Dec 18 15:34:12.132 INFO checking graph-0.0.2 against try#0b8c5828f68d7b2840b81fa51239346dc97fef5a for pr-54252
Dec 18 15:34:12.132 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-54252/worker-3/try#0b8c5828f68d7b2840b81fa51239346dc97fef5a:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-54252/sources/try#0b8c5828f68d7b2840b81fa51239346dc97fef5a/reg/graph/0.0.2:/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" "+0b8c5828f68d7b2840b81fa51239346dc97fef5a-alt" "check" "--frozen" "--all" "--all-targets"`
Dec 18 15:34:12.646 INFO [stdout] e9a9c7a137372e550caa8389131536cc157e04b84738af3d48fc12df8d24106a
Dec 18 15:34:12.648 INFO running `"docker" "start" "-a" "e9a9c7a137372e550caa8389131536cc157e04b84738af3d48fc12df8d24106a"`
Dec 18 15:34:13.915 INFO [stderr]     Checking graph v0.0.2 (/opt/crater/workdir)
Dec 18 15:34:14.180 INFO [stderr] warning: struct is never constructed: `Node`
Dec 18 15:34:14.180 INFO [stderr]  --> src/lib.rs:1:1
Dec 18 15:34:14.180 INFO [stderr]   |
Dec 18 15:34:14.180 INFO [stderr] 1 | struct Node;
Dec 18 15:34:14.180 INFO [stderr]   | ^^^^^^^^^^^^
Dec 18 15:34:14.180 INFO [stderr]   |
Dec 18 15:34:14.180 INFO [stderr]   = note: #[warn(dead_code)] on by default
Dec 18 15:34:14.180 INFO [stderr] 
Dec 18 15:34:14.180 INFO [stderr] warning: struct is never constructed: `Edge`
Dec 18 15:34:14.180 INFO [stderr]  --> src/lib.rs:3:1
Dec 18 15:34:14.180 INFO [stderr]   |
Dec 18 15:34:14.180 INFO [stderr] 3 | struct Edge;
Dec 18 15:34:14.180 INFO [stderr]   | ^^^^^^^^^^^^
Dec 18 15:34:14.180 INFO [stderr] 
Dec 18 15:34:14.180 INFO [stderr] warning: struct is never constructed: `Graph`
Dec 18 15:34:14.180 INFO [stderr]  --> src/lib.rs:5:1
Dec 18 15:34:14.180 INFO [stderr]   |
Dec 18 15:34:14.180 INFO [stderr] 5 | struct Graph;
Dec 18 15:34:14.180 INFO [stderr]   | ^^^^^^^^^^^^^
Dec 18 15:34:14.180 INFO [stderr] 
Dec 18 15:34:14.228 INFO [stderr] warning: struct is never constructed: `Node`
Dec 18 15:34:14.228 INFO [stderr]  --> src/lib.rs:1:1
Dec 18 15:34:14.228 INFO [stderr]   |
Dec 18 15:34:14.228 INFO [stderr] 1 | struct Node;
Dec 18 15:34:14.228 INFO [stderr]   | ^^^^^^^^^^^^
Dec 18 15:34:14.228 INFO [stderr]   |
Dec 18 15:34:14.228 INFO [stderr]   = note: #[warn(dead_code)] on by default
Dec 18 15:34:14.228 INFO [stderr] 
Dec 18 15:34:14.228 INFO [stderr] warning: struct is never constructed: `Edge`
Dec 18 15:34:14.228 INFO [stderr]  --> src/lib.rs:3:1
Dec 18 15:34:14.228 INFO [stderr]   |
Dec 18 15:34:14.228 INFO [stderr] 3 | struct Edge;
Dec 18 15:34:14.228 INFO [stderr]   | ^^^^^^^^^^^^
Dec 18 15:34:14.228 INFO [stderr] 
Dec 18 15:34:14.228 INFO [stderr] warning: struct is never constructed: `Graph`
Dec 18 15:34:14.228 INFO [stderr]  --> src/lib.rs:5:1
Dec 18 15:34:14.228 INFO [stderr]   |
Dec 18 15:34:14.228 INFO [stderr] 5 | struct Graph;
Dec 18 15:34:14.228 INFO [stderr]   | ^^^^^^^^^^^^^
Dec 18 15:34:14.228 INFO [stderr] 
Dec 18 15:34:14.263 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.39s
Dec 18 15:34:14.703 INFO running `"docker" "inspect" "e9a9c7a137372e550caa8389131536cc157e04b84738af3d48fc12df8d24106a"`
Dec 18 15:34:14.866 INFO running `"docker" "rm" "-f" "e9a9c7a137372e550caa8389131536cc157e04b84738af3d48fc12df8d24106a"`
Dec 18 15:34:14.983 INFO [stdout] e9a9c7a137372e550caa8389131536cc157e04b84738af3d48fc12df8d24106a