[INFO] cloning repository https://github.com/tvallois/websockets-rust
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/tvallois/websockets-rust" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftvallois%2Fwebsockets-rust", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftvallois%2Fwebsockets-rust'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 51f0296989092561875f938b427a5906c7b2f5dc
[INFO] checking tvallois/websockets-rust against master#385fa9d845dd326c6bbfd58c22244215e431948a for absurd-question-mark-desugar
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftvallois%2Fwebsockets-rust" "/workspace/builds/worker-4-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/tvallois/websockets-rust on toolchain 385fa9d845dd326c6bbfd58c22244215e431948a
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/tvallois/websockets-rust
[INFO] finished tweaking git repo https://github.com/tvallois/websockets-rust
[INFO] tweaked toml for git repo https://github.com/tvallois/websockets-rust written to /workspace/builds/worker-4-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/tvallois/websockets-rust already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded ascii v0.9.1
[INFO] [stderr]   Downloaded sha-1 v0.8.1
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[INFO] [stderr]   Downloaded redis v0.10.0
[INFO] [stderr]   Downloaded mio v0.6.17
[INFO] [stderr]   Downloaded ws v0.8.1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] f7737948c282a446a6028b0036da8186377e2e74307d58e11b5ead8f6518d2eb
[INFO] running `Command { std: "docker" "start" "-a" "f7737948c282a446a6028b0036da8186377e2e74307d58e11b5ead8f6518d2eb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "f7737948c282a446a6028b0036da8186377e2e74307d58e11b5ead8f6518d2eb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f7737948c282a446a6028b0036da8186377e2e74307d58e11b5ead8f6518d2eb", kill_on_drop: false }`
[INFO] [stdout] f7737948c282a446a6028b0036da8186377e2e74307d58e11b5ead8f6518d2eb
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/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" "RUSTDOCFLAGS=--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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 31a2d9a37d30955e5ada00fdee5a59c691a79643c26f4ad3550361f86eda4e31
[INFO] running `Command { std: "docker" "start" "-a" "31a2d9a37d30955e5ada00fdee5a59c691a79643c26f4ad3550361f86eda4e31", kill_on_drop: false }`
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[INFO] [stderr]    Compiling autocfg v0.1.4
[INFO] [stderr]     Checking rand_core v0.4.0
[INFO] [stderr]     Checking cfg-if v0.1.9
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[INFO] [stderr]     Checking smallvec v0.6.9
[INFO] [stderr]    Compiling proc-macro2 v0.4.30
[INFO] [stderr]    Compiling typenum v1.10.0
[INFO] [stderr]     Checking futures v0.1.27
[INFO] [stderr]     Checking stable_deref_trait v1.1.1
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[INFO] [stderr]    Compiling syn v0.15.34
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[INFO] [stderr]     Checking owning_ref v0.4.0
[INFO] [stderr]     Checking unicode-bidi v0.3.4
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[INFO] [stderr]    Compiling semver v0.9.0
[INFO] [stderr]     Checking crossbeam-utils v0.6.5
[INFO] [stderr]     Checking rand_core v0.3.1
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[INFO] [stderr]     Checking rand_xorshift v0.1.1
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[INFO] [stderr]     Checking percent-encoding v1.0.1
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[INFO] [stderr]    Compiling serde v1.0.91
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[INFO] [stderr]    Compiling parking_lot_core v0.4.0
[INFO] [stderr]     Checking void v1.0.2
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[INFO] [stderr]     Checking unreachable v1.0.0
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[INFO] [stderr]    Compiling serde_derive v1.0.91
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[INFO] [stderr]     Checking websockets v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: found module declaration for lib.rs
[INFO] [stdout]  --> src/main.rs:3:1
[INFO] [stdout]   |
[INFO] [stdout] 3 | mod lib;
[INFO] [stdout]   | ^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: lib.rs is the root of this crate's library target
[INFO] [stdout]   = help: to refer to it from other targets, use the library's name as the path
[INFO] [stdout]   = note: `#[warn(special_module_name)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `config` is never read
[INFO] [stdout]   --> src/lib/websocket.rs:25:5
[INFO] [stdout]    |
[INFO] [stdout] 22 | struct Server {
[INFO] [stdout]    |        ------ field in this struct
[INFO] [stdout] ...
[INFO] [stdout] 25 |     config: Config,
[INFO] [stdout]    |     ^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `redis_path` is never read
[INFO] [stdout]  --> src/lib/config.rs:4:9
[INFO] [stdout]   |
[INFO] [stdout] 2 | pub struct Config {
[INFO] [stdout]   |            ------ field in this struct
[INFO] [stdout] 3 |     pub channels: Vec<String>,
[INFO] [stdout] 4 |     pub redis_path: String,
[INFO] [stdout]   |         ^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `Config` has a derived impl for the trait `Clone`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: found module declaration for lib.rs
[INFO] [stdout]  --> src/main.rs:3:1
[INFO] [stdout]   |
[INFO] [stdout] 3 | mod lib;
[INFO] [stdout]   | ^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: lib.rs is the root of this crate's library target
[INFO] [stdout]   = help: to refer to it from other targets, use the library's name as the path
[INFO] [stdout]   = note: `#[warn(special_module_name)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `config` is never read
[INFO] [stdout]   --> src/lib/websocket.rs:25:5
[INFO] [stdout]    |
[INFO] [stdout] 22 | struct Server {
[INFO] [stdout]    |        ------ field in this struct
[INFO] [stdout] ...
[INFO] [stdout] 25 |     config: Config,
[INFO] [stdout]    |     ^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `redis_path` is never read
[INFO] [stdout]  --> src/lib/config.rs:4:9
[INFO] [stdout]   |
[INFO] [stdout] 2 | pub struct Config {
[INFO] [stdout]   |            ------ field in this struct
[INFO] [stdout] 3 |     pub channels: Vec<String>,
[INFO] [stdout] 4 |     pub redis_path: String,
[INFO] [stdout]   |         ^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `Config` has a derived impl for the trait `Clone`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 14.72s
[INFO] [stderr] warning: the following packages contain code that will be rejected by a future version of Rust: redis v0.10.0
[INFO] [stderr] note: to see what the problems were, use the option `--future-incompat-report`, or run `cargo report future-incompatibilities --id 3`
[INFO] running `Command { std: "docker" "inspect" "31a2d9a37d30955e5ada00fdee5a59c691a79643c26f4ad3550361f86eda4e31", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "31a2d9a37d30955e5ada00fdee5a59c691a79643c26f4ad3550361f86eda4e31", kill_on_drop: false }`
[INFO] [stdout] 31a2d9a37d30955e5ada00fdee5a59c691a79643c26f4ad3550361f86eda4e31