[INFO] cloning repository https://github.com/GoodWork0903/rust-mongodb-optimist
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/GoodWork0903/rust-mongodb-optimist" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FGoodWork0903%2Frust-mongodb-optimist", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FGoodWork0903%2Frust-mongodb-optimist'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] c008a3bc5c27b1eca50bdda9f14360d41d09e6e8
[INFO] checking GoodWork0903/rust-mongodb-optimist/c008a3bc5c27b1eca50bdda9f14360d41d09e6e8 against master#826b673412d2f579e7865b6f26bc9771c6d3b097 for pr-133397
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FGoodWork0903%2Frust-mongodb-optimist" "/workspace/builds/worker-5-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-5-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/GoodWork0903/rust-mongodb-optimist on toolchain 826b673412d2f579e7865b6f26bc9771c6d3b097
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+826b673412d2f579e7865b6f26bc9771c6d3b097" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/GoodWork0903/rust-mongodb-optimist
[INFO] finished tweaking git repo https://github.com/GoodWork0903/rust-mongodb-optimist
[INFO] tweaked toml for git repo https://github.com/GoodWork0903/rust-mongodb-optimist written to /workspace/builds/worker-5-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/GoodWork0903/rust-mongodb-optimist 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" "+826b673412d2f579e7865b6f26bc9771c6d3b097" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
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[INFO] running `Command { std: "docker" "start" "-a" "b24d63df197a29250edd1b22d10a2bda0c498cca047d9ca4ab4bd236124279ac", kill_on_drop: false }`
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[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@sha256:4a844ea9eb2546a2d2c7022eacef16ef2e8229c7fbb2c7d4d55a9ceca922f72d" "/opt/rustwide/cargo-home/bin/cargo" "+826b673412d2f579e7865b6f26bc9771c6d3b097" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
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[INFO] [stdout] warning: unused import: `debug`
[INFO] [stdout]  --> src/db.rs:2:11
[INFO] [stdout]   |
[INFO] [stdout] 2 | use log::{debug, info};
[INFO] [stdout]   |           ^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `UpdateOptions` and `bson`
[INFO] [stdout]  --> src/db.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 4 |     bson,
[INFO] [stdout]   |     ^^^^
[INFO] [stdout] 5 |     bson::{doc, Document},
[INFO] [stdout] 6 |     options::{InsertManyOptions, UpdateOptions, DeleteOptions},
[INFO] [stdout]   |                                  ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `debug`
[INFO] [stdout]  --> src/db.rs:2:11
[INFO] [stdout]   |
[INFO] [stdout] 2 | use log::{debug, info};
[INFO] [stdout]   |           ^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `UpdateOptions` and `bson`
[INFO] [stdout]  --> src/db.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 4 |     bson,
[INFO] [stdout]   |     ^^^^
[INFO] [stdout] 5 |     bson::{doc, Document},
[INFO] [stdout] 6 |     options::{InsertManyOptions, UpdateOptions, DeleteOptions},
[INFO] [stdout]   |                                  ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `delete_options`
[INFO] [stdout]   --> src/db.rs:54:9
[INFO] [stdout]    |
[INFO] [stdout] 54 |     let delete_options = DeleteOptions::builder().build();
[INFO] [stdout]    |         ^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_delete_options`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `result`
[INFO] [stdout]   --> src/db.rs:56:9
[INFO] [stdout]    |
[INFO] [stdout] 56 |     let result = spawn_blocking(move || {
[INFO] [stdout]    |         ^^^^^^ help: if this is intentional, prefix it with an underscore: `_result`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `delete_options`
[INFO] [stdout]   --> src/db.rs:54:9
[INFO] [stdout]    |
[INFO] [stdout] 54 |     let delete_options = DeleteOptions::builder().build();
[INFO] [stdout]    |         ^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_delete_options`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `result`
[INFO] [stdout]   --> src/db.rs:56:9
[INFO] [stdout]    |
[INFO] [stdout] 56 |     let result = spawn_blocking(move || {
[INFO] [stdout]    |         ^^^^^^ help: if this is intentional, prefix it with an underscore: `_result`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [optimized + debuginfo] target(s) in 55.28s
[INFO] running `Command { std: "docker" "inspect" "598cb8fc35a72d3995ddc3ca598aea8c39ca8eabdb56536a337395f05b2143e9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "598cb8fc35a72d3995ddc3ca598aea8c39ca8eabdb56536a337395f05b2143e9", kill_on_drop: false }`
[INFO] [stdout] 598cb8fc35a72d3995ddc3ca598aea8c39ca8eabdb56536a337395f05b2143e9