[INFO] cloning repository https://github.com/jbg/backlightd
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/jbg/backlightd" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjbg%2Fbacklightd", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjbg%2Fbacklightd'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 7d114a1e15e6716e2de011bb1920c63a87675d31
[INFO] checking jbg/backlightd against beta for pr-78714
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjbg%2Fbacklightd" "/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/jbg/backlightd on toolchain beta
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/jbg/backlightd
[INFO] finished tweaking git repo https://github.com/jbg/backlightd
[INFO] tweaked toml for git repo https://github.com/jbg/backlightd written to /workspace/builds/worker-7/source/Cargo.toml
[INFO] crate git repo https://github.com/jbg/backlightd already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded matches v0.1.6
[INFO] [stderr]   Downloaded percent-encoding v1.0.0
[INFO] [stderr]   Downloaded getopts v0.2.15
[INFO] [stderr]   Downloaded toml v0.4.5
[INFO] [stderr]   Downloaded quine-mc_cluskey v0.2.4
[INFO] [stderr]   Downloaded semver-parser v0.7.0
[INFO] [stderr]   Downloaded unicode-bidi v0.3.4
[INFO] [stderr]   Downloaded either v1.3.0
[INFO] [stderr]   Downloaded cargo_metadata v0.2.3
[INFO] [stderr]   Downloaded itertools v0.6.5
[INFO] [stderr]   Downloaded num-traits v0.1.40
[INFO] [stderr]   Downloaded serde_json v1.0.4
[INFO] [stderr]   Downloaded dtoa v0.4.2
[INFO] [stderr]   Downloaded itoa v0.3.4
[INFO] [stderr]   Downloaded url v1.5.1
[INFO] [stderr]   Downloaded lazy_static v0.2.9
[INFO] [stderr]   Downloaded quote v0.3.15
[INFO] [stderr]   Downloaded regex-syntax v0.4.1
[INFO] [stderr]   Downloaded semver v0.6.0
[INFO] [stderr]   Downloaded bitflags v0.9.1
[INFO] [stderr]   Downloaded syn v0.11.11
[INFO] [stderr]   Downloaded synom v0.11.3
[INFO] [stderr]   Downloaded unicode-xid v0.0.4
[INFO] [stderr]   Downloaded serde_derive_internals v0.16.0
[INFO] [stderr]   Downloaded unicode-normalization v0.1.5
[INFO] [stderr]   Downloaded clippy_lints v0.0.166
[INFO] [stderr]   Downloaded pulldown-cmark v0.0.15
[INFO] [stderr]   Downloaded idna v0.1.4
[INFO] [stderr]   Downloaded clippy v0.0.166
[INFO] [stderr]   Downloaded serde_derive v1.0.16
[INFO] [stderr]   Downloaded serde v1.0.16
[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" "rustops/crates-build-env@sha256:6eabd152ff4036248d66efda456a36cb33d24b7291b33f25f75140726c88da35" "/opt/rustwide/cargo-home/bin/cargo" "+beta" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 7443ae05cdfed033868243d768d124b5276d03c479d487339cb4c82436b00a1a
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "7443ae05cdfed033868243d768d124b5276d03c479d487339cb4c82436b00a1a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "7443ae05cdfed033868243d768d124b5276d03c479d487339cb4c82436b00a1a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7443ae05cdfed033868243d768d124b5276d03c479d487339cb4c82436b00a1a", kill_on_drop: false }`
[INFO] [stdout] 7443ae05cdfed033868243d768d124b5276d03c479d487339cb4c82436b00a1a
[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=forbid" "-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" "rustops/crates-build-env@sha256:6eabd152ff4036248d66efda456a36cb33d24b7291b33f25f75140726c88da35" "/opt/rustwide/cargo-home/bin/cargo" "+beta" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] b98c3a1460fa9fca4201133b41828e7a454b2858c1f8bc97a806a1e6c39de370
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "b98c3a1460fa9fca4201133b41828e7a454b2858c1f8bc97a806a1e6c39de370", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Checking backlightd v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 3.59s
[INFO] running `Command { std: "docker" "inspect" "b98c3a1460fa9fca4201133b41828e7a454b2858c1f8bc97a806a1e6c39de370", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b98c3a1460fa9fca4201133b41828e7a454b2858c1f8bc97a806a1e6c39de370", kill_on_drop: false }`
[INFO] [stdout] b98c3a1460fa9fca4201133b41828e7a454b2858c1f8bc97a806a1e6c39de370