[INFO] updating cached repository https://github.com/dpc/rhex
[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] 1359daa83889e204d5075c88159e6b507353ea72
[INFO] testing dpc/rhex against beta-2020-06-03 for beta-1.45-1
[INFO] running `"git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdpc%2Frhex" "/workspace/builds/worker-7/source"`
[INFO] [stderr] Cloning into '/workspace/builds/worker-7/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/dpc/rhex 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/dpc/rhex
[INFO] finished tweaking git repo https://github.com/dpc/rhex
[INFO] tweaked toml for git repo https://github.com/dpc/rhex written to /workspace/builds/worker-7/source/Cargo.toml
[INFO] crate git repo https://github.com/dpc/rhex 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-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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] 877a5878355e0f7c77a4c6c31328eac228648d67b9f900fead3e6685d34921d8
[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" "877a5878355e0f7c77a4c6c31328eac228648d67b9f900fead3e6685d34921d8"`
[INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted
[INFO] [stderr]    Compiling libc v0.2.36
[INFO] [stderr]    Compiling num-traits v0.1.42
[INFO] [stderr]    Compiling rustc-serialize v0.3.24
[INFO] [stderr]    Compiling cfg-if v0.1.2
[INFO] [stderr]    Compiling pkg-config v0.3.9
[INFO] [stderr]    Compiling gcc v0.3.54
[INFO] [stderr]    Compiling fnv v1.0.6
[INFO] [stderr]    Compiling log v0.4.1
[INFO] [stderr]    Compiling dpc-simplemap v0.1.0
[INFO] [stderr]    Compiling log v0.3.9
[INFO] [stderr]    Compiling fern v0.3.5
[INFO] [stderr]    Compiling rand v0.3.20
[INFO] [stderr]    Compiling rand v0.4.2
[INFO] [stderr]    Compiling time v0.1.39
[INFO] [stderr]    Compiling num-integer v0.1.35
[INFO] [stderr]    Compiling num-iter v0.1.34
[INFO] [stderr]    Compiling ncurses v5.91.0
[INFO] [stderr]    Compiling num-bigint v0.1.41
[INFO] [stderr]    Compiling num-complex v0.1.41
[INFO] [stderr]    Compiling num-rational v0.1.41
[INFO] [stderr]    Compiling num v0.1.41
[INFO] [stderr]    Compiling hex2d v0.2.0
[INFO] [stderr]    Compiling chrono v0.2.25
[INFO] [stderr]    Compiling hex2d-dpcext v0.0.9
[INFO] [stderr] error[E0277]: the trait bound `u32: num::Signed` is not satisfied
[INFO] [stderr]    --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/hex2d-dpcext-0.0.9/src/algo.rs:235:13
[INFO] [stderr]     |
[INFO] [stderr] 228 | /     fn los_check_line<FOpaqueness, I=u32>(
[INFO] [stderr] 229 | |         opaqueness : &FOpaqueness,
[INFO] [stderr] 230 | |         light: I,
[INFO] [stderr] 231 | |         start : Coordinate<I>,
[INFO] [stderr] ...   |
[INFO] [stderr] 235 | |         I : hex2d::Integer,
[INFO] [stderr]     | |             ^^^^^^^^^^^^^^ the trait `num::Signed` is not implemented for `u32`
[INFO] [stderr] ...   |
[INFO] [stderr] 266 | |         }
[INFO] [stderr] 267 | |     }
[INFO] [stderr]     | |_____- required by `algo::los2::los_check_line`
[INFO] [stderr]     |
[INFO] [stderr]     = note: required because of the requirements on the impl of `hex2d::Integer` for `u32`
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to previous error
[INFO] [stderr] 
[INFO] [stderr] For more information about this error, try `rustc --explain E0277`.
[INFO] [stderr] error: could not compile `hex2d-dpcext`.
[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" "877a5878355e0f7c77a4c6c31328eac228648d67b9f900fead3e6685d34921d8"`
[INFO] running `"docker" "rm" "-f" "877a5878355e0f7c77a4c6c31328eac228648d67b9f900fead3e6685d34921d8"`
[INFO] [stdout] 877a5878355e0f7c77a4c6c31328eac228648d67b9f900fead3e6685d34921d8