[INFO] cloning repository https://github.com/7-falseparfait/exc-2
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/7-falseparfait/exc-2" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2F7-falseparfait%2Fexc-2", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2F7-falseparfait%2Fexc-2'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 177158a4cb8ef17a4e33fab5c6ac1044a12b9b11
[INFO] testing 7-falseparfait/exc-2 against master#733b47ea4b1b86216f14ef56e49440c33933f230+rustflags=-Copt-level=3 for pr-138759
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2F7-falseparfait%2Fexc-2" "/workspace/builds/worker-0-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-0-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/7-falseparfait/exc-2
[INFO] finished tweaking git repo https://github.com/7-falseparfait/exc-2
[INFO] tweaked toml for git repo https://github.com/7-falseparfait/exc-2 written to /workspace/builds/worker-0-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/7-falseparfait/exc-2 on toolchain 733b47ea4b1b86216f14ef56e49440c33933f230
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+733b47ea4b1b86216f14ef56e49440c33933f230" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/7-falseparfait/exc-2 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" "+733b47ea4b1b86216f14ef56e49440c33933f230" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/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" "+733b47ea4b1b86216f14ef56e49440c33933f230" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] e97060fe61aedb2f699b538e8d85c88ac531b0e7af2121bcbd8c4a7a3cc37375
[INFO] running `Command { std: "docker" "start" "-a" "e97060fe61aedb2f699b538e8d85c88ac531b0e7af2121bcbd8c4a7a3cc37375", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "e97060fe61aedb2f699b538e8d85c88ac531b0e7af2121bcbd8c4a7a3cc37375", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e97060fe61aedb2f699b538e8d85c88ac531b0e7af2121bcbd8c4a7a3cc37375", kill_on_drop: false }`
[INFO] [stdout] e97060fe61aedb2f699b538e8d85c88ac531b0e7af2121bcbd8c4a7a3cc37375
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/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" "+733b47ea4b1b86216f14ef56e49440c33933f230" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] cf956d3b8508f04f5653a3ffdfd6efd146420a487c88b8c217f378350b38e549
[INFO] running `Command { std: "docker" "start" "-a" "cf956d3b8508f04f5653a3ffdfd6efd146420a487c88b8c217f378350b38e549", kill_on_drop: false }`
[INFO] [stderr]    Compiling exc-2 v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: variant `Ready` is never constructed
[INFO] [stdout]  --> src/main.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | enum DeviceStatus {
[INFO] [stdout]   |      ------------ variant in this enum
[INFO] [stdout] 2 |     Ready,
[INFO] [stdout]   |     ^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variants `Low` and `Blocked` are never constructed
[INFO] [stdout]   --> src/main.rs:9:5
[INFO] [stdout]    |
[INFO] [stdout] 7  | enum Task {
[INFO] [stdout]    |      ---- variants in this enum
[INFO] [stdout] 8  |     High(u8, String),
[INFO] [stdout] 9  |     Low(String),
[INFO] [stdout]    |     ^^^
[INFO] [stdout] 10 |     Blocked,
[INFO] [stdout]    |     ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant `Wait` is never constructed
[INFO] [stdout]   --> src/main.rs:14:5
[INFO] [stdout]    |
[INFO] [stdout] 12 | enum Command {
[INFO] [stdout]    |      ------- variant in this enum
[INFO] [stdout] 13 |     Execute(String),
[INFO] [stdout] 14 |     Wait,
[INFO] [stdout]    |     ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.69s
[INFO] running `Command { std: "docker" "inspect" "cf956d3b8508f04f5653a3ffdfd6efd146420a487c88b8c217f378350b38e549", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "cf956d3b8508f04f5653a3ffdfd6efd146420a487c88b8c217f378350b38e549", kill_on_drop: false }`
[INFO] [stdout] cf956d3b8508f04f5653a3ffdfd6efd146420a487c88b8c217f378350b38e549
