[INFO] updating cached repository cramertj/link-error-repro
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/cramertj/link-error-repro
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/cramertj/link-error-repro" "work/ex/pr-58948/sources/master#0f88167f89fffe321590c5148f21b7d51d44388d/gh/cramertj/link-error-repro"`
[INFO] [stderr] Cloning into 'work/ex/pr-58948/sources/master#0f88167f89fffe321590c5148f21b7d51d44388d/gh/cramertj/link-error-repro'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/cramertj/link-error-repro" "work/ex/pr-58948/sources/try#a829e31f924ec11e400e8d0c2fd2c4bb8937ae6b/gh/cramertj/link-error-repro"`
[INFO] [stderr] Cloning into 'work/ex/pr-58948/sources/try#a829e31f924ec11e400e8d0c2fd2c4bb8937ae6b/gh/cramertj/link-error-repro'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] b4b055cadec6caa3aefa908df65e3ac1c2ee7506
[INFO] sha for GitHub repo cramertj/link-error-repro: b4b055cadec6caa3aefa908df65e3ac1c2ee7506
[INFO] validating manifest of cramertj/link-error-repro on toolchain master#0f88167f89fffe321590c5148f21b7d51d44388d
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+0f88167f89fffe321590c5148f21b7d51d44388d-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of cramertj/link-error-repro on toolchain try#a829e31f924ec11e400e8d0c2fd2c4bb8937ae6b
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+a829e31f924ec11e400e8d0c2fd2c4bb8937ae6b-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing cramertj/link-error-repro
[INFO] finished frobbing cramertj/link-error-repro
[INFO] frobbed toml for cramertj/link-error-repro written to work/ex/pr-58948/sources/master#0f88167f89fffe321590c5148f21b7d51d44388d/gh/cramertj/link-error-repro/Cargo.toml
[INFO] started frobbing cramertj/link-error-repro
[INFO] finished frobbing cramertj/link-error-repro
[INFO] frobbed toml for cramertj/link-error-repro written to work/ex/pr-58948/sources/try#a829e31f924ec11e400e8d0c2fd2c4bb8937ae6b/gh/cramertj/link-error-repro/Cargo.toml
[INFO] crate cramertj/link-error-repro already has a lockfile, it will not be regenerated
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+0f88167f89fffe321590c5148f21b7d51d44388d-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+a829e31f924ec11e400e8d0c2fd2c4bb8937ae6b-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] checking cramertj/link-error-repro against try#a829e31f924ec11e400e8d0c2fd2c4bb8937ae6b for pr-58948
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-58948/worker-7/try#a829e31f924ec11e400e8d0c2fd2c4bb8937ae6b:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-58948/sources/try#a829e31f924ec11e400e8d0c2fd2c4bb8937ae6b/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" "+a829e31f924ec11e400e8d0c2fd2c4bb8937ae6b-alt" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] e869a381dcecd0cb4207960852f0973b329469ff7cfd1fae5170900f0bf2eba2
[INFO] running `"docker" "start" "-a" "e869a381dcecd0cb4207960852f0973b329469ff7cfd1fae5170900f0bf2eba2"`
[INFO] [stderr] warning: the cargo feature `edition` is now stable and is no longer necessary to be listed in the manifest
[INFO] [stderr]    Compiling syn v0.13.4
[INFO] [stderr]     Checking clap v2.31.2
[INFO] [stderr]    Compiling structopt-derive v0.2.8
[INFO] [stderr]     Checking structopt v0.2.8
[INFO] [stderr]     Checking rolldice v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: unused imports: `Rng`, `thread_rng`
[INFO] [stderr]  --> src/main.rs:5:12
[INFO] [stderr]   |
[INFO] [stderr] 5 | use rand::{thread_rng, Rng};
[INFO] [stderr]   |            ^^^^^^^^^^  ^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(unused_imports)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `config`
[INFO] [stderr]   --> src/main.rs:19:9
[INFO] [stderr]    |
[INFO] [stderr] 19 |     let config = Config::from_args();
[INFO] [stderr]    |         ^^^^^^ help: consider prefixing with an underscore: `_config`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_variables)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused imports: `Rng`, `thread_rng`
[INFO] [stderr]  --> src/main.rs:5:12
[INFO] [stderr]   |
[INFO] [stderr] 5 | use rand::{thread_rng, Rng};
[INFO] [stderr]   |            ^^^^^^^^^^  ^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(unused_imports)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `config`
[INFO] [stderr]   --> src/main.rs:19:9
[INFO] [stderr]    |
[INFO] [stderr] 19 |     let config = Config::from_args();
[INFO] [stderr]    |         ^^^^^^ help: consider prefixing with an underscore: `_config`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_variables)] on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 18.25s
[INFO] running `"docker" "inspect" "e869a381dcecd0cb4207960852f0973b329469ff7cfd1fae5170900f0bf2eba2"`
[INFO] running `"docker" "rm" "-f" "e869a381dcecd0cb4207960852f0973b329469ff7cfd1fae5170900f0bf2eba2"`
[INFO] [stdout] e869a381dcecd0cb4207960852f0973b329469ff7cfd1fae5170900f0bf2eba2