[INFO] cloning repository https://github.com/ionandrei5002/rust-command [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/ionandrei5002/rust-command" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fionandrei5002%2Frust-command", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fionandrei5002%2Frust-command'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] 91e133837636d1c812686cff440f7fdea7e658b3 [INFO] checking ionandrei5002/rust-command against master#9fa580b1175018b0a276b0bc68f9827a106f7260 for pr-82565 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fionandrei5002%2Frust-command" "/workspace/builds/worker-12/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-12/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/ionandrei5002/rust-command on toolchain 9fa580b1175018b0a276b0bc68f9827a106f7260 [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+9fa580b1175018b0a276b0bc68f9827a106f7260" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking git repo https://github.com/ionandrei5002/rust-command [INFO] finished tweaking git repo https://github.com/ionandrei5002/rust-command [INFO] tweaked toml for git repo https://github.com/ionandrei5002/rust-command written to /workspace/builds/worker-12/source/Cargo.toml [INFO] crate git repo https://github.com/ionandrei5002/rust-command already has a lockfile, it will not be regenerated [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+9fa580b1175018b0a276b0bc68f9827a106f7260" "fetch" "--locked" "--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-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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:f2f6bcd4b43ebee4e173f653a26493129bdb64017c85f916b780ca7fbdbaa79d" "/opt/rustwide/cargo-home/bin/cargo" "+9fa580b1175018b0a276b0bc68f9827a106f7260" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] bea96783cd3eb07352274a6bca4c1ca2d71e556e5ad8763a2cb9fd91a732785f [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" "bea96783cd3eb07352274a6bca4c1ca2d71e556e5ad8763a2cb9fd91a732785f", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "bea96783cd3eb07352274a6bca4c1ca2d71e556e5ad8763a2cb9fd91a732785f", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "bea96783cd3eb07352274a6bca4c1ca2d71e556e5ad8763a2cb9fd91a732785f", kill_on_drop: false }` [INFO] [stdout] bea96783cd3eb07352274a6bca4c1ca2d71e556e5ad8763a2cb9fd91a732785f [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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:f2f6bcd4b43ebee4e173f653a26493129bdb64017c85f916b780ca7fbdbaa79d" "/opt/rustwide/cargo-home/bin/cargo" "+9fa580b1175018b0a276b0bc68f9827a106f7260" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] b3adde95dd9a02c7d34de0b89146b23a225d4f8f620dc41771a6eaa3d0d3e674 [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" "b3adde95dd9a02c7d34de0b89146b23a225d4f8f620dc41771a6eaa3d0d3e674", kill_on_drop: false }` [INFO] [stderr] Compiling syn v1.0.9 [INFO] [stderr] Compiling byteorder v1.3.2 [INFO] [stderr] Compiling serde_derive v1.0.103 [INFO] [stderr] Checking serde v1.0.103 [INFO] [stderr] Checking serde_json v1.0.42 [INFO] [stderr] Checking rust-command v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: unused import: `UnixListener` [INFO] [stdout] --> src/main.rs:2:37 [INFO] [stdout] | [INFO] [stdout] 2 | use std::os::unix::net::{UnixStream,UnixListener}; [INFO] [stdout] | ^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `UnixListener` [INFO] [stdout] --> src/main.rs:2:37 [INFO] [stdout] | [INFO] [stdout] 2 | use std::os::unix::net::{UnixStream,UnixListener}; [INFO] [stdout] | ^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `size` [INFO] [stdout] --> src/main.rs:71:17 [INFO] [stdout] | [INFO] [stdout] 71 | let size = write_message(&client, &msg); [INFO] [stdout] | ^^^^ help: if this is intentional, prefix it with an underscore: `_size` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `size` [INFO] [stdout] --> src/main.rs:71:17 [INFO] [stdout] | [INFO] [stdout] 71 | let size = write_message(&client, &msg); [INFO] [stdout] | ^^^^ help: if this is intentional, prefix it with an underscore: `_size` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused `Result` that must be used [INFO] [stdout] --> src/main.rs:64:5 [INFO] [stdout] | [INFO] [stdout] 64 | io::stdin().read_line(&mut buffer); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_must_use)]` on by default [INFO] [stdout] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 3 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused `Result` that must be used [INFO] [stdout] --> src/main.rs:64:5 [INFO] [stdout] | [INFO] [stdout] 64 | io::stdin().read_line(&mut buffer); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_must_use)]` on by default [INFO] [stdout] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 3 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 26.21s [INFO] running `Command { std: "docker" "inspect" "b3adde95dd9a02c7d34de0b89146b23a225d4f8f620dc41771a6eaa3d0d3e674", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "b3adde95dd9a02c7d34de0b89146b23a225d4f8f620dc41771a6eaa3d0d3e674", kill_on_drop: false }` [INFO] [stdout] b3adde95dd9a02c7d34de0b89146b23a225d4f8f620dc41771a6eaa3d0d3e674