[INFO] cloning repository https://github.com/cjhoward92/rustdb
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/cjhoward92/rustdb" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fcjhoward92%2Frustdb", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fcjhoward92%2Frustdb'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 5494ccb643b234c8065ad71a4baf8f0321bd5a04
[INFO] checking cjhoward92/rustdb against try#b09a3e9a7a0ff7efb269ec0c13dcc0fd3cedcf6b for pr-82781
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fcjhoward92%2Frustdb" "/workspace/builds/worker-1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/cjhoward92/rustdb on toolchain b09a3e9a7a0ff7efb269ec0c13dcc0fd3cedcf6b
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+b09a3e9a7a0ff7efb269ec0c13dcc0fd3cedcf6b" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/cjhoward92/rustdb
[INFO] finished tweaking git repo https://github.com/cjhoward92/rustdb
[INFO] tweaked toml for git repo https://github.com/cjhoward92/rustdb written to /workspace/builds/worker-1/source/Cargo.toml
[INFO] crate git repo https://github.com/cjhoward92/rustdb already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+b09a3e9a7a0ff7efb269ec0c13dcc0fd3cedcf6b" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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:f2f6bcd4b43ebee4e173f653a26493129bdb64017c85f916b780ca7fbdbaa79d" "/opt/rustwide/cargo-home/bin/cargo" "+b09a3e9a7a0ff7efb269ec0c13dcc0fd3cedcf6b" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] dd7f527de88436fd996b2483789b21b80ea8a45da6fd57d053a879c342105377
[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" "dd7f527de88436fd996b2483789b21b80ea8a45da6fd57d053a879c342105377", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "dd7f527de88436fd996b2483789b21b80ea8a45da6fd57d053a879c342105377", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "dd7f527de88436fd996b2483789b21b80ea8a45da6fd57d053a879c342105377", kill_on_drop: false }`
[INFO] [stdout] dd7f527de88436fd996b2483789b21b80ea8a45da6fd57d053a879c342105377
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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=forbid" "-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:f2f6bcd4b43ebee4e173f653a26493129bdb64017c85f916b780ca7fbdbaa79d" "/opt/rustwide/cargo-home/bin/cargo" "+b09a3e9a7a0ff7efb269ec0c13dcc0fd3cedcf6b" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] a0e7d8888898403275b80e0b9d602c25d699008b34b97a8fc3eab02c08ef7de6
[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" "a0e7d8888898403275b80e0b9d602c25d699008b34b97a8fc3eab02c08ef7de6", kill_on_drop: false }`
[INFO] [stderr]     Checking rustdblib v0.1.0 (/opt/rustwide/workdir/rustdblib)
[INFO] [stdout] warning: constant is never used: `MAX_KEY_LENGTH`
[INFO] [stdout]  --> rustdblib/src/key.rs:5:1
[INFO] [stdout]   |
[INFO] [stdout] 5 | const MAX_KEY_LENGTH: usize = 255;
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `NullKey`
[INFO] [stdout]   --> rustdblib/src/key.rs:22:3
[INFO] [stdout]    |
[INFO] [stdout] 22 |   NullKey,
[INFO] [stdout]    |   ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `BlankKey`
[INFO] [stdout]   --> rustdblib/src/key.rs:23:3
[INFO] [stdout]    |
[INFO] [stdout] 23 |   BlankKey,
[INFO] [stdout]    |   ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant is never used: `MAX_KEY_LENGTH`
[INFO] [stdout]  --> rustdblib/src/key.rs:5:1
[INFO] [stdout]   |
[INFO] [stdout] 5 | const MAX_KEY_LENGTH: usize = 255;
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `NullKey`
[INFO] [stdout]   --> rustdblib/src/key.rs:22:3
[INFO] [stdout]    |
[INFO] [stdout] 22 |   NullKey,
[INFO] [stdout]    |   ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `ExceedsMaxLength`
[INFO] [stdout]   --> rustdblib/src/key.rs:24:3
[INFO] [stdout]    |
[INFO] [stdout] 24 |   ExceedsMaxLength(usize),
[INFO] [stdout]    |   ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `validate_key`
[INFO] [stdout]   --> rustdblib/src/key.rs:37:4
[INFO] [stdout]    |
[INFO] [stdout] 37 | fn validate_key(key: &Key) -> Result<bool, KeyError> {
[INFO] [stdout]    |    ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `BlankKey`
[INFO] [stdout]   --> rustdblib/src/key.rs:23:3
[INFO] [stdout]    |
[INFO] [stdout] 23 |   BlankKey,
[INFO] [stdout]    |   ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `ExceedsMaxLength`
[INFO] [stdout]   --> rustdblib/src/key.rs:24:3
[INFO] [stdout]    |
[INFO] [stdout] 24 |   ExceedsMaxLength(usize),
[INFO] [stdout]    |   ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `validate_key`
[INFO] [stdout]   --> rustdblib/src/key.rs:37:4
[INFO] [stdout]    |
[INFO] [stdout] 37 | fn validate_key(key: &Key) -> Result<bool, KeyError> {
[INFO] [stdout]    |    ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 5 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 5 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Checking rustdb v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.12s
[INFO] running `Command { std: "docker" "inspect" "a0e7d8888898403275b80e0b9d602c25d699008b34b97a8fc3eab02c08ef7de6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a0e7d8888898403275b80e0b9d602c25d699008b34b97a8fc3eab02c08ef7de6", kill_on_drop: false }`
[INFO] [stdout] a0e7d8888898403275b80e0b9d602c25d699008b34b97a8fc3eab02c08ef7de6