[INFO] cloning repository https://github.com/shuternay/Johnson-independence-numbers
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/shuternay/Johnson-independence-numbers" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fshuternay%2FJohnson-independence-numbers", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fshuternay%2FJohnson-independence-numbers'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] e257856a7634ac4706696335e962756007742f86
[INFO] checking shuternay/Johnson-independence-numbers against master#7f5a42b073dc2bee2aa625052eb066ee07072048 for pr-78991
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fshuternay%2FJohnson-independence-numbers" "/workspace/builds/worker-7/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-7/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/shuternay/Johnson-independence-numbers on toolchain 7f5a42b073dc2bee2aa625052eb066ee07072048
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+7f5a42b073dc2bee2aa625052eb066ee07072048" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/shuternay/Johnson-independence-numbers
[INFO] finished tweaking git repo https://github.com/shuternay/Johnson-independence-numbers
[INFO] tweaked toml for git repo https://github.com/shuternay/Johnson-independence-numbers written to /workspace/builds/worker-7/source/Cargo.toml
[INFO] crate git repo https://github.com/shuternay/Johnson-independence-numbers already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+7f5a42b073dc2bee2aa625052eb066ee07072048" "fetch" "--locked" "--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" "rustops/crates-build-env@sha256:6eabd152ff4036248d66efda456a36cb33d24b7291b33f25f75140726c88da35" "/opt/rustwide/cargo-home/bin/cargo" "+7f5a42b073dc2bee2aa625052eb066ee07072048" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 797ab63124feb4d4c4ddb5971ce4bc158fe7460de27025c48b1565b2e718e463
[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" "797ab63124feb4d4c4ddb5971ce4bc158fe7460de27025c48b1565b2e718e463", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "797ab63124feb4d4c4ddb5971ce4bc158fe7460de27025c48b1565b2e718e463", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "797ab63124feb4d4c4ddb5971ce4bc158fe7460de27025c48b1565b2e718e463", kill_on_drop: false }`
[INFO] [stdout] 797ab63124feb4d4c4ddb5971ce4bc158fe7460de27025c48b1565b2e718e463
[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" "rustops/crates-build-env@sha256:6eabd152ff4036248d66efda456a36cb33d24b7291b33f25f75140726c88da35" "/opt/rustwide/cargo-home/bin/cargo" "+7f5a42b073dc2bee2aa625052eb066ee07072048" "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] 833b9563d188bfa83af8285941ae35cc20d182fa8d288fcfc750047f8fcf8e02
[INFO] running `Command { std: "docker" "start" "-a" "833b9563d188bfa83af8285941ae35cc20d182fa8d288fcfc750047f8fcf8e02", kill_on_drop: false }`
[INFO] [stderr]    Compiling num-complex v0.2.1
[INFO] [stderr]    Compiling num-traits v0.2.12
[INFO] [stderr]    Compiling num-integer v0.1.43
[INFO] [stderr]     Checking itertools v0.9.0
[INFO] [stderr]     Checking ndarray v0.13.1
[INFO] [stderr]     Checking ostergard v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 13.19s
[INFO] running `Command { std: "docker" "inspect" "833b9563d188bfa83af8285941ae35cc20d182fa8d288fcfc750047f8fcf8e02", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "833b9563d188bfa83af8285941ae35cc20d182fa8d288fcfc750047f8fcf8e02", kill_on_drop: false }`
[INFO] [stdout] 833b9563d188bfa83af8285941ae35cc20d182fa8d288fcfc750047f8fcf8e02