[INFO] cloning repository https://github.com/2nthony/ms-rust-car-tutorial
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/2nthony/ms-rust-car-tutorial" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2F2nthony%2Fms-rust-car-tutorial", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2F2nthony%2Fms-rust-car-tutorial'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] cd9ef0b8db2ccd855eec57f9dd3686ca76c1a75b
[INFO] testing 2nthony/ms-rust-car-tutorial against master#d98a5da813da67eb189387b8ccfb73cf481275d8+rustflags=-Copt-level=3 for pr-138759
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2F2nthony%2Fms-rust-car-tutorial" "/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/2nthony/ms-rust-car-tutorial
[INFO] finished tweaking git repo https://github.com/2nthony/ms-rust-car-tutorial
[INFO] tweaked toml for git repo https://github.com/2nthony/ms-rust-car-tutorial written to /workspace/builds/worker-0-tc1/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/2nthony/ms-rust-car-tutorial on toolchain d98a5da813da67eb189387b8ccfb73cf481275d8
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+d98a5da813da67eb189387b8ccfb73cf481275d8" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/2nthony/ms-rust-car-tutorial 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" "+d98a5da813da67eb189387b8ccfb73cf481275d8" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+d98a5da813da67eb189387b8ccfb73cf481275d8" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 7624a29dfdb65460a8969665de03cab9382775f3ad09afb9fe66a3b7e3dc23db
[INFO] running `Command { std: "docker" "start" "-a" "7624a29dfdb65460a8969665de03cab9382775f3ad09afb9fe66a3b7e3dc23db", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "7624a29dfdb65460a8969665de03cab9382775f3ad09afb9fe66a3b7e3dc23db", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7624a29dfdb65460a8969665de03cab9382775f3ad09afb9fe66a3b7e3dc23db", kill_on_drop: false }`
[INFO] [stdout] 7624a29dfdb65460a8969665de03cab9382775f3ad09afb9fe66a3b7e3dc23db
[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 -Copt-level=3" "-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+d98a5da813da67eb189387b8ccfb73cf481275d8" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] adcd96ac531c53b808ca75044f21ddb35423d8a85732579184dd54f1befe9a1a
[INFO] running `Command { std: "docker" "start" "-a" "adcd96ac531c53b808ca75044f21ddb35423d8a85732579184dd54f1befe9a1a", kill_on_drop: false }`
[INFO] [stderr]    Compiling car v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `engine`
[INFO] [stdout]   --> src/main.rs:43:13
[INFO] [stdout]    |
[INFO] [stdout] 43 |     let mut engine = Transmission::Manual;
[INFO] [stdout]    |             ^^^^^^ help: if this is intentional, prefix it with an underscore: `_engine`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/main.rs:43:9
[INFO] [stdout]    |
[INFO] [stdout] 43 |     let mut engine = Transmission::Manual;
[INFO] [stdout]    |         ----^^^^^^
[INFO] [stdout]    |         |
[INFO] [stdout]    |         help: remove this `mut`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.93s
[INFO] running `Command { std: "docker" "inspect" "adcd96ac531c53b808ca75044f21ddb35423d8a85732579184dd54f1befe9a1a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "adcd96ac531c53b808ca75044f21ddb35423d8a85732579184dd54f1befe9a1a", kill_on_drop: false }`
[INFO] [stdout] adcd96ac531c53b808ca75044f21ddb35423d8a85732579184dd54f1befe9a1a
[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 -Copt-level=3" "-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+d98a5da813da67eb189387b8ccfb73cf481275d8" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] c9cbf321c3a451cbf5fbe99c1d8212fd25f0d0b40c8cb46a5fbe68cd4bb4e7c7
[INFO] running `Command { std: "docker" "start" "-a" "c9cbf321c3a451cbf5fbe99c1d8212fd25f0d0b40c8cb46a5fbe68cd4bb4e7c7", kill_on_drop: false }`
[INFO] [stderr]    Compiling car v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `engine`
[INFO] [stdout]   --> src/main.rs:43:13
[INFO] [stdout]    |
[INFO] [stdout] 43 |     let mut engine = Transmission::Manual;
[INFO] [stdout]    |             ^^^^^^ help: if this is intentional, prefix it with an underscore: `_engine`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/main.rs:43:9
[INFO] [stdout]    |
[INFO] [stdout] 43 |     let mut engine = Transmission::Manual;
[INFO] [stdout]    |         ----^^^^^^
[INFO] [stdout]    |         |
[INFO] [stdout]    |         help: remove this `mut`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.50s
[INFO] running `Command { std: "docker" "inspect" "c9cbf321c3a451cbf5fbe99c1d8212fd25f0d0b40c8cb46a5fbe68cd4bb4e7c7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c9cbf321c3a451cbf5fbe99c1d8212fd25f0d0b40c8cb46a5fbe68cd4bb4e7c7", kill_on_drop: false }`
[INFO] [stdout] c9cbf321c3a451cbf5fbe99c1d8212fd25f0d0b40c8cb46a5fbe68cd4bb4e7c7
[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 -Copt-level=3" "-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+d98a5da813da67eb189387b8ccfb73cf481275d8" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 10f43af40c42b780a64fec479d49e7b5cb48804936c6014bb11d928d4ce60954
[INFO] running `Command { std: "docker" "start" "-a" "10f43af40c42b780a64fec479d49e7b5cb48804936c6014bb11d928d4ce60954", kill_on_drop: false }`
[INFO] [stderr] warning: unused variable: `engine`
[INFO] [stderr]   --> src/main.rs:43:13
[INFO] [stderr]    |
[INFO] [stderr] 43 |     let mut engine = Transmission::Manual;
[INFO] [stderr]    |             ^^^^^^ help: if this is intentional, prefix it with an underscore: `_engine`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/main.rs:43:9
[INFO] [stderr]    |
[INFO] [stderr] 43 |     let mut engine = Transmission::Manual;
[INFO] [stderr]    |         ----^^^^^^
[INFO] [stderr]    |         |
[INFO] [stderr]    |         help: remove this `mut`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_mut)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: `car` (bin "car" test) generated 2 warnings (run `cargo fix --bin "car" --tests` to apply 1 suggestion)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.03s
[INFO] [stderr]      Running unittests src/main.rs (/opt/rustwide/target/debug/deps/car-f0d7feb5cf738cde)
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "10f43af40c42b780a64fec479d49e7b5cb48804936c6014bb11d928d4ce60954", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "10f43af40c42b780a64fec479d49e7b5cb48804936c6014bb11d928d4ce60954", kill_on_drop: false }`
[INFO] [stdout] 10f43af40c42b780a64fec479d49e7b5cb48804936c6014bb11d928d4ce60954
