[INFO] fetching crate cardinal-base 0.2.39...
[INFO] checking cardinal-base-0.2.39 against master#5dbf4069dc98bbbca98dd600a65f50c258fbfd56 for pr-148477-1
[INFO] extracting crate cardinal-base 0.2.39 into /workspace/builds/worker-4-tc1/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-4-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate cardinal-base 0.2.39 on toolchain 5dbf4069dc98bbbca98dd600a65f50c258fbfd56
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+5dbf4069dc98bbbca98dd600a65f50c258fbfd56" "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" "+5dbf4069dc98bbbca98dd600a65f50c258fbfd56" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
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[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+5dbf4069dc98bbbca98dd600a65f50c258fbfd56" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] d979c000f6b8e99e41d9c5cd1dc559bb9c5d3cf278f63a5a19074e2b3d18feba
[INFO] running `Command { std: "docker" "start" "-a" "d979c000f6b8e99e41d9c5cd1dc559bb9c5d3cf278f63a5a19074e2b3d18feba", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "d979c000f6b8e99e41d9c5cd1dc559bb9c5d3cf278f63a5a19074e2b3d18feba", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d979c000f6b8e99e41d9c5cd1dc559bb9c5d3cf278f63a5a19074e2b3d18feba", kill_on_drop: false }`
[INFO] [stdout] d979c000f6b8e99e41d9c5cd1dc559bb9c5d3cf278f63a5a19074e2b3d18feba
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+5dbf4069dc98bbbca98dd600a65f50c258fbfd56" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] a4696351919a5e47dedca6dfcb413396864d7ecd7892836fa295cfadbe6671bc
[INFO] running `Command { std: "docker" "start" "-a" "a4696351919a5e47dedca6dfcb413396864d7ecd7892836fa295cfadbe6671bc", kill_on_drop: false }`
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[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 49s
[INFO] running `Command { std: "docker" "inspect" "a4696351919a5e47dedca6dfcb413396864d7ecd7892836fa295cfadbe6671bc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a4696351919a5e47dedca6dfcb413396864d7ecd7892836fa295cfadbe6671bc", kill_on_drop: false }`
[INFO] [stdout] a4696351919a5e47dedca6dfcb413396864d7ecd7892836fa295cfadbe6671bc