[INFO] updating cached repository https://github.com/vluzko/Grace
[INFO] running `"git" "-c" "credential.helper=" "-c" "credential.helper=/mnt/big/crater/work/cargo-home/bin/git-credential-null" "-c" "remote.origin.fetch=refs/heads/*:refs/heads/*" "fetch" "origin" "--force" "--prune"`
[INFO] [stderr] From https://github.com/vluzko/Grace
[INFO] [stderr]    b2d0509..900a6bc  master     -> master
[INFO] [stderr]    92acfc5..ad0dc58  mvp        -> mvp
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 900a6bca73aaa57924f220fe75f46a9518beaa6f
[INFO] checking vluzko/Grace against master#9b9d2aff8de4d499b4ba7ca406e000f8d3754ea7 for pr-64564
[INFO] running `"git" "clone" "work/cache/git-repos/https%3A%2F%2Fgithub.com%2Fvluzko%2FGrace" "work/builds/worker-2/source"`
[INFO] [stderr] Cloning into 'work/builds/worker-2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/vluzko/Grace on toolchain 9b9d2aff8de4d499b4ba7ca406e000f8d3754ea7-alt
[INFO] running `"/mnt/big/crater/work/cargo-home/bin/cargo" "+9b9d2aff8de4d499b4ba7ca406e000f8d3754ea7-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking git repo https://github.com/vluzko/Grace
[INFO] finished tweaking git repo https://github.com/vluzko/Grace
[INFO] tweaked toml for git repo https://github.com/vluzko/Grace written to work/builds/worker-2/source/Cargo.toml
[INFO] running `"/mnt/big/crater/work/cargo-home/bin/cargo" "+9b9d2aff8de4d499b4ba7ca406e000f8d3754ea7-alt" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/crater/work/cargo-home/bin/cargo" "+9b9d2aff8de4d499b4ba7ca406e000f8d3754ea7-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/mnt/big/crater/work/builds/worker-2/source:/opt/rustwide/workdir:ro,Z" "-v" "/mnt/big/crater/work/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+9b9d2aff8de4d499b4ba7ca406e000f8d3754ea7-alt" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] 3b2081a42aba21a9a7dd8f432f2d45eab5735a3a86c8239ade43b9c745f53a10
[INFO] running `"docker" "start" "-a" "3b2081a42aba21a9a7dd8f432f2d45eab5735a3a86c8239ade43b9c745f53a10"`
[INFO] [stderr]     Checking cute v0.3.0
[INFO] [stderr]     Checking bytecount v0.6.0
[INFO] [stderr]     Checking lock_api v0.1.5
[INFO] [stderr]     Checking itertools v0.8.0
[INFO] [stderr]     Checking parking_lot v0.7.1
[INFO] [stderr]     Checking once_cell v0.1.8
[INFO] [stderr]     Checking cached v0.9.0
[INFO] [stderr]     Checking grace v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] warning: unreachable expression
[INFO] [stderr]    --> src/typing.rs:143:9
[INFO] [stderr]     |
[INFO] [stderr] 143 | /         return match self {
[INFO] [stderr] 144 | |             Type::Record (attributes) => {
[INFO] [stderr] 145 | |                 for (attr_name, attr_type) in attributes {
[INFO] [stderr] 146 | |                     if attribute == attr_name {
[INFO] [stderr] ...   |
[INFO] [stderr] 152 | |             _ => panic!("The provided type doesn't have attributes.")
[INFO] [stderr] 153 | |         };
[INFO] [stderr]     | |_________^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unreachable_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unreachable expression
[INFO] [stderr]    --> src/typing.rs:143:9
[INFO] [stderr]     |
[INFO] [stderr] 143 | /         return match self {
[INFO] [stderr] 144 | |             Type::Record (attributes) => {
[INFO] [stderr] 145 | |                 for (attr_name, attr_type) in attributes {
[INFO] [stderr] 146 | |                     if attribute == attr_name {
[INFO] [stderr] ...   |
[INFO] [stderr] 152 | |             _ => panic!("The provided type doesn't have attributes.")
[INFO] [stderr] 153 | |         };
[INFO] [stderr]     | |_________^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unreachable_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 22.57s
[INFO] running `"docker" "inspect" "3b2081a42aba21a9a7dd8f432f2d45eab5735a3a86c8239ade43b9c745f53a10"`
[INFO] running `"docker" "rm" "-f" "3b2081a42aba21a9a7dd8f432f2d45eab5735a3a86c8239ade43b9c745f53a10"`
[INFO] [stdout] 3b2081a42aba21a9a7dd8f432f2d45eab5735a3a86c8239ade43b9c745f53a10