[INFO] cloning repository https://github.com/teppeee/rust-di-practice
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/teppeee/rust-di-practice" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fteppeee%2Frust-di-practice", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fteppeee%2Frust-di-practice'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 1c88a15e043633c1f1350d5e0d6f07ce581e4da0
[INFO] checking teppeee/rust-di-practice/1c88a15e043633c1f1350d5e0d6f07ce581e4da0 against master#36e2b8a3a7aad93f8a92db6d254b746aa94ed6da for pr-151822
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fteppeee%2Frust-di-practice" "/workspace/builds/worker-0-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-0-tc1/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/teppeee/rust-di-practice
[INFO] finished tweaking git repo https://github.com/teppeee/rust-di-practice
[INFO] tweaked toml for git repo https://github.com/teppeee/rust-di-practice written to /workspace/builds/worker-0-tc1/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/teppeee/rust-di-practice on toolchain 36e2b8a3a7aad93f8a92db6d254b746aa94ed6da
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+36e2b8a3a7aad93f8a92db6d254b746aa94ed6da" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/teppeee/rust-di-practice 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" "+36e2b8a3a7aad93f8a92db6d254b746aa94ed6da" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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@sha256:29356a839a4d14451438f794ce8414e707d72405f44418718d724d22562fe786" "/opt/rustwide/cargo-home/bin/cargo" "+36e2b8a3a7aad93f8a92db6d254b746aa94ed6da" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 8114fad15910ca54ed4ee09266f2611ae6f15e8a3baa6fe912be0b4ef9ae0698
[INFO] running `Command { std: "docker" "start" "-a" "8114fad15910ca54ed4ee09266f2611ae6f15e8a3baa6fe912be0b4ef9ae0698", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "8114fad15910ca54ed4ee09266f2611ae6f15e8a3baa6fe912be0b4ef9ae0698", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8114fad15910ca54ed4ee09266f2611ae6f15e8a3baa6fe912be0b4ef9ae0698", kill_on_drop: false }`
[INFO] [stdout] 8114fad15910ca54ed4ee09266f2611ae6f15e8a3baa6fe912be0b4ef9ae0698
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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@sha256:29356a839a4d14451438f794ce8414e707d72405f44418718d724d22562fe786" "/opt/rustwide/cargo-home/bin/cargo" "+36e2b8a3a7aad93f8a92db6d254b746aa94ed6da" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] a3d41ee743c3c54b0dc867ed2320d7220a72a62896c54afc4ee1b3a13b9d700a
[INFO] running `Command { std: "docker" "start" "-a" "a3d41ee743c3c54b0dc867ed2320d7220a72a62896c54afc4ee1b3a13b9d700a", kill_on_drop: false }`
[INFO] [stderr]     Checking rust-di-practice v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: struct `Mock` is never constructed
[INFO] [stdout]    --> src/main.rs:114:8
[INFO] [stdout]     |
[INFO] [stdout] 114 | struct Mock {}
[INFO] [stdout]     |        ^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `MockRepo` is never constructed
[INFO] [stdout]    --> src/main.rs:129:8
[INFO] [stdout]     |
[INFO] [stdout] 129 | struct MockRepo {}
[INFO] [stdout]     |        ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused borrow that must be used
[INFO] [stdout]   --> src/main.rs:36:9
[INFO] [stdout]    |
[INFO] [stdout] 36 |         &self.connection;
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^ the borrow produces a value
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_must_use)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]    |
[INFO] [stdout] 36 |         let _ = &self.connection;
[INFO] [stdout]    |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused borrow that must be used
[INFO] [stdout]   --> src/main.rs:59:9
[INFO] [stdout]    |
[INFO] [stdout] 59 |         &self.connection;
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^ the borrow produces a value
[INFO] [stdout]    |
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]    |
[INFO] [stdout] 59 |         let _ = &self.connection;
[INFO] [stdout]    |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused borrow that must be used
[INFO] [stdout]   --> src/main.rs:36:9
[INFO] [stdout]    |
[INFO] [stdout] 36 |         &self.connection;
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^ the borrow produces a value
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_must_use)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]    |
[INFO] [stdout] 36 |         let _ = &self.connection;
[INFO] [stdout]    |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused borrow that must be used
[INFO] [stdout]   --> src/main.rs:59:9
[INFO] [stdout]    |
[INFO] [stdout] 59 |         &self.connection;
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^ the borrow produces a value
[INFO] [stdout]    |
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]    |
[INFO] [stdout] 59 |         let _ = &self.connection;
[INFO] [stdout]    |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.12s
[INFO] running `Command { std: "docker" "inspect" "a3d41ee743c3c54b0dc867ed2320d7220a72a62896c54afc4ee1b3a13b9d700a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a3d41ee743c3c54b0dc867ed2320d7220a72a62896c54afc4ee1b3a13b9d700a", kill_on_drop: false }`
[INFO] [stdout] a3d41ee743c3c54b0dc867ed2320d7220a72a62896c54afc4ee1b3a13b9d700a