[INFO] fetching crate rrr 0.0.0...
[INFO] checking rrr-0.0.0 against master#2e6fc425411280c658d852813de01c5157255088 for pr-128013
[INFO] extracting crate rrr 0.0.0 into /workspace/builds/worker-5-tc1/source
[INFO] validating manifest of crates.io crate rrr 0.0.0 on toolchain 2e6fc425411280c658d852813de01c5157255088
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+2e6fc425411280c658d852813de01c5157255088" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate rrr 0.0.0
[INFO] finished tweaking crates.io crate rrr 0.0.0
[INFO] tweaked toml for crates.io crate rrr 0.0.0 written to /workspace/builds/worker-5-tc1/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+2e6fc425411280c658d852813de01c5157255088" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]      Locking 11 packages to latest compatible versions
[INFO] [stderr]       Adding num-rational v0.3.2 (latest: v0.4.2)
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+2e6fc425411280c658d852813de01c5157255088" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr] warning: `default_features` is deprecated in favor of `default-features` and will not work in the 2024 edition
[INFO] [stderr] (in the `num-rational` dependency)
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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:dff56e7819e73ed36160586b3445e93eb0be776c16704aeeded9c3fb668b2384" "/opt/rustwide/cargo-home/bin/cargo" "+2e6fc425411280c658d852813de01c5157255088" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] bf0b7598072bc818edae780245ade6e2edafe7ea4fe19cd64111c3b4ea7ac541
[INFO] running `Command { std: "docker" "start" "-a" "bf0b7598072bc818edae780245ade6e2edafe7ea4fe19cd64111c3b4ea7ac541", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "bf0b7598072bc818edae780245ade6e2edafe7ea4fe19cd64111c3b4ea7ac541", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "bf0b7598072bc818edae780245ade6e2edafe7ea4fe19cd64111c3b4ea7ac541", kill_on_drop: false }`
[INFO] [stdout] bf0b7598072bc818edae780245ade6e2edafe7ea4fe19cd64111c3b4ea7ac541
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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:dff56e7819e73ed36160586b3445e93eb0be776c16704aeeded9c3fb668b2384" "/opt/rustwide/cargo-home/bin/cargo" "+2e6fc425411280c658d852813de01c5157255088" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 20b6bce3f012ee85599320d9f1d61cca2d8b64f74d256cf12d6f6e7f26894efe
[INFO] running `Command { std: "docker" "start" "-a" "20b6bce3f012ee85599320d9f1d61cca2d8b64f74d256cf12d6f6e7f26894efe", kill_on_drop: false }`
[INFO] [stderr] warning: `default_features` is deprecated in favor of `default-features` and will not work in the 2024 edition
[INFO] [stderr] (in the `num-rational` dependency)
[INFO] [stderr]    Compiling num-rational v0.3.2
[INFO] [stderr]     Checking serde v1.0.204
[INFO] [stderr]     Checking rrr v0.0.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: field `settings` is never read
[INFO] [stdout]   --> src/lib.rs:52:5
[INFO] [stdout]    |
[INFO] [stdout] 51 | pub struct RRR {
[INFO] [stdout]    |            --- field in this struct
[INFO] [stdout] 52 |     settings: Settings,
[INFO] [stdout]    |     ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `RRR` 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: field `settings` is never read
[INFO] [stdout]   --> src/lib.rs:52:5
[INFO] [stdout]    |
[INFO] [stdout] 51 | pub struct RRR {
[INFO] [stdout]    |            --- field in this struct
[INFO] [stdout] 52 |     settings: Settings,
[INFO] [stdout]    |     ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `RRR` 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: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 3.42s
[INFO] running `Command { std: "docker" "inspect" "20b6bce3f012ee85599320d9f1d61cca2d8b64f74d256cf12d6f6e7f26894efe", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "20b6bce3f012ee85599320d9f1d61cca2d8b64f74d256cf12d6f6e7f26894efe", kill_on_drop: false }`
[INFO] [stdout] 20b6bce3f012ee85599320d9f1d61cca2d8b64f74d256cf12d6f6e7f26894efe