[INFO] fetching crate cc 1.0.66...
[INFO] building cc-1.0.66 against 1.49.0 for beta-1.50-1
[INFO] extracting crate cc 1.0.66 into /workspace/builds/worker-9/source
[INFO] validating manifest of crates.io crate cc 1.0.66 on toolchain 1.49.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.49.0" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate cc 1.0.66
[INFO] finished tweaking crates.io crate cc 1.0.66
[INFO] tweaked toml for crates.io crate cc 1.0.66 written to /workspace/builds/worker-9/source/Cargo.toml
[INFO] crate crates.io crate cc 1.0.66 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.49.0" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/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:c8ac004eab7d63a0ad09a2dde3d3353ba464f767bee4de425dc8f74c46a1905e" "/opt/rustwide/cargo-home/bin/cargo" "+1.49.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 2077d390bd0ec355a4a02df702a45480f3e81ec34b764ab5c248925ef7c012a0
[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" "2077d390bd0ec355a4a02df702a45480f3e81ec34b764ab5c248925ef7c012a0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "2077d390bd0ec355a4a02df702a45480f3e81ec34b764ab5c248925ef7c012a0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2077d390bd0ec355a4a02df702a45480f3e81ec34b764ab5c248925ef7c012a0", kill_on_drop: false }`
[INFO] [stdout] 2077d390bd0ec355a4a02df702a45480f3e81ec34b764ab5c248925ef7c012a0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/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=warn" "-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:c8ac004eab7d63a0ad09a2dde3d3353ba464f767bee4de425dc8f74c46a1905e" "/opt/rustwide/cargo-home/bin/cargo" "+1.49.0" "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] 5372693f55236be5a4c0cf4e04c2a2bcbabaf0a10bc7942c362da071ec98842c
[INFO] running `Command { std: "docker" "start" "-a" "5372693f55236be5a4c0cf4e04c2a2bcbabaf0a10bc7942c362da071ec98842c", kill_on_drop: false }`
[INFO] [stderr]    Compiling cc v1.0.66 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2.58s
[INFO] running `Command { std: "docker" "inspect" "5372693f55236be5a4c0cf4e04c2a2bcbabaf0a10bc7942c362da071ec98842c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5372693f55236be5a4c0cf4e04c2a2bcbabaf0a10bc7942c362da071ec98842c", kill_on_drop: false }`
[INFO] [stdout] 5372693f55236be5a4c0cf4e04c2a2bcbabaf0a10bc7942c362da071ec98842c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/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=warn" "-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:c8ac004eab7d63a0ad09a2dde3d3353ba464f767bee4de425dc8f74c46a1905e" "/opt/rustwide/cargo-home/bin/cargo" "+1.49.0" "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] 70286547dcd5515c411d37f8dca58c551ab2a270ccf23d57582547feb35497d3
[INFO] running `Command { std: "docker" "start" "-a" "70286547dcd5515c411d37f8dca58c551ab2a270ccf23d57582547feb35497d3", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.80
[INFO] [stderr]    Compiling getrandom v0.1.15
[INFO] [stderr]    Compiling remove_dir_all v0.5.3
[INFO] [stderr]    Compiling rand_core v0.5.1
[INFO] [stderr]    Compiling rand_chacha v0.2.2
[INFO] [stderr]    Compiling rand v0.7.3
[INFO] [stderr]    Compiling tempfile v3.1.0
[INFO] [stderr]    Compiling cc v1.0.66 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 11.45s
[INFO] running `Command { std: "docker" "inspect" "70286547dcd5515c411d37f8dca58c551ab2a270ccf23d57582547feb35497d3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "70286547dcd5515c411d37f8dca58c551ab2a270ccf23d57582547feb35497d3", kill_on_drop: false }`
[INFO] [stdout] 70286547dcd5515c411d37f8dca58c551ab2a270ccf23d57582547feb35497d3