[INFO] fetching crate bubble-db 0.1.0...
[INFO] checking bubble-db-0.1.0 against master#40557f6225e337d68c8d4f086557ce54135f5dd9 for pr-158447
[INFO] extracting crate bubble-db 0.1.0 into /workspace/builds/worker-1-tc1/source
[INFO] started tweaking crates.io crate bubble-db 0.1.0
[INFO] finished tweaking crates.io crate bubble-db 0.1.0
[INFO] tweaked toml for crates.io crate bubble-db 0.1.0 written to /workspace/builds/worker-1-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate bubble-db 0.1.0 on toolchain 40557f6225e337d68c8d4f086557ce54135f5dd9
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+40557f6225e337d68c8d4f086557ce54135f5dd9" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate bubble-db 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" "+40557f6225e337d68c8d4f086557ce54135f5dd9" "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-1-tc1/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,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" "-m" "1610612736" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:3a6becf2bc8dde7f3fa57ede90e4f284e72d296796fc446bbb1e2c7cc0530151" "sleep" "infinity", kill_on_drop: false }`
[INFO] [stdout] 27e9ea0d4febbf374cab3d8c041f64dc80fd9ad17cba6243d1c355cda8f52c2a
[INFO] running `Command { std: "docker" "start" "27e9ea0d4febbf374cab3d8c041f64dc80fd9ad17cba6243d1c355cda8f52c2a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-w" "/opt/rustwide/workdir" "--user" "0:0" "27e9ea0d4febbf374cab3d8c041f64dc80fd9ad17cba6243d1c355cda8f52c2a" "/opt/rustwide/cargo-home/bin/cargo" "+40557f6225e337d68c8d4f086557ce54135f5dd9" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "27e9ea0d4febbf374cab3d8c041f64dc80fd9ad17cba6243d1c355cda8f52c2a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-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" "-w" "/opt/rustwide/workdir" "--user" "0:0" "27e9ea0d4febbf374cab3d8c041f64dc80fd9ad17cba6243d1c355cda8f52c2a" "/opt/rustwide/cargo-home/bin/cargo" "+40557f6225e337d68c8d4f086557ce54135f5dd9" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
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[INFO] [stderr]     Checking bubble-db v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `total`
[INFO] [stdout]   --> src/mysql.rs:88:29
[INFO] [stdout]    |
[INFO] [stdout] 88 |                         let total = if neg { -total } else { total };
[INFO] [stdout]    |                             ^^^^^ help: if this is intentional, prefix it with an underscore: `_total`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `total`
[INFO] [stdout]    --> src/mysql.rs:142:29
[INFO] [stdout]     |
[INFO] [stdout] 142 |                         let total = if neg { -total } else { total };
[INFO] [stdout]     |                             ^^^^^ help: if this is intentional, prefix it with an underscore: `_total`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `total`
[INFO] [stdout]   --> src/mysql.rs:88:29
[INFO] [stdout]    |
[INFO] [stdout] 88 |                         let total = if neg { -total } else { total };
[INFO] [stdout]    |                             ^^^^^ help: if this is intentional, prefix it with an underscore: `_total`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `total`
[INFO] [stdout]    --> src/mysql.rs:142:29
[INFO] [stdout]     |
[INFO] [stdout] 142 |                         let total = if neg { -total } else { total };
[INFO] [stdout]     |                             ^^^^^ help: if this is intentional, prefix it with an underscore: `_total`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/sqlite.rs:34:13
[INFO] [stdout]    |
[INFO] [stdout] 34 |         let mut conn = self.conn.lock().await;
[INFO] [stdout]    |             ----^^^^
[INFO] [stdout]    |             |
[INFO] [stdout]    |             help: remove this `mut`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_mut)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/sqlite.rs:34:13
[INFO] [stdout]    |
[INFO] [stdout] 34 |         let mut conn = self.conn.lock().await;
[INFO] [stdout]    |             ----^^^^
[INFO] [stdout]    |             |
[INFO] [stdout]    |             help: remove this `mut`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_mut)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 1m 31s
[INFO] [stderr] warning: the following packages contain code that will be rejected by a future version of Rust: proc-macro-error2 v2.0.1, redis v0.23.3, sqlx-postgres v0.7.2
[INFO] [stderr] note: to see what the problems were, use the option `--future-incompat-report`, or run `cargo report future-incompatibilities --id 2`
[INFO] running `Command { std: "docker" "inspect" "27e9ea0d4febbf374cab3d8c041f64dc80fd9ad17cba6243d1c355cda8f52c2a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "27e9ea0d4febbf374cab3d8c041f64dc80fd9ad17cba6243d1c355cda8f52c2a", kill_on_drop: false }`
[INFO] [stdout] 27e9ea0d4febbf374cab3d8c041f64dc80fd9ad17cba6243d1c355cda8f52c2a
