[INFO] updating cached repository balena-io-playground/rtc-cpu-stall
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/balena-io-playground/rtc-cpu-stall
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/balena-io-playground/rtc-cpu-stall" "work/ex/beta-1.38-1/sources/1.37.0/gh/balena-io-playground/rtc-cpu-stall"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/1.37.0/gh/balena-io-playground/rtc-cpu-stall'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/balena-io-playground/rtc-cpu-stall" "work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/balena-io-playground/rtc-cpu-stall"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/balena-io-playground/rtc-cpu-stall'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 106d82266a4df0ee1cce809e5a80163829c2de16
[INFO] sha for GitHub repo balena-io-playground/rtc-cpu-stall: 106d82266a4df0ee1cce809e5a80163829c2de16
[INFO] validating manifest of balena-io-playground/rtc-cpu-stall 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 balena-io-playground/rtc-cpu-stall 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 balena-io-playground/rtc-cpu-stall
[INFO] finished frobbing balena-io-playground/rtc-cpu-stall
[INFO] frobbed toml for balena-io-playground/rtc-cpu-stall written to work/ex/beta-1.38-1/sources/1.37.0/gh/balena-io-playground/rtc-cpu-stall/Cargo.toml
[INFO] started frobbing balena-io-playground/rtc-cpu-stall
[INFO] finished frobbing balena-io-playground/rtc-cpu-stall
[INFO] frobbed toml for balena-io-playground/rtc-cpu-stall written to work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/balena-io-playground/rtc-cpu-stall/Cargo.toml
[INFO] crate balena-io-playground/rtc-cpu-stall 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 balena-io-playground/rtc-cpu-stall against beta-2019-08-13 for beta-1.38-1
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-6/beta-2019-08-13:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/balena-io-playground/rtc-cpu-stall:/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" "+beta-2019-08-13" "build" "--frozen"`
[INFO] [stdout] ac71f6489db27eb5148c250f84d4ca81664d4fecd75c22e6a251a76efde070ce
[INFO] running `"docker" "start" "-a" "ac71f6489db27eb5148c250f84d4ca81664d4fecd75c22e6a251a76efde070ce"`
[INFO] [stderr]    Compiling clock v0.1.0 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.15s
[INFO] running `"docker" "inspect" "ac71f6489db27eb5148c250f84d4ca81664d4fecd75c22e6a251a76efde070ce"`
[INFO] running `"docker" "rm" "-f" "ac71f6489db27eb5148c250f84d4ca81664d4fecd75c22e6a251a76efde070ce"`
[INFO] [stdout] ac71f6489db27eb5148c250f84d4ca81664d4fecd75c22e6a251a76efde070ce
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-6/beta-2019-08-13:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/balena-io-playground/rtc-cpu-stall:/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" "+beta-2019-08-13" "test" "--frozen" "--no-run"`
[INFO] [stdout] ed831e69c280b36fafbfe46ae6a4420d5e7f89d7cfd58c26fdfd496a3f6e3de7
[INFO] running `"docker" "start" "-a" "ed831e69c280b36fafbfe46ae6a4420d5e7f89d7cfd58c26fdfd496a3f6e3de7"`
[INFO] [stderr]    Compiling clock v0.1.0 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.75s
[INFO] running `"docker" "inspect" "ed831e69c280b36fafbfe46ae6a4420d5e7f89d7cfd58c26fdfd496a3f6e3de7"`
[INFO] running `"docker" "rm" "-f" "ed831e69c280b36fafbfe46ae6a4420d5e7f89d7cfd58c26fdfd496a3f6e3de7"`
[INFO] [stdout] ed831e69c280b36fafbfe46ae6a4420d5e7f89d7cfd58c26fdfd496a3f6e3de7
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-6/beta-2019-08-13:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/balena-io-playground/rtc-cpu-stall:/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" "+beta-2019-08-13" "test" "--frozen"`
[INFO] [stdout] 72ec84b01e349105de19f7e3d41dd42a2768636e5e1c4bbee09b63aeec080ae8
[INFO] running `"docker" "start" "-a" "72ec84b01e349105de19f7e3d41dd42a2768636e5e1c4bbee09b63aeec080ae8"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/clock-86e72974ba319d38
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] running `"docker" "inspect" "72ec84b01e349105de19f7e3d41dd42a2768636e5e1c4bbee09b63aeec080ae8"`
[INFO] running `"docker" "rm" "-f" "72ec84b01e349105de19f7e3d41dd42a2768636e5e1c4bbee09b63aeec080ae8"`
[INFO] [stdout] 72ec84b01e349105de19f7e3d41dd42a2768636e5e1c4bbee09b63aeec080ae8