[INFO] cloning repository https://github.com/balena-io-playground/rtc-cpu-stall
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/balena-io-playground/rtc-cpu-stall" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fbalena-io-playground%2Frtc-cpu-stall", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fbalena-io-playground%2Frtc-cpu-stall'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 106d82266a4df0ee1cce809e5a80163829c2de16
[INFO] testing balena-io-playground/rtc-cpu-stall against beta-2021-09-08 for beta-1.56-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fbalena-io-playground%2Frtc-cpu-stall" "/workspace/builds/worker-7/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-7/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/balena-io-playground/rtc-cpu-stall on toolchain beta-2021-09-08
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-09-08" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/balena-io-playground/rtc-cpu-stall
[INFO] finished tweaking git repo https://github.com/balena-io-playground/rtc-cpu-stall
[INFO] tweaked toml for git repo https://github.com/balena-io-playground/rtc-cpu-stall written to /workspace/builds/worker-7/source/Cargo.toml
[INFO] crate git repo https://github.com/balena-io-playground/rtc-cpu-stall already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-09-08" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-09-08" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 5e23184aea54fb5428585bfe8bcebd30a7a3eb7d62c5027827ebed0ba64c3ca6
[INFO] running `Command { std: "docker" "start" "-a" "5e23184aea54fb5428585bfe8bcebd30a7a3eb7d62c5027827ebed0ba64c3ca6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "5e23184aea54fb5428585bfe8bcebd30a7a3eb7d62c5027827ebed0ba64c3ca6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5e23184aea54fb5428585bfe8bcebd30a7a3eb7d62c5027827ebed0ba64c3ca6", kill_on_drop: false }`
[INFO] [stdout] 5e23184aea54fb5428585bfe8bcebd30a7a3eb7d62c5027827ebed0ba64c3ca6
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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" "RUSTFLAGS=--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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-09-08" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 63a8e6685427e84ab295c644debac3764506e512c517e8d5396705c2d12e3c01
[INFO] running `Command { std: "docker" "start" "-a" "63a8e6685427e84ab295c644debac3764506e512c517e8d5396705c2d12e3c01", kill_on_drop: false }`
[INFO] [stderr]    Compiling nix v0.11.0
[INFO] [stderr]    Compiling void v1.0.2
[INFO] [stderr]    Compiling clock v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 7.49s
[INFO] running `Command { std: "docker" "inspect" "63a8e6685427e84ab295c644debac3764506e512c517e8d5396705c2d12e3c01", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "63a8e6685427e84ab295c644debac3764506e512c517e8d5396705c2d12e3c01", kill_on_drop: false }`
[INFO] [stdout] 63a8e6685427e84ab295c644debac3764506e512c517e8d5396705c2d12e3c01
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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" "RUSTFLAGS=--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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-09-08" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 57d034078b4f49208ba24f2df840cb96c55e1e67c62ec11ed40fddc8c693bd27
[INFO] running `Command { std: "docker" "start" "-a" "57d034078b4f49208ba24f2df840cb96c55e1e67c62ec11ed40fddc8c693bd27", kill_on_drop: false }`
[INFO] [stderr]    Compiling clock v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.81s
[INFO] running `Command { std: "docker" "inspect" "57d034078b4f49208ba24f2df840cb96c55e1e67c62ec11ed40fddc8c693bd27", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "57d034078b4f49208ba24f2df840cb96c55e1e67c62ec11ed40fddc8c693bd27", kill_on_drop: false }`
[INFO] [stdout] 57d034078b4f49208ba24f2df840cb96c55e1e67c62ec11ed40fddc8c693bd27
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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" "RUSTFLAGS=--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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-09-08" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 8b8e64db469b497f16c6054ddefb48c9ae687623ae8a493a6f610b9749a3c6a2
[INFO] running `Command { std: "docker" "start" "-a" "8b8e64db469b497f16c6054ddefb48c9ae687623ae8a493a6f610b9749a3c6a2", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/clock-5773f71cb99f6dc1)
[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; finished in 0.00s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "8b8e64db469b497f16c6054ddefb48c9ae687623ae8a493a6f610b9749a3c6a2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8b8e64db469b497f16c6054ddefb48c9ae687623ae8a493a6f610b9749a3c6a2", kill_on_drop: false }`
[INFO] [stdout] 8b8e64db469b497f16c6054ddefb48c9ae687623ae8a493a6f610b9749a3c6a2