[INFO] fetching crate cardinal-base 0.2.39...
[INFO] checking cardinal-base-0.2.39 against try#84addd32a13fa2d3f62fe5d99031611147b7fb13 for pr-147565
[INFO] extracting crate cardinal-base 0.2.39 into /workspace/builds/worker-3-tc2/source
[INFO] started tweaking crates.io crate cardinal-base 0.2.39
[INFO] finished tweaking crates.io crate cardinal-base 0.2.39
[INFO] tweaked toml for crates.io crate cardinal-base 0.2.39 written to /workspace/builds/worker-3-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate cardinal-base 0.2.39 on toolchain 84addd32a13fa2d3f62fe5d99031611147b7fb13
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+84addd32a13fa2d3f62fe5d99031611147b7fb13" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate cardinal-base 0.2.39 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" "+84addd32a13fa2d3f62fe5d99031611147b7fb13" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+84addd32a13fa2d3f62fe5d99031611147b7fb13" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 6cbaa7a9d1bf1695ee8330e2479c0f8394a7a9d5aa23337b566f197613eca94f
[INFO] running `Command { std: "docker" "start" "-a" "6cbaa7a9d1bf1695ee8330e2479c0f8394a7a9d5aa23337b566f197613eca94f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "6cbaa7a9d1bf1695ee8330e2479c0f8394a7a9d5aa23337b566f197613eca94f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6cbaa7a9d1bf1695ee8330e2479c0f8394a7a9d5aa23337b566f197613eca94f", kill_on_drop: false }`
[INFO] [stdout] 6cbaa7a9d1bf1695ee8330e2479c0f8394a7a9d5aa23337b566f197613eca94f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+84addd32a13fa2d3f62fe5d99031611147b7fb13" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] a1e4f4185a8fce9295bf79467e716aa4fb427a2a9f4fc5295acbecae1d641fc4
[INFO] running `Command { std: "docker" "start" "-a" "a1e4f4185a8fce9295bf79467e716aa4fb427a2a9f4fc5295acbecae1d641fc4", kill_on_drop: false }`
[INFO] [stderr]    Compiling serde_core v1.0.227
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[INFO] [stderr]     Checking cardinal-base v0.2.39 (/opt/rustwide/workdir)
[INFO] [stdout] warning: field `dsn` is never read
[INFO] [stdout]    --> src/context.rs:231:9
[INFO] [stdout]     |
[INFO] [stdout] 230 |     struct Db {
[INFO] [stdout]     |            -- field in this struct
[INFO] [stdout] 231 |         dsn: String,
[INFO] [stdout]     |         ^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `Db` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]     = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]    --> src/context.rs:379:14
[INFO] [stdout]     |
[INFO] [stdout] 379 |     struct A(Arc<B>);
[INFO] [stdout]     |            - ^^^^^^
[INFO] [stdout]     |            |
[INFO] [stdout]     |            field in this struct
[INFO] [stdout]     |
[INFO] [stdout]     = help: consider removing this field
[INFO] [stdout]     = note: `A` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]    --> src/context.rs:381:14
[INFO] [stdout]     |
[INFO] [stdout] 381 |     struct B(Arc<A>);
[INFO] [stdout]     |            - ^^^^^^
[INFO] [stdout]     |            |
[INFO] [stdout]     |            field in this struct
[INFO] [stdout]     |
[INFO] [stdout]     = help: consider removing this field
[INFO] [stdout]     = note: `B` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 3m 26s
[INFO] running `Command { std: "docker" "inspect" "a1e4f4185a8fce9295bf79467e716aa4fb427a2a9f4fc5295acbecae1d641fc4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a1e4f4185a8fce9295bf79467e716aa4fb427a2a9f4fc5295acbecae1d641fc4", kill_on_drop: false }`
[INFO] [stdout] a1e4f4185a8fce9295bf79467e716aa4fb427a2a9f4fc5295acbecae1d641fc4