[INFO] fetching crate b2histogram 1.0.0...
[INFO] checking b2histogram-1.0.0 against try#55b3f428b4fac6790b1e8492e0b91ff2d80aec7c for pr-77035
[INFO] extracting crate b2histogram 1.0.0 into /workspace/builds/worker-9/source
[INFO] validating manifest of crates.io crate b2histogram 1.0.0 on toolchain 55b3f428b4fac6790b1e8492e0b91ff2d80aec7c
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+55b3f428b4fac6790b1e8492e0b91ff2d80aec7c" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate b2histogram 1.0.0
[INFO] finished tweaking crates.io crate b2histogram 1.0.0
[INFO] tweaked toml for crates.io crate b2histogram 1.0.0 written to /workspace/builds/worker-9/source/Cargo.toml
[INFO] crate crates.io crate b2histogram 1.0.0 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+55b3f428b4fac6790b1e8492e0b91ff2d80aec7c" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr] warning: only one of `license` or `license-file` is necessary
[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" "+55b3f428b4fac6790b1e8492e0b91ff2d80aec7c" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 57c601cd8cd860483f409fa038f750f3ea63a7faf8bbf69595e30f4ea5dcae0d
[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" "57c601cd8cd860483f409fa038f750f3ea63a7faf8bbf69595e30f4ea5dcae0d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "57c601cd8cd860483f409fa038f750f3ea63a7faf8bbf69595e30f4ea5dcae0d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "57c601cd8cd860483f409fa038f750f3ea63a7faf8bbf69595e30f4ea5dcae0d", kill_on_drop: false }`
[INFO] [stdout] 57c601cd8cd860483f409fa038f750f3ea63a7faf8bbf69595e30f4ea5dcae0d
[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=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:c8ac004eab7d63a0ad09a2dde3d3353ba464f767bee4de425dc8f74c46a1905e" "/opt/rustwide/cargo-home/bin/cargo" "+55b3f428b4fac6790b1e8492e0b91ff2d80aec7c" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 533aa686641ee01b754266ead51cef4416b38f298046fd70c2203a9b922ffb0d
[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" "533aa686641ee01b754266ead51cef4416b38f298046fd70c2203a9b922ffb0d", kill_on_drop: false }`
[INFO] [stderr] warning: only one of `license` or `license-file` is necessary
[INFO] [stderr]     Checking b2histogram v1.0.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.85s
[INFO] running `Command { std: "docker" "inspect" "533aa686641ee01b754266ead51cef4416b38f298046fd70c2203a9b922ffb0d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "533aa686641ee01b754266ead51cef4416b38f298046fd70c2203a9b922ffb0d", kill_on_drop: false }`
[INFO] [stdout] 533aa686641ee01b754266ead51cef4416b38f298046fd70c2203a9b922ffb0d