[INFO] cloning repository https://github.com/cheesekon/rust-practice
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/cheesekon/rust-practice" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fcheesekon%2Frust-practice", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fcheesekon%2Frust-practice'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 35ef4c25a036cc5449e8c52709fb3b16c96802b5
[INFO] testing cheesekon/rust-practice against try#8262275854dc0e5381c9d42d56257d94932c5a87 for pr-90799
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fcheesekon%2Frust-practice" "/workspace/builds/worker-10/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-10/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/cheesekon/rust-practice on toolchain 8262275854dc0e5381c9d42d56257d94932c5a87
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+8262275854dc0e5381c9d42d56257d94932c5a87" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/cheesekon/rust-practice
[INFO] finished tweaking git repo https://github.com/cheesekon/rust-practice
[INFO] tweaked toml for git repo https://github.com/cheesekon/rust-practice written to /workspace/builds/worker-10/source/Cargo.toml
[INFO] crate git repo https://github.com/cheesekon/rust-practice already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+8262275854dc0e5381c9d42d56257d94932c5a87" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+8262275854dc0e5381c9d42d56257d94932c5a87" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 18fe734a2b2c17f58597cc82d5c070bbca34ab0255efbcdb5057938239e5e297
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "18fe734a2b2c17f58597cc82d5c070bbca34ab0255efbcdb5057938239e5e297", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "18fe734a2b2c17f58597cc82d5c070bbca34ab0255efbcdb5057938239e5e297", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "18fe734a2b2c17f58597cc82d5c070bbca34ab0255efbcdb5057938239e5e297", kill_on_drop: false }`
[INFO] [stdout] 18fe734a2b2c17f58597cc82d5c070bbca34ab0255efbcdb5057938239e5e297
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/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" "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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+8262275854dc0e5381c9d42d56257d94932c5a87" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] d23bd493fce27aee69de62f81325baa93277d7b1216f371ddbfad3d7f318e4f4
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "d23bd493fce27aee69de62f81325baa93277d7b1216f371ddbfad3d7f318e4f4", kill_on_drop: false }`
[INFO] [stderr]    Compiling homework v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: variant is never constructed: `Red`
[INFO] [stdout]   --> src/lib.rs:32:3
[INFO] [stdout]    |
[INFO] [stdout] 32 |   Red,
[INFO] [stdout]    |   ^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Green`
[INFO] [stdout]   --> src/lib.rs:33:3
[INFO] [stdout]    |
[INFO] [stdout] 33 |   Green,
[INFO] [stdout]    |   ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Yellow`
[INFO] [stdout]   --> src/lib.rs:34:3
[INFO] [stdout]    |
[INFO] [stdout] 34 |   Yellow
[INFO] [stdout]    |   ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.02s
[INFO] running `Command { std: "docker" "inspect" "d23bd493fce27aee69de62f81325baa93277d7b1216f371ddbfad3d7f318e4f4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d23bd493fce27aee69de62f81325baa93277d7b1216f371ddbfad3d7f318e4f4", kill_on_drop: false }`
[INFO] [stdout] d23bd493fce27aee69de62f81325baa93277d7b1216f371ddbfad3d7f318e4f4
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/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" "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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+8262275854dc0e5381c9d42d56257d94932c5a87" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 67ad3365a260f510e18a7834a98812a1999156f259709024891f3fd878707611
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "67ad3365a260f510e18a7834a98812a1999156f259709024891f3fd878707611", kill_on_drop: false }`
[INFO] [stdout] warning: variant is never constructed: `Red`
[INFO] [stdout]   --> src/lib.rs:32:3
[INFO] [stdout]    |
[INFO] [stdout] 32 |   Red,
[INFO] [stdout]    |   ^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling homework v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: variant is never constructed: `Green`
[INFO] [stdout]   --> src/lib.rs:33:3
[INFO] [stdout]    |
[INFO] [stdout] 33 |   Green,
[INFO] [stdout]    |   ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Yellow`
[INFO] [stdout]   --> src/lib.rs:34:3
[INFO] [stdout]    |
[INFO] [stdout] 34 |   Yellow
[INFO] [stdout]    |   ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Red`
[INFO] [stdout]   --> src/lib.rs:32:3
[INFO] [stdout]    |
[INFO] [stdout] 32 |   Red,
[INFO] [stdout]    |   ^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Green`
[INFO] [stdout]   --> src/lib.rs:33:3
[INFO] [stdout]    |
[INFO] [stdout] 33 |   Green,
[INFO] [stdout]    |   ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Yellow`
[INFO] [stdout]   --> src/lib.rs:34:3
[INFO] [stdout]    |
[INFO] [stdout] 34 |   Yellow
[INFO] [stdout]    |   ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 1.03s
[INFO] running `Command { std: "docker" "inspect" "67ad3365a260f510e18a7834a98812a1999156f259709024891f3fd878707611", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "67ad3365a260f510e18a7834a98812a1999156f259709024891f3fd878707611", kill_on_drop: false }`
[INFO] [stdout] 67ad3365a260f510e18a7834a98812a1999156f259709024891f3fd878707611
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/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" "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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+8262275854dc0e5381c9d42d56257d94932c5a87" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 05d454f9f4d5765bdaeaf8ce888af334970dcf0b0e98cbb98029e4f327c1c8b6
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "05d454f9f4d5765bdaeaf8ce888af334970dcf0b0e98cbb98029e4f327c1c8b6", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr] warning: variant is never constructed: `Red`
[INFO] [stderr]   --> src/lib.rs:32:3
[INFO] [stderr]    |
[INFO] [stderr] 32 |   Red,
[INFO] [stderr]    |   ^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Green`
[INFO] [stderr]   --> src/lib.rs:33:3
[INFO] [stderr]    |
[INFO] [stderr] 33 |   Green,
[INFO] [stderr]    |   ^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Yellow`
[INFO] [stderr]   --> src/lib.rs:34:3
[INFO] [stderr]    |
[INFO] [stderr] 34 |   Yellow
[INFO] [stderr]    |   ^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: `homework` (lib) generated 3 warnings
[INFO] [stderr] warning: `homework` (lib test) generated 3 warnings (3 duplicates)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 1.11s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/homework-d1a5ec52f50958db)
[INFO] [stdout] 
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/homework-a87c77d695239a57)
[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] [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] [stderr]    Doc-tests homework
[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" "05d454f9f4d5765bdaeaf8ce888af334970dcf0b0e98cbb98029e4f327c1c8b6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "05d454f9f4d5765bdaeaf8ce888af334970dcf0b0e98cbb98029e4f327c1c8b6", kill_on_drop: false }`
[INFO] [stdout] 05d454f9f4d5765bdaeaf8ce888af334970dcf0b0e98cbb98029e4f327c1c8b6