[INFO] updating cached repository https://github.com/eriksvedang/UnifierInRust
[INFO] running `Command { std: "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", kill_on_drop: false }`
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 1046fadca4a7452538b4437bc5d796e657d338f9
[INFO] testing eriksvedang/UnifierInRust against 1.45.2 for beta-1.46-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Feriksvedang%2FUnifierInRust" "/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/eriksvedang/UnifierInRust on toolchain 1.45.2
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.45.2" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/eriksvedang/UnifierInRust
[INFO] finished tweaking git repo https://github.com/eriksvedang/UnifierInRust
[INFO] tweaked toml for git repo https://github.com/eriksvedang/UnifierInRust written to /workspace/builds/worker-12/source/Cargo.toml
[INFO] crate git repo https://github.com/eriksvedang/UnifierInRust already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.45.2" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env@sha256:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+1.45.2" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 4e4057542a991eefae9367b25a6721a143bbe61ed71f54c7a1327c26418abd0b
[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" "4e4057542a991eefae9367b25a6721a143bbe61ed71f54c7a1327c26418abd0b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "4e4057542a991eefae9367b25a6721a143bbe61ed71f54c7a1327c26418abd0b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4e4057542a991eefae9367b25a6721a143bbe61ed71f54c7a1327c26418abd0b", kill_on_drop: false }`
[INFO] [stdout] 4e4057542a991eefae9367b25a6721a143bbe61ed71f54c7a1327c26418abd0b
[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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env@sha256:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+1.45.2" "build" "--frozen" "--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] 817b99ee47e29285d077d84a0bb52fa4d204042b7331663f7c2197a34ada2579
[INFO] running `Command { std: "docker" "start" "-a" "817b99ee47e29285d077d84a0bb52fa4d204042b7331663f7c2197a34ada2579", kill_on_drop: false }`
[INFO] [stderr]    Compiling unifier_in_rust v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: use of deprecated item 'std::slice::<impl [T]>::connect': renamed to join
[INFO] [stdout]   --> src/main.rs:59:55
[INFO] [stdout]    |
[INFO] [stdout] 59 |                 write!(f, "[{}]", expressions_strings.connect(", "))
[INFO] [stdout]    |                                                       ^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated item 'std::slice::<impl [T]>::connect': renamed to join
[INFO] [stdout]    --> src/main.rs:111:41
[INFO] [stdout]     |
[INFO] [stdout] 111 |     let all_bindings = bindings_strings.connect(", ");
[INFO] [stdout]     |                                         ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.21s
[INFO] running `Command { std: "docker" "inspect" "817b99ee47e29285d077d84a0bb52fa4d204042b7331663f7c2197a34ada2579", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "817b99ee47e29285d077d84a0bb52fa4d204042b7331663f7c2197a34ada2579", kill_on_drop: false }`
[INFO] [stdout] 817b99ee47e29285d077d84a0bb52fa4d204042b7331663f7c2197a34ada2579
[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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env@sha256:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+1.45.2" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] e686deb22e2de4cc60735e266f37f9489dc9b6c98e827f3d068c51173b0a1ea1
[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" "e686deb22e2de4cc60735e266f37f9489dc9b6c98e827f3d068c51173b0a1ea1", kill_on_drop: false }`
[INFO] [stderr]    Compiling unifier_in_rust v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: use of deprecated item 'std::slice::<impl [T]>::connect': renamed to join
[INFO] [stdout]   --> src/main.rs:59:55
[INFO] [stdout]    |
[INFO] [stdout] 59 |                 write!(f, "[{}]", expressions_strings.connect(", "))
[INFO] [stdout]    |                                                       ^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated item 'std::slice::<impl [T]>::connect': renamed to join
[INFO] [stdout]    --> src/main.rs:111:41
[INFO] [stdout]     |
[INFO] [stdout] 111 |     let all_bindings = bindings_strings.connect(", ");
[INFO] [stdout]     |                                         ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.87s
[INFO] running `Command { std: "docker" "inspect" "e686deb22e2de4cc60735e266f37f9489dc9b6c98e827f3d068c51173b0a1ea1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e686deb22e2de4cc60735e266f37f9489dc9b6c98e827f3d068c51173b0a1ea1", kill_on_drop: false }`
[INFO] [stdout] e686deb22e2de4cc60735e266f37f9489dc9b6c98e827f3d068c51173b0a1ea1
[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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env@sha256:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+1.45.2" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 21bb8121a28ffa73a9a77eda79e2acf1cfef2bf8301ae464001e4f1828ff6f92
[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" "21bb8121a28ffa73a9a77eda79e2acf1cfef2bf8301ae464001e4f1828ff6f92", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr] warning: use of deprecated item 'std::slice::<impl [T]>::connect': renamed to join
[INFO] [stderr]   --> src/main.rs:59:55
[INFO] [stderr]    |
[INFO] [stderr] 59 |                 write!(f, "[{}]", expressions_strings.connect(", "))
[INFO] [stderr]    |                                                       ^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(deprecated)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'std::slice::<impl [T]>::connect': renamed to join
[INFO] [stderr]    --> src/main.rs:111:41
[INFO] [stderr]     |
[INFO] [stderr] 111 |     let all_bindings = bindings_strings.connect(", ");
[INFO] [stderr]     |                                         ^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: 2 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/unifier_in_rust-9008de67a69810ee
[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 `Command { std: "docker" "inspect" "21bb8121a28ffa73a9a77eda79e2acf1cfef2bf8301ae464001e4f1828ff6f92", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "21bb8121a28ffa73a9a77eda79e2acf1cfef2bf8301ae464001e4f1828ff6f92", kill_on_drop: false }`
[INFO] [stdout] 21bb8121a28ffa73a9a77eda79e2acf1cfef2bf8301ae464001e4f1828ff6f92