[INFO] fetching crate jsonrpc-tcp-server 17.1.0...
[INFO] checking jsonrpc-tcp-server-17.1.0 against master#dfd7b8d03fb93d0e03147d28b3be6d93260fa94d for pr-87050
[INFO] extracting crate jsonrpc-tcp-server 17.1.0 into /workspace/builds/worker-13/source
[INFO] validating manifest of crates.io crate jsonrpc-tcp-server 17.1.0 on toolchain dfd7b8d03fb93d0e03147d28b3be6d93260fa94d
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+dfd7b8d03fb93d0e03147d28b3be6d93260fa94d" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate jsonrpc-tcp-server 17.1.0
[INFO] finished tweaking crates.io crate jsonrpc-tcp-server 17.1.0
[INFO] tweaked toml for crates.io crate jsonrpc-tcp-server 17.1.0 written to /workspace/builds/worker-13/source/Cargo.toml
[INFO] crate crates.io crate jsonrpc-tcp-server 17.1.0 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+dfd7b8d03fb93d0e03147d28b3be6d93260fa94d" "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-13/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/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" "+dfd7b8d03fb93d0e03147d28b3be6d93260fa94d" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 0a6a1b53b949a255897c638c489d33c559847a8339e2862f349645c9487b9533
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "0a6a1b53b949a255897c638c489d33c559847a8339e2862f349645c9487b9533", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "0a6a1b53b949a255897c638c489d33c559847a8339e2862f349645c9487b9533", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0a6a1b53b949a255897c638c489d33c559847a8339e2862f349645c9487b9533", kill_on_drop: false }`
[INFO] [stdout] 0a6a1b53b949a255897c638c489d33c559847a8339e2862f349645c9487b9533
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/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" "+dfd7b8d03fb93d0e03147d28b3be6d93260fa94d" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 7eafe327b2d389c1e90bc7864de53c8adcfd2fe14220cadf4b463dc73f35737d
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "7eafe327b2d389c1e90bc7864de53c8adcfd2fe14220cadf4b463dc73f35737d", kill_on_drop: false }`
[INFO] [stderr]    Compiling log v0.4.14
[INFO] [stderr]     Checking pin-project-lite v0.2.6
[INFO] [stderr]     Checking pin-project-lite v0.1.12
[INFO] [stderr]     Checking bytes v0.5.6
[INFO] [stderr]     Checking smallvec v1.6.1
[INFO] [stderr]    Compiling futures-util v0.3.15
[INFO] [stderr]     Checking instant v0.1.9
[INFO] [stderr]    Compiling unicase v2.6.0
[INFO] [stderr]     Checking lock_api v0.4.4
[INFO] [stderr]     Checking bstr v0.2.16
[INFO] [stderr]     Checking futures-channel v0.3.15
[INFO] [stderr]     Checking net2 v0.2.37
[INFO] [stderr]     Checking iovec v0.1.4
[INFO] [stderr]    Compiling syn v1.0.72
[INFO] [stderr]     Checking serde_json v1.0.64
[INFO] [stderr]     Checking parking_lot_core v0.8.3
[INFO] [stderr]     Checking parking_lot v0.11.1
[INFO] [stderr]     Checking mio v0.6.23
[INFO] [stderr]     Checking globset v0.4.6
[INFO] [stderr]     Checking env_logger v0.7.1
[INFO] [stderr]     Checking tokio v0.2.25
[INFO] [stderr]     Checking tokio-util v0.3.1
[INFO] [stderr]    Compiling futures-macro v0.3.15
[INFO] [stderr]    Compiling serde_derive v1.0.126
[INFO] [stderr]     Checking futures-executor v0.3.15
[INFO] [stderr]     Checking futures v0.3.15
[INFO] [stderr]     Checking jsonrpc-core v17.1.0
[INFO] [stderr]     Checking jsonrpc-server-utils v17.1.0
[INFO] [stderr]     Checking jsonrpc-tcp-server v17.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 40.95s
[INFO] running `Command { std: "docker" "inspect" "7eafe327b2d389c1e90bc7864de53c8adcfd2fe14220cadf4b463dc73f35737d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7eafe327b2d389c1e90bc7864de53c8adcfd2fe14220cadf4b463dc73f35737d", kill_on_drop: false }`
[INFO] [stdout] 7eafe327b2d389c1e90bc7864de53c8adcfd2fe14220cadf4b463dc73f35737d