[INFO] updating cached repository vbe0201/moo
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/vbe0201/moo
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/vbe0201/moo" "work/ex/beta-1.38-1/sources/1.37.0/gh/vbe0201/moo"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/1.37.0/gh/vbe0201/moo'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/vbe0201/moo" "work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/vbe0201/moo"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/vbe0201/moo'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] e69603432479998bfcaa101bf9c1029d79ee9b77
[INFO] sha for GitHub repo vbe0201/moo: e69603432479998bfcaa101bf9c1029d79ee9b77
[INFO] validating manifest of vbe0201/moo on toolchain 1.37.0
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.37.0" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of vbe0201/moo on toolchain beta-2019-08-13
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-08-13" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing vbe0201/moo
[INFO] finished frobbing vbe0201/moo
[INFO] frobbed toml for vbe0201/moo written to work/ex/beta-1.38-1/sources/1.37.0/gh/vbe0201/moo/Cargo.toml
[INFO] started frobbing vbe0201/moo
[INFO] finished frobbing vbe0201/moo
[INFO] frobbed toml for vbe0201/moo written to work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/vbe0201/moo/Cargo.toml
[INFO] crate vbe0201/moo already has a lockfile, it will not be regenerated
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.37.0" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-08-13" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] testing vbe0201/moo against 1.37.0 for beta-1.38-1
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-2/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/vbe0201/moo:/opt/crater/workdir:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/opt/crater/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/opt/crater/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/crater/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/crater/cargo-home" "-e" "RUSTUP_HOME=/opt/crater/rustup-home" "-w" "/opt/crater/workdir" "-m" "1536M" "--network" "none" "rustops/crates-build-env" "/opt/crater/cargo-home/bin/cargo" "+1.37.0" "build" "--frozen"`
[INFO] [stdout] 191ec7b89c1af963dcd64fba79f639b882cbcc4f7eaec35f08275fa475f11cbb
[INFO] running `"docker" "start" "-a" "191ec7b89c1af963dcd64fba79f639b882cbcc4f7eaec35f08275fa475f11cbb"`
[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" "191ec7b89c1af963dcd64fba79f639b882cbcc4f7eaec35f08275fa475f11cbb"`
[INFO] running `"docker" "rm" "-f" "191ec7b89c1af963dcd64fba79f639b882cbcc4f7eaec35f08275fa475f11cbb"`
[INFO] [stdout] 191ec7b89c1af963dcd64fba79f639b882cbcc4f7eaec35f08275fa475f11cbb