[INFO] fetching crate natural_constants 0.1.0...
[INFO] checking natural_constants-0.1.0 against master#195ad4830e11a544391abe296b146450dea8411b for pr-82781
[INFO] extracting crate natural_constants 0.1.0 into /workspace/builds/worker-9/source
[INFO] validating manifest of crates.io crate natural_constants 0.1.0 on toolchain 195ad4830e11a544391abe296b146450dea8411b
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+195ad4830e11a544391abe296b146450dea8411b" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate natural_constants 0.1.0
[INFO] finished tweaking crates.io crate natural_constants 0.1.0
[INFO] tweaked toml for crates.io crate natural_constants 0.1.0 written to /workspace/builds/worker-9/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+195ad4830e11a544391abe296b146450dea8411b" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+195ad4830e11a544391abe296b146450dea8411b" "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:f2f6bcd4b43ebee4e173f653a26493129bdb64017c85f916b780ca7fbdbaa79d" "/opt/rustwide/cargo-home/bin/cargo" "+195ad4830e11a544391abe296b146450dea8411b" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] f417cec9710571154879aba04080667b8500193f36e9b12959ce18aed9937b8e
[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" "f417cec9710571154879aba04080667b8500193f36e9b12959ce18aed9937b8e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "f417cec9710571154879aba04080667b8500193f36e9b12959ce18aed9937b8e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f417cec9710571154879aba04080667b8500193f36e9b12959ce18aed9937b8e", kill_on_drop: false }`
[INFO] [stdout] f417cec9710571154879aba04080667b8500193f36e9b12959ce18aed9937b8e
[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:f2f6bcd4b43ebee4e173f653a26493129bdb64017c85f916b780ca7fbdbaa79d" "/opt/rustwide/cargo-home/bin/cargo" "+195ad4830e11a544391abe296b146450dea8411b" "check" "--frozen" "--all" "--all-targets" "--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] 899bd67d0e1c0664a65e5bfaafb22c9a806bbdf9012dfcaa5c0bce73ae250d0e
[INFO] running `Command { std: "docker" "start" "-a" "899bd67d0e1c0664a65e5bfaafb22c9a806bbdf9012dfcaa5c0bce73ae250d0e", kill_on_drop: false }`
[INFO] [stderr]     Checking natural_constants v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.79s
[INFO] running `Command { std: "docker" "inspect" "899bd67d0e1c0664a65e5bfaafb22c9a806bbdf9012dfcaa5c0bce73ae250d0e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "899bd67d0e1c0664a65e5bfaafb22c9a806bbdf9012dfcaa5c0bce73ae250d0e", kill_on_drop: false }`
[INFO] [stdout] 899bd67d0e1c0664a65e5bfaafb22c9a806bbdf9012dfcaa5c0bce73ae250d0e