Dec 17 18:40:42.149 INFO checking nkmazur/cert_machine against master#96d1334e567237b1507cd277938e7ae2de75ff51 for pr-54252
Dec 17 18:40:42.149 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-54252/worker-4/master#96d1334e567237b1507cd277938e7ae2de75ff51:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-54252/sources/master#96d1334e567237b1507cd277938e7ae2de75ff51/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" "+96d1334e567237b1507cd277938e7ae2de75ff51-alt" "check" "--frozen" "--all" "--all-targets"`
Dec 17 18:40:42.702 INFO [stdout] 2054a3e8ed290d2f16597c1b58769f2c18447c22468fe28174e19c7ce9030eb9
Dec 17 18:40:42.704 INFO running `"docker" "start" "-a" "2054a3e8ed290d2f16597c1b58769f2c18447c22468fe28174e19c7ce9030eb9"`
Dec 17 18:40:44.185 INFO [stderr]    Compiling syn v0.14.9
Dec 17 18:40:51.496 INFO [stderr]    Compiling gumdrop_derive v0.5.0
Dec 17 18:40:55.082 INFO [stderr]     Checking gumdrop v0.5.0
Dec 17 18:40:55.426 INFO [stderr]     Checking cert_machine v0.1.0 (/opt/crater/workdir)
Dec 17 18:40:57.852 INFO [stderr] warning: variant is never constructed: `EtcdServer`
Dec 17 18:40:57.852 INFO [stderr]   --> src/kubernetes_certs.rs:31:5
Dec 17 18:40:57.852 INFO [stderr]    |
Dec 17 18:40:57.852 INFO [stderr] 31 |     EtcdServer(&'a Instance),
Dec 17 18:40:57.852 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^
Dec 17 18:40:57.852 INFO [stderr]    |
Dec 17 18:40:57.852 INFO [stderr]    = note: #[warn(dead_code)] on by default
Dec 17 18:40:57.852 INFO [stderr] 
Dec 17 18:40:57.852 INFO [stderr] warning: variant is never constructed: `Kubelet`
Dec 17 18:40:57.852 INFO [stderr]   --> src/kubernetes_certs.rs:32:5
Dec 17 18:40:57.852 INFO [stderr]    |
Dec 17 18:40:57.852 INFO [stderr] 32 |     Kubelet(&'a Instance),
Dec 17 18:40:57.852 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^
Dec 17 18:40:57.852 INFO [stderr] 
Dec 17 18:40:58.109 INFO [stderr] warning: variant is never constructed: `EtcdServer`
Dec 17 18:40:58.109 INFO [stderr]   --> src/kubernetes_certs.rs:31:5
Dec 17 18:40:58.109 INFO [stderr]    |
Dec 17 18:40:58.109 INFO [stderr] 31 |     EtcdServer(&'a Instance),
Dec 17 18:40:58.109 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^
Dec 17 18:40:58.109 INFO [stderr]    |
Dec 17 18:40:58.109 INFO [stderr]    = note: #[warn(dead_code)] on by default
Dec 17 18:40:58.109 INFO [stderr] 
Dec 17 18:40:58.109 INFO [stderr] warning: variant is never constructed: `Kubelet`
Dec 17 18:40:58.109 INFO [stderr]   --> src/kubernetes_certs.rs:32:5
Dec 17 18:40:58.109 INFO [stderr]    |
Dec 17 18:40:58.109 INFO [stderr] 32 |     Kubelet(&'a Instance),
Dec 17 18:40:58.109 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^
Dec 17 18:40:58.109 INFO [stderr] 
Dec 17 18:40:58.158 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 14.08s
Dec 17 18:40:58.952 INFO running `"docker" "inspect" "2054a3e8ed290d2f16597c1b58769f2c18447c22468fe28174e19c7ce9030eb9"`
Dec 17 18:40:59.260 INFO running `"docker" "rm" "-f" "2054a3e8ed290d2f16597c1b58769f2c18447c22468fe28174e19c7ce9030eb9"`
Dec 17 18:40:59.617 INFO [stdout] 2054a3e8ed290d2f16597c1b58769f2c18447c22468fe28174e19c7ce9030eb9