[INFO] updating cached repository https://github.com/UnicodingUnicorn/file_scanner
[INFO] running `"git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/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] c307a01c994e19c7551241c161c6aaf82854fb65
[INFO] testing UnicodingUnicorn/file_scanner against beta-2020-06-03 for beta-1.45-1
[INFO] running `"git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FUnicodingUnicorn%2Ffile_scanner" "/workspace/builds/worker-12/source"`
[INFO] [stderr] Cloning into '/workspace/builds/worker-12/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/UnicodingUnicorn/file_scanner on toolchain beta-2020-06-03
[INFO] running `"/workspace/cargo-home/bin/cargo" "+beta-2020-06-03" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking git repo https://github.com/UnicodingUnicorn/file_scanner
[INFO] finished tweaking git repo https://github.com/UnicodingUnicorn/file_scanner
[INFO] tweaked toml for git repo https://github.com/UnicodingUnicorn/file_scanner written to /workspace/builds/worker-12/source/Cargo.toml
[INFO] crate git repo https://github.com/UnicodingUnicorn/file_scanner already has a lockfile, it will not be regenerated
[INFO] running `"/workspace/cargo-home/bin/cargo" "+beta-2020-06-03" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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=warn" "-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" "+beta-2020-06-03" "build" "--frozen"`
[INFO] [stdout] 01474fdba91a54408d656d015d18c8002fd50a2e84cb4c58f567bee4eedebe79
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `"docker" "start" "-a" "01474fdba91a54408d656d015d18c8002fd50a2e84cb4c58f567bee4eedebe79"`
[INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted
[INFO] [stderr]    Compiling libc v0.2.61
[INFO] [stderr]    Compiling rand v0.4.6
[INFO] [stderr]    Compiling time v0.1.42
[INFO] [stderr]    Compiling rand v0.3.23
[INFO] [stderr]    Compiling rust-crypto v0.2.36
[INFO] [stderr]    Compiling file_scanner2 v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] error: environment variable `FILE_SCANNER_HASHES` not defined
[INFO] [stderr]   --> src/main.rs:32:25
[INFO] [stderr]    |
[INFO] [stderr] 32 |     let hashes_string = env!("FILE_SCANNER_HASHES");
[INFO] [stderr]    |                         ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: this error originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] error: environment variable `FILE_SCANNER_DELIMITER` not defined
[INFO] [stderr]   --> src/main.rs:33:21
[INFO] [stderr]    |
[INFO] [stderr] 33 |     let delimiter = env!("FILE_SCANNER_DELIMITER");
[INFO] [stderr]    |                     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: this error originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to 2 previous errors
[INFO] [stderr] 
[INFO] [stderr] error: could not compile `file_scanner2`.
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `"docker" "inspect" "01474fdba91a54408d656d015d18c8002fd50a2e84cb4c58f567bee4eedebe79"`
[INFO] running `"docker" "rm" "-f" "01474fdba91a54408d656d015d18c8002fd50a2e84cb4c58f567bee4eedebe79"`
[INFO] [stdout] 01474fdba91a54408d656d015d18c8002fd50a2e84cb4c58f567bee4eedebe79