[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] testing ionandrei5002/rust-command against beta-2021-09-08 for beta-1.56-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fionandrei5002%2Frust-command" "/workspace/builds/worker-0/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-0/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/ionandrei5002/rust-command on toolchain beta-2021-09-08
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-09-08" "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-0/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" "+beta-2021-09-08" "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-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-09-08" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 2fe06f3a5af88895ffb25d114888c46692ee769ffc10b9f063c2dd93ca05feba
[INFO] running `Command { std: "docker" "start" "-a" "2fe06f3a5af88895ffb25d114888c46692ee769ffc10b9f063c2dd93ca05feba", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "2fe06f3a5af88895ffb25d114888c46692ee769ffc10b9f063c2dd93ca05feba", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2fe06f3a5af88895ffb25d114888c46692ee769ffc10b9f063c2dd93ca05feba", kill_on_drop: false }`
[INFO] [stdout] 2fe06f3a5af88895ffb25d114888c46692ee769ffc10b9f063c2dd93ca05feba
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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" "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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-09-08" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 46ee9cf348a7fd1faa0919a256b5f932afdbd29afb28c9ecca2945da7318eb1e
[INFO] running `Command { std: "docker" "start" "-a" "46ee9cf348a7fd1faa0919a256b5f932afdbd29afb28c9ecca2945da7318eb1e", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling proc-macro2 v1.0.6
[INFO] [stderr]    Compiling unicode-xid v0.2.0
[INFO] [stderr]    Compiling syn v1.0.9
[INFO] [stderr]    Compiling ryu v1.0.2
[INFO] [stderr]    Compiling serde v1.0.103
[INFO] [stderr]    Compiling quote v1.0.2
[INFO] [stderr]    Compiling serde_derive v1.0.103
[INFO] [stderr]    Compiling serde_json v1.0.42
[INFO] [stderr]    Compiling 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 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] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1m 33s
[INFO] running `Command { std: "docker" "inspect" "46ee9cf348a7fd1faa0919a256b5f932afdbd29afb28c9ecca2945da7318eb1e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "46ee9cf348a7fd1faa0919a256b5f932afdbd29afb28c9ecca2945da7318eb1e", kill_on_drop: false }`
[INFO] [stdout] 46ee9cf348a7fd1faa0919a256b5f932afdbd29afb28c9ecca2945da7318eb1e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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" "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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-09-08" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] e9dce04c58d212dd57b57487b21ee6709aa410d0d154d3ae24d80b9a11770b6e
[INFO] running `Command { std: "docker" "start" "-a" "e9dce04c58d212dd57b57487b21ee6709aa410d0d154d3ae24d80b9a11770b6e", kill_on_drop: false }`
[INFO] [stderr]    Compiling 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 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] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.69s
[INFO] running `Command { std: "docker" "inspect" "e9dce04c58d212dd57b57487b21ee6709aa410d0d154d3ae24d80b9a11770b6e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e9dce04c58d212dd57b57487b21ee6709aa410d0d154d3ae24d80b9a11770b6e", kill_on_drop: false }`
[INFO] [stdout] e9dce04c58d212dd57b57487b21ee6709aa410d0d154d3ae24d80b9a11770b6e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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" "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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-09-08" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] f1e652abc3b77044fa0c987c83658a4252fac6c985f52613581a5e5984a2cd78
[INFO] running `Command { std: "docker" "start" "-a" "f1e652abc3b77044fa0c987c83658a4252fac6c985f52613581a5e5984a2cd78", kill_on_drop: false }`
[INFO] [stdout] 
[INFO] [stderr] warning: unused import: `UnixListener`
[INFO] [stdout] running 0 tests
[INFO] [stderr]  --> src/main.rs:2:37
[INFO] [stdout] 
[INFO] [stderr]   |
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stderr] 2 | use std::os::unix::net::{UnixStream,UnixListener};
[INFO] [stdout] 
[INFO] [stderr]   |                                     ^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `size`
[INFO] [stderr]   --> src/main.rs:71:17
[INFO] [stderr]    |
[INFO] [stderr] 71 |             let size = write_message(&client, &msg);
[INFO] [stderr]    |                 ^^^^ help: if this is intentional, prefix it with an underscore: `_size`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused `Result` that must be used
[INFO] [stderr]   --> src/main.rs:64:5
[INFO] [stderr]    |
[INFO] [stderr] 64 |     io::stdin().read_line(&mut buffer);
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] 
[INFO] [stderr] warning: `rust-command` (bin "rust-command" test) generated 3 warnings
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.05s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/rust_command-bca2b237d99ce863)
[INFO] running `Command { std: "docker" "inspect" "f1e652abc3b77044fa0c987c83658a4252fac6c985f52613581a5e5984a2cd78", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f1e652abc3b77044fa0c987c83658a4252fac6c985f52613581a5e5984a2cd78", kill_on_drop: false }`
[INFO] [stdout] f1e652abc3b77044fa0c987c83658a4252fac6c985f52613581a5e5984a2cd78