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/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" "+733b47ea4b1b86216f14ef56e49440c33933f230" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 2923d593171174dac717f8bd67273638cd2d16b71c9012284c67f73767c9006b
[INFO] running `Command { std: "docker" "start" "-a" "2923d593171174dac717f8bd67273638cd2d16b71c9012284c67f73767c9006b", kill_on_drop: false }`
[INFO] [stderr]    Compiling exc-2 v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: variant `Ready` is never constructed
[INFO] [stdout]  --> src/main.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | enum DeviceStatus {
[INFO] [stdout]   |      ------------ variant in this enum
[INFO] [stdout] 2 |     Ready,
[INFO] [stdout]   |     ^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variants `Low` and `Blocked` are never constructed
[INFO] [stdout]   --> src/main.rs:9:5
[INFO] [stdout]    |
[INFO] [stdout] 7  | enum Task {
[INFO] [stdout]    |      ---- variants in this enum
[INFO] [stdout] 8  |     High(u8, String),
[INFO] [stdout] 9  |     Low(String),
[INFO] [stdout]    |     ^^^
[INFO] [stdout] 10 |     Blocked,
[INFO] [stdout]    |     ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant `Wait` is never constructed
[INFO] [stdout]   --> src/main.rs:14:5
[INFO] [stdout]    |
[INFO] [stdout] 12 | enum Command {
[INFO] [stdout]    |      ------- variant in this enum
[INFO] [stdout] 13 |     Execute(String),
[INFO] [stdout] 14 |     Wait,
[INFO] [stdout]    |     ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.58s
[INFO] running `Command { std: "docker" "inspect" "2923d593171174dac717f8bd67273638cd2d16b71c9012284c67f73767c9006b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2923d593171174dac717f8bd67273638cd2d16b71c9012284c67f73767c9006b", kill_on_drop: false }`
[INFO] [stdout] 2923d593171174dac717f8bd67273638cd2d16b71c9012284c67f73767c9006b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/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" "+733b47ea4b1b86216f14ef56e49440c33933f230" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 7b5d598b314e018c38738d9f2d3c42f9a81b612c6a8ac5e384f2e40834f84322
[INFO] running `Command { std: "docker" "start" "-a" "7b5d598b314e018c38738d9f2d3c42f9a81b612c6a8ac5e384f2e40834f84322", kill_on_drop: false }`
[INFO] [stderr] warning: variant `Ready` is never constructed
[INFO] [stderr]  --> src/main.rs:2:5
[INFO] [stderr]   |
[INFO] [stderr] 1 | enum DeviceStatus {
[INFO] [stderr]   |      ------------ variant in this enum
[INFO] [stderr] 2 |     Ready,
[INFO] [stderr]   |     ^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variants `Low` and `Blocked` are never constructed
[INFO] [stderr]   --> src/main.rs:9:5
[INFO] [stderr]    |
[INFO] [stderr] 7  | enum Task {
[INFO] [stderr]    |      ---- variants in this enum
[INFO] [stderr] 8  |     High(u8, String),
[INFO] [stderr] 9  |     Low(String),
[INFO] [stderr]    |     ^^^
[INFO] [stderr] 10 |     Blocked,
[INFO] [stderr]    |     ^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant `Wait` is never constructed
[INFO] [stderr]   --> src/main.rs:14:5
[INFO] [stderr]    |
[INFO] [stderr] 12 | enum Command {
[INFO] [stderr]    |      ------- variant in this enum
[INFO] [stderr] 13 |     Execute(String),
[INFO] [stderr] 14 |     Wait,
[INFO] [stderr]    |     ^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: `exc-2` (bin "exc-2" test) generated 3 warnings
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.03s
[INFO] [stderr]      Running unittests src/main.rs (/opt/rustwide/target/debug/deps/exc_2-b8bf6caafffefd17)
[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" "7b5d598b314e018c38738d9f2d3c42f9a81b612c6a8ac5e384f2e40834f84322", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7b5d598b314e018c38738d9f2d3c42f9a81b612c6a8ac5e384f2e40834f84322", kill_on_drop: false }`
[INFO] [stdout] 7b5d598b314e018c38738d9f2d3c42f9a81b612c6a8ac5e384f2e40834f84322
