[INFO] updating cached repository davidbarsky/vis-diff
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/davidbarsky/vis-diff
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/davidbarsky/vis-diff" "work/ex/pr-60174/sources/master#e305df1846a6d985315917ae0c81b74af8b4e641/gh/davidbarsky/vis-diff"`
[INFO] [stderr] Cloning into 'work/ex/pr-60174/sources/master#e305df1846a6d985315917ae0c81b74af8b4e641/gh/davidbarsky/vis-diff'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/davidbarsky/vis-diff" "work/ex/pr-60174/sources/try#74092351c05ae61047b2be02024415546595e974/gh/davidbarsky/vis-diff"`
[INFO] [stderr] Cloning into 'work/ex/pr-60174/sources/try#74092351c05ae61047b2be02024415546595e974/gh/davidbarsky/vis-diff'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] a4122c30a5cbc2f2c5cd87d774b834a3ea10a69a
[INFO] sha for GitHub repo davidbarsky/vis-diff: a4122c30a5cbc2f2c5cd87d774b834a3ea10a69a
[INFO] validating manifest of davidbarsky/vis-diff on toolchain master#e305df1846a6d985315917ae0c81b74af8b4e641
[INFO] running `"/mnt/crater-raid/crater/work/local/cargo-home/bin/cargo" "+e305df1846a6d985315917ae0c81b74af8b4e641-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of davidbarsky/vis-diff on toolchain try#74092351c05ae61047b2be02024415546595e974
[INFO] running `"/mnt/crater-raid/crater/work/local/cargo-home/bin/cargo" "+74092351c05ae61047b2be02024415546595e974-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing davidbarsky/vis-diff
[INFO] finished frobbing davidbarsky/vis-diff
[INFO] frobbed toml for davidbarsky/vis-diff written to work/ex/pr-60174/sources/master#e305df1846a6d985315917ae0c81b74af8b4e641/gh/davidbarsky/vis-diff/Cargo.toml
[INFO] started frobbing davidbarsky/vis-diff
[INFO] finished frobbing davidbarsky/vis-diff
[INFO] frobbed toml for davidbarsky/vis-diff written to work/ex/pr-60174/sources/try#74092351c05ae61047b2be02024415546595e974/gh/davidbarsky/vis-diff/Cargo.toml
[INFO] crate davidbarsky/vis-diff already has a lockfile, it will not be regenerated
[INFO] running `"/mnt/crater-raid/crater/work/local/cargo-home/bin/cargo" "+e305df1846a6d985315917ae0c81b74af8b4e641-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/crater-raid/crater/work/local/cargo-home/bin/cargo" "+74092351c05ae61047b2be02024415546595e974-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] checking davidbarsky/vis-diff against master#e305df1846a6d985315917ae0c81b74af8b4e641 for pr-60174
[INFO] running `"docker" "create" "-v" "/mnt/crater-raid/crater/work/local/target-dirs/pr-60174/worker-6/master#e305df1846a6d985315917ae0c81b74af8b4e641:/opt/crater/target:rw,Z" "-v" "/mnt/crater-raid/crater/work/ex/pr-60174/sources/master#e305df1846a6d985315917ae0c81b74af8b4e641/gh/davidbarsky/vis-diff:/opt/crater/workdir:ro,Z" "-v" "/mnt/crater-raid/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/crater-raid/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" "+e305df1846a6d985315917ae0c81b74af8b4e641-alt" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] 8e36ee03f7dcbdecd6b5e2e2b270b62676ce736c1b7a8299d60f039df3a0bdf5
[INFO] running `"docker" "start" "-a" "8e36ee03f7dcbdecd6b5e2e2b270b62676ce736c1b7a8299d60f039df3a0bdf5"`
[INFO] [stderr]     Checking structopt v0.1.6
[INFO] [stderr]     Checking vis-diff v0.1.0 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.95s
[INFO] running `"docker" "inspect" "8e36ee03f7dcbdecd6b5e2e2b270b62676ce736c1b7a8299d60f039df3a0bdf5"`
[INFO] running `"docker" "rm" "-f" "8e36ee03f7dcbdecd6b5e2e2b270b62676ce736c1b7a8299d60f039df3a0bdf5"`
[INFO] [stdout] 8e36ee03f7dcbdecd6b5e2e2b270b62676ce736c1b7a8299d60f039df3a0bdf5