[INFO] fetching crate socket_io_server 0.1.0...
[INFO] checking socket_io_server-0.1.0 against master#936f2600b6c903b04387f74ed5cbce88bb06d243 for pr-91141
[INFO] extracting crate socket_io_server 0.1.0 into /workspace/builds/worker-83/source
[INFO] validating manifest of crates.io crate socket_io_server 0.1.0 on toolchain 936f2600b6c903b04387f74ed5cbce88bb06d243
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+936f2600b6c903b04387f74ed5cbce88bb06d243" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate socket_io_server 0.1.0
[INFO] finished tweaking crates.io crate socket_io_server 0.1.0
[INFO] tweaked toml for crates.io crate socket_io_server 0.1.0 written to /workspace/builds/worker-83/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+936f2600b6c903b04387f74ed5cbce88bb06d243" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+936f2600b6c903b04387f74ed5cbce88bb06d243" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded tracing v0.1.29
[INFO] [stderr]   Downloaded tracing-core v0.1.21
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[INFO] [stderr]   Downloaded buf_redux v0.8.4
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[INFO] [stderr]   Downloaded pin-project-internal v0.4.28
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[INFO] [stderr]   Downloaded engine_io_parser v0.2.0
[INFO] [stderr]   Downloaded engine_io_server v0.1.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-83/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-83/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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+936f2600b6c903b04387f74ed5cbce88bb06d243" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] ded714de6889d72420561f5188e2e6a8c57f0c660492ac9651d37f6790b285e3
[INFO] running `Command { std: "docker" "start" "-a" "ded714de6889d72420561f5188e2e6a8c57f0c660492ac9651d37f6790b285e3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "ded714de6889d72420561f5188e2e6a8c57f0c660492ac9651d37f6790b285e3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ded714de6889d72420561f5188e2e6a8c57f0c660492ac9651d37f6790b285e3", kill_on_drop: false }`
[INFO] [stdout] ded714de6889d72420561f5188e2e6a8c57f0c660492ac9651d37f6790b285e3
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-83/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-83/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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+936f2600b6c903b04387f74ed5cbce88bb06d243" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 59fde933752d24550ea23816267221a8ac3e4cbc847040e87aaa7c03b27b042a
[INFO] running `Command { std: "docker" "start" "-a" "59fde933752d24550ea23816267221a8ac3e4cbc847040e87aaa7c03b27b042a", kill_on_drop: false }`
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[INFO] [stderr]    Compiling libc v0.2.108
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[INFO] [stderr]     Checking pin-project-lite v0.2.7
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[INFO] [stderr]     Checking tinyvec_macros v0.1.0
[INFO] [stderr]     Checking matches v0.1.9
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[INFO] [stderr]    Compiling futures-macro v0.3.18
[INFO] [stderr]    Compiling tokio-macros v0.2.6
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[INFO] [stderr]    Compiling serde_derive v1.0.130
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[INFO] [stderr]     Checking engine_io_server v0.1.0
[INFO] [stderr]     Checking warp v0.2.5
[INFO] [stderr]     Checking socket_io_server v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: field is never read: `adapter`
[INFO] [stdout]  --> src/server.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 4 |     adapter: A,
[INFO] [stdout]   |     ^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `adapter`
[INFO] [stdout]  --> src/server.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 4 |     adapter: A,
[INFO] [stdout]   |     ^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 31.31s
[INFO] running `Command { std: "docker" "inspect" "59fde933752d24550ea23816267221a8ac3e4cbc847040e87aaa7c03b27b042a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "59fde933752d24550ea23816267221a8ac3e4cbc847040e87aaa7c03b27b042a", kill_on_drop: false }`
[INFO] [stdout] 59fde933752d24550ea23816267221a8ac3e4cbc847040e87aaa7c03b27b042a