[INFO] cloning repository https://github.com/bata-1/rust-lesson
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/bata-1/rust-lesson" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fbata-1%2Frust-lesson", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fbata-1%2Frust-lesson'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 8c83ad5458b62277e5b41194bf05a638e094634f
[INFO] testing bata-1/rust-lesson against beta-2022-04-10 for beta-1.61-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fbata-1%2Frust-lesson" "/workspace/builds/worker-17/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-17/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/bata-1/rust-lesson on toolchain beta-2022-04-10
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-04-10" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/bata-1/rust-lesson
[INFO] finished tweaking git repo https://github.com/bata-1/rust-lesson
[INFO] tweaked toml for git repo https://github.com/bata-1/rust-lesson written to /workspace/builds/worker-17/source/Cargo.toml
[INFO] crate git repo https://github.com/bata-1/rust-lesson already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-04-10" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-17/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-17/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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-04-10" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] a2bda1a1faf6d6885f9ba6dd5744785cfeb04f7dd7a6974e634d4dbe5672d1cf
[INFO] running `Command { std: "docker" "start" "-a" "a2bda1a1faf6d6885f9ba6dd5744785cfeb04f7dd7a6974e634d4dbe5672d1cf", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "a2bda1a1faf6d6885f9ba6dd5744785cfeb04f7dd7a6974e634d4dbe5672d1cf", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a2bda1a1faf6d6885f9ba6dd5744785cfeb04f7dd7a6974e634d4dbe5672d1cf", kill_on_drop: false }`
[INFO] [stdout] a2bda1a1faf6d6885f9ba6dd5744785cfeb04f7dd7a6974e634d4dbe5672d1cf
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-17/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-17/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=warn" "-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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-04-10" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 5b64893554680cea35620d9ba05f1ec96d3d5fa0457a9e359b9a3ba46c1e307c
[INFO] running `Command { std: "docker" "start" "-a" "5b64893554680cea35620d9ba05f1ec96d3d5fa0457a9e359b9a3ba46c1e307c", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling rust-lesson v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `linux`
[INFO] [stdout]  --> src/enums.rs:8:9
[INFO] [stdout]   |
[INFO] [stdout] 8 |     let linux = OS::Linux(1991, String::from("Linus"));
[INFO] [stdout]   |         ^^^^^ help: if this is intentional, prefix it with an underscore: `_linux`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Windows`
[INFO] [stdout]  --> src/enums.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 |     Windows(u32, String),
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Mac`
[INFO] [stdout]  --> src/enums.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 |     Mac(u32, String),
[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 2.46s
[INFO] running `Command { std: "docker" "inspect" "5b64893554680cea35620d9ba05f1ec96d3d5fa0457a9e359b9a3ba46c1e307c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5b64893554680cea35620d9ba05f1ec96d3d5fa0457a9e359b9a3ba46c1e307c", kill_on_drop: false }`
[INFO] [stdout] 5b64893554680cea35620d9ba05f1ec96d3d5fa0457a9e359b9a3ba46c1e307c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-17/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-17/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=warn" "-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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-04-10" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 08c67422f1f70c6bad1fd97e9bb0c14cc31f0a0502224e16b53f426393966af7
[INFO] running `Command { std: "docker" "start" "-a" "08c67422f1f70c6bad1fd97e9bb0c14cc31f0a0502224e16b53f426393966af7", kill_on_drop: false }`
[INFO] [stderr]    Compiling rust-lesson v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `linux`
[INFO] [stdout]  --> src/enums.rs:8:9
[INFO] [stdout]   |
[INFO] [stdout] 8 |     let linux = OS::Linux(1991, String::from("Linus"));
[INFO] [stdout]   |         ^^^^^ help: if this is intentional, prefix it with an underscore: `_linux`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Windows`
[INFO] [stdout]  --> src/enums.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 |     Windows(u32, String),
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Mac`
[INFO] [stdout]  --> src/enums.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 |     Mac(u32, String),
[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 0.31s
[INFO] [stderr]   Executable unittests src/main.rs (/opt/rustwide/target/debug/deps/rust_lesson-55e828c148ce5787)
[INFO] running `Command { std: "docker" "inspect" "08c67422f1f70c6bad1fd97e9bb0c14cc31f0a0502224e16b53f426393966af7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "08c67422f1f70c6bad1fd97e9bb0c14cc31f0a0502224e16b53f426393966af7", kill_on_drop: false }`
[INFO] [stdout] 08c67422f1f70c6bad1fd97e9bb0c14cc31f0a0502224e16b53f426393966af7
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-17/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-17/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=warn" "-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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-04-10" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 619f333010ad1b8b42c0da0a62af18029156cb03b52d98eac39d1671529be40f
[INFO] running `Command { std: "docker" "start" "-a" "619f333010ad1b8b42c0da0a62af18029156cb03b52d98eac39d1671529be40f", kill_on_drop: false }`
[INFO] [stderr] warning: unused variable: `linux`
[INFO] [stderr]  --> src/enums.rs:8:9
[INFO] [stderr]   |
[INFO] [stderr] 8 |     let linux = OS::Linux(1991, String::from("Linus"));
[INFO] [stderr]   |         ^^^^^ help: if this is intentional, prefix it with an underscore: `_linux`
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Windows`
[INFO] [stderr]  --> src/enums.rs:2:5
[INFO] [stderr]   |
[INFO] [stderr] 2 |     Windows(u32, String),
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Mac`
[INFO] [stderr]  --> src/enums.rs:3:5
[INFO] [stderr]   |
[INFO] [stderr] 3 |     Mac(u32, String),
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: `rust-lesson` (bin "rust-lesson" test) generated 3 warnings
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stdout] 
[INFO] [stderr]      Running unittests src/main.rs (/opt/rustwide/target/debug/deps/rust_lesson-55e828c148ce5787)
[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" "619f333010ad1b8b42c0da0a62af18029156cb03b52d98eac39d1671529be40f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "619f333010ad1b8b42c0da0a62af18029156cb03b52d98eac39d1671529be40f", kill_on_drop: false }`
[INFO] [stdout] 619f333010ad1b8b42c0da0a62af18029156cb03b52d98eac39d1671529be40f