[INFO] fetching crate caret 0.0.0...
[INFO] building caret-0.0.0 against master#d5c88c22807925c189328ef9d923c5d2b11a95b8 for pr-87066-3
[INFO] extracting crate caret 0.0.0 into /workspace/builds/worker-6/source
[INFO] validating manifest of crates.io crate caret 0.0.0 on toolchain d5c88c22807925c189328ef9d923c5d2b11a95b8
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+d5c88c22807925c189328ef9d923c5d2b11a95b8" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate caret 0.0.0
[INFO] finished tweaking crates.io crate caret 0.0.0
[INFO] tweaked toml for crates.io crate caret 0.0.0 written to /workspace/builds/worker-6/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+d5c88c22807925c189328ef9d923c5d2b11a95b8" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+d5c88c22807925c189328ef9d923c5d2b11a95b8" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+d5c88c22807925c189328ef9d923c5d2b11a95b8" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 2d132ffcbb64d6aee267f0c7e1f9ad3eaf8ea9aaf342ca4125eb1b56f045d60d
[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" "2d132ffcbb64d6aee267f0c7e1f9ad3eaf8ea9aaf342ca4125eb1b56f045d60d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "2d132ffcbb64d6aee267f0c7e1f9ad3eaf8ea9aaf342ca4125eb1b56f045d60d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2d132ffcbb64d6aee267f0c7e1f9ad3eaf8ea9aaf342ca4125eb1b56f045d60d", kill_on_drop: false }`
[INFO] [stdout] 2d132ffcbb64d6aee267f0c7e1f9ad3eaf8ea9aaf342ca4125eb1b56f045d60d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+d5c88c22807925c189328ef9d923c5d2b11a95b8" "build" "--frozen" "--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] ca6f19995fcb15afc2745228bb4d0a73579abdb2206f30d4006cd15344fd800f
[INFO] running `Command { std: "docker" "start" "-a" "ca6f19995fcb15afc2745228bb4d0a73579abdb2206f30d4006cd15344fd800f", kill_on_drop: false }`
[INFO] [stderr]    Compiling caret v0.0.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.23s
[INFO] running `Command { std: "docker" "inspect" "ca6f19995fcb15afc2745228bb4d0a73579abdb2206f30d4006cd15344fd800f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ca6f19995fcb15afc2745228bb4d0a73579abdb2206f30d4006cd15344fd800f", kill_on_drop: false }`
[INFO] [stdout] ca6f19995fcb15afc2745228bb4d0a73579abdb2206f30d4006cd15344fd800f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+d5c88c22807925c189328ef9d923c5d2b11a95b8" "test" "--frozen" "--no-run" "--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] bf07189fc16c960c9b51f9437d37aa9b07d481fc9b5c1783152af63706aa6b82
[INFO] running `Command { std: "docker" "start" "-a" "bf07189fc16c960c9b51f9437d37aa9b07d481fc9b5c1783152af63706aa6b82", kill_on_drop: false }`
[INFO] [stderr]    Compiling caret v0.0.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.92s
[INFO] running `Command { std: "docker" "inspect" "bf07189fc16c960c9b51f9437d37aa9b07d481fc9b5c1783152af63706aa6b82", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "bf07189fc16c960c9b51f9437d37aa9b07d481fc9b5c1783152af63706aa6b82", kill_on_drop: false }`
[INFO] [stdout] bf07189fc16c960c9b51f9437d37aa9b07d481fc9b5c1783152af63706aa6b82