[INFO] fetching crate node_rust_demo 0.1.0...
[INFO] building node_rust_demo-0.1.0 against try#4987e9d4227139400384ab59296ffee3b0fb1183 for pr-146237-2
[INFO] extracting crate node_rust_demo 0.1.0 into /workspace/builds/worker-4-tc2/source
[INFO] started tweaking crates.io crate node_rust_demo 0.1.0
[INFO] finished tweaking crates.io crate node_rust_demo 0.1.0
[INFO] tweaked toml for crates.io crate node_rust_demo 0.1.0 written to /workspace/builds/worker-4-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate node_rust_demo 0.1.0 on toolchain 4987e9d4227139400384ab59296ffee3b0fb1183
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+4987e9d4227139400384ab59296ffee3b0fb1183" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate node_rust_demo 0.1.0 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+4987e9d4227139400384ab59296ffee3b0fb1183" "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-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+4987e9d4227139400384ab59296ffee3b0fb1183" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 2c26106c2b04e8ae996213b09edf70385190cbb63adf9bd3f6d8d9380fa9af50
[INFO] running `Command { std: "docker" "start" "-a" "2c26106c2b04e8ae996213b09edf70385190cbb63adf9bd3f6d8d9380fa9af50", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "2c26106c2b04e8ae996213b09edf70385190cbb63adf9bd3f6d8d9380fa9af50", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2c26106c2b04e8ae996213b09edf70385190cbb63adf9bd3f6d8d9380fa9af50", kill_on_drop: false }`
[INFO] [stdout] 2c26106c2b04e8ae996213b09edf70385190cbb63adf9bd3f6d8d9380fa9af50
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/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" "RUSTDOCFLAGS=--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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+4987e9d4227139400384ab59296ffee3b0fb1183" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] c9d13b0a4956055b92e16d8a2ee384f05dff777790a351b234ee064cc9e2b1ed
[INFO] running `Command { std: "docker" "start" "-a" "c9d13b0a4956055b92e16d8a2ee384f05dff777790a351b234ee064cc9e2b1ed", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.137
[INFO] [stderr]    Compiling rand v0.4.6
[INFO] [stderr]    Compiling rand v0.3.23
[INFO] [stderr]    Compiling pick-one v1.0.1
[INFO] [stderr]    Compiling node_rust_demo v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 2.15s
[INFO] running `Command { std: "docker" "inspect" "c9d13b0a4956055b92e16d8a2ee384f05dff777790a351b234ee064cc9e2b1ed", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c9d13b0a4956055b92e16d8a2ee384f05dff777790a351b234ee064cc9e2b1ed", kill_on_drop: false }`
[INFO] [stdout] c9d13b0a4956055b92e16d8a2ee384f05dff777790a351b234ee064cc9e2b1ed
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/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" "RUSTDOCFLAGS=--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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+4987e9d4227139400384ab59296ffee3b0fb1183" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 659985a18588af479031b855fa8947b8acaa9a39e02f90a1ec6ef927d1036d8d
[INFO] running `Command { std: "docker" "start" "-a" "659985a18588af479031b855fa8947b8acaa9a39e02f90a1ec6ef927d1036d8d", kill_on_drop: false }`
[INFO] [stderr]    Compiling node_rust_demo v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.36s
[INFO] running `Command { std: "docker" "inspect" "659985a18588af479031b855fa8947b8acaa9a39e02f90a1ec6ef927d1036d8d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "659985a18588af479031b855fa8947b8acaa9a39e02f90a1ec6ef927d1036d8d", kill_on_drop: false }`
[INFO] [stdout] 659985a18588af479031b855fa8947b8acaa9a39e02f90a1ec6ef927d1036d8d