[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 1.55.0 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-10/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-10/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/balena-io-playground/rtc-cpu-stall on toolchain 1.55.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "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-10/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" "+1.55.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/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" "+1.55.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 968d16524efc8b3d6402f6d5b1909cb901b920c09383b52eee9759d69d3fa0ab
[INFO] running `Command { std: "docker" "start" "-a" "968d16524efc8b3d6402f6d5b1909cb901b920c09383b52eee9759d69d3fa0ab", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "968d16524efc8b3d6402f6d5b1909cb901b920c09383b52eee9759d69d3fa0ab", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "968d16524efc8b3d6402f6d5b1909cb901b920c09383b52eee9759d69d3fa0ab", kill_on_drop: false }`
[INFO] [stdout] 968d16524efc8b3d6402f6d5b1909cb901b920c09383b52eee9759d69d3fa0ab
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/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" "+1.55.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] db4bd43ec2c361a017ef8ed81cf50b9bbe1e0ef5c85bcd69d64c5df27cb9b9fc
[INFO] running `Command { std: "docker" "start" "-a" "db4bd43ec2c361a017ef8ed81cf50b9bbe1e0ef5c85bcd69d64c5df27cb9b9fc", kill_on_drop: false }`
[INFO] [stderr]    Compiling nix v0.11.0
[INFO] [stderr]    Compiling cfg-if v0.1.6
[INFO] [stderr]    Compiling libc v0.2.43
[INFO] [stderr]    Compiling clock v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 7.18s
[INFO] running `Command { std: "docker" "inspect" "db4bd43ec2c361a017ef8ed81cf50b9bbe1e0ef5c85bcd69d64c5df27cb9b9fc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "db4bd43ec2c361a017ef8ed81cf50b9bbe1e0ef5c85bcd69d64c5df27cb9b9fc", kill_on_drop: false }`
[INFO] [stdout] db4bd43ec2c361a017ef8ed81cf50b9bbe1e0ef5c85bcd69d64c5df27cb9b9fc
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/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" "+1.55.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 833a3792140e32d432c0e7509f8875cbe8bdd56d342853a8259e61fb6ec93459
[INFO] running `Command { std: "docker" "start" "-a" "833a3792140e32d432c0e7509f8875cbe8bdd56d342853a8259e61fb6ec93459", kill_on_drop: false }`
[INFO] [stderr]    Compiling clock v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.74s
[INFO] running `Command { std: "docker" "inspect" "833a3792140e32d432c0e7509f8875cbe8bdd56d342853a8259e61fb6ec93459", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "833a3792140e32d432c0e7509f8875cbe8bdd56d342853a8259e61fb6ec93459", kill_on_drop: false }`
[INFO] [stdout] 833a3792140e32d432c0e7509f8875cbe8bdd56d342853a8259e61fb6ec93459
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/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" "+1.55.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] e779c54070dae8c3835cab5bfb8bef47eb7fe1576f89481f70df2471d2580ff4
[INFO] running `Command { std: "docker" "start" "-a" "e779c54070dae8c3835cab5bfb8bef47eb7fe1576f89481f70df2471d2580ff4", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stdout] 
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/clock-d913a646bad7ad16)
[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" "e779c54070dae8c3835cab5bfb8bef47eb7fe1576f89481f70df2471d2580ff4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e779c54070dae8c3835cab5bfb8bef47eb7fe1576f89481f70df2471d2580ff4", kill_on_drop: false }`
[INFO] [stdout] e779c54070dae8c3835cab5bfb8bef47eb7fe1576f89481f70df2471d2580ff4