Dec 19 11:45:38.621 INFO checking nkmazur/cert_machine against master#d99a320cba42f661aebfa1293b7b2ec3603dda75 for pr-56955
Dec 19 11:45:38.621 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56955/worker-2/master#d99a320cba42f661aebfa1293b7b2ec3603dda75:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-56955/sources/master#d99a320cba42f661aebfa1293b7b2ec3603dda75/gh/nkmazur/cert_machine:/opt/crater/workdir:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/opt/crater/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/opt/crater/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/crater/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/crater/cargo-home" "-e" "RUSTUP_HOME=/opt/crater/rustup-home" "-w" "/opt/crater/workdir" "-m" "1536M" "--network" "none" "rustops/crates-build-env" "/opt/crater/cargo-home/bin/cargo" "+d99a320cba42f661aebfa1293b7b2ec3603dda75-alt" "check" "--frozen" "--all" "--all-targets"`
Dec 19 11:45:39.040 INFO [stdout] 307c52e0fa1880aa0f3f9ca212feff90b3e4e8c4c46182f0c85926c15081ead0
Dec 19 11:45:39.042 INFO running `"docker" "start" "-a" "307c52e0fa1880aa0f3f9ca212feff90b3e4e8c4c46182f0c85926c15081ead0"`
Dec 19 11:45:40.913 INFO [stderr]    Compiling syn v0.14.9
Dec 19 11:45:49.987 INFO [stderr]    Compiling gumdrop_derive v0.5.0
Dec 19 11:45:54.316 INFO [stderr]     Checking gumdrop v0.5.0
Dec 19 11:45:54.724 INFO [stderr]     Checking cert_machine v0.1.0 (/opt/crater/workdir)
Dec 19 11:45:57.212 INFO [stderr] warning: variant is never constructed: `EtcdServer`
Dec 19 11:45:57.212 INFO [stderr]   --> src/kubernetes_certs.rs:31:5
Dec 19 11:45:57.212 INFO [stderr]    |
Dec 19 11:45:57.212 INFO [stderr] 31 |     EtcdServer(&'a Instance),
Dec 19 11:45:57.212 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^
Dec 19 11:45:57.212 INFO [stderr]    |
Dec 19 11:45:57.212 INFO [stderr]    = note: #[warn(dead_code)] on by default
Dec 19 11:45:57.212 INFO [stderr] 
Dec 19 11:45:57.212 INFO [stderr] warning: variant is never constructed: `Kubelet`
Dec 19 11:45:57.212 INFO [stderr]   --> src/kubernetes_certs.rs:32:5
Dec 19 11:45:57.212 INFO [stderr]    |
Dec 19 11:45:57.212 INFO [stderr] 32 |     Kubelet(&'a Instance),
Dec 19 11:45:57.212 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^
Dec 19 11:45:57.212 INFO [stderr] 
Dec 19 11:45:57.336 INFO [stderr] warning: variant is never constructed: `EtcdServer`
Dec 19 11:45:57.337 INFO [stderr]   --> src/kubernetes_certs.rs:31:5
Dec 19 11:45:57.337 INFO [stderr]    |
Dec 19 11:45:57.337 INFO [stderr] 31 |     EtcdServer(&'a Instance),
Dec 19 11:45:57.337 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^
Dec 19 11:45:57.337 INFO [stderr]    |
Dec 19 11:45:57.337 INFO [stderr]    = note: #[warn(dead_code)] on by default
Dec 19 11:45:57.337 INFO [stderr] 
Dec 19 11:45:57.337 INFO [stderr] warning: variant is never constructed: `Kubelet`
Dec 19 11:45:57.337 INFO [stderr]   --> src/kubernetes_certs.rs:32:5
Dec 19 11:45:57.338 INFO [stderr]    |
Dec 19 11:45:57.338 INFO [stderr] 32 |     Kubelet(&'a Instance),
Dec 19 11:45:57.338 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^
Dec 19 11:45:57.338 INFO [stderr] 
Dec 19 11:45:57.408 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 16.62s
Dec 19 11:45:58.012 INFO running `"docker" "inspect" "307c52e0fa1880aa0f3f9ca212feff90b3e4e8c4c46182f0c85926c15081ead0"`
Dec 19 11:45:58.312 INFO running `"docker" "rm" "-f" "307c52e0fa1880aa0f3f9ca212feff90b3e4e8c4c46182f0c85926c15081ead0"`
Dec 19 11:45:58.596 INFO [stdout] 307c52e0fa1880aa0f3f9ca212feff90b3e4e8c4c46182f0c85926c15081ead0