[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 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-7/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/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" "+1.37.0" "build" "--frozen"`
[INFO] [stdout] a7214f88f4f790ac72a7797d5c9a43ada38a39db7e9943fc68a5b3ab270461b7
[INFO] running `"docker" "start" "-a" "a7214f88f4f790ac72a7797d5c9a43ada38a39db7e9943fc68a5b3ab270461b7"`
[INFO] [stderr]    Compiling nix v0.11.0
[INFO] [stderr]    Compiling clock v0.1.0 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 7.46s
[INFO] running `"docker" "inspect" "a7214f88f4f790ac72a7797d5c9a43ada38a39db7e9943fc68a5b3ab270461b7"`
[INFO] running `"docker" "rm" "-f" "a7214f88f4f790ac72a7797d5c9a43ada38a39db7e9943fc68a5b3ab270461b7"`
[INFO] [stdout] a7214f88f4f790ac72a7797d5c9a43ada38a39db7e9943fc68a5b3ab270461b7
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-7/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/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" "+1.37.0" "test" "--frozen" "--no-run"`
[INFO] [stdout] 76e920c59617c90f7a38fd3c3acce639a9a222faf875e6a82bc6280fab93f54f
[INFO] running `"docker" "start" "-a" "76e920c59617c90f7a38fd3c3acce639a9a222faf875e6a82bc6280fab93f54f"`
[INFO] [stderr]    Compiling clock v0.1.0 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.56s
[INFO] running `"docker" "inspect" "76e920c59617c90f7a38fd3c3acce639a9a222faf875e6a82bc6280fab93f54f"`
[INFO] running `"docker" "rm" "-f" "76e920c59617c90f7a38fd3c3acce639a9a222faf875e6a82bc6280fab93f54f"`
[INFO] [stdout] 76e920c59617c90f7a38fd3c3acce639a9a222faf875e6a82bc6280fab93f54f
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-7/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/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" "+1.37.0" "test" "--frozen"`
[INFO] [stdout] c860a3931181b60b0e277173e78a11d87a79a4b5fdb418f232756ec5003687a5
[INFO] running `"docker" "start" "-a" "c860a3931181b60b0e277173e78a11d87a79a4b5fdb418f232756ec5003687a5"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/clock-df13f19df0476afa
[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" "c860a3931181b60b0e277173e78a11d87a79a4b5fdb418f232756ec5003687a5"`
[INFO] running `"docker" "rm" "-f" "c860a3931181b60b0e277173e78a11d87a79a4b5fdb418f232756ec5003687a5"`
[INFO] [stdout] c860a3931181b60b0e277173e78a11d87a79a4b5fdb418f232756ec5003687a5