[INFO] cloning repository https://github.com/mavjs/simpledb.rs
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/mavjs/simpledb.rs" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmavjs%2Fsimpledb.rs", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmavjs%2Fsimpledb.rs'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 1f7674ecfe23e9930b78d6c82ae740630d0f44c3
[INFO] testing mavjs/simpledb.rs 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%2Fmavjs%2Fsimpledb.rs" "/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/mavjs/simpledb.rs 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/mavjs/simpledb.rs
[INFO] finished tweaking git repo https://github.com/mavjs/simpledb.rs
[INFO] tweaked toml for git repo https://github.com/mavjs/simpledb.rs written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] crate git repo https://github.com/mavjs/simpledb.rs 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] f20401d9acd7b2de4a7f16f1a034f2d9c3c991a1645190ff027a10ffd73a509d
[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" "f20401d9acd7b2de4a7f16f1a034f2d9c3c991a1645190ff027a10ffd73a509d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "f20401d9acd7b2de4a7f16f1a034f2d9c3c991a1645190ff027a10ffd73a509d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f20401d9acd7b2de4a7f16f1a034f2d9c3c991a1645190ff027a10ffd73a509d", kill_on_drop: false }`
[INFO] [stdout] f20401d9acd7b2de4a7f16f1a034f2d9c3c991a1645190ff027a10ffd73a509d
[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] 0d0b3dff3f5862f4db230a9edf4f6eddc957bc6b83daed6125d80b8b324d8014
[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" "0d0b3dff3f5862f4db230a9edf4f6eddc957bc6b83daed6125d80b8b324d8014", kill_on_drop: false }`
[INFO] [stderr]    Compiling simpledb v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0004]: non-exhaustive patterns: `&_` not covered
[INFO] [stdout]   --> src/main.rs:23:15
[INFO] [stdout]    |
[INFO] [stdout] 23 |         match command {
[INFO] [stdout]    |               ^^^^^^^ pattern `&_` not covered
[INFO] [stdout]    |
[INFO] [stdout]    = help: ensure that all possible cases are being handled, possibly by adding wildcards or more match arms
[INFO] [stdout]    = note: the matched value is of type `&str`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0004`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `simpledb`
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `Command { std: "docker" "inspect" "0d0b3dff3f5862f4db230a9edf4f6eddc957bc6b83daed6125d80b8b324d8014", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0d0b3dff3f5862f4db230a9edf4f6eddc957bc6b83daed6125d80b8b324d8014", kill_on_drop: false }`
[INFO] [stdout] 0d0b3dff3f5862f4db230a9edf4f6eddc957bc6b83daed6125d80b8b324d8014