[INFO] fetching crate rc-u8-reader 2.0.12...
[INFO] checking rc-u8-reader-2.0.12 against beta-2020-07-24 for pr-75494-beta
[INFO] extracting crate rc-u8-reader 2.0.12 into /workspace/builds/worker-1/source
[INFO] validating manifest of crates.io crate rc-u8-reader 2.0.12 on toolchain beta-2020-07-24
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2020-07-24" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate rc-u8-reader 2.0.12
[INFO] finished tweaking crates.io crate rc-u8-reader 2.0.12
[INFO] tweaked toml for crates.io crate rc-u8-reader 2.0.12 written to /workspace/builds/worker-1/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2020-07-24" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2020-07-24" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2020-07-24" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] a53ebd72525d0b3b8e30486d719d6c7f36289405a04f63dfb753b522d2f4e6f3
[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" "a53ebd72525d0b3b8e30486d719d6c7f36289405a04f63dfb753b522d2f4e6f3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "a53ebd72525d0b3b8e30486d719d6c7f36289405a04f63dfb753b522d2f4e6f3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a53ebd72525d0b3b8e30486d719d6c7f36289405a04f63dfb753b522d2f4e6f3", kill_on_drop: false }`
[INFO] [stdout] a53ebd72525d0b3b8e30486d719d6c7f36289405a04f63dfb753b522d2f4e6f3
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2020-07-24" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] d7624a49fbddf9385ae1fae603fd5d77eb35d811ccd3817f261ecec10e5c6469
[INFO] running `Command { std: "docker" "start" "-a" "d7624a49fbddf9385ae1fae603fd5d77eb35d811ccd3817f261ecec10e5c6469", kill_on_drop: false }`
[INFO] [stderr]     Checking debug-helper v0.3.10
[INFO] [stderr]     Checking rc-u8-reader v2.0.12 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.70s
[INFO] running `Command { std: "docker" "inspect" "d7624a49fbddf9385ae1fae603fd5d77eb35d811ccd3817f261ecec10e5c6469", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d7624a49fbddf9385ae1fae603fd5d77eb35d811ccd3817f261ecec10e5c6469", kill_on_drop: false }`
[INFO] [stdout] d7624a49fbddf9385ae1fae603fd5d77eb35d811ccd3817f261ecec10e5c6469
