[INFO] cloning repository https://github.com/colbyn/view-prototype
[INFO] running `"git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/colbyn/view-prototype" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fcolbyn%2Fview-prototype"`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fcolbyn%2Fview-prototype'...
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 688f0a533f17e1548e1dfa9be5c0c841cbd2fd4d
[INFO] checking colbyn/view-prototype against beta-2019-10-27 for pr-65897
[INFO] running `"git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fcolbyn%2Fview-prototype" "/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/colbyn/view-prototype on toolchain beta-2019-10-27
[INFO] running `"/workspace/cargo-home/bin/cargo" "+beta-2019-10-27" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking git repo https://github.com/colbyn/view-prototype
[INFO] finished tweaking git repo https://github.com/colbyn/view-prototype
[INFO] tweaked toml for git repo https://github.com/colbyn/view-prototype written to /workspace/builds/worker-7/source/Cargo.toml
[INFO] crate git repo https://github.com/colbyn/view-prototype already has a lockfile, it will not be regenerated
[INFO] running `"/workspace/cargo-home/bin/cargo" "+beta-2019-10-27" "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=allow" "-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-2019-10-27" "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] 4a63c8d232433d9ad7d132f8564f49631275a381305c1a9f256a6756e11815ac
[INFO] running `"docker" "start" "-a" "4a63c8d232433d9ad7d132f8564f49631275a381305c1a9f256a6756e11815ac"`
[INFO] [stderr]    Compiling syn v0.15.32
[INFO] [stderr]    Compiling wasm-bindgen-shared v0.2.42
[INFO] [stderr]    Compiling bumpalo v2.4.1
[INFO] [stderr]    Compiling wasm-bindgen v0.2.42
[INFO] [stderr]    Compiling termcolor v1.0.4
[INFO] [stderr]    Compiling rand v0.6.5
[INFO] [stderr]    Compiling backtrace-sys v0.1.28
[INFO] [stderr]    Compiling atty v0.2.11
[INFO] [stderr]     Checking rand_os v0.1.3
[INFO] [stderr]    Compiling im v12.3.4
[INFO] [stderr]    Compiling regex v1.1.6
[INFO] [stderr]    Compiling weedle v0.8.0
[INFO] [stderr]    Compiling backtrace v0.3.15
[INFO] [stderr]    Compiling env_logger v0.6.1
[INFO] [stderr]    Compiling wasm-bindgen-backend v0.2.42
[INFO] [stderr]    Compiling synstructure v0.10.1
[INFO] [stderr]    Compiling serde_derive v1.0.90
[INFO] [stderr]    Compiling failure_derive v0.1.5
[INFO] [stderr]    Compiling wasm-bindgen-macro-support v0.2.42
[INFO] [stderr]    Compiling failure v0.1.5
[INFO] [stderr]    Compiling wasm-bindgen-webidl v0.2.42
[INFO] [stderr]    Compiling wasm-bindgen-macro v0.2.42
[INFO] [stderr]     Checking js-sys v0.3.19
[INFO] [stderr]     Checking console_error_panic_hook v0.1.6
[INFO] [stderr]    Compiling web-sys v0.3.19
[INFO] [stderr]     Checking serde v1.0.90
[INFO] [stderr]     Checking uuid v0.7.4
[INFO] [stderr]     Checking rpds v0.6.0
[INFO] [stderr]     Checking serde_json v1.0.39
[INFO] [stderr]     Checking chrono v0.4.6
[INFO] [stderr]     Checking bincode v1.1.3
[INFO] [stderr]     Checking view-prototype v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2m 42s
[INFO] running `"docker" "inspect" "4a63c8d232433d9ad7d132f8564f49631275a381305c1a9f256a6756e11815ac"`
[INFO] running `"docker" "rm" "-f" "4a63c8d232433d9ad7d132f8564f49631275a381305c1a9f256a6756e11815ac"`
[INFO] [stdout] 4a63c8d232433d9ad7d132f8564f49631275a381305c1a9f256a6756e11815ac