[INFO] fetching crate jsonrpc-http-server 16.0.0...
[INFO] checking jsonrpc-http-server-16.0.0 against master#a609fb45efad59dfd459c76e50899be9f0583b5a for pr-80579
[INFO] extracting crate jsonrpc-http-server 16.0.0 into /workspace/builds/worker-8/source
[INFO] validating manifest of crates.io crate jsonrpc-http-server 16.0.0 on toolchain a609fb45efad59dfd459c76e50899be9f0583b5a
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a609fb45efad59dfd459c76e50899be9f0583b5a" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate jsonrpc-http-server 16.0.0
[INFO] finished tweaking crates.io crate jsonrpc-http-server 16.0.0
[INFO] tweaked toml for crates.io crate jsonrpc-http-server 16.0.0 written to /workspace/builds/worker-8/source/Cargo.toml
[INFO] crate crates.io crate jsonrpc-http-server 16.0.0 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a609fb45efad59dfd459c76e50899be9f0583b5a" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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" "rustops/crates-build-env@sha256:c8ac004eab7d63a0ad09a2dde3d3353ba464f767bee4de425dc8f74c46a1905e" "/opt/rustwide/cargo-home/bin/cargo" "+a609fb45efad59dfd459c76e50899be9f0583b5a" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 72d9d5c49e2ed467a56611a71dfbd02924a3655d022d8b90e7048e0a3089b1da
[INFO] running `Command { std: "docker" "start" "-a" "72d9d5c49e2ed467a56611a71dfbd02924a3655d022d8b90e7048e0a3089b1da", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "72d9d5c49e2ed467a56611a71dfbd02924a3655d022d8b90e7048e0a3089b1da", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "72d9d5c49e2ed467a56611a71dfbd02924a3655d022d8b90e7048e0a3089b1da", kill_on_drop: false }`
[INFO] [stdout] 72d9d5c49e2ed467a56611a71dfbd02924a3655d022d8b90e7048e0a3089b1da
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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" "rustops/crates-build-env@sha256:c8ac004eab7d63a0ad09a2dde3d3353ba464f767bee4de425dc8f74c46a1905e" "/opt/rustwide/cargo-home/bin/cargo" "+a609fb45efad59dfd459c76e50899be9f0583b5a" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] b0a5ad576f5cfd5fdc75ee174674e10dac7db5bab2c6677c26adba2aaf52660e
[INFO] running `Command { std: "docker" "start" "-a" "b0a5ad576f5cfd5fdc75ee174674e10dac7db5bab2c6677c26adba2aaf52660e", kill_on_drop: false }`
[INFO] [stderr]     Checking itoa v0.4.6
[INFO] [stderr]    Compiling indexmap v1.6.0
[INFO] [stderr]     Checking want v0.2.0
[INFO] [stderr]     Checking tokio-io v0.1.13
[INFO] [stderr]     Checking http v0.1.21
[INFO] [stderr]     Checking serde_json v1.0.60
[INFO] [stderr]     Checking tokio-reactor v0.1.12
[INFO] [stderr]     Checking tokio-codec v0.1.2
[INFO] [stderr]     Checking tokio-fs v0.1.7
[INFO] [stderr]     Checking tokio-tcp v0.1.4
[INFO] [stderr]     Checking tokio-uds v0.2.7
[INFO] [stderr]     Checking tokio-udp v0.1.6
[INFO] [stderr]     Checking jsonrpc-core v16.0.0
[INFO] [stderr]     Checking tokio v0.1.22
[INFO] [stderr]     Checking jsonrpc-server-utils v16.0.0
[INFO] [stderr]     Checking http-body v0.1.0
[INFO] [stderr]     Checking h2 v0.1.26
[INFO] [stderr]     Checking hyper v0.12.35
[INFO] [stderr]     Checking jsonrpc-http-server v16.0.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 15.68s
[INFO] running `Command { std: "docker" "inspect" "b0a5ad576f5cfd5fdc75ee174674e10dac7db5bab2c6677c26adba2aaf52660e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b0a5ad576f5cfd5fdc75ee174674e10dac7db5bab2c6677c26adba2aaf52660e", kill_on_drop: false }`
[INFO] [stdout] b0a5ad576f5cfd5fdc75ee174674e10dac7db5bab2c6677c26adba2aaf52660e