[INFO] updating cached repository https://github.com/khanhtc1202/undefined-rust
[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] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 004a1e758bf14a17bc2db0296b71b3424b69bce7
[INFO] checking khanhtc1202/undefined-rust against try#e689e5eaefe96e6dc3ed5bb629c521b7d207aff7 for pr-64398
[INFO] running `"git" "clone" "work/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkhanhtc1202%2Fundefined-rust" "work/builds/worker-5/source"`
[INFO] [stderr] Cloning into 'work/builds/worker-5/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/khanhtc1202/undefined-rust on toolchain e689e5eaefe96e6dc3ed5bb629c521b7d207aff7-alt
[INFO] running `"/mnt/big/crater/work/cargo-home/bin/cargo" "+e689e5eaefe96e6dc3ed5bb629c521b7d207aff7-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking git repo https://github.com/khanhtc1202/undefined-rust
[INFO] finished tweaking git repo https://github.com/khanhtc1202/undefined-rust
[INFO] tweaked toml for git repo https://github.com/khanhtc1202/undefined-rust written to work/builds/worker-5/source/Cargo.toml
[INFO] crate git repo https://github.com/khanhtc1202/undefined-rust already has a lockfile, it will not be regenerated
[INFO] running `"/mnt/big/crater/work/cargo-home/bin/cargo" "+e689e5eaefe96e6dc3ed5bb629c521b7d207aff7-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/mnt/big/crater/work/builds/worker-5/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" "+e689e5eaefe96e6dc3ed5bb629c521b7d207aff7-alt" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] b7b08e021c06d255bca5cba8edecc776738f3857dcbeb0f1ec18a89ab2e6838b
[INFO] running `"docker" "start" "-a" "b7b08e021c06d255bca5cba8edecc776738f3857dcbeb0f1ec18a89ab2e6838b"`
[INFO] [stderr]     Checking sandbox v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] error: expected item after doc comment
[INFO] [stderr]    --> src/smart_pointer.rs:154:1
[INFO] [stderr]     |
[INFO] [stderr] 154 | /// of your program for reading only.
[INFO] [stderr]     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ this doc comment doesn't document anything
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to previous error
[INFO] [stderr] 
[INFO] [stderr] error: expected item after doc comment
[INFO] [stderr]    --> src/smart_pointer.rs:154:1
[INFO] [stderr]     |
[INFO] [stderr] 154 | /// of your program for reading only.
[INFO] [stderr]     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ this doc comment doesn't document anything
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to previous error
[INFO] [stderr] 
[INFO] [stderr] error: Could not compile `sandbox`.
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: Could not compile `sandbox`.
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: build failed
[INFO] running `"docker" "inspect" "b7b08e021c06d255bca5cba8edecc776738f3857dcbeb0f1ec18a89ab2e6838b"`
[INFO] running `"docker" "rm" "-f" "b7b08e021c06d255bca5cba8edecc776738f3857dcbeb0f1ec18a89ab2e6838b"`
[INFO] [stdout] b7b08e021c06d255bca5cba8edecc776738f3857dcbeb0f1ec18a89ab2e6838b