[INFO] cloning repository https://github.com/spec-tacles/rustacles
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/spec-tacles/rustacles" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fspec-tacles%2Frustacles", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fspec-tacles%2Frustacles'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 556911faa6b9e74bc1010bce6271e54f38a69676
[INFO] checking spec-tacles/rustacles against try#07fecb9cf34c4979a772ba38c99d6d9144768413 for pr-87710
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fspec-tacles%2Frustacles" "/workspace/builds/worker-4/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/spec-tacles/rustacles on toolchain 07fecb9cf34c4979a772ba38c99d6d9144768413
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+07fecb9cf34c4979a772ba38c99d6d9144768413" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/spec-tacles/rustacles
[INFO] finished tweaking git repo https://github.com/spec-tacles/rustacles
[INFO] tweaked toml for git repo https://github.com/spec-tacles/rustacles written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] crate git repo https://github.com/spec-tacles/rustacles already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+07fecb9cf34c4979a772ba38c99d6d9144768413" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded cookie-factory v0.3.2
[INFO] [stderr]   Downloaded async-tungstenite v0.6.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "+07fecb9cf34c4979a772ba38c99d6d9144768413" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 06a74674c0607fa7d6d7a4de3f47594dfd25c5cf719efa1268c2e1cfd70c9466
[INFO] running `Command { std: "docker" "start" "-a" "06a74674c0607fa7d6d7a4de3f47594dfd25c5cf719efa1268c2e1cfd70c9466", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "06a74674c0607fa7d6d7a4de3f47594dfd25c5cf719efa1268c2e1cfd70c9466", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "06a74674c0607fa7d6d7a4de3f47594dfd25c5cf719efa1268c2e1cfd70c9466", kill_on_drop: false }`
[INFO] [stdout] 06a74674c0607fa7d6d7a4de3f47594dfd25c5cf719efa1268c2e1cfd70c9466
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "+07fecb9cf34c4979a772ba38c99d6d9144768413" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 897effd599e270f17ab036e68fecb61af5bbc4e17f5d2988263a3f05fabd3fca
[INFO] running `Command { std: "docker" "start" "-a" "897effd599e270f17ab036e68fecb61af5bbc4e17f5d2988263a3f05fabd3fca", kill_on_drop: false }`
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[INFO] [stderr]     Checking rustacles-model v0.1.0 (/opt/rustwide/workdir/models)
[INFO] [stderr]     Checking hyper-tls v0.4.3
[INFO] [stderr]     Checking reqwest v0.10.10
[INFO] [stderr]     Checking rustacles-gateway v0.1.0 (/opt/rustwide/workdir/gateway)
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> gateway/src/queue.rs:26:19
[INFO] [stdout]    |
[INFO] [stdout] 26 |     fn start_send(mut self: Pin<&mut Self>, item: TungsteniteMessage) -> Result<(), Self::Error> {
[INFO] [stdout]    |                   ----^^^^
[INFO] [stdout]    |                   |
[INFO] [stdout]    |                   help: remove this `mut`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> gateway/src/queue.rs:26:19
[INFO] [stdout]    |
[INFO] [stdout] 26 |     fn start_send(mut self: Pin<&mut Self>, item: TungsteniteMessage) -> Result<(), Self::Error> {
[INFO] [stdout]    |                   ----^^^^
[INFO] [stdout]    |                   |
[INFO] [stdout]    |                   help: remove this `mut`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Checking rustacles-brokers v0.2.0 (/opt/rustwide/workdir/brokers)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1m 08s
[INFO] running `Command { std: "docker" "inspect" "897effd599e270f17ab036e68fecb61af5bbc4e17f5d2988263a3f05fabd3fca", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "897effd599e270f17ab036e68fecb61af5bbc4e17f5d2988263a3f05fabd3fca", kill_on_drop: false }`
[INFO] [stdout] 897effd599e270f17ab036e68fecb61af5bbc4e17f5d2988263a3f05fabd3fca