cc4d7e37fdb394159cc485de615a2147ce83
[INFO] running `Command { std: "docker" "start" "-a" "3ad6d6f5852bc3b05bbbac3e50f2cc4d7e37fdb394159cc485de615a2147ce83", kill_on_drop: false }`
[INFO] [stderr]    Compiling autocfg v0.1.7
[INFO] [stderr]    Compiling proc-macro2 v1.0.6
[INFO] [stderr]    Compiling syn v1.0.7
[INFO] [stderr]    Compiling byteorder v1.3.2
[INFO] [stderr]    Compiling maybe-uninit v2.0.0
[INFO] [stderr]     Checking scopeguard v1.0.0
[INFO] [stderr]     Checking futures-sink-preview v0.3.0-alpha.19
[INFO] [stderr]     Checking rand_core v0.4.2
[INFO] [stderr]    Compiling cc v1.0.47
[INFO] [stderr]    Compiling version_check v0.1.5
[INFO] [stderr]     Checking itoa v0.4.4
[INFO] [stderr]    Compiling openssl v0.10.25
[INFO] [stderr]     Checking foreign-types-shared v0.1.1
[INFO] [stderr]    Compiling native-tls v0.2.3
[INFO] [stderr]    Compiling serde v1.0.102
[INFO] [stderr]     Checking futures-sink v0.3.0
[INFO] [stderr]     Checking openssl-probe v0.1.2
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[INFO] [stderr]    Compiling encoding_rs v0.8.20
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[INFO] [stderr]    Compiling memoffset v0.5.2
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[INFO] [stderr]     Checking foreign-types v0.3.2
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[INFO] [stderr]    Compiling unicase v2.5.1
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[INFO] [stderr]    Compiling rand_pcg v0.1.2
[INFO] [stderr]    Compiling rand_chacha v0.1.1
[INFO] [stderr]    Compiling rand v0.6.5
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[INFO] [stderr]    Compiling openssl-sys v0.9.52
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[INFO] [stderr]    Compiling quote v1.0.2
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[INFO] [stderr]     Checking base64 v0.10.1
[INFO] [stderr]    Compiling mime_guess v2.0.1
[INFO] [stderr]     Checking http v0.1.19
[INFO] [stderr]     Checking string v0.2.1
[INFO] [stderr]     Checking crossbeam-deque v0.7.2
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[INFO] [stderr]     Checking serde_urlencoded v0.6.1
[INFO] [stderr]    Compiling pin-project-internal v0.4.5
[INFO] [stderr]    Compiling tracing-attributes v0.1.5
[INFO] [stderr]    Compiling proc-macro-hack v0.5.11
[INFO] [stderr]    Compiling tokio-macros v0.2.0-alpha.6
[INFO] [stderr]    Compiling futures-macro v0.3.0
[INFO] [stderr]     Checking tracing v0.1.10
[INFO] [stderr]     Checking tokio-executor v0.2.0-alpha.6
[INFO] [stderr]     Checking pin-project v0.4.5
[INFO] [stderr]     Checking tokio-io v0.2.0-alpha.6
[INFO] [stderr]     Checking tokio-codec v0.2.0-alpha.6
[INFO] [stderr]     Checking tower-make v0.3.0-alpha.2a
[INFO] [stderr]     Checking tokio-tls v0.3.0-alpha.6
[INFO] [stderr]     Checking tokio-timer v0.3.0-alpha.6
[INFO] [stderr]     Checking tokio-fs v0.2.0-alpha.6
[INFO] [stderr]     Checking futures-util v0.3.0
[INFO] [stderr]     Checking tokio-net v0.2.0-alpha.6
[INFO] [stderr]     Checking h2 v0.2.0-alpha.3
[INFO] [stderr]     Checking tokio v0.2.0-alpha.6
[INFO] [stderr]     Checking hyper v0.13.0-alpha.4
[INFO] [stderr]     Checking futures-executor v0.3.0
[INFO] [stderr]     Checking futures v0.3.0
[INFO] [stderr]     Checking hyper-tls v0.4.0-alpha.4
[INFO] [stderr]     Checking reqwest v0.10.0-alpha.1
[INFO] [stderr]     Checking async-demo v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 33.31s
[INFO] running `Command { std: "docker" "inspect" "3ad6d6f5852bc3b05bbbac3e50f2cc4d7e37fdb394159cc485de615a2147ce83", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3ad6d6f5852bc3b05bbbac3e50f2cc4d7e37fdb394159cc485de615a2147ce83", kill_on_drop: false }`
[INFO] [stdout] 3ad6d6f5852bc3b05bbbac3e50f2cc4d7e37fdb394159cc485de615a2147ce83