[INFO] cloning repository https://github.com/Axect/NSCool
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/Axect/NSCool" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FAxect%2FNSCool", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FAxect%2FNSCool'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 50e3c006a30c673a235c04129b8a0255e605b2e4
[INFO] documenting Axect/NSCool against 1.46.0 for beta-1.47-rustdoc-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FAxect%2FNSCool" "/workspace/builds/worker-4/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/Axect/NSCool on toolchain 1.46.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.46.0" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/Axect/NSCool
[INFO] finished tweaking git repo https://github.com/Axect/NSCool
[INFO] tweaked toml for git repo https://github.com/Axect/NSCool written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] crate git repo https://github.com/Axect/NSCool already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.46.0" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+1.46.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] e517e68c4498b728ed540ca93b220d69915e789d4ff446c3d5e4d69359f82de4
[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" "e517e68c4498b728ed540ca93b220d69915e789d4ff446c3d5e4d69359f82de4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "e517e68c4498b728ed540ca93b220d69915e789d4ff446c3d5e4d69359f82de4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e517e68c4498b728ed540ca93b220d69915e789d4ff446c3d5e4d69359f82de4", kill_on_drop: false }`
[INFO] [stdout] e517e68c4498b728ed540ca93b220d69915e789d4ff446c3d5e4d69359f82de4
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "RUSTDOCFLAGS=--cap-lints=warn" "-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:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+1.46.0" "doc" "--frozen" "--no-deps" "--document-private-items" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 08d44448756e6eb1dd5005469900779dce190e184582e5306a072191c5d047ea
[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" "08d44448756e6eb1dd5005469900779dce190e184582e5306a072191c5d047ea", kill_on_drop: false }`
[INFO] [stderr]    Compiling netcdf-sys v0.2.1
[INFO] [stderr]    Compiling packed_simd v0.3.3
[INFO] [stderr]    Compiling peroxide v0.21.1
[INFO] [stderr]     Checking json v0.12.1
[INFO] [stderr]     Checking order-stat v0.1.3
[INFO] [stderr]     Checking puruspe v0.1.3
[INFO] [stderr]     Checking csv-core v0.1.10
[INFO] [stderr]     Checking lapack-sys v0.12.1
[INFO] [stderr]     Checking blas-sys v0.7.1
[INFO] [stderr]     Checking regex-automata v0.1.8
[INFO] [stderr]     Checking rand_chacha v0.2.1
[INFO] [stderr]    Compiling nscool v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Checking blas v0.20.0
[INFO] [stderr]     Checking rand v0.7.3
[INFO] [stderr]     Checking lapack v0.16.0
[INFO] [stderr]     Checking bstr v0.2.11
[INFO] [stderr]     Checking netcdf v0.2.0
[INFO] [stderr]     Checking csv v1.1.3
[INFO] [stderr]     Checking rand_distr v0.2.2
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/packed_simd-0.3.3/src/lib.rs:202:1
[INFO] [stdout]     |
[INFO] [stdout] 202 | / #![feature(
[INFO] [stdout] 203 | |     repr_simd,
[INFO] [stdout] 204 | |     const_fn,
[INFO] [stdout] 205 | |     platform_intrinsics,
[INFO] [stdout] ...   |
[INFO] [stdout] 215 | |     custom_inner_attributes
[INFO] [stdout] 216 | | )]
[INFO] [stdout]     | |__^
[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 E0554`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `packed_simd`.
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `Command { std: "docker" "inspect" "08d44448756e6eb1dd5005469900779dce190e184582e5306a072191c5d047ea", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "08d44448756e6eb1dd5005469900779dce190e184582e5306a072191c5d047ea", kill_on_drop: false }`
[INFO] [stdout] 08d44448756e6eb1dd5005469900779dce190e184582e5306a072191c5d047ea