[INFO] cloning repository https://github.com/ConnorSkees/rpng
[INFO] running `"git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/ConnorSkees/rpng" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FConnorSkees%2Frpng"`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FConnorSkees%2Frpng'...
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 74e4f8595e62e1bcb08ec6d690c0f39cf877d215
[INFO] checking ConnorSkees/rpng against master#914adf04af1c1a984707f778da3d04590c03d144 for pr-72331
[INFO] running `"git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FConnorSkees%2Frpng" "/workspace/builds/worker-3/source"`
[INFO] [stderr] Cloning into '/workspace/builds/worker-3/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/ConnorSkees/rpng on toolchain 914adf04af1c1a984707f778da3d04590c03d144
[INFO] running `"/workspace/cargo-home/bin/cargo" "+914adf04af1c1a984707f778da3d04590c03d144" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking git repo https://github.com/ConnorSkees/rpng
[INFO] finished tweaking git repo https://github.com/ConnorSkees/rpng
[INFO] tweaked toml for git repo https://github.com/ConnorSkees/rpng written to /workspace/builds/worker-3/source/Cargo.toml
[INFO] crate git repo https://github.com/ConnorSkees/rpng already has a lockfile, it will not be regenerated
[INFO] running `"/workspace/cargo-home/bin/cargo" "+914adf04af1c1a984707f778da3d04590c03d144" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr] warning: file found to be present in multiple build targets: /workspace/builds/worker-3/source/src/main.rs
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "MAP_USER_ID=0" "-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" "+914adf04af1c1a984707f778da3d04590c03d144" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] c2c0c39afef0214fd6bde4490712d9b2df47f4e2636e475b63099f74d722b5fe
[INFO] running `"docker" "start" "-a" "c2c0c39afef0214fd6bde4490712d9b2df47f4e2636e475b63099f74d722b5fe"`
[INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted
[INFO] [stderr] warning: file found to be present in multiple build targets: /opt/rustwide/workdir/src/main.rs
[INFO] [stderr]    Compiling libc v0.2.60
[INFO] [stderr]    Compiling cc v1.0.37
[INFO] [stderr]    Compiling pkg-config v0.3.14
[INFO] [stderr]    Compiling crc32fast v1.2.0
[INFO] [stderr]     Checking cfg-if v0.1.9
[INFO] [stderr]    Compiling serde v1.0.97
[INFO] [stderr]    Compiling libz-sys v1.0.25
[INFO] [stderr]     Checking flate2 v1.0.9
[INFO] [stderr]     Checking rpng v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] error: unexpected closing delimiter: `}`
[INFO] [stderr]   --> src/main.rs:63:1
[INFO] [stderr]    |
[INFO] [stderr] 48 | mod test {
[INFO] [stderr]    |          - this opening brace...
[INFO] [stderr] ...
[INFO] [stderr] 60 | }
[INFO] [stderr]    | - ...matches this closing brace
[INFO] [stderr] ...
[INFO] [stderr] 63 | }
[INFO] [stderr]    | ^ unexpected closing delimiter
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to previous error
[INFO] [stderr] 
[INFO] [stderr] error: could not compile `rpng`.
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: build failed
[INFO] running `"docker" "inspect" "c2c0c39afef0214fd6bde4490712d9b2df47f4e2636e475b63099f74d722b5fe"`
[INFO] running `"docker" "rm" "-f" "c2c0c39afef0214fd6bde4490712d9b2df47f4e2636e475b63099f74d722b5fe"`
[INFO] [stdout] c2c0c39afef0214fd6bde4490712d9b2df47f4e2636e475b63099f74d722b5fe