[INFO] updating cached repository https://github.com/sombrastudios/alias_extractor
[INFO] running `"git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "-c" "remote.origin.fetch=refs/heads/*:refs/heads/*" "fetch" "origin" "--force" "--prune"`
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] ec799f6c0b863ef0ae01c1da50d065d8ea2447b3
[INFO] testing sombrastudios/alias_extractor against master#28742a1146f10a4f09369baad027a464acb7a766 for pr-71274
[INFO] running `"git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsombrastudios%2Falias_extractor" "/workspace/builds/worker-7/source"`
[INFO] [stderr] Cloning into '/workspace/builds/worker-7/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/sombrastudios/alias_extractor on toolchain 28742a1146f10a4f09369baad027a464acb7a766
[INFO] running `"/workspace/cargo-home/bin/cargo" "+28742a1146f10a4f09369baad027a464acb7a766" "read-manifest" "--manifest-path" "Cargo.toml"`
[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-7/source/Cargo.toml
[INFO] crate git repo https://github.com/sombrastudios/alias_extractor already has a lockfile, it will not be regenerated
[INFO] running `"/workspace/cargo-home/bin/cargo" "+28742a1146f10a4f09369baad027a464acb7a766" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+28742a1146f10a4f09369baad027a464acb7a766" "build" "--frozen"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 232ed793a9f1303cb0045a627fafd0bf95f5b24067e2588fb49d2c7ec54faf37
[INFO] running `"docker" "start" "-a" "232ed793a9f1303cb0045a627fafd0bf95f5b24067e2588fb49d2c7ec54faf37"`
[INFO] [stderr]    Compiling alias_extractor v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] warning: unused variable: `help`
[INFO] [stderr]   --> src/main.rs:28:13
[INFO] [stderr]    |
[INFO] [stderr] 28 |         let help = "--help".to_string();
[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 dev [unoptimized + debuginfo] target(s) in 0.87s
[INFO] running `"docker" "inspect" "232ed793a9f1303cb0045a627fafd0bf95f5b24067e2588fb49d2c7ec54faf37"`
[INFO] running `"docker" "rm" "-f" "232ed793a9f1303cb0045a627fafd0bf95f5b24067e2588fb49d2c7ec54faf37"`
[INFO] [stdout] 232ed793a9f1303cb0045a627fafd0bf95f5b24067e2588fb49d2c7ec54faf37
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+28742a1146f10a4f09369baad027a464acb7a766" "test" "--frozen" "--no-run"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 32bac19126c17691a96f9bd52c336106a48cc07f0a7153552f7bc181be67b984
[INFO] running `"docker" "start" "-a" "32bac19126c17691a96f9bd52c336106a48cc07f0a7153552f7bc181be67b984"`
[INFO] [stderr]    Compiling alias_extractor v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] warning: unused variable: `help`
[INFO] [stderr]   --> src/main.rs:28:13
[INFO] [stderr]    |
[INFO] [stderr] 28 |         let help = "--help".to_string();
[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 0.76s
[INFO] running `"docker" "inspect" "32bac19126c17691a96f9bd52c336106a48cc07f0a7153552f7bc181be67b984"`
[INFO] running `"docker" "rm" "-f" "32bac19126c17691a96f9bd52c336106a48cc07f0a7153552f7bc181be67b984"`
[INFO] [stdout] 32bac19126c17691a96f9bd52c336106a48cc07f0a7153552f7bc181be67b984
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+28742a1146f10a4f09369baad027a464acb7a766" "test" "--frozen"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 3d3d54b19f4f2028523e6efb3e786b0382e800c99730a278ba9086fe5c93a7f5
[INFO] running `"docker" "start" "-a" "3d3d54b19f4f2028523e6efb3e786b0382e800c99730a278ba9086fe5c93a7f5"`
[INFO] [stderr] warning: unused variable: `help`
[INFO] [stderr]   --> src/main.rs:28:13
[INFO] [stderr]    |
[INFO] [stderr] 28 |         let help = "--help".to_string();
[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 0.05s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/alias_extractor-16cc4f668aabca28
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] running `"docker" "inspect" "3d3d54b19f4f2028523e6efb3e786b0382e800c99730a278ba9086fe5c93a7f5"`
[INFO] running `"docker" "rm" "-f" "3d3d54b19f4f2028523e6efb3e786b0382e800c99730a278ba9086fe5c93a7f5"`
[INFO] [stdout] 3d3d54b19f4f2028523e6efb3e786b0382e800c99730a278ba9086fe5c93a7f5