[INFO] cloning repository https://github.com/soph-em/rust-memory-db
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/soph-em/rust-memory-db" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsoph-em%2Frust-memory-db", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsoph-em%2Frust-memory-db'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 69af2964d6d404403151ccb7fc8bc0b7bf90c62b
[INFO] checking soph-em/rust-memory-db against master#75530e9f72a1990ed2305e16fd51d02f47048f12 for pr-135899
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsoph-em%2Frust-memory-db" "/workspace/builds/worker-0-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-0-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/soph-em/rust-memory-db on toolchain 75530e9f72a1990ed2305e16fd51d02f47048f12
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+75530e9f72a1990ed2305e16fd51d02f47048f12" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/soph-em/rust-memory-db
[INFO] finished tweaking git repo https://github.com/soph-em/rust-memory-db
[INFO] tweaked toml for git repo https://github.com/soph-em/rust-memory-db written to /workspace/builds/worker-0-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/soph-em/rust-memory-db 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" "+75530e9f72a1990ed2305e16fd51d02f47048f12" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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@sha256:6475c868a6d27846ca172efb246699580b64b57a5b3744ef73949e850a31b38a" "/opt/rustwide/cargo-home/bin/cargo" "+75530e9f72a1990ed2305e16fd51d02f47048f12" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 1482bfa30cd9221498f0f33192389cfe38bc0e9bb0c1d95144b06cd89a1fc6d6
[INFO] running `Command { std: "docker" "start" "-a" "1482bfa30cd9221498f0f33192389cfe38bc0e9bb0c1d95144b06cd89a1fc6d6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "1482bfa30cd9221498f0f33192389cfe38bc0e9bb0c1d95144b06cd89a1fc6d6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1482bfa30cd9221498f0f33192389cfe38bc0e9bb0c1d95144b06cd89a1fc6d6", kill_on_drop: false }`
[INFO] [stdout] 1482bfa30cd9221498f0f33192389cfe38bc0e9bb0c1d95144b06cd89a1fc6d6
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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@sha256:6475c868a6d27846ca172efb246699580b64b57a5b3744ef73949e850a31b38a" "/opt/rustwide/cargo-home/bin/cargo" "+75530e9f72a1990ed2305e16fd51d02f47048f12" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 4db4d42acca9d2caa42a4093087c1640925eba4b72ff4046997d486797ceb391
[INFO] running `Command { std: "docker" "start" "-a" "4db4d42acca9d2caa42a4093087c1640925eba4b72ff4046997d486797ceb391", kill_on_drop: false }`
[INFO] [stderr]    Compiling anyhow v1.0.87
[INFO] [stderr]     Checking memory-db v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: variant `Int` is never constructed
[INFO] [stdout]   --> src/main.rs:76:5
[INFO] [stdout]    |
[INFO] [stdout] 74 | enum Value {
[INFO] [stdout]    |      ----- variant in this enum
[INFO] [stdout] 75 |     String(String),
[INFO] [stdout] 76 |     Int(i32),
[INFO] [stdout]    |     ^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant `Int` is never constructed
[INFO] [stdout]   --> src/main.rs:76:5
[INFO] [stdout]    |
[INFO] [stdout] 74 | enum Value {
[INFO] [stdout]    |      ----- variant in this enum
[INFO] [stdout] 75 |     String(String),
[INFO] [stdout] 76 |     Int(i32),
[INFO] [stdout]    |     ^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.83s
[INFO] running `Command { std: "docker" "inspect" "4db4d42acca9d2caa42a4093087c1640925eba4b72ff4046997d486797ceb391", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4db4d42acca9d2caa42a4093087c1640925eba4b72ff4046997d486797ceb391", kill_on_drop: false }`
[INFO] [stdout] 4db4d42acca9d2caa42a4093087c1640925eba4b72ff4046997d486797ceb391