[INFO] cloning repository https://github.com/perfectbogus/basic-in-memory-kv-store
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/perfectbogus/basic-in-memory-kv-store" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fperfectbogus%2Fbasic-in-memory-kv-store", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fperfectbogus%2Fbasic-in-memory-kv-store'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 1d3da6a8da8c7b1a3140fc12c7ba3ebd473dbd95
[INFO] checking perfectbogus/basic-in-memory-kv-store against master#8365fcb2b840c95eeb0bc377af8bd498fad22245 for pr-145605
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fperfectbogus%2Fbasic-in-memory-kv-store" "/workspace/builds/worker-2-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2-tc1/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/perfectbogus/basic-in-memory-kv-store
[INFO] finished tweaking git repo https://github.com/perfectbogus/basic-in-memory-kv-store
[INFO] tweaked toml for git repo https://github.com/perfectbogus/basic-in-memory-kv-store written to /workspace/builds/worker-2-tc1/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/perfectbogus/basic-in-memory-kv-store on toolchain 8365fcb2b840c95eeb0bc377af8bd498fad22245
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+8365fcb2b840c95eeb0bc377af8bd498fad22245" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/perfectbogus/basic-in-memory-kv-store already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+8365fcb2b840c95eeb0bc377af8bd498fad22245" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+8365fcb2b840c95eeb0bc377af8bd498fad22245" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 8b434028ca685cd8a61623367ba1dca67c5983b0dce1ab1f6dcff305dae5d5de
[INFO] running `Command { std: "docker" "start" "-a" "8b434028ca685cd8a61623367ba1dca67c5983b0dce1ab1f6dcff305dae5d5de", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "8b434028ca685cd8a61623367ba1dca67c5983b0dce1ab1f6dcff305dae5d5de", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8b434028ca685cd8a61623367ba1dca67c5983b0dce1ab1f6dcff305dae5d5de", kill_on_drop: false }`
[INFO] [stdout] 8b434028ca685cd8a61623367ba1dca67c5983b0dce1ab1f6dcff305dae5d5de
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/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" "RUSTDOCFLAGS=--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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+8365fcb2b840c95eeb0bc377af8bd498fad22245" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 8d74333a57c1c81b63eb1f4f0eb9ba6bc76b7c99ce9e94d4803c8ed6f547bb9a
[INFO] running `Command { std: "docker" "start" "-a" "8d74333a57c1c81b63eb1f4f0eb9ba6bc76b7c99ce9e94d4803c8ed6f547bb9a", kill_on_drop: false }`
[INFO] [stderr]     Checking basic-in-memory-kv-store v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: variants `SerializationError` and `StorageError` are never constructed
[INFO] [stdout]  --> src/main.rs:8:5
[INFO] [stdout]   |
[INFO] [stdout] 6 | enum DbError {
[INFO] [stdout]   |      ------- variants in this enum
[INFO] [stdout] 7 |     KeyNotFound,
[INFO] [stdout] 8 |     SerializationError(String),
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 9 |     StorageError(String),
[INFO] [stdout]   |     ^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `DbError` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variants `SerializationError` and `StorageError` are never constructed
[INFO] [stdout]  --> src/main.rs:8:5
[INFO] [stdout]   |
[INFO] [stdout] 6 | enum DbError {
[INFO] [stdout]   |      ------- variants in this enum
[INFO] [stdout] 7 |     KeyNotFound,
[INFO] [stdout] 8 |     SerializationError(String),
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 9 |     StorageError(String),
[INFO] [stdout]   |     ^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `DbError` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.35s
[INFO] running `Command { std: "docker" "inspect" "8d74333a57c1c81b63eb1f4f0eb9ba6bc76b7c99ce9e94d4803c8ed6f547bb9a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8d74333a57c1c81b63eb1f4f0eb9ba6bc76b7c99ce9e94d4803c8ed6f547bb9a", kill_on_drop: false }`
[INFO] [stdout] 8d74333a57c1c81b63eb1f4f0eb9ba6bc76b7c99ce9e94d4803c8ed6f547bb9a