[INFO] fetching crate iso639_2 0.1.13...
[INFO] checking iso639_2-0.1.13 against beta for pr-78714
[INFO] extracting crate iso639_2 0.1.13 into /workspace/builds/worker-2/source
[INFO] validating manifest of crates.io crate iso639_2 0.1.13 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 crates.io crate iso639_2 0.1.13
[INFO] finished tweaking crates.io crate iso639_2 0.1.13
[INFO] tweaked toml for crates.io crate iso639_2 0.1.13 written to /workspace/builds/worker-2/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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] 372132e366a1f1c2e07f0a64133793126fdebcdc4a2c7fe98ecc9e998a3e4835
[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" "372132e366a1f1c2e07f0a64133793126fdebcdc4a2c7fe98ecc9e998a3e4835", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "372132e366a1f1c2e07f0a64133793126fdebcdc4a2c7fe98ecc9e998a3e4835", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "372132e366a1f1c2e07f0a64133793126fdebcdc4a2c7fe98ecc9e998a3e4835", kill_on_drop: false }`
[INFO] [stdout] 372132e366a1f1c2e07f0a64133793126fdebcdc4a2c7fe98ecc9e998a3e4835
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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] 047dd0c35608d4506ea7088f6f6793675af3745880b5291951e56a0221c44611
[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" "047dd0c35608d4506ea7088f6f6793675af3745880b5291951e56a0221c44611", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Checking iso639_2 v0.1.13 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.69s
[INFO] running `Command { std: "docker" "inspect" "047dd0c35608d4506ea7088f6f6793675af3745880b5291951e56a0221c44611", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "047dd0c35608d4506ea7088f6f6793675af3745880b5291951e56a0221c44611", kill_on_drop: false }`
[INFO] [stdout] 047dd0c35608d4506ea7088f6f6793675af3745880b5291951e56a0221c44611