[INFO] cloning repository https://github.com/dpc/rhex
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/dpc/rhex" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdpc%2Frhex", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdpc%2Frhex'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 1359daa83889e204d5075c88159e6b507353ea72
[INFO] checking dpc/rhex against try#d990716b6a1fdde1300748828a9c9e79dfd0b898 for pr-74846
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdpc%2Frhex" "/workspace/builds/worker-2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/dpc/rhex on toolchain d990716b6a1fdde1300748828a9c9e79dfd0b898
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+d990716b6a1fdde1300748828a9c9e79dfd0b898" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[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-2/source/Cargo.toml
[INFO] crate git repo https://github.com/dpc/rhex already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+d990716b6a1fdde1300748828a9c9e79dfd0b898" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded num-rational v0.1.41
[INFO] [stderr]   Downloaded num-complex v0.1.41
[INFO] [stderr]   Downloaded semver v0.2.3
[INFO] [stderr]   Downloaded toml v0.1.30
[INFO] [stderr]   Downloaded winapi v0.3.4
[INFO] [stderr]   Downloaded num-iter v0.1.34
[INFO] [stderr]   Downloaded cfg-if v0.1.2
[INFO] [stderr]   Downloaded time v0.1.39
[INFO] [stderr]   Downloaded bitflags v1.0.1
[INFO] [stderr]   Downloaded ncurses v5.91.0
[INFO] [stderr]   Downloaded num-traits v0.1.42
[INFO] [stderr]   Downloaded num-integer v0.1.35
[INFO] [stderr]   Downloaded regex-syntax v0.3.9
[INFO] [stderr]   Downloaded chrono v0.2.25
[INFO] [stderr]   Downloaded rand v0.4.2
[INFO] [stderr]   Downloaded redox_syscall v0.1.37
[INFO] [stderr]   Downloaded quine-mc_cluskey v0.2.4
[INFO] [stderr]   Downloaded unicode-normalization v0.1.5
[INFO] [stderr]   Downloaded pkg-config v0.3.9
[INFO] [stderr]   Downloaded libc v0.2.36
[INFO] [stderr]   Downloaded nom v1.2.4
[INFO] [stderr]   Downloaded num v0.1.41
[INFO] [stderr]   Downloaded log v0.4.1
[INFO] [stderr]   Downloaded hex2d-dpcext v0.0.9
[INFO] [stderr]   Downloaded dpc-simplemap v0.1.0
[INFO] [stderr]   Downloaded num-bigint v0.1.41
[INFO] [stderr]   Downloaded matches v0.1.6
[INFO] [stderr]   Downloaded clippy v0.0.74
[INFO] [stderr]   Downloaded gcc v0.3.54
[INFO] [stderr]   Downloaded clippy_lints v0.0.74
[INFO] [stderr]   Downloaded hex2d v0.2.0
[INFO] [stderr]   Downloaded rand v0.3.20
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "rustops/crates-build-env@sha256:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+d990716b6a1fdde1300748828a9c9e79dfd0b898" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 063cf58fe8c400590a7af970c28b9496b72aab955f14c2699b1e3e78ed169f92
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "063cf58fe8c400590a7af970c28b9496b72aab955f14c2699b1e3e78ed169f92", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "063cf58fe8c400590a7af970c28b9496b72aab955f14c2699b1e3e78ed169f92", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "063cf58fe8c400590a7af970c28b9496b72aab955f14c2699b1e3e78ed169f92", kill_on_drop: false }`
[INFO] [stdout] 063cf58fe8c400590a7af970c28b9496b72aab955f14c2699b1e3e78ed169f92
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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" "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" "--user" "0:0" "--network" "none" "rustops/crates-build-env@sha256:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+d990716b6a1fdde1300748828a9c9e79dfd0b898" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] f8ef6f82496e6179fe7a9f0c7294e7b8f449adbf1dfacb657ff26d03cf09bd38
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "f8ef6f82496e6179fe7a9f0c7294e7b8f449adbf1dfacb657ff26d03cf09bd38", kill_on_drop: false }`
[INFO] [stderr]     Checking libc v0.2.36
[INFO] [stderr]     Checking num-traits v0.1.42
[INFO] [stderr]     Checking rustc-serialize v0.3.24
[INFO] [stderr]    Compiling pkg-config v0.3.9
[INFO] [stderr]     Checking cfg-if v0.1.2
[INFO] [stderr]     Checking fnv v1.0.6
[INFO] [stderr]     Checking log v0.4.1
[INFO] [stderr]     Checking dpc-simplemap v0.1.0
[INFO] [stderr]     Checking log v0.3.9
[INFO] [stderr]    Compiling ncurses v5.91.0
[INFO] [stderr]     Checking fern v0.3.5
[INFO] [stderr]     Checking rand v0.3.20
[INFO] [stderr]     Checking rand v0.4.2
[INFO] [stderr]     Checking time v0.1.39
[INFO] [stderr]     Checking num-integer v0.1.35
[INFO] [stderr]     Checking num-iter v0.1.34
[INFO] [stderr]     Checking num-bigint v0.1.41
[INFO] [stderr]     Checking num-complex v0.1.41
[INFO] [stderr]     Checking num-rational v0.1.41
[INFO] [stderr]     Checking num v0.1.41
[INFO] [stderr]     Checking hex2d v0.2.0
[INFO] [stderr]     Checking chrono v0.2.25
[INFO] [stderr]     Checking hex2d-dpcext v0.0.9
[INFO] [stdout] error[E0277]: the trait bound `u32: num::Signed` is not satisfied
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/hex2d-dpcext-0.0.9/src/algo.rs:235:13
[INFO] [stdout]     |
[INFO] [stdout] 228 | /     fn los_check_line<FOpaqueness, I=u32>(
[INFO] [stdout] 229 | |         opaqueness : &FOpaqueness,
[INFO] [stdout] 230 | |         light: I,
[INFO] [stdout] 231 | |         start : Coordinate<I>,
[INFO] [stdout] ...   |
[INFO] [stdout] 235 | |         I : hex2d::Integer,
[INFO] [stdout]     | |             ^^^^^^^^^^^^^^ the trait `num::Signed` is not implemented for `u32`
[INFO] [stdout] ...   |
[INFO] [stdout] 266 | |         }
[INFO] [stdout] 267 | |     }
[INFO] [stdout]     | |_____- required by `algo::los2::los_check_line`
[INFO] [stdout]     |
[INFO] [stdout]     = note: required because of the requirements on the impl of `hex2d::Integer` for `u32`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0277`.
[INFO] [stdout] 
[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 `Command { std: "docker" "inspect" "f8ef6f82496e6179fe7a9f0c7294e7b8f449adbf1dfacb657ff26d03cf09bd38", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f8ef6f82496e6179fe7a9f0c7294e7b8f449adbf1dfacb657ff26d03cf09bd38", kill_on_drop: false }`
[INFO] [stdout] f8ef6f82496e6179fe7a9f0c7294e7b8f449adbf1dfacb657ff26d03cf09bd38