Dec 05 12:30:43.521 INFO checking graph-0.0.2 against master#c8ae2de8363be088604ffa2ccba84ff7ad7250bc for pr-56481
Dec 05 12:30:43.521 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56481/worker-1/master#c8ae2de8363be088604ffa2ccba84ff7ad7250bc:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-1/pr-56481/master#c8ae2de8363be088604ffa2ccba84ff7ad7250bc:/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 +c8ae2de8363be088604ffa2ccba84ff7ad7250bc-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 05 12:30:43.851 INFO [stdout] 799c1d0e6e4b7ff7603f10e855a748ba53a526e24f3a93eb22125853b7385f8e
Dec 05 12:30:43.857 INFO running `"docker" "start" "-a" "799c1d0e6e4b7ff7603f10e855a748ba53a526e24f3a93eb22125853b7385f8e"`
Dec 05 12:30:44.728 INFO [stderr] usermod: no changes
Dec 05 12:30:44.799 INFO [stderr]     Checking graph v0.0.2 (/source)
Dec 05 12:30:45.356 INFO [stderr] warning: struct is never constructed: `Node`
Dec 05 12:30:45.356 INFO [stderr]  --> src/lib.rs:1:1
Dec 05 12:30:45.356 INFO [stderr]   |
Dec 05 12:30:45.356 INFO [stderr] 1 | struct Node;
Dec 05 12:30:45.356 INFO [stderr]   | ^^^^^^^^^^^^
Dec 05 12:30:45.356 INFO [stderr]   |
Dec 05 12:30:45.356 INFO [stderr]   = note: #[warn(dead_code)] on by default
Dec 05 12:30:45.356 INFO [stderr] 
Dec 05 12:30:45.356 INFO [stderr] warning: struct is never constructed: `Edge`
Dec 05 12:30:45.356 INFO [stderr]  --> src/lib.rs:3:1
Dec 05 12:30:45.356 INFO [stderr]   |
Dec 05 12:30:45.356 INFO [stderr] 3 | struct Edge;
Dec 05 12:30:45.356 INFO [stderr]   | ^^^^^^^^^^^^
Dec 05 12:30:45.356 INFO [stderr] 
Dec 05 12:30:45.356 INFO [stderr] warning: struct is never constructed: `Graph`
Dec 05 12:30:45.356 INFO [stderr]  --> src/lib.rs:5:1
Dec 05 12:30:45.356 INFO [stderr]   |
Dec 05 12:30:45.356 INFO [stderr] 5 | struct Graph;
Dec 05 12:30:45.356 INFO [stderr]   | ^^^^^^^^^^^^^
Dec 05 12:30:45.356 INFO [stderr] 
Dec 05 12:30:45.369 INFO [stderr] warning: struct is never constructed: `Node`
Dec 05 12:30:45.369 INFO [stderr]  --> src/lib.rs:1:1
Dec 05 12:30:45.369 INFO [stderr]   |
Dec 05 12:30:45.369 INFO [stderr] 1 | struct Node;
Dec 05 12:30:45.369 INFO [stderr]   | ^^^^^^^^^^^^
Dec 05 12:30:45.369 INFO [stderr]   |
Dec 05 12:30:45.369 INFO [stderr]   = note: #[warn(dead_code)] on by default
Dec 05 12:30:45.369 INFO [stderr] 
Dec 05 12:30:45.369 INFO [stderr] warning: struct is never constructed: `Edge`
Dec 05 12:30:45.369 INFO [stderr]  --> src/lib.rs:3:1
Dec 05 12:30:45.369 INFO [stderr]   |
Dec 05 12:30:45.369 INFO [stderr] 3 | struct Edge;
Dec 05 12:30:45.369 INFO [stderr]   | ^^^^^^^^^^^^
Dec 05 12:30:45.369 INFO [stderr] 
Dec 05 12:30:45.369 INFO [stderr] warning: struct is never constructed: `Graph`
Dec 05 12:30:45.369 INFO [stderr]  --> src/lib.rs:5:1
Dec 05 12:30:45.369 INFO [stderr]   |
Dec 05 12:30:45.369 INFO [stderr] 5 | struct Graph;
Dec 05 12:30:45.369 INFO [stderr]   | ^^^^^^^^^^^^^
Dec 05 12:30:45.369 INFO [stderr] 
Dec 05 12:30:45.383 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.62s
Dec 05 12:30:45.385 INFO [stderr] su: No module specific data is present
Dec 05 12:30:45.756 INFO running `"docker" "inspect" "799c1d0e6e4b7ff7603f10e855a748ba53a526e24f3a93eb22125853b7385f8e"`
Dec 05 12:30:45.871 INFO running `"docker" "rm" "-f" "799c1d0e6e4b7ff7603f10e855a748ba53a526e24f3a93eb22125853b7385f8e"`
Dec 05 12:30:45.976 INFO [stdout] 799c1d0e6e4b7ff7603f10e855a748ba53a526e24f3a93eb22125853b7385f8e