[INFO] cloning repository https://github.com/unique-gautam-yadav/rust-std-echo-client
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/unique-gautam-yadav/rust-std-echo-client" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Funique-gautam-yadav%2Frust-std-echo-client", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Funique-gautam-yadav%2Frust-std-echo-client'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] e47849ade2fe1760127b8ff2780edbf4fced2541
[INFO] checking unique-gautam-yadav/rust-std-echo-client against try#e784c10fc2dd34bf2bb7b1e51117e35d3f9c5837 for pr-143619
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Funique-gautam-yadav%2Frust-std-echo-client" "/workspace/builds/worker-6-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-6-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/unique-gautam-yadav/rust-std-echo-client
[INFO] finished tweaking git repo https://github.com/unique-gautam-yadav/rust-std-echo-client
[INFO] tweaked toml for git repo https://github.com/unique-gautam-yadav/rust-std-echo-client written to /workspace/builds/worker-6-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/unique-gautam-yadav/rust-std-echo-client on toolchain e784c10fc2dd34bf2bb7b1e51117e35d3f9c5837
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+e784c10fc2dd34bf2bb7b1e51117e35d3f9c5837" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/unique-gautam-yadav/rust-std-echo-client 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" "+e784c10fc2dd34bf2bb7b1e51117e35d3f9c5837" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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:cf8efcab8866f2cf4285301c7418e2f4f2a9b088c91ba69c40d5b659f81557f7" "/opt/rustwide/cargo-home/bin/cargo" "+e784c10fc2dd34bf2bb7b1e51117e35d3f9c5837" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 4fe8c57befb9d5c76d63cc597ae228f730cac2f310e2bf658f8e781d76e5c189
[INFO] running `Command { std: "docker" "start" "-a" "4fe8c57befb9d5c76d63cc597ae228f730cac2f310e2bf658f8e781d76e5c189", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "4fe8c57befb9d5c76d63cc597ae228f730cac2f310e2bf658f8e781d76e5c189", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4fe8c57befb9d5c76d63cc597ae228f730cac2f310e2bf658f8e781d76e5c189", kill_on_drop: false }`
[INFO] [stdout] 4fe8c57befb9d5c76d63cc597ae228f730cac2f310e2bf658f8e781d76e5c189
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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:cf8efcab8866f2cf4285301c7418e2f4f2a9b088c91ba69c40d5b659f81557f7" "/opt/rustwide/cargo-home/bin/cargo" "+e784c10fc2dd34bf2bb7b1e51117e35d3f9c5837" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 079b7c190316a581f12b207c7be219f1207ff79cda3301495711748bfba48875
[INFO] running `Command { std: "docker" "start" "-a" "079b7c190316a581f12b207c7be219f1207ff79cda3301495711748bfba48875", kill_on_drop: false }`
[INFO] [stderr]     Checking echo-client-std v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.11s
[INFO] running `Command { std: "docker" "inspect" "079b7c190316a581f12b207c7be219f1207ff79cda3301495711748bfba48875", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "079b7c190316a581f12b207c7be219f1207ff79cda3301495711748bfba48875", kill_on_drop: false }`
[INFO] [stdout] 079b7c190316a581f12b207c7be219f1207ff79cda3301495711748bfba48875