[INFO] fetching crate encodings 0.1.0...
[INFO] checking encodings-0.1.0 against beta-2020-07-24 for pr-75494-beta
[INFO] extracting crate encodings 0.1.0 into /workspace/builds/worker-4/source
[INFO] validating manifest of crates.io crate encodings 0.1.0 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 encodings 0.1.0
[INFO] finished tweaking crates.io crate encodings 0.1.0
[INFO] tweaked toml for crates.io crate encodings 0.1.0 written to /workspace/builds/worker-4/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] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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] 6ec344ef7b753dfcdf4d0d87434812f2fdca0b5b9660b1dfe5765af75813ab59
[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" "6ec344ef7b753dfcdf4d0d87434812f2fdca0b5b9660b1dfe5765af75813ab59", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "6ec344ef7b753dfcdf4d0d87434812f2fdca0b5b9660b1dfe5765af75813ab59", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6ec344ef7b753dfcdf4d0d87434812f2fdca0b5b9660b1dfe5765af75813ab59", kill_on_drop: false }`
[INFO] [stdout] 6ec344ef7b753dfcdf4d0d87434812f2fdca0b5b9660b1dfe5765af75813ab59
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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] [stdout] 40a5706c4145fb1fc859f25491536f7a40f07ac92adba5446a3468f1b498f0ca
[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" "40a5706c4145fb1fc859f25491536f7a40f07ac92adba5446a3468f1b498f0ca", kill_on_drop: false }`
[INFO] [stderr]     Checking encodings v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.51s
[INFO] running `Command { std: "docker" "inspect" "40a5706c4145fb1fc859f25491536f7a40f07ac92adba5446a3468f1b498f0ca", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "40a5706c4145fb1fc859f25491536f7a40f07ac92adba5446a3468f1b498f0ca", kill_on_drop: false }`
[INFO] [stdout] 40a5706c4145fb1fc859f25491536f7a40f07ac92adba5446a3468f1b498f0ca
