[INFO] updating cached repository https://github.com/vbe0201/moo
[INFO] running `"git" "-c" "credential.helper=" "-c" "credential.helper=/big/crater/work/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] e69603432479998bfcaa101bf9c1029d79ee9b77
[INFO] testing vbe0201/moo against beta-2019-09-28 for beta-1.39-1
[INFO] running `"git" "clone" "work/cache/git-repos/https%3A%2F%2Fgithub.com%2Fvbe0201%2Fmoo" "work/builds/worker-4/source"`
[INFO] [stderr] Cloning into 'work/builds/worker-4/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/vbe0201/moo on toolchain beta-2019-09-28
[INFO] running `"/big/crater/work/cargo-home/bin/cargo" "+beta-2019-09-28" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking git repo https://github.com/vbe0201/moo
[INFO] finished tweaking git repo https://github.com/vbe0201/moo
[INFO] tweaked toml for git repo https://github.com/vbe0201/moo written to work/builds/worker-4/source/Cargo.toml
[INFO] crate git repo https://github.com/vbe0201/moo already has a lockfile, it will not be regenerated
[INFO] running `"/big/crater/work/cargo-home/bin/cargo" "+beta-2019-09-28" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/big/crater/work/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/big/crater/work/builds/worker-4/source:/opt/rustwide/workdir:ro,Z" "-v" "/big/crater/work/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/big/crater/work/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "MAP_USER_ID=1000" "-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-2019-09-28" "build" "--frozen"`
[INFO] [stdout] 5d2503f1fde211893af0e478ed5a224eccb73e1e16e593c8bb64c9ed309f5e6e
[INFO] running `"docker" "start" "-a" "5d2503f1fde211893af0e478ed5a224eccb73e1e16e593c8bb64c9ed309f5e6e"`
[INFO] [stderr]    Compiling autocfg v0.1.4
[INFO] [stderr]    Compiling tock-registers v0.3.0
[INFO] [stderr] error: Error loading target specification: Could not find specification for target "arm-moo-none"
[INFO] [stderr]   |
[INFO] [stderr]   = help: Use `--print target-list` for a list of built-in targets
[INFO] [stderr] 
[INFO] [stderr] error: could not compile `tock-registers`.
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: build failed
[INFO] running `"docker" "inspect" "5d2503f1fde211893af0e478ed5a224eccb73e1e16e593c8bb64c9ed309f5e6e"`
[INFO] running `"docker" "rm" "-f" "5d2503f1fde211893af0e478ed5a224eccb73e1e16e593c8bb64c9ed309f5e6e"`
[INFO] [stdout] 5d2503f1fde211893af0e478ed5a224eccb73e1e16e593c8bb64c9ed309f5e6e