[INFO] cloning repository https://github.com/thshubham/multiThreaded_server_rust
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/thshubham/multiThreaded_server_rust" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fthshubham%2FmultiThreaded_server_rust", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fthshubham%2FmultiThreaded_server_rust'...
[INFO] [stderr] fatal: error closing file /workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fthshubham%2FmultiThreaded_server_rust/packed-refs.new: No space left on device
[WARN] Retrying crate fetch in 3 seconds (attempt 1)
[INFO] cloning repository https://github.com/thshubham/multiThreaded_server_rust
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/thshubham/multiThreaded_server_rust" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fthshubham%2FmultiThreaded_server_rust", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fthshubham%2FmultiThreaded_server_rust'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] faea240ad4bf796f0d378c13d71cf6ee83d4260e
[INFO] building thshubham/multiThreaded_server_rust against master#44f415c1d617ebc7b931a243b7b321ef8a6ca47c for pr-142134-abi-ast-error
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fthshubham%2FmultiThreaded_server_rust" "/workspace/builds/worker-7-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-7-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/thshubham/multiThreaded_server_rust on toolchain 44f415c1d617ebc7b931a243b7b321ef8a6ca47c
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+44f415c1d617ebc7b931a243b7b321ef8a6ca47c" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/thshubham/multiThreaded_server_rust
[INFO] finished tweaking git repo https://github.com/thshubham/multiThreaded_server_rust
[INFO] tweaked toml for git repo https://github.com/thshubham/multiThreaded_server_rust written to /workspace/builds/worker-7-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/thshubham/multiThreaded_server_rust 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" "+44f415c1d617ebc7b931a243b7b321ef8a6ca47c" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/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:eea15d5475069c3ef791f10c2c6b5af2ee421ef2da1e680ecce1cba46243983b" "/opt/rustwide/cargo-home/bin/cargo" "+44f415c1d617ebc7b931a243b7b321ef8a6ca47c" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 17f339f43de249dea882f07ac255ec4fe8e05c796e1a016c27339af5fcff5249
[INFO] running `Command { std: "docker" "start" "-a" "17f339f43de249dea882f07ac255ec4fe8e05c796e1a016c27339af5fcff5249", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "17f339f43de249dea882f07ac255ec4fe8e05c796e1a016c27339af5fcff5249", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "17f339f43de249dea882f07ac255ec4fe8e05c796e1a016c27339af5fcff5249", kill_on_drop: false }`
[INFO] [stdout] 17f339f43de249dea882f07ac255ec4fe8e05c796e1a016c27339af5fcff5249
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/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=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-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:eea15d5475069c3ef791f10c2c6b5af2ee421ef2da1e680ecce1cba46243983b" "/opt/rustwide/cargo-home/bin/cargo" "+44f415c1d617ebc7b931a243b7b321ef8a6ca47c" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] c391c05ca7ab2ac997e4c3fb1b2374c2a13b6224c52d1448df67a381b6fc6c8a
[INFO] running `Command { std: "docker" "start" "-a" "c391c05ca7ab2ac997e4c3fb1b2374c2a13b6224c52d1448df67a381b6fc6c8a", kill_on_drop: false }`
[INFO] [stderr]    Compiling server_in_rust v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: field `workers` is never read
[INFO] [stdout]  --> src/lib.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | pub struct ThreadPool {
[INFO] [stdout]   |            ---------- field in this struct
[INFO] [stdout] 4 |     workers: Vec<Worker>,
[INFO] [stdout]   |     ^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `id` and `thread` are never read
[INFO] [stdout]   --> src/lib.rs:37:5
[INFO] [stdout]    |
[INFO] [stdout] 36 | struct Worker {
[INFO] [stdout]    |        ------ fields in this struct
[INFO] [stdout] 37 |     id:usize,
[INFO] [stdout]    |     ^^
[INFO] [stdout] 38 |     thread: thread::JoinHandle<()>
[INFO] [stdout]    |     ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 1.06s
[INFO] running `Command { std: "docker" "inspect" "c391c05ca7ab2ac997e4c3fb1b2374c2a13b6224c52d1448df67a381b6fc6c8a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c391c05ca7ab2ac997e4c3fb1b2374c2a13b6224c52d1448df67a381b6fc6c8a", kill_on_drop: false }`
[INFO] [stdout] c391c05ca7ab2ac997e4c3fb1b2374c2a13b6224c52d1448df67a381b6fc6c8a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/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=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-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:eea15d5475069c3ef791f10c2c6b5af2ee421ef2da1e680ecce1cba46243983b" "/opt/rustwide/cargo-home/bin/cargo" "+44f415c1d617ebc7b931a243b7b321ef8a6ca47c" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 90a9458c3488d9ba20f69e3d97ae7086e23927b70f23558c73d7bdfd6f27fcf9
[INFO] running `Command { std: "docker" "start" "-a" "90a9458c3488d9ba20f69e3d97ae7086e23927b70f23558c73d7bdfd6f27fcf9", kill_on_drop: false }`
[INFO] [stderr] Error response from daemon: failed to create task for container: failed to create shim task: OCI runtime create failed: runc create failed: unable to start container process: error during container init: error mounting "/var/lib/crater-agent-workspace/rustup-home" to rootfs at "/opt/rustwide/rustup-home": create mountpoint for /opt/rustwide/rustup-home mount: mkdirat /var/lib/docker/overlay2/6c23997c91f61cbbf977cb6c044aa1f68e9a147e1881388c038118f91d6467b6/merged/opt/rustwide/rustup-home: no space left on device: unknown
[INFO] running `Command { std: "docker" "inspect" "90a9458c3488d9ba20f69e3d97ae7086e23927b70f23558c73d7bdfd6f27fcf9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "90a9458c3488d9ba20f69e3d97ae7086e23927b70f23558c73d7bdfd6f27fcf9", kill_on_drop: false }`
[INFO] [stdout] 90a9458c3488d9ba20f69e3d97ae7086e23927b70f23558c73d7bdfd6f27fcf9