[INFO] cloning repository https://github.com/subhroacharjee/non-blocking-single-threaded-server
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/subhroacharjee/non-blocking-single-threaded-server" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsubhroacharjee%2Fnon-blocking-single-threaded-server", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsubhroacharjee%2Fnon-blocking-single-threaded-server'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 31eac178e01e08ce44190050372613b468e76fff
[INFO] checking subhroacharjee/non-blocking-single-threaded-server against try#2277c63fa464d237b17b68d3b87f9fbb89e58a3e for pr-133570-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsubhroacharjee%2Fnon-blocking-single-threaded-server" "/workspace/builds/worker-4-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4-tc2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/subhroacharjee/non-blocking-single-threaded-server on toolchain 2277c63fa464d237b17b68d3b87f9fbb89e58a3e
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+2277c63fa464d237b17b68d3b87f9fbb89e58a3e" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/subhroacharjee/non-blocking-single-threaded-server
[INFO] finished tweaking git repo https://github.com/subhroacharjee/non-blocking-single-threaded-server
[INFO] tweaked toml for git repo https://github.com/subhroacharjee/non-blocking-single-threaded-server written to /workspace/builds/worker-4-tc2/source/Cargo.toml
[INFO] crate git repo https://github.com/subhroacharjee/non-blocking-single-threaded-server 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" "+2277c63fa464d237b17b68d3b87f9fbb89e58a3e" "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-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:f3a9d4ad9d972b27faf3965f35b62e55ba32bbce8f20bc8fe909558a86702fde" "/opt/rustwide/cargo-home/bin/cargo" "+2277c63fa464d237b17b68d3b87f9fbb89e58a3e" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 49558c0710ad353374eb7234050579fa035f17065196a216894fe9a867980e69
[INFO] running `Command { std: "docker" "start" "-a" "49558c0710ad353374eb7234050579fa035f17065196a216894fe9a867980e69", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "49558c0710ad353374eb7234050579fa035f17065196a216894fe9a867980e69", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "49558c0710ad353374eb7234050579fa035f17065196a216894fe9a867980e69", kill_on_drop: false }`
[INFO] [stdout] 49558c0710ad353374eb7234050579fa035f17065196a216894fe9a867980e69
[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:f3a9d4ad9d972b27faf3965f35b62e55ba32bbce8f20bc8fe909558a86702fde" "/opt/rustwide/cargo-home/bin/cargo" "+2277c63fa464d237b17b68d3b87f9fbb89e58a3e" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 2f6f3aabb001e2d8821cf7e9a14adee12ac17e9cab5821bae48f7b20b68c398b
[INFO] running `Command { std: "docker" "start" "-a" "2f6f3aabb001e2d8821cf7e9a14adee12ac17e9cab5821bae48f7b20b68c398b", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.155
[INFO] [stderr]     Checking non-blocking-poll-server v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 1.35s
[INFO] running `Command { std: "docker" "inspect" "2f6f3aabb001e2d8821cf7e9a14adee12ac17e9cab5821bae48f7b20b68c398b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2f6f3aabb001e2d8821cf7e9a14adee12ac17e9cab5821bae48f7b20b68c398b", kill_on_drop: false }`
[INFO] [stdout] 2f6f3aabb001e2d8821cf7e9a14adee12ac17e9cab5821bae48f7b20b68c398b