[INFO] fetching crate seagull 0.1.0...
[INFO] checking seagull-0.1.0 against master#eb10639928a2781cf0a12440007fbcc1e3a6888f for pr-127827-1
[INFO] extracting crate seagull 0.1.0 into /workspace/builds/worker-4-tc1/source
[INFO] validating manifest of crates.io crate seagull 0.1.0 on toolchain eb10639928a2781cf0a12440007fbcc1e3a6888f
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+eb10639928a2781cf0a12440007fbcc1e3a6888f" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate seagull 0.1.0
[INFO] finished tweaking crates.io crate seagull 0.1.0
[INFO] tweaked toml for crates.io crate seagull 0.1.0 written to /workspace/builds/worker-4-tc1/source/Cargo.toml
[INFO] crate crates.io crate seagull 0.1.0 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" "+eb10639928a2781cf0a12440007fbcc1e3a6888f" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
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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:dff56e7819e73ed36160586b3445e93eb0be776c16704aeeded9c3fb668b2384" "/opt/rustwide/cargo-home/bin/cargo" "+eb10639928a2781cf0a12440007fbcc1e3a6888f" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] a4a79c496e93f69b9e7b169079d97a20a743c46c576d745df0e75f30ce12dd93
[INFO] running `Command { std: "docker" "start" "-a" "a4a79c496e93f69b9e7b169079d97a20a743c46c576d745df0e75f30ce12dd93", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "a4a79c496e93f69b9e7b169079d97a20a743c46c576d745df0e75f30ce12dd93", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a4a79c496e93f69b9e7b169079d97a20a743c46c576d745df0e75f30ce12dd93", kill_on_drop: false }`
[INFO] [stdout] a4a79c496e93f69b9e7b169079d97a20a743c46c576d745df0e75f30ce12dd93
[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:dff56e7819e73ed36160586b3445e93eb0be776c16704aeeded9c3fb668b2384" "/opt/rustwide/cargo-home/bin/cargo" "+eb10639928a2781cf0a12440007fbcc1e3a6888f" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 37e1965091f620c6d7adfd6cb287dc85e6e8926e745344cf7f5f061f95a0281a
[INFO] running `Command { std: "docker" "start" "-a" "37e1965091f620c6d7adfd6cb287dc85e6e8926e745344cf7f5f061f95a0281a", kill_on_drop: false }`
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[INFO] [stderr]     Checking seagull v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]    Compiling rusty-hook v0.11.1
[INFO] [stdout] warning: unused borrow that must be used
[INFO] [stdout]   --> tests/utils.rs:32:9
[INFO] [stdout]    |
[INFO] [stdout] 32 |         &self.client.batch_execute(sql);
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ the borrow produces a value
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]    |
[INFO] [stdout] 32 |         let _ = &self.client.batch_execute(sql);
[INFO] [stdout]    |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused borrow that must be used
[INFO] [stdout]   --> tests/utils.rs:32:9
[INFO] [stdout]    |
[INFO] [stdout] 32 |         &self.client.batch_execute(sql);
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ the borrow produces a value
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]    |
[INFO] [stdout] 32 |         let _ = &self.client.batch_execute(sql);
[INFO] [stdout]    |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `connection_string` is never read
[INFO] [stdout]   --> tests/utils.rs:10:9
[INFO] [stdout]    |
[INFO] [stdout] 9  | pub struct TestDatabase {
[INFO] [stdout]    |            ------------ field in this struct
[INFO] [stdout] 10 |     pub connection_string: String,
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused borrow that must be used
[INFO] [stdout]   --> tests/utils.rs:32:9
[INFO] [stdout]    |
[INFO] [stdout] 32 |         &self.client.batch_execute(sql);
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ the borrow produces a value
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]    |
[INFO] [stdout] 32 |         let _ = &self.client.batch_execute(sql);
[INFO] [stdout]    |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 27.19s
[INFO] running `Command { std: "docker" "inspect" "37e1965091f620c6d7adfd6cb287dc85e6e8926e745344cf7f5f061f95a0281a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "37e1965091f620c6d7adfd6cb287dc85e6e8926e745344cf7f5f061f95a0281a", kill_on_drop: false }`
[INFO] [stdout] 37e1965091f620c6d7adfd6cb287dc85e6e8926e745344cf7f5f061f95a0281a