[INFO] updating cached repository simonhdickson/rcc
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/simonhdickson/rcc
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/simonhdickson/rcc" "work/ex/pr-57501/sources/master#6ecad338381cc3b8d56e2df22e5971a598eddd6c/gh/simonhdickson/rcc"`
[INFO] [stderr] Cloning into 'work/ex/pr-57501/sources/master#6ecad338381cc3b8d56e2df22e5971a598eddd6c/gh/simonhdickson/rcc'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/simonhdickson/rcc" "work/ex/pr-57501/sources/try#5f789154f114767b2d0cb9c5b6c592cb3a635e6f/gh/simonhdickson/rcc"`
[INFO] [stderr] Cloning into 'work/ex/pr-57501/sources/try#5f789154f114767b2d0cb9c5b6c592cb3a635e6f/gh/simonhdickson/rcc'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] f922176836ce4f549f62f26863002d42de06670b
[INFO] sha for GitHub repo simonhdickson/rcc: f922176836ce4f549f62f26863002d42de06670b
[INFO] validating manifest of simonhdickson/rcc on toolchain master#6ecad338381cc3b8d56e2df22e5971a598eddd6c
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+6ecad338381cc3b8d56e2df22e5971a598eddd6c-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of simonhdickson/rcc on toolchain try#5f789154f114767b2d0cb9c5b6c592cb3a635e6f
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+5f789154f114767b2d0cb9c5b6c592cb3a635e6f-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing simonhdickson/rcc
[INFO] finished frobbing simonhdickson/rcc
[INFO] frobbed toml for simonhdickson/rcc written to work/ex/pr-57501/sources/master#6ecad338381cc3b8d56e2df22e5971a598eddd6c/gh/simonhdickson/rcc/Cargo.toml
[INFO] started frobbing simonhdickson/rcc
[INFO] finished frobbing simonhdickson/rcc
[INFO] frobbed toml for simonhdickson/rcc written to work/ex/pr-57501/sources/try#5f789154f114767b2d0cb9c5b6c592cb3a635e6f/gh/simonhdickson/rcc/Cargo.toml
[INFO] crate simonhdickson/rcc has a lockfile. skipping
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+6ecad338381cc3b8d56e2df22e5971a598eddd6c-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+5f789154f114767b2d0cb9c5b6c592cb3a635e6f-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] checking simonhdickson/rcc against master#6ecad338381cc3b8d56e2df22e5971a598eddd6c for pr-57501
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-57501/worker-7/master#6ecad338381cc3b8d56e2df22e5971a598eddd6c:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-57501/sources/master#6ecad338381cc3b8d56e2df22e5971a598eddd6c/gh/simonhdickson/rcc:/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" "+6ecad338381cc3b8d56e2df22e5971a598eddd6c-alt" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] a363c4b4441ec85b0c93f3ff415f4eb181f0bda5374d5497a9a8e4fa855531e5
[INFO] running `"docker" "start" "-a" "a363c4b4441ec85b0c93f3ff415f4eb181f0bda5374d5497a9a8e4fa855531e5"`
[INFO] [stderr]     Checking failure v0.1.1
[INFO] [stderr]     Checking rcc v0.1.0 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.87s
[INFO] running `"docker" "inspect" "a363c4b4441ec85b0c93f3ff415f4eb181f0bda5374d5497a9a8e4fa855531e5"`
[INFO] running `"docker" "rm" "-f" "a363c4b4441ec85b0c93f3ff415f4eb181f0bda5374d5497a9a8e4fa855531e5"`
[INFO] [stdout] a363c4b4441ec85b0c93f3ff415f4eb181f0bda5374d5497a9a8e4fa855531e5