[INFO] fetching crate ntex-rt 0.3.1...
[INFO] checking ntex-rt-0.3.1 against try#cac44d9528e3bbbdaa1537d187bd489ccc5de18c for pr-91141
[INFO] extracting crate ntex-rt 0.3.1 into /workspace/builds/worker-29/source
[INFO] validating manifest of crates.io crate ntex-rt 0.3.1 on toolchain cac44d9528e3bbbdaa1537d187bd489ccc5de18c
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+cac44d9528e3bbbdaa1537d187bd489ccc5de18c" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate ntex-rt 0.3.1
[INFO] finished tweaking crates.io crate ntex-rt 0.3.1
[INFO] tweaked toml for crates.io crate ntex-rt 0.3.1 written to /workspace/builds/worker-29/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+cac44d9528e3bbbdaa1537d187bd489ccc5de18c" "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" "+cac44d9528e3bbbdaa1537d187bd489ccc5de18c" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-29/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-29/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" "+cac44d9528e3bbbdaa1537d187bd489ccc5de18c" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 7a1d712036df48b2c003ac62fd8a7a27da4cb06f5e4385a3997ab9408ea2e5ef
[INFO] running `Command { std: "docker" "start" "-a" "7a1d712036df48b2c003ac62fd8a7a27da4cb06f5e4385a3997ab9408ea2e5ef", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "7a1d712036df48b2c003ac62fd8a7a27da4cb06f5e4385a3997ab9408ea2e5ef", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7a1d712036df48b2c003ac62fd8a7a27da4cb06f5e4385a3997ab9408ea2e5ef", kill_on_drop: false }`
[INFO] [stdout] 7a1d712036df48b2c003ac62fd8a7a27da4cb06f5e4385a3997ab9408ea2e5ef
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-29/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-29/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" "+cac44d9528e3bbbdaa1537d187bd489ccc5de18c" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] d68e50e6c76df1070c317ad11ad22b3e7089ae23a9d5414173b5439f5bad6a16
[INFO] running `Command { std: "docker" "start" "-a" "d68e50e6c76df1070c317ad11ad22b3e7089ae23a9d5414173b5439f5bad6a16", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.108
[INFO] [stderr]    Compiling log v0.4.14
[INFO] [stderr]    Compiling futures-core v0.3.18
[INFO] [stderr]    Compiling autocfg v1.0.1
[INFO] [stderr]     Checking cfg-if v1.0.0
[INFO] [stderr]     Checking pin-project-lite v0.2.7
[INFO] [stderr]     Checking once_cell v1.8.0
[INFO] [stderr]     Checking slab v0.4.5
[INFO] [stderr]     Checking futures-sink v0.3.18
[INFO] [stderr]     Checking ntex-util v0.1.1
[INFO] [stderr]    Compiling tokio v1.14.0
[INFO] [stderr]     Checking signal-hook-registry v1.4.0
[INFO] [stderr]     Checking mio v0.7.14
[INFO] [stderr]     Checking ntex-rt v0.3.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: field is never read: `system`
[INFO] [stdout]    --> src/builder.rs:121:5
[INFO] [stdout]     |
[INFO] [stdout] 121 |     system: System,
[INFO] [stdout]     |     ^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `system`
[INFO] [stdout]    --> src/builder.rs:155:5
[INFO] [stdout]     |
[INFO] [stdout] 155 |     system: System,
[INFO] [stdout]     |     ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `system`
[INFO] [stdout]    --> src/builder.rs:121:5
[INFO] [stdout]     |
[INFO] [stdout] 121 |     system: System,
[INFO] [stdout]     |     ^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `system`
[INFO] [stdout]    --> src/builder.rs:155:5
[INFO] [stdout]     |
[INFO] [stdout] 155 |     system: System,
[INFO] [stdout]     |     ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 30.68s
[INFO] running `Command { std: "docker" "inspect" "d68e50e6c76df1070c317ad11ad22b3e7089ae23a9d5414173b5439f5bad6a16", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d68e50e6c76df1070c317ad11ad22b3e7089ae23a9d5414173b5439f5bad6a16", kill_on_drop: false }`
[INFO] [stdout] d68e50e6c76df1070c317ad11ad22b3e7089ae23a9d5414173b5439f5bad6a16