Dec 04 13:07:23.727 INFO checking nkmazur/cert_machine against try#1df97983eb2057dc6a8f7eb364e263b51ae23230 for pr-56481
Dec 04 13:07:23.727 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56481/worker-4/try#1df97983eb2057dc6a8f7eb364e263b51ae23230:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-4/pr-56481/try#1df97983eb2057dc6a8f7eb364e263b51ae23230:/source:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/source" "-e" "USER_ID=1000" "-e" "CMD=cargo +1df97983eb2057dc6a8f7eb364e263b51ae23230-alt check --frozen --all --all-targets" "-e" "CARGO_TARGET_DIR=/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/cargo-home" "-e" "RUSTUP_HOME=/rustup-home" "-m" "1536M" "--network" "none" "crater"`
Dec 04 13:07:24.292 INFO [stdout] 51c1e9c65c04f9efbcd4abcdafccc2987fe416e98291c0aa221a7d604d122ccb
Dec 04 13:07:24.297 INFO running `"docker" "start" "-a" "51c1e9c65c04f9efbcd4abcdafccc2987fe416e98291c0aa221a7d604d122ccb"`
Dec 04 13:07:26.535 INFO [stderr] usermod: no changes
Dec 04 13:07:26.711 INFO [stderr]    Compiling syn v0.14.9
Dec 04 13:07:26.711 INFO [stderr]    Compiling syn v0.15.12
Dec 04 13:07:40.888 INFO [stderr]    Compiling gumdrop_derive v0.5.0
Dec 04 13:07:42.403 INFO [stderr]    Compiling serde_derive v1.0.80
Dec 04 13:07:49.323 INFO [stderr]     Checking gumdrop v0.5.0
Dec 04 13:07:59.896 INFO [stderr]     Checking cert_machine v0.1.0 (/source)
Dec 04 13:08:03.379 INFO [stderr] warning: variant is never constructed: `EtcdServer`
Dec 04 13:08:03.379 INFO [stderr]   --> src/kubernetes_certs.rs:31:5
Dec 04 13:08:03.379 INFO [stderr]    |
Dec 04 13:08:03.379 INFO [stderr] 31 |     EtcdServer(&'a Instance),
Dec 04 13:08:03.379 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^
Dec 04 13:08:03.379 INFO [stderr]    |
Dec 04 13:08:03.379 INFO [stderr]    = note: #[warn(dead_code)] on by default
Dec 04 13:08:03.379 INFO [stderr] 
Dec 04 13:08:03.379 INFO [stderr] warning: variant is never constructed: `Kubelet`
Dec 04 13:08:03.379 INFO [stderr]   --> src/kubernetes_certs.rs:32:5
Dec 04 13:08:03.379 INFO [stderr]    |
Dec 04 13:08:03.379 INFO [stderr] 32 |     Kubelet(&'a Instance),
Dec 04 13:08:03.379 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^
Dec 04 13:08:03.379 INFO [stderr] 
Dec 04 13:08:03.570 INFO [stderr] warning: variant is never constructed: `EtcdServer`
Dec 04 13:08:03.570 INFO [stderr]   --> src/kubernetes_certs.rs:31:5
Dec 04 13:08:03.571 INFO [stderr]    |
Dec 04 13:08:03.571 INFO [stderr] 31 |     EtcdServer(&'a Instance),
Dec 04 13:08:03.571 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^
Dec 04 13:08:03.572 INFO [stderr]    |
Dec 04 13:08:03.572 INFO [stderr]    = note: #[warn(dead_code)] on by default
Dec 04 13:08:03.572 INFO [stderr] 
Dec 04 13:08:03.572 INFO [stderr] warning: variant is never constructed: `Kubelet`
Dec 04 13:08:03.572 INFO [stderr]   --> src/kubernetes_certs.rs:32:5
Dec 04 13:08:03.572 INFO [stderr]    |
Dec 04 13:08:03.573 INFO [stderr] 32 |     Kubelet(&'a Instance),
Dec 04 13:08:03.573 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^
Dec 04 13:08:03.573 INFO [stderr] 
Dec 04 13:08:03.641 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 37.06s
Dec 04 13:08:03.647 INFO [stderr] su: No module specific data is present
Dec 04 13:08:04.805 INFO running `"docker" "inspect" "51c1e9c65c04f9efbcd4abcdafccc2987fe416e98291c0aa221a7d604d122ccb"`
Dec 04 13:08:05.203 INFO running `"docker" "rm" "-f" "51c1e9c65c04f9efbcd4abcdafccc2987fe416e98291c0aa221a7d604d122ccb"`
Dec 04 13:08:05.563 INFO [stdout] 51c1e9c65c04f9efbcd4abcdafccc2987fe416e98291c0aa221a7d604d122ccb