[INFO] fetching crate warp-handle 0.5.1...
[INFO] checking warp-handle-0.5.1 against master#33fdb797f59421c7bbecaa4588ed5d7a31a9494a for pr-87190-3
[INFO] extracting crate warp-handle 0.5.1 into /workspace/builds/worker-103/source
[INFO] validating manifest of crates.io crate warp-handle 0.5.1 on toolchain 33fdb797f59421c7bbecaa4588ed5d7a31a9494a
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+33fdb797f59421c7bbecaa4588ed5d7a31a9494a" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate warp-handle 0.5.1
[INFO] finished tweaking crates.io crate warp-handle 0.5.1
[INFO] tweaked toml for crates.io crate warp-handle 0.5.1 written to /workspace/builds/worker-103/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+33fdb797f59421c7bbecaa4588ed5d7a31a9494a" "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" "+33fdb797f59421c7bbecaa4588ed5d7a31a9494a" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-103/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-103/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" "+33fdb797f59421c7bbecaa4588ed5d7a31a9494a" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 152a65dd553454d3e97fec229514c215be2cadcdd727d01043349540bd3709db
[INFO] running `Command { std: "docker" "start" "-a" "152a65dd553454d3e97fec229514c215be2cadcdd727d01043349540bd3709db", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "152a65dd553454d3e97fec229514c215be2cadcdd727d01043349540bd3709db", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "152a65dd553454d3e97fec229514c215be2cadcdd727d01043349540bd3709db", kill_on_drop: false }`
[INFO] [stdout] 152a65dd553454d3e97fec229514c215be2cadcdd727d01043349540bd3709db
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-103/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-103/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" "+33fdb797f59421c7bbecaa4588ed5d7a31a9494a" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 1e9096ffbd88e642621fe717b14c26853ee977fc2d30a6b1c6aea3f5ce879fe2
[INFO] running `Command { std: "docker" "start" "-a" "1e9096ffbd88e642621fe717b14c26853ee977fc2d30a6b1c6aea3f5ce879fe2", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling proc-macro-hack v0.5.19
[INFO] [stderr]    Compiling proc-macro-nested v0.1.7
[INFO] [stderr]     Checking futures-io v0.3.16
[INFO] [stderr]    Compiling futures-macro v0.3.16
[INFO] [stderr]    Compiling tokio v1.10.0
[INFO] [stderr]    Compiling futures-util v0.3.16
[INFO] [stderr]     Checking num_cpus v1.13.0
[INFO] [stderr]    Compiling thiserror-impl v1.0.26
[INFO] [stderr]     Checking thiserror v1.0.26
[INFO] [stderr]     Checking tokio-util v0.6.7
[INFO] [stderr]     Checking tokio-stream v0.1.7
[INFO] [stderr]     Checking futures-executor v0.3.16
[INFO] [stderr]     Checking h2 v0.3.4
[INFO] [stderr]     Checking tokio-tungstenite v0.13.0
[INFO] [stderr]     Checking futures v0.3.16
[INFO] [stderr]     Checking hyper v0.14.11
[INFO] [stderr]     Checking warp v0.3.1
[INFO] [stderr]     Checking warp-handle v0.5.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `hello`
[INFO] [stdout]   --> src/tests.rs:19:13
[INFO] [stdout]    |
[INFO] [stdout] 19 |         let hello = get()
[INFO] [stdout]    |             ^^^^^ help: if this is intentional, prefix it with an underscore: `_hello`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` 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 31.34s
[INFO] running `Command { std: "docker" "inspect" "1e9096ffbd88e642621fe717b14c26853ee977fc2d30a6b1c6aea3f5ce879fe2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1e9096ffbd88e642621fe717b14c26853ee977fc2d30a6b1c6aea3f5ce879fe2", kill_on_drop: false }`
[INFO] [stdout] 1e9096ffbd88e642621fe717b14c26853ee977fc2d30a6b1c6aea3f5ce879fe2