[INFO] fetching crate jsonrpc-core 17.0.0...
[INFO] checking jsonrpc-core-17.0.0 against try#9c1dcf141bc0875407c4eb36972857bd3db713e2 for pr-81863
[INFO] extracting crate jsonrpc-core 17.0.0 into /workspace/builds/worker-0/source
[INFO] validating manifest of crates.io crate jsonrpc-core 17.0.0 on toolchain 9c1dcf141bc0875407c4eb36972857bd3db713e2
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+9c1dcf141bc0875407c4eb36972857bd3db713e2" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate jsonrpc-core 17.0.0
[INFO] finished tweaking crates.io crate jsonrpc-core 17.0.0
[INFO] tweaked toml for crates.io crate jsonrpc-core 17.0.0 written to /workspace/builds/worker-0/source/Cargo.toml
[INFO] crate crates.io crate jsonrpc-core 17.0.0 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+9c1dcf141bc0875407c4eb36972857bd3db713e2" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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@sha256:21f1ed92105a0ef9b0d27ad8bdeb7f36f9f01ac17fffe3a3f3dc5241fc25d8f4" "/opt/rustwide/cargo-home/bin/cargo" "+9c1dcf141bc0875407c4eb36972857bd3db713e2" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] da5eb112d7389808a164d7446205cbcfa247e6d119385ef53bb913f0c2ee163a
[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" "da5eb112d7389808a164d7446205cbcfa247e6d119385ef53bb913f0c2ee163a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "da5eb112d7389808a164d7446205cbcfa247e6d119385ef53bb913f0c2ee163a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "da5eb112d7389808a164d7446205cbcfa247e6d119385ef53bb913f0c2ee163a", kill_on_drop: false }`
[INFO] [stdout] da5eb112d7389808a164d7446205cbcfa247e6d119385ef53bb913f0c2ee163a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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@sha256:21f1ed92105a0ef9b0d27ad8bdeb7f36f9f01ac17fffe3a3f3dc5241fc25d8f4" "/opt/rustwide/cargo-home/bin/cargo" "+9c1dcf141bc0875407c4eb36972857bd3db713e2" "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] 1cb5eb4facfec0a309efbed68883c5926000b608beab40e861db1fb6db59af61
[INFO] running `Command { std: "docker" "start" "-a" "1cb5eb4facfec0a309efbed68883c5926000b608beab40e861db1fb6db59af61", kill_on_drop: false }`
[INFO] [stderr]    Compiling memchr v2.3.4
[INFO] [stderr]     Checking futures-core v0.3.12
[INFO] [stderr]     Checking futures-sink v0.3.12
[INFO] [stderr]    Compiling serde v1.0.120
[INFO] [stderr]    Compiling serde_derive v1.0.120
[INFO] [stderr]    Compiling serde_json v1.0.61
[INFO] [stderr]     Checking futures-task v0.3.12
[INFO] [stderr]    Compiling syn v1.0.58
[INFO] [stderr]     Checking futures-channel v0.3.12
[INFO] [stderr]    Compiling futures-macro v0.3.12
[INFO] [stderr]     Checking futures-util v0.3.12
[INFO] [stderr]     Checking futures-executor v0.3.12
[INFO] [stderr]     Checking futures v0.3.12
[INFO] [stderr]     Checking jsonrpc-core v17.0.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 41.54s
[INFO] running `Command { std: "docker" "inspect" "1cb5eb4facfec0a309efbed68883c5926000b608beab40e861db1fb6db59af61", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1cb5eb4facfec0a309efbed68883c5926000b608beab40e861db1fb6db59af61", kill_on_drop: false }`
[INFO] [stdout] 1cb5eb4facfec0a309efbed68883c5926000b608beab40e861db1fb6db59af61