[INFO] cloning repository https://github.com/sombrastudios/alias_extractor
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/sombrastudios/alias_extractor" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsombrastudios%2Falias_extractor", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsombrastudios%2Falias_extractor'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] ec799f6c0b863ef0ae01c1da50d065d8ea2447b3
[INFO] testing sombrastudios/alias_extractor against beta-2021-01-01 for beta-1.50-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsombrastudios%2Falias_extractor" "/workspace/builds/worker-4/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/sombrastudios/alias_extractor on toolchain beta-2021-01-01
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-01-01" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/sombrastudios/alias_extractor
[INFO] finished tweaking git repo https://github.com/sombrastudios/alias_extractor
[INFO] tweaked toml for git repo https://github.com/sombrastudios/alias_extractor written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] crate git repo https://github.com/sombrastudios/alias_extractor already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-01-01" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-01-01" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 112f99d7b08e2639c2d20834f164926dcdce1fbec895f5475b794b8a5fb13d7f
[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" "112f99d7b08e2639c2d20834f164926dcdce1fbec895f5475b794b8a5fb13d7f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "112f99d7b08e2639c2d20834f164926dcdce1fbec895f5475b794b8a5fb13d7f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "112f99d7b08e2639c2d20834f164926dcdce1fbec895f5475b794b8a5fb13d7f", kill_on_drop: false }`
[INFO] [stdout] 112f99d7b08e2639c2d20834f164926dcdce1fbec895f5475b794b8a5fb13d7f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "rustops/crates-build-env@sha256:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-01-01" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] e8df1a81139e6125122bd2d98807612927e75a9d1e0d3d0d9a1dc78100ea72ba
[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" "e8df1a81139e6125122bd2d98807612927e75a9d1e0d3d0d9a1dc78100ea72ba", kill_on_drop: false }`
[INFO] [stderr]    Compiling alias_extractor v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `help`
[INFO] [stdout]   --> src/main.rs:28:13
[INFO] [stdout]    |
[INFO] [stdout] 28 |         let help = "--help".to_string();
[INFO] [stdout]    |             ^^^^ help: if this is intentional, prefix it with an underscore: `_help`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `help`
[INFO] [stdout]   --> src/main.rs:30:18
[INFO] [stdout]    |
[INFO] [stdout] 30 |             Some(help) => print_help(),
[INFO] [stdout]    |                  ^^^^ help: if this is intentional, prefix it with an underscore: `_help`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.97s
[INFO] running `Command { std: "docker" "inspect" "e8df1a81139e6125122bd2d98807612927e75a9d1e0d3d0d9a1dc78100ea72ba", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e8df1a81139e6125122bd2d98807612927e75a9d1e0d3d0d9a1dc78100ea72ba", kill_on_drop: false }`
[INFO] [stdout] e8df1a81139e6125122bd2d98807612927e75a9d1e0d3d0d9a1dc78100ea72ba
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "rustops/crates-build-env@sha256:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-01-01" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 23381c107af9ad3d0e517b094d6306ef04bca6c1b559c26ed01588bc5d8e0afb
[INFO] running `Command { std: "docker" "start" "-a" "23381c107af9ad3d0e517b094d6306ef04bca6c1b559c26ed01588bc5d8e0afb", kill_on_drop: false }`
[INFO] [stderr]    Compiling alias_extractor v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `help`
[INFO] [stdout]   --> src/main.rs:28:13
[INFO] [stdout]    |
[INFO] [stdout] 28 |         let help = "--help".to_string();
[INFO] [stdout]    |             ^^^^ help: if this is intentional, prefix it with an underscore: `_help`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `help`
[INFO] [stdout]   --> src/main.rs:30:18
[INFO] [stdout]    |
[INFO] [stdout] 30 |             Some(help) => print_help(),
[INFO] [stdout]    |                  ^^^^ help: if this is intentional, prefix it with an underscore: `_help`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.81s
[INFO] running `Command { std: "docker" "inspect" "23381c107af9ad3d0e517b094d6306ef04bca6c1b559c26ed01588bc5d8e0afb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "23381c107af9ad3d0e517b094d6306ef04bca6c1b559c26ed01588bc5d8e0afb", kill_on_drop: false }`
[INFO] [stdout] 23381c107af9ad3d0e517b094d6306ef04bca6c1b559c26ed01588bc5d8e0afb
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "rustops/crates-build-env@sha256:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-01-01" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 1cc74fc31db9e70eef496ec6fc71d7a537c82031792d92ee20250a01dd22973a
[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" "1cc74fc31db9e70eef496ec6fc71d7a537c82031792d92ee20250a01dd22973a", kill_on_drop: false }`
[INFO] [stdout] 
[INFO] [stderr] warning: unused variable: `help`
[INFO] [stdout] running 0 tests
[INFO] [stderr]   --> src/main.rs:28:13
[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] 28 |         let help = "--help".to_string();
[INFO] [stdout] 
[INFO] [stderr]    |             ^^^^ help: if this is intentional, prefix it with an underscore: `_help`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `help`
[INFO] [stderr]   --> src/main.rs:30:18
[INFO] [stderr]    |
[INFO] [stderr] 30 |             Some(help) => print_help(),
[INFO] [stderr]    |                  ^^^^ help: if this is intentional, prefix it with an underscore: `_help`
[INFO] [stderr] 
[INFO] [stderr] warning: 2 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/alias_extractor-d1539400d9b90c3b
[INFO] running `Command { std: "docker" "inspect" "1cc74fc31db9e70eef496ec6fc71d7a537c82031792d92ee20250a01dd22973a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1cc74fc31db9e70eef496ec6fc71d7a537c82031792d92ee20250a01dd22973a", kill_on_drop: false }`
[INFO] [stdout] 1cc74fc31db9e70eef496ec6fc71d7a537c82031792d92ee20250a01dd22973a