[INFO] fetching crate unsafe-io 0.8.2...
[INFO] building unsafe-io-0.8.2 against master#d5c88c22807925c189328ef9d923c5d2b11a95b8 for pr-87066-3
[INFO] extracting crate unsafe-io 0.8.2 into /workspace/builds/worker-7/source
[INFO] validating manifest of crates.io crate unsafe-io 0.8.2 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 unsafe-io 0.8.2
[INFO] finished tweaking crates.io crate unsafe-io 0.8.2
[INFO] tweaked toml for crates.io crate unsafe-io 0.8.2 written to /workspace/builds/worker-7/source/Cargo.toml
[INFO] crate crates.io crate unsafe-io 0.8.2 already has a lockfile, it will not be regenerated
[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-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" "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] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] a34303663928be7c6325994497f1ef42c62843bf2adc061d9674f4adf8d034ba
[INFO] running `Command { std: "docker" "start" "-a" "a34303663928be7c6325994497f1ef42c62843bf2adc061d9674f4adf8d034ba", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "a34303663928be7c6325994497f1ef42c62843bf2adc061d9674f4adf8d034ba", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a34303663928be7c6325994497f1ef42c62843bf2adc061d9674f4adf8d034ba", kill_on_drop: false }`
[INFO] [stdout] a34303663928be7c6325994497f1ef42c62843bf2adc061d9674f4adf8d034ba
[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" "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] [stdout] 1550d88c25fd3e0a61c4a4d2a06005ada3e5db725816f6c63b0499a173db0ec1
[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" "1550d88c25fd3e0a61c4a4d2a06005ada3e5db725816f6c63b0499a173db0ec1", kill_on_drop: false }`
[INFO] [stderr]    Compiling io-lifetimes v0.2.3
[INFO] [stderr]    Compiling unsafe-io v0.8.2 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.89s
[INFO] running `Command { std: "docker" "inspect" "1550d88c25fd3e0a61c4a4d2a06005ada3e5db725816f6c63b0499a173db0ec1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1550d88c25fd3e0a61c4a4d2a06005ada3e5db725816f6c63b0499a173db0ec1", kill_on_drop: false }`
[INFO] [stdout] 1550d88c25fd3e0a61c4a4d2a06005ada3e5db725816f6c63b0499a173db0ec1
[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" "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] [stdout] 3c99e2bbc03a35f0a4388640740f754bd49529c571c91eeb716f03f767d520bc
[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" "3c99e2bbc03a35f0a4388640740f754bd49529c571c91eeb716f03f767d520bc", kill_on_drop: false }`
[INFO] [stderr]    Compiling unsafe-io v0.8.2 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 2.22s
[INFO] running `Command { std: "docker" "inspect" "3c99e2bbc03a35f0a4388640740f754bd49529c571c91eeb716f03f767d520bc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3c99e2bbc03a35f0a4388640740f754bd49529c571c91eeb716f03f767d520bc", kill_on_drop: false }`
[INFO] [stdout] 3c99e2bbc03a35f0a4388640740f754bd49529c571c91eeb716f03f767d520bc