[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 master#62efba8a050c64249dab942951bb28f710208bc8 for pr-90799
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fbata-1%2Frust-lesson" "/workspace/builds/worker-6/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-6/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/bata-1/rust-lesson on toolchain 62efba8a050c64249dab942951bb28f710208bc8
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+62efba8a050c64249dab942951bb28f710208bc8" "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-6/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" "+62efba8a050c64249dab942951bb28f710208bc8" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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" "+62efba8a050c64249dab942951bb28f710208bc8" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 85408d6f2488ee88c4ab8ec41a98c4f2a9f50f24bda185d0d4625d1c4bbeab30
[INFO] running `Command { std: "docker" "start" "-a" "85408d6f2488ee88c4ab8ec41a98c4f2a9f50f24bda185d0d4625d1c4bbeab30", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "85408d6f2488ee88c4ab8ec41a98c4f2a9f50f24bda185d0d4625d1c4bbeab30", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "85408d6f2488ee88c4ab8ec41a98c4f2a9f50f24bda185d0d4625d1c4bbeab30", kill_on_drop: false }`
[INFO] [stdout] 85408d6f2488ee88c4ab8ec41a98c4f2a9f50f24bda185d0d4625d1c4bbeab30
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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" "+62efba8a050c64249dab942951bb28f710208bc8" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] e426fc8116a6fe469ff58a6182514d99a94cf645591703bef3198f1f01d3f23a
[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" "e426fc8116a6fe469ff58a6182514d99a94cf645591703bef3198f1f01d3f23a", 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 dev [unoptimized + debuginfo] target(s) in 0.95s
[INFO] running `Command { std: "docker" "inspect" "e426fc8116a6fe469ff58a6182514d99a94cf645591703bef3198f1f01d3f23a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e426fc8116a6fe469ff58a6182514d99a94cf645591703bef3198f1f01d3f23a", kill_on_drop: false }`
[INFO] [stdout] e426fc8116a6fe469ff58a6182514d99a94cf645591703bef3198f1f01d3f23a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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" "+62efba8a050c64249dab942951bb28f710208bc8" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] cbdf7d281c2d9f7492836b625bd0a03f90a04d3918e263a18fa3eef0527a5871
[INFO] running `Command { std: "docker" "start" "-a" "cbdf7d281c2d9f7492836b625bd0a03f90a04d3918e263a18fa3eef0527a5871", 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 0.75s
[INFO] running `Command { std: "docker" "inspect" "cbdf7d281c2d9f7492836b625bd0a03f90a04d3918e263a18fa3eef0527a5871", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "cbdf7d281c2d9f7492836b625bd0a03f90a04d3918e263a18fa3eef0527a5871", kill_on_drop: false }`
[INFO] [stdout] cbdf7d281c2d9f7492836b625bd0a03f90a04d3918e263a18fa3eef0527a5871
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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" "+62efba8a050c64249dab942951bb28f710208bc8" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] c0eb018a96f78605b5c97726910334c3a4f4c4a48b630351bf679507955400ee
[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" "c0eb018a96f78605b5c97726910334c3a4f4c4a48b630351bf679507955400ee", kill_on_drop: false }`
[INFO] [stdout] 
[INFO] [stderr] warning: unused variable: `linux`
[INFO] [stdout] running 0 tests
[INFO] [stderr]  --> src/enums.rs:8:9
[INFO] [stdout] 
[INFO] [stderr]   |
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stderr] 8 |     let linux = OS::Linux(1991, String::from("Linus"));
[INFO] [stdout] 
[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 0.02s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/rust_lesson-b56eea27ab0d8bb4)
[INFO] running `Command { std: "docker" "inspect" "c0eb018a96f78605b5c97726910334c3a4f4c4a48b630351bf679507955400ee", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c0eb018a96f78605b5c97726910334c3a4f4c4a48b630351bf679507955400ee", kill_on_drop: false }`
[INFO] [stdout] c0eb018a96f78605b5c97726910334c3a4f4c4a48b630351bf679507955400ee