Dec 19 18:44:00.812 INFO checking cramertj/link-error-repro against master#d99a320cba42f661aebfa1293b7b2ec3603dda75 for pr-56955
Dec 19 18:44:00.813 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56955/worker-5/master#d99a320cba42f661aebfa1293b7b2ec3603dda75:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-56955/sources/master#d99a320cba42f661aebfa1293b7b2ec3603dda75/gh/cramertj/link-error-repro:/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 18:44:01.310 INFO [stdout] b1fa73b03f40ba62514ac5f636fdebd616f775692533e5b7df168e21c0fa1432
Dec 19 18:44:01.312 INFO running `"docker" "start" "-a" "b1fa73b03f40ba62514ac5f636fdebd616f775692533e5b7df168e21c0fa1432"`
Dec 19 18:44:03.263 INFO [stderr] warning: the cargo feature `edition` is now stable and is no longer necessary to be listed in the manifest
Dec 19 18:44:03.342 INFO [stderr]     Checking clap v2.31.2
Dec 19 18:44:03.348 INFO [stderr]    Compiling syn v0.13.4
Dec 19 18:44:14.883 INFO [stderr]    Compiling structopt-derive v0.2.8
Dec 19 18:44:18.274 INFO [stderr]     Checking structopt v0.2.8
Dec 19 18:44:18.615 INFO [stderr]     Checking rolldice v0.1.0 (/opt/crater/workdir)
Dec 19 18:44:19.585 INFO [stderr] warning: unused imports: `Rng`, `thread_rng`
Dec 19 18:44:19.585 INFO [stderr]  --> src/main.rs:5:12
Dec 19 18:44:19.585 INFO [stderr]   |
Dec 19 18:44:19.585 INFO [stderr] 5 | use rand::{thread_rng, Rng};
Dec 19 18:44:19.585 INFO [stderr]   |            ^^^^^^^^^^  ^^^
Dec 19 18:44:19.585 INFO [stderr]   |
Dec 19 18:44:19.585 INFO [stderr]   = note: #[warn(unused_imports)] on by default
Dec 19 18:44:19.585 INFO [stderr] 
Dec 19 18:44:19.631 INFO [stderr] warning: unused variable: `config`
Dec 19 18:44:19.631 INFO [stderr]   --> src/main.rs:19:9
Dec 19 18:44:19.631 INFO [stderr]    |
Dec 19 18:44:19.631 INFO [stderr] 19 |     let config = Config::from_args();
Dec 19 18:44:19.631 INFO [stderr]    |         ^^^^^^ help: consider using `_config` instead
Dec 19 18:44:19.631 INFO [stderr]    |
Dec 19 18:44:19.636 INFO [stderr]    = note: #[warn(unused_variables)] on by default
Dec 19 18:44:19.636 INFO [stderr] 
Dec 19 18:44:19.741 INFO [stderr] warning: unused imports: `Rng`, `thread_rng`
Dec 19 18:44:19.741 INFO [stderr]  --> src/main.rs:5:12
Dec 19 18:44:19.741 INFO [stderr]   |
Dec 19 18:44:19.742 INFO [stderr] 5 | use rand::{thread_rng, Rng};
Dec 19 18:44:19.742 INFO [stderr]   |            ^^^^^^^^^^  ^^^
Dec 19 18:44:19.742 INFO [stderr]   |
Dec 19 18:44:19.743 INFO [stderr]   = note: #[warn(unused_imports)] on by default
Dec 19 18:44:19.743 INFO [stderr] 
Dec 19 18:44:19.789 INFO [stderr] warning: unused variable: `config`
Dec 19 18:44:19.790 INFO [stderr]   --> src/main.rs:19:9
Dec 19 18:44:19.790 INFO [stderr]    |
Dec 19 18:44:19.790 INFO [stderr] 19 |     let config = Config::from_args();
Dec 19 18:44:19.790 INFO [stderr]    |         ^^^^^^ help: consider using `_config` instead
Dec 19 18:44:19.790 INFO [stderr]    |
Dec 19 18:44:19.791 INFO [stderr]    = note: #[warn(unused_variables)] on by default
Dec 19 18:44:19.791 INFO [stderr] 
Dec 19 18:44:19.840 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 16.60s
Dec 19 18:44:20.882 INFO running `"docker" "inspect" "b1fa73b03f40ba62514ac5f636fdebd616f775692533e5b7df168e21c0fa1432"`
Dec 19 18:44:21.198 INFO running `"docker" "rm" "-f" "b1fa73b03f40ba62514ac5f636fdebd616f775692533e5b7df168e21c0fa1432"`
Dec 19 18:44:21.488 INFO [stdout] b1fa73b03f40ba62514ac5f636fdebd616f775692533e5b7df168e21c0fa1432